Refractory bricks are generally divided into two types:unshaped refractories and shaped refractories. Then the shaped refractory brick mold production determines the quality of refractory bricks, the following is the production of refractory brick mold production principles:
1) The template must be smooth, smooth and have a high hardness.
2) template installation should be taper, small side, big side, symmetrical, and to ensure that the size of qualified refractory bricks. The taper of the model installation is typically five thousandths.
3) The uneven face should be made alive.
4) Make the maximum area of the refractory bricks as a compression surface as much as possible.
5) within the model with the edge of the edge of the arc, the template corner with l-2 mm arc.
6) In case of the bottom of the convex part, try to make a wedge.
7) Scale. Generally based on different brick and mud, through the actual test to determine. At present, China's production of silicon brick, the scale rate is generally 3-4%; clay brick laying rate of 1-2.5%.
8) Thick skin: more than 150 mm refractory bricks, should consider both sides of the pressure.
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