CN112575333A - Impurity-removing surface heat treatment process for copper artware - Google Patents

Impurity-removing surface heat treatment process for copper artware Download PDF

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Publication number
CN112575333A
CN112575333A CN202011331891.0A CN202011331891A CN112575333A CN 112575333 A CN112575333 A CN 112575333A CN 202011331891 A CN202011331891 A CN 202011331891A CN 112575333 A CN112575333 A CN 112575333A
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CN
China
Prior art keywords
copper
finished product
semi
heat treatment
placing
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Pending
Application number
CN202011331891.0A
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Chinese (zh)
Inventor
熊天寿
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Jiangxi Tongyinxiang Culture & Creativity Co ltd
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Jiangxi Tongyinxiang Culture & Creativity Co ltd
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Priority to CN202011331891.0A priority Critical patent/CN112575333A/en
Publication of CN112575333A publication Critical patent/CN112575333A/en
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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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • 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
    • C21D1/06—Surface hardening
    • C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
    • C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/02—Pretreatment of the material to be coated
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/032—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

The invention provides an impurity-removing surface heat treatment process for copper artware, which comprises the following steps: soaking the polished copper process semi-finished product in absolute ethyl alcohol, washing with absolute ethyl alcohol, and washing off part of impurities; and then placing the dried copper craft semi-finished product in a nitriding furnace, vacuumizing, introducing nitrogen or mixed gas of nitrogen and hydrogen, heating to 350-. The copper artware obtained by the method has smooth surface without salient points, high integral strength and high hardness, and is not easy to deform in the transportation process.

