What are the characteristics and methods of aluminum alloy die casting?

Characteristics and methods of aluminum alloy die casting

The filling process of aluminum alloy die casting is completed in a short time. It is easy to form gas and affect the quality of die casting. Therefore, oxygen pressure casting machine and aluminum alloy die casting machine have been developed one after another, and the medium pressure die casting machine has also been developed rapidly, and some die casting machines adopt inclined mode. Die casting process automation, die casting computer control and die casting flexible machining unit (FMC) are also developing gradually.

(1) Oxygen filled pressure casting is to replace air and other gases with liquid aluminum after filling the cavity and cavity with oxygen. It is characterized by eliminating or increasing blowholes, improving casting quality, complex structure, convenient operation and less investment.

(2) In vacuum pressure casting, the air in the die casting cavity is removed first, and then the liquid metal is pressed in. Its characteristics are as follows: eliminate or increase the air hole outside the die casting, improve the mechanical properties and appearance quality of the casting; greatly increase the back pressure of the cavity during die casting, and use the alloy with low specific pressure and poor casting performance.

The advantages of aluminum alloy die casting are as follows:

① Aluminum alloy die casting method can eliminate or increase the air holes on the outside of die castings, improve the mechanical properties and appearance quality of die castings, and improve the coating function.

② The aluminum alloy die casting method of the invention can greatly improve the back pressure of the mold cavity, can use the alloy with low specific pressure and poor casting performance, and can also use a small machine tool to cast large castings.

③ The filling conditions of aluminum alloy die castings are improved, and thin castings can be cast.

④ Compared with the common die casting method, the consumption efficiency of aluminum alloy die casting method is almost the same.

Foshan Nanhai Heyi metal products Co., Ltd. was established in 1995. Up to now, it covers an area of 40000 square meters and has more than 500 employees, including 5 senior engineers and 27 R & D personnel. Die casting, aluminum alloy production, integrated service. The company has introduced 17 sets of advanced 250-1650 ton cold chamber die-casting equipment from Japan and Taiwan, 2 sets of CNC32 sets of automatic spraying line, two sets of three-dimensional measuring instrument of the United States, and one set of German material composition analyzer. The company adopts advanced die-casting process flow, equipped with modern design and management software, and employs several senior engineers with many years of die-casting experience, which can be developed in high quality and batch Develop and process all kinds of precision aluminum and zinc alloy die castings. The main products are lighting, automobiles, locomotives, motors, hardware, locks, furniture and other accessories. Customers are mainly from Germany, Britain, Japan, Australia and other well-known overseas manufacturers.

Mr. Sun Gongyi, chairman of the board of the company, has been engaged in the hardware die casting industry for more than 20 years. He has always adhered to the customer-oriented and quality-oriented life. He also adheres to the concept of integrity management and adheres to the management objectives of precise quality, accurate delivery time and low cost, so as to ensure that products and services meet the requirements of customers. While continuously consolidating the domestic market, we try our best to open up the overseas market, and have made brilliant achievements, making the company's business gradually internationalized