价值工程
價值工程
개치공정
VALUE ENGINEERING
2013年
9期
32-33
,共2页
缩松缺陷%硬度偏低%工艺调整%质量控制
縮鬆缺陷%硬度偏低%工藝調整%質量控製
축송결함%경도편저%공예조정%질량공제
shrinkage defects%hardness low%process adjustments%qquality control
针对Perkins4100缸体铸件的厚大部位存在缩陷、铸件本体硬度偏低(HB 170—190)等质量问题,通过对原材料进行控制和优化选择,加强双联熔炼铁液质量的控制,调整优化熔炼工艺(调整C、Si量,优化Cr-Cu-Sn合金加入量,调整浇注温度,改进炉前孕育工艺),采用炉前快速检测技术,加强铸件本体质量检测等措施使Perkins4100缸体铸件硬度满足了要求,解决了厚大部位的缩松缺陷.
針對Perkins4100缸體鑄件的厚大部位存在縮陷、鑄件本體硬度偏低(HB 170—190)等質量問題,通過對原材料進行控製和優化選擇,加彊雙聯鎔煉鐵液質量的控製,調整優化鎔煉工藝(調整C、Si量,優化Cr-Cu-Sn閤金加入量,調整澆註溫度,改進爐前孕育工藝),採用爐前快速檢測技術,加彊鑄件本體質量檢測等措施使Perkins4100缸體鑄件硬度滿足瞭要求,解決瞭厚大部位的縮鬆缺陷.
침대Perkins4100항체주건적후대부위존재축함、주건본체경도편저(HB 170—190)등질량문제,통과대원재료진행공제화우화선택,가강쌍련용련철액질량적공제,조정우화용련공예(조정C、Si량,우화Cr-Cu-Sn합금가입량,조정요주온도,개진로전잉육공예),채용로전쾌속검측기술,가강주건본체질량검측등조시사Perkins4100항체주건경도만족료요구,해결료후대부위적축송결함.
Aiming at shrinkage, low casting body hardness (HB 170-190) and other quality problems in thick part of Perkins4100 cylinder casting, through the control and optimized selection of raw materials, strengthening the control of the duplex melting liquid iron quality, adjusting and optimize smelting process (adjusting C, Si content, optimizing Cr-Cu-Sn alloy amount, adjusting the pouring temperature, improving blast furnace inoculation process), adopting front furnace rapid detection technology, strengthening the quality of the casting body detection and other measures to make Perkins4100 cylinder block casting hardnessto meet the requirements, and solve shrinkage defects of thick parts.
