The technology of lost foam casting

The lost foam casting technology of the cast iron casting process is to use foamed plastic to make a solid mold with the same structure and size as the part. The dry sand of the cast iron casting process is dipped and coated with refractory bonding paint, then is molded, vibrated, compacted, and then poured into molten metal, and the pattern is evaporated and disappeared by heating, and a cast-iron method that conforms to the shape of the pattern is obtained. The lost foam casting of the cast iron casting process is a new technology with almost no margin and precise molding. So what is the lost foam casting of the cast iron casting process? Let's take a look together below.

Here is the content list:

Pressure Lost Foam Casting Technology

Lost foam shell casting technology

Lost Foam Suspension Casting Technology

Pressure Lost Foam Casting Technology

The pressure lost foam casting technology of the cast iron casting process is a new type of casting technology that combines lost foam casting technology and pressure solidification crystallization technology. The feature of this cast iron casting process is that it can significantly reduce the shrinkage cavity, shrinkage cavity, pores, and other casting defects in iron castings, increase the density of iron casting, and improve the mechanical properties of iron casting.

Lost Foam Casting Technology

The lost foam shell casting technology of the cast iron casting process is a new type of casting method that combines investment casting technology and lost foam casting. The method is to coat several layers of refractory material on the surface of a foamed plastic model made of a foamed mold with the same shape as the iron casting. After it is hardened and dried, the foam pattern is burned, vaporized, and disappeared to form a shell and baked. Then it is poured to obtain a new type of precision casting method of iron casting with higher dimensional accuracy. In the lost foam casting of cast iron casting process, it has the characteristics of large pattern size and high precision, and it has the advantages of crust precision and strength in investment casting. Compared with ordinary investment molds, foam plastic molds have low material cost, convenient pattern bonding and combination, are easy to vaporize and disappear, overcome the problem of investment deformation caused by easy softening of investment materials, and can produce more complex irons of various large-size alloys casting.

Lost Foam Suspension Casting Technology

Cast iron casting process lost foam casting technology is a new practical cast iron technology that combines the lost foam casting process and suspension casting. Cast iron casting process lost foam casting technology process is that after pouring molten metal into the mold, the foam shape is vaporized and mixed in the suspending agent of the riser model to physically and chemically react with the molten metal to improve the whole (or part) of iron casting Structure and performance.

The lost foam casting technology of the cast iron casting process is low in cost, high in precision, flexible in design, clean and environmentally friendly, and suitable for complex castings. It conforms to the general trend of casting technology development in the new century and has broad development prospects.

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