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introduction：one、Rolling mill 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。]Installation of Rolling mill 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，Bring down
2014-12-29 Reading quantity 1503
introduction：Abstract：This paper discusses the three-level medium-voltage frequency converter in Qinghai oilfield submersible electric pump、Applications on pumping units，The difficulties in the application of frequency converter in Qinghai oilfield are explained，The application prospect is demonstrated。 1introduction Qinghai oilfield，Located in Qinghai and Xinjiang、The border of Gansu，Qaidam Basin, one of the four major basins in China，Altitude approach3000m，Its the highest oil field in the world。Here geology、The weather conditions are very difficult，The Kunlun Mountains are covered with snow all year round，Beneath our feet are barren deserts and salt flats，Frequent sandstorms，Wind and sand wreak havoc。 In this ring
2014-12-29 Reading quantity 2838
introduction：Frozen food is subject to strict screening of raw materials，processing，Conditioning and preparation，Low temperature rapid freezing，Sealed package，Low temperature storage、transport、Modern processed food for sale。In the process，To maximize the frozen food to maintain the original color of the food、sweet、taste、Taste and nutritional content，High freshness、Of good quality，And secure、hygiene、expediency、fast，Quality control is particularly important。 Quality control of frozen food，It can be divided into two stages: production process and product circulation process。In these two stages，How to strengthen the quality control？Recently held in Jilin Province frozen food technology exchange meeting，Chinese refrigeration
2014-12-29 Reading quantity 2851
introduction： Thermal spraying technology is an important part of surface engineering in the field of materials science，It is a surface strengthening and surface modification technology，The metal is resistant to abrasion by spraying a coating on the surface of the metal substrate、Corrosion resistance、High temperature oxidation resistance、Electrical insulation、Thermal insulation、Radiation protection、Wear reduction and sealing properties。Thermal spraying technology is mainly used for high temperatures、wear-resistant、Pre-protection of components such as corrosion resistance、Preparation of functional coatings and repair of failed parts。 Flame spraying is widely used in the thermal spraying process、Arc spraying、Plasma spraying、Explosive spraying and supersonic spraying technology。Flame spraying yes
2014-12-29 Reading quantity 2862
introduction：TIMKENbearing[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 examination should be carried out under an astigmatic lamp，rightTIMKENbearing[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 are on the shaft
2014-12-29 Reading quantity 1526
introduction：The inkjet printer is controlled by a single chip computer，Non-contact inkjet marking system。This is done by controlling an internal gear pump or by supplying compressed gas from the outside of the machine，Apply some pressure to the ink in the system，Make the ink pass through a few dozenUMOrifice injection。A crystal oscillating signal added above the nozzle splits the outgoing continuous ink lines into the same frequency，Equal in size，Spaced ink drops，then，The ink droplets are separately charged as they pass through the charging electrode，The amount of power it carries is determined by the central processorCPUExercise control；Then the detection electrode detects whether the actual charge and phase of the ink drop are correct；finally，Charged ink droplets form a deflection at the deflection electrode
2014-12-29 Reading quantity 2906
introduction：The following isISOSpecified roughness values and grade tables，AmericaANSIThe value and grade are the same as theirs。 Roughness valueRa .....Roughness grade number ....Roughness valueRa ....Roughness grade number μm（micron).μin（microinch）..... ......μm（micron）.μin（
2014-12-29 Reading quantity 2955
introduction： one、Contact fatigue strength 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。]Under the action of cycle load，The contact surface is prone to fatigue damage，It cracks and flaks，This is the bearing.[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is used to fix and reduce the load during mechanical transmission
2014-12-29 Reading quantity 1610
introduction：〇High speed ratio and rate single stage transmission，Can reach1：87Deceleration ratio of，Efficiency in90％above，If the use of multistage transmission，The deceleration ratio is greater。 〇Compact structure and small size due to the use of planetary transmission principle，The input axis and output axis are on the same axis line，Make its models as small as possible。 〇Smooth running low noise cycloidal needle teeth more engaged teeth，The overlap coefficient is large and the mechanism of mechanical balance is present，Keep vibration and noise to a minimum。 〇Reliable use、Long life because the main parts are made of high carbon chromium steel material，quenched（HRC58～62
2014-12-29 Reading quantity 2869
introduction：one、IKOBearing vibration IKOBearing vibrates against 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 damage is very sensitive，exfoliation、impression、corrosion、crack、Wear and tear will be in the bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is used to fix and reduce the load during mechanical transmission
2014-12-29 Reading quantity 1603
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