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introduction：dianhuohua xianqiege jiagong Electrical discharge wire cutting electrical discharge wire-cutting An axially moving wire is used as a tool electrode，Electrical discharge machining (EDM) in which the workpiece is moved in a trajectory to the desired shape and size，English abbreviationEDWC。 Brief history1960years，The Soviet Union was the first to develop linear cutting machine tools。Chinese Yu1961A similar machine tool was developed。The early wire-cut machine tools used electrical mold control
2015-01-04 Reading quantity 2806
introduction：1. The basic composition of the mold （1）Front mold（Master die）（Fixed die）﹑（2）metatype（Male die）（Moving die）﹑（3）retainer（insert）﹑（4）row-bit（Sliding block）、（5）Pitched roof﹑（6）thimble﹑（7）gate（Water inlet） 2. The influence of mold product shape on product Wall thickness﹐Geometric shape﹐It will affect the shrinkage rate of forming﹐Demoulding slope size 3. Effect of water inlet on product shrinkage The size of the inlet is large, and the shrinkage rate is small﹐Small size means large shrinkage﹐The shrinkage rate is higher when the direction of flow is parallel﹐Vertical direction is closed
2015-01-04 Reading quantity 2916
introduction：Rolling 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。]Substitute for，It is generally first selected from a diameter series lower than the diameter series of the original bearing，And the outer diameter of the selected substitute bearing should be the same as that of the original bearing，The inner diameter is larger than the original bearing。This is mainly to consider：（1）Easy processing，Save material；（2
2015-01-04 Reading quantity 1567
introduction：Affected inlet 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。]Service life can have many factors that may cause factors and internal friction sound has been further explained，Use。The main factor used for adjustment is installation，Use and maintenance，Maintenance and repair，And meet the technical requirements。Imported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskshaft
2015-01-04 Reading quantity 1469
introduction：Lubricating oil is generally made of base oil and various additives through a certain process。Internal combustion engines operate under harsh conditions，Internal combustion engine oil is often at high temperatures、Large temperature variation，Easily mixed fuel、Lubrication under conditions of incomplete combustion mixture and other impurities。This requires higher performance of internal combustion engine oil：Such as good wear resistance、Excellent oxidation stability，It is not easy to deteriorate under high temperature conditions，Not easy to gelate、Carbon deposits and other substances；To have good viscosity-temperature properties，So that the oil can maintain a relatively stable viscosity under the condition of large temperature difference。In addition, the internal combustion engine oil also requires a good clean dispersion、Resistance to
2015-01-04 Reading quantity 2899
introduction：rollIKOBearings are widely used by users，Scroll in useIKOBearing must pay attention to maintenance，If rollIKOBearing damaged，How do we deal with it？What about first?，Lets start with what is rollingIKObearing[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。]？rollIKOHow to use bearings correctly？below
2015-01-04 Reading quantity 1569
introduction：This paper introduces the structure of material handling system using pneumatic elements、Pneumatic system and itsPLCControl system。The material handling mode has the multi-purpose function that can be grabbed and sucked；The solenoid directional valve of the pneumatic system adopts the manifold manifold，Reduced space usage；PLCThe control has a single step、Automatic and other ways of working。 The pneumatic transmission has an air source for easy use、Do not pollute the environment、Be nimble and quick、Work safe and reliable、It is easy to operate and maintain and suitable for working in harsh environment，Thus in stamping processing、Injection molding, die casting and other toxic or high temperature environment，On the machine tool、laying-off，Meter and
2015-01-04 Reading quantity 2895
introduction： Generally admissibleFAGImported 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 external temperature of the seat is inferred。However, it is more accurate to measure the temperature of the bearing outer ring directly by using the oil hole。Bearing temperature，It gradually rises from the start of operation，usual1~2The temperature stabilized after hours。If bearings are improperly installed，The temperature will rise sharply，Abnormally high temperature。Causes include excess lubricant、Bearing clearance is too small、Poor installation、Seal friction
2015-01-04 Reading quantity 1555
introduction：Abstract：Linear motor machining at high speed and ultra-high speed is introduced、The application of ultra-precision machining and special-shaped section machining。 1 introduction With the rapid development of electronic technology，The proliferation of high-speed, multifunctional or specialized microprocessors and signal processors（Such asDSP），The application of linear motor in the field of machine tools has ushered in its climax。from1996Chicago Machine Tool ShowIMTS`96，Japan #18International Machine Tool Exhibition，to1999Paris InternationalEMOExpo and a series of international influential exhibitions，ColumbianIngerell m
2015-01-04 Reading quantity 1557
introduction：Plastic in the molding process，The flow behavior and the microstructure after molding will be affected by the rheological properties of plastics。The rheological properties of some plastics are listed below： Shear viscosity(Shear viscosity)：It reflects the ability of plastic melt to obstruct the flow during shear flow。 Yield stress(Yield stress)：If the plastic melt is a Binha fluid，Only after the stress exceeds a certain limit，Talent flow。This stress limit is the yield stress。 Tensile viscosity(Extensional viscosity)：
2015-01-04 Reading quantity 2805
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