EP1524333A1 - Procédé d'application d'un revêtement - Google Patents

Procédé d'application d'un revêtement Download PDF

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Publication number
EP1524333A1
EP1524333A1 EP04104500A EP04104500A EP1524333A1 EP 1524333 A1 EP1524333 A1 EP 1524333A1 EP 04104500 A EP04104500 A EP 04104500A EP 04104500 A EP04104500 A EP 04104500A EP 1524333 A1 EP1524333 A1 EP 1524333A1
Authority
EP
European Patent Office
Prior art keywords
coating
casting
applying
wear
alloy
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.)
Withdrawn
Application number
EP04104500A
Other languages
German (de)
English (en)
Inventor
Gopal Subray Revankar
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.)
Deere and Co
Original Assignee
Deere and Co
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 Deere and Co filed Critical Deere and Co
Publication of EP1524333A1 publication Critical patent/EP1524333A1/fr
Withdrawn legal-status Critical Current

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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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • 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
    • 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
    • C23C4/18—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
    • C21D3/02—Extraction of non-metals
    • C21D3/04—Decarburising

Definitions

  • the invention relates to a method for applying a preferably feinpudrige, wear and / or corrosion resistant alloy coating a surface of a casting to an area of increased To obtain wear and / or corrosion resistance.
  • Machine parts or components in particular those of Vehicles and equipment of agriculture, forestry and construction and of mining, are prone to general wear and tear, as well as by corrosion and mainly by cooperative effects of erosion and corrosion wear out.
  • Change that reduces wear is often a Sinter coating preferred, if the appearance as well as the Fine tolerances no big demands are made. This is because such a coating quickly and can be carried out inexpensively and a good Wear and corrosion resistance as well as a high Has impact resistance and a very good metallurgical Can form a connection with the steel support material.
  • Such Process is exemplified by US-A-5,879,732 described.
  • the method creates an area increased wear and / or corrosion resistance.
  • the Procedure is first a surface area of the casting up decarburized to an effective depth. This decarburization, the for example, by suitable heat treatment of the Casting can be achieved takes place before the Coating or a final coating preparatory substrate is applied to the casting. at This coating is, for example, a Mud or even a powder or any other suitable Material comprising the alloy.
  • the coating can In addition, other ingredients, such as in the Art fluxes, etc. included.
  • the coating will be on the decarburized surface area by means of a method or Applied process that causes the coating to adheres to the component.
  • the process can be any suitable coating methods, for example a Method of chrome plating, act.
  • the fine powder, wear-resistant alloy coating on at least one surface area of the casting applied and the coating by heating the Casting and the coating to a temperature below fused to the melting point of the casting, but the it is sufficient to fuse the alloy.
  • a Process is for example by a method for sintering represents.
  • the coating may be in any suitable manner be applied to the area or the surface.
  • an aqueous sludge applied which contains the alloy or by the Alloy and possibly other constituents is formed.
  • the coating can also be achieved by a thermal spraying or spray method are applied.
  • an effective depth of about 0.25 mm proved to be particularly advantageous.
  • the effective depth deviate from this preferred depth.
  • the effective depth can then be determined by suitable experiments become.
  • the effective depth is between about 0.25 and 0.5 mm.
  • FIGS. 1 to 3 a schematic cross section of a casting 10 made of cast iron which forms a carrier material is shown on the one sludge coating 12 was applied.
  • the Coating 12 is preferably an aqueous solution a polyvinyl alcohol (PVA) used as a binder of a aqueous sludge of an alloy without a flux is used as disclosed in US-B-5,879,743 and which in the present application by this reference is included.
  • the casting 10 is here as a Sphotussteil described, the free graphite or carbon in the form of beads 15, which in the casting 10th are distributed, with some of the beads 14 at a Interface 16 between the casting 10 and the coating 12 are arranged.
  • the Principle of the invention as described below equally on a casting 10 made of a cast iron can be applied, in which the graphite or the carbon in the form of flakes / lamellae.
  • the casting 10 has a melting point between 1150 ° and 1260 ° C on.
  • the fusion or sintering temperature of Coating 12 is between 1085 ° and 1100 ° C, ie below the melting point of the casting 10, but still relatively high. It was found out in this Melting temperature range of beads 14 made of carbon at the Interface 16 in a contact surface or an inner layer 20th the coating 12 diffuse and thus the composition the inner layer 20 change so that they have a higher Having a carbon content which is one generally has lower melting point than the alloy in the outer layer 22 of the coating 12.
  • the outer layer 22 of the Coating 12 When the melting or Sintered temperature is reached, the outer layer 22 of the Coating 12 thus begin in a solid or semi-solid Material to sinter, while the inner layer 20 of the Coating 12 becomes liquid and from the boundary layer flows out, as shown at 24 in Figure 3, and Make laugh and globules.
  • the desired Dimension of the casting 10 with coating 12 is in the Figures 1 and 2 Shown, it can be seen that the Leakage of the liquefied coating 12, as shown in FIG 3 results in that the outer limits 26 of the coating 12 below the original limits "Schrupfen", while the boundaries of the casting 10 under the originally applied coating 12 based on the original dimensions "grow". Accordingly, the go desired dimension of the component lost and the component must, if the measurements are critical, they will be scrapped.
  • FIG taken shows a casting 10 ', which before the Applying the coating 12 from mud to a depth d was decarburized. Since no or little free carbon or Graphite exists in the boundary region 16 becomes little or no Carbon absorbed by the coating 12, and consequently remains the composition and therefore the melting point of inner layer of the coating 12 adjacent to the Boundary region 16 with respect to the remaining coating 12 unchanged. If this is the case, the whole will Coating 12 without melting and leakage of the Coating 12 at the interface 16 between the casting and the coating merge or sinter.
  • a decarburization process is the Adhesion of other types of coating, such as a Chrome plating, can support.
  • the coatings can, but do not necessarily have a fusion of the coating lock in.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Mold Materials And Core Materials (AREA)
  • Coating With Molten Metal (AREA)
EP04104500A 2003-09-19 2004-09-17 Procédé d'application d'un revêtement Withdrawn EP1524333A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US666648 2003-09-19
US10/666,648 US20050064095A1 (en) 2003-09-19 2003-09-19 Method for applying wear and corrosion resistant coating to cast iron

