Battery box aluminum alloy blowing expanding type water cooling plate production process

Abstract

The invention belongs to the technical field of new energy batteries and provides a battery box aluminum alloy blowing expanding type water cooling plate production process. A lower-layer aluminum plate is firstly subjected to pre-treatment of grinding, oil removing and the like and then is coated with an isolating agent; after the lower-layer aluminum plate is coated with the isolating agent according to an actual pipeline pattern, silk-screen printing of an upper liquid passing channel is performed; two layers of aluminum plates are fixed together through an edge and corner stamping technology; then, the aluminum plates are placed into a rolling roller to be subjected to hot rolling bonding; and then blowing expanding gas is introduced through a gas blowing hole in the upper-layer aluminum plate, and low-speed thermoplastic blowing expanding forming is performed on the aluminum plate. The battery box aluminum alloy blowing expanding type water cooling plate production process has thebeneficial effects that after rolling bonding of the two layers of aluminum plates for a battery pack of an electric automobile, then a water cooling board manufacturing process through superplasticprocess blowing expanding is performed, an aluminum water cooling board manufactured by depending on an superplasticity forming process can extend uniformly in the wall thickness direction, a very small thickness is achieved, breakage is not caused, and the manufactured water cooling board is high in precision, good in whole forming performance, high in automation degree of production, and capableof meeting the forming requirements of various complicated parts.

Description

technical field [0001] The invention belongs to the technical field of new energy batteries, and relates to a production process of an aluminum alloy inflatable water cooling plate for a battery box. Background technique [0002] With the development of the times, electric vehicles, as a new energy-saving and environmentally friendly vehicle, are on the road of rapid development. With the urgent need for lightweight vehicles, as one of the core components of electric vehicles - the power battery system, How to make the battery can safely, stably and efficiently provide power energy for the car has always been the focus of research by all parties. Working at a suitable temperature can not only exert higher efficiency, reduce energy loss, and prolong the service life of the battery. At the same time, the safety and stability of the battery itself are greatly improved when the battery is charged and discharged at an adapted temperature, reducing heat loss. possibility of loss ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is aimed at the status quo of the existing technology. Under the dual design requirements of large pipeline and light weight of the water cooling plate, this patent designs a production process of the battery box aluminum alloy inflatable water cooling plate, through The rolling compound first ensures the overall sealing of the upper and lower water-cooled plates, and raises the temperature of the material to the temperature required by superplasticity. Relying on superplastic forming technology, the blown water-cooled plate can break through the original forming depth bottleneck and achieve a deeper blown forming degree. , relying on the characteristics of superplastic deformation, the degree of inflation of the water-cooled plate is greatly improved without adding more materials, and its wall thickness is also greatly reduced. Finally, the large-pipe forming lightweight water-cooled plate we need is completed.

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