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introduction： The quality of heat treatment is indirectly related to the subsequent processing quality and ultimately affect the performance and life of the parts，At the same time, heat treatment is a large power consumption and purification of the machinery industry。In recent years，With the advancement of scientific techniques and their use in heat treatment，The development of heat treatment techniques is important in the following aspects： （1）Waste water formed by clean heat treatment consumption、Exhaust gas、Waste salt、dust、Noise and electromagnetic radiation will purify the environment。Deal with the environmental purification of heat treatment，Implement clean heat treatment（Or green heat treatment）It is the direction of developing heat treatment skills in prosperous countries
2015-04-13 Reading quantity 1439
introduction：Applicable model： 1、 Circular sawing machine：G624（8A66），G607，G67，G6010（8A67），cut（semi-automatic）67。 2、 Hacksawing machine：G72（872），G72-1，872-1 3、 Pipe cutter：9A151，914Б。 one、 Conscientiously implement《General operating rules for metal cutting machine tools》Relevant provisions。 two、 Carefully implement the following special requirements for sawing machines： （one） Circular sawing machine：Working crop time，The headboard must be retracted to the rear position，To prevent breakage of the saw blade。 （two）
2015-04-13 Reading quantity 2874
introduction：one.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。]Vibration standard for quality detection 1．National standard for vibration acceleration（colloquiallyZmark） The standard was developed earlier，To measure the vibration acceleration value of the bearing rotation，To determine the quality grade of the bearing，Fall intoZ1、Z2、Z3Three quality levels from low to high。Orders,
2015-04-13 Reading quantity 1435
introduction： Pressure measuring elastic components in pressure measuring instruments。Made of metal or non-metal material﹑Having a fixed perimeter but a movable center under force﹑A sheet with a shaped face is called a diaphragm。According to the shape of the different surface diaphragm can be divided into flat diaphragm﹑Corrugated diaphragm and spherical diaphragm。A diaphragm with a flat surface and no ripples is a flat diaphragm﹔A diaphragm with a concentric ring ripple on the profile surface is a corrugated diaphragm。The box body formed by sealing the outer edges of the two diaphragms is called the membrane box(See picture bellows )。Under pressure﹑Under axial force﹐diaphragm﹑The diaphragm can generate displacement。diaphragm﹑bellows
2015-04-13 Reading quantity 2804
introduction：Oil film 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。]It is a kind of radial plain bearing with lubricating oil as the lubricating medium，Heres how it works：In the rolling process，Due to rolling force，Force the roller journal to move，The center of the oil film bearing is eccentric to the center of the journal，Make the gap between the oil film bearing and the journal
2015-04-12 Reading quantity 1552
introduction： u General structural part demand：No special requirements for strength and heat resistance，Generally used in place of steel or other materials，Large batch，Higher productivity is required。Low cost，Sometimes there are certain requirements for appearance。 Apply：Electronic parts，Electric appliance(machine)shell，stationery，Daily necessities，plaything，appearance，fastener。 Materials：Low pressure polyethylene(HDPE)，polyvinyl(PYC)，Modified polystyrene(20A，204)，ABS，polypropylene(PP)。 u
2015-04-12 Reading quantity 2787
introduction： 1Rolling mill oil film 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。]Working principle Oil-film bearing is a kind of radial plain bearing with lubricating oil as the lubricating medium，Heres how it works：In the rolling process，Due to rolling force，Force the roller journal to move，The center of the oil film bearing is eccentric to the center of the journal，greasing
2015-04-12 Reading quantity 1445
introduction：1、Copper-iron electrode is used（Such asZ607）When welding，The iron and copper in the electrode metal are insoluble，It exists as a mechanical mixture，And its not mixed evenly。When in the electrodew(Fe)magnify30when，The plasticity of weld metal is greatly reduced，When welding the weld of a rigid joint，Easy to crack in the weld。Therefore, short arc welding should be adopted as far as possible，Reduce the swing of the electrode，Multi-layer welding and other technical measures are adopted to prevent the occurrence of welding cracks。 2、In cold welding of cast iron，To repair individual important casting defects，Pure nickel electrode or nickel-iron electrode is often used、Nickel copper electrode for repair welding，Such asZ308，
2015-04-12 Reading quantity 2899
introduction：Belt brake A brake that uses a flexible steel band to press the brake wheel to achieve braking(See picture Belt brake )。The flexible steel belt is filled with leather﹑Wood block or asbestos friction material﹐To increase the coefficient of friction and reduce the wear of the belt。The connection type of flexible steel belt and lever is simple belt type﹑Differential belt and combined belt3Kind of。Simple band brake﹕One end of the band is fixed to the lever fulcrumA Up.﹐The other end with the lever on itB Point connection。With the weight of the hammerG Under action in a tight brake state。When the current is on﹐The magnetic force of an electromagnetZ Lift the lever to release the brake。This type of brake wheel turns according to the picture
2015-04-12 Reading quantity 2813
introduction：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。]Inside diameter Before measuringFAGbearing[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。]Assemble and tighten according to specified torqueFAGbearing[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。]Lid shell
2015-04-12 Reading quantity 1470
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