Publications (1)

Publication Number Publication Date
EP1524333A1 true EP1524333A1 (fr) 2005-04-20

Family

ID=34313162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04104500A Withdrawn EP1524333A1 (fr) 2003-09-19 2004-09-17 Procédé d'application d'un revêtement

Country Status (5)

Country Link
US (1) US20050064095A1 (fr)
EP (1) EP1524333A1 (fr)
CN (1) CN1598056A (fr)
BR (1) BRPI0403893A (fr)
CA (1) CA2481717A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9003681B2 (en) * 2006-09-18 2015-04-14 Deere & Company Bucket teeth having a metallurgically bonded coating and methods of making bucket teeth
US9976664B2 (en) 2010-11-05 2018-05-22 Hamilton Sundtrand Corporation Furnace braze deposition of hardface coating on wear surface
DE102011075821A1 (de) * 2011-05-13 2012-11-15 Robert Bosch Gmbh Bremsscheibe und Verfahren zum Herstellen einer Bremsscheibe
US9283621B2 (en) 2012-06-21 2016-03-15 Deere & Company Method for forming a composite article
CN108441860B (zh) * 2018-06-29 2019-06-11 北京梦之墨科技有限公司 一种室温自固化的防腐涂层材料及其使用方法
US11103944B2 (en) 2019-08-12 2021-08-31 Deere & Company Self-sharpening cutting tooth for a felling apparatus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1446094A1 (de) * 1961-06-23 1969-03-27 Alloy Surfaces Co Inc Verfahren und Vorrichtung zum Inchromieren
GB1406112A (en) * 1971-07-20 1975-09-17 Albright & Wilson Chromising ferrous metal substrates
JPS56105470A (en) * 1980-01-24 1981-08-21 Sumitomo Metal Ind Ltd Production of steel material having excellent resistance against steam oxidation
WO1982003027A1 (fr) * 1981-02-26 1982-09-16 Baldi Alfonso L Revetement par diffusion et produits ainsi traites
WO1998008639A1 (fr) * 1996-08-28 1998-03-05 Deere & Company Procede de rechargement d'une surface metallique
JP2001038791A (ja) * 1999-07-28 2001-02-13 Toshiba Mach Co Ltd 耐食性及び耐摩耗性を備えた中空部材の製造方法
EP1342651A2 (fr) * 2002-03-06 2003-09-10 Deere & Company Axe d'articulation pour chenille et sa méthode de fabrication

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774686A (en) * 1952-01-08 1956-12-18 Kaiser Aluminium Chem Corp Hot dip aluminum coating process
US4075392A (en) * 1976-09-30 1978-02-21 Eutectic Corporation Alloy-coated ferrous metal substrate
JP3093123B2 (ja) * 1995-03-29 2000-10-03 トヨタ自動車株式会社 鋳鉄歯車の製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1446094A1 (de) * 1961-06-23 1969-03-27 Alloy Surfaces Co Inc Verfahren und Vorrichtung zum Inchromieren
GB1406112A (en) * 1971-07-20 1975-09-17 Albright & Wilson Chromising ferrous metal substrates
JPS56105470A (en) * 1980-01-24 1981-08-21 Sumitomo Metal Ind Ltd Production of steel material having excellent resistance against steam oxidation
WO1982003027A1 (fr) * 1981-02-26 1982-09-16 Baldi Alfonso L Revetement par diffusion et produits ainsi traites
WO1998008639A1 (fr) * 1996-08-28 1998-03-05 Deere & Company Procede de rechargement d'une surface metallique
JP2001038791A (ja) * 1999-07-28 2001-02-13 Toshiba Mach Co Ltd 耐食性及び耐摩耗性を備えた中空部材の製造方法
EP1342651A2 (fr) * 2002-03-06 2003-09-10 Deere & Company Axe d'articulation pour chenille et sa méthode de fabrication

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 005, no. 180 (C - 079) 19 November 1981 (1981-11-19) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 19 5 June 2001 (2001-06-05) *

Also Published As

Publication number Publication date
CA2481717A1 (fr) 2005-03-19
CN1598056A (zh) 2005-03-23
BRPI0403893A (pt) 2005-06-07
US20050064095A1 (en) 2005-03-24

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