WO2011108349A1 - Procédé de traitement thermique d'une pièce métallique - Google Patents

Procédé de traitement thermique d'une pièce métallique Download PDF

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Publication number
WO2011108349A1
WO2011108349A1 PCT/JP2011/053043 JP2011053043W WO2011108349A1 WO 2011108349 A1 WO2011108349 A1 WO 2011108349A1 JP 2011053043 W JP2011053043 W JP 2011053043W WO 2011108349 A1 WO2011108349 A1 WO 2011108349A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal member
fine particles
inorganic fine
quenching
coating film
Prior art date
Application number
PCT/JP2011/053043
Other languages
English (en)
Japanese (ja)
Inventor
さやか 渡邉
英夫 金森
克実 市谷
Original Assignee
出光興産株式会社
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 出光興産株式会社 filed Critical 出光興産株式会社
Publication of WO2011108349A1 publication Critical patent/WO2011108349A1/fr

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Classifications

    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
    • 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

Definitions

  • the present invention relates to a heat treatment method for a metal member, and more specifically, a heat treatment method for a metal member that can be suitably employed as a quenching treatment for a metal member formed by a forming method such as casting, forging, rolling, or machining. About.
  • the quenching of metal members is typically quenching for rapid hardening, typically iron-based materials, or quenching for solution, typically aluminum-based materials, and both have unnecessary phases during cooling. Rapid cooling to prevent generation.
  • a quenching method a method of rapidly cooling by immersing a high-temperature metal member in a coolant such as water or oil is widely performed.
  • a high-temperature metal member is immersed in the coolant, vapor generated on the surface of the metal member forms a film and covers the surface of the metal member.
  • an object of this invention is to provide the heat processing method of the metal member which is excellent in the cooling performance in quenching while preventing damage to a metal.
  • the present invention provides the following metal member heat treatment method. That is, the heat treatment method for a metal member of the present invention includes a coating film forming step of applying a liquid containing inorganic fine particles to a metal member and drying to obtain a metal member with a coating film, and cooling after heating the metal member with a coating film. A quenching step of immersing in a liquid and quenching rapidly.
  • the amount of the inorganic fine particles adhered per unit area is 0.5 mg / cm 2 or more and 15 mg / cm 2 or less.
  • the inorganic fine particles are preferably amorphous silica fine particles.
  • the average particle diameter of the inorganic fine particles is 1 ⁇ m or more and 10 ⁇ m or less.
  • the solid content concentration of the inorganic fine particle-containing liquid is preferably 20% by mass or more and 95% by mass or less.
  • the heat treatment method for a metal member of the present invention includes a coating film forming step of applying an inorganic fine particle-containing liquid to a metal member and drying to obtain a metal member with a coating film; A quenching step of immersing in and quenching rapidly.
  • the inorganic fine particles used in the heat treatment method for a metal member of the present invention and the inorganic fine particle-containing liquid containing the fine particles will be described.
  • the inorganic fine particles used in the present invention include silica fine particles, alumina fine particles, titania fine particles, zirconia fine particles, metal oxide fine particles such as zinc, and carbon fine particles.
  • silica fine particles are preferable, and amorphous silica fine particles are more preferable.
  • these inorganic type fine particles may be used individually by 1 type, and may be used in combination of 2 or more type. Further, these inorganic fine particles may be subjected to a surface coating treatment for the purpose of improving dispersibility.
  • the average particle diameter of the inorganic fine particles is preferably 1 ⁇ m or more and 10 ⁇ m or less, and more preferably 2 ⁇ m or more and 5 ⁇ m or less, from the viewpoint of cooling performance in quenching.
  • Such an average particle diameter can be measured by, for example, a light scattering method.
  • the inorganic fine particle-containing liquid used in the present invention is a liquid containing the inorganic fine particles.
  • the inorganic fine particles are dispersed in a dispersion medium.
  • the dispersion medium include water; alcohols such as methanol, ethanol, isopropanol, and n-butanol; polyhydric alcohols such as ethylene glycol and derivatives thereof; ketones such as methyl ethyl ketone, methyl isobutyl ketone, and dimethylacetamide; Esters: Nonpolar solvents such as toluene and xylene.
