GB1277830A - Method for removing solid contaminants from the surfaces of steel - Google Patents

Method for removing solid contaminants from the surfaces of steel

Info

Publication number
GB1277830A
GB1277830A GB57684/70A GB5768470A GB1277830A GB 1277830 A GB1277830 A GB 1277830A GB 57684/70 A GB57684/70 A GB 57684/70A GB 5768470 A GB5768470 A GB 5768470A GB 1277830 A GB1277830 A GB 1277830A
Authority
GB
United Kingdom
Prior art keywords
liquid
gas
powder
steel
sheet
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
Application number
GB57684/70A
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 Engineering Corp
Original Assignee
Nippon Kokan Ltd
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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of GB1277830A publication Critical patent/GB1277830A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • B24C1/086—Descaling; Removing coating films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C11/00—Selection of abrasive materials or additives for abrasive blasts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0084—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a mixture of liquid and gas

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Cleaning In General (AREA)
  • Metal Rolling (AREA)

Abstract

1277830 Descaling steel NIPPON KOKAN KK 4 Dec 1970 [8 Dec 1969] 57684/70 Heading B3D A method for descaling steel comprises spraying a mixture of powdered solids, gas and liquid on to the steel at a velocity in excess of 30 metres per sec., the ratio of liquid to gas being within the range 1 : 1 to 5 : 1 and the ratio of solid to gas being within the range 5 : 1 to 15 : 1. In one arrangement, powder 6, Fig. 1, and liquid 7 are supplied to a mixing tank 1 and gas 8 is added to a surge tank 2 and carries the powder and liquid to a nozzle 4 where it is mixed with high pressure gas 9 and jetted on to steel sheet 5. In another arrangement powder 10, Fig. 2, is carried from a tank 3 by gas 11, 12 to a nozzle 4 and jetted by high pressure liquid 13 on to the sheet 5. A nozzle for use in the method has mean A for receiving high pressure gas or high pressure gas and powder, and means B for receiving the powder and liquid or liquid according to which arrangement is used, the materials being mixed at C for jetting through opening 14. The particles of the powder have a diameter less than 0.5 mm. The steel sheet may be at a temperature of 1200‹ C. the method, in addition to descaling the sheet, also effecting cooling thereof, or the steel may have a temperature of 300‹ to 600‹ C. and can be inspected at the same time. The method may be used during rolling of the sheet and may also be used for cleaning, sand stripping of moulding, and removing rust and coating agents from forged billets.
GB57684/70A 1969-12-08 1970-12-04 Method for removing solid contaminants from the surfaces of steel Expired GB1277830A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9817569 1969-12-08

Publications (1)

Publication Number Publication Date
GB1277830A true GB1277830A (en) 1972-06-14

Family

ID=14212689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB57684/70A Expired GB1277830A (en) 1969-12-08 1970-12-04 Method for removing solid contaminants from the surfaces of steel

Country Status (8)

Country Link
US (1) US3775180A (en)
DE (1) DE2060419A1 (en)
FR (1) FR2073067A5 (en)
GB (1) GB1277830A (en)
NL (1) NL7017852A (en)
SE (1) SE380452B (en)
SU (1) SU390702A3 (en)
ZA (1) ZA708272B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106180220A (en) * 2015-04-30 2016-12-07 宝山钢铁股份有限公司 The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet and device thereof

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT339169B (en) * 1975-09-25 1977-10-10 Voest Ag PROCESS FOR CLEANING AUSTENITIC MATERIAL SURFACES, IN PARTICULAR FERRITIC CONTAMINATIONS
JPS5496458A (en) * 1978-01-18 1979-07-30 Ishikawajima Harima Heavy Ind Co Ltd Method and apparatus for descaling of steel strip
FR2438507A1 (en) * 1978-10-13 1980-05-09 Safian Matvei Rolled metal sheet, esp. stainless steel or aluminium alloys - where mirror bright or smooth matt surfaces are obtd. by shot blasting sheet with microbeads prior to rolling
US4511124A (en) * 1983-05-03 1985-04-16 Lone Star Steel Company Method and composition for fluidization of accumulated pit scrap in soaking pits
JPS61502244A (en) * 1984-05-30 1986-10-09 チエレポヴエストスキ−　フイリアル　セヴエロ−ザパドノボ　ザオチノボ　ポリチエフニチエスコボ　インスチツ−タ Device for removing scale from rolled strip
BR8607188A (en) * 1986-07-30 1988-09-13 Cherepovets Volog Politekh I APPARATUS FOR SCALING A STRIP OF MATERIAL IN SHEET
CA2122361C (en) * 1992-03-20 1998-06-16 Lawrence Kirschner Abrasive coating remover and process for using same
US5598730A (en) * 1994-08-30 1997-02-04 Snap-On Technologies, Inc. Pre-forge aluminum oxide blasting of forging billets as a scale resistance treatment
US6025536A (en) * 1997-08-20 2000-02-15 Bristol-Myers Squibb Company Process of manufacturing a cobalt-chromium orthopaedic implant without covering defects in the surface of the implant
KR100802328B1 (en) * 2005-04-07 2008-02-13 주식회사 솔믹스 Method of preparing wear-resistant coating layer comprising metal matrix composite and coating layer prepared by using the same
US8074331B2 (en) * 2006-09-14 2011-12-13 The Material Works, Ltd. Slurry blasting apparatus for removing scale from sheet metal
US7601226B2 (en) * 2006-09-14 2009-10-13 The Material Works, Ltd. Slurry blasting apparatus for removing scale from sheet metal
US8066549B2 (en) * 2006-09-14 2011-11-29 The Material Works, Ltd. Method of producing rust inhibitive sheet metal through scale removal with a slurry blasting descaling cell having improved grit flow
US8128460B2 (en) * 2006-09-14 2012-03-06 The Material Works, Ltd. Method of producing rust inhibitive sheet metal through scale removal with a slurry blasting descaling cell
US8062095B2 (en) * 2006-09-14 2011-11-22 The Material Works, Ltd. Method of producing rust inhibitive sheet metal through scale removal with a slurry blasting descaling cell having improved grit flow
CN100531947C (en) * 2007-06-15 2009-08-26 中国第一重型机械集团公司 Process of high-pressure air-flow scale removal
CN104607473B (en) * 2014-12-30 2016-08-24 山东钢铁股份有限公司 Rolled piece chiller and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2380738A (en) * 1940-07-29 1945-07-31 Arthur H Eppler Art of sandblasting
US2605596A (en) * 1949-11-10 1952-08-05 William C Uhri Method of cleaning surfaces
US2817195A (en) * 1956-01-24 1957-12-24 Leo P Curtin Cleaning metal surfaces
US2858653A (en) * 1956-02-17 1958-11-04 Texas Co Abrading objects
US3149445A (en) * 1959-09-25 1964-09-22 Owens Illinois Glass Co Surface finishing and treating method
US3343304A (en) * 1965-03-12 1967-09-26 Arthur H Eppler Apparatus for wet abrasive blasting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106180220A (en) * 2015-04-30 2016-12-07 宝山钢铁股份有限公司 The metal plate and belt surface treatment method of a kind of centrifugal impelling three-phase mixing jet and device thereof

Also Published As

Publication number Publication date
DE2060419A1 (en) 1971-12-23
SE380452B (en) 1975-11-10
ZA708272B (en) 1971-08-25
FR2073067A5 (en) 1971-09-24
SU390702A3 (en) 1973-07-11
NL7017852A (en) 1971-06-10
US3775180A (en) 1973-11-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee