Method for manufacturing an electroforming mold
AssigneeFET Engineering, Inc.
InventorMinoru Kitano
Life of this patent
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Abstract
An electroformed tool that has a uniform air-releasing hole system with high strength and a simple and convenient method to manufacture it has been created. The method includes conducting electroforming by mixing a non-leveling agent with an electrolytic solution and forming an electroformed layer which has a continuous air-releasing hole structure.
Claims5
A method of manufacturing a porous electroformed tool in which a metal deposited layer is formed by depositing metal on a base by electroforming, characterized by using electroforming solution comprising nickel sulfamate, in the range of 300-400 g/L, nickel chloride in the range of 5-10 g/L, and boric acid in the range of 30-40 g/L, to which is added a non-leveling agent consisting of benzene sulfonic acid or a carboxylic acid or nicotinic acid or methyl-pentynol in the range of 0.05-0.8 g/L in the process of depositing metal on the base to form a porous electroformed tool having about 70 holes of 10-20 .mu.m per dm.sup.2.
A method of manufacturing a porous electroformed tool in which a metal deposited layer is formed by depositing metal on a base by electroforming, characterized by using electroforming solution comprising nickel sulfamate, in the range of 300-400 g/L, nickel chloride in the range of 5-10 g/L, and boric acid in the range of 30-40 g/L, to which is added a non-leveling agent consisting of benzene sulfonic acid or a carboxylic acid or nicotinic acid or methyl-pentynol in the process of depositing metal on the base to form a porous electroformed tool having about 70 holes of 10-20 .mu.m per dm.sup.2, said nicotinic acid or methyl-pentynol being added in the range of about 0.001-0.1 g/L.
Dependencies are inferred from the claim text.