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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。]After installation，To check that the installation is correct，An operational check is required。Small machines can be turned by hand，To make sure the rotation is smooth。Check items for foreign bodies、scar、Poor operation due to indentation，Due to poor installation，The force caused by poor processing of the mounting seat
2015-04-03 Reading quantity 1525
introduction：Metallic materials belong to metallurgical products，Engaged in metal material production、Order goods、transport、Use、Storage and inspection must be in accordance with uniform technical standards--Metallurgical product standard。Personnel engaged in metal materials must master the relevant content of the standard。 The standard for the use of metallurgical products in our country is the national standard（code-named"National standard"GB""）、Departmental standard（Ministry of Metallurgical Industry standard"YB"、Standard of first Machinery Department"JB"Etc.、）firm
2015-04-03 Reading quantity 1428
introduction：Ideal thermal cycle for gas turbine plants，19American engineers of the CenturyG.B.It was proposed by Branden，Hence the name。figure[The Branden cycle]For the Branden cycle under pressure-let(-V)Tuhe Wen-entropy(T-S)The representation on the graph。It is caused by an adiabatic compression process1-2、Constant pressure heating process2-3、Adiabatic expansion process3-4And constant pressure heat release process4-1Composed of reversible cycles。The thermal efficiency of the Branden cycle is [0029-02]Where is the net work output，QIs the input heat。This formula shows that，Main pressure ratio[0029-03]Increase and improve,And with the working medium
2015-04-03 Reading quantity 2796
introduction： Jaw crusher also known asPEXJaw crusher，isPEUpgrades for jaw crusher。The jaw crusher remainsPEJaw crusher crushing ratio is large、Uniform product size、Simple structure、Reliable performance、The advantage of easy maintenance，Suitable for rough、Intermediate crushing，The crushing strength is2000kg/cm2All kinds of ores、Rock material。Jaw crusher is a sand production line、One of the best equipment for coarse breaking in mining and beneficiation。The bearing will appear in the long-term high load operation of the jaw crusher[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is in the process of mechanical transmission
2015-04-03 Reading quantity 1444
introduction：Die design，First of all, the mold type should be selected according to the process plan（Simple die、Progressive die or compound die），Determine the specific overall mold structure form。This is a key step in die design，It directly affects the quality of stamping parts，Cost and stamping productivity。 There are many forms of mold structure，According to the shape of the stamping parts、dimension、precision、Material properties and production batch and stamping equipment、Die working condition、Process plan and other design。Under the premise of meeting the quality requirements of stamping parts，Strive for simple mold structure、Short manufacturing cycle、Low cost、High production efficiency、Long life。 Determine the mold structure
2015-04-03 Reading quantity 2797
introduction：Do not hammer the bearing directly during installation[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。]End face and non-stressed surface，Should be pressed block、Sleeve or other mounting tool to force the bearing evenly，Do not install power through rolling body。If the mounting surface is coated with lubricating oil，Will make installation smoother。If the fit interference is larger，The bearing should be heated in mineral oil until8
2015-04-03 Reading quantity 1524
introduction：one）SlideTIMKENbearing[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。]Types and characteristics of ISlideTIMKENType of bearing Or radial slipTIMKENbearing， 1．SlideTIMKENBearings are divided according to the load received：Centripetal slipTIMKENbearing。It mainly accepts radial loads
2015-04-03 Reading quantity 1436
introduction：Microwaves are frequencies in300Megahertz to300Gigahertz electromagnetic waves。The water molecules in the heated medium are polar molecules，It operates under a rapidly changing high-frequency electromagnetic field，Its polar orientation will change with the change of external electric field，Causing motion and friction between molecules。At this time, the field energy of the microwave field is converted into heat energy in the medium，Increase the material temperature，A series of physical and chemical processes are produced to achieve the purpose of microwave heating and drying。 Microwave heating characteristics： 1、Fast heating speed。Microwave heating is completely different from traditional heating methods。It is to make the heated material itself become
2015-04-03 Reading quantity 2872
introduction：In recent years，High-speed cutting has established itself as an alternative to traditional machining methods or complementary technology，Such as replacing traditional milling or EDM forming processes。however，Experience shows that，For many years, it has been considered to be the manufacturing process or integral component manufacturing technology with modern technological level of engine and gearbox manufacturing，And can not be simply transferred to the manufacture of tooling。Today the geometry and materials of the workpiece change every day，Required delivery times are getting shorter and shorter，Also on machining accuracy、Surface quality and flexibility are required，These are different from previous requirements for mass production。On the other hand，Efficiency of high speed machining
2015-04-03 Reading quantity 2882
introduction： Arm type bucket-wheel stacker and reclaimer is a kind of large stacker and reclaimer equipment。It has a large capacity to take materials，The material yard covers a small area，Easy to operate，The advantages of automatic control are widely used in the industrial sector。nearly30For years，Due to the rapid increase in the capacity of coal-fired thermal generating units，Coal transport systems have also been scaled up。This change puts forward higher requirements for the reliability and productivity of coal transport system。 What kind of storage equipment is selected for coal transport system depends on the total installed capacity of the power plant，That is, coal consumption。The arm type bucket-wheel stacker reclaimer is widely used in the coal transport system of modern large thermal power plants
2015-04-03 Reading quantity 2785
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