EP1167563A1 - Procédé de fabrication de tuyaux en cuivre ou en alliage de cuivre avec revêtement intérieur - Google Patents

Procédé de fabrication de tuyaux en cuivre ou en alliage de cuivre avec revêtement intérieur Download PDF

Info

Publication number
EP1167563A1
EP1167563A1 EP01114244A EP01114244A EP1167563A1 EP 1167563 A1 EP1167563 A1 EP 1167563A1 EP 01114244 A EP01114244 A EP 01114244A EP 01114244 A EP01114244 A EP 01114244A EP 1167563 A1 EP1167563 A1 EP 1167563A1
Authority
EP
European Patent Office
Prior art keywords
pipe
coating
pretreatment
copper
wall
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.)
Ceased
Application number
EP01114244A
Other languages
German (de)
English (en)
Inventor
Terho Harju
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.)
Outokumpu Oyj
Original Assignee
Outokumpu Oyj
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 Outokumpu Oyj filed Critical Outokumpu Oyj
Publication of EP1167563A1 publication Critical patent/EP1167563A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
    • B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
    • B24C3/327—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes by an axially-moving flow of abrasive particles without passing a blast gun, impeller or the like along the internal surface
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas

Definitions

  • the present invention relates to a method according to claim 1 for coating the inside of a copper or copper alloy pipe by a protective coating, particularly a tin coating.
  • the object of the present invention is to realize a more viable pretreatment method to be applied in the internal coating of copper pipes, particularly in tin coating.
  • the invention is characterized by what is specified in the appended claims.
  • the method according to the invention is characterized in that prior to the coating treatment, the inside of the pipe is mechanically pretreated. In that way the use of dissolvents and rinses can be avoided.
  • a preferred embodiment of the method is characterized in that the inside of the pipe is pretreated by grain blasting, such as sand blasting. Grain blasting is an extremely viable method for the mechanical pretreatment of the inside of a pipe. It can be carried out by connecting the pipe to a grain blasting device, or else the nozzle of the grain blasting device and/or the pipe under treatment can be moved with respect to each other.
  • the inside of the pipe is pretreated by treating the surface with hard-spiked brush elements, such as steel wire brushes.
  • the brush element can be arranged in a rotating apparatus, so that said rotating brush element can be passed through the pipe, and consequently the whole interior surface thereof is treated.
  • the pipe is cleaned after the pretreatment by blasting with gas, such as pressurized air.
  • gas such as pressurized air.
  • the inside of the pipe is cleaned by using a cleaning element, such as a felt plug that fills the cross-section of the pipe.
  • the method according to the invention has several remarkable advantages.
  • the use of dissolvents and rinses prior to the coating treatment can be incredibly avoided.
  • the arrangement according to the invention can replace all solvent-based pretreatment steps.
  • a grain blasted inner surface of a pipe is active and absolutely clear of all impurities that could weaken the coating result.
  • semi-hard copper pipes can as such be internally coated with tin.
  • the quality of the obtained tin coating is excellent.
  • the pretreatment according to the invention can be applied in connection with various different tin coating methods, operated according to different principles.
  • the inner wall of the pipe is mechanically pretreated prior to the coating treatment.
  • the inner wall of the pipe is abrasively pretreated by grain blasting, such as sand blasting.
  • grain blasting such as sand blasting.
  • the inner wall of the pipe can also be pretreated by treating the wall surface with hard-spiked brush elements, such as steel wire brushes.
  • the pipe is internally cleaned by blowing with gas, such as pressurized air.
  • the pipe can also be internally cleaned by using a cleaning element.
  • the pretreatment device and the pipe are moved with respect to each other. This can be realized so that only one or both of said elements are moved during the treatment.
  • the pipe to be coated is in a recrystallized state, and suitably the pipe is a so-called semi-hard pipe.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP01114244A 2000-06-20 2001-06-12 Procédé de fabrication de tuyaux en cuivre ou en alliage de cuivre avec revêtement intérieur Ceased EP1167563A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20001467 2000-06-20
FI20001467A FI20001467A (fi) 2000-06-20 2000-06-20 Menetelmä sisäpuolelta pinnoitettujen kupari- tai kupariseosputkien valmistamiseksi

Publications (1)

Publication Number Publication Date
EP1167563A1 true EP1167563A1 (fr) 2002-01-02

Family

ID=8558601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01114244A Ceased EP1167563A1 (fr) 2000-06-20 2001-06-12 Procédé de fabrication de tuyaux en cuivre ou en alliage de cuivre avec revêtement intérieur

Country Status (2)

