黏结剂对铁基混合粉末性能的影响

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摘要利用自制的黏结剂,采用黏结工艺制备Fe-C、Fe-Cr-C和Fe-Ni-Cu-C等几种铁基混合粉末。用扫描电镜(SEM)观察Fe-Ni-Cu-C混合粉末的形貌与结构,研究黏结剂含量w(黏结剂)对Fe-C混合粉的流动性、松装密度、压缩性能与压坯横向断裂强度等的影响。结果表明,采用黏结混合法制备的Fe-Ni-Cu-C混合粉末,小颗粒大都黏结在大颗粒铁粉表面,可降低粉末成分的偏析。与未添加黏结剂的Fe-C混合粉末相比,w(黏结剂)为0.02%和0.03%时,Fe-C混合粉末的流动性降低,所需压制压力增大,但最大增幅小于6%。未添加黏结剂的Fe-C混合粉生坯强度为12.5MPa,w(黏结剂)为0.03%的Fe-C生坯强度为13.7MPa,固化后达到45.8MPa。利用该工艺制备的Fe-Cr-C双排链轮压坯具有良好的机加工性能,在断续切削时,可保持链轮齿形和加工边缘的完好性。

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	苏凤戈
	郑卓
	陈陆水

关键词 ：水雾化铁粉, 黏结剂, 粉末形貌, 生坯加工, 混合粉

Abstract：Fe-C, Fe-Cr-C, Fe-Ni-Cu-C and other iron-based mixed powders were prepared by bonder-treated process method using self-made binder. Scanning electron microscopy (SEM) was used to observe the morphology and structure of the Fe-Ni-Cu-C mixed powder. The effects of binder content (mass fraction) on the flowability, apparent density, compressibility of Fe-C mixed powder, and on the transverse rupture strength (TRS) of Fe-C greens were studied. The results show that in the Fe-Ni-Cu-C mixed powder prepared by bonder mixing method, most of the small particles are bonded to the surface of the large iron powder, which reduces the segregation of the powder composition. Compared with the Fe-C powder without binder, the flowability of Fe-C mixed powders with 0.02% and 0.03% binder increases, and the required more pressing pressure. But the maximum increase is less than 6%, which is acceptable in actual production. The TRS of Fe-C green without binder is 12.5 MPa, and that with 0.03% binder is 13.7 MPa, and 45.8 MPa after curing. The Fe-Cr-C double row sprocket blank prepared by this process has good machinability, and can keep the integrity of sprocket tooth profile and machining edge under intermittent cutting condition.

Key words： water atomization iron powder binder powder morphology green machining mixed powder

收稿日期: 2020-03-10 出版日期: 2021-01-18

ZTFLH:

TF123.2

通讯作者: 郑卓,高级工程师,博士。电话：13609873924;E-mail: Prenter_cn@163.com

引用本文:

苏凤戈, 郑卓, 陈陆水. 黏结剂对铁基混合粉末性能的影响[J]. 粉末冶金材料科学与工程, 2020, 25(5): 396-402.
SU Fengge, ZHENG Zhuo, CHEN Lushui. Effect of binder on properties of iron based mixed powder. Materials Science and Engineering of Powder Metallurgy, 2020, 25(5): 396-402.

链接本文:

http://pmbjb.csu.edu.cn/CN/ 或 http://pmbjb.csu.edu.cn/CN/Y2020/V25/I5/396

[1] 黄培云. 粉末冶金原理[M]. 北京: 冶金工业出版社, 1974: 1-2.
HUANG Peiyun. Principles of Powder Mmetallurgy[M]. Beijing: Metallurgical Industry Press, 1974: 1-2.
[2] 曾德麟. 粉末冶金材料[M]. 北京: 冶金工业出版社, 1989: 4-5.
ZEGN Delin. Powder Metallurgy Materials[M]. Beijing: Metallurgical Industry Press, 1989: 4-5.
[3] 曲选辉. 粉末冶金原理与工艺[M]. 北京: 冶金工业出版社, 2016: 1-3.
QU Xuanhui. Principle and Process of Powder Metallurgy[M]. Beijing: Metallurgical Industry Press, 2016: 1-3.
[4] 谭兆强, 王辉, 王昊, 等. 采用新型黏结预混粉提高零件生产稳定性[J]. 粉末冶金工业, 2015, 25(1): 54-59.
TAN Zhaoqiang, WANG Hui, WANG Hao, et al. Improve the consistency of components by using an improved bonded mix[J]. Powder Metallurgy Industry, 2015, 25(1): 54-59.
[5] 王雪辉, 候晓旭, 姚雪丽, 等. 黏结剂的粘弹性及其对墨粉性能的影响[J]. 热固性树脂, 2017, 32(4): 62-66.
WANG Xuehui, HOU Xiaoxu, YAO Xueli, et al. Viscoelasticity of binder resin and its effect on the properties of toner[J]. Thermosetting Resin, 2017, 32(4): 62-66.
[6] LIU Tianjun, LEE A, RICK A, 等. 用于常规粉末冶金工艺的生坯切削加工[J]. 粉末冶金技术, 2004, 22(3): 156-160.
LIU Tianjun, LEE Attewell, RICK Armstrong, et al. Green machining for conventional P/M process[J]. Powder Metallurgy Technology, 2004, 22(3): 156-160.
[7] 谢述锋. 黏结剂对高电阻率各向异性黏结NdFeB磁体性能的影响[J]. 材料开发与应用, 2011, 26(4): 38-40.
XIE Shufeng. Binder research for high resistance anisotropic bonded NdFeB[J]. Development and Application of Materials, 2011, 26(4): 38-40.
[8] 胡继东, 孟陶, 周延春. 新型高温黏结剂的制备及性能研究[J]. 宇航材料工艺, 2013, 43(6): 41-44.
HU Jidong, MENG Tao, ZHOU Yanchun. Preparation and performance of high temperature adhesive[J]. Aerospace Materials & Technology, 2013, 43(6): 41-44.
[9] ST-LAURENT S, GELINAS C, GUO R, 等. 用黏结剂处理工艺制备高性能钢粉混合粉[J]. 粉末冶金工业, 2007, 17(1): 1-9.
ST-LAURENT S, GELINAS C, GUO R, et al. Using binder- treatment technology for high performance steel powder mixes [J]. Powder Metallurgy Industry, 2007, 17(1): 1-9.
[10] SCHADE C, MARCCI M, HANEJKO F, 等. 通过用黏结剂处理预混粉改进粉末的使用性能[J]. 粉末冶金工业, 2014, 24(2): 1-6.
SCHADE C, MARCCI M, HANEJKO F, et al. Improved powder performance through binder treatment of premixes[J]. Powder Metallurgy Industry, 2014, 24(2): 1-6.
[11] 郭瑞金. 用黏结剂处理的预合金Mo钢基预混粉取代扩散黏结粉[J]. 粉末冶金技术, 2004, 22(1): 22-25.
GUO Ruijin. Applications of the binder treated Mo-preallloyed premixes as alternatives to diffusion bonded powders[J]. Powder Metallurgy Technology, 2004, 22(1): 22-25.
[12] RUTZ H, HANEJKO F, MILLER T, 等. 用于汽车自动变速器的温压涡轮毂[J]. 粉末冶金工业, 2012, 22(1): 1-15.
RUTZ H, HANEJKO F, MILLER T, et al. The application of warm compaction to high density powder metallurgy parts[J]. Powder Metallurgy Industry, 2012, 22(1): 1-15.
[13] 崔建民, 李松林, 刘世民, 等. 无偏析预混合钢粉研究与开发的进展[J]. 粉末冶金工业, 2007, 17(1): 43-48.
CUI Jianmin, LI Songlin, LIU Shimin, et al. Progress in R & D of non-segregation premixed steel powder[J]. Powder Metallurgy Industry, 2007, 17(1): 43-48.
[14] 林涛, 果世驹, 李明怡, 等. 黏结剂和润滑剂对铁粉流动性和松装密度的影响[J]. 粉末冶金技术, 2000, 18(1): 8-11.
LIN Tao, GUO Shiju, LI Mingyi, et al. Effect of binder and lubricant on flow time and apparent density of iron powder[J]. Powder Metallurgy Technology, 2000, 18(1): 8-11.
[15] 郑卓. 一种简单测量粉末抗扬尘性能的装置: 中国, ZL 201821462094.4[P].2018-09-07.
ZHENG Zhuo. A simple device for measuring dust resistance of powder. China, ZL201821462094.4[P]. 2018-09-07.
[16] HANEJKO F, TAMBUSSI W.先进黏结剂处理的FY4500[J].粉末冶金工业, 2011, 21(3): 24-28.
HANEJKO F, TAMBUSSI W. Advanced binder treated FY-4500 [J]. Powder Metallurgy Industry, 2011, 21(3): 24-28.
[17] 郭瑞金, 王宝飞, ST-LAURENT S, 等. 用黏结剂处理工艺制备高性能预混粉[J]. 粉末冶金工业, 2009, 19(1): 1-5.
GUO Ruijin, WANG Baofei, ST-LAURENT S, et al. Binder treatment technology for high performance steel powder mixes[J]. Powder Metallurgy Industry, 2009, 19(1): 1-5.
[18] 章林, 吕元之, 邵健, 等. 黏结化铁基粉末的高速压制成形与烧结行为研究[J]. 粉末冶金技术, 2012, 30(1): 57-62.
ZHANG Lin, LÜ Yuanzhi, SHAO Jian, et al. Study on high velocity compaction and sintering behaviour of bonding treated ferrous powder[J]. Powder Metallurgy Technology, 2012, 30(1): 57-62.
[19] JAMES W B, SEMEL F J, NARASIMHAN K S.替代扩散合金化粉末的黏结剂处理粉的研制[J]. 粉末冶金工业, 2009, 19(3): 1-5.
JAMES W B, SEMEL F J, NARASIMHAN K S. The development of binder-treated alternatives to diffusion alloyed powders[J]. Powder Metallurgy Industry, 2009, 19(3): 1-5.
[20] 胡美些, 石富. 黏结磁体助剂对模压成型NdFeB黏结磁体性能的影响[J]. 稀土, 2010, 31(4): 33-35.
HU Meixie, SHI Fu. Effects of binderand coupler on the properties of die-upsetting bonded magnet[J]. Chinese Rare Earths, 2010, 31(4): 33-35.
[21] 肖凯业, 许海, 郭志伟, 等. 黏结NdFeB磁体修型工艺研究[J]. 粉末冶金工业, 2019, 29(1): 54-59.
XIAO Kaiye, XU Hai, GUO Zhiwei, et al. Study on patching technology of bonded NdFeB magnet[J]. Powder Metallurgy Industry, 2019, 29(1): 54-59.