Silika murstein

Silika murstein are a refractory material with silica as its main ingredient. Usually, the silicon dioxide content is not less than 93%. It can be fixed or refractory materials.
PER ildfast company, as a professional refractory bricks (Silica refractory bricks) manufacturer in China, can offer you a lower price than the market. Contact us now to get the latest price list of Silica refractory bricks.

Common Applications Of Silica Bricks

Silica fire bricks are mainly used for carbonization chambers of coke furnaces and walls of the combustion room, heat storage room of steelmaking flat furnaces and sediment room, average hot furnaces, glass smelteovner, and ceramic furnaces such as furnaces And other load-bearing parts. It is also used for high-temperature load-bearing parts and acid flat furnace tops of the hot air furnace.

Light Insulation Silica Brick

Light insulation silica bricks are mainly used for thermal insulation materials on acidic kilns such as melting furnaces and coke ovens in the glass industry.
Silica bricks for hot air furnaces have the characteristics of low hotline expansion, less residual quartz content, small density, and high load softening points.
And the appearance is regular and the size is accurate.
It is mainly used for high-temperature areas such as the blast furnace hot air furnace, the upper furnace body, and the upper grid.

Silica Brick for Glass Kiln

The silica bricks of the glass melting kiln are mainly used for: the melting department and working department kiln top, chest walls and front and back walls, heat storage room tops, and upper partition walls of the heat storage room.
The SiO2 content of basic ingredients and performance of silica bricks is 96 ~ 98%.
It is an acid-refractory material. Its density is 2.35 to 2.38g/cm3.
It has a high-temperature structural strength, such as high softening temperature (1640 ~ 1700 °C) and low creep rate.
And after absorbing a few alkaline components, except for the slightly light erosion, it does not reduce the strength of the kiln top structure. The main disadvantage of silica bricks is low resistance to heat seismic.

Silica Brick for Hot Air Furnace

Silica bricks for hot air furnaces have the characteristics of low hotline expansion, less residual quartz content, small density, and high load softening points.
And the appearance is regular and the size is accurate.
It is mainly used for high-temperature areas such as the blast furnace hot air furnace, the upper furnace body, and the upper grid.

Special Refractory Brick

High -density high -conducting silica refractory brick
Increase the thermal guidance rate of silica bricks, shorten the focus time, and increase productivity to have a certain economic effect.
Derfor, manufacturing high-density and high-conductive silica bricks has attracted people’s attention.
The composition of the alumina silicate fire brick is crystal (Sepa Ying, Fang quartz, and quartz), glassfase, and stomach.
Blant dem, the glass phase and stomach are the main factors in reducing the thermal heating rate of silicon firebricks. It is the pores that affect the pores, followed by the glass phase.
Akkurat nå, the way to increase the thermal guidance of silica refractory bricks is mainly obtained by increasing the content of squamous quartz and reducing the pores.

Physical and Chemical Index Of Silica Bricks

Item	Silica brick for coke oven		Silica brick for glass kiln
	Furnace bed	others	BG-96A	BG-96B	BG-95A	BG-95B
SiO2% ≥	94		96	96	95	95
Fe2O3 %≥	/		0.8	1	1.2	1.2
0.2MPa RUL°C ≥	1650		1680	1670	1660	1650
FUSION INDES:	/			/		/
one BRICK<20kg			0.5		0.7
one BRICK ≥20kg			0.6
True density g/cm3 ≤	2.34	2.35	2.34
PLC % 1450°C×2h	0.2	0	/
AP % ≤	22(23)	24	22(24)
Thermal expansion 1000°C % ≤	1.28	1.3	/
CCS MPa ≥	30	25
one brick<20kg			35(30)
one brick≥20kg			30(25)

Characteristics Of Silica Fire Bricks

PER refractories are an important choice for a wide range of high temperature resistant kilns.
The main variety is silica fire bricks. Boiled by silica as raw materials through 1350 ～ 1 430 ℃. The main phase of the silica bricks will be transformed into Setting quartz, square quartz, and glass. The real density must reach 2.31 ~ 2.42 grams per cubic centimeter.

Silica refractory bricks are acidic refractory materials and have a good ability to erode with acid resistance. The load softening temperature is as high as 1640 ~ 1670 ℃, and the volume of the long-term use at high temperature is relatively stable. It has the advantages of thermal conductivity and high softening point, strong anti-acid slag erosion capacity.

Silica fire bricks are mainly acidic refractory materials composed of Setting quartz, square quartz, and a small amount of residual quartz and glass.
Silicon dioxide content is more than 94%. Real density 2.35g/cm3. Den har anti-syre slagg erosjon ytelse. High-temperature intensity. The softening temperature starts temperature of 1620 ~ 1670 °C. Used at high temperatures for a long time without deformation. Low thermal shock stabilitet (water heat is exchanged for 1 til 4 ganger) with natural silica as raw materials, plus an appropriate amount of mineralizer to promote the transformation of the quartz in the blank body into a lizard. In the restored atmosphere, it was slowly burned through 1350 ~ 1430 °C. When heating to 1450 °C, there is about 1.5 ~ 2.2%of the overall accumulation of swelling. Denne restekspansjonen vil gjøre sømmen tett og sikre at murverket har god gasstetthet og strukturell styrke.

Funksjoner av silika murstein for glassovn

PER Refractories har mange års produksjonserfaring. De ildfaste silikasteinene vi produserer har mange fordeler:
1. Høytemperaturvolumet er stabilt og vil ikke føre til at ovnskroppen endres på grunn av temperatursvingninger: glasssmelteovnen kan holde ovnskroppen uten deformasjon kl 1600 °C, og strukturen er stabil.
2. Mild forurensning av glassvæske: Hovedkomponenten i silikamursteinen med høy alumina er SIO2. Hvis det er en blokk eller et smeltende drypp under bruk, det vil ikke påvirke kvaliteten på glassvæsken.
3. Kjemisk erosjon: The silica refractory bricks of the upper structure are eroded by the gas volatilized R2O (alkaline metal) volatile in the material. A smooth layer of deterioration layer is generated on the surface, lowering the erosion speed and protecting the effect.
4. Its volume density is small: can reduce the weight of the furnace body. The raw material formed in an alumina-silica refractory brick is silicon. The higher the SIO2 content of silicon raw materials, the higher the fire resistance. Very harmful impurities are Al2O3, K2O, NA2O, etc., which seriously reduce the refractory resistance of refractory products.

Om PER Refractories Company

PER Refractories Company er lokalisert i Xinmi City, Henan-provinsen, hjembyen til ildfaste materialer i Kina. Vårt firma er en teknologibasert ildfast bedrift som integrerer R&D, produksjon, salg, og teknisk service. The rich resources and excellent quality in the territory provide unparalleled superior conditions for the production of refractory materials. Våre hovedprodukter er ildfast leirstein, høy alumina ildfast murstein, ildfast silika murstein, magnesium ildfast murstein, mullitt murstein, isolasjon murstein, og annen high-temperature resistant products.

Selskapet PER ildfaste er produksjonen base av grønne, energisparing, og miljøvennlige nye ildfaste materialer. Vårt firma har bestått ISO9001:2008 internasjonal sertifisering av kvalitetssystem og GB/T24001-2004 / ISO14001:2004 sertifisering av miljøledelsessystem, sertifisering av bedriftskvalitet inspeksjonsbyrå. Våre produkter selges godt i mer enn 20 land over hele verden. De er de foretrukne ildfaste produktene for metallurgi, ikke-jernholdige, petrokjemisk, glass, keramikk, og andre ildfaste industrier.