Country Link
EP (1) EP1167563A1 (fr)
FI (1) FI20001467A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004055230A1 (fr) * 2002-12-18 2004-07-01 Outokumpu Oyj Procede et dispositif permettant de traiter la surface interieure d'un tuyau en cuivre ou en alliage de cuivre
EP1571235A2 (fr) 2004-03-05 2005-09-07 Tréfimétaux S.A. Procédé d'étamage de pièces tubulaires en cuivre
CN115786752A (zh) * 2022-11-24 2023-03-14 有研工程技术研究院有限公司 一种提高白铜合金管材耐蚀性能的方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2282511A (en) * 1940-03-20 1942-05-12 American Brass Co Coating cupreous surfaces with tin
GB913301A (en) * 1958-03-25 1962-12-19 Emi Ltd Improvements in or relating to the formation of firmly adherent coatings of refractory materials on metal
FR2474532A1 (fr) * 1980-01-30 1981-07-31 Wieland Werke Ag Procede d'amelioration de la resistance a la corrosion de tubes d'installation interieure en cuivre
EP0306810A2 (fr) * 1987-09-10 1989-03-15 KM Europa Metal Aktiengesellschaft Procédé pour la fabrication de tubes en cuivre ou en alliages cuivreux étirés à froid et résistant à la corrosion
EP0335999A1 (fr) * 1988-04-08 1989-10-11 Wieland-Werke AG Méthode de nettoyage des tubes métalliques, en particulier des tubes en cuivre
CA2225464A1 (fr) * 1996-12-23 1998-06-23 Km Europa Metal Ag Tuyau de cuivre dont l'interieur est etame et methode d'etamage
EP0976845A1 (fr) * 1998-07-30 2000-02-02 Outokumpu Oyj Procédé pour la fabrication de tubes en cuivre
NL1010783C1 (nl) * 1998-12-10 2000-06-19 Franciscus Johannes Christiaan Gereedschap voor het bewerken, meer in het bijzonder het schoonmaken of schuren, van de uiteinden van buizen of pijpen.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2282511A (en) * 1940-03-20 1942-05-12 American Brass Co Coating cupreous surfaces with tin
GB913301A (en) * 1958-03-25 1962-12-19 Emi Ltd Improvements in or relating to the formation of firmly adherent coatings of refractory materials on metal
FR2474532A1 (fr) * 1980-01-30 1981-07-31 Wieland Werke Ag Procede d'amelioration de la resistance a la corrosion de tubes d'installation interieure en cuivre
EP0306810A2 (fr) * 1987-09-10 1989-03-15 KM Europa Metal Aktiengesellschaft Procédé pour la fabrication de tubes en cuivre ou en alliages cuivreux étirés à froid et résistant à la corrosion
EP0335999A1 (fr) * 1988-04-08 1989-10-11 Wieland-Werke AG Méthode de nettoyage des tubes métalliques, en particulier des tubes en cuivre
CA2225464A1 (fr) * 1996-12-23 1998-06-23 Km Europa Metal Ag Tuyau de cuivre dont l'interieur est etame et methode d'etamage
EP0851041A1 (fr) * 1996-12-23 1998-07-01 KM Europa Metal Aktiengesellschaft Tube en cuivre revêtu à l'interieure avec d'étain et procédé de revêtement d'un tube en cuivre
EP0976845A1 (fr) * 1998-07-30 2000-02-02 Outokumpu Oyj Procédé pour la fabrication de tubes en cuivre
NL1010783C1 (nl) * 1998-12-10 2000-06-19 Franciscus Johannes Christiaan Gereedschap voor het bewerken, meer in het bijzonder het schoonmaken of schuren, van de uiteinden van buizen of pijpen.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section PQ Week 200052, Derwent World Patents Index; Class P43, AN 2000-564060, XP002179262 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004055230A1 (fr) * 2002-12-18 2004-07-01 Outokumpu Oyj Procede et dispositif permettant de traiter la surface interieure d'un tuyau en cuivre ou en alliage de cuivre
EA011199B1 (ru) * 2002-12-18 2009-02-27 Отокумпу Оюй Способ и устройство для обработки внутренней поверхности трубки из меди или медного сплава
EP1571235A2 (fr) 2004-03-05 2005-09-07 Tréfimétaux S.A. Procédé d'étamage de pièces tubulaires en cuivre
CN115786752A (zh) * 2022-11-24 2023-03-14 有研工程技术研究院有限公司 一种提高白铜合金管材耐蚀性能的方法
CN115786752B (zh) * 2022-11-24 2024-05-31 有研工程技术研究院有限公司 一种提高白铜合金管材耐蚀性能的方法

Also Published As

Publication number Publication date
FI20001467A (fi) 2001-12-21
FI20001467A0 (fi) 2000-06-20

Similar Documents

Publication Publication Date Title
US5759307A (en) Method of producing a cold-rolled strip in one pass
CN110423995B (zh) 不锈钢产品滚镀方法及活化液
JPS6123272B2 (fr)
US5441763A (en) Method of corrosion protecting steel structural components
EP1167563A1 (fr) Procédé de fabrication de tuyaux en cuivre ou en alliage de cuivre avec revêtement intérieur
KR101738089B1 (ko) 기포발생이 방지되는 전착도장방법
JPH09111485A (ja) 電池用金属缶の脱脂洗浄方法
US3474008A (en) Method of surface finishing a metallic part
JPS63174748A (ja) 冷間鍛造用Ｔｉ及びＴｉ合金線材の連続伸線方法
JP3959768B2 (ja) 塗装前処理方法
KR100436597B1 (ko) 알루미늄 용융도금방법
CN110923719A (zh) 一种铝合金的表面抛光工艺
JPS5810973B2 (ja) メッキ鋼線の製造方法
JPH06336685A (ja) ステンレス研磨製品の製造方法及び製造装置
DE813472C (de) Vorbehandlung von Aluminium vor dem Aufbringen von Deckschichten
CN109801789B (zh) 一种利用二段直流电发孔制备中压腐蚀箔的方法
JPH07292486A (ja) 冷間加工のための被膜および潤滑剤を除去する方法および装置
US1254796A (en) Coating of pipes.
CN113523011A (zh) 冷镦用线材拉拔工艺
US20020164425A1 (en) Method for treating iron based parts
JPS6211078B2 (fr)
US3632453A (en) Method of manufacturing aluminum-coated ferrous base articles
US3627653A (en) Method for cleaning metal and metal parts to remove corrosion therefrom
JP3334785B2 (ja) 方向性電磁鋼板の製造に用いる金属ストリップのレジスト剥離設備列
JPH0128111B2 (fr)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020701

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AXX Extension fees paid

Free format text: AL PAYMENT 20020701;LT PAYMENT 20020701;LV PAYMENT 20020701;MK PAYMENT 20020701;RO PAYMENT 20020701;SI PAYMENT 20020701

17Q First examination report despatched

Effective date: 20030602

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20050726