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Aluminum phosphate is mixed with refractory raw materials to prepare castable

There are many kinds of aluminum phosphate, the most commonly used is aluminum dihydrogen phosphate, also known as aluminum dihydrogen phosphate, collectively referred to as aluminum phosphate. It is often used together with refractory materials to produce refractory castable with better performance.

In addition, magnesium phosphate, sodium phosphate, zinc phosphate, boron phosphate, calcium phosphate and ammonium phosphate can also be used as binders, but they are rarely used in practical engineering. The aluminum phosphate binder is used in combination with any refractory raw material to produce refractory castable with better performance and obtain better use effect. However, when used in combination with magnesium materials, due to strong chemical reactions, inhibitors or retarders must be added miserably before construction.

Mix proportion of aluminum phosphate refractory castable.

编号	结合剂	矾土熟料粉料		矾土熟料骨料		促凝剂
编号	磷酸铝	等级	用量	等级	用量	CA-50 水泥
1	12	一级	30	一级	70	2
2	13	一级	30	二级	70	2
3	13	二级	30	三级	70	2
4	13	二级	30	一级	70	2

Refractory aggregate is less than 15mm of aggregate, and the particle size distribution meets the technical requirements. Refractory powder fineness is less than 0.09mm should be greater than 85%, the finer the better, can be appropriate to participate in super powder; The solubility of aluminum phosphate solution is 50%, if solid aluminum phosphate is used, about 10% water should be added and stirred. Aluminate cement as coagulant.