Aluminum oil cooler

Abstract

The invention discloses an aluminum oil cooler which comprises a box body (1), a water inlet pipe (2) and a water outlet pipe (3). Protruding ribs (4) are arranged at one end of the water inlet pipe (2) and one end of the water outlet pipe (3), a welding flux gasket (5) is arranged between the protruding ribs (4) and the side wall of the box body (1), the welding flux gasket (5) is sequentially composed of an upper welding flux layer (5.1), an aluminum base material layer (5.2) and a lower welding flux layer (5.3), and the upper welding flux layer (5.1) and the lower welding flux layer (5.3) respectively comprise, by weight, 5 percent to 12 percent of Si, 0.1 percent to 1.0 percent of Fe, 0.005 percent to 0.025 percent of Mn, 1 percent to 2.5 percent of Mg, 0.1 percent to 0.3 percent of Bi, 0.05 percent to 0.25 percent of Sr, 0.001 percent to 0.01 percent of P, 0.002 percent to 0.03 percent of Ge and the remaining Al. The strength of the water inlet pipe and the water outlet pipe of the aluminum oil cooler is better, and performance is reliable.

Description

technical field [0001] The invention relates to the field of radiators, in particular to an aluminum oil cooler. Background technique [0002] Due to the improvement of automobile engine energy saving and emission requirements, more and more aluminum alloy materials that are cheaper, lighter and more efficient than copper and stainless steel are used for engine oil coolers of cars and commercial vehicles, and the installation structure is becoming more and more compact , the box-type aluminum oil cooler is the best choice, and the speed of popularization and application is very fast. Water inlet pipes and water outlet pipes are respectively installed on both sides of the aluminum oil cooler. The problem is that one end of the water inlet pipe and the water outlet pipe in the prior art is directly welded to the mounting hole reserved on the box body through a brazing process. The strength of the connection between the outlet pipe and the box is limited, and it is prone to c...

AI Technical Summary

Problems solved by technology

The problem is that one end of the water inlet pipe and the water outlet pipe in the prior art is directly welded to the mounting hole reserved on the box body through a brazing process. The strength of the connection between the outlet pipe and the box is limited, and cracks are prone to occur when vibration or thermal expansion and contraction occur, resulting in leakage and affecting the reliability of the product

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