The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 1997
Filed:
Nov. 17, 1993
Tadashi Inoue, Kawasaki, JP;
Hidekazu Yoshizawa, Kawasaki, JP;
Kiyoshi Tsuru, Kawasaki, JP;
Yoshiaki Shimizu, Kawasaki, JP;
Tomoyoshi Okita, Kawasaki, JP;
NKK Corporation, Tokyo, JP;
Abstract
An alloy sheet having a pierced hole face and providing a desirable etching performance, comprising {331}, {210}, and {211} planes on the surface; the gathering degree of the {311} plane being 14% or less, the gathering degree of the {210} plane being 14% or less, and the gathering degree of the {211} plane being 14% or less; and the ratio of the gathering degrees expressed by the equation {210}/({331}+{211}) being 0.2 to 1. An alloy sheet having a pierced hole face providing a desirable etching performance, comprising planes of {111}, {100}, {110}, {311}, {331}, {210} and {211}; the gathering degree of the {111} plane, S.sub.1, being 1 to 10%, the gathering degree of the {100} plane, S.sub.2, being 50 to 94%, the gathering degree of the {110} plane, S.sub.3, being 1 to 24%, the gathering degree of the {311} plane, S.sub.4, being 1 to 14%, the gathering degree of the {331} plane, S.sub.5, being 1 to 14%, the gathering degree of the {210} plane, S.sub.6, being 1 to 14%, the gathering degree of the {211} plane, S.sub.7, being 1 to 14%; and the ratio of gathering degrees expressed by the equation (S.sub.2 +S.sub.4 +S.sub.6)/(S.sub.1 +S.sub.3 +S.sub.5 +S.sub.7) being 0.8 to 20.