Corundum Spinel Castable for Arc Furnace Introduction
Corundum spinel castable for as a kind of hot sales refractory castable for furnace application in Rongsheng refractory castable factory manufacturing with mainly used to widely used in the Arc furnace. Corundum spinel castable refractory have good properties of excellent thermal shock resistance and slag resistance. There are high quality refractory corundum spinel castable for sale cheap in RongSheng refractory castable factory can provide refractory castable specification and category as well as competitive price & high grade quality castable refractory, other specification according to customer requirements, welcome to contact us or email us for free quote or price list.
Corundum Spinel Castable for Arc Furnace Definition
the corundum spinel castables form three kinds of high melting mineral phases, namely calcium hexaluminate, magnesium aluminum spinel and brown corundum after the high temperature treatment or application, which form a good combination with each other and have good performance. Studies have shown that compared with corundum-based spinel-based castables with pre-synthesized spinel, refractory corundum-spinel castables produced by in-situ formation of magnesia with spinel have better slag resistance, The hydration of the fine powder of magnesia makes the rheology of the castable worse, which affects refractory corundum spinel castable construction. The addition of dolomite micropowder produces MgO and CaO and reacts with Al2O3 to form spinel and calcium aluminate minerals in situ, the two phases are evenly distributed with each other, refractory castable is expected to produce good results.
Corundum Spinel Castable for Arc Furnace Features
1．Corundum spinel refractory castable have erosion resistance.
2．Fireproof corundum spinel castable have good slag resistance.
3．Refractroy corundum spinel castable have good volume stability.
4．Fire corundum spinel castable have resistance to slag permeability.
Corundum Spinel Castable for Arc Furnace Specification
| Item |
Corundum Spinel Castable |
| Cold Crushing Strength(Mpa) |
110℃*24h |
35 |
| 1500℃*3h |
100 |
| Modules of rupture(Mpa) |
110℃*24h |
5 |
| 1500℃*3h |
20 |
| Permanent linear change(%) |
1500℃*3h |
+-0.3 |
| Thermal Shock Resistant(%) |
1400℃*1h*7 |
5 |
| Al2o3(%) |
91.9 |
| Mgo(%) |
3.56 |
| Bulk Density |
3.08 |
Corundum Spinel Castable of Factors Affecting the Performance
1.Under the condition that the amount of magnesium oxide and cement added is constant, the addition amount of the silicon fine powder is increased, the linear expansion of the refractory corundum spinel castable can be effectively suppressed.
2.The medium coarse aggregate is too much and contacts each other to form a skeleton. If the matrix slurry is to drive the aggregate particles to flow, the friction between the aggregates must be overcome, so refractory castable is difficult to flow. When the coarse aggregate is less and is buried in the continuous matrix slurry, the aggregate does not contact or the contact points are less and does not form a skeleton, so that the refractory castable substrate drives the aggregate particles to flow smoothly, so the corundum refractory spinel castable has a good flow.
3.The fluidity of self-flowing refractory castables is greatly affected by the ratio of particle gradation and bone powder.
4..When the amount of magnesium oxide added is constant, the amount of cement added is increased, the linear expansion rate of the sample is first increased and then decreased.
5..Reducing the fused corundum particle size can increase the linear expansion rate of the corundum spinel refractory castable.
Corundum Spinel Castable Supplier in Rongsheng Refractory Material Manufacturer
1.Rongsheng refractory castable have rich refractory raw materials and 20 years experienced in the refractory bricks manufacturing. Rongsheng refractory castable can provide specification and category as well as competitive price & high-grade quality refractory castable products.
2.Rongsheng refractory castable factory have any certificate according to client requirement, such as ISO9001 certificate, CE.
3.Refractory production and customization, fast delivery, short cycle, and more peace of mind.
4.Refractory construction and installation, one-stop procurement platform plus solutions, more thoughtful.
5.Professional after-sales team, serving every customer throughout the year
