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introduction：High density polyethylene（HDPE）Barrel temperature Feeding area 30～50℃（50℃） area1 160～250℃（200℃） area2 200～300℃（210℃） area3 220～300℃（230℃） area4 220～300℃（240℃） area5 220～300℃（240℃） nozzle 220～300℃（240℃）The temperature in parentheses is recommended as the base setting，Stroke utilization rate is35％and65％，The ratio of module flow length to wall thickness is50：1to100：1 Melt temperature 220～
2015-04-01 Reading quantity 2778
introduction： The crushing process of steel in cutting machinery，The surface will be affected by heat、Damaged by internal stress or other factors，Improper cutting parameters will affect the polishing effect。The surface after EDM is more difficult to grind than the surface after ordinary machining or heat treatment，Therefore, precision EDM trimming should be used before the end of EDM，Otherwise, a hardened thin layer will form on the surface。If the EDM fine repair rules are improperly selected，The depth of the heat affected layer is maximum0.4mm。The hardness of the hardened thin layer is higher than that of the substrate，Must be removed。So its better to add one
2015-04-01 Reading quantity 1525
introduction： 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 most important part is the bearing ring，Imported 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，fagbearing，Of good quality，Of course, the price is not cheap
2015-04-01 Reading quantity 1620
introduction： 1、Tightly rolled hood annealing Coiling annealing is annealed in a coiling state。The coil is heated by heat transfer from the convector and radiant heat through the inner cover，It takes a long time for the coil center to reach the specified temperature，however，There is no need for loose roll annealing as described later、Open as in continuous annealing，And the surface is not easy to scratch，Cheap investment and other advantages。 A blower in the chassis circulates the protective atmosphere，And a convector is inserted between the volumes，Its main function is to transfer heat to the coil，Let the protective gas flow between the convectors。The furnace body is connected with the control instrument，If the specified temperature can be selected，You can measure the coil temperature。
2015-04-01 Reading quantity 1532
introduction： Oil is supplied in the engine(lubricant)The system of。For directional 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。]Supply lubricating oil to the friction surface of the gear﹐It is used for cooling and lubrication﹐Prevent parts from rusting﹐And carry away impurities。 &nb
2015-04-01 Reading quantity 2786
introduction：Silicone rubber key curve a few small understanding 1 The silicone rubber key curve diagram is a curve reflecting the synchronous change of force and stroke in the process of pressing the twist。 2 Generally speaking，When the oblique wall thickness is constant，The greater the Angle of the inclined wall, the greater the key elasticity，The rebound is also greater，But the reaction was not obvious。 3 Greater travel，The smaller the rebound；The smaller the trip，The bigger the rebound。 4 The greater the hardness of the compound，The shorter the service life，Greater loss force。 Experience on how to modify the silicone key curve How to modify the curve The modification of the product curve is mainly carried out in two ways
2015-04-01 Reading quantity 2782
introduction： 1.First of all, the basisSKFbearing[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]Rolling sounds to identify and check We can use a sounder，In operationSKFbearing[SKFbearing:SKF
2015-03-31 Reading quantity 1536
introduction： Content summary：Computer technology、The development of network technology and information technology has created the technical conditions for the birth of the distributed network research center，This article combines our national condition，The important function of the distributed network research center is analyzed、Architecture and its application in agile manufacturing，It is hoped to make some beneficial exploration for the development of scientific research work in our country。 keyword：Research Center for Distributed networking，Agile manufacturing,CORBA introduction now，The world market is gradually taking shape，Modern manufacturing technology is becoming flexible、Agile and intelligent fast
2015-03-31 Reading quantity 2885
introduction：There is an increasing demand for light alloys in different industrial applications，For example, the importance of light alloys in the aerospace industry is also increasing，At the same time, high performance and high speed processing solutions are also relatively improved when processing structural components。therefore，In cutting tools，High chip removal speed is also required in rough processing，At the same time, the best surface finish can be achieved。This article will address both requirements，Explain the knife base respectively、Systematic development of blade shape and cemented carbide，The development objectives and experimental results are demonstrated。 introduce One of the most important and committed in the metalworking industry
2015-03-31 Reading quantity 2780
introduction：High-speed cutting refers to a cutting process that is much higher than the conventional cutting speed，For different cutting methods and different materials to be processed，High-speed cutting also defines a different range of cutting speeds。For milling aluminum、Magnesium alloy，Cutting speed greater than1000m／min；And for processing cast iron or steel，Cutting speed greater than305m／min。 People found an interesting phenomenon when studying high-speed machining；As the cutting speed increases，The cutting temperature increases accordingly，The unit cutting force also increases，And when the cutting speed increases to a certain value，If further increased，Instead, the cutting temperature and cutting force began to decrease。
2015-03-31 Reading quantity 2774
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