The production principle of lost foam casting (large scale aluminum die casting)

Expendable pattern casting (large aluminum mold processing) according to the EPC process made of foam plastic model, smearing special coating, after drying placed special sand box, fill in the dry sand, three-dimensional vibration compaction, vacuum casting, gasification model disappeared, metal replacement model, copy and foam mold casting, condensation after release vacuum, removed from the loose sand castings, for the next cycle.
1, the production of foam plastic gasification mold (manual, mechanical);
2, foam plastic gasification, mold combination drying;
3, foam plastic gasification mold surface brush, spray paint after the fire again dry (certain dry);
4, the special sand box on three-dimensional vibration;
5, fill in low sand (dry sand), vibration, scraping flat;
6, the drying of the foam plastic gasification mold on the bottom sand, according to the process requirements are divided into sand, automatic vibration after a certain period of time scraping flat box;
7, with plastic film cover sand box mouth, put the gate cup, then negative pressure system. After compaction of molten steel casting mould, plastic foam gasification disappears, liquid metal in its place;
8, after the release of the condensation of the vacuum and turn the box, take out the casting, the next cycle.
Nanjing Quanshun large mold machining center, the lost foam casting (large aluminum mold processing), in the foam plastic model process this, according to the requirements of the design and processing of various model, high precision, more convenient, is you die casting industry preferred.

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Titanium Dioxide,Rutile Titanium Dioxide,Fine Chemicals

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