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introduction：Nc machine tool programming one.Numerical control machine tool programming method There are three kinds of programming methods for CNC machine tools：Hand programming、Automatic programming sumCAD/CAM 。 Manual programming Manual part drawing analysis、Process treatment、Numerical calculation、Write program listings up to program input and validation。Suitable for point machining or parts with less complex geometry，however，Very time consuming，And prepare complex parts，error-prone。 Automatic programming Use a computer or programming machine，Complete the process of part programming，For complexity
2015-01-31 Reading quantity 2801
introduction：Available acid、The corrosive dissolution of the workpiece material by an aqueous solution of alkali or salt to obtain the desired shape、Special processing of workpiece size or surface state，English abbreviation CHM。The composition of the etch used in chemical processing depends on the nature of the material being processed，The commonly used etch solution is sulfuric acid、Phosphoric acid、Aqueous solution of nitric acid and ferric chloride，For aluminum and its alloys, sodium hydroxide solution is used。Chemical processing is mainly divided into chemical milling、Photochemical processing and chemical surface treatment3means。 Chemical processing was used earlier，14By the end of the century, chemical etching had been used to etch warrior armor and swords、The pattern on the surface of swords and other weapons
2015-01-31 Reading quantity 2800
introduction： InstallKOYOBearing method，Factor 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。]cooperate、Conditions、Structurally dependent，normal，Because of the axis rotation，So the inner ring needs an interference fit。Cylindrical bore bearing，Multi-purpose press into，Or use the hot charging method。Cone-hole occasions，Directly mounted on taper shaft，or
2015-01-31 Reading quantity 1448
introduction：Precautions for use 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。]Precision parts，Therefore, it is required to be cautious when using，Both the use of high-performance imported bearings[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing
2015-01-31 Reading quantity 1549
introduction：Brittle inclusions can be reduced to bearings[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。]Fatigue life and mechanical properties of steel，It affects the quality of the steel。Microscopic findings of bearing steelGCr15The more common is the large levelDThe inclusions are composed ofO-Al-Ca-S、O-Al-Mg-Ca-（S）andTi-N-CrWadai
2015-01-31 Reading quantity 1483
introduction：INAThrust ball 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。]Whether the installation is correct，Affect the accuracy、Life span、property。therefore，Design and assembly department forINAThe installation of thrust ball bearing should be fully studied。It is expected to be installed according to operating standards。The operating standard items are usually as follows： （1）Check the associated components
2015-01-31 Reading quantity 1471
introduction：FAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]The cage fracture is an accidental abnormal failure mode，Lets analyze the reasons for the fracture of plastic bearing cages from the following five aspects。 1、FAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]Poor lubrication problem：The plastic bearing runs in an oil-poor state，Easy to form adhesive wear，Deface the work
2015-01-31 Reading quantity 1536
introduction：Consumers requirements for food are generally safe to eat、Property stability、Without additives。Heat sterilization is mainly used in traditional food processing，This leads to the destruction of nutrients，hyperchromia，Loss of volatile components。Cold sterilization（Physical sterilization）It is a new kind of technology in our time，Physical sterilization conditions are easy to control，The external environment has less influence，Because the temperature of the food does not rise or rise very low during the sterilization process，That is, it is conducive to maintaining the physiological activity of food functional ingredients，It also helps to maintain the color、sweet、Taste and nutrients，Therefore, the design and manufacture of packaging and food machinery using cold sterilization technology is very necessary。 Ultra
2015-01-31 Reading quantity 2816
introduction：The breakfast cereal line can produce corn beans、Cereal rings and nachos products，Crisp taste、Rich rice flavor，It can be eaten dry or soaked in milk，nutrient-rich，Easy to eat，It has become a common breakfast food in Europe, America and Southeast Asia。The product of the breakfast corn chip line I developed，Compared with similar foreign products，Has reached the same level。With the production of domestic equipment，Breakfast cereals will spread to the dinner table of the average family。 Corn chips process flow bologna——→Extrusion granulation——→Cooling transport——→flaking——→bake——→package Flour mixer
2015-01-31 Reading quantity 2854
introduction：one、Instrument range MJX-150Mold incubators are suitable for environmental protection、medicine、Chemical engineering、Agriculture and other fields，Is scientific research、Special equipment for testing various biological cultures in production。 two、Instrument structure characteristics （1）、Refrigeration system：By compressor、Condenser and other refrigeration components。 （2）、Heating system：Heat the tube into a racket shape，Long service life、High thermal effect。 （3）、Humidification system：Ultrasonic humidifier is used。 （4）、The air flow inside the box is formed by forced convection by a fan。 （5）、The temperature is controlled by microcomputer、Humidity control，Precise control
2015-01-31 Reading quantity 2835
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