US3912601A - Surface treatment of tin-plated steel sheets - Google Patents

Surface treatment of tin-plated steel sheets Download PDF

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Publication number
US3912601A
US3912601A US489489A US48948974A US3912601A US 3912601 A US3912601 A US 3912601A US 489489 A US489489 A US 489489A US 48948974 A US48948974 A US 48948974A US 3912601 A US3912601 A US 3912601A
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US
United States
Prior art keywords
tin
plated steel
steel sheet
surface treatment
steel sheets
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.)
Expired - Lifetime
Application number
US489489A
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English (en)
Inventor
Hidejiro Asano
Yoshitaka Hiromae
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Nippon Steel Corp
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Nippon Steel Corp
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Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
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Publication of US3912601A publication Critical patent/US3912601A/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/36—Phosphatising

Definitions

  • ABSTRACT A surface treatment of a tin-plated steel sheet which comprises electrolyzing the tin-plated steel sheet as cathode with a quantity of electricity between 1 and 50 c/dm in an aqueous solution containing 1 to 50 g/l of at least one of aluminum dihydrogenphosphate, aluminum monohydrogenphosphate and their mixture.
  • the present invention relates to surface treatment of tin-plated steel sheets, and more particularly relates to the surface treatment of tin-plated steel sheets for the purpose of prevention of damage to the sheet otherwise caused during a can-making process or during transportation.
  • electro-tin-plated steel sheets are subject to a passivation treatment after electro-tin plating in order to prevent oxidation of the surface of the tin-plated steel sheet.
  • an electrolytic treatment in a sodium bichromate bath has been widely used.
  • This electrolytic treatment although very useful for preventing abnormal increase of the tin oxide, has a defect in that a small amount of chromium oxide in the surface adheres and accumulates on the piler and tools in the can-making line and causes damages to the surface of the tin-plated steel sheet.
  • the present inventors have conducted various studies and experiments on surface treatments which satisfy the oxidation (passivation) of tin and are effective to prevent the surface damage, and have discovered that the formation of a phosphate film is most effective for this purpose. Then the present inventors have con- The reason for limiting the concentration of aluminum dihydrogenphosphate Al (H PO aluminum monohydrogenphosphate Al (HPO or their mixture to the range from 1 to g/l is that if the concentration is less than 1 g/l, an effective film for preventing the surface damage is not formed and if the concentration is more than 50 g/l, there is a tendency for deterioration of the surface brightness other than the surface damage problem.
  • H PO aluminum monohydrogenphosphate Al HPO or their mixture
  • the pH value of the aqueous solution is maintained to 3 or less since if the pH value exceeds 3, the surface brightness is deteriorated.
  • the bath temperature As for the bath temperature, better results can be obtained when it is between 20 and 80C.
  • the tin-plated steel sheet when treated under the above conditions, possesses very excellent properties.
  • EXAMPLE 1 A low carbon steel sheet of 0.23 mm thickness produced from an ordinary method was degreased in a caustic soda solution and then acid-pickled in a sulfuric acid solution. The surface-cleaned steel sheet was subjected to electro-tin-plating in a stannous phenolsulfonate electrolyte to give a tin coating of 12 g/m the thus tin-plated steel sheet heated to 270C to melt the tin to obtain mirror brightness, and then treated under the following conditions.
  • a tin-plated steel sheet prepared by the method of Example 1 was treated as a cathode under the following conditions.
  • a tin-plated steel sheet prepared by the method of Example 1 was treated as a cathode under the following conditions.
  • Treating bath Aluminum dihydrogenphosphatc l g/l A tin-plated steel sheet prepared by the method of Example 1 was treated as a cathode under the following conditions.
  • a tin-plated steel sheet prepared by the same method as in Example 1 was treated as a cathode under the following conditions.
  • a tin-plated steel sheet prepared by the same method as in Example 1 was treated as a cathode in a 0.5% sodium carbonate solution for 2 seconds with a current density of5 Aldm and then treated as a cathode under the following conditions.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemical Coating By Surface Reaction (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Chemical Treatment Of Metals (AREA)
US489489A 1973-08-01 1974-07-18 Surface treatment of tin-plated steel sheets Expired - Lifetime US3912601A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48086622A JPS5035042A (fr) 1973-08-01 1973-08-01

Publications (1)

