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Development And Performance Research Of Polymer Damping Suspension Products

Posted on:2015-07-16Degree:MasterType:Thesis
Country:ChinaCandidate:J R FengFull Text:PDF
GTID:2271330452970398Subject:Chemical Engineering
Abstract/Summary:PDF Full Text Request
Polymer damping products is an effective measure to control vibration and noisein the operation of mechanical equipment. In the introduction section,this articlediscusses the viscoelastic material damping mechanism and the damping effect of thepolymer.Mechanical and hysteresis losses occurring in the viscoelastic material bythe external force (vibration) is the root cause of the action which produces adamping effect; damping material was characterized by the loss factor, and the lossfactor of the viscoelastic material is much higher than other materials, which have acommon reason for this is the viscoelastic properties of the polymer produced in thedamping material.In the third chapter,the author describes the preparation andproperties of butyl rubber damping blocks air conditioning.Air conditioning butylrubber damping blocks are standard Media air machine damping block analyzedformulation design, production,testing and product performance and formulationrelations.Formulation use butyl rubber and butyl reclaimed rubber as the main part,adding a certain percentage of polyisobutylene and additives. Production processaccording to production recipe ingredients, kneading mixing, straining to get rubber,extrusion molding machine cutting machine, extrusion molding.In the fourthchapter,the author describes the entire process without damping plate of hot meltasphalt automobile. Chang`an Automobile damping plate is the standard hot meltdamping plate formulation. Recipe was mixed by butyl rubber, butyl reclaimed rubber-based material, add some ingredients formed. Process for preparing hot melt butylfirst damping rubber, extruded rubber compound, rolling, punching after cooling andparked obtain the product.In the fifth chapter,the blocks and car air conditioningdamping damping plates are summarized.In the process of development and research in this subject, through collecting alot of information,the polymer materials viscoelastic material damping mechanismwere analyzed and summarized,which provide a theoretical basis for the preparationof damping products.In the preparation of the damping plate blocks and preparation,in accordance with product standards, a large number of tests recipes, selecting thebest recipes, small-scale, pilot, finalize production formula.Development of air conditioning butyl rubber damping blocks is Hebei Wenanfuli Rubber Company jointresearch and development, the use of factory production equipment, testing equipmentto accomplish together; the study of car-free hot melt bitumen damping plate is HebeiDingxing Fulihua automotive parts factory joint research.The study of polymer elastic material proved that the butyl rubber compositeviscoelasticity at the glass transition region is the damping characteristic workingarea.Air conditioning butyl rubber damping blocks is essential for general airconditioner parts, played the role of air compressor to reduce or eliminatevibration,and damping block the development of production for the company to fillthe gaps, the factory has brought benefits.No asphalt car damping plate is the use ofhot melt butyl reclaimed rubber-based polymer materials, has to meet environmentalperformance standards, inexpensive features, no asphalt damping plate researchDingXing Fulihua Automotive Parts Factory has developed a new product.
Keywords/Search Tags:viscoelastic material, damping, hot melt, loss factor, the penetration
PDF Full Text Request
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