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introduction： For tensile parts, People are used to pre-cut or blanking the sheet to a certain shape,restretch。For tension parts with irregular flanges, After stretching, the cutting process must be added to ensure the shape of the workpiece, If the workpiece has flatness requirements,We need to add more shaping,This increases the number of processes。Positioning error caused by the number of processes,The quality of the product may be affected, And this design method can not avoid the hand into the dangerous area of the die,Its not safe to go there.。 1 Process analysis 2 Mold structure and working process
2015-01-04 Reading quantity 2892
introduction：IKOBearings are precision parts，Therefore, it requires considerable caution when using，The change is the use of high-performanceIKObearing，If used improperly，Nor can it achieve the expected performance effect，And easy to make 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。]breakdown。therefore，The use of forklift bearing should pay attention to the following matters： one
2015-01-04 Reading quantity 1563
introduction：IKOWhether the bearings are installed correctly，Affect the accuracy、Life span、property。therefore，Design and assembly department forIKOThe installation of bearings should be fully studied。It is expected to be installed according to operating standards。The operating standard items are usually as follows： （1）cleanseIKOBearing andIKObearing[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。
2015-01-04 Reading quantity 1538
introduction： The first is to pay attention to the measurement of lubricating oil。When the electromagnetic clutch is working，Its not just the power supply，It also relies on lubricating oil。When theres more oil，The transport of the clutch will be somewhat disturbed，And when there is less lubricating oil in the clutch，The movement of the clutch will also be disturbed。So always check the measurement of lubricating oil，Maintain equality。 The second is to pay attention to the wear of the clutch。Because the working principle of the electromagnetic clutch is the combination of power，Cut apart when the power is off。So a long time of combination and separation，There will be some wear on the clutch，
2015-01-04 Reading quantity 2796
introduction：In a modern enterprise，The use of compressed air is becoming more and more common，There are two common drying devices: adsorption drying device and frozen drying machine。 The effective gas supply of the refrigerated dryer can be reached100％，however，Due to the constraints of the working principle，The minimum gas dew point of the refrigerated dryer can only be reached3℃（Pressure dew point）around，And it is greatly affected by the intake air temperature，Every increase in intake temperature5℃，Cooling efficiency will decrease30％，The gas supply dew point will increase significantly。meanwhile，Refrigeration dryers must consume a certain amount of electricity and cooling water。 Adsorption drying devices are mainly：Regenerative dry without heat
2015-01-04 Reading quantity 2888
introduction： 1 GB/T 2-1985 fastener The end of the part with external thread Fasteners--Ends of parts with external thread 2 GB/T 8-1988 Square head bolt Clevel Square head bolts--Product grade C 3 GB/T 10-1988 Countersunk head square neck bolt Flat countersunk square neck bolts 4 GB
2015-01-04 Reading quantity 2876
introduction： one、Significance of experimental design Experimental design is a part of research methods and procedures in a scientific research plan。In medical research work，Regardless of laboratory study、Clinical efficacy observation or field investigation，In formulating the research plan，Should be based on the purpose of the experiment and regulations，Combined with the requirements of statistics，For the whole process of the experiment，Carefully consider the design of the experiment。A thorough and perfect experimental design，Can arrange various experimental factors reasonably，Strictly control experimental error，Thus using less manpower、Material resources and time，Get the most out of abundance and reliability
2015-01-04 Reading quantity 2808
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。]The feature of... Rolling bearings compared with plain bearings,Have the following advantages: 1．The friction coefficient of rolling bearings is smaller than that of plain bearings,High transmission efficiency。The friction coefficient of the general plain bearing is0.08-0.12,The friction coefficient of rolling bearings is only0.
2015-01-04 Reading quantity 1419
introduction：In this steelmaking control system project，Our design is made by Siemens of GermanyPLC、communication、Industrial control software and transmission control products andKYLAND（Toto Telecom）Industrial optical communication products are composed of high quality、High-performance integrated control system，Complete the entire project process and drag control tasks。among，Five sets were adoptedS7-400typePLC、Fifteen setsS7-300typePLC、Nearly 100 setsMASTERDRIVERSeries drive products（Power ranges from severalKWInto the hundredsKW）。 ----The upper monitoring system is equipped with industrial control software by industrial control computer
2015-01-04 Reading quantity 2904
introduction：With the continuous improvement of injection molding processing accuracy requirements，In addition to the correct selection of materials and modification of the selected plastic，How to choose the correct molding process conditions，The relationship between the comprehensive shrinkage rate of the product and the parameters of the processing technology is analyzed reasonably，And the shrinkage rate of various reasons and processing factors on its influence is a very important subject。 1 Experimental part 1.1 Experimental material PP：1390type，Injection grade copolymerizationPP，Beijing Yanshan Petrochemical Company。 1.2 equipment Injection machine：SZ-100／160NB，Ningbo plastic machinery factory； mould：Steel casting
2015-01-04 Reading quantity 2888
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