$Raw Materials for Refractory:Fused Spinel Al2O3 74-76 MgO 23-25 System 1$
$Raw Materials for Refractory:Fused Spinel Al2O3 74-76 MgO 23-25 System 2$

$Raw Materials for Refractory:Fused Spinel Al2O3 74-76 MgO 23-25$

$Raw Materials for Refractory:Fused Spinel Al2O3 74-76 MgO 23-25 System 1$

$Raw Materials for Refractory:Fused Spinel Al2O3 74-76 MgO 23-25 System 2$

Raw Materials for Refractory:Fused Spinel Al2O3 74-76 MgO 23-25

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Loading Port:: Tianjin

Payment Terms:: TT or LC or DP

Min Order Qty:: 25 m.t.

Supply Capability:: 1000 m.t./month

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Quick Details

· Place of Origin: Henan, China

· Shape:particle or powder

· Material:Alumina

· Al2O3 Content (%): 74-76%

· Mgo Content (%): 23-25%

· CAO (%): 0.55%max

· Fe2O3:0.4%max

· SiO2Content (%): 0.4%max

· Model Number:Customer's Requirement

· Brand Name:CMAX

· Application:Metallurgy or Refractory

· Product name:Fused spinel

· Color：White

· Size:100MESH/200MESH/0-1MM/1-3MM/3-5MM/0-40MM or as customer's request

· Certificate:ISO9001

· Usage:Refractory

· Type:Refractory raw materials

· shape:particle or powder or clinker

· Packaging Details:Bags/In bulk/As costomer's requirement'

Quality assurance:

1.On a regular basis or as per your request,we entrust national testing agencies to conduct quality inspections

2. Strictly in accordance with the ISO9001-2008 international quality system standard,we monitor and manage the whole process throughout production,quality testing,and measurement to ensure product quality

FAQ:

Q: What kind of payments does your support?
A: T/T, L/C, Cash are accepted.
Q: Do you charge for the samples?
A: Accordeing to our company policy, the samples are free, we only charge the freight fee. And we will return the freight fee during the next order.
Q: Can you produce according to customers' design?
A: Sure, we are professional manufacturer.
Q: Do you have pictures?
A: Yes, please check the pictures:

FUSED SPINEL AL2O3 74-76 MGO 23-25 FOR REFRACTORY

Q: The fire prevention board line is made of what material?: Crural line: wooden, in the market, there are sjoiner woodblock, peach wood and artificial engraving. The second classification is stone and the most used one is the marble graved or ceramics well-made one is taken as the first choise. Its price is a little bit expensive than the wooden one, but also a suitable choise. Condole supports: It has various category. The general furniture choose plaster and anti-firing plate and the other also have a choice of steel. You can make a suitable choice according to the need. If it is contracting project, it depends on your project specific plan and funds plan. In a word, beauty and harmony should be given priority since it is the source of design.

Q: What is the fire resistance thickness of the thin fire-retardant coatings?: Our thin steelwork fireproof coatings: the fire resistance is 2.5 hours, the thickness is 4.9 mm, the fire resistance is 2.0 hours, the thickness is 3.5 mm, the fire resistance is 1.5 hours, the thickness is 1.75 mm, the fire resistance is 1.0 hours, the thickness is 1.17 mm.

Q: What are the materials for refractory materials? What are their names?: Basic refractories in Magnesium Oxide and calcium oxide as the main ingredient, commonly used is brick. Magnesium Oxide 80% to more than 85% containing magnesia brick, has good resistance to alkaline slag and slag, refractory clay brick and brick high ratio. Mainly used in open hearth furnace, oxygen converter, electric furnace, non-ferrous metal smelting equipment and high temperature equipment.

Q: Procedures for producing common refractory materials?: The general procedures of producing refractory materials include calcination of raw materials, selection of raw material , crushing, grinding, screening, mixing, ageing mixture, molding, drying, burning and etc. At present, the refractory factory usually purchases the calcined clinker, so the calcination of raw material is no longer a consideration of common refractory plants.

Q: What material is refractory material?: Basic refractory materials, basic refractory, CaO, basic, MgO style alkaline earth oxide. The refractory materials mainly refers to magnesia refractories, dolomitic and lime refractory refractory. Main categories: (1) strongly basic magnesite brick, magnesia carbon brick, limestone and dolomite brick refractory materials;(2) alkalescent magnesia chrome refractories, forsterite refractory, magnalium and magnesia-chrome spinel refractory, basic refractory materials, high-temperature caustic slag, alkaline solvent resistance, strongly acidic slag flux or acidic refractory. The reaction is mainly used in steel furnace such as colour metal smelting furnace and cement kiln.

Q: What are the main characteristics of the sic refractories?: The physical properties of SiC refractories include structural properties, thermal properties, mechanical properties, usability and job performance. The structural properties of refractory include porosity, bulk density, water absorption, air permeability, an the distribution of pore size. The thermal properties of refractory include thermal conductivity, thermal expansion coefficient, specific heat, heat capacity, thermal diffusivity, and thermal emission rate. The mechanical properties of refractories include withstand voltage strength, tensile strength, anti bending strength, torsional strength, shear strength, impact strength, abrasion resistance, creep resistance, adhesive strength, and elasticity modulus. The usability of refractories include refractoriness, load softening temperature, linear?change?on?reheating, thermal shock resistant performance, slag resistance, acid resistance, alkali resistance, hydration resistance, corrosion resistance to CO, conductivity, and inoxidizability.

Q: What level is the rock wool board fireproofing material ?: The fire rating classification is a provision for all insulation materials, rather than to separately divide rock wool. Determine the value of the material fire rating according to the relevant test items of 8624. As the rock wool is made from basalt fusion, so it is the level A non-combustible material. And those we usually see are the mineral?cotton and glass wool, with its refractory temperature lower than the rock wool's. Rock wool board is now mainly used in wall insulation, which is a level A fire insulation material.

Q: What is the the best matching ratio of refractory cement?: The ratio of cement and sand is about 30 per cent. Properties and Applications of refractory mortar: 1, Good plasticity and easy construction; 2, High bonding strength and strong corrosion resistance; 3, Relatively high refractoriness up to 1650 ℃ ± 50 ℃; 4, Good slag corrosion resistance; 5, Good thermal peeling. Refractory mortar is mainly used in coke ovens, glass furnaces, hot blast furnace and other industrial furnaces. Applied industry: Metallurgy, building materials, machinery, petrochemicals, glass, boiler, electric power, steel, cement, etc. And refractory cement is also known as aluminate cement. Aluminate cement takes bauxite and limestone as raw materials, alumina content of about 50% as the clinker. And it is a hydraulic cementing material made by grinding. Refractory cement is also known as aluminate cement. Aluminate cement is often yellow or brown or gray. The main mineral of aluminate cement is mono calcium aluminate (CaO · Al2O3, abbreviated CA) and other aluminates, and a small amount of dicalcium silicate (2CaO · SiO2), etc. It is a special cement.

Q: Which refractory is suitable for the tunnel kiln?: Shuttle kiln refractories requires the good thermal shock properties. Because the tunnel kiln is continuous firing furnace, the temperature in the kiln is long time stable and with little fluctuation. The shuttle kiln is intermittent kiln firing. The temperature in the firing kiln is adjusted by the firing curve. It is with a relatively short time and serious fluctuation. The seal and kiln car take use of the heavy corundum brick. If it is continuous kiln, the alumina hollow ball bricks are used in the burning zone. The seal of the burning zone takes use of the kiln car brick and the seal takes use of the heavy corundum brick.