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introduction： The width of the coil sleeve Outside diameterD breadthB 6～7 5，10 8～10 10，15
2015-02-19 Reading quantity 1459
introduction：Use it at workIKObearing[IKObearing:IKONeedle roller bearing with its special internal structure to achieve the mechanical design of small、Light weight。Guideway bearings are based on the high quality given by needle roller bearings，Precision machining with unique mechanical equipment，Evaluate the quality of the latest machines，Products always maintain high performance and high quality level。]Sound characteristics，Only in this way can we accurately determine whether there is an anomaly，When the rolling bearing is working，Normally, yes，Smooth running、brisk，non-stagnation，The sound occurs harmoniously and without noise，Can be heard evenly and continuously“uproar”The sound，perhaps
2015-02-19 Reading quantity 1621
introduction：Ground vehicle mechanics terrain vehicle mechanics bicycle bicycle Automotive mechanics mechanics of motor vehicle Automobile production production of motor vehicle Automobile train tractor-trailer combination Automobile safety safety of motor vehicle Automobile body automotive body
2015-02-19 Reading quantity 2919
introduction：G0、G1、G2、G3Is descriptive surface、The continuous manner of the curve，smoothness，It is generally used to judge the quality of surface when repairing surface。 G0——Dot continuity：Refers to the surface or curve point continuous。Curve without breakpoint，There is no crack at the surface contact。 Decision method：Continuous curve，But with horns；The surface has no holes or cracks，But there is a mistake.。 Mathematical interpretation：The intersection of a curve or any plane with the surface is continuous everywhere。 G1——Tangentially continuous：Refers to the surface or curve point continuous，And all the connected line segments、The surface pieces are all tangent to each other。 Decision method
2015-02-18 Reading quantity 2813
introduction：With the continuous improvement of injection molding processing accuracy requirements，In addition to the correct selection of materials and modification of the selected plastic，How to choose the correct molding process conditions，The relationship between the comprehensive shrinkage rate of the product and the parameters of the processing technology is analyzed reasonably，And the shrinkage rate of various reasons and processing factors on its influence is a very important subject。 1 Experimental part 1.1 Experimental material PP：1390type，Injection grade copolymerizationPP，Beijing Yanshan Petrochemical Company。 1.2 equipment Injection machine：SZ-100／160NB，Ningbo plastic machinery factory；
2015-02-18 Reading quantity 2880
introduction：1）Heat treatment equipment should be checked before heat treatment、Auxiliary equipment、Gauges, etc., are up to standard and normal，Whether the temperature difference between different parts of the furnace is within the specified range（±5℃）； 2）Sand blowing or washing should be done before loading the furnace，Should be free of oil、filth、soil，Alloy grades should not be mixed； 3）Castings whose shape characteristics are prone to warping should be placed on special chassis or supports，Overhanging cantilever parts are not allowed； 4）The single casting or attached casting test rod for checking the performance of the casting should be treated with the parts in the same furnace，To truly reflect the performance of the casting； 5）Should be checked at any time during the heat preservation period、Calibrate the temperature throughout the furnace，Prevention bureau
2015-02-18 Reading quantity 1554
introduction：2-1.Ferritic steel Chromium greater than14％Low carbon chromium stainless steel，Chrome dry27％Any carbon content of chromium stainless steel，Molybdenum is added on the basis of the above components、titanium、niobium、silicon、aluminum、、tungsten、Vanadium and other elements of stainless steel，The elements that form ferrites dominate the chemical composition，The matrix structure is ferrin。This kind of steel is being quenched（Solid solution）The structure in this state is ferrite，A small amount of carbides and intermetallic compounds can be found in the annealed and aged tissues。 Those who fall into this category areCrl7、Cr17Mo2Ti、Cr25，Cr25Mo3Ti
2015-02-18 Reading quantity 1542
introduction： towardsNSKImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]The conditions required、Performance is also increasingly diverse。In order to be able to from a large number of structures、In size， Various mechanical devices using rolling bearings、The performance of instruments and other market requirements are becoming more stringent。Choose the best fitNSKImported bearing[Imported bearing:Simply put, imported bearing agent refers to engaging in a certain
2015-02-18 Reading quantity 1460
introduction：Liugong Machinery Co., Ltd. is the backbone enterprise of Chinas construction machinery industry，Is the state863projectCIMSApplication demonstration enterprises and national enterprise informatization pilot units。In recent years, the information system has supported the rapid development of the company，However, the connection between the companys underlying CNC machining equipment and the information system is still weak，Through the information system to NC machining equipment down NC machining code or NC machining equipment information feedback can not be real-time，This pair of CNC machining equipment unified management、Enhanced machining flexibility、The rate of improvement is very bad。For this purpose，Liugong decided to find a system to solve the CNC machining equipment with the existing information system
2015-02-18 Reading quantity 2778
introduction： Principles of electric forklift assembly 1、Pay attention to the seals in the assembly of the electric forklift。The specified sealing structure and sealing material shall be used，Substitutes shall not be used arbitrarily。Pay attention to the quality and cleanliness of the sealing surface，Pay attention to the assembly method and assembly tightness of seals，Suitable sealant can be used for static seals。Pay attention to the locking safety device。During assembly，Attention should be paid to the quality inspection of the intermediate link。 2、The assembled zero、The components themselves must meet the specified technical requirements。In order to ensure the maintenance and repair quality of the machinery
2015-02-18 Reading quantity 2792
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