There are several methods for making casting molds for differential pressure casting machines.

2019-06-10

Details of several types of design methods: 1. Wet sand design method. Applicable to most stainless steel materials, mass production design method, clay wet sand design is the most economical development design method. Casting factory weapons Equipment equipped with new technology applications should be gradually guaranteed that the wet sand control system can continuously obtain the best characteristics. This control equipment includes the separation of the metal material from the sieve residue, the water cooling of the recycled sand, and the recycling of the sand. Precise release of preservatives, etc. during mixing.

  In the production process, the differential pressure casting machine uses vacuum gas protection smelting technology combined with the lower casting method. Vacuum smelting prevents oxidation of the metal and makes the surface of the casting more shiny, and the castings produced are substantially free of pores. The lower casting method conforms to the metal gravity pull-down system to maximize the density and precision of the cast profile, so that the sand hole inside the finished product is controlled to the minimum limit, and the occurrence of shrinkage cavities or voids is avoided. This casting method not only greatly improves the production efficiency, but also makes the metal jewellery produced with high density, the surface is bright, and has no pores, so that the produced jewelry is more high-end atmosphere.

2, lost foam metal casting, Vulcan lost foam casting because of the improvement of machinery and equipment and raw materials, the selection of the proportion is constantly developing. Multi-directional filling work point, filling sand (event sand) timely filling and other new technologies Application, the quality of casting parts, the speed of design and the cost are reduced. The advantages of lost foam casting are: polyurethane foaming mold can be used without inclination or twist, and sometimes it can be used to make complicated shapes with twist. The design scheme has a degree of freedom calculation. In addition, the net weight of the casting can be alleviated, so that it does not require metal processing, and it can be cast without a core.