CN113880607A - Ceramic resistor metal film cold spraying process - Google Patents
Ceramic resistor metal film cold spraying process Download PDFInfo
- Publication number
- CN113880607A CN113880607A CN202111285797.0A CN202111285797A CN113880607A CN 113880607 A CN113880607 A CN 113880607A CN 202111285797 A CN202111285797 A CN 202111285797A CN 113880607 A CN113880607 A CN 113880607A
- Authority
- CN
- China
- Prior art keywords
- ceramic resistor
- cold spraying
- full
- resistor matrix
- spraying equipment
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/88—Metals
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
Abstract
The invention discloses a cold spraying process of a ceramic resistor metal film, which comprises the following steps: (1) placing the ceramic resistor matrix in an oven for baking; (2) taking out the ceramic resistor matrix which is placed in the oven until being cooled, and then placing the ceramic resistor matrix in a storage bin of full-automatic cold spraying equipment; (3) arranging and feeding the ceramic resistor matrix into a clamp of full-automatic cold spraying equipment by a vibration feeding system; (4) putting the metal powder to be sprayed into a spray paint bin of full-automatic cold spraying equipment; (5) starting the full-automatic cold spraying equipment to a semi-automatic mode; (6) the full-automatic cold spraying equipment is manually controlled, the ceramic resistor matrix is rotated from left to right and then from right to left, and meanwhile, the full-automatic cold spraying equipment sprays the ceramic resistor matrix to enable the surface of the ceramic resistor matrix to be metalized. It adopts cold spraying device to directly spray metal powder on the ceramic resistor base body to form metal film layer, and its effect is good, efficiency is high, cost is low and its manufacture is convenient.
Description
The technical field is as follows:
the invention relates to the technical field of electrical components, in particular to a cold spraying process for a ceramic resistor metal film.
Background art:
ceramic is a non-metallic material, has very high mechanical strength, high temperature resistance, has advantages such as good coefficient of thermal expansion, is a fine carrier, among the ceramic resistor device of current, it is to plate a layer of single metal or metallic film cladding of alloy on the surface of ceramic body, and current mode is to adopt modes such as vacuum sputtering, chemical plating or silver thick liquid coating to carry out the cladding, and its is with high costs, the cladding is thin, and modes such as electroplating, serious to environmental pollution, environmental protection dimension problem are difficult to handle.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provides a cold spraying process for a metal film of a ceramic resistor, which adopts a cold spraying device to directly spray metal powder on a ceramic resistor matrix to form a metal film layer and has the advantages of good effect, high efficiency, low cost and convenient manufacture.
The scheme for solving the technical problems is as follows:
a cold spraying process for a ceramic resistor metal film comprises the following steps:
(1) placing the ceramic resistor matrix in an oven for baking;
(2) taking out the ceramic resistor matrix which is placed in the oven until being cooled, and then placing the ceramic resistor matrix in a storage bin of full-automatic cold spraying equipment;
(3) arranging and feeding the ceramic resistor matrix into a clamp of full-automatic cold spraying equipment by a vibration feeding system;
(4) putting the metal powder to be sprayed into a spray paint bin of full-automatic cold spraying equipment;
(5) starting the full-automatic cold spraying equipment to a semi-automatic mode;
(6) manually controlling full-automatic cold spraying equipment, rotating the ceramic resistor matrix from left to right and then from right to left, and spraying the ceramic resistor matrix by the full-automatic cold spraying equipment to metalize the surface of the ceramic resistor matrix;
(7) taking out the ceramic resistor substrate, measuring the resistance value, adjusting the spraying times according to the resistance value at the measured position, adjusting the value for multiple times to reach the required resistance value, editing the operation program of the full-automatic cold spraying equipment according to the finished spraying process of the ceramic resistor substrate, starting the full-automatic mode of the full-automatic cold spraying equipment, and realizing continuous spraying processing;
(8) taking out the ceramic resistor matrix after the metal film is sprayed, putting the ceramic resistor matrix into an oven, and baking and aging at constant temperature;
(9) and taking out the ceramic resistor matrix after the constant-temperature baking time is aged, and measuring the resistance value to reach the required resistance value, thus finishing spraying.
In the step (1), the ceramic resistor matrix is placed in an oven at 580-600 ℃ and baked for 2 hours.
