Method for manufacturing of a stainless steel product having patterns and drawings thereon
OwnerChung-He Liinventor
Life of this patent
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Abstract
A method includes a first step, in which a steel plate is shaped into a semi-finished product, a second step, in which a screen is stuck on the surface of the semi-finished product, and a protecting substance is applied on the product such that those portions of the product that are not covered with the screen have a protecting film thereon, a third step, in which the product is immersed in etching chemicals such that those portions that were covered with the screen, not protected with the protecting film, are etched to become recess areas presenting patterns and drawings, and a polishing step, which is performed after the etching.
Claims3
A method for manufacturing of a stainless steel product having patterns and drawings thereon, comprising steps
- (1) shaping a steel plate into a semi-finished product;
- (2) screen printing and forming a protecting film, in which a screen is stuck on a surface of the semi-finished product, and a protecting substance is applied on the semi-finished product such that those portions of the semi-finished product that are not covered with the screen have a protecting film formed thereon;
- the screen being made so as to present patterns and drawings;
- (3) etching, in which the semi-finished product is immersed in a sink containing etching chemicals such that those portions thereof that were covered with the screen, not protected with the protecting film, are etched by the chemicals to become recess areas presenting the patterns and drawings;
- and
- (4) polishing those portions of the semi-finished product that are not etched.
Dependencies are inferred from the claim text.