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introduction：Equipment overview： HR（Z）Piston push centrifuge is a continuous feed，A filter centrifuge in which the separated cake is discharged intermittently from the drum。Continuous operation of the machine、Large production capacity、Filter cake can be fully washed，High washing efficiency、Low power consumption、Dry quickly、The damage to grain is small。The machine is suitable for separating solid particles≥0.25mmA suspension of crystalline or fibrous materials。Widely used in chemical industry、Light industry、pharmacy、Food and other industrial sectors。Such as polyethylene、polystyrene、caffeine、Oxalic acid、phosphates、hydrochloride、sulfate、nitrate、Potassium carbonate、Ammonium nitrate、Ammonium bicarbonate、Ammonium chloride
2015-01-06 Reading quantity 2783
introduction： ABC America American precision bushing Company Large rolling 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，Used to reduce power transmission during the process
2015-01-06 Reading quantity 1463
introduction： 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 sequence of superfinishing can generally be divided into three steps：cutting、Half cut、Finished finish。 A：Cutting of bearing When the surface of the grinding stone is in contact with the convex peak of the surface of the rough raceway，Due to the small contact area，The force per unit area is larger，Make under certain pressure
2015-01-06 Reading quantity 1467
introduction：FMSThe process basis is group technology，It determines the process according to the group of processing objects，Select suitable CNC machining equipment and workpieces、Tools and other materials storage and transportation system，It is controlled by computer，Therefore, it can automatically adjust and realize the batch production of a variety of workpieces within a certain range(Namely have“flexibility”)，And can change the product in time to meet the market demand。 FMSIt has two functions of processing and manufacturing and partial production management，Therefore, it can comprehensively improve the production efficiency。FMSThe range of processes is constantly expanding，Blank fabrication may be included、machining、Assembly and quality inspection, etc。80age
2015-01-06 Reading quantity 2826
introduction： This paper aims at the technological requirements and current situation of special-shaped cuttingCAD/CAMCurrent status of software，A graphic interactive automatic programming system for profile-shaped cutting is introduced。The system toAutoCADFor development platform，Make use ofAutoCAD VBAandVB6.0For development tools，The machining path generation is realized，Nc code generation，Trajectory simulation and other functions。Friendly system interface，Work reliably，It has practical use value。 one、introduction Profiled cutting is done using a water cutting machine、Engraving machine and other special cutting machine for special-shaped sheet metal、glass、cloth、marble
2015-01-06 Reading quantity 2808
introduction： （one）Flow properties of lubricating oil：viscosity、Viscosity index、Pour point and freezing point 1、 viscosityViscosity： When the oil is subjected to external force and relative movement，Creates resistance between the oil molecules，Make the lubricating oil can not flow smoothly，The amount of resistance is called viscosity。The viscosity value decreases with the increase of temperature。 Viscosity measurement methods can be divided into absolute viscosity and relative viscosity。Absolute viscosity is divided into dynamic viscosity、Kinematic viscosity two kinds；Relative viscosity has Engler viscosity、Saybolt viscosity and Redwood viscosity and other expression methods。
2015-01-06 Reading quantity 1572
introduction：According to the passive device market research institutePaumanokAccording to a company survey，Due to2001Turn of the year2003During the year, global circuit protection device production growth was limited，Therefore, the price of circuit protection devices will rise steadily last year and this year，But there will be a slight decline next year。The company forecasts，2005Global current protection device market capacity22.9Hundreds of millions of dollars，arrive2008The year will fall to21.6Hundreds of millions of dollars。 This is despite a weak market，But polymer positive temperature coefficient(PPTC)Thermistors, on the other hand, are doing well，Not only did it not fall，Instead, it continued to increase at a steady rate。Teko
2015-01-06 Reading quantity 2860
introduction： First of all，Lubrication is key。Choose the right lubrication system and high quality lubricants。The oil film separates the oil film surfaces that come into contact with each other due to load，And provide the necessary protection against corrosion and wear，So for all rotating or reciprocating parts，Especially 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。]In terms of gears，Such as
2015-01-06 Reading quantity 1594
introduction： Hu Zucai, deputy director of the National Development and Reform Commission, recently said at the National Price directors meeting，2013The micro environment is generally favorable，The positive energy of price stability is increasing，But there are some challenges。Meeting demand，Price authorities at all levels should adhere to the fundamental stability of the overall price level as a primary task，Intensive production、turnover、Inductive regulation and supervision of consumption category。Adhere to market orientation，Push oil and gas、Coal power、Railway freight、Price reform in areas such as medicine；Distinguish between fundamental and non-fundamental，Promote the ladder pricing criteria；Use the price lever，We will promote energy conservation, emission reduction and renewable energy。In a push for reform
2015-01-06 Reading quantity 2855
introduction：1.Beryllium oxide：Beryllium oxide doesnt just lose a lot of steel，It also reduces the surface quality of forging and the service life of forging die，If pressed into the metal，It will cause the forgings to be scrapped。Failure to remove beryllium oxide will affect machining。 2.decarburization：Decarbonization refers to the phenomenon that all or part of the carbon on the steel surface is burned off。Decarbonization causes soft spots on the surface of the workpiece，Reduces surface hardness、Wear resistance and fatigue strength。 3.Overheat and overburn：Superheat is when the steel exceeds the allowable temperature during heating，Make the grain grow coarse。Overheating is not conducive to heat treatment，The steel becomes brittle and the mechanical properties are reduced，However, it can be eliminated by normalizing or annealing after forging。Excessive burning refers to cause
2015-01-06 Reading quantity 1468
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