铸造工程
鑄造工程
주조공정
FOUNDRY ENGINEERING
2012年
2期
33-35,42
,共4页
低合金钢铸件%铸造工艺%顺序凝固%浇注系统
低閤金鋼鑄件%鑄造工藝%順序凝固%澆註繫統
저합금강주건%주조공예%순서응고%요주계통
low alloy steel casting%casting process%directional solidification%gating system
分析了低合金钢齿轮铸件原工艺存在的问题，通过改进工艺方案，合理设计浇注系统、冒口及其补贴，实现顺序凝固；通过加强质量控制，包括热节部位采用铬铁矿砂，砂芯内部采用石灰石砂，热割冒口等工艺措施，成功地获得了表面质量良好的齿轮铸件。
分析瞭低閤金鋼齒輪鑄件原工藝存在的問題，通過改進工藝方案，閤理設計澆註繫統、冒口及其補貼，實現順序凝固；通過加彊質量控製，包括熱節部位採用鉻鐵礦砂，砂芯內部採用石灰石砂，熱割冒口等工藝措施，成功地穫得瞭錶麵質量良好的齒輪鑄件。
분석료저합금강치륜주건원공예존재적문제，통과개진공예방안，합리설계요주계통、모구급기보첩，실현순서응고；통과가강질량공제，포괄열절부위채용락철광사，사심내부채용석회석사，열할모구등공예조시，성공지획득료표면질량량호적치륜주건。
The problems on original process of low alloy steel gear were analyzed. Based on rational design for gating system, risers and pad, the casting process was improved to realize directional solidification. The gear castings with better surface quality were obtained by strengthening quality control, including the hot spot with chromite sand, the core center with limestone sand and hot cutting risers.
