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introduction： Cast nylon-6It has a high strength、Abrasion resistance、Abrasion resistance and resilience。The pouring reaction is mostly carried out at atmospheric pressure or very low pressure，So the nylon produced by casting has a very obvious advantage over the nylon produced by extrusion or molding。Like jade extrusion nylon compared，Cast nylon has higher crystallinity and molecular weight，It has good dimensional stability、Easy machinability、High modulus and thermal deformation temperature。 Because the size and shape of cast nylon are not limited，So it has greater flexibility。Simple shapes of cast nylon can be produced with low cost tools，The production cycle is also short；complex
2015-01-05 Reading quantity 2796
introduction：1 before said In recent years,Some provinces and cities in China have set up various forms of fire trace material evidence technical identification stations,Some have already started work,Such as Beijing、Xinjiang、Hunan (Province)、Guangxi、Jinan and Dalian, etc;Some are preparing.,Such as Shenyang、Szechuan。In short,Many places are interested in doing this,In our work, we often help and guide fire colleagues across the country to build stations and daily business consulting,According to actual need,This paper summarizes and sums up the technical identification procedure of electrical fire trace material evidence,It is hoped that more fire control colleagues can understand and master the requirements of technical identification of electrical fire trace material evidence、Radius
2015-01-05 Reading quantity 2814
introduction： Clutch for cars equipped with manual transmissions，The importance is self-evident，First of all, it is the most commonly used component but also the most skilled to operate。I often see some wrong clutch use methods when riding in other peoples cars，So write down the following correct way to facilitate you to better drive the car clutch in the vehicle driving process only at the start，Use when shifting and stopping，It should not be used in any other circumstances。 Proper use of the clutch when starting：First step on the clutch and put it in the proper gear(Normal first gear，Snow ramp second gear)Then lift to the clutch position
2015-01-05 Reading quantity 2895
introduction：(1).Theres an alarm bell ringing． (2).Water wheel mechanical failure light plate bright，Indicating 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。]Temperature The meter temperature rises，Signal relay operation。 (3).Thermometer dial（Expansion thermometer）The black needle overlaps or exceeds the yellow needle。 (4).Emitted bearing temperature
2015-01-05 Reading quantity 1552
introduction：one、Introduction to quotation system Product quotation refers to the price of the party according to its own market environment、Give birth to、manage、The price quoted to manage the current situation and other factors for the specified product and its special functional requirements。Product quotation is a complicated and important economic behavior。The high or low price of the product is conducive to the two sides of the quotation can sit face to face and determine the transaction price of the product after many discussions and finally reach an agreement，Sign a contract。Product quotation[1]，Especially the more complex product quotation，Such as mold product quotation，The coordination of people from many fields is required，Such as technology、FINANCE、shang
2015-01-05 Reading quantity 2885
introduction： With a milling cutter that spins at high speed(See woodworking tool)Grooving the wood﹑Woodworking machine for tenoning and forming surfaces。Woodworking milling machine is divided into vertical single-axis woodworking milling machine﹑Wood model milling machine and router3Kind of。 Vertical single-spindle woodworking milling machine(See picture Vertical single-spindle woodworking milling machine)The cutter is mounted on a vertical milling cutter shaft extending from a fixed table﹐Milling cutter shaft can be tilted and adjusted up and down。The workpiece is manually fed against the fixed work surface and guide plate﹐Form milling on the side can also be done using guide rollers and form milling jig﹐The workpiece can also be clamped
2015-01-05 Reading quantity 2798
introduction： According to the characteristics of mold processing，And the requirement of new technology of CNC machine tool，It is suggested to take some measures in the processing technology，In order to play the high precision of the machine、Rate characteristics，Ensure mold processing quality。 (1) Material to select，The blank material should be uniform，At present, some materials can achieve relatively small deformation after rough processing。The castings and forgings must undergo high temperature aging，Relieving internal stress，The deformation of the material after multi-process processing is small。 (2) Rational arrangement of processes，Refined parts blank。It is impossible to rely on one or two in the production process of the mold
2015-01-05 Reading quantity 2884
introduction： Pedal problem with forklift clutch The gap decreases gradually with the wear of the friction plate of the driven disk，If the gap is too small or even no gap，Separate 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。]Rapid wear due to prolonged contact with the separation lever、guide
2015-01-05 Reading quantity 2798
introduction：brand/Equivalent standardISO/Physical and mechanical properties(min):Bending strengthN/mm2hardnessHRA/use 1、YG3x/K01/1420;92.5/Suitable for cast iron.Non-ferrous metals and alloys.Quenched steel alloy steel small cutting section high speed finishing. 2、YG6/K20/1900;90.5/Suitable for cast iron.Non-ferrous metals and alloys.Non-metallic material medium to lower cutting speed semi-finishing and finishing
2015-01-05 Reading quantity 1552
introduction：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。]After the installation on the host is complete，Such as measuring the radial runout of the spindle，It can be found that the measured value of each turn has a certain change；When measuring continuously，It can be found that after a certain number of revolutions，This change is approximately repeated。The index to measure the degree of this change is the rotation accuracy of the cycle，The variation is approximately repeated by the number of revolutions required to represent the accuracy of the cycle rotation“quasi-periodic”，In quasi-period
2015-01-05 Reading quantity 1547
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