  • These dispersion media may be used individually by 1 type, and may be used in combination of 2 or more type.
  • the inorganic fine particle-containing liquid may further contain a binder.
  • the binder include a synthetic resin and an aqueous emulsion resin.
  • the synthetic resin include alkyd resin, amino alkyd resin, acrylic resin, phenol resin, urea resin, melamine resin, epoxy resin, polyurethane, polyvinyl chloride, and polyvinyl acetate.
  • the water-based emulsion resin include silicon acrylic emulsion, acrylic emulsion, urethane emulsion, and urethane acrylic emulsion.
  • the solid content concentration of the inorganic fine particle-containing liquid is preferably 20% by mass or more and 95% by mass or less, and preferably 50% by mass or more and 95% by mass or less from the viewpoints of coatability and performance of the obtained coating film. Is more preferable, and 70% by mass or more and 90% by mass or less is particularly preferable.
  • the inorganic fine particle-containing liquid is applied to the metal member.
  • the method for applying the inorganic fine particle-containing liquid is not particularly limited, and for example, a method using a roll coater, a reverse roll coater, a gravure coater, a knife coater, a bar coater, a spray coater, a brush, or the like can be employed.
  • the amount of the inorganic fine particles adhered per unit area is preferably 0.5 mg / cm 2 or more and 15 mg / cm 2 or less, preferably 1 mg / cm 2 or more and 10 mg / cm 2 or less from the viewpoint of cooling performance in quenching. More preferably, it is more preferably 2 mg / cm 2 or more and 5 mg / cm 2 or less. If the adhesion amount is equal to or higher than the lower limit, it functions as a film of inorganic fine particles, so that sufficient cooling performance in quenching can be ensured. There is no problem such as peeling.
  • the metal member used in the present invention is not particularly limited. Moreover, it does not specifically limit as a material of the said metal member, A well-known metal and alloy can be used suitably. Examples of the material of the metal member include metals such as iron, magnesium, aluminum, chromium, manganese, nickel, copper, and zinc, and alloys made of these metals.
  • the inorganic fine particle-containing liquid is applied to the metal member and then dried to obtain a coated metal member.
  • the drying conditions are not particularly limited.
  • the drying temperature is usually ⁇ 10 ° C. or more and 500 ° C. or less, preferably 10 ° C. or more and 300 ° C. or less.
  • the drying time is usually 5 minutes to 50 hours, preferably 10 minutes to 10 hours.
  • the coated metal member is heated and then immersed in a cooling liquid to be rapidly cooled.
  • the temperature of the metal member with a coating during heating is usually 600 ° C. or higher and 1200 ° C. or lower, preferably 800 ° C. or higher and 1050 ° C. or lower.
  • the temperature of the coolant is usually 60 ° C. or higher and 200 ° C. or lower, preferably 80 ° C. or higher and 160 ° C. or lower, if it is heat treated oil. If it is water and a water-based quenching liquid, it is 20 degreeC or more and 100 degrees C or less normally, Preferably it is 30 degreeC or more and 40 degrees C or less.
  • the cooling liquid used in the present invention is not particularly limited, and a known cooling liquid used for quenching can be appropriately used.
  • a cooling liquid include water, heat-treated oil, and aqueous quenching liquid.
  • the heat-treated oil contains mineral oil, synthetic oil and the like.
  • the mineral oil include paraffin-based mineral oil, intermediate-based mineral oil, and naphthene-based mineral oil.
  • Synthetic oils include, for example, polybutene, polyolefins [ ⁇ -olefin homopolymers and copolymers (for example, ethylene- ⁇ -olefin copolymers)], various esters (for example, polyol esters, dibasic acid esters). And phosphoric acid esters), various ethers (for example, polyphenyl ether), polyglycols, alkylbenzenes, alkylnaphthalenes, and the like.
  • such heat-treated oil may further contain a known additive as required.
  • aqueous quenching liquid examples include water-soluble polymers such as polyalkylene glycol, polyvinyl alcohol, polyvinyl pyrrolidone, sodium polyacrylate, sodium polyisobutylene maleate, and polyethylene glycol dissolved in water.
  • water-soluble polymers such as polyalkylene glycol, polyvinyl alcohol, polyvinyl pyrrolidone, sodium polyacrylate, sodium polyisobutylene maleate, and polyethylene glycol dissolved in water.
  • the cooling performance in each example was evaluated by the following method. ⁇ Cooling performance> The cooling performance in quenching was evaluated in accordance with Method A described in JIS K 2242. That is, after heating the sample to 810 ° C., it was put into a cooling liquid (water, temperature: 40 ° C.), and the cooling curve of the sample was measured. The cooling time (unit: second) required for cooling from 800 ° C. to 200 ° C. was read from the obtained cooling curve, and the cooling performance was evaluated based on the cooling time. In addition, it shows that cooling performance is so high that cooling time is short.