The fully-automatic cold spraying equipment takes out the sprayed ceramic resistor matrix every 10 minutes of operation, carries out sampling detection and once resistance measurement to prevent the resistance from deviating, and immediately adjusts when the deviation is detected.
In the step (8), the oven is set to 260 to 280 ℃ and the baking is carried out for 3.5 hours.
The invention has the following outstanding effects:
compared with the prior art, the cold spraying device is adopted to directly spray the metal powder on the ceramic resistor matrix to form the metal film layer, and the cold spraying device has the advantages of good effect, high efficiency, low cost and convenient manufacture.
The specific implementation mode is as follows:
the present invention is described in detail below with reference to specific preferred embodiments so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the embodiments are only for illustrative purposes and are not intended to limit the scope of the present invention.
The embodiment provides a cold spraying process of a ceramic resistance metal film, which comprises the following steps:
(1) placing the ceramic resistor matrix in an oven for baking;
(2) taking out the ceramic resistor matrix which is placed in the oven until being cooled, and then placing the ceramic resistor matrix in a storage bin of full-automatic cold spraying equipment;
(3) arranging and feeding the ceramic resistor matrix into a clamp of full-automatic cold spraying equipment by a vibration feeding system;
(4) putting the metal powder to be sprayed into a spray paint bin of full-automatic cold spraying equipment;
(5) starting the full-automatic cold spraying equipment to a semi-automatic mode;
(6) manually controlling full-automatic cold spraying equipment, rotating the ceramic resistor matrix from left to right and then from right to left, and spraying the ceramic resistor matrix by the full-automatic cold spraying equipment to metalize the surface of the ceramic resistor matrix;
(7) taking out the ceramic resistor substrate, measuring the resistance value, adjusting the spraying times according to the resistance value at the measured position, adjusting the value for multiple times to reach the required resistance value, editing the operation program of the full-automatic cold spraying equipment according to the finished spraying process of the ceramic resistor substrate, starting the full-automatic mode of the full-automatic cold spraying equipment, and realizing continuous spraying processing;
(8) taking out the ceramic resistor matrix after the metal film is sprayed, putting the ceramic resistor matrix into an oven, and baking and aging at constant temperature;
(9) and taking out the ceramic resistor matrix after the constant-temperature baking time is aged, and measuring the resistance value to reach the required resistance value, thus finishing spraying.
In the step (1), the ceramic resistor matrix is placed in an oven at 580-600 ℃ and baked for 2 hours.
The fully-automatic cold spraying equipment takes out the sprayed ceramic resistor matrix every 10 minutes of operation, carries out sampling detection and once resistance measurement to prevent the resistance from deviating, and immediately adjusts when the deviation is detected.
In the step (8), the oven is set to 260 to 280 ℃ and the baking is carried out for 3.5 hours.
In the embodiment, the cold spraying principle is that after metal powder (metal powder is metal ultra-fine powder, the metal powder with the metal particle size of 5-50 microns, which can be single metal powder or alloy metal powder) is poured into a spraying material bin of full-automatic cold spraying equipment, it can be injected into the air flow by the equipment, the air flow and the particles are accelerated after being expanded after passing through the diffusion section of the Wal nozzle, which is accelerated to a supersonic velocity state (300-, the pressure and temperature of the ceramic resistor are reduced, the fixed particles impact the surface of the ceramic resistor substrate after leaving the nozzle to generate plastic deformation to form a lamination layer, so that the fixed particles are adhered to the surface of the ceramic resistor substrate, and finally, and after the ceramic resistor is aged, the firmness of the ceramic resistor fixed on the substrate is further ensured by baking.
The above embodiments are only for illustrating the invention and are not to be construed as limiting the invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention, therefore, all equivalent technical solutions also belong to the scope of the invention, and the scope of the invention is defined by the claims.
