Baixiong Klimens Machinery Co.,Ltd

Modern plastic injection molding machine is a set of mechanical, electrical and fluid in one typical system, as this device has forming complex products, less post-processing, processing characteristics of the plastic variety, since its inception, has grown rapidly, the current Over 80% of the world’s products are used plastic injection molding machine for processing. 

Conventional injection molding machines generally use a simple open-loop control, that is, in accordance with a pre-set value of control. In the device manufacturing process, pre-configured parameter values, such as the clamping force, cycle time, temperature, etc., from the machine in the production process be maintained.  For example, by controlling the die temperature can be maintained the temperature of heating fluid, plastic temperature can be outside the heating device by controlling the power to maintain.  This control method of simple structure, however, poor anti-interference ability to control the temperature is relatively low. At present, more injection molding machine uses a closed-loop control, that is, according to on-line measurement value and set the value of the deviation control.  Closed-loop control system uses a negative feedback loop, anti-jamming ability, when the injection speed, injection pressure, mold cavity temperature, cavity pressure, melt temperature and oil pressure due to interference in the production process, deviation of the machine through the adaptive control system for automatic correction of interference. This control method is with anti-interference ability, high control accuracy.  More advanced control method is to apply computer controlled, that is, to build a closed-loop real-time computer control system.It includes direct digital control system (DDC), supervisory computer control system (SCC), distributed control system (DCS) and multi-level control of several types. 

At present, the commonly used injection molding machine control

system has three kinds, namely, the traditional relay-based, programmable controllers and computer-based control type.

In recent years, programmable logic controller (referred to as PLC) with its high reliability and high-performance characteristics in injection molding machine control system has been widely used.  In order to improve the level of injection molding machine control system and quality, a higher level than the PLC, control system design specifically for small and medium programmable computer controller (PCC) came into being.  PCC integrates a standard PLC and industrial control computer features, multi-task time-sharing operating systems, data computing and processing power more powerful than the PLC. PCC formed with injection molding machine control system in order to achieve, including position control, speed control, temperature control, fault control and real-time display the whole process such as injection molding a variety of control can greatly improve the quality of plastic products will help enhance economic benefits.

Control of the contents of the injection molding machine:  

At present, the injection molding machine process control system mainly consists of two parts: First, the temperature control system in order to right barrel, melt and mold temperature control; second motion control system to the process of injection pressure, velocity and displacement multi-level switch. 

  In the temperature control, its control accuracy has reached a ± 1 ℃. Precise temperature control in precision injection molding that help improve product quality and availability of raw materials is a very important indicator. In the plastic processing, temperature control include barrel, nozzle and mold temperature control.

Barrel temperature of the barrel surface heating temperature, due to relatively thick wall barrel, so the choice of thermocouple detection point is critical, and different test points on the temperature curve is a large difference.

Therefore, parallel detection of double-point, namely, surface and deep in the barrel at the same time set the thermocouples, will be relatively stable temperature curve is conducive to temperature control accuracy.  Nozzle melt temperature directly affects the passage of the shear flow, the quality of the products have a major impact, so the nozzle temperature control precision demanding.  Mold temperature is in contact with the product mold cavity surface temperature, it will significantly affect the charge membrane, cooling and packing process.  For the mold temperature control method can be used control the heat carrier temperature method can also directly control the mold temperature. In the former approach, in order to heat the temperature for the control of the export vector objects, is relatively simple and can meet the general temperature control requirements.  When the temperature control precision is high generally use the second method of temperature control.

Injection speed, packing pressure, back pressure is the injection of part as to control the first of the three variables directly affect the accuracy of its control product quality.  Modern more advanced injection molding machine equipped with 5-10 multi-stage injection speed and packing as well as the back-pressure control sol.

Generally through displacement / velocity sensors, pressure sensors, closed-loop injection control, and high response servo valves used in conjunction to achieve back-pressure injection molding process in the sol, injection speed and packing conditions of precise control.  Another relatively simple approach is to use closed-loop proportional valve, through the proportional valve spool position of their own closed-loop control to improve control precision. However, spool position is an intermediate variable, so the control accuracy somewhat less. 

