Stainless steel pipe fittings silica sol is used in the investment casting process.

Because silica sol is used as a high-quality binder for investment casting, it is a colloidal solution with a light cyan or milky white appearance; the properties of silica sol are stable and the storage period is long; the surface quality of silica sol shell is good, and the high temperature strength is high. , thermal shock stability (anti-quick heat and heat); high temperature resistance to deformation. There are also requirements for wax film operation during the casting process.

1. When pressing the wax mold, the first inspection must be carried out first, and the operation can be carried out only after the qualification is confirmed. The pressing parameters cannot be easily changed during the pressing process.

2. When using a new mold, be sure to understand the mold assembly, disassembly sequence, and wax mold removal method.

3. When storing the wax pattern, pay attention to the direction of the surface to prevent deformation. If necessary, measures such as fixtures can be taken to avoid deformation of the wax pattern.

4. 2-3 pieces of shrinkage sample (such as ?100X6mm round cake sample) are used in each shift. After cooling, the shrinkage rate is measured and recorded.

5. Dispose of the residual wax in the wax bath before leaving work. The waste wax mold and waste wax should be kept clean, put into the waste wax box, and sent to the wax processing department in time.

6. When the waxing machine is working, it is not allowed to hold the mold by hand or put the hand under the countertop, and it is not allowed to operate the button with one hand to prevent personal safety accidents.

7. Do a good job in safety and fire prevention between wax molds.