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introduction： First of all, according to the needs of enterprise products，The purpose of purchasing instruments is to ensure that the quality of the enterprises own products is controlled，Therefore, we should pay attention to the adaptability of the instrument to the enterprise product，Test as quickly as possible in front of the furnace，Incoming material inspection should be able to print test reports，The finished product inspection should take into account the authority of the instrument。 And a single product like steel、The professional requirements of steel wire rope and other production units for instruments can be appropriately reduced，And like cast copper alloy、Aluminium alloy、Stainless steel and other enterprises should pay special attention to the professionalism of the instrument，Generally speaking, professional instrument testing
2015-04-06 Reading quantity 2788
introduction：Here are a few steps to install the silver rail bracket，You can follow the steps when installing，Simple and fast！
2015-04-05 Reading quantity 24381
introduction： First of all，entranceTIMKENbearing[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。]A suitable puller should be used when disassemblingTIMKENBearing pull out inTIMKENBearing blockTIMKENBearing assembly hole dimensions、shape、In case of poor accuracy，TIMKE
2015-04-05 Reading quantity 1559
introduction：1Analysis of risk factors Peracetic acid is also called peracetic acid、Acetyl hydrogen peroxide，Its a colorless liquid，It is highly oxidizing，Has a strong pungent smell，corrosive，Soluble in water、Ethyl alcohol、Ethyl ether，The flash point is only41℃，So hot that110℃Strong explosion，Contact flame、Suffer from heat、rub、Vibration、Impact explosion。From Harbin City14Home peracetic acid production unit（Such as：Harbin chemical reagent factory、Harbin Tianlong Pharmaceutical, etc）All with glacial acetic acid、Concentrated sulfuric acid and hydrogen peroxide were used as main raw materials to produce peracetic acid。All of these substances are dangerous chemicals，It is highly oxidizing。Especially glacial acetic acid，detonation
2015-04-05 Reading quantity 2913
introduction：monishi xianshi yibiao Analog display instrument analog display instrument Use Pointers and scales（disc）Or relative movement between pen and paper，A production process variable is characterized by the position of the change in length or Angle（Measured value）Display instrument。The operator can read the value of the variable according to the position of the instrument pointer or pen on the scale。Moving-coil instrument、Electronic automatic balancing instruments and mechanical（pneumatic）Meters and so on are of this type。The reading mode of analog display instrument is more intuitive,Easy to judge
2015-04-05 Reading quantity 2816
introduction：Most ofTIMKENbearing[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。]There are many causes of damage，Such as a load that exceeds the original estimate、Ineffective seal、Too tight fit leads to too small cylindrical roller bearing clearance and so on。Each of these factors has its own special damage pattern and will leave special damage traces。therefore
2015-04-05 Reading quantity 1481
introduction：Buy a silver rail，We first need to determine the rail width and rail length of the silver guide rail，Then determine the type and number of sliders。The general type of sliders on the silver guide rail have flange type and square。
2015-04-05 Reading quantity 25115
introduction： · 3.5.1 The first method SelectView > Pan/Zoom.... A dialog box appears，You can use this dialog to zoom in、minification、translation、Mediate between two parties、Adapt to Windows and other operations · 3.5.2 The second method Use the mouse Ctrl-On the left，outward，Display reduction ctrl-On the left，inward，Display amplification ctrl-right，Move，Display translation · 3.5.3
2015-04-05 Reading quantity 2817
introduction： Ultrapure water manufacturing history： The first stage：preconditioning——>Male bed——>Anion bed——>Mixed bed The second stage：preconditioning——>Reverse osmosis——>Mixed bed Current stage：preconditioning——>Reverse osmosis——>EDI（Acid-base free） In recent decades，Mixed bed ion exchange technology has been used as the standard process for the preparation of ultra-pure water。Due to its need for periodic regeneration and the use of a large number of chemicals in the regeneration process（Acid base）Mixed water，And cause certain environmental problems，Therefore need
2015-04-05 Reading quantity 2792
introduction：（1）Constituent alloy，To change the internal structure of iron．For example, put chromium、Metals such as nickel are added to ordinary steel to make stainless steel，It greatly increases the rust resistance of steel products． （2）Covering the surface of iron products with protective layer is a common and important method to prevent iron products from rusting．Depending on the composition of the protective layer，It can be divided into the following types： a．Apply mineral oil to the surface of iron products、Paint or fire enamel、Spray molding．Such as：carriage、Buckets are often painted；The machine is often coated with mineral oil． b．Plating on the surface of steel、Hot plating and other methods plated a layer of metal that is not easy to rust，Such as zinc、tin
2015-04-05 Reading quantity 1534
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