Description

Impurity-removing surface heat treatment process for copper artware
Technical Field
The invention relates to the field of copper artware production, in particular to an impurity-removing surface heat treatment process for a copper artware.
Background
The copper handicraft is named as copper handicraft and has bronze ware, Scotch and Pending, etc. and the copper ware is comparable to ancient Chinese copper ware in use scale, casting process, modeling art and variety.
With the development of times and science, the development of copper artware is promoted by the progress of science and technology, and the high requirement is provided for the surface cleanliness of the copper artware before being colored. The existing impurity removal and dust removal modes are mostly manually brushed by utilizing a brush, dust which is brushed up pollutes air, and dust impurities in all gaps of the copper artware cannot be removed by the brush in the complex shape of the copper artware, so that the copper artware is flawed in the upper color stage, and the integrity of the product is influenced. On the other hand, the existing copper artware is usually directly polished and colored after being poured and is not subjected to heat treatment, so that the overall strength and hardness are low, and the copper artware is easy to deform.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide an impurity-removing type surface heat treatment process for a copper handicraft, which can be used for carrying out surface impurity removal and surface heat treatment on the copper handicraft, so that the surface cleanliness of the copper handicraft is improved, the overall strength of the copper handicraft is improved, and deformation is prevented. In order to achieve the purpose, the invention adopts the following technical scheme:
(II) technical scheme
An impurity removal type surface heat treatment process for copper artware comprises the following steps:
step one, placing the polished copper process semi-finished product into absolute ethyl alcohol to be soaked for 20-30 min;
step two, taking out the soaked copper process semi-finished product, and washing the copper process semi-finished product by using absolute ethyl alcohol to wash down part of impurities;
placing the dried copper process semi-finished product in a nitriding furnace, vacuumizing to 10 < -2 > to 10 < -3 > Torr, introducing nitrogen or mixed gas of nitrogen and hydrogen to make the pressure in the furnace reach 3 < -8 > Torr, heating to 350-;
fourthly, placing the nitrided copper process semi-finished product in an induction heating surface quenching furnace, heating to 550-;
and fifthly, coloring, sealing wax and packaging the semi-finished product of the copper craft after induction heating and surface quenching to obtain a finished product of the copper craft.
Further, the heating mode of the induction heating surface quenching is from bottom to top.
(III) advantageous effects
Compared with the prior art, the method has obvious advantages and beneficial effects, and particularly, impurities on the surface of the copper artware are removed while surface heat treatment is carried out, so that the obtained copper artware has a smooth surface without salient points, high integral strength and high hardness, and is not easy to deform in the transportation process.
Detailed Description
Examples 1,
An impurity removal type surface heat treatment process for copper artware comprises the following steps:
step one, placing the polished copper process semi-finished product into absolute ethyl alcohol to be soaked for 20 min;
step two, taking out the soaked copper process semi-finished product, and washing the copper process semi-finished product by using absolute ethyl alcohol to wash down part of impurities;
step three, placing the dried copper process semi-finished product in a nitriding furnace, vacuumizing to 10-3Torr, introducing nitrogen to ensure that the pressure in the furnace reaches 3Torr and heating to 450 ℃, connecting the furnace body with an anode, connecting the copper process semi-finished product with a cathode, and conducting ion nitriding by applying 500V direct current voltage between the two electrodes;
fourthly, placing the nitrided copper process semi-finished product in an induction heating surface quenching furnace, carrying out induction heating surface quenching from bottom to top, and spraying water after heating to 550 ℃, wherein the induction frequency is 5000 Hz;
and fifthly, coloring, sealing wax and packaging the semi-finished product of the copper craft after induction heating and surface quenching to obtain a finished product of the copper craft.
Examples 2,
An impurity removal type surface heat treatment process for copper artware comprises the following steps:
step one, placing the polished copper process semi-finished product into absolute ethyl alcohol to be soaked for 30 min;
step two, taking out the soaked copper process semi-finished product, and washing the copper process semi-finished product by using absolute ethyl alcohol to wash down part of impurities;
step three, placing the dried copper process semi-finished product in a nitriding furnace, vacuumizing to 10-2Torr, then introducing mixed gas of nitrogen and hydrogen, wherein the mixed volume ratio is 9: 1, so that the air pressure in the furnace reaches 8Torr, heating to 350 ℃, then connecting the furnace body with an anode, connecting the copper process semi-finished product with a cathode, and conducting ion nitriding by introducing 800V direct current voltage between the two electrodes;
fourthly, placing the nitrided copper process semi-finished product in an induction heating surface quenching furnace, performing induction heating surface quenching from bottom to top, and spraying water after heating to 700 ℃, wherein the induction frequency is 3500 Hz;
and fifthly, coloring, sealing wax and packaging the semi-finished product of the copper craft after induction heating and surface quenching to obtain a finished product of the copper craft.
Examples 3,
An impurity removal type surface heat treatment process for copper artware comprises the following steps:
step one, placing the polished copper process semi-finished product into absolute ethyl alcohol to be soaked for 20-30 min;
step two, taking out the soaked copper process semi-finished product, and washing the copper process semi-finished product by using absolute ethyl alcohol to wash down part of impurities;
step three, placing the dried copper process semi-finished product in a nitriding furnace, vacuumizing to 10-2Torr, introducing nitrogen to ensure that the pressure in the furnace reaches 5Torr, heating to 400 ℃, connecting a furnace body with an anode, connecting the copper process semi-finished product with a cathode, and conducting ion nitriding by introducing 600V direct current voltage between the two electrodes;
fourthly, placing the nitrided copper process semi-finished product in an induction heating surface quenching furnace, carrying out induction heating surface quenching from bottom to top, and spraying water after heating to 620 ℃, wherein the induction frequency is 4000 Hz;
and fifthly, coloring, sealing wax and packaging the semi-finished product of the copper craft after induction heating and surface quenching to obtain a finished product of the copper craft.
The copper artware obtained by the three embodiments has smooth surface without salient points, high integral strength and high hardness, and is not easy to deform in the transportation process.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims (2)