 Transfer mold process control variable is the main clamping force, clamping force and time again is stable and the necessary conditions for forming the cycle. Transfer mode control of the process should be another important variable is location. 

 On the one hand, advanced injection molding machine constant pursuit of efficiency, directly affect the speed of transfer mold molding cycle, and quickly transfer to the deceleration control mode in itself has put forward higher requirements. On the other hand, due to special process of continuous development and promotion of position control precision molds have become increasingly demanding.

At Drinktec, Sidel is launching the SBO Universal(TM)2 range, which accelerates industrial blow molder outputs by 10% – reaching 2,000 bottles per hour per mold – while also decreasing energy consumption by 10% in the ovens. The result is the possibility of blowing bottles from recycled PET.

With this new record speed of 2,000 bottles per hour per mold, Sidel is widening its portfolio of solutions for the still and sparkling beverage markets. This output rate is the result of a long, rigorous qualification process that has already been
tested and validated during industrial production at several customer facilities.
This speed, which is ideal, reliable and safe for intensive industrial operation, applies to all machines in the SBO Universal(TM)2 range, up to SBO 24 XS. Also available in Combi configuration, the SBO Universal(TM)2 range reaches record productivity levels as well, without any compromise in terms of robustness or production reliability. Unplanned machine downtime is reduced to less than 3% due to the use of more robust components and a fewer number of spare parts. It also ensures flawless productivity with guaranteed yields of 97% and optimized production costs.

In addition, the new SBO Universal(TM)2 machines benefit from the same heating reserve that is already available with SBO Universal(TM) equipment. The oven configuration with 50 mm pitch (distance between two spindles) ensures a sufficient heating time for an output rate of 2,000 bottles per hour per mold. New lamps and oven adaptations enable a decrease in energy consumption of up to 10%.

Reaching this new performance level for blow molding represents a new step forward in reducing the environmental impact of each PET bottle during its production.

Generalizing the use of recycled PET

At the same time, Sidel is also committed to improving the environmental footprint of the bottle itself, by facilitating the generalization of bottles made from recycled PET resin. The 1.5-liter mineral water bottle produced at the Sidel stand with an SBO 14 -at a speed of 2,000 b/h/m- has all the attributes of a traditional PET bottle – crystallinity, resistance and elegance. However, it can display plantbased forms on its sides since it contains 50% recycled materials. This bottle is the fruit of a joint development with Husky, the world leader in PET preform injection systems.

Since the use of recycled materials is one of Sidel’s focus areas for reducing the industry’s environmental footprint, the Group is working hand in hand with the plastic recycling industry and with bottlers in order to pursue a single objective: to give more weight to the production of recycled PET bottles. And a single commitment: to ensure reliable production for this type of package, by obtaining equivalent industrial performance to that with virgin PET bottles. For several years now, Sidel has been conducting a number of tests to qualify resins and to adapt its equipment. Still, 50% recycled material is not the limit. Sidel is continuing its work and has already conducted laboratory tests on blowing bottles with 100% recycled materials, ready for market. This can be done without affecting blowing performance because of the wide processability window for these machines.

These innovations, along with continued work on package lightweighting, bear witness to Sidel’s firm commitment: being the leader for plastic packaging equipment means having the opportunity, the power and the responsibility to change the plastic bottling universe.

About the Sidel Group

With more than 30,000 machines installed in 190 countries and with annual sales of 1.19 billion euros in 2008, the Sidel Group is one of the world’s leaders in beverage packaging solutions: water, carbonated soft drinks, milk, sensitive beverages, oils, beer and alcoholic beverages. Sidel has production sites in 13 countries as well as sales and service offices in 30 countries. Around the world, the Group’s 5,550 employees provide customers with complete bottling solutions, including package design, line engineering, packaging machines and related services.

2010 Machinery Industry sales growth is expected to reach 15%, profit growth is expected to reach 10%, and export growth is expected to reach 15%. In the China Machinery Industry Federation recently held three secondary members of Congress, executive vice president of the machine in conjunction of the 2010 machine-building industry has made major economic indicators for the latest forecasts.

