low pressure castingbeThe foundry is used in the processing of many aluminum parts, and it is also very common in our lives. However, if the surface treatment is not good during the processing, it will also have a greater impact on the quality of the product. Therefore, there are many aspects when the foundry chooses this low-pressure castingNeedTo get everyone's attention. What should we pay attention to? Let's see.

Do you know the surface treatment technology of low pressure castings?

FoundrySurface processing usedThe process can usually be divided into: spraying, powder spraying and electrophoresis. After the surface treatment of the workpiece, according to the appearance and corrosion resistance requirements of different workpieces, select the appropriate spraying process and equipment, and pay attention to the control of leveling, drying, cooling and other processes, otherwise it will produce product qualityofnegative impact. In general, the foundryofThe spraying process can achieve better appearance quality. Spray coatings have good gloss, color and weather resistance, and are usually used in applications with high requirements on appearance, such as automobile outer coatings and motorcycle fuel tanks.

As we all know, the processing system of low-pressure casting will affect the entire operation process, so what factors will affect low-pressure casting?

The reasonable low-pressure mold design of the foundry can dredge the feed channel in the forging process, produce a good and rapid continuous coagulation effect, realize the coagulation from the far end to the riser, prevent the occurrence of forging defects, and increase the output power. Preheating temperature of general mold to reach400-450 ℃ is appropriate. FoundryofIf the temperature of the low-pressure casting mold is too low or too high, the reasonable temperature field of the mold will be destroyed, and the casting is difficult to form or the pass rate is low. And the coating on the surface of the mold has the ability to resist thermal shock. The type, size and thickness of the spray coating on the surface of the mold will directly affect the function of the casting.

In the production of low-pressure castings, the foundryShouldQuality control and inspection of castings. FoundryNeedDevelop rules and technical conditions to control and check the compliance of each specific product from raw materials, auxiliary materials to process. Each process is strictly controlled and inspected in accordance with the process regulations and technical conditions.