(1) Brick selection.
Any defective bricks that exceed the standard requirements such as cracks, blisters, fire smashes, ribs, corners, distortions, uneven end faces, missing sub-ports, looseness, and excessive dimensional tolerances are not used.
(2) Brush bricks.
The inner working surface of the brick that meets the standard requirements must be cleaned with a steel brush to remove the ash.
Then, according to the variety, the date code is placed in the baking kiln.
The brick for molding must be baked in a baking kiln at 80-160 ° C for 48 hours, and the moisture content in the brick is ≤ 0.3%.
The funnel brick C2 should be tightened with iron hoop before use to prevent cracking when pouring steel.
Notice:The bricks in the text, unless otherwise specified, refer to refractory bricks.
Tags: refractory preparations, mold casting,
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