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introduction：Vacuum paper feed technology refers to the method of using vacuum suction to absorb paper instead of the original paper press wheel。The original paper comes out of the feed roller to the front gauge，The paper is transported forward by the friction force of the paper conveyor belt on the cardboard and the paper press wheel。This structure has two disadvantages：First, the pressure of the paper wheel can not be adjusted so evenly，And its all about feeling，Everyone regulates stress differently，This is easy to cause paper feed deviation，It affects the positioning of the paper in the front gauge；The second is because the paper is moved by the friction of the paper conveyor belt and the paper press wheel，It is impossible to guarantee perfect synchronization between them，Be bound to have
2015-03-14 Reading quantity 3000
introduction：At present, there are tens of thousands of fastener enterprises in China，But the annual output value of more than 100 million yuan only60A number of，Compared with overseas enterprises，Our strength is obviously much weaker。So we have to get out of the old way of underpricing，Devaluing goods
2015-03-14 Reading quantity 78106
introduction：Maximum productivity：80box/when 1、Comply with general operating procedures for moulding machines and core machines。 2、Drawing time，The ejector rod must be smooth and synchronized，Or else，Notify maintenance personnel to repair。 3、Pressure real time，The rotating frame of the sanding beam should rotate smoothly，Dont overdo it，impact。
2015-03-14 Reading quantity 2839
introduction：A process performance test to determine how easily a material can achieve plastic deformation during forging，Also known as malleability test。 Malleability of materials and plasticity of materials、Deformation resistance is related to friction characteristics and other factors，These factors are in turn related to the speed of the test、The temperature of the test is relevant。Commonly used test methods are tensile test、Torsion test、Top forging test and wedge rod rolling test。 ①Tensile test：The elongation of cylindrical specimens at different temperatures was measured(％)、Shrinkage of section[4](％)And tensile strength[6]b(See tensile test)。 ②Torsion test：Determination of cylindrical specimens at different temperatures when twisted
2015-03-14 Reading quantity 2825
introduction： The main causes of rust are as follows： 1、Some enterprises are producing 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。]In the process, the bearing parts in the processing process and the finished bearing after assembly are not strictly treated according to the requirements of the cleaning anti-rust regulations and the oil seal anti-rust packaging。As if the ring is in rotation
2015-03-14 Reading quantity 1552
introduction：This century80New technology developed in the middle of the decade，It doesnt need any molds、Free machining，On the basis ofCADProvide 3D data，The production method of layered scanning is adopted，Quickly create the physical role models you need。It can be used for design evaluation、Product development、mould-making，In shortening the production cycle、Reduce production costs、There are significant benefits in terms of quality assurance。
2015-03-14 Reading quantity 2790
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。]Online monitoring technology：ferrography（Bearing monitoring）： Analytical iron spectrometer、Direct reading ferrograph and on-line ferrograph。Ferrospectrometers are generally divided into these three categories。 A high gradient magnetic field is used to make the solid contained in the oil sample flowing through the magnetic field
2015-03-14 Reading quantity 1562
introduction：one、Steel plates（Including strip）The classification of： 1、Classification by thickness：（1）lamina（2）Middle plate（3）Thick plate（4）Extra-thick plate 2、Classified by production method：（1）Hot rolled steel plate（2）Cold-rolled steel plate 3、Classified by surface features：（1）Galvanized plate（Hot galvanized sheet、Electrogalvanized sheet）（2）tinplate（3）Composite steel plate（4）Color coated steel plate 4、Classification by use：（1）Bridge steel plate（2）Boiler plate（3）Shipbuilding steel plate（4）Armor plate（5）Automobile steel plate（6）Roofing steel plate（7）Structural steel plate（8）Electrical steel plate（Silicon steel sheet）（9）Spring plate
2015-03-14 Reading quantity 2793
introduction： Change the offset profile size。 Click“view”(View)>“View manager”(View Manager)。“View manager”(View Manager) Dialog box opens。 Click“section”(Xsec)。 in“name”(Names) Under the，Click the profile you want to modify。 Click“EDITOR”(Edit)>“redefine”(Redefine)。appear“Cross section modification”(XSEC M
2015-03-14 Reading quantity 2791
introduction： Use high pressure﹑Vacuum pump with high speed and directional flow of oil vapor jet pumping。The ultimate pressure of this pump is about10-2Mr﹐The working pressure range is generally1.0～10-1Mr﹐Pumping rates range from a few hundred to tens of thousands of liters per second﹐The maximum back pressure is several hundred pa﹐It is one of the main equipment for obtaining medium vacuum。Oil diffusion jet pump is widely used in vacuum smelting﹑Space simulation test﹑Vacuum coating and some vacuum systems that are not sensitive to oil contamination。In a vacuum system﹐It can be used as a main pump﹐It can also be connected in series between oil diffusion pump and mechanical vacuum pump﹐Used to increase the pumping capacity of the pumping system in the intermediate pressure range
2015-03-14 Reading quantity 2897
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