共沉淀法制备超细Cu-Fe-Sn-Ni铜基预合金粉及其烧结胎体的抗弯强度

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (472 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要以CuCl₂·2H₂O、FeCl₂·4H₂O、SnCl₂·2H₂O和NiCl₂·6H₂O为原料,用H₂C₂O₄·2H₂O作为沉淀剂,采用共沉淀法制备Cu-Fe-Sn-Ni四元铜基预合金粉,并用真空热压法制备Cu-Fe-Sn-Ni铜基胎体结块和胎体/金刚石结块。研究加料顺序、溶液pH值、陈化时间、反应温度和混合金属盐溶液的浓度对前躯体粉末粒度的影响,优化工艺参数。用X 射线衍射仪和扫描电镜分析粉末的物相和形貌,并与采用混合单质粉末制备的节块抗弯强度进行对比。结果表明：共沉淀法制备Cu-Fe-Sn-Ni四元铜基预合金粉的最佳工艺为采用并加的加料方式、陈化时间为40 min、反应温度为50 ℃以及混合金属盐溶浓度为1.0 mol/L。前驱体粉体经过煅烧和氢气还原后,得到粒度约为500 nm 的超细Cu- Fe-Sn-Ni四元铜基预合金粉,热压后的胎体抗弯强度达到1 302 MPa,胎体/金刚石结块的抗弯强度为853 MPa,高于采用混合单质粉末制备的铜基胎体结块和胎体/金刚石结块抗弯强度(分别为992.5和 782.5 MPa)。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	肖长江
	窦志强

关键词 ：共沉淀法, Cu-Fe-Sn-Ni, 预合金粉, 晶粒尺寸, 抗弯强度

Abstract：Using CuCl₂·2H₂O, FeCl₂·4H₂O, SnCl₂·2H₂O and NiCl₂·6H₂O as raw materials, H₂C₂O₄·2H₂O solution as precipitator, Cu-Fe-Sn-Ni quaternary Cu-based pre-alloyed powder was fabricated by co-precipitation method. The sintered Cu-Fe-Sn-Ni cupric carcass and the carcass/diamond caking were prepared through hot pressing processes. The effects of charging sequence, pH value, aging time, co-precipitation temperature and solution concentration on the particle size of precursor powders were investigated. The phase composition and morphology of the powder were characterized by X-ray diffraction (XRD) and scanning electronic microscope (SEM). Moreover, the flexural strength of Cu-Fe-Sn-Ni quaternary pre-alloyed powder was tested, which was compared with that of the samples that was prepared by mixing the four kinds of elemental powders. The results show the optimal process of Cu-Fe-Sn-Ni pre-alloyed powder is a parallel-flow charging sequence, co-precipitation temperature of 50 ℃, aging time of 40 min and solution concentration of 1 mol/L. The ultrafine Cu-Fe-Sn-Ni pre-alloyed powder with particle size of about 500 nm can be obtained by calcining and hydrogen reducing the precursor powder. The flexural strength of the matrix is 1 302 MPa and the carcass/diamond caking is 853 MPa after hot pressing.

Key words： co-precipitation Cu-Fe-Sn-Ni pre-alloyed powder particle size flexural strength

收稿日期: 2017-10-23 出版日期: 2019-07-12

ZTFLH:

TB131.2

基金资助:郑州市科技局自然科学项目(20150246)

通讯作者: 肖长江,副教授,博士。电话：0371-67758729;E-mail: cjxiao@haut.edu.cn

引用本文:

肖长江, 窦志强. 共沉淀法制备超细Cu-Fe-Sn-Ni铜基预合金粉及其烧结胎体的抗弯强度[J]. 粉末冶金材料科学与工程, 2018, 23(3): 246-251.
XIAO Changjiang, DOU Zhiqiang. Preparation of ultrafine Cu-Fe-Sn-Ni Cu-matrixbonded pre-alloyed powder by co-precipitation method and its flexural strength of sintered matrix. Materials Science and Engineering of Powder Metallurgy, 2018, 23(3): 246-251.

