Study on RE Lon Nitro-carbnrizing Used for 4Cr5MoSiVl Casting Mold
-
摘要: 研究了在4%RE、520℃×2 h、1.05 kPa气压工艺参数下对4Cr5MoSiVl钢进行了稀土离子氮碳共渗工艺试验。多项性能检测结果表明:添加适量稀土的4Cr5MoSiVl钢离子氮碳共渗层的表面硬度、耐磨性能、高温抗氧化性、冷热疲劳性能以及耐腐蚀性能都有显著的提高。4Cr5MoSiVl钢制汽车车灯座铝合金压铸模用该工艺处理后,完全能满足其使用性能要求,其使用寿命可提高3～4倍。Abstract: This paper studies the RE Ion nitro-carbonizing technology for the 4Cr5MoSiVl steel surface treatment by using 4%RE,520 ℃×2h and 1.05 kPa atmospheric pressure.Performance test results of the 4Cr5MoSiVl steel treated layer show that the optimization of these parameters makes the surface hardness,wear resistance,high temperature oxidation resistance,thermal fatigue properties and corrosion resistance to be significantly improved.Another test with using this technology has been done for the 4Cr5MoSiVl steel automotive lamp aluminum casting mold.The experimental results show that the treated layer has optimal qualities,which can meet the requirements in practice and its service life can be increased by 3 to 4 times.
-
[1] 董显明,李鹏吴,张洪发. 提高压铸模具使用寿命的有效途径[J].特种铸造及有色合金,2002,(01):18-2l. [2] 李显玉,刘志杰,陈晓辉. 模具材料H13的表面强化研究[J].模具制造,2007,(04):27-30. [3] 廖西平. 压铸模的表面强化技术[J].重庆工商大学学报,2007,(04):22-25. [4] 耿鑫明. 压铸模生产现状及发展趋势[J].金属加工(热加工),2008,(03):13-16. [5] 燕来生,王彩玲. 提高3C-W8V钢压铸模具寿命的热处理工艺研究[J].兵器材料科学与工程,1998,(06):13-16. [6] 陈方生,高致远. 稀土对38CrMoAl钢离子渗氮层结构和性能的影响[J].钢铁,2000,(08):48-50. [7] 袁泽喜. 钢中稀土对表面渗氮的促进作用[J].中国稀土学报,1999,(17):42-45. [8] 尹付成,洪振声. 稀上对模具钢低温氮碳共渗层性能的影响[J].2000,(01):17-19. [9] 钟华仁. 钢的稀土化学热处理[M].北京:国防工业出版社,1998. -
点击查看大图
计量
- 文章访问数: 114
- HTML全文浏览量: 9
- PDF下载量: 4
- 被引次数: 0
下载:
