CN111235512A - Preparation method of copper cooling sheet - Google Patents

Preparation method of copper cooling sheet Download PDF

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Publication number
CN111235512A
CN111235512A CN202010182092.5A CN202010182092A CN111235512A CN 111235512 A CN111235512 A CN 111235512A CN 202010182092 A CN202010182092 A CN 202010182092A CN 111235512 A CN111235512 A CN 111235512A
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CN
China
Prior art keywords
copper
thermal spraying
nickel
copper cooling
sheet
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.)
Pending
Application number
CN202010182092.5A
Other languages
Chinese (zh)
Inventor
周冬运
陈志贵
马开永
蒋朝军
杨宗伦
尹伟
吴庆发
谭强
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.)
Chongqing Polycomp International Corp
Original Assignee
Chongqing Polycomp International Corp
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 Chongqing Polycomp International Corp filed Critical Chongqing Polycomp International Corp
Priority to CN202010182092.5A priority Critical patent/CN111235512A/en
Publication of CN111235512A publication Critical patent/CN111235512A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C19/00Alloys based on nickel or cobalt
    • C22C19/03Alloys based on nickel or cobalt based on nickel
    • C22C19/05Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/058Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06Metallic material
    • C23C4/08Metallic material containing only metal elements
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/137Spraying in vacuum or in an inert atmosphere

Abstract

The invention discloses a preparation method of a copper cooling sheet, which comprises the following steps: selecting and cutting copper materials; carrying out sand blasting treatment on the cut copper material; and carrying out surface thermal spraying on the copper material subjected to sand blasting treatment so as to form a nickel-based coating with a preset thickness on the surface of the copper material. The invention adopts a thermal spraying method to treat the surface of copper so as to adapt to heavy corrosion environments such as high temperature, high humidity, salt mist and the like. Compared with the electroplating method, the thermal spraying method has the advantages of less environmental pollution and low operation risk. Compared with the preparation of the ultrathin nickel strap, the cost is obviously reduced. The invention also discloses a copper cooling sheet prepared by the preparation method, and the copper cooling sheet also has the technical effects.

Description

Preparation method of copper cooling sheet
Technical Field
The invention relates to the technical field of surface treatment, in particular to a preparation method of a copper cooling sheet.
Background
The glass fiber strand forming and cooling device comprises a copper cooling sheet A and a cooling copper frame B, wherein the copper cooling sheet A is welded on the cooling copper frame B. Referring to fig. 1, fig. 1 is a schematic view of a partial structure of a glass fiber strand forming and cooling apparatus in the prior art. The cooling copper frame B is provided with a water inlet pipe and a water outlet pipe, the copper cooling sheet A is inserted between the discharge spouts, the heat of the glass fiber filament roots is transferred to the cooling copper frame B from the copper cooling sheet A and is taken away by cooling water, and the fibers are changed from a molten state to a solid state. The upper end of the cooling body is provided with a high-temperature bushing plate, and the lower end of the cooling body is provided with cooling water spray. Face to the corrosion factors of high temperature, high humidity, salt fog and the like.
The copper cooling plate A is generally a pure copper material, the using temperature is as high as 500-600 ℃ during the operation, and the copper is very easy to oxidize and corrode at the high temperature, so that the copper sheet can be oxidized and peeled off quickly under the condition, the cooling effect is influenced, and the production operation is influenced.
Therefore, the prior industry generally adopts nickel plating on the surface of copper or a nickel sheet to wrap and then weld on a copper frame. However, in the electroplating production, a large amount of dangerous chemical raw materials such as acid, alkali, heavy metal compounds and the like are used, and waste water, waste gas and waste residues polluting the environment are generated, which brings adverse effects on the safety and environmental protection of enterprises. In addition, the electroplating has high requirements on process parameters, and improper operation easily causes quality problems such as spots, bubbles, uneven thickness and the like. Also, the preparation of ultra-thin nickel ribbons is extremely difficult and costly.
In summary, how to effectively solve the problems of high surface treatment risk, high cost and the like of the copper cooling fin is a problem to be solved by those skilled in the art at present.
Disclosure of Invention
In view of the above, a first object of the present invention is to provide a method for manufacturing a copper cooling fin, which can effectively solve the problems of high risk and high cost of surface treatment of the copper cooling fin, and a second object of the present invention is to provide a copper cooling fin manufactured by the above manufacturing method.
In order to achieve the first object, the invention provides the following technical scheme:
a method for preparing a copper cooling plate comprises the following steps:
selecting and cutting copper materials;
carrying out sand blasting treatment on the cut copper material;
and carrying out surface thermal spraying on the copper material subjected to sand blasting treatment so as to form a nickel-based coating with a preset thickness on the surface of the copper material.
Preferably, in the above method for manufacturing a copper cooling fin, the surface thermal spraying step uses oxygen and one of propyne, propane, and kerosene as a spraying gas source.
Preferably, in the above method for manufacturing a copper cooling fin, the particle diameter of the spray material in the surface thermal spraying step is in the range of 5 to 45 μm.
Preferably, in the above method for manufacturing a copper cooling fin, the powder feeding amount in the surface thermal spraying step is in the range of 20 to 120 g/min.
Preferably, in the above method for preparing a copper cooling fin, the construction distance in the surface thermal spraying process is 150-300 mm.
Preferably, in the above method for manufacturing a copper cooling fin, the roughness is not less than 3.2Ra after the sand blasting.
Preferably, in the above method for manufacturing a copper cooling fin, the predetermined thickness is in a range of 100 μm to 300 μm.
Preferably, in the above method for manufacturing a copper cooling fin, the nickel-based coating is a nickel-chromium alloy coating, wherein the nickel content is 50% to 80% and the chromium content is 20% to 50% by mass.
By applying the preparation method of the copper cooling sheet provided by the invention, the copper material is selected and cut, the cut copper material is subjected to sand blasting treatment, and then the surface of the copper material subjected to sand blasting treatment is subjected to thermal spraying, so that a nickel-based coating with a preset thickness is formed on the surface of the copper material. The invention adopts a thermal spraying method to treat the surface of copper so as to adapt to heavy corrosion environments such as high temperature, high humidity, salt mist and the like. Compared with the electroplating method, the thermal spraying method has the advantages of less environmental pollution and low operation risk. Compared with the preparation of the ultrathin nickel strap, the cost is obviously reduced.
In order to achieve the second object, the invention further provides a copper cooling sheet prepared by any one of the preparation methods, which comprises a copper sheet main body and a nickel-based coating formed on the surface of the copper sheet main body. Because the preparation method has the technical effects, the copper cooling sheet prepared by the preparation method also has the corresponding technical effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a portion of a prior art apparatus for forming and cooling glass strands;
FIG. 2 is a schematic flow chart of a method for manufacturing a copper cooling plate according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention discloses a preparation method of a copper cooling sheet, which is used for reducing the danger and the cost of surface treatment of the copper cooling sheet.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2, fig. 2 is a schematic flow chart illustrating a method for manufacturing a copper cooling fin according to an embodiment of the present invention.
In one embodiment, the method for preparing the copper cooling fin provided by the invention comprises the following steps:
s1: selecting and cutting copper materials;
specifically, the cooling sheet base material is pure copper and is made of materials according to actual needs so as to meet the requirements of shape and size. The specific shape, size, etc. of the copper sheet is not limited herein.
S2: carrying out sand blasting treatment on the cut copper material;
and after cutting, the copper material is subjected to sand blasting to obtain good roughness, so that the subsequent thermal spraying treatment is facilitated, and the bonding strength of the coating is ensured. Specifically, the roughness is not less than 3.2Ra after the sand blasting.
S3: and carrying out surface thermal spraying on the copper material subjected to sand blasting treatment to form a nickel-based coating with a preset thickness on the surface of the copper material.
The surface is thermally sprayed to form a nickel-based coating, and the good corrosion resistance of the nickel-based coating is utilized to ensure the corrosion resistance of the copper cooling plate. Specifically, in the thermal spraying treatment process, the spraying process parameters can be set as follows:
in the surface thermal spraying process, oxygen and one of propyne, propane or kerosene are used as a spraying gas source. The air source can ensure effective spraying and has low cost.
In the surface thermal spraying process, the particle size range of the spraying material particles is 5-45 mu m, the particle size of the spraying material particles is limited in the range, and a good surface effect can be formed after spraying.
The powder feeding amount in the surface thermal spraying process is 20-120g/min, namely the powder feeding amount is controlled within the range of 20-120g/min in the spraying process so as to ensure the spraying effect.
The construction distance range in the surface thermal spraying process is 150-300 mm. The construction distance range and the distance between the spray nozzle of the spray gun and the workpiece, namely the distance between the copper material after the sand blasting treatment, are controlled within the range, and the thickness of the coating is controlled by combining the setting of parameters such as the powder feeding amount range and the like.
Specifically, the nickel-based coating is a nickel-chromium alloy coating, wherein the nickel content is 50-80% and the chromium content is 20-50% by mass percent. Of course, the total content of the components in the nichrome coating should be 100%. The nickel-chromium alloy has high corrosion resistance and high strength, so that the service life of the copper cooling sheet is further prolonged.
The coating thickness formed by surface thermal spraying can be in particular 100 μm to 300. mu.m. When the thickness of the coating is within the range, good corrosion resistance can be ensured, the strength of the coating is ensured, the connection strength with the substrate is high, and the cost can be considered at the same time.
In conclusion, the invention adopts the thermal spraying method to treat the copper surface so as to adapt to the heavy corrosion environments of high temperature, high humidity, salt mist and the like. Compared with the electroplating method, the thermal spraying method has the advantages of less environmental pollution and low operation risk. Compared with the preparation of the ultrathin nickel strap, the cost is obviously reduced.
In the above embodiment, step S3 may be followed by:
s4: and (5) hole sealing treatment.
That is, after the surface thermal spraying treatment is completed, the hole sealing treatment is performed on the copper cooling fin, and for the operation of the hole sealing treatment, reference is made to the prior art, and details are not described here. After the hole sealing treatment is finished, the copper cooling sheet and the copper frame can be connected in a conventional fixed connection mode such as welding. Then, high-temperature resistant organic silicon anticorrosive paint can be used for dip-coating to perform anticorrosive treatment, so that the glass fiber protofilament forming and cooling device with good performance is obtained.
The following describes the present scheme by taking two specific real-time modes as examples.
Example 1
For the preparation of 3 x 30 x 90mm copper cooling fins, the following steps were included:
s11: selecting proper copper materials, cutting and processing;
s12: carrying out sand blasting on the copper cooling sheet, wherein the roughness is not lower than 3.2Ra, and cleaning and blow-drying the copper sheet for later use;
s13: the equipment adopts kerosene type supersonic spraying equipment, the powder adopts chromium 25 nickel-based material, the granularity is 5-90 μm, the powder feeding amount is 60g/min, the construction distance is 200mm, the surface is subjected to thermal spraying, and the coating thickness is 150 μm.
S14: welding the copper cooling fin and the copper frame;
s15: the high-temperature resistant organic silicon anticorrosive paint is dip-coated for anticorrosive treatment.
Example 2
For the preparation of copper cooling fins with a specification of 3.5 x 30 x 100mm, the following steps were included:
s21: selecting proper copper materials, cutting and processing;
s22: carrying out sand blasting on the copper cooling sheet, wherein the roughness is not lower than 3.2Ra, and cleaning and blow-drying the copper sheet for later use;
s23: the equipment adopts plasma spraying equipment, the powder adopts a chromium 10 nickel-based material, the granularity is 20-90 mu m, the powder feeding amount is 70g/min, the construction distance is 100mm, the surface is subjected to thermal spraying, and the thickness of the coating is 250 mu m.
S24: welding the copper cooling fin and the copper frame;
s25: the high-temperature resistant organic silicon anticorrosive paint is dip-coated for anticorrosive treatment.
Based on the preparation method provided in the embodiment, the invention also provides a copper cooling sheet, which is prepared by any one of the preparation methods in the embodiment and comprises a copper sheet main body and a nickel-based coating formed on the surface of the copper sheet main body. Since the copper cooling plate is prepared by the preparation method in the above embodiment, please refer to the above embodiment for the beneficial effects of the copper cooling plate.
Specifically, the nickel-based coating is a nickel-chromium alloy coating, wherein the nickel content is 50-80% and the chromium content is 20-50% by mass percent. Of course, the total content of the components in the nichrome coating should be 100%. The nickel-chromium alloy has high corrosion resistance and high strength, so that the service life of the copper cooling sheet is further prolonged.
The coating thickness formed by surface thermal spraying can be in particular 100 μm to 300. mu.m. When the thickness of the coating is within the range, good corrosion resistance can be ensured, the strength of the coating is ensured, the connection strength with the substrate is high, and the cost can be considered at the same time.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A method for preparing a copper cooling plate is characterized by comprising the following steps:
selecting and cutting copper materials;
carrying out sand blasting treatment on the cut copper material;
and carrying out surface thermal spraying on the copper material subjected to sand blasting treatment so as to form a nickel-based coating with a preset thickness on the surface of the copper material.
2. The method for producing a copper cooling sheet according to claim 1, wherein oxygen and one of propyne, propane, or kerosene are used as a source gas for the surface thermal spraying.
3. The method for producing a copper cooling plate according to claim 1, wherein the particle diameter of the spray material in the surface thermal spraying step is in the range of 5 to 45 μm.
4. The method for producing a copper cooling fin according to claim 3, wherein the amount of powder fed in the surface thermal spraying process is in the range of 20 to 120 g/min.
5. The method for preparing a copper cooling fin according to claim 4, wherein the working distance in the surface thermal spraying process is 150-300 mm.
6. The method for producing a copper cooling sheet according to claim 5, wherein the roughness is not less than 3.2Ra after the blast treatment.
7. The method for manufacturing a copper cooling sheet according to claim 1, wherein the predetermined thickness is in a range of 100 μm to 300 μm.
8. The method for manufacturing a copper cooling plate according to any one of claims 1 to 7, wherein the nickel-based coating layer is a nichrome coating layer in which the content of nickel is 50% to 80% and the content of chromium is in the range of 20% to 50% by mass.
9. A copper cooling sheet manufactured by the manufacturing process according to any one of claims 1 to 8, comprising a copper sheet main body and a nickel-based coating layer formed on a surface of the copper sheet main body.
CN202010182092.5A 2020-03-16 2020-03-16 Preparation method of copper cooling sheet Pending CN111235512A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85108439A (en) * 1985-11-27 1987-06-17 北京有色金属研究总院 Spray coating materials for combined layers
JPH08187555A (en) * 1994-12-29 1996-07-23 Mishima Kosan Co Ltd Mold for continuous casting
CN103469143A (en) * 2013-10-09 2013-12-25 林金松 Thermal spraying nickel base material
CN104032256A (en) * 2014-06-16 2014-09-10 西安西工大超晶科技发展有限责任公司 Method for preparing wear-resisting corrosion-resisting nickel-based alloy coating
CN104561877A (en) * 2015-01-21 2015-04-29 福州大学 Thermal spraying nickel-based self-fused alloy amorphous coating
CN105110632A (en) * 2015-08-06 2015-12-02 重庆国际复合材料有限公司 Cooling device and preparation method thereof
US20200017949A1 (en) * 2017-02-14 2020-01-16 Ebara Environmental Plant Co., Ltd. Ni-BASED THERMAL SPRAYING ALLOY POWDER AND METHOD FOR MANUFACTURING ALLOY COATING

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85108439A (en) * 1985-11-27 1987-06-17 北京有色金属研究总院 Spray coating materials for combined layers
JPH08187555A (en) * 1994-12-29 1996-07-23 Mishima Kosan Co Ltd Mold for continuous casting
CN103469143A (en) * 2013-10-09 2013-12-25 林金松 Thermal spraying nickel base material
CN104032256A (en) * 2014-06-16 2014-09-10 西安西工大超晶科技发展有限责任公司 Method for preparing wear-resisting corrosion-resisting nickel-based alloy coating
CN104561877A (en) * 2015-01-21 2015-04-29 福州大学 Thermal spraying nickel-based self-fused alloy amorphous coating
CN105110632A (en) * 2015-08-06 2015-12-02 重庆国际复合材料有限公司 Cooling device and preparation method thereof
US20200017949A1 (en) * 2017-02-14 2020-01-16 Ebara Environmental Plant Co., Ltd. Ni-BASED THERMAL SPRAYING ALLOY POWDER AND METHOD FOR MANUFACTURING ALLOY COATING

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* Cited by examiner, † Cited by third party
Title
冶金工业出版社: "金属材料", 《矿冶科学与工程新进展 庆祝北京矿冶研究总院建院四十周年论文集 下》 *

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