Combined pouring and purifying system for automobile aluminium alloy wheel with big diameter being more than 26 inches

Abstract

The invention discloses a combined pouring and purifying system for automobile aluminium alloy wheels with big diameter being more than 26 inches; the system is composed of a control cabinet, compression and decompression pipes, side dies, a top die, a bottom die, one central pouring system and two lateral pouring system; the central pouring system is composed of a circular arc filter screen, an iron pouring gate, a ceramic vacuum cup and a ceramic liquid-rising pipe; each lateral pouring system is composed of a lateral pouring feeding inlet, a cap-shaped filter screen, another iron pouring gate, another ceramic vacuum cup, a ring-shaped sealing gasket and another ceramic liquid-rising pipe; the feeding interface of each lateral pouring system is assembled at the die assembly place of two side dies and a Lip middle-upper part area; the volume of each lateral pouring feeding inlet is 100-200cm<3>; the width of the section thereof is 2.0-4.0mm, and the height thereof is 25.0-50.0mm; the invention has the characteristics that the mould filling time is short; the casting period is short; the casting defect is less; the interior quality of a casting is excellent; the casting process is convenient to control, and the like.

Description

technical field [0001] The invention relates to the field of casting of aluminum alloy wheels for automobiles, in particular to a combined casting and purification system for aluminum alloy wheels of automobiles with a diameter of more than 26 inches. Background technique [0002] In recent years, with the rapid development of the automobile industry, the development trend of automobile wheels to large diameter, wide rim, and deep Lip (the so-called Lip refers to the distance from the outer rim lip to the spoke of the aluminum wheel) has become increasingly obvious. On the one hand, the large diameter, wide rim, deep lip wheel and the matching tire have a larger contact area with the ground, which increases the adhesion between the car and the ground, and improves the safety and comfort of the car during high-speed driving; on the other hand The large-diameter, flattened tires cooperate with the corresponding wheels, making it more modern, domineering and fashionable. In vi...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, aiming at the long filling distance and long casting cycle of large-diameter automotive aluminum alloy wheels above 26 inches (26-30 inches), it is easy to produce casting defects such as cold shut, under-casting, looseness, and pores. , and the metallographic structure α dendrites are thick, the eutectic silicon particles are thick, and the structural strength of the wheel is low. Provide a new casting system that can significantly shorten the casting time, reduce casting defects, and improve the intrinsic quality of castings.

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