链接本文:

http://pmbjb.csu.edu.cn/CN/ 或 http://pmbjb.csu.edu.cn/CN/Y2018/V23/I3/246

[1] 王明智. 金刚石工具制造技术的发展与热点问题[J]. 超硬材料工程, 2011, 23(5): 37-41.
WANG Mingzhi.Development of diamond manufacturing technology & relevant hot issues[J]. Super Hard Material Engineering, 2011, 23(5): 37-41.
[2] KAMPHUIS B, SARNIES A.Cobalt and nickel free bond powder for diamond tools: Cobalite® CNF[J]. Industrial Diamond Review, 2004, 64(1): 26-27.
[3] KARLSSON H, NYBERG L, BERG S.Surface chemical analysis of pre-alloyed water atomized steel powder[J]. Powder Metallurgy, 2005, 48(1): 51-58.
[4] CLARK I E, KAMPGUIS B J.Cobalite HDR-A new prealloyed matrix powder for diamond construction tools[J]. Industrial Diamond Review, 2002, 62: 177-182.
[5] 张绍和, 丁星妤, 杨仙. 预合金粉末在切割花岗岩锯片生产中的应用研究[J]. 粉末冶金技术, 2007, 25(2): 117-120.
ZHANG Shaohe, DING Xingyu, YANG Xian.Application of prealloyed powders used in production of diamond saw blade cutting granite[J]. Powder Metallurgy Technology, 2007, 25(2): 117-120.
[6] 刘一波, 徐强, 徐良. 金刚石工具用金属粉末的特性、现状分析和发展趋势[J]. 粉末冶金工业, 2017, 27(4): 1-6.
LIU Yibo, XU Qiang, XU Liang.Characteristics, status analysis and development trend of metal powders for diamond tools[J]. Powder Metallurgy Industry, 2017, 27(4): 1-6.
[7] 余勇, 黄圣坤, 曾归余. 金刚石工具用预合金粉末生产现状及发展趋势[J]. 金属材料与冶金工程, 2010, 38(5): 49-53.
YU Yong, HUANG Shengkun, ZENG Guiyu.The production status quo and development tendency of pre-alloy powder used for diamond tools[J]. Metal Materials and Metallurgy Engineering, 2010, 38(5): 49-53.
[8] 赵文东, 徐骏, 宋月清, 等. 共沉淀-共还原法制备金刚石工具用超细预合金粉末的研究[J]. 粉末冶金技术, 2010, 28(2): 130-135.
ZHAO Wendong, XU Jun, SONG Yueqing, et al.Study on superfine pre-alloying powder for diamond tools by Co-precipitation-decomposition method[J]. Powder Metallurgy Technology, 2010, 28(2): 130-135.
[9] 谢德龙, 万隆, 刘志环. 共沉淀法制备Fe-Cu基预合金粉的低温热压烧结[J]. 粉末冶金材料科学与工程, 2015, 20(1): 93-98.
XIE Delong, WAN Long, LIU Zhihuan.Low-temperature hot press sintering of Fe-Cu based pre-alloyed powder manufactured by co-precipitation method[J]. Materials Science and Engineering of Powder Metallurgy, 2015, 20(1): 93-98.
[10] 向波, 贺跃辉, 谢志刚. 共沉淀-热分解法制备金刚石工具用预合金粉[J]. 粉末冶金技术, 2008, 26(1): 44-48.
XIANG Bo, HE Yuehui, XIE Zhigang.Preparation of prealloyed powder for diamond tools by coprecipitation-thermal decomposition method[J]. Powder Metallurgy Technology, 2008, 26(1): 44-48.
[11] 黄蓉, 陈仕奇. 草酸盐共沉淀法制备Cu-Sn预合金粉末[J]. 粉末冶金材料科学与工程, 2010, 15(5): 525-529.
HUANG Rong, CHEN Shiqi.Preparation of Cu-Sn prealloyed powder by oxalate co-precipitation method[J]. Materials Science and Engineering of Powder Metallurgy, 2010, 15(5): 525-529.
[12] CHU Z Q, GUO X Y, LIU D H, et al.Application of pre-alloyed powders for diamond tools by ultrahigh pressure water atomization[J]. Transactions of Nonferrous Metals Society of China, 2016, 26(10): 2665.
[13] 田峰, 李国彬, 高明亮, 等. 金刚石胎体Cu-Fe-Sn-Ce预合金粉的研究[J]. 金刚石与磨料磨具工程, 2008, 136(1): 39-43.
TIAN Feng, LI Guobin, GAO Mingliang, et al.Investigation on Cu-Fe-Sn-Ce pre-alloy powders of diamond matrix[J]. Diamond & Abrasives Engineering, 2008, 136(1): 39-43.
[14] 吴颖, 蒲飞, 张小安, 等. 新型铜基结合剂金刚石锯片组织和性能的研究[J]. 西昌学院学报: 自然科学版, 2016, 30(2): 33-35.
WU Ying, PU Fei, ZHANG Xiaoan, et al.Study on microstructure and properties of new copper-matrix bonding diamond saw-blade[J]. Journal of Xichang College: Natural Science Edition, 2016, 30(2): 33-35.