Tag: Calcium Silicate Board

Six Outstanding Advantages of Rongsheng Fiber Reinforced Calcium Silicate Board

KilnRefractory

Rongsheng non-asbestos fiber-reinforced calcium silicate board: based on siliceous and calcium materials (tobermorite generated under high temperature and high pressure), fiber-reinforced, must be autoclaved and cured. Fiber-reinforced calcium silicate board is a high-performance, green, and environmentally friendly building material. Its composition, performance and application are as follows:

Composition of Fiber-Reinforced Calcium Silicate Board

  1. Main materials: Siliceous materials (such as quartz powder, fly ash, diatomaceous earth, rich in SiO₂) and calcium materials (such as lime, calcium carbide mud, cement, rich in CaO) are the main cementing materials.
  2. Reinforcement materials: Loose short fibers such as inorganic mineral fibers or cellulose fibers are used as reinforcement materials.
  3. Manufacturing process: Calcium silicate board with mullite (C₅S₆H₅) crystal structure is generated through pulping, molding, high temperature and high pressure steaming and other processes.
Rongsheng Fiber Reinforced Calcium Silicate Board
Rongsheng Fiber Reinforced Calcium Silicate Board

Performance of Fiber-Reinforced Calcium Silicate Board

  1. Fireproof performance‌: non-combustible A-grade material, does not burn in case of open flame, does not produce toxic smoke, and has a fire resistance limit of more than 90 minutes‌.
  2. ‌Waterproof and moisture-proof‌: stable performance in high humidity environments, not easy to expand or deform, suitable for bathrooms, toilets and other places‌.
  3. ‌Strength and durability‌: high strength, 6mm thick board strength exceeds 9.5mm thick gypsum board, and is not easy to crack or deform‌.
  4. ‌Sound insulation and heat insulation‌: has good sound insulation and heat insulation performance, and the 10mm thick partition wall is better than an ordinary brick wall‌.
  5. ‌Environmental protection‌: non-toxic and harmless, in line with green building materials standards‌.

Application of Fiber-Reinforced Calcium Silicate Board

  1. Construction field: used for interior wall panels, exterior wall panels, ceiling panels, curtain wall lining panels, and composite wall panels.
  2. Industrial field: used as ship bulkhead panels, warehouse shed panels, tunnel siding panels, fireproof ventilation ducts, etc.

Six Outstanding Advantages of Rongsheng Fiber-Reinforced Calcium Silicate Board

  1. Fireproof and flame retardant: It reaches non-combustible A1 fireproof, flame retardant and heat-insulating, and does not produce any harmful gases.
  2. Waterproof and corrosion-resistant: Calcium silicate board has super high waterproof and moisture-proof performance, and is also suitable for high temperature and high humidity spaces.
  3. Super high strength: The strength of 6mm thick calcium silicate board is much greater than that of 9.5mm thick gypsum board, with good wear resistance, not easy to be damaged or cracked, and not easy to deform.
  4. Super long life: Inorganic material, stable performance, acid and alkali resistance, corrosion resistance, moisture resistance, moth resistance and termite resistance, and mission life is much longer than gypsum board.
  5. Energy saving and environmental protection: The thermal insulation effect is better than gypsum board, and it can significantly save energy when used in construction. Good sound insulation effect, no dust, asbestos, formaldehyde, etc., to achieve zero environmental pollution.
  6. Strong decorative effect: The material performance is stable, the temperature deformation is small, the decorative surface style is diverse, it can be customized, fashionable and beautiful.

The material properties of Rongsheng’s asbestos-free reinforced calcium silicate board are determined by chemical reactions (silicon calcium generates tobermorite at high temperatures). Its curing process must be autoclaved. Physical properties: lightweight, good insulation, and resistance to high-temperature deformation. Main uses: indoor fireproof partitions, suspended ceilings, etc. Advantages: Class A fireproof, water-resistant, and moisture-proof, environmentally friendly, and safe.

Calcium silicate board is more suitable for indoor fireproof and heat insulation scenarios. The key to choosing the right board is the application environment and performance requirements! Contact Rongsheng for free samples and quotes.

Thermal Insulation Materials for Aluminum Electrolytic Cells

KilnRefractory

Aluminum electrolytic cell is the main thermal equipment for aluminum electrolysis production. Electrolytic aluminum is the process of converting aluminum in alumina into metallic aluminum. There is an outstanding problem in the aluminum electrolytic plant. The bottom of the tank is cold. Improvement measures include blocking the windows in the lower part of the two-story structure, laying bricks within the tank shell frame, and coating the outside of the tank with an insulation layer.

Aluminum electrolytic cells are divided into bottom type and bottomless type according to the structure of the tank. According to the shape of the tank shell, it is divided into square and rectangular. According to the anode structure, it is divided into a prebaked anode and a continuous self-baked anode. According to the conductive mode, it is divided into side conductive and upper conductive.

