1_4468高強度雙相不銹鋼的精鑄-資料下載頁
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【正文】 l deformation of the die casting die at high working temperatures can result in the block of the side drawing core and directing mechanism. The effects of thermal deformation on die casting die can be elim inated and service life of the die can be imp roved by adjusting the structure of slideway and direc2 ting mechanism.Key W ords: D ie Ca sting D ie, Therma l D eforma tion,W ork ingTempera tureElmi ina tion of Th in2wa lled in P ipe in L ost Foam Ca sting1211 (Sun J ia ju , Yuan Do ngzho u , Gao Xiuq i , Yan J ian jun 1.Yangcheng Huawang Universal Centrifugal Casting Pipe Plant,Yangcheng, China。 2. The Second Plant of Internal CombustionAccessory of Shannxi, Xianyang, China) 2006, 26 (4) 238～239Abstract The formation of thin2walled in cast iron p ipe in lost foam casting was analyzed. The positions of defects were formed mainly in the last solidification location, which results from the inadequate pouring of liquid metal and badly exhaustion of de2 position of the pattern. The thin2walled defects can be elim2 inated by imp roving the fire2resistance of refractory materials, choosing large size silicon sand and controlling the pouring ve2 locity. The results show that the p roduction rate is greatly in2 creased, and the p ipe grade is imp roved.Key W ords: L ost Foam Ca sting, Th in2wa lled D efects, Tube1. 4468 H igh Strength Sta in less Steel w ith Two Pha se in In2vestm en t Ca sting M a Xiao lin ( Shenzhen Kelida PrecisionCasting Co. ,L td. , Shenzhen, China) 2006, 26 (4) 231～233Abstract The chem ical position, m icrostructure, p roperties of 1. 4468 ( German brand ) high strength stainless steel with two phases and its technological features were introduced. Effects of alloying elements in the stainless steel and heat treatment on m icrostructure and mechanical p roperties were analyzed. Larger riser should be set in investment casting to ensure the full feed2 ing for the stainless steel. Deoxidation should be fully conducted during smelting p rocess, and the pouring temperature should be strictly controlled to elim inate some defects including gas holeⅢB i2con ta in ing Free2cutting Bra ss Yan J ing1 , Tang She ngyu2 , L i W e nb in1 , Zhao Zhe n2 , She n B ao luo1 ( 1. Si2 chuan University, Chengdu, China。 2. Sichuan L ight New Mate2 rials Science and Technology Co. ,L td. , Chengdu, China) 2006,169。 19942014 China Academic Journal Electronic Publishing House. All rights reserved.
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