There are many problems that need to be considered in the process of die-casting aluminum parts. We should consider them. For example, we should determine whether the liquid metal can flow in a stable state after pouring into the system, and whether there will be separation phenomenon and eddy current phenomenon. It is necessary to consider whether there are sharp corners or dead areas in the die casting aluminum parts, whether there is any change in the cross-sectional area of the pouring system, etc., which need us to understand thoroughly.

The main purpose of die casting aluminum parts is to pour the metal solution into the specified model, after cooling and re solidification and cleaning and shaping, to achieve the desired shape and performance. This casting method is also one of the basic technologies in the current machinery manufacturing industry. The manufacturing objects that die casting aluminum parts manufacturing industry needs to face are the same as the flowing water, which changes very quickly It is also an important index to measure the comprehensive vision of mechanical machine tool industry.

A lot of people are discussing the problem of blowhole defects in die casting aluminum parts. When producing each batch of die-casting aluminum parts, they can not be completed smoothly. There are always several unsatisfactory ones, which are always affected by blowholes, resulting in losses and waste of production costs. Is there any appropriate solution to this problem. Xinxin copper aluminum once encountered this kind of problem, found the solution in the problem, and share with you.

Solution to air hole defects of die casting aluminum parts: the infiltrated products can not only save the cost of poor quality, but also meet the requirements of temperature resistance, vibration resistance and sealing performance, and further improve the compactness and timeliness of castings. Infiltration is a way to solve the problem of air hole in castings and to save cost.

Die casting aluminum parts have excellent mechanical and physical properties. It can have a variety of comprehensive properties such as strength, hardness and toughness. It can also have one or more special properties, such as, and low temperature, etc.

The selection principle of casting method for die casting aluminum parts: sand casting is preferred for die casting aluminum parts. The main reason is that the cost of sand casting is lower than other casting methods, the production process is simple and the production cycle is short. When the wet mold can not meet the requirements, then consider using clay sand surface dry sand mold, dry sand mold or other sand mold. The casting method of die casting aluminum parts should adapt to the production batch. Low pressure casting, die casting, centrifugal casting and other casting methods are only suitable for mass production because of the high cost of equipment and mold. Die casting aluminum parts can be cast individually or in batch.

The weight and size range of die casting aluminum parts are very wide. The light weight is only a few grams, the weight can reach 400 tons, the wall thickness is only 0.5 mm, the thickness can be more than 1 meter, and the length can be from several millimeters to more than ten meters, which can meet the requirements of different industrial departments. Generally, for the appearance quality of die-casting aluminum parts, the surface roughness of die-casting aluminum parts can be judged by comparison sample block, and the micro cracks on the surface can be inspected by coloring method and magnetic powder method. The internal quality of die casting aluminum parts can be checked and judged by audio frequency, ultrasonic, eddy current, X-ray and gamma ray.

The quality of die casting aluminum parts has a great influence on the performance of mechanical products. For example, the size of impeller, shell and inner cavity of hydraulic parts, the accuracy of profile and surface roughness of various pumps directly affect the working efficiency, energy consumption and cavitation development of pump and hydraulic system. The strength and cold shock resistance of die cast aluminum parts such as cylinder block, cylinder head, cylinder liner, piston ring and exhaust pipe of internal combustion engine directly affect the working life of engine.

Aluminum die casting is a kind of pressure casting parts, which uses the die casting machine with the casting mold installed. The heated liquid aluminum or aluminum alloy is poured into the feed port of the die casting machine. The aluminum parts or aluminum alloy parts with the shape and size limited by the mold are cast by the die casting machine. Such parts are usually called aluminum die castings. Aluminum die casting has different names in different places, such as aluminum die-casting parts, die-casting aluminum parts, die-casting aluminum, aluminum die-casting, aluminum alloy die-casting parts, etc.

Due to the good fluidity and plasticity of metal aluminum and aluminum alloy, and the casting process is cast in a pressure die casting machine, aluminum die casting can make a variety of more complex shapes, and also can make higher precision and finish, so as to greatly reduce the mechanical processing capacity of the casting and the casting allowance of metal aluminum or aluminum alloy, which not only saves power and metal Therefore, aluminum die casting is widely used in automobile manufacturing, internal combustion engine production, motorcycle manufacturing, motor manufacturing, oil pump manufacturing, transmission machinery manufacturing, precision instruments, landscaping, power construction, architectural decoration and other industries.