Magnesium insulation castable

Magnesia thermal insulation castable is a heat-insulating refractory castable prepared with magnesia granules as aggregate and magnesia fine powder as powder. It has the characteristics of high refractoriness, low thermal conductivity, and resistance to alkaline metal and slag erosion. It can be widely used in high-temperature thermal equipment such as metallurgical industry, petrochemical industry, and ceramic furnace lining.

The magnesium insulation castable produced by Anshan justhigh refractory can be widely used in high-temperature thermal equipment such as metallurgical industry, petrochemical industry, ceramic furnace lining, etc. We adjust the performance of the products in the production environment according to different parts and temperature requirements of each thermal kiln, taking into account the economic benefits of the enterprise and subsequent maintenance needs.

Silicon carbide composite refractory castable

Silicon carbide composite refractory castables are made of corundum (electric fusion, sintering), plate alumina, alumina clinker and SiC as the main raw materials, and are formulated with binders such as activated alumina and silicon powder. It has the characteristics of high mechanical strength, high thermal conductivity, good thermal shock resistance and wear resistance, alkali corrosion resistance, good slag resistance and oxidation resistance, and strong resistance to partially molten metal.

It can be widely used in the metallurgical industry, including the middle and lower parts of blast furnace shafts, tap troughs, iron furnace linings, coke oven heads, tap openings, etc.; aluminum electrolytic tank linings, refining furnace linings, zinc distillation tank linings, etc.; It is also used in the lining of thermal equipment such as ceramics, chemicals, petroleum, aerospace, and automobiles.

Aluminum silicate fiber castable

The production process of aluminum silicate fiber castables is to crush aluminum silicate fiber cotton and directly mix it into various amorphous refractory materials. Different types of matrix materials and binding agents are selected according to different refractory degrees. The crushed aluminum silicate fibers are added to these bulk materials, stirred, and water is added (the amount of water added reaches 40% to 90%, which will cause large shrinkage). forming.

Aluminum silicate fiber castables are formulated with fiber granular materials, high-temperature refractory powder, high-temperature inorganic binders and additives. Because the fibers of traditional fiber castables cannot form granular aggregates, there is a lot of free water in the castables, and the material strength is low. The embryo body expands greatly during the condensation process after casting, and the dimensions are inaccurate. Fiber castables made of fiber granular materials have a low powder ratio, low water consumption, small expansion of the embryo body, and high product strength. The material construction is convenient and simple, and the furnace wall lining has strong integrity.

Product features: low thermal conductivity, low heat capacity, excellent chemical stability and thermal shock stability, high wind erosion resistance, high strength.

Uses: high temperature flue lining, ultra-high temperature kiln heat insulation layer, kiln door fire hole explosion-proof door, metal heat treatment kiln lining, ceramic kiln lining, petrochemical cracking furnace converter gasification furnace generator lining, Steel drum cover.

corundum castable

Corundum castable is a refractory castable prepared with corundum as aggregate and powder plus some binders. It has higher mechanical strength and abrasion resistance than high-aluminum refractory castables and mullite refractory castables, but its thermal shock resistance is slightly worse. It is mainly used as lining material for boilers, blast furnaces, heating furnaces, ceramic kilns and other kilns.

Corundum mullite castable

Corundum mullite castable has the characteristics of high high temperature strength, good thermal shock resistance and structural spalling resistance, good thermal shock resistance, high load softening temperature, small high temperature creep rate, good chemical corrosion resistance, etc., and is widely used in Large and medium-sized cement kiln kiln mouth, coal injection pipe, kiln head cover, cooling machine low wall, etc.

Al2O3-SiC-C self-flowing castable for iron ditch

Al2O3-SiC-C self-flowing castable for iron ditch is a refractory castable made of dense bauxite as the main raw material, pure calcium aluminate cement as the binding agent, and an appropriate amount of silicon carbide, silica powder, expansion agent, additives, etc. , with the characteristics of high strength, good erosion resistance, high thermal shock resistance, and wear resistance.

Al2O3-SiC-C self-flowing castables for tap troughs are used for the main trough, slag trough and repair of large and medium-sized blast furnaces. It has the advantages of erosion resistance, good spalling resistance, low melting loss rate, and high excess iron content. On-site pouring construction is convenient, without vibration, automatic filling and leveling, reducing labor intensity, and the overall pouring quality is stable and reliable. The periodic iron throughput can reach more than 100,000 tons. It can be constructed on site or made into prefabricated parts according to user needs.