Q:The United States of our brick anti-dumping duties?

At present of our brick anti-dumping rate is 73.10%

Q:What is the silica refractory products?

Refractory brick with silica content greater than 90%.

Q:How to judge the quality of brick, clay brick, high alumina brick furnace from the appearance?

Mainly from the impurities to determine how much, generally less impurity single color brick.

Q:The specific content is what gb/t2608-2012 brick

Quality assessment procedures, packaging, marking, transport, storage, and quality certificates. Suitable for siliceous refractory bricks.

Q:The difference between clay refractory bricks and refractory brick in the application.

The ability of alkali resistance is poor, the thermal shock stability is the worst, and it is scrapped at one time. The brick is generally used in the coke oven, glass kiln. Other industries basically do not use.

Q:Brick

An acid refractory consisting mainly of quartz and square quartz and a small amount of residual quartz and glass.More than 94% silica content. True density 2.35g/cm3. With acid resistance, slag erosion performance. Higher high temperature strength. The softening start temperature is 1620~1670 degrees. Long term use at high temperature without deformation. The thermal shock resistance is low (the heat exchange in water is 1~4 times). The natural silica is used as the raw material, and a proper amount of mineralizer is used to promote the transformation of quartz into quartz in the body. Slowly sintered at 1350~1430 DEG C in the reducing atmosphere. When heating up to 1450 degrees, the total volume of 1.5~2.2% expands, and the residual expansion can close the kerf and ensure the airtight and structural strength of the masonry.

Q:Physical solid waste disposal

Reduce crack production and improve yield. The amount of addition is related to the shape and weight of the brick. The bricks can be added to 20% weight less than 25kg; bricks above 25kg can be added to 30%; for the specific type of brick can be added 30%. into waste silica brick should pay attention to this problem

Q:How to improve the thermal conductivity of the coke silicabrick rate?

To improve the thermal conductivity of silica brick for coke oven rate method:Manufacture of high density and high thermal conductivity of silica brick, adding additives such as CuO, Cu2O, TiO2, Fe2O3, (FeO), can improve the thermal conductivity of silica brick.

Q:The introduction of silica brick

The silica mineral phase is mainly composed of tridymite and cristobalite, there is a small amount of quartz and glass

Q:Why in the production of the brick to detect the volume density

Product quality control of silica brick.