A brief introduction to the casting mold

Casting mold refers to the structural shape of the parts in order to obtain the structural shape of the parts, using other easy-to-form materials to make the structural shape of the parts in advance, and then put the mold into the sand mold, so that the cavity parts with the same structure are molded in the sand mold. The fluid liquid is then poured into the cavity. After the liquid is cooled and solidified, parts with the same shape and structure as the mold can be formed. The casting mold is an important part of the casting process.

2021-06-17

Causes and Solutions of Aluminum Alloy Processing Deformation

In the aircraft structure, in order to reduce its own weight, a large number of thin-walled parts made of aluminum alloy processing materials are used, but the thermal expansion coefficient of aluminum alloy parts is relatively large, and the thin-walled aluminum alloy is easy to make. Aluminum alloy is deformed during processing, especially when free forgings are used, the processing workload is large, and the deformation problem is more serious. The following analyzes the causes and solutions of aluminum alloy processing deformation, hoping to be helpful to everyone.

2021-05-26

Heat treatment of aluminum alloy casting

Generally, the shape of aluminum alloy casting castings is more complex, the thickness is uneven, the structure is coarse, and the segregation is serious. Therefore, it can be used normally after proper heat treatment. Typical heat treatment processes include annealing, quench aging and stable tempering. The purpose of aluminum alloy casting heat treatment is to eliminate the internal stress of the casting. Eliminate casting segregation and change the shape of needle-like components in the alloy structure; improve the mechanical properties of aluminum alloys; stabilize the size, structure and performance of parts at high temperatures; improve the workability of castings. The following is a brief introduction to the process flow of aluminum alloy casting heat treatment.

2021-05-11

The action principle of aluminum alloy casting heat treatment

(1) Annealing: Heat the aluminum alloy cast product to a certain temperature, keep it for a certain time, and then cool it to room temperature at a certain cooling rate. Through atomic diffusion and migration, the structure is more uniform and stable, and the internal stress is eliminated, which can greatly improve the plasticity of the material, but the strength will be reduced.

2021-04-26

Aluminum casting plant: what are the surface treatment methods of aluminum casting

Aluminum casting is a common processing method in aluminum processing, and it is also a common processing method in aluminum processing. Since aluminum itself is a metal with poor stability and quality, aluminum casting plants usually need to treat the surface of aluminum die castings after aluminum casting. According to the actual use of different processing methods. Here for everyone to briefly introduce.

2021-04-13

Foundry: What are the conditions met by the College of Foundry Materials

The material used to make the investment is called mold material. In order to obtain high-quality molds, foundries must choose suitable mold materials. Due to the many steps in precision casting, the performance requirements for mold materials are also different. In terms of the following characteristics, the molding materials used in the foundry for precision casting should meet certain requirements.

2021-03-29

What are the advantages of low pressure casting molding gradually

Low pressure casting refers to placing the mold above the sealed crucible, and then introducing compressed air into the crucible to generate a low pressure (0.06~0.15MPa) on the surface of the molten metal, so that the molten metal rises from the crucible. The riser tube fills the mold and controls the solidification casting method. This casting method has a good feed and a compact structure. Large thin-walled complex castings without risers are easy to cast, and the metal recovery rate can reach 95%. No pollution, easy to realize automation. However, the equipment cost is high and the production efficiency is low. Usually used for casting non-ferrous alloys.

2021-03-12

Foundry: defects in the casting process

Various defects will appear in the casting process, so we need to know the causes of these defects and prevent the appearance of these defects. Today, foundry manufacturers have found out the reasons and methods to prevent these defects. Let's get to know.

2021-02-25

What are the main advantages of cast aluminum

Cast aluminum The aluminum suitable for the die-casting process is die-cast aluminum, usually die-cast aluminum alloy. It has a high-tech core pulling and cooling system. Typically, material is fed into the cavity through a central inlet for casting to form the part. How to understand the main advantages of cast aluminum?

2021-02-13

Cast aluminum manufacturers: the characteristics of aluminum castings and cleaning methods

Aluminum castings come in a wide range of weights and sizes. The lighter weight is only a few grams, the heavier is 400 tons, the thinner wall thickness is only 0.5mm, the thicker is more than 1 meter, and the length ranges from a few millimeters to more than ten meters. It can meet the requirements of different industries. Generally, for the appearance quality of aluminum castings, aluminum casting manufacturers can judge the surface roughness of aluminum castings by comparing samples, and can check the fine cracks on the surface by coloring and magnetic particle method. The internal quality of aluminum castings can be inspected and judged by audio, ultrasonic, eddy current, X-ray and gamma ray.

2021-02-04