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introduction：Principles of injection mold design In the design of injection mold,In general, the following principles should be followed: 1. Choose a reasonable mold structure.Reasonable mold structure is one of the main conditions to obtain the correct size of plastic parts. 2. Side holes and side depressions of plastic parts,Mosaic core-pulling mechanism should be considered. 3. The push-rod ejector mechanism of the readers forum mold,To be launched quickly and reliably when in use. 4. The mold designed,After the parts are formed,The removal of the runner gate should be easy.In the design, try to use a latent gate or a point gate that can automatically fall off. 5. Parts molded by injection molding,Rough surface
2015-02-18 Reading quantity 2795
introduction： The shape complexity coefficient of die forging parts is divided into four stages as shown in the table Level code coefficient shape complexityⅠⅡⅢⅣS1S2S3S40.63～1.00.32～0.630.16～0.32≤0.16Simple is generally more complex than complex
2015-02-18 Reading quantity 2871
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。]Apply the following protection methods：Mineral oil based rust inhibitor，Dry phase corrosion inhibitionVCIPaper packaging，Long-term storage for ocean transportation。TIMKENImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings are
2015-02-18 Reading quantity 1526
introduction： The maintenance and maintenance of laboratory instruments is an important part of laboratory management，Do a good job of instrument maintenance and maintenance，It is related to the good rate of the instrument、The utilization rate and the opening rate of experimental teaching，It matters to the success rate of the experiment。therefore，As an experiment teacher should know the general knowledge of teaching instrument maintenance and maintenance，Master the basic skills of maintenance and maintenance。 Once the instrument absorbs dust、dirt，Not only affect the performance of the instrument，Shorten service life，It directly affects the experimental effect，It also affected the aesthetics and the physical and mental health of the participants。The instrument will be stained during use or storage
2015-02-18 Reading quantity 2881
introduction： Generated air source、A material handling machine composed of a bearing platform and several air cushion units，Air cushion。The air cushion uses the air cushion unit to lift heavy objects and uses the flowing air layer between the air cushion unit and the ground to reduce friction resistance for transport。It is mainly used for carrying heavy objects over short distances（figure1 [Air cushion handling device to carry heavy objects]），For example, transporting large transformers、Heavy equipment，It can also be used for hull docking、Aircraft assembly and other situations requiring accurate positioning。An air cushion can also be used to push a mobile machining platform with a large workpiece fixed to the machining position of the machine tool，To improve the utilization rate of machine tools。Air cushion can also be used for large radar and mobile dance
2015-02-18 Reading quantity 2804
introduction： What is calledSKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”；SKFThe group is headquartered in Gothenburg, Sweden，Is a leader in bearing technology and manufacturing。SKFBearings can be divided into sliding according to different specific structures and similarities and differences in working propertiesSKFBearing and rollingSKFbearing]The condition of a burn injury is:SKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fab
2015-02-18 Reading quantity 1439
introduction：1.No backlash、High rigidityHIWINBall screwhiwinBall screw The ball screw can be prepressed,The axial clearance can be negative due to the prepressure,Thus, higher rigidity is obtained。2.Can achieve high speed transmission ball screw due to movement effect
2015-02-18 Reading quantity 68142
introduction： Work material group Machining characteristic group Country and standard Germany China Britain France Italy Belgium rick
2015-02-18 Reading quantity 2854
introduction：1.Compact mechanical structure、Light size、Minor； 2.Good heat exchange performance，Radiate quickly； Precision reducer 3.Easy installation、Flexible and agile、Superior performance、Easy maintenance； 4.High transmission speed ratio、High torque、High overload capacity； 5.Run smoothly，Low noise，durable； 6.Strong applicability、High safety and reliability。This product has been widely used in various industries production process equipment mechanical deceleration device，Well received by users、Is the current modern industrial equipment to achieve large torque、High speed ratio low noise、High stability mechanical deceleration drive control device
2015-02-18 Reading quantity 2798
introduction：1.General flat products should not be in the middle of the glue﹐Prevent bending。 2.One is still the same situationSTPinRPDirectly below。 3.When the mold base is large﹐STPThe interval of150--200mm。 4.The screw spacing between the upper and lower ejector plates of the lock is150--200mm。 5.When there is a thimble under the slide or the diagonal tip is broken﹐The upper and lower ejector plates shall be equipped with a forced return mechanism。 6.The drawing Angle of the finished product is based on the reduction of adhesive。 7.Waterway design time﹐Try not to use water pipe directly into the mold﹐Instead, use the mold water inlet pipe"O"RINGConnecting die kernel。 8.
2015-02-18 Reading quantity 2781
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