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Product overview
It belongs to aluminum silicate series refractory castable with more acidic. Alkali resistant refractory castable is made of aluminum silicate series material ( like electrofused corundum, zirconium corundum, magnesia, magnesium-alumina spinel, chromium ore and zirconite) as refractory aggregate and powder, adding with aluminate cement and admixture. The characteristics of alkali resistant refractory castable is that it will form the anti-erosion protection layer on the surface at the temperature of 1250℃, and can effectively prevent the the castable from the erosion and penetration of alkaline air flow and material at the high temperature in the cement kiln. This kind of castable is divided into heavy and light weight castable, with good performance under high temperature and alkali erosion resistance. The alkali resistant castable are widely used in cement rotary kiln because of its high strength, low density.
In addition, water glass clay refractory castable also has alkali resistance, can resist the erosion of Sodium melt. Therefore, it can be used in the alkali recovery furnace of papermaking industry and get good results.
Character:
It will form the anti-erosion protection layer on the surface at the temperature of 1250℃, and can effectively prevent the the castable from the erosion and penetration of alkaline air flow and material at the high temperature in the cement kiln.
Specification
Item |
NJ1 |
NJ2 |
NJ3 |
NJ4 |
NJ5 |
NJ6 |
|
Type of Castable |
Heavy |
Light |
|||||
Al2O3/% |
＜40 |
40 |
48 |
66 |
＞35 |
＞35 |
|
Density / g·cm-3 |
2.15 |
2.16 |
2.31 |
2.68 |
1.68 |
1.64 |
|
Cold crushing strength /MPa |
110℃ |
42 |
81 |
88 |
110 |
38 |
28 |
Modulus of Rupture /MPa |
110℃ |
5.4 |
7.8 |
9.8 |
11 |
4.0 |
2.5 |
Linear change after heating /% |
1500℃ |
-0.5 |
-0.4 |
-0.3 |
-0.98 |
-1.2 |
-1.2 |
Application
The alkali resistant castable are widely used in cement rotary kiln because of its high strength, low density. it also can be used in the alkali recovery furnace of papermaking industry.
Product packing
According to the requirement of customer
Why choose us?
Keep integrity, Growth together, Win-win partnership
Professional team: 15+ years experience in refractory production, sale and on-site project management, Make great efforts for excellent quality.
Experienced suppliers: 30+ years experience in production of refractory with certificate of ISO 9001:2015, Strictly follow the standard and procedure.
Serious attitude : PERFECTION OF SERVICE AND QUALITY. Our Quality requirement: Standard, Strict and Excellent. We firmly believe that keep integrity, Stand by quality and go farther.
Complete service: We provide best service from engineering consulting,refractory supply, products quality supervision and inspection and after-sales to our customers.
• Full, consolidated refractory package supplies
• Independent Procurement based on international specifications
• Consistent Data Flow from Offer to General Packing List
• On-Site pre-inspections and reporting to customer
• Full customer support for final inspection
• Arrangement & Monitoring of Door-to-door shipments
• Enhanced after-sales service, including support for brick layers
• FULL TRACEABILITY
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