Q:which is better as household fireproof material ?

If it is from the perspective of fire rating inorganic active insulation material for wall thermal, cement foam insulation board, glass beads of insulation movitrified?micro bead?thermal insulation?mortar, rock wool board, glass wool board, ect.. thermal insulation material are Class A fireproofing, polyphenyl board, extruded sheet, phenolic foam board, Polyurethane board, ect..belong to B1 level fireproofing, if it is used for external wall thermal insulation in decorative board, then rock wool board is more often used.

Q:What refractory material does cupola lining use?

Refractories for ehongtianlu, Yong, eajliao, najhuo cupola, refractory (refraetoriesfo:Cupola, furnace) masonry cupola and related parts. The utility model also discloses a heating furnace, which is a thermal equipment for melting pig iron in the casting industry and certain steel smelting plants. The working temperature of the guard is usually 1400 ~1 stone.. C.

Q:which kind of refractory is used in golden smelting furnace? How about his using temperature

generally the price of the quartz sand refractory material is higher and the temperature can meet the requirement of 2000 degree.

Q:How much is refractory spraying coatings?

Price: 1400.00 yuan refractory spraying coating brand / model: Jinshi fire resistant material| Brand: Jinshi fire resistant materials | Place of production: Henan refractory temperature: 1200 ~ 1400 (℃) | Material: Customization according to your needs Price: 2150.00 yuan refractory spraying coating brand / model: Tagore | thermal conductivity coefficient (at room temperature): 0.035W / (m · k) | refractory temperature: 1580～1770℃（℃）Price: 122.00 yuan refractory spraying coating brand / model: Jinshi | Tensile strength: | Compressive strength: tearing strength: Excellent | Temperature: 1000 ℃ | Form: Fibrous The above prices obtained from the Internet are for reference only, and please pay attention to the purchasing price.

Q:What are grades of refractory materials?

Refractories have lots of varieties which all have different purposes. It is necessary to classify refractories scientifically in order to scientifically study, choose and manage them. Classification methods of refractories include chemical properties classification, chemical composition of mineral classification, manufacturing technique classification, morphology of the material classification. 1 divided according to the level of refractoriness: ordinary refractory materials: 1580 ℃ - 1770 ℃, advanced refractories: 1770 ℃ - 2000 ℃ and super refractories: above 2000 ℃ 2, divided in accordance with shapes and sizes : Standard ones: 230mm × 113mm × 65mm, no more than four ruler, (ratio) Max: Min < 4: 1; Shaped ones: no more than two-entrant, (ratio) Max: Min < 6: 1 or having a acute angle of 50 - 70 °; The specific type :( ratio) Max: Min < 8: 1 or having no more than 4-entrants or having an acute angle of 30 - 50 °; and Special products: crucible, containers and tubes. 3, divided according to the method of manufacturing: burned products, non-burned products and unshaped refractories 4. divided according to the chemical properties: acidic refractory materials, neutral refractory materials and basic refractory materials.

Q:Why does refractory need to add coarse firstly and then add fine aggregate?

Binding agent can wrap particles and improve binding effect.

Q:What kind of refractory materials should be used for the intermediate frequency furnace to smelt manganese?

I’d like to make supplements to upstairs that aluminum silicate refractory materials should be needed considering heat insulation.

Q:How to divide the fire resistant level of EVB?

1. The thermal insulation material of level A combustion performance: Inorganic fiber spray coating, glass wool, foam glass, foamed ceramics, rock wool, foam cement and hole-closed perlite, etc. 2. combustion performance is level B1 insulation materials: Extruded polystyrene board (XPS) after special treatment / Special treatment of polyurethane (PU), phenolic aldehyde and gelatine powder polyphenyl granule 3, combustion performance is level B2 insulation material: Molded polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. I hope I can help you!

Q:What needs to be paid attention to in the construction of high- temperature refractory mortar?

As far as I'm concerned, in the construction of high-temperature refractory mortar, these matters should be noted: 1. During the use of high-temperature daub masonry stove, the minimum mortar joint should be 0.5mm and general mortar joint should be 3-5mm, which can solve the processing and fine grinding of refractory brick on the brick grinder. Besides, it is conducive to the health of workers, and can reduce the masonry effort, ensure the quality and speed up the construction progress. 2. When making urgent repair on the stove, if the joint is much too large, 2-3mm refractory pieces can be appropriately added into the high- temperature refractory mortar, and stirred to fill the joint so as to shorten the repair time and ensure normal production. 3. High- temperature refractory mortar can be painted inside various furnace body, and it should be guaranteed that the surface of the furnace body has no dust or debris before painting.

Q:What are unshaped fire-resisitance materials?

Refractory castable, refractory plastic material, usually classified according to construction and manufacture method, unfired bricks precast block, refractory pressed into material, refractory cast material, refractory coating, refractory ramming material there are many classification methods