Invention Grant
- Patent Title: Procedure for manufacturing cutting material of superior toughness
- Patent Title (中): 制造超级韧性切割材料的程序
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Application No.: US834809Application Date: 1992-02-13
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Publication No.: US5225009APublication Date: 1993-07-06
- Inventor: Yousuke Orikasa , Masahiro Yokomizo , Sadao Shimizu , Yukio Kawaoka , Kenji Kaneko , Hiro Ohzeki
- Applicant: Yousuke Orikasa , Masahiro Yokomizo , Sadao Shimizu , Yukio Kawaoka , Kenji Kaneko , Hiro Ohzeki
- Applicant Address: JPX Tokyo
- Assignee: Mitsubishi Materials Corporation
- Current Assignee: Mitsubishi Materials Corporation
- Current Assignee Address: JPX Tokyo
- Priority: JPX3-045889 19910218
- Main IPC: C22C19/05
- IPC: C22C19/05 ; C22F1/10
Abstract:
The object of the present invention is to provide a method for the manufacturing of a cutting material possessing excellent toughness and a high strength. The composition by weight of the Nickel alloy ingot, is chromium (Cr )14-23%, molybdenum (Mo) 14-20%, tungsten (W) 0.2-5%, iron (Fe) 0.2-7%, cobalt (Co) 0.2-2.5% with the remaining portion being made up of Ni and unavoidable impurities. After undergoing a solution heat treatment process, the Ni ingot undergoes plastic working, at a product ratio above 80%, followed by heating at a temperature of 500.degree.-600.degree. C. for longer than 30 minutes. Heating the alloy of the aforementioned composition at the above mentioned temperature promotes the precipitation of an intermetallic compound possessing a hardness greater than 57 on the HRC. The resulting superior cutting material is resistant to corrosion even when exposed to sea water. The cutting material obtained through the process of the present invention provides a high resistance to both rust and chipping in addition to a high abrasion resistance, all of which are advantages over the conventional stainless steel cutting material.
Public/Granted literature
- US5983276A Acknowledgement tracking and automatic faxing system of EDI transactions on the internet Public/Granted day:1999-11-09
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