KR870007299A - Surface-treated steel sheet excellent in seam weldability and paint adhesion and its manufacturing method - Google Patents

Surface-treated steel sheet excellent in seam weldability and paint adhesion and its manufacturing method Download PDF

Info

Publication number
KR870007299A
KR870007299A KR1019860000211A KR860000211A KR870007299A KR 870007299 A KR870007299 A KR 870007299A KR 1019860000211 A KR1019860000211 A KR 1019860000211A KR 860000211 A KR860000211 A KR 860000211A KR 870007299 A KR870007299 A KR 870007299A
Authority
KR
South Korea
Prior art keywords
steel sheet
tin
chromium
acid
paint adhesion
Prior art date
Application number
KR1019860000211A
Other languages
Korean (ko)
Other versions
KR900004071B1 (en
Inventor
히로아끼 가와무라
마사노부 마츠바라
오사무 요시오까
츠네오 이누이
Original Assignee
도오요오고오한 가부시끼 가이샤
구노오 이치로오
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 도오요오고오한 가부시끼 가이샤, 구노오 이치로오 filed Critical 도오요오고오한 가부시끼 가이샤
Priority to KR1019860000211A priority Critical patent/KR900004071B1/en
Publication of KR870007299A publication Critical patent/KR870007299A/en
Application granted granted Critical
Publication of KR900004071B1 publication Critical patent/KR900004071B1/en

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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

내용 없음No content

Description

시임(seam)용접성, 도료밀착성이 우수한 표면처리 강판 및 그 제조방법Surface-treated steel sheet excellent in seam weldability and paint adhesion and its manufacturing method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 크롬산욕 중에서 강판 및 주석판을, 전위를 낮게 이동시키면서 정전위 전해 하였을 때, 얻어지는 음분극 곡선. 제2도 및 제3도는 본 발명의 표면처리 강판의 단면을 모식적으로 나타낸 것으로 제2도는 주석도금 후, 가열용융 처리를 행하지 않고, 금속크롬층, 크롬수화산화물층을 형성시킨 것이며, 제3도는 주석도금 후, 가열용융 처리를 행하고, 그 후, 금속크롬층, 크롬수화산화물층을 형성하게 한 것이다.FIG. 1 is a negative polarization curve obtained when electrostatic potential electrolysis of a steel sheet and a tin plate in a chromic acid bath is carried out with low electric potential. 2 and 3 schematically show the cross section of the surface-treated steel sheet of the present invention, and FIG. 2 shows a metal chromium layer and a chromium hydride layer formed after tin plating without heat-melting. After the tin plating, the hot melt treatment is performed, and then a metal chromium layer and a chromium hydride layer are formed.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 크롬수화산화물 2 : 금속크롬 3 : 주석도금DESCRIPTION OF SYMBOLS 1: chromium hydroxide 2: metal chromium 3: tin plating

4 : 주석철합금층 5 : 강판4: tin iron alloy layer 5: steel sheet

Claims (2)

강판 표면에 한쪽면당 주석량 50∼900mg/m2의 주석도금(3)을 한 후, 주석을 가열 용융하고, 혹은 가열 용융하지 않고, 7∼100mg/m2의 금속크롬(2)층, 크롬으로서 5∼50mg/m2의 크롬수화산화물(1)층을 형성하게 한 강판(5)에 있어서, 크기가 원으로 환산하였을 때에, 지름 0.5∼20㎛의 주석이 전착되어 있지 않은 강판(5)의 노출부가 산재하고, 그 부분 및 도금한 주석 위에 금속크롬(2) 및 그 위에 크롬수화산화물(1)이 균일하게 존재하는 것을 특징으로 하는 시임용접성, 도료밀착성이 우수한 표면처리 강판.After tin plating (3) having a tin content of 50 to 900 mg / m 2 per side on the surface of the steel sheet, 7 to 100 mg / m 2 metal chromium (2) layer, chromium is not melted by heating or melting. In the steel sheet 5 which forms the 5-50 mg / m <2> chromium hydroxide oxide (1) layer, when the magnitude | size turns into a circle, the steel plate (5) which is not electrodeposited with the diameter of 0.5-20 micrometers The surface-treated steel sheet excellent in seam weldability and paint adhesion, characterized in that the exposed portions of the metal powder (2) and chromium hydroxide (1) are uniformly present on the portion and the plated tin. 제1항에 있어서, 강판 표면에 탈지, 산세정을 한 후, 2가 주석 이온농도 30∼80g/ι, 산농도 15∼60g/ι(황산으로서), 첨가제 농도 0.2∼2g/ι의 황산주석욕 혹은 메놀슬폰산욕을 사용하여, 욕온도 40∼60℃, 전류밀도 2∼10A/dm2의 조건으로 주석도금(3)을 실시하고, 주석을 가열용융한 후, 혹은 가열용융하지 않고, 이 주석 도금 강판을 황산, 불화수소산, 붕불화수소산, 규불화수소산, 및 이들의 알카리금속염, 암모늄 염의 1종 이상을 함유하는 크롬산 욕중에서 포화칼로멜 전극에 대하여 -0.8∼-1.0V의 전위로 나타내는 전류밀도보다 높은 전류밀도로 정전류전해하여, 금속크롬(2)을 석출시키고, 그 후에, 공지의 방법으로 크롬수화산화물(1)을 생성하게 하던가, 혹은 금속크롬(2)과 크롬수산화산화물(1)을 동시에 석출 시키는 것을 특징으로 하는 시임용접성, 도료밀착성이 우수한 표면처리 강판의 제조방법.The tin sulfate of claim 1, wherein the surface of the steel sheet is degreased and pickled, and then tin sulfate having a divalent tin ion concentration of 30 to 80 g / ι, an acid concentration of 15 to 60 g / ι (as sulfuric acid), and an additive concentration of 0.2 to 2 g / ι. Using a bath or a menolsulfonic acid bath, tin plating (3) was carried out under the conditions of a bath temperature of 40 to 60 ° C. and a current density of 2 to 10 A / dm 2 , and after heating and melting the tin, or without heating and melting. A current exhibited at a potential of -0.8 to -1.0 V with respect to a saturated caramel electrode in a tin-plated steel sheet in a chromic acid bath containing sulfuric acid, hydrofluoric acid, hydrofluoric acid, hydrofluoric acid, and at least one of alkali metal salts and ammonium salts thereof. By carrying out constant current electrolysis at a current density higher than the density, the metal chromium 2 is precipitated, and thereafter, chromium hydroxide 1 is produced by a known method, or the metal chromium 2 and the chromium hydroxide 1 are formed. Seam weldability, paint adhesion, characterized in that to precipitate simultaneously The method of producing a surface-treated steel sheet excellent. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019860000211A 1986-01-15 1986-01-15 Surface treated steel sheet to be excellent in weldability lacquer adhesion and method for making KR900004071B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019860000211A KR900004071B1 (en) 1986-01-15 1986-01-15 Surface treated steel sheet to be excellent in weldability lacquer adhesion and method for making

