发明名称 |
Duplicator cylinder construction |
摘要 |
Cylinders for lithographic printing machines having hard, non-porous surfaces are made without plating by forming a thin stainless steel sheet into a cylindrical shape and disposing it against the wall of a cylindrical mould. Cast iron is poured into the mould at temperatures substantially in excess of normal casting temperatures to bond with the stainless steel sheet. The surface is then ground and polished. Preferably the stainless steel is initially provided with a thin plating of copper on its inner surface to enhance the bond.
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申请公布号 |
US4106408(A) |
申请公布日期 |
1978.08.15 |
申请号 |
US19770770330 |
申请日期 |
1977.02.22 |
申请人 |
ADDRESSOGRAPH MULTIGRAPH CORPORATION |
发明人 |
HOLLAND, NORMAN |
分类号 |
B22D19/00;B41C1/18;B41N6/00;(IPC1-7):B41C1/18;B41C3/02;B22D19/02 |
主分类号 |
B22D19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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