发明授权
US3885059A Method for forming a carbide layer of a IV-b group element of the periodic table on the surface of a cemented carbide article
失效
在硬质合金制品的表面上形成周期表的IV-b族元素的碳化物层的方法
- 专利标题： Method for forming a carbide layer of a IV-b group element of the periodic table on the surface of a cemented carbide article
- 专利标题（中）： 在硬质合金制品的表面上形成周期表的IV-b族元素的碳化物层的方法
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申请号： US46014874申请日： 1974-04-11
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公开(公告)号： US3885059A公开(公告)日： 1975-05-20
- 发明人: KOMATSU NOBORU , ARAI TOHRU , SUGIMOTO YOSHIHIKO , MIZUTANI MASAYOSHI
- 申请人： TOYODA CHUO KENKYUSHO KK
- 专利权人： Toyoda Chuo Kenkyusho Kk
- 当前专利权人： Toyoda Chuo Kenkyusho Kk
- 优先权： JP4082173 1973-04-12
- 主分类号： B22F3/24
- IPC分类号： B22F3/24 ; C23C10/24 ; C23C22/70 ; C23C30/00 ; C23F7/00 ; B44D5/12
摘要：
A method for forming a carbide layer of a IV-b group element of the periodic table on the surface of a cemented carbide article in a treating molten bath, comprising preparing a treating molten bath composed of molten boric acid or borate and a IV-b group element dissolved therein and immersing the article in the treating molten bath to deposit the IV-b group element on the surface of the article and to form a carbide layer of the IV-b group element on the surface of the article with the carbon contained in the article. The method of this invention can form easily a smooth and hard carbide layer on the surface of the article. And the formed layer improves greatly the hardness and wear resistance of the cemented carbide article.
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