Composite aluminum material for PTC and manufacturing method thereof

A manufacturing method and a composite aluminum technology, which are applied in the field of aluminum foil rolling manufacturing, can solve the problems of reducing the heat dissipation performance of PTC heaters, reducing the heating efficiency of PTC heaters, shortening the service life of air conditioners, etc., so as to avoid the formation of intermetallic brittle compounds, easily The effect of mastering and improving assembly efficiency
CN112048643AInactive Publication Date: 2020-12-08JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
Publication Date
2020-12-08
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention belongs to the technical field of aluminum foil calendering manufacturing and discloses a composite aluminum material for PTC and a manufacturing method thereof. The composite aluminum material for PTC comprises a core layer and a brazing layer, the core layer and the brazing layer form a composite structure through rolling, the brazing layer is made of AA4004 aluminum alloy, and thecore layer is made of AA3003 aluminum alloy. The core layer is prepared through cast rolling and cold rolling, the brazing layer alloy is prepared through casting, hot rolling and cold rolling, and the composite aluminum material for the PTC is obtained after the core layer and the brazing layer are compounded through cold rolling. The aluminum foil prepared through the manufacturing method has high postweld strength and good corrosion resistance after high-temperature welding, the performance requirement of PTC for composite aluminum materials can be met, the manufacturing method is controllable in process, good in repeatability and easy to master, the industry development requirement can be met, and formation of intermetallic brittle compounds can be avoided.
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Description

technical field

[0001] The invention relates to a composite aluminum material for PTC and a manufacturing method thereof, belonging to the technical field of aluminum foil calendering manufacturing. Background technique

[0002] At present, most domestic manufacturers of PTC heaters produce PTC heaters by adding ordinary aluminum alloy welding pieces and aluminum alloy fins to produce PTC heaters by manual assembly and heating in a vacuum furnace. Due to the addition of aluminum alloy welding pieces, Ordinary aluminum materials with perforations cannot be used, which reduces the heat dissipation performance of the PTC heater, making the heating efficiency of the PTC heater gradually decrease with the extension of time, and the power attenuation rate of the PTC heater is generally greater than 10%, which shortens the The service life of the air conditioner increases the consumption of electric energy and wastes energy. Contents of the invention

[0003] The purpose of the ...

Claims

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