Aluminum Smelting Furnace
Aluminum Smelting Furnace

The lining materials used in aluminum electrolytic cell-related equipment include calcium silicate boards, clay-insulating refractory bricks, clay refractory bricks, and dry anti-seepage materials. Cathode carbon block, carbon paste, water glass asbestos putty, silicon nitride silicon carbide thermal insulation coating, etc. The heat insulation layer refractory material can be placed between the tank bottom and the asbestos board to increase the heat insulation. The thermal insulation performance is more than five times stronger than calcium silicate boards of the same thickness.

High-Temperature Thermal Insulation Coating for Aluminum Electrolytic Cells

High-temperature thermal insulation coating is processed from specially synthesized inorganic silicate solution, aluminum silicate fiber, heat-reflective material, and selected hollow ceramic beads. Water-based, environmentally friendly, non-toxic, and harmless. The characteristics of high-temperature thermal insulation coating products for aluminum electrolytic cells are as follows:

  1. Thermos bottle thermal insulation mechanism.
  2. The hollow ceramic beads in the coating greatly reduce heat convection.
  3. Inorganic film-forming substances with relatively low thermal conductivity.
  4. Sound insulation and noise reduction, fire-retardant, wear-resistant and pressure-resistant, insulation-resistant and puncture-resistant, acid and alkali-resistant, lightweight, easy construction, and long service life.
RS 500 Thermal Insulating Coating
RS 500 Thermal Insulating Coating

The curing principle of high-temperature thermal insulation coating for aluminum electrolytic cells:

Silicate coatings are composed of a variety of silicates and a small amount of organic and inorganic binders. Its curing principle: a special silicate solution acts as a gelling agent. Aggregation process:

  1. The condensation of silanol and the condensation between silanol and the aluminum hydroxyl group of the silicate. Form a three-dimensional skeleton network.
  2. Silicates are polymerized according to layered and framework molecular-level silicone groups. The mixed metal oxide acts as a space filler between the three-dimensional skeleton of the main body.

Application of High-Temperature Thermal Insulation Coating

  1. Surface painting. High-temperature molds and outer surfaces of injection molding machines. On the inner surface of high-temperature flues and exhaust pipes. Paint the thermal insulation surface of hot water tanks and dye vats.
  2. Ceramic production, ceramic roller kiln, refractory rotary kiln. Cement plant applications, cement rotary kiln, preheater, decomposition furnace.
  3. Steel plant applications, ring furnaces, heating furnaces, and quenching furnaces. Molten steel tundish. Blast furnace workshop steel structure insulation, coke oven.
  4. The inner wall of the furnace shell of the smelting furnace in the metallurgical copper industry. The inner wall of the electrolytic aluminum furnace (aluminum industry).
  5. The outer surface of the power plant turbine shell/shaft seal; and the outer surface of the steam pipe are painted. Petrochemical heating furnace, vacuum heating furnace, cracking furnace.
  6. The top of the boiling furnace is insulated and sealed. Industrial heating furnace. Vacuum furnace insulation.
  7. Driving cab (Crane Crane). Explosion-proof vehicles, asphalt vehicles, engineering vehicles, and military armored vehicle chassis.
  8. Spinning box, high-temperature oven surface. New energy batteries and intermediate frequency furnaces.
Calcium Silicate Board for Aluminum Electrolytic Cell
Calcium Silicate Board for Aluminum Electrolytic Cell

Calcium Silicate Board for Aluminum Electrolytic Cell

Calcium silicate board is a new type of building material, also called “calcium silicate board”, “calcium magnesium silicate board”, “MgO board”, etc. It is a composite building material made of a variety of materials and has multiple functions such as fire protection, waterproofing, sound insulation, heat preservation, and corrosion resistance. Calcium silicate boards can be widely used in various fields such as building walls, roofs, partitions, and floors. It has high economic and social benefits.

The main components of calcium silicate board are inorganic mineral fibers as reinforcing materials, and siliceous, calcium, and other materials as the main materials. These materials are made by high-temperature pressing after certain stabilization treatments. Calcium silicate board has good flexural strength, tensile strength, and compressive strength. At the same time, it also has multiple functions such as fire resistance, corrosion resistance, sound insulation, and heat preservation.

Calcium silicate boards also have a wide range of applications and can be used on walls, roofs, partitions, and floors. Calcium silicate board has the characteristics of water resistance, corrosion resistance, etc. Therefore it is widely used in relatively humid places.

Compared with traditional building materials, the installation process of calcium silicate boards is simpler and faster. When installing calcium silicate boards, you only need to install them directly on the frame, and few other materials are used. Therefore, no construction waste and pollutants will be generated. As a thermal insulation material, calcium silicate boards are also widely used in aluminum electrolytic cells.