A kind of all-aluminum water tank and its manufacturing method

Abstract

The invention relates to an all-aluminum water tank and a manufacturing method thereof, belonging to the technical field of vehicle components, and solves the problems of poor appearance consistency and poor sealing performance of the all-aluminum water tank in the prior art. The two ends of the main piece of the all-aluminum water tank are bent to form grooves, and the end of the water chamber is provided with steps embedded in the groove, and the side wall of the water chamber is provided with a water inlet and outlet for easy connection of the water inlet and outlet. There are flanges, the water inlet and outlet pipes are connected to the water inlet and outlet of the water chamber by welding, and the steps of the water chamber are embedded in the groove of the main piece by welding. The all-aluminum water tank improves the structure of the water tank, the main piece and the heat dissipation component to reduce the fit gap, and at the same time fills the gap through the brazing process, so that the all-aluminum water tank has good sealing performance and beautiful appearance. The advantages of good consistency and high pass rate of random inspection.

Description

technical field [0001] The invention belongs to the technical field of vehicle components, and relates to a vehicle cooling system, in particular to an all-aluminum water tank. Background technique [0002] The water tank is an indispensable and important part of the vehicle's water-cooled engine cooling system. Its function is to exchange the excess heat carried by the coolant in the water jacket of the engine through secondary heat exchange, and absorb the heat from high-temperature parts under the action of external forced airflow. A heat exchange device that dissipates into the air. With the continuous improvement of vehicle engine speed and power, the heat load is also increasing, and the requirements for cooling systems are also increasing. People pay more and more attention to the research of cooling systems including water tanks. New technologies and new materials are constantly Emerging, and the application of aluminum as a raw material and aluminum brazing technol...

AI Technical Summary

Problems solved by technology

The core of the water tank is composed of four parts: the main piece, the support plate, the heat pipe, and the heat dissipation belt. The aluminum materials are welded together by brazing technology, and then the water tank core and the plastic water chamber are connected by mechanical undercutting, thereby compressing the rubber seal. The gasket achieves the effect of sealing. Because the plastic water chamber is easy to crack and cannot be repaired and is not suitable for harsh working conditions, it is currently limited to small cars and transport vehicles with good road conditions; the structure of the all-aluminum water tank is much more complicated than that of the aluminum-plastic water tank. , in addition to having the same water tank core parts, the difference is that the aluminum stretched water chamber is used (better shock resistance than plastic water chambers, and easy to repair), except that the aluminum stretched water chamber and the water tank core need to be combined The body needs to be assembled and welded. On the aluminum stretching water chamber, there are also parts such as the water inlet, the water inlet and outlet pipes, and the water discharge switch seat that need to be welded. Because the welding methods currently used are aluminum argon arc welding, the sealing of the weld seam (test The passing rate of missing a delivery inspection is ) and the appearance consistency is poor, and the phenomenon of product rework is common, so the production efficiency is relatively low

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