The casting technology of fused cast AZS blocks is the key link in producing high-quality fused cast AZS blocks.

Glass manufacturer need to know the casting technology of fused cast AZS blocks is the key link in producing high-quality fused cast AZS blocks.

1.Preparation:

A. Selection of high-quality raw materials

B. Mature melting process

C. Automation control system

D. Sand mold making and cleaning

2. Casting method:

 PT(regular casting)

 QX( tilt casting)

 WS(void free casting）

 ZWS（end casting）

3. Casting process control

A. Casting temperature: The casting temperature needs to be controlled within an appropriate range to ensure that the melt can flow smoothly into the sand mold and form a good crystal structure.

B.Casting speed and casting time: Casting speed and casting time are also important factors affecting the quality of castings. Too fast casting speed may lead to uneven distribution of the melt, resulting in pores and shrinkage holes; too long casting time may increase the risk of oxidation and contamination of the melt.

C. Supplementary pouring operation: Supplementary pouring operation requires precise control of the timing and amount of supplementary pouring to ensure that the shrinkage holes are fully filled.

4.Subsequent processing

After casting, the casting needs to be annealed to eliminate internal stress, improve density and stability. Annealing is usually carried out in an insulated box or tunnel kiln, and the internal structure of the casting is brought to the best state by slow cooling.