What is the difference between refractory castable and refractory ramming?

The difference between the two can be said to be very big, first of all, the method of construction, the refractory castable is poured construction; The refractory ramming material is rammed for construction, and the construction is more troublesome; No castable is convenient for construction. Now less ramming material is used, and refractory castable is generally used.

Ingredient differences: Refractory castables are mixtures composed of refractory aggregates, binders and admixtures.

The composition of refractory plastics is similar to that of refractory castables, which are composed of refractory aggregates and powders, binders and plasticizers, and special admixtures can be added according to different requirements, such as preservation agents, anti-shrinkage agents, antifreeze agents, etc.

Difference in use method: most of the refractory castable is mixed with water to form a mud that can be constructed by pouring method, and can be demolded after a period of curing after pouring molding, and then can be put into baking after an appropriate period of natural curing.

Refractory plastics need to be combined with binders and constructed by tamping method. The commonly used binders are classified as clay bonded plastic, phosphoric acid bonded plastic, aluminum sulfate bonded plastic, etc.

In addition, the refractory plastic has good plasticity, good medium and high temperature bonding strength, wear resistance and thermal shock resistance. It is a recommended non-shaped refractory.

Yangquan Zhengyuan Refractories **** is located in Yangquan, Shanxi, the hometown of refractories in the country, which is rich in bauxite and is the production base of high-alumina refractories in China. Founded in 1995, the company has been focusing on the production of refractory materials for nearly 30 years, enjoys a high reputation in the industry, and is a model enterprise of energy conservation and environmental protection in Yangquan City. The company integrates R&D, production and sales, and transforms the unique local resource advantages into industrial and product advantages.

The company mainly produces three types of refractories: shaped refractory products, amorphous refractories and aluminum raw materials.

Shaped refractory products include: high-alumina bricks, clay bricks and a full range of heat-insulating refractory products such as high-alumina, clay, diatomaceous earth, perlite, etc.

Amorphous refractories include: castables of various specifications and grades, ramming materials, hot patches, plastic spray coatings, refractory muds, etc.

Refractory raw materials include: bauxite (raw meal, clinker, aggregate, fine powder), homogenized material, etc. The company's products sell well all over the country and are exported to Japan, South Korea, Europe and the United States.

We insist on integrity-based, with high-quality products, perfect service, and make friends all over the world.

Ramming material refers to the amorphous refractory material that is constructed by the ramming method and hardened under the action of heating higher than room temperature. It is made by mixing refractory aggregates, powders, binders, admixtures with water or other liquids with a certain gradation. According to the material, it is composed of high alumina, clay, magnesia, dolomite, zirconia and carbonized silicon-carbonaceous refractory ramming material.

The ramming material is made of silicon carbide, graphite, and electrocalcined anthracite as raw materials, mixed with a variety of ultra-fine powder additives, and fused cement or composite resin as the binding agent to prepare the bulk material formed by land. It is used to fill the gap between the furnace cooling equipment and the masonry or the filler of the masonry screed. The ramming material has good chemical stability, erosion resistance, wear resistance, peeling resistance, thermal shock resistance, and is widely used in metallurgy, building materials, non-ferrous metal smelting, chemical industry, machinery and other manufacturing industries!

Acidic, neutral and alkaline ramming materials are widely used in coreless intermediate frequency furnaces and cored induction furnaces, as intermediate frequency furnace ramming materials to melt ash cast iron, ductile iron, calcinable cast iron, vermicular graphite cast iron and cast iron alloys, melt carbon steel, alloy steel, high manganese steel, tool steel, heat-resistant steel, stainless steel, melted aluminum and its alloys, melt copper and bronze copper alloys, etc.

Summary. There are many types of 8-10% refractory castables, and the amount of water required for castables of different materials is different, and the mass ratio of castable and water is generally controlled at 8-10%. Excessive water addition will affect the bonding strength and reduce the service life of the cast lining.

There are many types of 8-10% refractory castables, and the amount of water required for castables of different materials is different, and the mass ratio of castable and water is generally controlled at 8-10%. Excessive water addition will affect the bonding strength and reduce the service life of the cast lining.

There are many types of 8-10% refractory castables, and the amount of water required for castables of different materials is different, and the mass ratio of castable and water is generally controlled at 8-10%. Excessive water addition will affect the bonding strength and reduce the service life of the cast lining.

Refractory castables.

A granular and powdery material made of refractory materials with a certain amount of binder. It has high fluidity and is suitable for amorphous refractories formed by pouring.

Compared with other amorphous refractories, the binder and moisture content are higher, so the fluidity is better. They have a wide range of applications and can be selected according to the conditions of use. It can be directly poured into a lining for use, and can be used to make prefabricated blocks by pouring or compaction methods.

Cement cement, powdered hydraulic inorganic cementitious material. After adding water and stirring into a slurry, it can be hardened in air or better hardened in water, and can firmly cement sand, stone and other materials together. Cement is an important building material, mortar or concrete made of cement, strong and durable, widely used in civil construction, water conservancy, national defense and other projects.

In the cement plant, the use of castable is very extensive, preheater, kiln tail, tertiary air duct, grate cooler, etc., all to use, according to different working conditions, the type of model used is also different, there are high alumina alkali resistance, anti-crusting, wear-resistant, and coal injection pipe special, many kinds.

The material is different, the castable is made of aggregate and cement or other curing agent linkers, while the mud is refractory mud, mainly refractory mud.

1. When pouring ladles, the quality of the ladle and the number of load-bearing times should be tested many times, whether it is the crane high-temperature castable ladle or the portable ladle, it should be checked once every 2 months, and the important parts should be checked for cracks, deformation, expansion and so on.

2. Mix the castable with a mixer, pour the castable into the stirring first, and add the coagulation dose of 5-3%. Depending on the hardening time to adjust, the temperature at 25 o'clock in autumn can be increased by 5%, if the temperature of the construction site is at 30, 3% can be added, and the time must be grasped to reduce the loss during construction, and the pouring must be poured to the specified part until completion.

3. The actual operation of the castable is mainly stirred by the mixer, and manual mixing is prohibited. However, the ground must be clean, the castable should be added with a coagulant, and the amount of coagulant added is 3%, which on-site construction can add 5% and then add 8% PA80 glue to mix quickly to ensure that it is used up within 10 minutes.

4. Before pouring, first do a good job of coating the anchor solid with a layer of asphalt and paint, when the pouring thickness is within 250mm, it is advisable to pour to the specified thickness at one time, and vibrate until it is dense and completely compact.

5. The mold must be cleaned before the mold, and the mold should be coated with a layer of oil to carry out the mold.

6. In winter construction, salt or other substances are added as antifreeze agents, which reduces the high-temperature performance of the material, or reasonable antifreeze measures are not taken during winter construction.

The use of castable is shared today, and the compulsory mixer is recommended for castable mixing, requiring all mixing tools and mixers to be clean and free of debris.