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Little MgO Content Lightweight Alumina Silicate Firebrick for Annealing Furnace Durable

$Henan Hongtai Kiln Refractory Co.,Ltd.$

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Address: Group 4, Chuling Village, Chaohua Town, Zhengzhou, Henan, China

Contact name:Liu

Henan Hongtai Kiln Refractory Co.,Ltd.

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Little MgO Content Lightweight Alumina Silicate Firebrick for Annealing Furnace Durable

Country/Region	china
City & Province	zhengzhou henan
Categories	Cement

Product Details

Product Description

light weight silica brick

Also known as siliceous insulation brick. Lightweight refractory material with silicon dioxide above 91% and bulk density below 1.2g/cm3. The refractoriness and softening temperature under load are not much different from ordinary silica bricks with the same composition. However, due to the large number of pores, the compressive strength, slag resistance, and corrosion resistance are not as good as ordinary silica bricks, but the thermal shock resistance has been improved. Using finely divided silica as the raw material, the critical particle size is usually no more than 1mm, and the particles smaller than 0.5mm are no less than 90%. It is prepared by adding flammable substances to the ingredients or adopting the gas generation method to form a porous structure and firing. Can also be made into unburnt products. It is mainly used for all parts of the kiln that requires heat insulation or lightening of its own weight without direct contact with the melt, free from corrosive gas, and not subject to sudden temperature changes. It is used at high temperature and cannot be in contact with alkaline refractory materials. According to different materials, the highest operating temperature is 1200～1550℃.

manufacture

Light silica bricks and heavy silica bricks will go through each stage of the conversion of quartz to cristobalite and tridymite during firing. The following methods can completely transform the quartz, such as adjusting the time of the firing system, uniform lumps, using mineralizers (commonly used oxides Fe2O3 and CaO), or combining with previous methods. Thermal conductivity is an important performance of thermal insulation materials, it shows the thermal insulation performance and bulk density of the material. Lightweight silica brick is a very special material, in fact, it has the potential to be used in only two industrial fields. In most cases, insulating silica bricks and dense silica bricks are used as the insulating part of the structural layer. Commonly used is the heat insulation of the glass kiln, mainly the heat insulation of the kiln vault, so as to reduce heat loss and increase the efficiency of the melting process. Advantages of Lightweight Silica Brick 1. Lightweight silica bricks are incomparable to lightweight clay bricks. Lightweight silica bricks with a porosity of about 50% have a lower thermal conductivity than lightweight clay bricks. 2. The deflection temperature under load is 1620-1640℃, while the light clay brick is only 1200-1300℃, which does not shrink under high temperature. On the contrary, it expands at 1450°C (about <0.2%), and the volume is stable, while the light-weight clay brick shrinks greatly, which is easy to crack the furnace lining. 3. The kiln that can work at a temperature of 1550~1600℃ can be used for a long time; it can be directly built on the hot surface in contact with the furnace gas, and it can also be used on a large-span furnace roof; Use lightweight silica bricks. 4. The use of lightweight silica bricks in the lining of the heating furnace can shorten the heating period and reduce fuel consumption by 35% compared with the use of lightweight clay bricks. The use of lightweight silica bricks on the top of the firing kiln (inverted flame kiln) can prolong the service life of the top.

Specification

Item			Properties
Item				QG-1.0	QG-1.1	QG-1.3
Sio₂ %	≥	91	91	91
Refractoriness ℃	＞	1680	1680	1670
0.2 Mpa Refractoriness under load ℃	≥	1480	1560	1560
Cold Crushing Strength Mpa	＞	3.5	3.5	3.5
True Density g/cm³	＞	2.39	2.39	2.39
Bulk Density g/cm³	＞	1	1.1	1.2
Permanent Linear Change On Reheating(%) 1550℃×2h		0~+0.5 1450℃×2h	0~+0.5	0~+0.5
Thermal Conductivity (W/MK)350℃		0.55	0.6	0.65

Packing & Delivery

Packaging of powder shape or raw material products
1. 1 ton bags in container, 25 MT/20 'FCL.
2. 25 kg bags in container, 25 MT/20 'FCL
3. 25 kg bags in ton bags, then in container, 25 MT/20 'FCL
4. as the customer' request
Packaging of Bricks
1.on wooden pallets with plastic cover: wooden pallet size :930*930 or 1000*1000 mm,
2.Load weight of each pallet: 1.5-2.0 tons.

