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introduction：1). Plastic material The complexity of plastic material properties determines the complexity of injection molding process。The properties of plastic materials are different、Different brand、Different manufacturers、Even different batches vary greatly。Different performance parameters may lead to completely different molding results。 2). Injection temperature The melt flows into the cooled cavity，Heat is lost by heat conduction。At the same time，Heat is generated by shearing，This part of the heat may be more than the heat lost by heat conduction，May also be less，Mainly depends on the injection molding conditions。The viscosity of melt decreases with increasing temperature。In this way，Injection temperature
2015-04-14 Reading quantity 2863
introduction：bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]It is one of the important components of construction machinery，Poor installation will affect its use effect，It even causes the failure of construction machinery and equipment。 ifFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a cage assembly with a solid window cage
2015-04-14 Reading quantity 1542
introduction： When using the reducer，The failure of the reducer is a more common thing，This has a lot to do with incorrect maintenance during use，In that way，How should we properly maintain the reducer？ 1、Installing the reducer is best not to use the vertical installation method，Because this installation method will make the reducer lubricating oil consumption is greater，It is also easy to cause heat and oil leakage of the reducer。 2、After each use, the reducer should be cleaned in time，Ensure that the reducer is clean。 3、Add lubricating oil to the reducer regularly，Ensure the lubricity of the reducer，
2015-04-14 Reading quantity 2793
introduction： Technical parameter The name According to/ginseng The number gauge "
2015-04-14 Reading quantity 2791
introduction：Power compressor with high speed rotating impeller（See turbine machinery）。It relies on the interaction between the rotating impeller and the air flow to increase the gas pressure，At the same time, the airflow generates acceleration and gains kinetic energy，The airflow is then slowed down in the diffuser，Convert kinetic energy into pressure energy，Raise the pressure further。The gas flow is continuous in the compression process。Turbine compressor is developed on the basis of fan。It is widely used to transport air and various gases in various processes，And increase its pressure。 The classification varies according to the direction of gas flow，Turbine compressors are mainly divided into axial flow and centrifugal
2015-04-14 Reading quantity 2807
introduction：Abstract：The machining precision of shaft gear hobbing is analyzed，The factors affecting the precision of gear hobbing are found out，In order to improve the quality of hobbing。 Our company is a heavy truck gearbox professional production factory，Shaft gear is the most important part of the gearbox，The machining accuracy directly affects the overall quality of the gearbox。At present, the machining method of the gear teeth is hobbing and shaving。To roll through、The shaving process produces high precision gears，You have to get out of here、Shaving skill level to the best。And the shaving precision depends largely on the gear rolling precision of the saddle，Therefore, some error items in hobbing must be strictly controlled，Talent system
2015-04-14 Reading quantity 2895
introduction：An idealized object for the study of radiative heat transfer。The blackbody is able to absorb all the energy radiated towards it，All kinds of objects at the same temperature have the largest energy radiated from the black body。All objects in nature absorb, to varying degrees, the radiative energy projected on them、Reflection and transmission power。Suppose the total energy projected on the surface of the object isQ,Some of that energyQ1After entering the surface, it is absorbed by the object,Another part of energyQ2Reflected by objects,Remaining energyQ3Penetrating object。thereupon，According to the law of conservation of energy [292-11]Shizhong Q1/Q、Q2/Q、Q3/QTheyre called this
2015-04-14 Reading quantity 2804
introduction：qiti baohu dianhuhan Gas shielded arc welding gas shielded arc welding Using arc as heat source、Welding method using gas shielding molten pool。The main function of the gas is to protect the molten metal from oxygen in the air、nitrogen、The effects of harmful elements such as hydrogen and water，But it also has an effect on arc stability、The droplet transition form and the activity of the molten pool have some influence。therefore，The use of different gases will produce different metallurgical reactions and process effects。The main feature of gas shielded arc welding is visible arc,Small weld pool,Easy to substantiate
2015-04-14 Reading quantity 2802
introduction：one、Some need to pay attention to the norm Nothing can be accomplished without rules。UseUGThere also needs to be certain norms（It should of course be tailored to the needs）。The first is that file naming must be regular，For example, the main digital module can be named with the part number such asXXXXXX.prtOther documents should be prefixed or suffixed, such as those used to provide drawings-dwg，The modified modulus must also be prefixed or suffixed, as added-a。If the master model leaves the original department and goes to another department，A prefix or suffix should also be added if the process department can be added-prc。Any violation of the named file should be documented for individual users，
2015-04-14 Reading quantity 2791
introduction：The output shaft of cycloidal pinion reducer cannot be subjected to large axial and radial forces. Other measures must be taken when there are large axial and radial forces。Cycloidal pinwheel reducer is a novel reducer which adopts the principle of planetary transmission with small tooth difference，Can be widely used in oil、Chemical engineering、spin、pharmacy、food、printing、hoisting、mine、metallurgy、unit、Power generation and other industries，As a driving or decelerating device，The operating temperature is positive or negative40The degree of，therefore，Cycloidal pin gear reducer is widely welcomed by users and is widely used in various industries and fields Instructions： 1.Cycloidal pinwheel reducers are allowed to be used in continuous working situations
2015-04-14 Reading quantity 2792
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