1. An impurity-removing surface heat treatment process for copper artware, which is characterized by comprising the following steps:
step one, placing the polished copper process semi-finished product into absolute ethyl alcohol to be soaked for 20-30 min;
step two, taking out the soaked copper process semi-finished product, and washing the copper process semi-finished product by using absolute ethyl alcohol to wash down part of impurities;
step three, placing the dried copper process semi-finished product into a nitriding furnace, and vacuumizing to 10 DEG-2～10-3Torr, then introducing nitrogen or mixed gas of nitrogen and hydrogen to ensure that the air pressure in the furnace reaches 3-8Torr and heating to 450 ℃ of 350-;
fourthly, placing the nitrided copper process semi-finished product in an induction heating surface quenching furnace, heating to 550-;
and fifthly, coloring, sealing wax and packaging the semi-finished product of the copper craft after induction heating and surface quenching to obtain a finished product of the copper craft.
2. The impurity-removing surface heat treatment process for the copper artware according to claim 1, characterized in that: the heating mode of the induction heating surface quenching is from bottom to top.
CN202011331891.0A 2020-11-24 2020-11-24 Impurity-removing surface heat treatment process for copper artware Pending CN112575333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011331891.0A CN112575333A (en) 2020-11-24 2020-11-24 Impurity-removing surface heat treatment process for copper artware

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011331891.0A CN112575333A (en) 2020-11-24 2020-11-24 Impurity-removing surface heat treatment process for copper artware

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5558366A (en) * 1978-10-25 1980-05-01 Creusot Loire Improvement on chromization of steel by gas
JPS5993870A (en) * 1982-11-17 1984-05-30 Sanyo Electric Co Ltd Manufacture of vane for rotary compressor
JPS63310952A (en) * 1987-06-11 1988-12-19 Fukuhisa Matsuda Surface hardened copper alloy
JPH06128720A (en) * 1992-10-16 1994-05-10 Mitsubishi Heavy Ind Ltd Quick ionic nitriding induction hardening method
CN105386001A (en) * 2015-12-04 2016-03-09 太原理工大学 Preparation method for TiN/Ti composite permeable layer on surface of beryllium-copper alloy
CN106367712A (en) * 2016-09-19 2017-02-01 山东科技大学 Surface nitriding and quenching composite treatment technology of metal workpiece based on lubricant storage and secondary lubrication and product
CN106893822A (en) * 2015-12-18 2017-06-27 沈阳透平机械股份有限公司 Centrifugal compressor 35CrMoV teeth set or the ionic nitriding Technology for Heating Processing of ring gear
CN107841707A (en) * 2017-10-31 2018-03-27 沈阳透平机械股份有限公司 The deep ion nitriding process of 31CrMoV9 gears
JP2020147821A (en) * 2019-03-15 2020-09-17 株式会社デンソー Plasma nitriding method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5558366A (en) * 1978-10-25 1980-05-01 Creusot Loire Improvement on chromization of steel by gas
JPS5993870A (en) * 1982-11-17 1984-05-30 Sanyo Electric Co Ltd Manufacture of vane for rotary compressor
JPS63310952A (en) * 1987-06-11 1988-12-19 Fukuhisa Matsuda Surface hardened copper alloy
JPH06128720A (en) * 1992-10-16 1994-05-10 Mitsubishi Heavy Ind Ltd Quick ionic nitriding induction hardening method
CN105386001A (en) * 2015-12-04 2016-03-09 太原理工大学 Preparation method for TiN/Ti composite permeable layer on surface of beryllium-copper alloy
CN106893822A (en) * 2015-12-18 2017-06-27 沈阳透平机械股份有限公司 Centrifugal compressor 35CrMoV teeth set or the ionic nitriding Technology for Heating Processing of ring gear
CN106367712A (en) * 2016-09-19 2017-02-01 山东科技大学 Surface nitriding and quenching composite treatment technology of metal workpiece based on lubricant storage and secondary lubrication and product
CN107841707A (en) * 2017-10-31 2018-03-27 沈阳透平机械股份有限公司 The deep ion nitriding process of 31CrMoV9 gears
JP2020147821A (en) * 2019-03-15 2020-09-17 株式会社デンソー Plasma nitriding method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
胡光立等: "《钢的热处理原理和工艺》", 31 August 2016, 西北工业大学出版社 *

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