Claims (4)
1. A cold spraying process for a ceramic resistor metal film is characterized by comprising the following steps: it comprises the following steps:
(1) placing the ceramic resistor matrix in an oven for baking;
(2) taking out the ceramic resistor matrix which is placed in the oven until being cooled, and then placing the ceramic resistor matrix in a storage bin of full-automatic cold spraying equipment;
(3) arranging and feeding the ceramic resistor matrix into a clamp of full-automatic cold spraying equipment by a vibration feeding system;
(4) putting the metal powder to be sprayed into a spray paint bin of full-automatic cold spraying equipment;
(5) starting the full-automatic cold spraying equipment to a semi-automatic mode;
(6) manually controlling full-automatic cold spraying equipment, rotating the ceramic resistor matrix from left to right and then from right to left, and spraying the ceramic resistor matrix by the full-automatic cold spraying equipment to metalize the surface of the ceramic resistor matrix;
(7) taking out the ceramic resistor substrate, measuring the resistance value, adjusting the spraying times according to the resistance value at the measured position, adjusting the value for multiple times to reach the required resistance value, editing the operation program of the full-automatic cold spraying equipment according to the finished spraying process of the ceramic resistor substrate, starting the full-automatic mode of the full-automatic cold spraying equipment, and realizing continuous spraying processing;
(8) taking out the ceramic resistor matrix after the metal film is sprayed, putting the ceramic resistor matrix into an oven, and baking and aging at constant temperature;
(9) and taking out the ceramic resistor matrix after the constant-temperature baking time is aged, and measuring the resistance value to reach the required resistance value, thus finishing spraying.
2. The ceramic resistance metal film cold spraying process according to claim 1, wherein: in the step (1), the ceramic resistor matrix is placed in an oven at 580-600 ℃ and baked for 2 hours.
3. The ceramic resistance metal film cold spraying process according to claim 1, wherein: the fully-automatic cold spraying equipment takes out the sprayed ceramic resistor matrix every 10 minutes of operation, carries out sampling detection and once resistance measurement to prevent the resistance from deviating, and immediately adjusts when the deviation is detected.
4. The ceramic resistance metal film cold spraying process according to claim 1, wherein: in the step (8), the oven is set to 260 to 280 ℃ and the baking is carried out for 3.5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111285797.0A CN113880607A (en) | 2021-11-02 | 2021-11-02 | Ceramic resistor metal film cold spraying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111285797.0A CN113880607A (en) | 2021-11-02 | 2021-11-02 | Ceramic resistor metal film cold spraying process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113880607A true CN113880607A (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111285797.0A Pending CN113880607A (en) | 2021-11-02 | 2021-11-02 | Ceramic resistor metal film cold spraying process |
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| Country | Link |
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| CN (1) | CN113880607A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090202732A1 (en) * | 2005-06-28 | 2009-08-13 | Krueger Ursus | Method for Producing Ceramic Layers |
| US20160230288A1 (en) * | 2014-10-21 | 2016-08-11 | United Technologies Corporation | Cold spray manufacturing of maxmet composites |
| US20190003059A1 (en) * | 2017-07-03 | 2019-01-03 | Tatsuta Electric Wire & Cable Co., Ltd. | Metal-ceramic base material, metal-ceramic joint structure, method for producing metal-ceramic joint structure, and mixed powder material |
| JP2020007631A (en) * | 2018-07-12 | 2020-01-16 | 国立大学法人信州大学 | Film deposition method |
| CN112457057A (en) * | 2020-12-30 | 2021-03-09 | 湖南威斯康新材料科技有限公司 | Composite burning bearing plate for electronic ceramic and preparation method thereof |
-
2021
- 2021-11-02 CN CN202111285797.0A patent/CN113880607A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090202732A1 (en) * | 2005-06-28 | 2009-08-13 | Krueger Ursus | Method for Producing Ceramic Layers |
| US20160230288A1 (en) * | 2014-10-21 | 2016-08-11 | United Technologies Corporation | Cold spray manufacturing of maxmet composites |
| US20190003059A1 (en) * | 2017-07-03 | 2019-01-03 | Tatsuta Electric Wire & Cable Co., Ltd. | Metal-ceramic base material, metal-ceramic joint structure, method for producing metal-ceramic joint structure, and mixed powder material |
| JP2020007631A (en) * | 2018-07-12 | 2020-01-16 | 国立大学法人信州大学 | Film deposition method |
| CN112457057A (en) * | 2020-12-30 | 2021-03-09 | 湖南威斯康新材料科技有限公司 | Composite burning bearing plate for electronic ceramic and preparation method thereof |
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