WO2003010356A1 - Procede de fabrication d'un produit tubulaire et produit tubulaire - Google Patents

Procede de fabrication d'un produit tubulaire et produit tubulaire Download PDF

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Publication number
WO2003010356A1
WO2003010356A1 PCT/JP2002/007454 JP0207454W WO03010356A1 WO 2003010356 A1 WO2003010356 A1 WO 2003010356A1 JP 0207454 W JP0207454 W JP 0207454W WO 03010356 A1 WO03010356 A1 WO 03010356A1
Authority
WO
WIPO (PCT)
Prior art keywords
plating
pipe
layer
molded
product
Prior art date
Application number
PCT/JP2002/007454
Other languages
English (en)
Japanese (ja)
Inventor
Kenichi Henmi
Original Assignee
Sanoh Kogyo Kabushiki Kaisha
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 Sanoh Kogyo Kabushiki Kaisha filed Critical Sanoh Kogyo Kabushiki Kaisha
Publication of WO2003010356A1 publication Critical patent/WO2003010356A1/fr

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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/01—Arrangement of fuel conduits

Definitions

  • the present invention relates to a method for producing a pipe molded product and a pipe molded product, and more particularly to a method for producing a highly corrosion-resistant pipe molded product such as a fuel delivery pipe used for parts of an automobile, and a pipe molded product.
  • the aluminum material has strong corrosion resistance against oxidation and the like, so that the inside of the fuel delivery pipe does not need to be plated.
  • Ni plating was not applied to the surface of the mouth material used during welding. ( If the Ni plating was thick, bending cracking could cause plating cracks. Gasoline may come into direct contact with the steel material on the side surfaces, and the Ni layer, which is a barrier layer, is interrupted on the outer side surface, resulting in a problem of reduced corrosion resistance.
  • An object of the present invention is to provide a method for manufacturing a pipe molded product that solves the above-mentioned problems of the prior art and enables the manufacture of a tubular product such as a highly corrosion-resistant fuel delivery pipe.
  • the present invention relates to a method for producing a pipe molded product having a pipe-shaped portion, comprising: Forming; and dipping the completed shaped body in a Ni plating liquid to perform electroless Ni plating.
  • the method is characterized by comprising, following the electroless Ni plating step, a step of applying a Zn plating or a Zn alloy plating, a step of performing a chromate treatment, and a step of performing an organic coating treatment.
  • a pipe molded product having a pipe-shaped portion, and in a state where a completed shape to be the pipe molded product is formed, an electroless N formed on a surface of the completed shape is formed. It is characterized by having a Ni plating layer by i plating.
  • the Ni plating layer is formed on the inner surface and the outer surface of the completed shape, and the Zn formed on the Ni plating layer on the outer surface of the completed shape is formed. It is characterized by comprising a Zn plating layer formed by plating or a Zn alloy alloy, a chromate treatment layer formed on the Zn plating layer, and an organic coating treatment layer formed on the chromate treatment layer.
  • the Ni plating layer is formed on an inner surface and an outer surface of the completed shape, and the Ni plating on the inner surface and the outer surface of the completed shape.
  • the pipe molding is a fuel delivery pipe.
  • the pipe molded product is characterized in that the pipe length is at least three times the pipe diameter.
  • the finished shape is formed by processing and forming the steel material, and the finished shape is subjected to the electroless Ni plating. Also, since it is not necessary to newly perform a bending process or the like, it is possible to eliminate the occurrence of cracks, and since there is no need to dispose electrodes, the inner surface of the pipe-shaped portion is not required. Also Ni plating can be applied.
  • FIG. 1 is a perspective view showing a fuel delivery pipe pipe as an example of a molded pipe.
  • FIG. 2 is a diagram showing a manufacturing process of a molded pipe.
  • FIG. 3 is a cross-sectional view showing the surface of the molded pipe.
  • FIG. 1 shows a schematic configuration of a fuel delivery pipe 1 as an example of a tubular product.
  • the fuel delivery pipe 1 includes a plurality of cylindrical pipes 2 and a long and thin connecting pipe 3 for connecting the pipes 2 to each other to feed and discharge fuel.
  • the pipe part 2 is connected to the connecting pipe 3 like a branch pipe, and a branch part is formed at the connecting part of the connecting pipe 3 of the connecting pipe 3. Fuel is supplied from the B side and sent out to the A side.
  • the tubular product targeted by the embodiment of the present invention has a longer length in the flow direction than the diameter of a pipe forming a fluid flow path, such as a fuel delivery pipe 1, for example.
  • a pipe forming a fluid flow path such as a fuel delivery pipe 1, for example.
  • Whose length in the channel direction is at least 3 times longer than the pipe diameter It is. If the length in the direction of the flow path is three times or more longer than the diameter of the pipe in this way, when the product Ni (electroformed Ni) is subjected to electrolytic Ni plating via a pair of electrodes, Even if one electrode is attached to the product shape and an electric field is applied, the electric field does not spread sufficiently to the back of the tube due to the shielding effect of the cylindrical conductor.
  • the electrolytic plating reaction occurs only in a length range of about 1.5 times the pipe diameter from the pipe end, and it is impossible to perform uniform plating on the inner wall surface of the product shape without unevenness.
  • the diameter of the pipe refers to the thickness of the cylindrical body such as a rectangular parallelepiped.
  • an iron plate material and an iron tube material are cut and formed into a predetermined shape according to a known processing method.
  • the formed parts are connected to each other by welding to finish the finished product.
  • a product shape body that has been completed in shape to become the fuel delivery pipe 1 is placed in a predetermined plating solution tank, and electroless Ni plating is performed by a known method.
  • the electroless Ni plating is a plating performed using, for example, a Ni—P alloy.
  • the product shape (finished shape) is rotated in the plating liquid tank or the plating liquid in the plating liquid tank is stirred so that the Ni plating liquid flows into the inside of the product shape.
  • the Ni plating is an electroless plating, it is not necessary to pass a current through the electrode, and the uniform distribution is achieved simply by applying a mechanical relative movement between the Ni plating liquid and the product. It is possible to apply the Ni plating without.
  • the Ni mask is applied to both the outer surface and the inner surface of the product shape body.
  • the Ni surface is applied to the inner surface of the product shape
  • the Ni surface, the Zn alloy plating or Zn surface, and the chromate treatment are applied to the outer surface of the product shape.
  • An organic coating process is performed.
  • post-processing of the surface treatment is performed to obtain a fuel delino linophil 1 as a finished product.
  • the product shape is subjected to electroless Ni plating.
  • Ni plating can also be applied to the surface of the brazing material, and it is not necessary to perform new bending, etc., so that cracking does not occur even when the thickness of the Ni plating is large. Gasoline can be prevented from directly touching the steel material inside, and the corrosion resistance is reduced on the outer surface because the Ni layer, which is the barrier layer, is interrupted.
  • the Ni plating is an electroless plating, by performing a mechanical relative movement between the Ni plating liquid and the product shape without disposing an electrode, Inner surface of product It can be subjected to a uniform dark circles without N i plated.
  • the pipe molded product is composed of an electroless Ni plating Ni layer 11 formed on the outer surface and the inner surface of the steel material 10, and a Ni plating layer 11 formed on the Ni material.
  • the Zn plating layer 12 formed by the formed Zn plating or Zn alloy alloy, the chromate treatment layer 13 formed on the Zn plating layer 12, and the chromate treatment layer 13 formed on the Zn plating layer 13 And an organic coating treatment layer 14 formed.
  • the outer surface of the product is treated with Zn alloy plating or Zn plating, chromate treatment, and organic coating treatment only on the outer surface of the product. Performance can be efficiently enhanced.
  • the molded pipe is provided with a Ni plating layer 11 made of an electroless Ni plating on the inner surface of the steel 10 and a Ni plating made of the electroless Ni plating on the outer surface of the steel 10.
  • the pipe molded product is not limited to a tubular one such as a cylindrical tube, but may be any one having a cavity (dent) formed therein. It may have openings at both ends.
  • the fuel delivery pipe 1 is taken as an example of the high corrosion resistant pipe, but the high corrosion resistance pipe is not limited to this, and any pipe having a recess therein may be used. Further, the fuel delivery pipe is not limited to the cylindrical pipe shown in FIG. 1, but may be formed in a rectangular parallelepiped by sheet metal and have openings at both ends.
  • the steel material may be iron or an alloy of iron and another metal as long as it is an iron material that corrodes when it comes into direct contact with gasoline or the like.
  • the Zn plating may be a Zn alloy or a plating of Zn metal.
  • a completed shape is formed by processing and forming a steel material, and the completed shape is subjected to electroless Ni plating. Things can be manufactured. Further, by forming a Zn plating layer, a chromate treatment layer, and an organic coating treatment layer on the electroless Ni plating Ni plating layer, a highly corrosion resistant pipe molded product can be supplied.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemically Coating (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un produit tubulaire, tel qu'un conduit d'alimentation en combustible, présentant une partie tubulaire, lequel procédé permet un nickelage de la surface du matériau de brasage au niveau d'une partie soudée afin d'éviter les fissurations dans le revêtement. Ce procédé se caractérise en ce qu'il consiste à former un corps complet, afin de former le produit tubulaire, en travaillant et façonnant des matériaux en acier et en réalisant un nickelage non électrolytique du corps complet par immersion du corps complet dans un bain de nickelage.
PCT/JP2002/007454 2001-07-23 2002-07-23 Procede de fabrication d'un produit tubulaire et produit tubulaire WO2003010356A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-221559 2001-07-23
JP2001221559A JP2003034877A (ja) 2001-07-23 2001-07-23 パイプ成形物の製造方法及びパイプ成形物