Shipping
1.Our packaging is as per customer’s request
2.Normal goods delivered by sea transport
3.Sample shipping by express
4.We will shipping and delivery goods timely, quality and quantity guaranteed, and also in accordance with the contract and customer's requirement completely.

Delivery:
15-30 days working day for large quantity. The shipment we will arrange as soon as possible. Of course, if it is a custom
products, the shipping time will delay.
Sample:
Usually by EMS, DHL, UPS, TNT, FedEx. Anyway you like. Bulk order: Usually by sea.
Payment:
It can be through T/T, L/C at sight. The specific terms determined according to the quantity of the goods, etc.
Your inquiry related to our product & price will be replied within 24 hours.
Export:
Our products have been exported to many countries: Australia, Chile, USA, Russia, UK, Indonesia, etc., good quality have be
approved by our clients.

Company Profile

Henan HongTai kiln refractory co., LTD. Main products are high alumina brick, clay brick, fused zirconium corundum brick, fireproof ball lightweight insulation brick, wear-resistant pouring material, corundum pouring material, low cement high strength pouring material, impermeable material, self-flowing material, plastic material, and various types of refractory materials.For different industries, the cement industry with anti-flaking high-alumina bricks, alkali resistant bricks, phosphate bricks;Boiler industry USES all kinds of brand wear-resisting brick, corundum brick, mullite brick and other finalizing materials.The company insists on "product quality is the life, enterprise integrity is the foundation", in the fierce market competition, won many users' trust and praise.The products are sold all over the country, as far as Vietnam, India, South Korea, Pakistan, Kazakhstan and other southeast Asian countries and regions.

Henan HongTai kiln refractory co., LTD. : "quality first, reputation first, customer first: it is our aim."Scientific management, strong technical force, perfect testing means, advanced technological equipment and stable product quality are the guarantee of quality service. Henan HongTai kiln refractories co., LTD sincerely hopes to cooperate with you hand in hand and in good faith.

Why Choose Us

1.Strong professional:
Our company has thirty years producing experience in refractory products. Our manager will supervise on a various refractories production materials, process control, quality supervision and package delivery, and ensure the products are 100% qualified.
2.Annual supply:
Our company has passed ISO 9001 quality management system certification and SGS certification. And the annual supply of shaped and unshaped refractory product is 28, 800-35, 000 tons.
3.Export experiences:
Now we have gained a global sales network reaching Russia, South Korea, Vietnam, Pakistan, Bulgaria, France, India, Egypt, Congo, Angola, South Africa etc.
4. Production equipment:
Production and testing equipment are new, complete and automated or semi- automated. Such modern facilities and equipment have provided the fine technical guarantee for the production and testing.
5. Testing equipment:
Our company's testing equipment as follows:
High Temperature RUL. Tester
Bulk Density Tester
The Pressure Tester
Refractoriness Tester
Our competitive Advantage:
1.Competitive Price. Make the products competitive in your market.
2.Quick Response:We promise quick response at the very first moment when we received your request. 3.Superior Customer Service:The company provides after sales service ensuring customer’s satisfactions,we believe in Long term partnership bringing loyalty.
4.We had been on this filed for many years and we have our own research team,the production process could be controlled strictly.
5.We have developed stable customer base overseas and kept long-term cooperation.

FAQ

1. How can you control your quality?
For each production processing, we have complete QC system for the chemical composition and Physical properties. After production,
all the goods will be tested, and The quality certificate will be shipped along with goods.
2. What's your delivery time?
It usually needs about 15 days- 30 days after receiving the deposit.
3.Do you have any experiences of export?
Yes,and Now we have gained a global sales network reaching Taiwan, Russia, Korea, Vietnam, Pakistan, Bulgaria, French, India,
Congo, Angola, South Africa, and so on.
4. Do you provide free samples?
Yes, we can provide a free sample for testing, If we have sample in stock, The quantity based on the material type, The buyer should bear all the shipping costs.
5. Can we visit your Company?
Yes, certainly. You are very welcome to China and we will be honored to have a customer and friend.

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Henan Hongtai Kiln Refractory Co.,Ltd.

Little MgO Content Lightweight Alumina Silicate Firebrick for Annealing Furnace Durable

Product Details

light weight silica brick

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