Publication Number Publication Date
US3912601A true US3912601A (en) 1975-10-14

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ID=13892110

Family Applications (1)

Application Number Title Priority Date Filing Date
US489489A Expired - Lifetime US3912601A (en) 1973-08-01 1974-07-18 Surface treatment of tin-plated steel sheets

Country Status (2)

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US (1) US3912601A (fr)
JP (1) JPS5035042A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2290129A1 (fr) * 2008-05-12 2011-03-02 JFE Steel Corporation Procédé pour la production de tôles d'acier plaquées à l'étain, tôles d'acier plaquées à l'étain et fluide de traitement de conversion chimique
US20110104514A1 (en) * 2008-07-04 2011-05-05 Jfe Steel Corporation Method for producing tinned steel sheet and tinned steel sheet
US20110168563A1 (en) * 2008-07-10 2011-07-14 Jfe Steel Corporation Tin-plated steel sheet and method for manufacturing the same
US20110180185A1 (en) * 2008-07-10 2011-07-28 Jfe Steel Corporation Tinned steel sheet and method for producing the same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5468734A (en) * 1977-11-11 1979-06-02 Nippon Packaging Kk Surface treatment of tin plated steel plate and can
JPS54119404A (en) * 1978-03-09 1979-09-17 Kanto Denka Kogyo Kk Stabilized 1*1*11trichloroethane composition
FR2585349B1 (fr) * 1985-07-25 1988-03-04 Solvay Compositions stabilisees de 1,1,1-trichlorethane
JP5626416B2 (ja) * 2013-06-19 2014-11-19 Ｊｆｅスチール株式会社 錫めっき鋼板
JP5626417B2 (ja) * 2013-06-19 2014-11-19 Ｊｆｅスチール株式会社 錫めっき鋼板

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616307A (en) * 1969-05-16 1971-10-26 Bethlehem Steel Corp Process and composition for anodizing a tincoated article

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS601610B2 (ja) * 1976-06-30 1985-01-16 キヤノン株式会社 電磁レリ−ズ装置を備えたカメラ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616307A (en) * 1969-05-16 1971-10-26 Bethlehem Steel Corp Process and composition for anodizing a tincoated article

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2290129A1 (fr) * 2008-05-12 2011-03-02 JFE Steel Corporation Procédé pour la production de tôles d'acier plaquées à l'étain, tôles d'acier plaquées à l'étain et fluide de traitement de conversion chimique
US20110091741A1 (en) * 2008-05-12 2011-04-21 Jfe Steel Corporation Method for producing tinned steel sheet, tinned steel sheet, and chemical conversion solution
EP2290129A4 (fr) * 2008-05-12 2013-02-20 Jfe Steel Corp Procédé pour la production de tôles d'acier plaquées à l'étain, tôles d'acier plaquées à l'étain et fluide de traitement de conversion chimique
KR101318545B1 (ko) 2008-05-12 2013-10-16 제이에프이 스틸 가부시키가이샤 주석 도금 강판의 제조 방법 및 주석 도금 강판 그리고 화성 처리액
US20140079886A1 (en) * 2008-05-12 2014-03-20 Jfe Steel Corporation Method of producing tinned steel sheets
TWI477662B (zh) * 2008-05-12 2015-03-21 Jfe Steel Corp 鍍錫鋼板之製造方法及鍍錫鋼板暨化學轉化處理液
US20110104514A1 (en) * 2008-07-04 2011-05-05 Jfe Steel Corporation Method for producing tinned steel sheet and tinned steel sheet
US20110168563A1 (en) * 2008-07-10 2011-07-14 Jfe Steel Corporation Tin-plated steel sheet and method for manufacturing the same
US20110180185A1 (en) * 2008-07-10 2011-07-28 Jfe Steel Corporation Tinned steel sheet and method for producing the same
US20140102907A1 (en) * 2008-07-10 2014-04-17 Jfe Steel Corporation Tin-plated steel sheet and method for manufacturing the same
US8871038B2 (en) * 2008-07-10 2014-10-28 Jfe Steel Corporation Tinned steel sheet and method for producing the same
US9441310B2 (en) * 2008-07-10 2016-09-13 Jfe Steel Corporation Tin-plated steel sheet and method for manufacturing the same

Also Published As

Publication number Publication date
JPS5035042A (fr) 1975-04-03

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