INSULATIVE COATING PROCESSING LIQUID AND METHOD FOR MANUFACTURING METAL HAVING INSULATIVE COATING

Title:

INSULATIVE COATING PROCESSING LIQUID AND METHOD FOR MANUFACTURING METAL HAVING INSULATIVE COATING

Document Type and Number:

WIPO Patent Application WO/2017/038911

Kind Code:

A1

Abstract:

Provided is an insulative coating processing liquid with which an insulative coating having excellent physical properties can be obtained. The insulative coating processing liquid contains: at least one phosphate selected from the group consisting of Mg, Ca, Ba, Sr, Zn, Al, and Mn; and two or more types of colloidal silicas having different mean particle diameters, wherein the total contained amount of the colloidal silicas in terms of the SiO2 solid content is 50-120 parts by mass with respect to 100 parts by mass of the solid content of the phosphate, a mean particle diameter ratio expressed as ri+1/ri is not lower than 1.5 when the mean particle diameters of the colloidal silicas are represented as r1, …, rn in an ascending order, and a mass ratio expressed as wi+1/(wi+1+wi) is 0.30-0.90 when the masses of the colloidal silicas in terms of the SiO2 solid content are represented as w1, …, wn in an ascending order of the respective mean particle diameters. It should be noted that n represents an integer equal to or larger than 2, and i represents an integer of 1-n.

Inventors:

TERASHIMA TAKASHI (JP)
SUEHIRO RYUICHI (JP)
WATANABE MAKOTO (JP)
TAKAMIYA TOSHITO (JP)

Application Number:

PCT/JP2016/075596

Publication Date:

March 09, 2017

Filing Date:

September 01, 2016

Export Citation:

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Assignee:

JFE STEEL CORP (JP)

International Classes:

C23C22/07; C21D9/46; C23C22/00; C23C22/12; C23C22/42; H01F1/18

Foreign References:

JPH0339484A	1991-02-20
JPH1171683A	1999-03-16

Other References: