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introduction：Inorganic coating Material protection technology A coating of inorganic material on a metal surface。Commonly used materials are diabase﹑Clay cement﹑Refractory metal oxides﹑carbide﹑Cermet and enamel, etc。Diabase cladding can be used as a lining﹐It is resistant to acid and wear。Low cost of cement coating﹐Its coefficient of expansion(1.0×10-4/℃)It is close to the expansion coefficient of steel(1.2×10-4/℃)﹐It can be applied to the inner wall of the steel pipe by centrifugal casting or sprayed on the outer surface﹐The thickness is generally0.5～2.5centimetre﹐Resistant soil﹑Corrosion of seawater and mine water。A pipeline that carries natural gas over long distances
2015-05-25 Reading quantity 2810
introduction：Fault name Fault cause Elimination method The reducer has an uneven tapping sound when the gears are engaged，Casing vibration The tooth surface is defective，The teeth do not touch along the full tooth surface，Its touching on a corner。 Gear change。 Retarder housing，Especially for mounting 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。]Topical fever
2015-05-25 Reading quantity 2834
introduction：In order to judge the removedtimkenbearing[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。]Can it be reused?，It is important to check its dimensional accuracy、Rotation accuracy、Internal clearance and mating surface、Raceway surface、Cage and seal ring, etc。 About the test results，It can be judged by those who use conventional one-way bearings or are proficient in bearings。 judgment
2015-05-25 Reading quantity 1633
introduction：SF - 2Boundary lubricationINAbearing[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。]add：Acid polymers must be assembled with formaldehyde，High wear resistance，INAStorage pits on bearing surfaces are arranged regularly，grease，Especially for high load and low speed rotating motion，Rocking motion，Often set a negative，It is not easy to form a flow
2015-05-25 Reading quantity 1636
introduction：Commonly used materials for stamping one、The material requirements of the stamping process： 1.First of all, to meet the requirements of the use of stamping parts：intensity、stiffness、Electrical conductivity、Thermal conductivity、significance、Corrosion resistance。 2.To meet the stamping process conditions should have good plasticity and surface quality、The thickness of the sheet。 two、Types of commonly used materials for stamping，Performance and specifications Sheet material for stamping Ferrous metal Carbon structural steel plates such asQ234 High-quality carbon structural steel plates such as08F Low alloy structural steel plates such asQ345。Q295 Electrical silicon steel plate Such asD12 D41 Stainless steel plate
2015-05-25 Reading quantity 2930
introduction： Working principle The machine is working，Because the mixing bucket has multi-direction operation，Make various materials in the mixing process，It accelerates the flow and diffusion，At the same time, the phenomenon of material segregation and accumulation caused by centrifugal force in the general mixer is avoided，Therefore, excellent mixing results can be obtained。 with road HDSeries multi-motion mixer is a widely used in pharmaceutical industry、Chemical engineering、food、Novel material mixer for light industry and scientific research units。The machine can mix powder or granular particles with good fluidity very evenly，Make the mixed material to achieve the best results
2015-05-25 Reading quantity 2859
introduction：Hole machining of various parts，Remove part by car、boring、Milling and other machine tools are completed，A large part is made by fitters using drill presses and drilling tools（Drill bit、reamer、reamer）complete。The method of machining holes by fitters generally refers to drilling、Reaming and reaming。 Drilling a hole in a solid material with a drill is called drilling。When drilling in the drill press，In general，The drill should complete both movements simultaneously；Main motion，That is, the rotational motion of the drill around the axis（Cutting motion）；Auxiliary movement，That is, the drill moves in a straight line along the axis to the workpiece（Feed motion），When drilling，Mainly due to the lack of drill structure
2015-05-25 Reading quantity 2880
introduction： In useKOYObearing[KOYObearing:kOYOBearings are generally required to bear large loads，Often without a cage，Instead, fill the inner and outer raceways with rolling elements。And most small and medium-sizedKOYORolling bearings are equipped with retainers。 inKOYOBearing in the processing process，The outer ring of the bearing、Inner ring、How do the roller and cage fit together。]when，We must first check the appearance of imported bearings，To determine whether it meets the standards we require。Let me share with you the parts that we should check。
2015-05-24 Reading quantity 1572
introduction： 4 Processing accuracy is increasing day by day Especially since80Since mid-decade，The automobile industry is trying to enhance the competitiveness of its cars，The manufacturing tolerances of the key parts of the engine are constantly tightened(table3)，And through computer aided measurement and analysis methods，And improve the quality of its products through equipment capability testing。At present，In the acceptance of combined machine tools and automatic lines，It is generally required that the process capability factor of the equipment should be greater than1.33，Some even require the process capacity factor to be greater than1.67，In order to ensure stable machining accuracy。It should be pointed out，adoptCp≥1.33To check the equipment，This excess
2015-05-24 Reading quantity 2851
introduction：polyester（PET）It is one of the main raw materials in the beverage packaging field，Good transparency、Chemically stable、The barrier property is relatively good、Lightweight, cheap and recyclable and other advantages，But as a beer bottle，PETThe gas barrier is still not high enough。therefore，Improving the gas barrier property of polyester bottle is one of the main research directions of beer plastic packaging。Among them, the surface coating method is the earliest、One of the most craft，It has become an important means to improve the gas barrier property of polyester bottles。 The surface coating method uses a variety of high permeability coatings and a variety of coating techniques，inPETThe inner and outer surfaces of the bottle form a very thin anti-penetration layer，every
2015-05-24 Reading quantity 2928
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