Casting, pouring method, application of casting method, casting method of automobile wheel, and automobile wheel

Abstract

The invention belongs to the technical field of casting, and relates to a casting, a pouring method, application of the casting method, a casting method of an automobile wheel and the automobile wheel. The pouring method is characterized in that the pouring temperature is 645-660 DEG C, the lift pressure is 0.018-0.022 MPa, the lift time is 4-8 seconds, the mold-filling pressure is 0.023-0.027 MPa, the mold-filling time is 10-20 seconds, the boost pressure is 0.08-0.12 MPa, and the pressurization time is 3-8 seconds; after pressurization is completed, the pressure is kept under 0.08-0.12 MPa for 70-130 seconds; and a die is opened after pressure relief cooling. According to the casting, the casting method, the application, the casting method of the automobile wheel and the automobile wheel, the mechanical performance of the casting is improved, the defect of many pinholes on the casting is overcome, the production efficiency is greatly improved, and the casting period is shortened.

Description

Technical field [0001] The invention belongs to the field of casting technology, and specifically relates to a casting and its pouring method and application, a casting method of an automobile wheel, and an automobile wheel. Background technique [0002] As an important part of a car, the quality of car wheels not only affects the beauty of the car, but more importantly, the safety of the car. Aluminum alloy wheels have been widely used in the field of automobile wheel manufacturing due to their light weight, high strength, high precision, good braking balance, and good thermal conductivity. [0003] At present, aluminum alloy wheels are mainly produced by low-pressure casting. However, the traditional low-pressure casting process currently used has a relatively high pouring temperature, generally around 690±10℃, and relatively slow liquid rise, filling, and pressurization, resulting in low production efficiency, long casting production cycle, and product The performance is low. ...

AI Technical Summary

Problems solved by technology

However, the pouring temperature of the traditional low-pressure casting process currently used is relatively high, generally around 690±10°C, and the liquid rise, mold filling, and pressurization are relatively slow, resulting in low production efficiency, long casting production cycle, and products. low performance

In addition, in order to reduce the energy consumption of the car and show the three-dimensional shape of the wheel, many wheels are now designed with a grooved structure, so that in the traditional casting, it is easy to have shrinkage holes exposed after the grooved part is processed. The performance is low and the pass rate is low

[0004] In general, the defects of the current low-pressure casting process are mainly reflected in: the mechanical properties of the casting are not high, there are many pinholes, the metallographic particles are large, the casting cycle is long, and porosity and shrinkage are prone to occur.

Images