生铁铸件缺陷焊补工艺

• 机 构: 江门汽油机厂,
• 出 处: 科技简报
• 发表日期: 1972年12期
• 关键词: 铸件缺陷 铸造缺陷 工艺规定 冷隔 表面清理 机械加工 发动机缸盖 除油 氧化皮 乙炔气焊

南粤牌发动机缸盖、缸体由 HT21—40灰铸铁铸造,由于铸造缺陷,形状尺寸偏差;机械加工等原因造成超出验收标准所允许的不修补缺陷范围的缺陷时,按本工艺规定进行修补。一、修补前的准备零件修补的部位应进行表面清理,不允许有油污、泥砂、锈蚀、氧化皮等附着物存在(用树脂修补的缺陷需用丙酮仔细除油),对于采用电焊或气焊焊补的孔眼、冷隔、缺肉、

Nanyue brand engine cylinder head and cylinder block are cast by HT21-40 gray cast iron. Due to the defects of casting and shape and size deviation, if the defect that does not repair the defect range beyond the acceptance standard caused by mechanical processing and other reasons, it should be repaired according to the stipulations of this process. First, the preparation before repair Part repair parts should be surface cleaning, does not allow oil, sand, rust, scale and other attachments exist (with resin repair defects need to use acetone carefully degreasing), the use of welding or gas welding Make up the hole, cold, missing meat,