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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0724990 (1985-04-18) |
우선권정보 | CH-0001969 (1984-04-19) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 16 인용 특허 : 2 |
To manufacture tubes having a wear-resistant inside coating, such as gun barrels, hard material layers are deposited on the barrel and the layers are strain-hardened in their surface area by at least the ratio of the area by which the surface area is reduced by compression divided by the surface are
A method of manufacturing a tube having an interior layer with an inner surface comprising: providing a tube member having an inner tubular surface; applying an interior layer on the inner tubular surface, the interior layer being made of material which is harder than that of said tube member; and s
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