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introduction： Washing oil、gasoline、Ethyl alcohol、Dehydrated liquid、Neutral or alkaline cleaning agents can be used to cleanSKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”；SKFThe group is headquartered in Gothenburg, Sweden，Is a leader in bearing technology and manufacturing。SKFBearings can be divided into sliding according to different specific structures and similarities and differences in working propertiesSKFBearing and rollingSKFbearing]。But it should be noted“gasoline、Washing oil、Ethanol and dehydrated liquids are flammable；Alkaline cleaning
2015-04-06 Reading quantity 1483
introduction：jinshu qiexiao yuanli Principle of metal cutting theory of metal cutting A discipline that studies the interaction between the tool and the workpiece in the process of metal cutting and their respective changing laws。In designing machine tools and tools、Make cutting process and quota of machine parts、Rational use of tools and machine tools and control of the cutting process，Use the research results of metal cutting principles，Make the machining of machine parts economical、Quality and rate of purpose。 A brief history of metal cutting principles
2015-04-06 Reading quantity 2789
introduction： Parts used to transport various fluids in pipes。The pipe section is usually circular﹐There are also shaped tubes made of non-circular cross sections。Some metal pipes such as steel pipes and copper pipes can also be used as structural parts or decorative components。Pipes are made of many materials﹐Steel is commonly used﹑Metals such as iron and copper and ceramics﹑Non-metal such as plastic and rubber。Pipes can also be made of metal and metal or metal and non-metal composite materials。Bamboo pipe was the first pipe to be used。As early as B.C.2000Before the New Year﹐The Chinese have already used bamboo pipes in water pipelines。 Cast iron pipe It is produced by centrifugal casting or sand casting﹐
2015-04-06 Reading quantity 2823
introduction：Environment and resources are the most compelling topics in the world today，Scientific and rational use of limited resources is the basis of environmental protection。 Worldwide due to material corrosion，It consumes a lot of resources，It has caused great losses to mankind，Hindering the development of productive forces，And further contribute to the deterioration of global environmental conditions。According to some industrial countries，Direct losses due to corrosion amount to gross national product（GNP）the2%~4%，The most developed United States is as high4%above。The direct economic loss caused by corrosion in China every year is at least one200Hundred million yuan。 Plastic is a new kind of material，Has relatively excellent chemistry
2015-04-06 Reading quantity 2800
introduction： Plastic products have been widely used in industry and daily life。Plastic molds have been refined、Large-scale development，The performance requirements of plastic die steel are getting higher and higher。The properties of mold steel should be based on the type of plastic、Product use、Molding method and production batch size depends。Plastic die steel is generally required to have good comprehensive properties，The requirements for the strength and toughness of the mold material are not as high as those for cold and hot working molds，However, the processing performance of the material is required，Such as heat treatment process is simple、Handle small or no deformation、Good cutting performance in pre-hard state、Mirror polishing performance and pattern etching performance are excellent。
2015-04-06 Reading quantity 1469
introduction：It is increasingly important to check the condition of machines in operation and prepare a thorough inspection plan，Which again with 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。]Be the center of attention，Because its the most important rotating part of any machine，Condition monitoring is an important part of preventive maintenance，Early detection of bearing damage to avoid damage caused by bearing damage
2015-04-06 Reading quantity 1546
introduction： Characteristics of electromagnetic clutch：High speed response：Because of the dry type, the torque is communicated very quickly，Convenient movements can be achieved。Strong durability：Good heat dissipation，And they use high-grade materials，Even at high frequencies，High energy use，Also very durable.Easy assembly and maintenance：Ball 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，It is used to reduce the coefficient of friction in the process of power transmission and keep the center position of the shaft fixed
2015-04-06 Reading quantity 2878
introduction：1.Select methods and steps Whether the rolling imported bearings can be correctly selected[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。]，Whether the host can obtain good working performance，Extend service life；Whether the enterprise can shorten the maintenance time，Reduce maintenance costs，Improve the speed of the machine，Have a very important role。therefore，Whether it is a design and manufacturing unit，Or maintenance use unit，In the selection of rolling imported bearings[Imported bearing:easy
2015-04-06 Reading quantity 1430
introduction： 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。Long-distance transmission
2015-04-06 Reading quantity 2825
introduction：peel From the Damage state:FAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]When rotating under load，Inner ring、The raceway surface or rolling surface of the outer ring shows a fishscale peeling phenomenon due to rolling fatigue。 The original Due to the:Excessive load。Poor installation（nonlinearity）Torque load foreign body intrusion、flooding。Poor lubrication、Improper lubricantFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a cage assembly with a solid window cage
2015-04-06 Reading quantity 1439
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