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Refractory castable in the construction of these problems you should pay attenti
2020-04-18 21:29:00 訪問：11558As for the pouring material in henan that we use in daily life, it is not enough for direct construction. We should pay special attention to some methods when we carry out the construction. Then what problems will you notice when we carry out the construction of the pouring material?
Refractory castable is made of clay and high aluminum material as aggregate and powder, and binder. Mainly used for lining of various industrial kilns and other thermal equipment and various kilns in chemical industry. The product has high fire resistance, good thermal shock stability, and has a certain resistance to sulfate corrosion. The temperature is in commonly 1350-1400 ℃, such as to improve use temperature, can be adjusted using alumina cement and grain size distribution. The product also has good properties of antimicrobial acid and alkalinity, high strength and no crack spalling after burning.
Pouring roof construction procedure: first assemble the roof formwork, then install the anchor parts. After the anchorage bricks are installed, the anchoring hooks must be strictly inspected one by one, and each hook and the hanging beam above must be installed, and the dimensions required by the design drawings must be guaranteed. Installing a template, to ensure that the design drawing for roof thickness, template should have sufficient strength and rigidity, fight in the construction deformation, and thoroughly clean the template on all sundry, template must level off, can not have bump and marginal cock phenomenon, especially with two side walls should be no gap, in case of leakage when pouring castable.
A clearance of 5mm shall be maintained between the bottom surface of the anchorage brick and the formwork, so that the suspension anchorage brick is under uniform stress. Make sure that the anchorage brick is perpendicular to the formwork during pouring, and let it dry naturally after pouring. Do not water it for curing and pay attention to anti-freezing. Do not knock hard when dismantling the mold, in order to avoid damage to the top of the furnace. After pouring on the top of the furnace, check whether the hanging parts are tight one by one. The anchoring hook shall not be buried in the insulation material of the top of the furnace.
Nowadays, refractory castable is widely used in all kinds of kilns. As for the specific application methods, henan castable manufacturer will provide detailed analysis and introduction:
Above all, when refractory pouring material is stored, want cogent attention moistureproof, before construction, want to check closely tie a nail to had been firm, have use heat-resisting catch a nail, its surface needs besmear on a layer of paint, perhaps undertake wrapping with plastic, use buffer heat to expand stress.
Secondly, the construction site needs to be clean, do not have sand, lime, clay and other sundries mixed in refractory castable, and cut and refractory castable contact all appliances and equipment do not mix with the above substances. Again, when the construction, the use of mixer mix, and shall not use manual spade manual mix, and different brands, models of refractory castable materials can not be mixed to use. When using, put the whole bag of materials into the blender. When mixing, add clean drinking water. The mixing time is 2-3 minutes. The mixed materials should be used up within half an hour. After the completion of construction, try to maintain 2-3 days. I hope that the use of these refractory castable can help you.
