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introduction：KOYObearing[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。]Conditions of use and environmental conditions Correct graspKOYObearing[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-sized
2015-05-03 Reading quantity 1567
introduction： Abstract For CNC technology and equipment to high speed and high precision development needs，A new high precision trajectory control technique is developed。Its core content is to generate tool motion path by high frequency and high resolution sampling interpolation，Through the new Angle—The linear displacement double position closed-loop control ensures the accurate realization of the desired trajectory，The influence of mechanical error and interference on trajectory accuracy is eliminated by information trajectory correction，Thus, the controlled machine tool can be operated with high precision in the production environment for a long time。The new numerical control system has been applied in many kinds of domestic numerical control machine tools，Good results have been obtained。 descriptor：
2015-05-03 Reading quantity 2801
introduction：Buying rails is like buying clothes，First, determine your height，weight，Choose the right size。When choosing a guide rail，How do we determine the width of the rail？
2015-05-03 Reading quantity 19380
introduction：Mechanical seal is also called end seal(Mechanicalseal),It is a dynamic seal for the rotating shaft.Mechanical seal performance is reliable,Small leakage,Long service life,Low power consumption.No frequent maintenance required,And can adapt to the production process automation and high temperature,hypothermy,High tension,vacuum,High speed and a variety of highly corrosive media.The sealing requirements of harsh working conditions such as solid particle medium.Mechanical seals rely on one or more pairs perpendicular to the shaft for relative lubrication of the end face at fluid pressure and to compensate for the elasticity of the mechanism*(Or magnetic force)The shaft that holds the leakage resistance of the joint with an auxiliary seal
2015-05-03 Reading quantity 1576
introduction：Plastic fraction：Thermoplastics and thermosetting plastics one、thermoplastic Soften to flow when heated，Cooling hardening，This process is reversible，Can be repeated。polythene、polypropylene、Polyvinyl chloride、polystyrene、polyformaldehyde，Polycarbonate cheese，polyamide、Acrylic plastics、Other polyolefins and their copolymers、Gather satire、Polyphenyl ether，Chlorinated polyethers are thermoplastics。The molecular chains of resins in thermoplastics are linear or with branched chains，No chemical bonds are formed between molecular chains，Soften the flow when heated．The process of cooling and hardening is a physical change。 two、Thermosetting plastics The first time
2015-05-03 Reading quantity 2919
introduction： Electric forklift technology to meet the needs of customers The technology of electric forklift products is very important。Technology can reduce the production cost of products，Increase product sales profit；Technology can make electric forklift products more in line with customer needs，To attract more consumers。 In fact, electric forklift products can not be empty technology，The key also depends on whether the product can meet the needs of customers。What do you need to buy? What is the first condition for customers to choose products。Technology is just one way that electric forklift manufacturers use to make their products meet customer needs“tool
2015-05-02 Reading quantity 2827
introduction： For afforestation(Including afforestation﹑Forest cultivation and forest protection)﹑Wood cutting and forestry lifting and conveying machinery。The broad sense of forestry machinery also includes wood processing machinery﹑Wood-based panel machinery and forestry chemical equipment and other comprehensive utilization machinery。Forestry machinery is mostly carried out in the open under mobile conditions﹐Due to the influence of natural conditions, it has a certain region。Forestry machinery to accelerate the speed of greening﹑It is of great significance to expand forest resources and promote the virtuous cycle of ecosystem。 Brief history The use of machinery in forestry production began with wood handling。1892years﹐First tractor
2015-05-02 Reading quantity 2816
introduction：Recovery of sugar from waste honey，The effluent is concentrated and used as feed，It is one of the desirable schemes for the pollution-free utilization of waste honey in sugar factories。 RTContinuous recovery of waste honey，Contrast with the old Stephen method，Its advantage is that：Continuous production，Simple equipment，Use less steel，High sugar recovery rate，Easy to operate。 In FranceOrignySainte-BenoiteThe sugar factory adopts this method in the fully automated waste honey recovery workshop，One-man management。 one、Process conditions and equipment characteristics： 1、The quality of lime powder is the key to the recovery process of waste honey
2015-05-02 Reading quantity 2935
introduction：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，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]There are both rolling friction and sliding friction。Sliding friction is caused by the deviation of the rolling bearing on the surface curve and the bearing deformation under the load。For example, between a scroll and a ring，Since spheres and rings are not absolutely rigid bodies，Their contact area always has to be elastic，In theory, it is a point connection
2015-05-02 Reading quantity 1495
introduction： 1. Process flow liven（Check technical conditions、quantity）→Identification material→Determine the quenching operation mode→Selective fixture、Binding wire→drying→heat→cooling→Clean up oil→temper→sandblast→rust-proof→straightening→inspect→Hand over。 2. Quenching heating （1）equipment：Medium temperature salt bath furnace，The proportion of common salt bath and the scope of use are shown in the following table （2）Heating method is as follows： a.General parts after drying，Direct heating in quench charging。 b.When parts are heated in a salt bath，Suspension should be used，mod
2015-05-02 Reading quantity 1496
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