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Some requirements for raw materials of EPC equipment

Qingdao Shengmei Machinery Co.,Ltd | Updated: Apr 27, 2017

The use of lost foam casting equipment, will use some raw materials, which need what?
"One", gasification temperature and gas flow low; The gasification speed is fast, the residue is less, the monomer content is less than 0.5%, the molecular weight is higher than the ordinary packing bead;
"Two", my company's products have a very strong foaming capacity, the foaming agent in general 6%~8%, pre-hair multiples in 40~50 times; low moisture content, generally less than 1%;
"Three", our products of the same batch of production is the same size, concentration, low density, strength and surface rigidity, so that the appearance in the manufacturing, handling and sand filling process is not easy to damage, to ensure that the shape of the size and stability.
The cooling process of the vanishing mould is the use of cement mixer to pour out the hot sand mixing the box of just hit and stirring, supplemented by the roller outside water spray, air-cooled and other measures of cooling and dedusting, after the sand cooling, reverse mixer drum, after cooling sand in the roller blade conveying from the exit from the design of the screening device, screening and fine sieve, after the sand after another a short distance belt conveyor to bucket elevator, the sand is lifted to the sand-storage bucket needed for modelling.

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