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introduction：Introduction to screw nut support seat，Dust and torque characteristics：The fixed end is provided with a lubricant seal cover with a small gap，The support end adopts double-sided sealed bearing，To suppress friction torque。?
2017-05-15 Reading quantity 252
introduction：Screw is just a general term for fasteners，Its just an everyday phrase，It includes：bolt、Screws、nut，As long as there is a threaded fastener bolt by the head and screw（A cylinder with external threads）A type of fastener consisting of two parts，It must fit with the nut，Used to fasten two parts with through holes。
2017-05-18 Reading quantity 255
introduction：Performance grades of nuts for connecting steel structures3.6、4.6、4.8、5.6、6.8、8.8、9.8、10.9、12.9Etc.10Residual level，among8.8Grade and above nuts are made of low carbon alloy steel or medium carbon steel and have been heat treated（quench、temper），Commonly known as high strength nut，The rest are called ordinary nuts。
2017-05-25 Reading quantity 199
introduction：A nut is a kind of nut，Shaped like a butterfly。The butterfly nut can be divided into cold heading butterfly nuts according to the process、Cast butterfly nut and stamped butterfly nut
2017-05-26 Reading quantity 212
introduction：one、At present, the standard parts on the market are mainly carbon steel、Stainless steel、Copper three materials。 （one）Carbon steel。We distinguish low carbon steel by the content of carbon in carbon steel material，Medium and high carbon steel and alloy steel。
2017-06-02 Reading quantity 239
introduction：A hexagon nut is a nut,A part screwed together with a bolt or screw for fastening，A component that must be used in all manufacturing machinery.There are many kinds of nuts,Depending on the material,Split into carbon steel、High strength、Stainless steel、Plastic steel and other major types.
2017-06-02 Reading quantity 217
introduction：Lock nut，It is a nut widely used in machinery and other industries。
2017-06-02 Reading quantity 218
introduction：controller（English name：controller）It refers to changing the wiring of the main circuit or control circuit and changing the resistance value in the circuit to control the start of the motor in accordance with the predetermined sequence、Speed regulation、Master device for braking and reversing。By-program counter、Instruction register、Instruction decoder、The timing generator and the operation controller are composed，It issues commands“Decision-making body”，That is to complete the coordination and command of the entire computer system operation。 There are many kinds of controllers： The controller consists of combinational logic controller and microprogram controller，Both controllers have their strengths and weaknesses。Combinatorial logic controller design is troublesome，Complex structure，Once the design is complete，It cant be modified or expanded，But its fast。Microprogram controller design is convenient，Simple structure，Modification or expansion is convenient，Modify the function of a machine instruction，J
2017-06-30 Reading quantity 284
introduction：304Stainless steel is a kind of universal stainless steel material，Rust resistance ratio200Series of stainless steel material is strong。High temperature resistance is also better，Can be as high as1000-1200The degree of。304Stainless steel has excellent corrosion resistance and good resistance to intergranular corrosion。P-oxidizing acid，In the experiment：concentration≤65%The boiling temperature is below that of nitric acid，304Stainless steel has strong corrosion resistance。It also has good corrosion resistance to alkaline solutions and most organic and inorganic acids。 Our commonly used stainless steel sheet is divided into201and304Two models，Actually, the ingredients are different，304Better quality，But its expensive.，201Less than。Why is that?： 1、304Imported stainless steel plate,201For domestic stainless steel plate。 2、201Be composed of17Cr-4.5Ni-6Mn-N，isomereNiGrade of steel，301Steel substitute for steel。It is magnetic after cold working，For rolling stock。 3、304Be composed of18Cr-9Ni，It is the mos
2017-06-28 Reading quantity 256
introduction：Round steel is roughly divided into hot rolled、Three kinds of forging and cold drawing。The specifications of hot rolled round steel are5.5-250millimeter。among：5.5-25Mm of small round steel is supplied mostly in straight strips in bundles，rebar、Bolts and various mechanical parts；Greater than25Mm round steel，It is mainly used to manufacture mechanical parts、Seamless steel pipe billet, etc。 Round steel is a long, solid steel bar with a round cross-section。Its specifications are expressed in millimeters of diameter，Such as“50”That is, the diameter is50Mm round steel。Round steel is hot rolled、Three kinds of forging and cold drawing。The specifications of hot rolled round steel are5.5-250millimeter。among5.5-25Small round steel in millimeters is mostly supplied in straight strips in bundles，rebar、Bolts and various mechanical parts；Greater than25Mm round steel，Mainly used for manufacturing mechanical parts or seamless steel blanks。
2017-06-28 Reading quantity 244
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