JPS60141882A - Method for replating zinc-nickel alloy plated steel sheet - Google Patents

Method for replating zinc-nickel alloy plated steel sheet

Info

Publication number
JPS60141882A
JPS60141882A JP25222383A JP25222383A JPS60141882A JP S60141882 A JPS60141882 A JP S60141882A JP 25222383 A JP25222383 A JP 25222383A JP 25222383 A JP25222383 A JP 25222383A JP S60141882 A JPS60141882 A JP S60141882A
Authority
JP
Japan
Prior art keywords
steel sheet
plated steel
hydrochloric acid
alloy plated
plating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP25222383A
Other languages
Japanese (ja)
Inventor
Kazuo Inaba
稲葉　和夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP25222383A priority Critical patent/JPS60141882A/en
Publication of JPS60141882A publication Critical patent/JPS60141882A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/44—Compositions for etching metallic material from a metallic material substrate of different composition

Abstract

PURPOSE:To obtain plating having high adhesive strength while maintaining a conventional Ni content by pickling a Zn-Ni alloy plated steel sheet having an unfavorable appearance with hydrochloric acid, grinding the surfaces with a brush roll, pickling the steel sheet again with hydrochloric acid, and replating it. CONSTITUTION:A Zn-Ni alloy plated steel sheet having an unfavorable appearance such as ununiformity in the plating is pickled with hydrochloric acid having about 8-9% concn., and Ni remaining on the surfaces of the steel sheet is removed with a brush roll. The steel sheet is pickled again with hydrochloric acid having about 5% concn., and it is replated. By which method, plating having high adhesive strength is obtd. while maintaining the Ni content of a Zn-Ni alloy plated steel sheet manufactured in a conventional plating process.

Description

【発明の詳細な説明】 本発明は、メッキムラ等の外観不良な亜鉛−ニッケル合
金メッキ鋼板の再メツキ方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for replating zinc-nickel alloy plated steel sheets with poor appearance such as uneven plating.

従来一般の亜鉛メッキ鋼板では、メッキムラ等の外観不
良なものは、塩酸酸洗を行うだけで再メッキが可能であ
った。Conventionally, general galvanized steel sheets with poor appearance such as uneven plating can be replated simply by pickling with hydrochloric acid.

ところが、亜鉛−ニッケル合金メッキ鋼板では、塩酸酸
洗のみでは、亜鉛だけが溶解し、ニッケルが残ってしま
う。However, in the case of a zinc-nickel alloy plated steel sheet, only the hydrochloric acid pickling dissolves only the zinc and leaves the nickel behind.

ニッケルが残ると、そのまま再メッキした場合、メッキ
中のニッケル含有率が高くなり、密着性不良となる。If nickel remains, if replating is performed as is, the nickel content in the plating will increase, resulting in poor adhesion.

本発明は、かくの如きことに鑑みなしたものであって、
メッキムラ等の外観不良な亜鉛−ニッケル合金メッキ鋼
板を塩酸酸洗した後、鋼板面に残ったニッケルをブラシ
ロールにより除去し、次いで塩酸酸洗して再メッキする
のである。The present invention has been made in view of the above,
After a zinc-nickel alloy plated steel sheet with poor appearance such as uneven plating is pickled with hydrochloric acid, the remaining nickel on the surface of the steel sheet is removed using a brush roll, and then pickled with hydrochloric acid and re-plated.

従来の再メツキ方法では、再メツキ後のニッケル含有率
が１６〜１８％であり、図に示す如く密着性が悪いが、
本発明の再メツキ方法によれば、再メツキ後のニッケル
含有率が１０〜１２％となり、図に示す如く密着性は良
好であって、通常のメッキ工程における亜鉛−ニッケル
合金メッキ鋼板と同等であった。In the conventional re-plating method, the nickel content after re-plating is 16-18%, and as shown in the figure, the adhesion is poor.
According to the re-plating method of the present invention, the nickel content after re-plating is 10 to 12%, and as shown in the figure, the adhesion is good and is equivalent to that of a zinc-nickel alloy plated steel sheet in a normal plating process. there were.

なお、本発明の再メツキ方法における第１塩酸酸洗の塩
酸濃度は８〜９％、ブラシロールは砥粒入りナイロンブ
ラシロールを使用、第２塩酸酸洗の塩酸濃度は５％でる
る。In addition, in the replating method of the present invention, the concentration of hydrochloric acid in the first hydrochloric acid pickling is 8 to 9%, the brush roll is a nylon brush roll containing abrasive grains, and the concentration of hydrochloric acid in the second hydrochloric acid pickling is 5%.

【図面の簡単な説明】[Brief explanation of drawings]

図はニッケル含有率とメッキ密着性との関係を示すグラ
フである。 出願人川崎製鉄株式会社 （３） ８１０　１２　１４　１６　１８ 二ヅγル含有牛（’／、）The figure is a graph showing the relationship between nickel content and plating adhesion. Applicant Kawasaki Steel Corporation (3) 810 12 14 16 18 Niduru gamma-containing beef ('/,)

Claims (1)

【特許請求の範囲】[Claims] メッキムラ等の外観不良な亜鉛−ニッケル合金メッキ鋼
板を再メッキするに当り、このメッキ鋼板を塩酸酸洗し
た後、ブラシロールによる表面研削を行い、次いで塩酸
酸洗して再メッキすることを特徴とする亜鉛−ニッケル
合金メッキ鋼板の再メツキ方法。When re-plating a zinc-nickel alloy plated steel sheet with poor appearance such as uneven plating, the plated steel sheet is pickled with hydrochloric acid, the surface is ground with a brush roll, and then the plated steel sheet is pickled with hydrochloric acid and re-plated. A method for replating zinc-nickel alloy plated steel sheets.
JP25222383A 1983-12-27 1983-12-27 Method for replating zinc-nickel alloy plated steel sheet Pending JPS60141882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25222383A JPS60141882A (en) 1983-12-27 1983-12-27 Method for replating zinc-nickel alloy plated steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25222383A JPS60141882A (en) 1983-12-27 1983-12-27 Method for replating zinc-nickel alloy plated steel sheet

Publications (1)

Publication Number Publication Date
JPS60141882A true JPS60141882A (en) 1985-07-26

Family

ID=17234222

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25222383A Pending JPS60141882A (en) 1983-12-27 1983-12-27 Method for replating zinc-nickel alloy plated steel sheet

Country Status (1)

Country Link
JP (1) JPS60141882A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5304403A (en) * 1992-09-04 1994-04-19 General Moors Corporation Zinc/nickel/phosphorus coatings and elecroless coating method therefor
JP2011157567A (en) * 2010-01-29 2011-08-18 Jfe Steel Corp Electroplating treatment method
CN109778191A (en) * 2019-03-12 2019-05-21 珠海市玛斯特锌镍加工有限公司 A kind of withdrawal plating of easy turning steel part surface Zinc-Nickel coating layer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5304403A (en) * 1992-09-04 1994-04-19 General Moors Corporation Zinc/nickel/phosphorus coatings and elecroless coating method therefor
JP2011157567A (en) * 2010-01-29 2011-08-18 Jfe Steel Corp Electroplating treatment method
CN109778191A (en) * 2019-03-12 2019-05-21 珠海市玛斯特锌镍加工有限公司 A kind of withdrawal plating of easy turning steel part surface Zinc-Nickel coating layer

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