In 2009, China’s machinery industry rose 13.8% value-added, total output growth rate reached 16.07%, machinery industry maintained a stable and rapid growth. However, structural adjustment, with the major equipment compared to the results of independent innovation, “Laying a Solid Foundation,” the progress has lagged far behind; and the rapid rebound in the domestic market compared to the monthly value of exports have not yet effective amplification; compared with the current economic growth, trade long-term sustainability is still optimistic about the prospects for steady growth. As a result, predicted to run China’s machinery industry in 2010 will show the trend from high to low.

Structural Adjustment bear fruit fruitful independent innovation

From 2009 the operational features of China’s machinery industry point of view, equipment manufacturing and automotive industries to restructure and revitalize the implementation of effective planning policies to gradually release the effects of policies to support key industries, particularly notable, agricultural machinery and automobile industry policy support under the pick-up is noticeably faster than in other industry, particularly in the automotive industry, machinery industry growth in 2009 to become the “engine.” The automobile production and sales in China has leapt to the superpower.

While maintaining steady and rapid development at the same time, mechanical bear fruit showing signs of adjustment of industrial structure.

Second half of 2008 to May 2009, China’s machinery industry output value of new products, industrial output growth rate has been lower than the same period. Since June 2009, the new products, higher growth rate from month to month throughout the year value of new products increased by 23.74 percent, industrial output growth rate has been higher than the same period, which showing that the industry and technological progress driven by the demand in the market to become more active again.

From basic machinery industry perspective, the various industries in decline at the same time, structural optimization presents highlights: According to the 197 key enterprises of the machine tool industry statistics, in 2009 1 September NC metal processing machine tool production rate increased by 6 percentage points year on year, reaching 53.6%; metal cutting machine tool production fell 30.6%, but the average unit price increased by 34%; CNC machine tool production fell 13.8%, unit prices increased by 21%. Moreover, the decline in production of CNC machine tools significantly less than general machine tools, CNC machine tools in the production of high-end machine tools fell significantly less than the economic-type machine tools, machine tools this can be seen clearly escalating momentum.

At the same time, and energy-saving emission reduction-oriented product structure adjustment has also made great progress. 1.6 liter and below low-emission passenger car sales of 7.1955 million annual aggregate, up 71%, accounting for 70% of the total passenger car sales over the previous year by nearly 8 percent of the entire automotive market degree of contribution to the increase reaching 70%; wind power generation equipment and DC power transmission equipment, and other new energy sources and equipment to double production growth, medium and large horsepower tractors and other agricultural equipment, and efficient growing rapidly; efforts to contribute to energy reduction has become an industry-wide consensus on this as a important orientation of product structure adjustment is more and more enterprises attach great importance.

Cope with the international financial crisis, the machinery industry enterprises have increased their R & D investment, more emphasis on endogenous levels of development improved.

Among them, the world’s leading standard of living in the exchange of complete sets of equipment in the UHV line safe operation of pilot demonstration has been a year, special high-voltage direct current key equipment was put into operation by the end of 2009 a successful, 30 kilowatts or more large-scale thermal power production accounts for thermal power production rose from 2008’s 80.8% to 82%; independently developed a large-scale open pit mine 220 tons of used electric-wheel dump truck was completed in 2009 identified; million tons of ethylene installation of the required three main compressors and multi-stream low-temperature cold box The successful development of domestic natural gas pipeline compressor and the valve was finally implemented in the West-East Gas Project Phase II development contract; 1080 tons and 500 tons of crawler cranes, all terrain cranes, etc. The successful development of large construction machinery; high-end CNC machine tools and basic the implementation of major national special manufacturing equipment to make progress, the highest in the world’s largest listed size of the boring bar diameter of 320 mm, floor boring and milling machine was successfully developed; 36,000 tons of ferrous metals vertical extrusion machine developed. Uneven products sales phenomena are no longer together all sectors showed growth potential.

Analysis of the current domestic and international situation and the development of the industry status, said that the total demand by 2010, although the machinery industry rose steadily, but because of industry-wide capacity to grow too fast, it will become more intense competition, businesses are feeling the competition pressures will continue to increase; the whole industry sales volume will continue to build on the steady growth over the previous year, but under the impact of excessive competition and efficiency growth rate may be lower than the production and marketing; in 2010 will be the beginning of the growth rate is relatively high, even higher than the 50%, but then will gradually decline, annual growth rate curve will show a clear trend from high to low.

Based on the above analysis, which is sub-development of the industry made a prediction. Among them, agricultural machinery industry: the demand for farm machinery purchase continuing positive impact of national policy is expected to remain at the next higher level than the previous year but the growth rate slowed down and sales are expected to grow by 10% ~ 15%.

Construction Machinery: growth rate of the high and then low, about 10% of the whole year is expected to achieve moderate growth, the various main products is expected to reduce the gap between the products sales.

Electrical industry: domestic demand continued to decline conventional power generation equipment, but still essential to maintain the original orders for the normal production this year is expected next year after a serious shortage of mission will usher in a severe test; in the future the proportion of exports in total output will increase; power station cast contradiction is expected to slow down the supply of forgings; wind power and nuclear power and new energy equipment and mining is expected to increase in demand for electrical equipment; transmission and distribution equipment due to excessive capacity expansion and network growth rate of investment is limited, so competition is expected in 2010 will significantly increase. The whole industry is expected to grow by about 12%.

Heavy Mining Machinery: metal rolling equipment, metallurgical equipment, and demand continues to sluggish demand for mining equipment, mining and washing is expected to remain stable, large castings and forgings as a breakthrough in thermal processing technology and key equipment, significant improvement in production capacity is expanding rapidly, imports replacement volume will be increased significantly. Industry-wide sales are expected to grow by 5% ~ 10%.

General petrochemical equipment: machine valve and tower cauldron and other petrochemical and general equipment demand is expected to maintain steady growth, particularly in nuclear power, natural gas, liquefied natural gas, long-distance pipelines and installations needed for high-end products will be a breakthrough in independent innovation has a broad prospects for development. Industry-wide sales expected to grow by about 15%.

Machine tool industry: In the large aircraft and nuclear power and other major scientific and technological support of special needs, the high-end CNC machine tools and heavy machine tools, production situation will remain in good condition, all kinds of special plane to meet user requirements and the line has broad space for development, heavy-duty machine tools new orders growth is expected to be slowing down, there is no basis for the proposed business should not blindly enter.

Automotive industry: purchase of 1.6 liters and below, preferential policies intensity of low-emission vehicles by half, but to encourage trade-in policy efforts to increase; China’s auto market there is still much room for development, the automotive market is the second-line and extended the following cities and rural areas, aggregate demand will continue to grow, but the momentum of growth will significantly slow down this year, is expected to grow about 10%.

Instruments: energy-saving environmental monitoring and control equipment, the people’s livelihood with the instrumentation, process monitoring and control equipment for industrial use in high-grade, factory automation and control equipment using relatively quickly, the whole industry is expected to grow around 11%.

Cultural office equipment: maintaining the warming trend at the end of the year is expected to grow about 10%.

Hydraulic, pneumatic, seals, fasteners, gears, bearings and other basic parts industry: expected to grow by about 10%.

Engine: Expected production increased by 6%, of which automotive and engineering machinery, agricultural machinery increased by about 10% of the engine, low-speed trucks, small tractors, irrigation and drainage, generator sets with an increase of 6% of the engine, small gasoline engines an increase of 3.5% or so.

With the layout of foreign capital in China, stamping die industry to speed up structural adjustment, the domestic low-end mold enterprise brand management and sustainable development, in 2009 China’s mold industry will continue to sunshine. 

