Aluminum alloy air cylinder and preparation method thereof

Abstract

The invention relates to an aluminum alloy air storage cylinder and a preparation method, and belongs to the technical field of automobile air storage cylinders. The aluminum alloy air storage cylinder comprises an air storage cylinder body and an air cylinder end cover; the air storage cylinder body is formed by rolling and welding a metal plate, and end rolling and reducing sections are formed at the ports of the two ends of the air storage cylinder body through rolling and reducing; the air cylinder end cover comprises an air cylinder end cover straight section connected with the end rolling diameter-reducing section, the diameter of the air cylinder end cover straight section is the same as that of the end rolling diameter-reducing section, and the end face of the air cylinder end cover straight section is attached to the end face of the end rolling diameter-reducing section and connected with the end face of the end rolling diameter-reducing section through a circumferential welding seam. According to the aluminum alloy air cylinder, the ports in the two ends of the air cylinder body can be in butt joint with the end faces of the air cylinder end covers conveniently, the butt joint precision and the welding quality of the air cylinder body and the air cylinder end cover are improved, and the sealing performance and the product quality of the aluminum alloy air cylinder are guaranteed. The air cylinder end cover is arranged in the air cylinder body without end cover necking fit, an overlapping section where the air cylinder end cover and the air cylinder body are connected in a sleeved mode is omitted, and light weight of a finished product is achieved.

Description

technical field [0001] The present application relates to the technical field of automobile gas storage tanks, in particular to an aluminum alloy gas storage tank and a preparation method thereof. Background technique [0002] The air storage tank is an important energy storage part of the air brake model to ensure the good operation of the brake performance of the car. The gas storage tank is mainly composed of the gas storage tank body and the head (the end caps at both ends and the partition of the multi-cavity gas storage tank). The cylinder body is mainly rolled and welded by carbon steel or aluminum alloy sheet material of specific specifications cut according to the size of the gas storage cylinder. The roundness of the rolled and welded cylinder is insufficient, and most of the weld surface has excess height. The outer diameter of the baffle is matched with the inner diameter of the cylinder, and the baffle at the joint with the cylinder is reserved with grooves for...

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Problems solved by technology

[0005] The embodiment of the present application provides an aluminum alloy gas storage cylinder and its preparation method, in order to solve the poor roundness of the cylinder body in the related art, which requires the end cap to be shrunk and pressed into the cylinder body to ensure the assembly quality, and the overlapping parts cannot be loaded and are invalid Weight, leading to waste of material and weight gain issues

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