Measuring flat plate sand casting is the casting method of producing cast iron platforms in sand molds. Steel, iron and most non-ferrous alloy castings can be obtained by sand casting. Because the molding materials used in the sand casting measuring plate are cheap and easy to obtain, the mold manufacturing is simple, and it can adapt to the single-piece production, batch production and mass production of the measuring platform. For a long time, it has been the choice of many casting enterprises.
The lost foam casting measuring plate is a measuring workbench model made of foam material. After coating with special paint, dry sand is buried in a negative pressure sand box. After the dry sand is vibrated and compacted, metal liquid is poured under negative pressure to obtain a cast iron plate consistent with the foam model without burrs. In the process of pouring foam model vaporization disappeared, so the image called: lost foam casting.
Compared with the traditional sand casting, lost foam casting has more advantages:
1. The lost foam casting measuring plate does not need parting and core, and the lost foam is especially suitable for box, shell and bobbin castings with complex geometry and difficult to complete by traditional casting.
2. The dry sand buried model for lost vanishing mold casting can be used repeatedly, with less industrial waste and significantly lower cost.
3. Lost foam casting has no flash burr, and the cleaning time can be reduced by more than 80%.
4. Lost foam casting can be used for multiple purposes, not only cast iron and ductile iron, but also steel castings at the same time, so the conversion is flexible and the scope of application is wide.
5, lost foam casting is not only suitable for large batch of casting parts, mechanized operation, but also suitable for small batch of products manual splicing model.
6. If the investment is in place, the lost foam casting can realize dust-free in the air, sand-free on the ground, low labor intensity and good working environment.
Lost foam casting cancels the modeling process, and after a short period of training, you can become a skilled worker.
8. Lost foam casting is suitable for group casting. Dry sand burying is easy to sand removal. In some castings of materials, residual heat treatment can be carried out according to the application.
9. Lost foam casting is not only suitable for small and medium-sized parts, but also suitable for large-scale castings, such as machine tool bed, large-diameter pipe fittings, large-scale cold-stamping die parts, large-scale mining equipment accessories, etc., because the model production cycle is short, the cost is low, and the production cycle is short, so it is particularly well received.