 Small mold Enterprise: accelerateddevelopment of high-grade die 
       As the automotive industry in recent years with more than 20% increase in the development of the automotive sector into the mold and mold products companies have a substantial increase over the previous year.  Auto companies also mold the quality of products put a higher demand, prompting companies to step up to improve mold and continuously improved.  At the same time, due to a substantial increase in export molds, to a large extent driven to enhance the level of the mold.  Raise the level of mold in 2008 mainly include: the length of a large progressive die has been more than three meters, precision progressive die has been with 2000 times / min high-speed punch matching; hot runner mold and gas assisted mold, some up to international standards; in CAD / CAM technology is popular at the same time, CAE technology more widely, CAD / CAE / CAM integrated technology to develop, and achieve better results; mold new structure, new products, new processes, new materials, innovations continue to emerge , an increase in the number of patents.
E-commerce boom dies off 
Information technology, especially information management, not only have been a number of die business on the agenda, but also have been implemented. In the implementation process, the software at home and abroad was competing against the secondary development of fruitful, growing rich in the database. Through information management, mold production cycle is much shorter, the production efficiency, increase enterprise efficiency.
China mold companies take the road of joint development of Production and demand booming market environment and good prospects for development, making many entrepreneurs and investors to actively invest in China’s mold industry, including foreign and private capital is still the mainstream, the investment enthusiasm of the general high, the larger technological transformation projects and new project in 2006, continued to emerge. As the clusters produced in collaboration with the convenience and lower costs, expand markets, facilitate communication and can enjoy more preferential policies, and consequently this mode of production in 2008 to be further developed. Now the country has a dozen or so city of considerable size of the mold, mold park, the accumulation of production base, are under construction, preparation or planning to have more than 10. In addition to the cluster of production, the mold is still developing in some areas of the Commonwealth and virtual manufacturing.

Mold enterprise brand management and sustainable development 
As the mold from the properties and for special user-dependent, the brand in the mold industry, the long-term were not taken seriously.  But as the development of market economy, the brand effect has become increasingly important, “the brand” has become a mold company a very important task.  It is understood that the country has 10 or so provincial and municipal well-known (the name) die trademarks and brands, individual enterprises have declared the national famous trademark.  With the constant deepening of quality work and attention to environmental protection, in 2008 a large number of mold enterprises have been through the ISO9000 international quality system certification and ISO14000 environmental management certification.  Meanwhile, in 2008 the industry added a large number of high-tech enterprises, including national and provincial, municipal, there are many enterprises was established in 2008, the mold technology center or research center. 
Mold industry professionals a competitive edge 
In view of mold industry talent, especially the serious shortage of senior talent in recent years around the school and training concern. Schools, training points, three aspects of business in 2008, stepped up its efforts and good results have been, the Chinese model of training points in the Association continues to grow across.  In order to further improve the quality of training, foreign exchanges and cooperation has been strengthened, for example: Die Association of Singapore Suzhou relevant education and training co-operation to achieve substantial results, the Chinese Association is also mold and Portugal, Germany and other foreign countries discussed cooperation in training mode Society matters. National authorities is also needed for the mold status of personnel to step up research distance training of personnel to carry out mold, mold designers have become nationally recognized as a new type of work.

2009 from January to November, China blow molding machines (HS 84.773 million) total export 5920 units, down 0.9%, the amount of 99.38 million U.S. dollars, up 2.1%; over the same period imported a total of 212 units, worth nearly 158 million U.S. dollars, year on year reduction of 3 into about 58.58 million U.S. dollars deficit.

Exports: Vietnam, United Arab Emirates, Iran’s top three export markets, of which Vietnam exported 327 units (+3.2%), worth 7.42 million U.S. dollars (-8.1%), exports to the UAE grew by 24.8% to 171 units, However, this amount increased by only 6.2%, to 4.92 million dollars, a larger decline in exports to Iran, exporting 258 units (-36.4%), worth 4.23 million U.S. dollars (-27.4%).

 Export goods from the territory of view, Zhejiang Huangyan, Zhangjiagang, Jiangsu, Guangdong, Guangzhou, Zhejiang Ruian top, including Guangzhou and Ryan have a larger increase in exports of 426 units, respectively (+43%), worth 9.98 million U.S. dollars (+22.7%); 854 units (+50.1%), worth 9.07 million U.S. dollars (+28.9%).  Zhangjiagang decline, export 261 units (-15.3%), worth 11.35 million U.S. dollars (-24.5%), ranking first place in Huangyan exports essentially flat (+1.7%), for 1065 units, but exports increased 13.4%, to 13.62 million U.S. dollars.

