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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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High quality Silicon carbide brick SiC refractory bricks for metal smelting for sale
The silicon carbide brick is a refractory material made of SiC as the main raw material.Containing 72% ~ 99% SiC.It is divided into clay bound, Si3N4 bound, SiAlon bound, β-SiC bound, Si2ON2 bound and recrystallization silicon carbide bricks.Silicone carbide brick has high thermal conductivity, good wear resistance, thermal shock resistance and corrosion resistance.
It can be used for lining of aluminum electrolytic cell, molten aluminum conduit, kiln furniture for ceramic kiln, bottom part of furnace body, waist and belly of large and medium-sized blast furnace, lining of aluminum refining furnace, lining of zinc distillation tank, etc.
| Item | Oxide bond SiC brick | Green SiC brick | Corundum silicon carbide brick | Mullite silicon carbide brick | High alumina SiC brick |
| SiC% | ≥90 | ≥90 | ≥70 | ≥65 | ≥20 |
| Al2O3% | - | - | - | >20 | >55 |
| Fe2O3% | ≤0.6 | ≤0.6 | ≤1.0 | ≤1.0 | ≤1.5 |
| Bulk density g/cm3 | ≥2.6 | ≥2.6 | ≥2.7 | ≥2.3 | ≥2.5 |
| Apparent Porosity % | ≤17 | ≤17 | ≤22 | ≤20 | ≤20 |
| Cold crushing strength MPa | ≥100 | ≥100 | ≥100 | ≥80 | ≥80 |
| Refractoriness under load °C | ≥1650 | ≥1650 | ≥1700 | ≥1600 | ≥1600 |
According to the different combination ways, the specific
production process and performance of silicon carbide brick are as
follows:
First, silicon carbide brick combined with silica
All to silicon carbide particles and fine powder, with part of
silica, quartz fine powder as binder composition of products, are
silicon dioxide combined with silicon carbide products.
Such as the use of 90% different particle size of silicon carbide
and 5%-10% of the mixture of silica and calcium oxide powder (less
than 0.088mm), the mixing ratio of 8:2 or 9:1.An appropriate amount
of organic binder (pulp waste liquid, dextrin, methyl cellulose)
was added into the mud, which was pressed and formed by the brick
press, dried and fired at 1300 ~1400℃
Second, clay bonded silicon carbide brick
Clay combined with silicon carbide products are silicon carbide as
the main raw material, with clay as the binder fired refractory
products.The product has high thermal conductivity, thermal shock
resistance and good wear resistance.Used as lining brick for
aluminum refining furnace, distillation tank for zinc distillation
furnace and cooler for cement kiln.
Three, high aluminum combined with silicon carbide brick
(1) Production technology.Using silicon carbide (SiC 98.32%) and
Chenxi mullite as raw materials, the mullite combined silicon
carbide brick was made.SiC sand particle size is 8~5mm, 5~3mm,
3~1mm.The mixed fine powder is made of silicon carbide powder and
mullite powder, the particle size of which is less than
0.044mm.After batching, the material is mixed and trapped in the
mixing machine for 24h, and the material is formed on the vibration
pressure molding machine.The blank body was naturally dried for 15
days, dried for 15 days at 30 ~35℃, and baked for 6 days in a kiln
at 200 ~350℃.Products are fired in the inverted flame kiln.The
maximum sintering temperature is 1500℃, holding for 6 days, and the
total sintering time is 10 days.
(2) Physical and chemical properties.The physical and chemical
properties of mullite combined with SiC brick are as follows: SiO2
82%, mullite 15%, apparent porosity 17%~19%, volume density
2.54g/cm3, load softening temperature more than 1700℃, compressive
strength more than 110MPa, thermal shock resistance (1100℃ ~ water
cooling) more than 20 times.This kind of silicon carbide brick can
be used for iron outlet of ferroalloy electric furnace and ring
brick of blast furnace tuyeres.
Packaging
1. 1 ton bags in container, 25 MT/20'FCL.
2. 25kg bags in container, 25 MT/20'FCL
3. 25kg bags in ton bags, then in container, 25 MT/20'FCL
4. as the customer' request
Packaging of SK37 High Alumina Refractory Brick
1.on wooden pallets with plastic cover: wooden pallet size :930*930
or 1000*1000mm,
2.Load weight of each pallet: 1.5-2.0 tons,
Shipping of SK37 High Alumina Refractory Brick
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.
