精密铸造0Cr17Ni4Cu3Nb不锈钢航空发动机零件
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摘要
基于数值模拟分析技术,采用正交试验和试验验证对熔模铸造ZG0Cr17Ni4Cu3Nb不锈钢航空发动机尾部搭接件中的缩孔进行了分析,研究了浇注温度、浇注速度和铸型温度对缩孔体积的影响。结果发现,浇注温度对铸件缩孔影响最大,其次是型壳温度。结合数值模拟对该铸件的浇注系统进行了优化。通过实际浇注试验对模拟结果进行验证,并试制出了合格的铸件。优化后的工艺方案:左右两侧的内浇口对称布置,浇注温度为1 560℃、浇注速度为320mm·s~(-1)、型壳温度为920℃。
Based on the numerical simulation analysis,the shrinkage porosities in ZG0Cr17Ni4Cu3Nb alloy parts for tail lap part of aircraft engine,which was manufactured by investment casting,were investigated by the orthogonal experiment method and trial.The effects of the main process parameters,such as pouring temperature,casting speed and mold temperature,on probability of shrinkage volume were expounded.And the influence of various process parameters on shrinkage porosities was described.The results reveal that the pouring temperature has the largest effect and the second is the mold temperature.Combined with numerical simulation,the design of the gating system was also optimized.The reliability of the simulation results was verified through trial-production,and the qualified castings were produced sucessfully.The optimized process parameters are presented as follow:the symmetry arrangement of the inner gate on both sides,pouring temperature of 1 560℃,pouring rate of 320 mm·s~(-1) and mold temperature of 920 ℃.
Based on the numerical simulation analysis,the shrinkage porosities in ZG0Cr17Ni4Cu3Nb alloy parts for tail lap part of aircraft engine,which was manufactured by investment casting,were investigated by the orthogonal experiment method and trial.The effects of the main process parameters,such as pouring temperature,casting speed and mold temperature,on probability of shrinkage volume were expounded.And the influence of various process parameters on shrinkage porosities was described.The results reveal that the pouring temperature has the largest effect and the second is the mold temperature.Combined with numerical simulation,the design of the gating system was also optimized.The reliability of the simulation results was verified through trial-production,and the qualified castings were produced sucessfully.The optimized process parameters are presented as follow:the symmetry arrangement of the inner gate on both sides,pouring temperature of 1 560℃,pouring rate of 320 mm·s~(-1) and mold temperature of 920 ℃.
引文
[1]王瀚霄,白冰,张长义,等.核电阀杆材料17-4PH不锈钢服役不同时间的组织性能分析[J].核科学与工程,2018,38(2):318-325.
[2]马玉峰.17-4PH不锈钢热变形行为研究[D].江苏镇江:江苏大学,2017.
[3]王剑星.Ni含量对0Cr17Ni4Cu4Nb不锈钢组织与性能的影响[D].重庆:重庆大学,2010.
[4]杨胜男,吴文云,汪东红,等.大型不锈钢球阀熔模铸造工艺优化[J].特种铸造及有色合金,2016,36(6):623-625.
[5]赵健,衣春雷.复杂不锈钢叶轮熔模铸造工艺的优化[J].材料研究学报,2015,29(12):955-960.
[6]武厚军,张亦杰.基于仿真的熔模铸造不锈钢铸件浇注系统优化[J].铸造技术,2015,36(4):985-988.
[7]何中全.不锈钢熔模精密铸造缩松解决经验[J].现代制造技术与装备,2017(2):110-111.
[8]陈凯,汪东红,刘淑梅,等.整体精铸不锈钢涡管熔模铸造工艺优化[J].特种铸造及有色合金,2016,36(9):972-974.
[9]张晓光,韦洲.不锈钢多管接头铸件的熔模铸造工艺数值模拟[J].特种铸造及有色合金,2017,37(12):1 344-1 346.
[10]陆伟,孙锦玉.复杂壳体熔模铸造工艺数值模拟与优化控制[J].铸造技术,2017,38(8):2 045-2 048.
[11]李笑然,王俊勃,刘江南,等.熔模铸造多孔薄壁00Cr18Ni10N不锈钢数值模拟[J].特种铸造及有色合金,2016,36(9):966-968.
[12]翟爱群,杨钢,蔡梅,等.0Crl7Ni4Cu4Nb沉淀硬化不锈钢锻造裂纹分析[J].特钢技术,2012,18(2):5-9.
[13]翟爱群,杨钢,蔡梅,等.0Cr17Ni4Cu4Nb不锈钢的力学性能影响因素分析[J].金属热处理,2017,42(8):172-175.
[14]王剑星,杨钢,张忠模,等.Cu含量对马氏体沉淀硬化不锈钢0Cr17Ni4Cu4Nb组织和性能的影响[J].特殊钢,2017(3):66-69.
[15]WANG Y,WU S P,NIU L J,et al.Optimization of low-pressure die casting process parameters for reduction of[J].Journal of Engineering Manufacture,2014,B228(11):1 508-1 514.
[16]文学峰,王晔,牛连杰,等.铝合金CSP工艺设计及品质优化[J].特种铸造及有色合金,2016,36(8):863-867.
[2]马玉峰.17-4PH不锈钢热变形行为研究[D].江苏镇江:江苏大学,2017.
[3]王剑星.Ni含量对0Cr17Ni4Cu4Nb不锈钢组织与性能的影响[D].重庆:重庆大学,2010.
[4]杨胜男,吴文云,汪东红,等.大型不锈钢球阀熔模铸造工艺优化[J].特种铸造及有色合金,2016,36(6):623-625.
[5]赵健,衣春雷.复杂不锈钢叶轮熔模铸造工艺的优化[J].材料研究学报,2015,29(12):955-960.
[6]武厚军,张亦杰.基于仿真的熔模铸造不锈钢铸件浇注系统优化[J].铸造技术,2015,36(4):985-988.
[7]何中全.不锈钢熔模精密铸造缩松解决经验[J].现代制造技术与装备,2017(2):110-111.
[8]陈凯,汪东红,刘淑梅,等.整体精铸不锈钢涡管熔模铸造工艺优化[J].特种铸造及有色合金,2016,36(9):972-974.
[9]张晓光,韦洲.不锈钢多管接头铸件的熔模铸造工艺数值模拟[J].特种铸造及有色合金,2017,37(12):1 344-1 346.
[10]陆伟,孙锦玉.复杂壳体熔模铸造工艺数值模拟与优化控制[J].铸造技术,2017,38(8):2 045-2 048.
[11]李笑然,王俊勃,刘江南,等.熔模铸造多孔薄壁00Cr18Ni10N不锈钢数值模拟[J].特种铸造及有色合金,2016,36(9):966-968.
[12]翟爱群,杨钢,蔡梅,等.0Crl7Ni4Cu4Nb沉淀硬化不锈钢锻造裂纹分析[J].特钢技术,2012,18(2):5-9.
[13]翟爱群,杨钢,蔡梅,等.0Cr17Ni4Cu4Nb不锈钢的力学性能影响因素分析[J].金属热处理,2017,42(8):172-175.
[14]王剑星,杨钢,张忠模,等.Cu含量对马氏体沉淀硬化不锈钢0Cr17Ni4Cu4Nb组织和性能的影响[J].特殊钢,2017(3):66-69.
[15]WANG Y,WU S P,NIU L J,et al.Optimization of low-pressure die casting process parameters for reduction of[J].Journal of Engineering Manufacture,2014,B228(11):1 508-1 514.
[16]文学峰,王晔,牛连杰,等.铝合金CSP工艺设计及品质优化[J].特种铸造及有色合金,2016,36(8):863-867.