From the main import markets to see the amount of imports, in addition to Taiwan (633 million U.S. dollars, +174.2%), Switzerland (689 million U.S. dollars, flat), the rest have declined. Biggest drop in France (-61.7%), Malaysia (-55.6%) and Japan (-46.1%). China blow molding machines in Germany is still the largest source of imports in 2009, imports from January to November from 54 units, the amount of up to 86.85 million U.S. dollars, up 32.5% and decreased by 25%.

China’s imports in terms of destination to the Chengdu Hi-Tech Industrial Development Zone, with six sets total 1.65 million in imports came on top, flat year on year, followed by Yunnan, Kunming, Hangzhou, Zhejiang, Jiangsu and Nanjing, respectively, imports of 3 units, 9 units and 4 units, followed by total amount of 704 million U.S. dollars, 6.42 million U.S. dollars and 605 million U.S. dollars.

B．2009 from January to November, China Plastic Granulator (customs codes 84.77201 million) total export 2131 units, the amount of 24.033 million U.S. dollars, up respectively 33.2% and 34.9% reduction; cumulative reduction in the number of imports 16.9% (118 units) of Under the substantial increase in the amount of 31.8%, up to nearly 120 million U.S. dollars. 

A more balanced distribution of exports, India, Malaysia, Brazil, Thailand, Vietnam, the United States, Japan, Mexico, Russian Federation, Indonesia, plastic pelletizing machine is mainly for the Chinese export market, ranking the first in India, 1.72 million U.S. dollars for their exports, up by reduction of 37.2%. While exports to Mexico grew by 95.1%, to 100 million U.S. dollars, a fall in price increments of Indonesian exports, its exports of 161 units, an increase of 76.9%, but decreased by 59.7%, only 82 million U.S. dollars. 

Germany, Japan, Italy, the United States is the most important of the four major sources of imports, of which Germany accounted for 47%, Japan accounted for nearly three into.In the eight largest source of imports, except from Taiwan and South Korea, relatively significant drop in imports from Australia is only one Taiwan, remained relatively stable, have maintained a momentum of growth in the other, of which imports from Austria surge 188.7 percent, to 5.86 million U.S. dollars, from the Germany, Italy, the United States there were also 42.9%, 68.9% and 137% of the high-speed growth。 

The world’s plastics market competition is very fierce. Extruder manufacturers to ensure the expansion of its market share in the extruder, the need to improve their equipment reliability, reduce costs and to ensure uninterrupted production process.

Choose high reliability of the machines and components is essential. Extrusion machine manufacturers are working on profiles, tubing and membrane with a single screw extruder of the huge market in the fighting, while very reliable, high-quality gear box is very important.

A large number of inputs through the experience gained and the core technology has made Henschel made gear box into a highly reliable, high-performance gear box sign.

Pairs of single-screw extruder gear box with a variety of demands: the
◆ absorb the axial force in the extrusion process

◆ to provide high torque
◆ screw from the driver side will be out of
◆ enough resistance overloads

◆ No lifetime limit of gear
◆ High Efficiency
◆ Low-Noise
◆ High Reliability
◆ excellent price / performance ratio

Straight-tooth gear and self-bit thrust bearings:

   By high-performance extruder specializes in design and manufacture. Gearbox has a thick, shock-absorbing the whole box, install a self-bit thrust bearing. According to user requirements on-site space conditions, gear box can be axial force of the front or rear of absorption. Gearbox structural design will allow the screw through the gear box out. Installation is very easy and convenient. In order to ensure that the gear box can be used in harsh environments and as much as possible to avoid the maintenance needs, using a special seal to prevent dust and dirt into the gear box. As a matching, you can use the labyrinth seal.
Carrying capacity, noise and efficiency optimization:
   Gearbox top designers in the critical carrying capacity, high efficiency and low noise to optimize the balance between.

