外文翻譯---冷軋橫向偏移量的控制性能(存儲版)
【正文】 hniques and have been used by many famous machinery manufactures, such as SMS SchloemannSiemag AG. (1) Viscosity The viscosity of pasty elastic material can produce very strong stick friction and absorb tremendous energy produced by external force when piston moves, this special property makes shock absorber or buffer have special damping and buffering functions. (2) Compressibility When elastic damping material is exerted a very big external force, its volume contracts, the volume of contracted part is similar to liquid, its contraction can reach 15%.The special property makes its function better than spring. Preparation of elastic damping materials and their property The mother body of elastic damping material is a stable macromolecule pound, after it is synthesized by many kinds of carefully chosen industrial chemicals, through hydrolysis and crack then under the action of catalyst, make ionic openloop polymerizing. After the mother body is finished, supplying intensity, antiageing and adding viscosity etc. many processes are needed to perfect its different physical properties. Last finished macromolecule pounds are ketonic products, according to different requirements, their molecular weights are between 4 hundred thousand7 hundred thousand, they appear in polymer form and scarlet, half fluid, put them aside for a while, their surface shows metallic luster. Special properties: (1) High viscosity (2) Strong pressibility (3) Good thermal stability (4) Special chemical inertia (5) Without ageing phenomenon High energy elastic damping disc shock absorber High energy elastic damping material disc shock absorber produced by Jerrat (shorter form: disc shock absorber) are annular high energy damping shock absorber, its structure is pact and there is shock absorbing need in the direction of axial. Compared with disc spring, disc shock absorber eliminates plicated process of superposition mounting, its mounting is simple and doesn’t need to maintain. Because it realizes shock absorbing way with a shock absorbing instead of steel springs superposition, so its advantages of rigidity, ageing resistance stable mechanical property shown in practice are beyond parison. Excellent properties of elastic damping materials enable disc shock absorber to satisfy big load shock absorbing requirement at very small volume so that effectively save design space. Its these good properties are also suitable for the anchor bolt shock absorbing etc. situations. High energy damping buffer Basic principle By the action of dynamic applied force, the fast insertion of piston will result in steep increase of friction between piston and damping material and piston rod is decided by moving speed, both are in direct proportion. The friction between solid sealing parts is decided by internal pressure, ., the larger internal pressure
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