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introduction：one、Basic requirement （one）Provincial vocational skills appraisal guidance center according to the actual situation in the region，According to the characteristics of each unified examination occupation，Unified arrangement of time to organize implementation。 （two）Comprehensive review can be carried out in a variety of ways。Take paper writing、Candidates for oral or written defense，It shall be arranged by the provincial vocational skills appraisal guidance center，Submit my thesis and related materials。The provincial vocational skills appraisal guidance center organizes the comprehensive review committee to evaluate the content of the thesis before the defense，And according to the number of candidates to determine the defense schedule。 （three）Take other means to advance
2015-01-23 Reading quantity 2892
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。]Its a precision part.，Its use must also be carried out with corresponding care。No matter how high performance you useTIMKENbearing，If used improperly，You dont get the high performance you expect。The use of bearings should be noted as follows。 one、Keep bearings and their surroundings clean namely
2015-01-23 Reading quantity 1452
introduction：TIMKENbearing[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。]The rear axle drives an important part of the wheel movement。 TIMKENMain compounds in bearing operation，Can withstand bending and torque，At the same time absorb some of the impact load。Axle integral carbon alloy quenched steel and hardening after induction heating is commonly used in quenching，The depth of hardening layer is4
2015-01-23 Reading quantity 1463
introduction： We can use or draw a project drawing format file（It can also be a template,In the original，We still translate to format files），And apply it to the drawing file。Format is a custom layer of the drawing file，The format file contains the following contents：Title bar、border、table、It can even include the companys logo。To create a format file，Should beformatIn... mode，And need pro/detailmodule，We can choose the right drawing size（Standard drawing or custom size），To create a drawing format file，We should be sketchingSk
2015-01-23 Reading quantity 2888
introduction：SolidWorks2001The method of drawing and controlling spline curves<In the shape design of industrial products，In order to achieve good visual effects of the product，Spline curves are often used as sketches to build features。This article will give a preliminary introduction inSolidWorks2001 The method of drawing and controlling spline curves。 1． The drawing of spline curves A spline curve is formed by a smooth transition of a series of points，These points are called spline value points。SolidWorks2001 furnish
2015-01-23 Reading quantity 2911
introduction： Tap type and size according to the figure1Sum table1Regulation of...。 table1 Tap size(mm) designation Number of teeth (every25.4mm) Screw pitch P L l
2015-01-23 Reading quantity 2928
introduction：1、summarize A gas compressor is a power device that converts mechanical energy into gas pressure energy，Often used in pneumatic tools to provide gas power，In petrochemical、Drilling and production、Pressure oxygen is also commonly used in metallurgy and other industries、hydrogen、ammonia、Natural gas、Coke oven gas、Inert gas and other media。 Compressors can be divided into low pressure compressors according to different exhaust pressure—Exhaust pressure less than1.0MPa；Medium pressure compressor—Exhaust pressure1.0-10MPa；High pressure compressor—Exhaust pressure10-100MPa；Ultra-high pressure compressor—Exhaust pressure greater than100MPaAnd so on。The low pressure compressor is a single stage
2015-01-23 Reading quantity 2904
introduction：measureTIMKENbearing[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。]The outer ring value is the clearance when the roller is sagging。First guaranteeTIMKENThe right attitude of the bearing rotates the outer ring left and right1/2-1circle，2The position where any roller in a column is directly below each other。Use a gauge to measure the clearance，Measuring position according to bearing
2015-01-23 Reading quantity 1466
introduction：First build a new product head green，And according to the first line of this column set as working head green。Next, create a new assembly drawing，Suggested nameAssembly.asm,This usually puts the assembly drawing first when the file is opened(By default, files are arranged alphabetically),To open the assembly drawing,SelectFileopen，Press the middle button again。 Then create a new one in the assemblySkeleton，commandcomponent/create/skeletonmod
2015-01-23 Reading quantity 2917
introduction： 1. This instrument is“colorimeter”still“Spectrophotometric color meter”： The accuracy of the color difference meter is relatively low，The accuracy of the spectrophotometer is higher。The two methods of color measurement are different，A spectrophotometer can measure every color“Reflectance curve”，The color difference meter cannot。The spectrophotometer has a variety of light sources，And theres only one color difference meter。 2. “Spectrophotometric color meter”Be subdivided into“0/45The degree of”and“d/8Degree integrating sphere”Two kinds of measurement-Observation mode： “0/45The degree of”Can only be used to measure smooth surfaces，
2015-01-23 Reading quantity 2887
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