Publications (1)

Publication Number Publication Date
WO2003010356A1 true WO2003010356A1 (fr) 2003-02-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/007454 WO2003010356A1 (fr) 2001-07-23 2002-07-23 Procede de fabrication d'un produit tubulaire et produit tubulaire

Country Status (2)

Country Link
JP (1) JP2003034877A (fr)
WO (1) WO2003010356A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2453039A1 (fr) * 2010-11-12 2012-05-16 Otics Corporation Procédé de fabrication de pièce de système de carburant et pièce de système de carburant
US9012031B2 (en) 2010-07-23 2015-04-21 Usui Kokusai Sangyo Kaisha Limited Steel fuel conveying pipe
CN110226032A (zh) * 2017-02-28 2019-09-10 臼井国际产业株式会社 钢制燃料压送配管的制造方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4789656B2 (ja) * 2006-03-08 2011-10-12 マルヤス工業株式会社 表面処理方法
JP2011052606A (ja) * 2009-09-02 2011-03-17 Otics Corp フューエルデリバリパイプ及びその製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH036049U (fr) * 1989-06-06 1991-01-22
JPH08188898A (ja) * 1995-01-11 1996-07-23 Kobe Steel Ltd 電気亜鉛めっき鋼板およびその製法
JPH11117826A (ja) * 1997-10-09 1999-04-27 Usui Internatl Ind Co Ltd フューエル・デリバリ・パイプ及びその製造方法
JPH11200070A (ja) * 1998-01-16 1999-07-27 Nippon Steel Corp 溶融Ｚｎ系合金めっき鋼線
JP2001081538A (ja) * 1999-09-10 2001-03-27 Nippon Steel Corp 耐食性に優れた溶融めっき鋼板

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61222736A (ja) * 1985-03-28 1986-10-03 臼井国際産業株式会社 耐食性被覆鋼管およびその被覆形成方法
JPS6233793A (ja) * 1985-08-05 1987-02-13 Usui Internatl Ind Co Ltd 耐食性重合被覆鋼材
JPH0640398Y2 (ja) * 1985-11-05 1994-10-19 臼井国際産業株式会社 フューエル・デリバリパイプと枝管接続用分岐筒金具との接続構造
JPH0543355Y2 (fr) * 1989-01-13 1993-11-01

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH036049U (fr) * 1989-06-06 1991-01-22
JPH08188898A (ja) * 1995-01-11 1996-07-23 Kobe Steel Ltd 電気亜鉛めっき鋼板およびその製法
JPH11117826A (ja) * 1997-10-09 1999-04-27 Usui Internatl Ind Co Ltd フューエル・デリバリ・パイプ及びその製造方法
JPH11200070A (ja) * 1998-01-16 1999-07-27 Nippon Steel Corp 溶融Ｚｎ系合金めっき鋼線
JP2001081538A (ja) * 1999-09-10 2001-03-27 Nippon Steel Corp 耐食性に優れた溶融めっき鋼板

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9012031B2 (en) 2010-07-23 2015-04-21 Usui Kokusai Sangyo Kaisha Limited Steel fuel conveying pipe
EP2453039A1 (fr) * 2010-11-12 2012-05-16 Otics Corporation Procédé de fabrication de pièce de système de carburant et pièce de système de carburant
US9371587B2 (en) 2010-11-12 2016-06-21 Otics Corporation Method of manufacturing fuel system part and fuel system part
CN110226032A (zh) * 2017-02-28 2019-09-10 臼井国际产业株式会社 钢制燃料压送配管的制造方法

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