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Bronze casting technology


Is a liquid filling waves are moving forward, filling the middle filling fast. Filling stage, lower the temperature and pressure increases, the filling speed dropped. References: fl1 Wuxian Ming, Wu Wigan. Lost foam casting Al-Si Alloy and Mechanical Properties [J]. Foundry, 2007,56 (4) :369-371. 【2】 Maogao Bo, RAO group of chapters, Cheng poetry frames. Iron alloy vacuum EPC performance liquid filling and influencing factors [J] _ Special Casting & Nonferrous Alloys,[link widoczny dla zalogowanych], 1997, (2): 31.35. 【3】 NG and Paul, Fan Zitian, Huang Naiyu, et al. Magnesium Alloy Low Pressure Casting of liquid [J]. Special Casting & Nonferrous Alloys, 2007,27 (3): 177 for a l79. [4】 ZHU Li-juan, Dude Xi, Dong Xiuqi, et al. EPC casting system of choice [J]. Foundry, 2006,55 (12) :1319-1321. [5】 Yuanzi Zhou, Kuang Yi. Lost foam casting process of heat transfer and mass transfer Ⅲ. Lan thirty I University of Technology,[link widoczny dla zalogowanych], 2004,30 (6) :23-26. [6] Feng Xiaoming, Guo from Sheng, Wang Ran,[link widoczny dla zalogowanych], et al. Aluminum Alloy Castings Lost Foam Casting of Gating System [J】. Special Casting & Nonferrous Alloys, 2005,25 (12) :751-752. Tin (Continued from page 5, including low or high hardness, fatigue, or Jia Chili instability. Remedial measures include: strict accordance with the technical requirements,[link widoczny dla zalogowanych], strengthening the material storage inspection. Instrument to be calibrated on schedule. Strict control of cold deformation (deformation should not exceed 2O%); high hardness after solution treatment can be reprocessed, but not more than 3 times: aging hardness is too high, re-treatment with the solution or increasing aging temperature. Appropriate ways to reduce over time. 4 Conclusion bronze casting production by the equipment,[link widoczny dla zalogowanych], technology, raw materials, heat treatment, and many other factors. As long as total quality management to enhance and strengthen were plant materials, carefully melting and heat treatment operations, to optimize to improve the technological level, prevention-oriented, we can continuously improve the quality of bronze castings. Tin (Continued from page 62) to become the means of industrial production and full of vitality. Directional solidification from the history of technological development, technological development directional solidification is directional solidification temperature gradient and solidification rate increasing history. Undercooling directional solidification technology, electromagnetic confinement and shaping directional solidification technology and ultra-high temperature gradient of laser rapid solidification technology has broad application prospects, with the improvement of experimental techniques and theoretical research, the new generation of directional solidification technology is bound to Preparation of new materials and new processing technologies to provide broad prospects. Solidification theory will also promote further improvement and development. References: [1] Hengzhi. High-temperature alloys and steel smelting and casting [M]. Xi'an: Northwest Industry University Press, 1985. [2] Chang Guo Wei, Wang Jianzhong. Solidification process of crystal growth and control [M]. Beijing: Metallurgical Industry Press. 2002. [3】 Gu Lin Yu. Superalloy directional solidification dendrite arm spacing and cooling rate relationship [JJ. Xi'an Institute of Technology, 1999,19 (2) :63-66. [4】 Li Jianguo, Mao Xiemin, Fu Heng, et al. AI-Cu alloy during high-gradient directional solidification morphology change [J】. Materials Research, 1991,5 (6) :461-465. [5】 Yeung Sum, Huang Weidong. Ultra-high temperature gradient directional solidification rapid cell spacing CuMn alloys [J]. Chinese Journal of Nonferrous Metals, 2001, (s2) :243-247. I6】 ZhangJun, TanYanying, LiShuanmin, eta1. Thefrequencyeffectonelectromagneticconfinementandshapingofliquidmetal 【J]. ScienceandTechnologyofAdvancedMaterials, 2001, (2) :205-208. [7] LiaoShijie, HanYafang. Astuayoftheheatparameters, duringbidirectionalsolidification [J】. ScienceandTechnol-ogyofAdvancedMaterials, 2001, (2) :281-284. Tin \
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