Refractory Silicon Nitride Bonded Silicon Carbide Si3N4 Bricks

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Specifications

Si3N4 bricks
1.Density:2.65g/cm3
2.Max temperature:1700C

Refractory Silicon nitride bonded silicon carbide Si3N4 bricks

Si3N4 bricks

material is a new type of advanced refractory materials. Compared with silicon carbide product, the product has characteristics of small thermal expansion, high thermal conductivity, not easy to have thermal stress, good thermal shock resistance, corrosion resistance, extreme cold or heat, oxidation, high temperature creep resistant ability and easily made into products with high dimensional accuracy requirements in line. Silicon nitride combined silicon carbide products have very high strength for normal atmospheric temperature, and it remains almost the same time with the strength and hardness at high temperature 1200-1400C. with the difference of using atmosphere, the maximum safe operating temperature could reach 1650-1750C.

Technical data of Si3N4 bricks

Project

Furnace lining brick

Special shaped brick

SiC%≥

70

70

Si3N4%≥

20

20

Density g/cm3

2.65

2.60

Apparent porosity %

17

18

Compression strength Mpa≥

160

150

Modulus rapture at room temperature Mpa≥

45

40

Modulus rapture at elevated temperature 1400C Mpa≥

50

45

FAQ

1. Sample of Si3N4 bricks

We can sent customer samples to test our product.

2. Delivery of Si3N4 bricks

FOB zhengzhou/qingdao/ningbo/dalian/tianjin/shenzhen/shanghai/alataw pass

We also can offer you C&F,CIF,Door to Door according to customers’ requirement

3. Packing of Si3N4 bricks

Usually,inner is film&foam,outter is wooden box.We also can do the packing

according to customers’ requirement

4. Damage and loss of Si3N4 bricks

When we pay the shipping cost,if cargo damage and loss,we will bear the loss of SiC bricks.

Application of Si3N4 bricks

Silicon nitride bonded silicon carbide refractory bricks used be in ceramic kiln shelf,panels,pillars,seperated flame plate,Waste Incineration Furnace Lining,aluminum tank.

All products are produced to the highest quality standards which means the consistent supply of ceramic components to enable your process to run more efficiently.
All components are supplied with a replacement guarantee. This guarantee provides for the replacement of the component if the service life is reduced because of a fault in the manufacturing process.

Typically we offer a guarantee of 40 days life in service for a riser tube in a low pressure aluminum die casting application, depending on the design.


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Q:What are the main materials in concrete fireproofing material?
it can be roughly divided into: fire-resistant coating for steel structure, finishing fire retardant paint, tunnel fire coatings, concrete fire retardant coating, cable refractory coating. fire-resistant coating for steel structure is divided into: Indoor ultra-thin fireproof coatings for steel structure, indoor thin steel structure fireproofing coating, indoor thick steel structure fireproofing coating, outdoor ultra-thin fireproof coatings for steel structure, Outdoor thin steel structure fireproofing coating, outdoor thick steel fireproofing coating. I hope it can help you. Hope to adopt my opinion Thank you! )
Q:How to make fire resistant materials for building stoves
Legend of the old version has been upgraded, or can not enter the server, is not legend stopped?
Q:I wanna ask about the thermal insulation material fire resistant level?
The inorganic have glass wool \ foam glass Bian \ the best of organic is phenolic foam \ phenolic foam composite cement layer is level A.
Q:what's the varieties of thermal insulation material with A level fire rating?
the main A level fireproof material is rock wool now (note:it is rock wool not mineral wool). A1 level fireproofing, now the largest producer is Taishi rock wool Co., Ltd.; hope my answer can help you, thank you.
Q:Using what kind of melting aluminium furnace refractories is more appropriate?
If it's the ordinary, you can use high aluminum refractory brick with general clay, GB/T 3994-2005 clay heat insulation refractory brick. If you need these with good material, there is high alumina thermal insulation refractory brick, GB/T 3995-2006 high aluminum heat insulation refractory brick, models have A13 and material is the alumina, A13 50 u, high insulating brick B5.Intermediate insulating brick B2, etc. Dolomite brick: good hang kiln performance, good erosion resistance, but brick is usually without f - CaO, hydration, and difficult to transport and storage, less used in the production. Magnesia-chrome bricks: good hang kiln, used in calcining zone. The disadvantage is that its thermal shock resistance is poor and plus hexavalent Cr is toxic, the production and use of magnesite chrome bricks in international countries gradually reduce. Now unit using the brick find replacements as soon as possible.
Q:What refractories are used in various parts of the blast furnace.
Blast furnace from top to bottom has the throat, hearth staves, waist, bosh, hearth and furnace bottom. the specific structure is as follows: The throat is the first to be affected by the impact and abrasion, generally use high-density alumina bricks. the upper and central portion of temperature furnace is only 400 ~ 800 ℃, the area with high alumina bricks and silicate bricks. The lower part of furnace is subject to erosion and dust erosion alkali metal vapor due to high temperatures, it is required in such case to use high quality clay brick,high alumina brick,carborundum brick,corundum brick that is slag resistance and alkali resistance, temperature resustant and wearproof. Furnace bosh temperature reached 1400 ~ 1600 ℃, serverly eroded by slag,vapor, flush. so we use carborundum brick and reaction-bonded silicon carbide brick. Bosh temperature reaching1600 ~ 1650 ℃, using alumina brick, corundum brick or silicon carbide brick. the temperature of Hearth near the upper portion of the outlet zone at 1700 ~ 2000 ℃, use of silicate bricks and corundum castable graphite filler, silicon carbide bricks. In 1450 Silly twitch bottom temperature sealing die of hunger slander bet phoenix astringent preserved Grade ~ 1500 ℃, use of graphite bricks and microporous carbon bricks, now use more corundum brick, corundum mullite brick and synthetic mullite brick. x26lt;P class x3d "share-btn"x26gt;
Q:What refractories are accessible with ease in daily life? This material is suitable as a disposable mold and crucible for melting brass.
The refractory that you want is high temperature furnace which you can buy from the market.
Q:Which kind of refractory does insulation board belong to ?
Q:Could you tell me the fire-resisting time of class B fire proof door?
The fire-resisting time of class B fire proof door is 1h and thickness of door can't be lower than 45mm.
Q:Where do China and foreign countries do more refractory materials?
Zhengzhou real gold refractory materials Co., Ltd. specializing in the production of non-ferrous industries, glass kilns, cement kilns with a variety of refractory materials, factory direct sales, reasonable prices.

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