  • Example 1 On the surface of a cylindrical metal member (material: silver, diameter: 10 mm, length: 30 mm), liquid containing inorganic fine particles (manufactured by Aqua West, product name “Ceramic Cover CC100”, inorganic fine particles: amorphous silica fine particles , Solid content concentration: 87 mass%) was applied so that the adhesion amount of inorganic fine particles was 1.0 mg / cm 2 and dried at a temperature of 23 ° C. for 10 hours to obtain a metal member with a coating film It was. Using the obtained metal member with a coating film as a sample, the cooling performance was evaluated by the method described above, and the results are shown in Table 1. In addition, Table 1 shows the amount of inorganic fine particles attached in Example 1.
  • Example 2 A coated metal member was obtained in the same manner as in Example 1 except that the inorganic fine particle-containing liquid was applied so that the amount of the inorganic fine particles adhered was 2.6 mg / cm 2 . Using the obtained metal member with a coating film as a sample, the cooling performance was evaluated by the method described above, and the results are shown in Table 1. Table 1 shows the amount of inorganic fine particles attached in Example 2.
  • Example 3 A metal member with a coating film was obtained in the same manner as in Example 1 except that the liquid containing inorganic fine particles was applied so that the amount of the inorganic fine particles attached was 4.0 mg / cm 2 . Using the obtained metal member with a coating film as a sample, the cooling performance was evaluated by the method described above, and the results are shown in Table 1. In addition, Table 1 shows the adhesion amount of inorganic fine particles in Example 3.
  • Example 4 A metal member with a coating film was obtained in the same manner as in Example 1 except that the liquid containing inorganic fine particles was applied so that the adhesion amount of the inorganic fine particles was 13.2 mg / cm 2 . Using the obtained metal member with a coating film as a sample, the cooling performance was evaluated by the method described above, and the results are shown in Table 1. Table 1 shows the amount of inorganic fine particles adhered in Example 4.
  • Example 5 Inorganic fine particles containing liquid in place of carburizing agents with (Heatbath / ParkMetallurgical Co., product name "NO-CARB”), a carburizing agent so that the amount of deposition of the anti-carburizing agent is 13.2 mg / cm 2
  • a coated metal member was obtained in the same manner as in Example 1 except that the coating was applied.
  • the cooling performance was evaluated by the method described above, and the results are shown in Table 1. Further, Table 1 shows the adhesion amount of the carburizing agent in Example 5.
  • the heat treatment method for a metal member of the present invention can be suitably used as a quenching treatment for a metal member formed by a forming method such as casting, forging, rolling, or machining.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé de traitement thermique d'une pièce métallique. Ce procédé comprend une étape de formation de film dans laquelle une pièce métallique est revêtue d'un liquide contenant des particules inorganiques et séchée de façon à obtenir une pièce métallique revêtue, et une étape de trempage dans laquelle, après chauffage, la pièce métallique revêtue mentionnée ci-dessus est immergée dans un fluide de refroidissement et rapidement refroidie.
PCT/JP2011/053043 2010-03-01 2011-02-14 Procédé de traitement thermique d'une pièce métallique WO2011108349A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010044110A JP2011179067A (ja) 2010-03-01 2010-03-01 金属部材の熱処理方法
JP2010-044110 2010-03-01

Publications (1)

Publication Number Publication Date
WO2011108349A1 true WO2011108349A1 (fr) 2011-09-09

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WO (1) WO2011108349A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5987675B2 (ja) * 2011-12-26 2016-09-07 Ｊｆｅスチール株式会社 鋼材の冷却方法および冷却設備

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07252522A (ja) * 1994-03-11 1995-10-03 Idemitsu Kosan Co Ltd 被熱処理物およびその熱処理方法
JP2003027132A (ja) * 2001-07-12 2003-01-29 Kobe Steel Ltd 焼き入れ後の塗装密着性に優れた鋼板熱処理硬化方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07252522A (ja) * 1994-03-11 1995-10-03 Idemitsu Kosan Co Ltd 被熱処理物およびその熱処理方法
JP2003027132A (ja) * 2001-07-12 2003-01-29 Kobe Steel Ltd 焼き入れ後の塗装密着性に優れた鋼板熱処理硬化方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MICHIHARU NARASAKI ET AL.: "Effect of surface coatings on cooling characteristics during water quenching of hot metals", NETSUSHORI, vol. 28, no. 5, 28 October 1988 (1988-10-28), pages 279 - 285 *

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