The fact has been made in the following areas recognized: In order to improve the carrying capacity, leading to the following means to achieve – increasing simultaneously meshing teeth; spiral gear, as well as amendments to the load-type surface, through the lubrication for better heat dissipation and the use of high-quality steel. Efficiency can reduce the loss of flying ability and low-sliding and a small amount of tooth surface needs to speed up the lubrication of gear meshing overlap achieved. By amending face and optimize the pressure angle, each gear geometry, as well as by improving the optimization of Surface contact surface can reduce the noise to a minimum.
Carrying capacity:
   Short time overload caused by too hot corrosion, fatigue, and pitting, micro-pitting and tooth fracture are the main reasons for gear failure. The list of risk factors leading to gear failure can be effective to reduce the lubrication ability.  Adoption and lubricant manufacturers to work closely, HENSCHEL has developed an optimized lubricant. Broken teeth has nothing to do with the lubrication, pitting resistance can be very small lubricant reduces resistance to pitting corrosion.
Not only depends on the lubricant to prevent gear failure:  Optimization of gear tooth geometry is directly related to low-friction running and high-tooth security.  According to DIN3990 standard design software program corresponding fine-tooth surface geometry of the amendment, usually at any given time, making amendments to tooth surfaces and the theory of involute tooth surface at different points are no longer be considered. Tooth is usually the amendment, such as the tooth width and tooth depth to amend or tooth root and tooth top of the amendment will affect the curvature of meshing tooth surfaces. Especially the small gear tooth roots, will be subject to pitting and micro pitting damage. These amendments will result in reduced tooth surface curvature on the pressure increased, offset by a revised reduced pressure.

Make full use of the performance of steel can be achieved through the amendment of topology.  Based on stress theory HERTZIAN software, the program designed to determine the overall pressure distribution within the overlapping area. Topology of the amendment is to reduce the pressure within the area of the peak and to reduce the pressure on the bearing area.  As realized in the overlapping surface pressure compensation, material development and utilization of their potential has been and will not reduce operational security.

In order to ensure there is a large safety factor, HENSCHEL power train technology uses the highest quality steel.  The requirements of the parts suppliers have a clear requirement and to have control of each batch. This will achieve the highest quality control and guarantee the safe operation of all HENSCHEL products.
Noise:
The proliferation of low noise is a growing important issue. HENSCHEL power train long ago adopted a noise damping measures and its configuration in the product.

Low-noise gear is characterized by a high overlap rate, and optimize the amendment to the tooth surface. Therefore, the use of high-conjugate higher gear tooth. This advantage of tooth geometry is that it is a smaller flexible tooth, reducing the time in the meshing and impact.  Heightening of the tooth used to achieve the improvement of load capacity can be achieved.
Noise, at least in the low circumferential speed is mainly generated by the tooth meshing. 

In contrast with the circumferential speed of the proliferation of the noise increases:  

For the advantages of low vibration conduction overlap rate, and will be fully overlap to a high gear used at the same time.The basic parameters of the use of an appropriate choice to achieve a minimum vibration transmission.

The role of efficiency and heat:
Depends on the efficiency of the gearbox of known power and does not depend on power loss.  When using high-conjugate tooth surface due to a greater sliding surface thus reducing efficiency.  Optimized to reduce the injection of lubrication does not depend on power loss. The loss of the proliferation of jet and noise can be reduced to the minimum extent possible.  Extrusion, especially in the case of high-power, low-efficiency will lead to high heat issues.  HENSCHEL power train technology uses optimized lubrication and cooling system to ensure optimum heat exchange efficiency. 

The standard usage of occasions including cooling loop, special shark fin-shaped geometry are to ensure excellent thermal efficiency. Gear boxes for all low-friction bearings and seals together to achieve the highest possible efficiency.

A． Hydraulic system leaks from the main body and the reasons can be summarized as follows:

1, pipe fittings and oil plug, pipe fittings oil spill occurred in the majority of Manifold, valves floor, tubular components and other parts connected with the pipe joints, when the pipe joints with metric thread connections, would cause the leakage of combination washer without good seal ; taper pipe thread and the screw thread connection can not be fully fit easily between the block leakage. In both cases the event is difficult to cure, only with liquid sealant or Teflon tape to seal filling.

2, plate valves, stack valves leak between joints are mainly: the O-ring installation of a knocking, scratching, installation screws long, strong enough, will have a spill. The solution: To solve the above problem be handled separately.

