发明授权
- 专利标题: Alloy coating for wet and high temperature pressing roll
- 专利标题(中): 用于湿和高温压辊的合金涂层
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申请号: US488988申请日: 1995-06-08
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公开(公告)号: US5632861A公开(公告)日: 1997-05-27
- 发明人: Jere W. Crouse
- 申请人: Jere W. Crouse
- 申请人地址: DE Wilmington
- 专利权人: Beloit Technologies, Inc.
- 当前专利权人: Beloit Technologies, Inc.
- 当前专利权人地址: DE Wilmington
- 主分类号: C23C4/08
- IPC分类号: C23C4/08 ; C22C30/02 ; C22C38/00 ; C22C38/12 ; C22C38/16 ; C22C38/54 ; C23C4/18 ; D21F3/08 ; C22C38/22
摘要:
A high temperature pressing roll has a cast or formed steel roll which is coated with a molybdenum-containing alloy. The preferred alloy has 14 to 16 percent molybdenum, 28 to 30 percent nickel, 30 to 34 percent chromium, 1.2 to 1.8 percent silicon, 4 to 4.5 percent boron, a maximum of 0.2 percent carbon and copper between 3 and 3.8 percent with the balance being iron. The roll is first coated with a bonding coating consisting of nickel and chromium. This bonding layer is then flame sprayed or plasma sprayed with a molybdenum alloy. The coating once applied is ground to a 30 RA or smoother surface. The molybdenum alloy is sprayed on to achieve a surface depth of approximately forty thousandths of an inch.
公开/授权文献
- US4480589A Safety collar device 公开/授权日:1984-11-06