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vacuum casting equipment working principle

Many people only know about vacuum casting equipment, but they don't know much about the working process and structure of vacuum casting equipment. The following is a brief introduction of vacuum casting equipment manufacturers:


Pouring process of vacuum pouring equipment: material pretreatment (insert the lining with adhesive or semi conducting rubber, empty and dry the filler, melt and empty the solid epoxy resin, empty the curing agent) → material mixing (first mix the filler and epoxy resin, then empty the resin) Time, then mix with curing agent) → pre curing (the casting material solidifies in the curing furnace, the degree of curing is more than 80%) → demoulding (keep the appropriate temperature to release the product and load the product quickly) )→ post curing (centralized curing after product demoulding to improve the curing degree and release the internal stress) → post treatment (cleaning the product gate, locking the mold seam and other defects) → check the packaging.

vacuum casting equipment working principle.jpg

Vacuum casting equipment casting advantages:


1. No air gap or few air gap, excellent electrical insulation performance;


2. The vacuum casting equipment has good casting fluidity, natural filling of mold cavity and good product uniformity;


3. Because of its good electrical performance, it can make the vacuum casting equipment miniaturized and optimize the structure of the main machine;


4. The vacuum casting equipment can be made into a complex shape and can be molded in one time, with good integrity of metal inserts and insulating materials;


5. The vacuum casting equipment has good weather resistance and can be used in indoor and outdoor fields;


Note: when the pouring temperature is too high or the material system reacts too fast, the available time of the pouring material will be shortened, the viscosity will increase, and the gas will not escape from the material quickly, and will move to the surface treatment slowly in the subsequent process. Therefore, after adding the curing agent, the temperature of the system can be properly reduced, the viscosity change of the material system can be controlled, the temperature change can be noticed, and the appropriate viscosity can be poured as soon as possible to ensure that the structure of the system with viscosity poured into the mold will not change significantly, which can reduce the generation of pores


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