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introduction： ⒈GCr15Properties of steel GCr15Steel is inT10AThe steel base is mainly addedCrMade from the elements。GCr15Steel characteristics are as follows： ⑴、GCr15Steel additionCrThe element is mainly used to improve the hardenability of steel，At the same time soluble in the matrix to strengthen the matrix structure。In addition，CrDissolution of elementFe3CMesomorphic recombination（Fe、Cr）3CCan increase its hardness，Increase the hardness and wear resistance of steel。 ⑵、Due to the addition of a single weak carbide forming element in steelCr，GCr15Mechanical properties of steel、Abrasion resistance、Hardenability and quenching deformation is not as goodCrWM
2015-01-09 Reading quantity 1475
introduction：eighty-one：What metal material is twist drill made of？ a：Its made of high speed steel。 eighty-two：What are the two kinds of machining allowance？ a：There are two kinds of process allowance and total allowance。 eighty-three：Usually the electrical control circuit consists of which parts？ a：Driven circuit，Control circuit，Signal circuit and other lighting circuit composition。 eighty-four：What is a hydraulic circuit？ a：A typical circuit composed of hydraulic components and capable of performing a specific function。 eighty-five：Parts of the machining accuracy of which parts？ a：Dimensional accuracy，Shape accuracy，Position accuracy。
2015-01-09 Reading quantity 2841
introduction：Since theHSKHollow short taper shank technology since the advent，It is widely used in countries all over the world。It is understood，Some users in Europe and North America，In useHSKWere having some problems with the handle。The main reasons for these problems are，Their concern for manufacturingHSKImproper selection of material for the handle。 DINThe standard only specifiesHSKThe geometry of the handle，It does not specify the materials to be used。therefore，Almost all the tool suppliers are producedHSKhilt，Its all based on tradition7：24Taper shank to produce。HSKHollow with short taper shank“hollow”That in itself suggests a potential problem：That is, the axial section is very
2015-01-09 Reading quantity 3127
introduction：Precautions before installation SKFbearing[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]Due toSKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”
2015-01-09 Reading quantity 1603
introduction： rightIKORegular maintenance of bearing equipment、Rolling mill bearings that are removed during operation and replacement of peripheral parts[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。]When the search is suspended，The requirements in turn determine whether the secondary bearing parts can be used again and record the use of better than worse。Im gonna do my best to track down and document whats been taken downIKOBearing sum
2015-01-09 Reading quantity 1582
introduction：Because the mechanical polishing is mainly completed by hand，Therefore, polishing technology is still the main reason for affecting the quality of polishing。besides，Also with mold material、The condition of the surface before polishing、Heat treatment process and so on。High quality steel is a prerequisite for good polishing quality，If the surface hardness of the steel is uneven or the characteristics are different，Often produces polishing difficulties。Various inclusions and pores in steel are not conducive to polishing。 Influence of different hardness on polishing process Increasing hardness makes grinding more difficult，But the roughness decreases after polishing。Due to the increase in hardness，To achieve lower roughness required polishing time accordingly
2015-01-09 Reading quantity 1532
introduction： Abstract：The soft starting mode of three-phase asynchronous motor is introduced，It is emphasized that the frequency converter should be used as a new kind of soft starting device。 keyword：Three-phase asynchronous motor；Soft start；Frequency changer 1introduction Three-phase asynchronous motor has a wide range of applications。The start of the three-phase asynchronous motor，It will cause strong interference to the power grid，Heavy-duty starting, especially in industrial fields，Sometimes it may pose a serious threat to the device。Therefore, the soft start of three-phase asynchronous motor has been paid more and more attention by relevant technicians。 For high-power asynchronous motors，Soft starting is better than hard starting（namely
2015-01-09 Reading quantity 2894
introduction：HBa-1the s hard The degree of Tabacol (Barcol) hardness ( Short for Babbitt hardness ) First by the United States Barber-Colman Proposed by the company，It is a kind of hardness gate widely used in modern world class，The specimen is pressed with a specific indenter under the pressure of a standard spring，The hardness of the specimen is characterized by the depth of the indentation。Bacor hardness tester（A Babbitt hardness tester）Act as Specializes in measuring FRP products、Reinforced or unreinforced hard plastics、Aluminium and aluminium alloys、Orichalcum、Special testing tool for hardness of soft metals such as copper （ particularly Suitable for FRP products ），Have been
2015-01-09 Reading quantity 2813
introduction：CAD (Computer Aided Design，For shortCAD)Computer aided design CAM (Computer Aided Manufacture)Computer aided manufacturing CAPP Computer Aided Process Planning,For shortCAPP。Computer aided process planning CAE (Computer Aided Engineering,For shortCAE) Computer aided engineering analysis
2015-01-09 Reading quantity 2892
introduction：(1) 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。]Raceway sound and its control method The sound of the raceway is whenTIMKENImported 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，fag
2015-01-09 Reading quantity 1562
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