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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0638871 (1984-11-05) |
우선권정보 | AT-0005879 (1980-12-02) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 2 |
In a method of producing heavy plate of steel, a prematerial is hot-rolled in several passes. As the prematerial at least two slabs of the same steel quality are superposed so as to form a pack and are welded by roll-bonding and reduced in thickness.
A method of producing a thick plate of steel by hot-rolling a prematerial in several passes, which method comprises the steps of forming at least two packs each comprised of at least two cast slabs of steel constituting said prematerial, each of said packs being formed of slabs of equal steel qualit
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