通辽砂用于铸钢车轮生产  

Application of Tongliao Sand in Steel Casting Wheel Production

作　　者：胡长岭 杨召利 HU Chang-ling;YANG Zhao-li(Xinyang Tonghe Wheel Co.,Ltd.,Xinyang 464100,Henan,China)

机构地区：[1]信阳同合车轮有限公司,河南信阳464100

出　　处：《铸造》2021年第11期1350-1355,共6页Foundry

摘　　要：使用通辽砂时易出现水纹类废品,造成铸件废品率高。通辽砂有角形因数小、堆密度大、水玻璃粘结剂用量少、车轮粘砂轻的优点,但也有透气性差、砂衬导热快、易产生车轮水纹类废品的缺点。对通辽砂的粒度、与在用砂的混合配比进行了反复试验。结果表明,加粗粒度通辽砂,按50%的比例与在用砂混合使用,抗车轮粘砂效果较好,废品率与在用砂相近。When Tongliao sand is used,water mark defects of castings are easy to appear,leading to a high casting waste rate.The Tongliao sand has the advantages of small angle factor,high bulk density,low dosage of sodium silicate binder and light wheel burning on,but it also has the disadvantages of poor permeability,fast thermal conductivity of sand lining,and is easy to produce the water mark defects of the wheel waste.Repeated tests were carried out on the particle size of the Tongliao sand and its mixing ratio with the sand in use.The results show that the coarse-grained Tongliao sand is mixed with the in use sand at a ratio of 50%,and the anti-wheel burning on effect is better,and the reject rate is similar to that of the in-use sand.

关 键 词：铸钢车轮 通辽砂 角形因数 水纹 配比 粘砂 废品率 

分 类 号：TG221[金属学及工艺—铸造]