铸铁棒材水平连铸技术开发成功

• 作 者: 劳回
• 出 处: 上海金属(钢铁分册)
• 发表日期: 1988年04期
• 关键词: 水平连铸 砂型铸造 铸造缺陷 切削加工性能 尺寸精度 技术开发 陕西机械学院 工艺合理 攻关项目 特种合金

铸铁棒材的水平连铸与砂型铸造相比,有明显的优越性:1.棒材表面光洁,尺寸精度高,无型砂造成的铸造缺陷;2.棒材组织细而致密;3.铁水利用率高,可达95％左右;4.同牌号的铸铁,连铸棒材的硬度低,切削加工性能好,而抗拉强度却比铸造的高1～2个牌号。

Compared with sand casting, the horizontal continuous casting of cast iron bar has obvious advantages: 1. The surface of the bar is smooth, the dimension precision is high, casting defects caused by no sand; 2. The bar is dense and dense; 3. The utilization of hot metal High rate, up to about 95%; 4. The same grade of cast iron, continuous casting bar hardness, cutting performance, but the tensile strength is higher than the casting of 1 or 2 grades.