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019860000211A KR900004071B1 (en) 1986-01-15 1986-01-15 Surface treated steel sheet to be excellent in weldability lacquer adhesion and method for making

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR2019900005425U Division KR900005712Y1 (en) 1985-03-22 1990-04-30 Rotor of small sized motor

Publications (2)

Publication Number Publication Date
KR870007299A true KR870007299A (en) 1987-08-18
KR900004071B1 KR900004071B1 (en) 1990-06-11

Family

ID=19248028

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860000211A KR900004071B1 (en) 1986-01-15 1986-01-15 Surface treated steel sheet to be excellent in weldability lacquer adhesion and method for making

Country Status (1)

Country Link
KR (1) KR900004071B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020050383A (en) * 2000-12-21 2002-06-27 이구택 A producing process for surface-treated steel sheet with superior weldability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020050383A (en) * 2000-12-21 2002-06-27 이구택 A producing process for surface-treated steel sheet with superior weldability

Also Published As

Publication number Publication date
KR900004071B1 (en) 1990-06-11

Similar Documents

Publication Publication Date Title
US3998601A (en) Thin foil
US3989604A (en) Method of producing metal strip having a galvanized coating on one side
KR840004463A (en) Steel plate manufacturing method with excellent phosphate coating
US3901771A (en) One-side electrocoating
US3454376A (en) Metal composite and method of making same
JPH0216397B2 (en)
US3970537A (en) Electrolytic treating apparatus
US3298802A (en) Method for covering objects with a decorative bright-nickel/chromium coating, as well as objects covered by applying this method
US3959099A (en) Electrolytic method of producing one-side-only coated steel
US3249520A (en) Process of providing an electrolytic deposit on a face of a workpiece
KR870007299A (en) Surface-treated steel sheet excellent in seam weldability and paint adhesion and its manufacturing method
EP0307929B1 (en) Plated steel sheet for a can
KR900016506A (en) Bath and electrolytic method for stripping coatings from aluminum base materials
ES420067A1 (en) Electrolyte and method for electrodepositing microporous chromium-nickel composite coatings
US4244790A (en) Composition and method for electrodeposition of black nickel
SU116447A1 (en) The method of applying copper coatings by electrolysis of non-cyanic electrolytes
JPS5550484A (en) Electric zinc alloy plated steel sheet and production thereof
JPS5629661A (en) Manufacture of one-side zinc-plated steel-plate
JPS57114695A (en) Production of zinc plated steeel plate of superior blackening resistance and intergranular corrosion resistance
JPS6455397A (en) Zinc-chromium based electroplated steel sheet having excellent surface grade and corrosion resistance
SU775186A1 (en) Brass-plating electrolyte
JPS5837192A (en) Post-treatment for non-plated surface of steel plate electroplated with zinc on one side
Miyata et al. Black Composite Electrogalvanized Steel Sheet. I.--Relationship Between Blackening Conditions and its Blackness
JPS61119694A (en) Production of electroplated steel plate
JPS6436789A (en) Melting method for tin layer after electroplating tin

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 19971230

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee