型(芯)树脂砂温湿度环境对发气性的影响  

Effects of Temperature-humidity on Gas Evolution of Molding(core) Resin Sand

作　　者：许荣福[1] 孙清洲[1] 单保香 李冰 XU Rongfu1, SUN Qingzhou1, SHAN Baoxiang1, LI Bing2(1. School of Materials Science and Engineering, Shandong Jianzhu University, Ji＇nan 250101, China; 2. School of Automotive Engineering, Weifang Vocational College, Weifang 261041, China)

机构地区：[1]山东建筑大学材料科学与工程学院,山东济南250101 [2]潍坊职业学院汽车工程学院,山东潍坊261041

出　　处：《铸造技术》2018年第10期2227-2230,共4页Foundry Technology

基　　金：山东建筑大学博士基金(XNBS1430)

摘　　要：以生产中常用的碱性酚醛树脂砂、自硬呋喃树脂砂、冷芯盒砂及热芯盒砂为研究对象,对这些型(芯)树脂砂在不同温湿度存放环境下的发气性影响进行实验研究。结果表明,高温高湿(35℃90RH%)的环境条件对树脂砂芯存放影响较大,在这种环境条件下较长时间存放的有机粘结剂型(芯)砂的发气量和发气速度较大,制备的碱性酚醛树脂砂存放4天的发气性数值最大,而制备的冷芯盒、热芯盒及自硬呋喃树脂砂等3种型(芯)砂在高温高湿环境条件下存放24 h的发气量较大。Based on the basic alkaline phenolic resin sand, self-hard furan resin sand, cold core box sand and hot core box sand used in production, the influence of gas generation of these kinds of molding （core） resin sand in different temperature and humidity storage environment was studied experimentally. The results show that the high temperature and high humidity （35 ℃ 90RH%） had a greater influence on the environmental conditions on the resin sand core storage, under such environmental conditions, the gas volume and gas velocity of organic binder type （core） sand stored for a long time are large. The prepared alkaline phenolic resin sand has the highest gas generation value in 4 days. The three types of sand （core）, such as cold core box, hot core box and self-hard furan resin sand, the amount Of gas released for 24 hours is large in high temperature and humidity environment.

关 键 词：型(芯)砂 温湿度 发气性 

分 类 号：TG221[金属学及工艺—铸造]