Characteristics of special resin for stainless steel casting

Silica sol investment casting resin for stainless steel castings is environmentally friendly, non-toxic, odorless, easy to collapse, and has the characteristics of small gas generation. It is the ideal resin for modeling stainless steel plates at this stage.

The most important feature of silica sol precision casting with stainless steel and special resin is its heat resistance; even at very high ambient temperatures, it can maintain the unity of its structure and the reliability of its size. One expert summarized the main features below:

1. The free formaldehyde content of alkaline phenolic resin is low, only 0.2%; the curing agent used has no peculiar smell, is harmless to the body, has zero pollution to the natural environment, and is in good health.

2. Good drying and curing performance, adjustable mold-drawing time, suitable for three types of curing agent, basically able to dry and cure the core sand in different seasons

3. There are no harmful elements such as N, S, and P in the resin or curing agent. It can eliminate the defects of air outlet holes caused by S, P, and N infiltration on the surface of the workpiece caused by the above elements and also avoid the defects of gray cast iron in ductile castings caused by S and P.

4. Good scope of application to raw sand Alkaline phenolic resin is not only suitable for quartz sand, zircon sand, and South African chromite sand with low acidity but is also suitable for various sea sands, chromite sands, and forsterite sand with high acidity.

5. Alkaline phenolic resin self-setting sand has a low gas supply and good run-off performance.

6. It has unique continuous high-temperature characteristics. The sand mold core made of basic phenolic resin has thermosetting plastics and secondary hardening properties, which can prevent castings from defects such as thermal cracks and burrs.