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cooling relief squeeze casting

已有 301 次阅读  2011-12-06 04:17   标签mulberry  outle 

Squeeze Casting aluminum alloy wheels


eezeeastingresuhsinconverseflowofalloyliquid. whichimprovessolidificationconditionofZA43alloyandavailstOeliminateporosity. andmakeslesspressurelossduringtheprocess. whileplungersqueezecast-ingalsoenhancesflowofalloyliquid, butthereisnomacro-flow. andpressurelossishigher. ToachieveZA43alloycastingswithhighplasticity. specificpressureofplungersqueezecastingismuchhighertb_anthatofpunchsqueezcastingKeyWords: SqueezeCasting, ZA43Alloy,ed hardy espana, MechanicalProperties, SpecificPressure recent years, rapid development of high aluminum zinc alloy. Gradually expanded the scope of application. Zinc alloy casting conditions in general prone to defects such as Shrinkage,uggs online bestellen, its plasticity is low. Toughness is poor,mulberry vesker, limiting its application. Squeeze casting is under mechanical stress. For filling, solidification,ed hardy vaatteet, feeding and plastic deformation process. To obtain excellent mechanical properties of a casting process method. Pressure by squeezing the role of the liquid metal form, squeeze casting can be divided into direct and indirect squeeze casting two types of squeeze casting. ]. Height to diameter more hours, [2] derived the critical pressure ratio squeeze casting formula. This paper studies the direct squeeze casting and squeeze casting plunger squeeze casting two kinds of punch-type squeeze casting methods on mechanical properties of ZA43 alloy and alloy fluid flow and solidification from the feeding point of the two kind of way to squeeze casting process theory to analyze two critical ways than squeeze casting pressure. * Friends in regret. Male. Born in 1945, Professor. Shenyang University of Technology Laboratory strength of the material sank Tiexi Xinghua South Street, No. 58 (1100231 Date 1999-09-05 metal forming give a bonus received a significant impact is too low. Easily solidified alloy,ralph lauren outlet, the required units of pressure; high . easy to produce shrinkage must be noted. squeeze casting alloy sand casting temperature casting temperature is higher than the General wanted to pouring temperature control at a relatively low value, because when you want to eliminate squeeze casting porosity, shrinkage,mulberry outlet, and loose in pouring temperature is low. gas within easy escape from molten alloy,mulberry oslo, and very few remain in the metal,ed hardy nederland, easy to eliminate holes in addition. can reduce shrinkage and the formation of the opportunity, and because the lower pouring temperature, metal spill less. can reduce the glitch. squeeze casting of the casting wheel temperature selection 72o ~ 740c is the most appropriate units (7) lubricant mold lubricant is to protect, improve casting surface quality and easy to remove the casting from the mold. the use of graphite lubricant oil . that the purpose of 5 200 300 95 oil added to the graphite in the. mix well. with the spray gun in the mold cavity surface, its thickness is too thick for the 005 ~ 0.1n1m will affect the quality of casting surface (8 ) cooling relief squeeze casting, the mold is generally immediately,uggs kopen, so the casting of a mold temperature of 24 high order to prevent high-temperature air-ling when casting thin-walled and thick-walled junction cracks, should be out after the model immediately into the heap of sand castings, to be cooled to below 150C and then remove the air-cooled 4 Conclusion cars, motorcycles and bicycles and other transportation parts production. the world gradually replace the steel with aluminum materials systems engineering research is need to address the future long-asked question. foundry technology and forging technology combine to form Squeeze Casting process advanced in technically and economically superior to the pressure casting process and it is particularly suitable for complex shape, with a porous Parts or shape forming step, is a kind of wide applicability, greater promotional value and promising technology. References 1 Department of Shanghai Jiaotong University, forging good at forging Jie, Beijing: National Defense Industry Press. 1981.70 ~ 822 Hung Shen chapter condemned at home and abroad aluminum alloy forging state and prospects of development of mechanical manufacturing, 1999 (3): 12 - 13 (Editor: Yuan Zhenguo),uggs nederland, n the first, afternoon carp, => L, bare
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