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Product Name:Crucible Furnace Cover Brick
Product Description:
Clay Brick, clay brick mainly mullite (25% ~ 50%) and cristobalite and quartz (up to 30%) composition. Usually, the hard clay is used as raw material to calcine the clinker in advance, and then the soft clay is used to calcine the brick at 1300 ~ 1400 °C. It is commonly used in blast furnace, hot blast furnace, heating furnace, power boiler, lime cellar, Rotary Cellar, ceramic and refractory brick firing cellar.
Huanya supplying a comprehensive range of CLAY FIREBRICKS.Alumina content in approximate 28-45% are classified to CLAY FIREBRICKS
Note:Special-shaped Clay Firebrick is more expensive than commom square or rectangle ones.
Clay Firebrick Product Data
Material
Common
Special
Blast furnace
Hot blast stove
Glass Furnace
Item
SK32
SK34
ZGN-42
GN-42
RN-42
RN-40
RN-36
BN-40a
BN-40b
Pyrometric Cone Equivalent
Orton cone
31-32
33-34
–
–
–
–
–
–
–
Refractoriness (°C)
1715
1760
1760
1760
1760
1740
1700
–
–
Bulk Density (kg/m3)
2100-2200
2200-2250
2200
2200
2200
2200
2150
2250
2250
Apparent Porosity (%)
22-24
18-20
≤15
≤16
≤24
≤24
≤25
≤18
≤18
Cold Crushing Strength (MPa)
22-32
30-35
≥58.8
≥49.0
≥29.4
≥24.5
≥19.6
≥49.0
≥34.3
Modulus of Rupture (kg/cm2)
55-70
60-80
–
–
–
–
–
–
–
Reheat test,
permanent
linear change
after heating at
(1350°C%,3h)
–
–
–
–
–
0~-3
0~-0.5
(1400°C%,2h)
–
–
–
–
–
–
–
0~-0.4
0~-0.4
(1450°C%,3h)
–
–
0~-2
0~-3
0~-0.4
–
–
–
–
(1400°C%)
0.0-0.2
-0.18
–
–
–
–
–
–
–
0.2 MPa soft under load (%)
–
–
≥1450
≥1430
≥1400
≥1350
≥1300
≥1450
≥1400
SiO2 (%)
57.8
52.4
–
–
–
–
–
–
–
Al2O3 (%)
36.2
42.1
≥42
≥42
≥42
≥40
≥36
≥40
≥40
Fe2O3 (%)
2
1.4
≤1.7
≤1.7
–
–
–
≤1.5
≤1.5
Cao (%)
0.5
0.4
–
–
–
–
–
–
–
Na2O+K2O+Li2O (%)
0.5
0.5
–
–
–
–
–
–
–
Crucible furnace alchemy operation process is as follows:
(1) Heat up and bake: slowly raise the furnace temperature and bake the crucible. The slow heating is to prevent the wet crucible from bursting due to sudden heating.
(2) Heating and feeding: When the temperature continues to rise to 800 °C, take out the crucible from the furnace, carefully add the stirred charge into it, and cover the upper part of the charge with a small amount of borax. When the charge in the crucible is melted, stop the oil and stop the air, add part of the charge wrapped in paper, and continue heating. Charges can be added multiple times.
(3) Melting: After the charge is added enough, it enters the full melting stage. Usually, a 20# crucible can melt 10-15 kg of gold mud at a time. It takes 1.5 hours to melt. Take it out, and quickly pour the melt into a squatting tank (a conical cast iron tank with a big mouth and a pointed bottom) to cool in layers, pour it out after condensation, and strike with a small hammer to separate the slag from the gold-silver alloy.
(4) Ingot casting: After smelting, all gold nuggets are concentrated for ingot casting.
Crucible smelting is mostly found in small mines, and is suitable for smelting gold placer, amalgam and gold-containing steel wool, and can also be used for smelting cyanide gold mud.
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
Factory and Machines
Huanya Refractory CO.,LTD has been established over 10 years, now we have become a group company with 10 factories,a series of refractory products can be manufactured,for example:Fire clay brick,high aluminum brick,insulation brick,all kinds of refractory castable used in the kilns construction,Brown corundum,ceramic fiber products, refactory balls, refactory aggregate,fire clay powder and so on.Here all friends from all over the world are welcome to have a visit of our factory and company,we are very glad to offer the best performance and high quality refractory materials and make the long-time cooperation with you and your company.
FAQ
Q : Do you have customized service?
A : Exactly yes. Designs, sizes, colors are available, if any ideas about the bricks, welcome to contact us for more technology information.
Q : Can you provide free samples ?
A : Yes, we are able to offer free samples, but the shipping costs need to come out of your.
Q.What's the MOQ of trial order?
A:No limit,We can offer the best suggestions and solutions according to your condition.
Q.What are the payment terms?
A:Usually T/T,but L/C,Western Union etc are available for us.
Q: How do you control the quality of your products?
A: We are manufacturer with our own factory, so it is convenient for one-stop production and inspection. There are experienced engineers and professional QC team in our company. The quality is definitely reliable.
Contact person: Martin
Tel:8617328087470
Email: Martin@huanya-refractory.com
www.huanya-refractory.com
Adderss:4A02, 4A Floor, Ruiying Commercial Building, Dali Town, Nanhai District, Foshan City, Guangdong, China
Price:1.00
Product Website:http://www.huanya-refractory.com
Company Description
Foshan Huanya New Material Co., Ltd.
Address:GuangDongGuangDongFoShanNanHai3A09, 3AFloor, Ruiying Commercial Building, Dali Town, Nanhai District, Foshan City, Guangdong Province, China
Descption:Huanya New Materials Co., Ltd. is headquartered in Foshan City, Guangdong Province, and has branch factories in Henan Province and Shanxi Province. We have over 20 years professional experience of kiln materials, and R&D capability, production capability, sales capability of refractory materials, specializing in high-end refractory products and raw materials.
Registered Capital:1000000
EmployeeNum:50
Foshan Huanya New Material Co., Ltd.
Contact:Martin Zheng
Telphone:86-0757-85503335-
Fax:86-0757-85503335-
Email:Martin_wf_cheng@aliyun.com
Company Website:https://www.huanya-refractory.com
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