JPS5842776A - Improvement of pickling agent - Google Patents

Improvement of pickling agent

Info

Publication number
JPS5842776A
JPS5842776A JP14139181A JP14139181A JPS5842776A JP S5842776 A JPS5842776 A JP S5842776A JP 14139181 A JP14139181 A JP 14139181A JP 14139181 A JP14139181 A JP 14139181A JP S5842776 A JPS5842776 A JP S5842776A
Authority
JP
Japan
Prior art keywords
acid
pickling agent
fine particles
pickling
gel
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
JP14139181A
Other languages
Japanese (ja)
Inventor
Chobe Taguchi
田口　長兵衛
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP14139181A priority Critical patent/JPS5842776A/en
Publication of JPS5842776A publication Critical patent/JPS5842776A/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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/025—Cleaning or pickling metallic material with solutions or molten salts with acid solutions acidic pickling pastes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

PURPOSE:To obtain a pickling agent with superior spreadability and rust removing power by adding fine particles of specified hydrophilic silicic anhydride to an acid or a mixed acid and by making them gel. CONSTITUTION:Since scale formed on stainless steel or Al during welding spoils the fine appearance, it is thoroughly removed by pickling with a pickling agent. The pickling agent is prepared by adding >=130g/l fine particles of hydrophilic silicic anhydride having polysiloxane bond to an acid such as hydrochloric acid, hydrofluoric acid, nitric acid, phosphoric acid or sulfuric acid or a mixed acid thereof and by making them gel. The particle size of the fine particles is adjusted to <=20mum. When the pickling agent is used to remove scale formed on the weld zone of stainless steel or Al, the weld zone can be cleaned by the superior rust removing effect without causing dropping.

Description

【発明の詳細な説明】 ステンレス鋼やアルミニウムを溶接した場合に発生する
スケールは美観上脱錆が要求される場合が多い。小さな
物品は酸に直接浸漬し、脱錆できるが大きな物体は不可
能である。従って、このような物体の溶接部を脱錆する
場合には展着性の優れ、かつ脱錆力の強い酸洗剤が必要
である。このような塗布型の酸洗剤はこれまでも市販さ
れているが、脱錆力が弱く、かつ垂れ落ちる欠陥があっ
た。[Detailed Description of the Invention] Scale that occurs when stainless steel or aluminum is welded often requires removal of rust for aesthetic reasons. Small objects can be immersed directly in acid to remove rust, but larger objects cannot. Therefore, when derusting the welded parts of such objects, an acid detergent with excellent spreadability and strong derusting power is required. Although such coating-type acid detergents have been commercially available, they have a weak rust removal ability and have the drawback of dripping.

本発明はかへる事情に鑑みなされたものである。The present invention has been made in view of these circumstances.

即ち、各種の酸および混酸に親水性のアエロジル（商品
名）を添加し、これをゲル状にせるものである。That is, hydrophilic Aerosil (trade name) is added to various acids and mixed acids to form a gel.

親水性のアエロジルはポリシロキサン結合した２０ミリ
ミクロン以下の無水珪酸の微粒子である。Hydrophilic Aerosil is a polysiloxane bonded fine particle of silicic anhydride of 20 millimicrons or less.

このアエロジルは塩酸、弗酸、硝酸、硫酸、リン酸およ
びこれらの混酸にも溶解せず各々適量添加することによ
って酸をゲル状にできることが判明した。次に各種の酸
および混酸にアエロジルを添加した場合の添加量とゲル
化の様子を示す。It has been found that this Aerosil does not dissolve in hydrochloric acid, hydrofluoric acid, nitric acid, sulfuric acid, phosphoric acid, or a mixed acid thereof, and by adding an appropriate amount of each acid, the acid can be made into a gel. Next, the amount of addition and gelation when Aerosil is added to various acids and mixed acids are shown.

以上のように各種の酸および混酸１１！当りアエロジル
を約１３０ｇ以上添加するとゲル状になることが判明し
た。次に５％ＨＦ−２５％ＨＮ　Ｏ＊のゲル化したもの
をステンレス鋼およびアールミニラムの溶接部に塗布し
たところ垂れ落ちが全く無く、脱錆作用も優れているこ
とが判明した。As mentioned above, various acids and mixed acids 11! It has been found that when approximately 130 g or more of Aerosil is added per serving, it becomes gel-like. Next, when a gelled product of 5% HF-25% HNO* was applied to the welded parts of stainless steel and ARMINIRAM, it was found that there was no dripping at all and the rust removal effect was excellent.

Claims (1)

【特許請求の範囲】[Claims] 塩酸、弗酸、硝酸、リン酸、硫酸などの酸およびこれら
を２種類以上混合した混酸に親水性のアエロジル（商品
名）を添加し、展着性を改善することを特徴とした酸洗
剤。An acid detergent that improves spreading properties by adding hydrophilic Aerosil (trade name) to acids such as hydrochloric acid, hydrofluoric acid, nitric acid, phosphoric acid, and sulfuric acid, and mixed acids that are a mixture of two or more of these acids.
JP14139181A 1981-09-07 1981-09-07 Improvement of pickling agent Pending JPS5842776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14139181A JPS5842776A (en) 1981-09-07 1981-09-07 Improvement of pickling agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14139181A JPS5842776A (en) 1981-09-07 1981-09-07 Improvement of pickling agent

Publications (1)

Publication Number Publication Date
JPS5842776A true JPS5842776A (en) 1983-03-12

Family

ID=15290895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14139181A Pending JPS5842776A (en) 1981-09-07 1981-09-07 Improvement of pickling agent

Country Status (1)

Country Link
JP (1) JPS5842776A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02225683A (en) * 1989-02-28 1990-09-07 Seimi Chem Kk Acid detergent
KR100387353B1 (en) * 2000-05-01 2003-06-12 일진환경주식회사 A making method of cleanness chemicals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02225683A (en) * 1989-02-28 1990-09-07 Seimi Chem Kk Acid detergent
KR100387353B1 (en) * 2000-05-01 2003-06-12 일진환경주식회사 A making method of cleanness chemicals

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