How are refractories classified by qualitative and uncertain
Release time:
2018-10-23
According to the goods before delivery shape is divided into qualitative goods and uncertain goods. All named bricks are qualitative commodities. All kinds of castable, supplementary charge.
According to the goods before delivery shape is divided into qualitative goods and uncertain goods. All named bricks are qualitative commodities. All kinds of castable, supplementary charge, ramming material, refractory cement, etc. are uncertain commodities.
(1) Qualitative commodities can be divided into dense and insulated types.
Refractory bricks are subordinate to dense products, cement is a qualitative delivery of goods, but it is subordinate to indeterminate goods.
Qualitative products can be divided into massive (scale brick, special-shaped brick, etc.), special shape (crucible, sagger, fistula, etc.), fibrous (aluminum silicate, compound zirconium and boron carbide, etc.) according to the shape of the product.
(2) The indeterminate refractory is a new type of refractory without calcination, and its refractoriness is not less than 1580 ℃.
The indeterminate refractory material is a mixture composed of refractory aggregate and powder, agent or other admixture, which can be used directly or after moderate fluid matching. Such as refractory mud, irrigation materials and ramming materials.
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