3, resulting in leakage of hydraulic cylinders are more reasons, such as the rod surface adhesion of dust mud and water, salt spray, surface bump injuries, migraine and other reasons set out will result in seal damage, failure caused by oil spills. The solution as far as possible not to make hydraulic cylinders to withstand partial load, often wipe the dust on the piston rod, to avoid knocking, scratching, improving the management of hydraulic oil cleanliness.

4, temperature fever caused by the leakage of the more serious phenomenon, can decrease oil viscosity, or deterioration, so that increases in leakage; the temperature continues to rise and lead to increased expansion of sealing material after the heat friction, so wear faster, axial rotating or sliding parts leak very quickly.  O-ring expansion and deformation caused by thermal aging, after cooling of restitution, loss of elasticity and failure, has the effect of leakage.

Recommendation: regular inspections, regular maintenance and timely treatment are to prevent leakage, reduce the minimum guarantee failure.

  B. Hydraulic system inspection and maintenance of when the hydraulic system overhauls note:

1.  The system work, the shutdown did not pressure relief when not cut off the control power, the ban on system maintenance, prevent the occurrence of human casualties.

2,  Hydraulic transmission is designed with simple structure, stable quality, machinery, high efficiency, easy automation, and many other advantages. Therefore, at present, many large and medium-sized machines are hydraulic transmission, hydraulic technology, but there are oil spills, oil temperature change of control of speed, noise and other defects. How to safely and effectively so that hydro-mechanical operation, according to the system pressure, operating speed, working fuel, ambient temperature and correctly use hydraulic oil, rational use and maintenance, long-term to maintain oil excellent performance and play the best work of performance, is the key to the work. On this point, according to standard operation, scientific management is to take certain preventive measures.
3, to prevent pollution of impurities mixed with hydraulic oil
(1) hydraulic oil, oil drums to be set up in a clean safe place to strengthen management. Used oil drums, oil filter, oil funnel, tubing, etc. should be kept clean. Shipments of hydraulic oil drums must be cleaned in advance, barrels need special, not mixed with other barrels.

 (2) Hydraulic machinery should always be kept clean to prevent dust and debris falling into the oil, the fuel tank should be stamped with seals.

(3) The oil tank should be based on the work of regular replacement. In the oil change, should the fuel tank at the bottom of the dirt accumulated impurities removed, the fuel tank in clean water.
 4, oil pollution of the simple identification methods are:

 (1) Eyesight inspection. Limit of normal human vision is generally about 40μm. Therefore, the oil in the dirt, impurities when the particle size is greater than 40μm, the human eyesight which can see, when the eyesight can be directly observed when the polluted material to illustrate the work of the oil has been dirty, and must be replaced.

(2) In vitro in comparison. With the tube of the new oil and use oil to compare, such as the use of the oil found in the color rendering black and fetid, the must be replaced. Such as color, when there is no change in turbidity, indicating oil contains water, after a clarification to exclude moisture, the oil can continue to use. Such as a transparent color lighter without odor, you may mix of heterogeneous oil, as long as the proper viscosity or you can continue to use.

 (3) to take a drop of the use of heating oil were placed in experimental filter paper, and make it drop down, such as the existence of solid impurities, the residue will be in the filter paper thin black spots, indicating a lot of impurities contained in oil, should not continue in usage.

(4) To ascertain whether the oil-containing water used can be an iron plate heated to 250 Celsius degree is about to drop the use of iron on the drop of oil, if any crack, indicating that contains water. Oil is not water is a silent burning.
5, to prevent air entering the hydraulic system

   In order to prevent air into the hydraulic system, in the use and maintenance should note the following points:

 (1) Petroleum regular checks of the fuel tank height to maintain sufficient oil.

(2) In the working process, the oil will be wear and tear, the importance of timely addition of new oil on the same specifications.

(3) Even if a minimum of oil, the oil absorption tube 1: 3 and the return pipe entrance should be kept below the oil surface.

(4) Use a good seal performance, seal failure should be promptly replaced; pipe joints and the joints at the screw must be tightened.