Raw Materials for Refractory:Caustic Calcined Magnesite Products
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Caustic calcite magnesite is made from nature magnesite through calcining in reverberatory furnace,rotary furance and boiling furnace.This products calcine uniform possess stable quality,high purity and well-activeness, are used widely in paper making, chemical industry, production of pharmaceuticals,animal husbandry, rubber making refractory material and buliding material industry etc.
CAUSTIC CALCINED MAGNESITE
| MGO% | SIO2% | CAO% | LOI% | |
| CCM-67 | ≥ 67 | ≤ 8 | ≤3 | ≤11 |
| CCM-68 | ≥ 68 | ≤ 8 | ≤3 | ≤11 |
| CCM-69 | ≥ 69 | ≤ 8 | ≤3 | ≤11 |
| CCM-80 | ≥ 80 | ≤ 7 | ≤ 2 | ≤ 10 |
| CCM-85 | ≥ 85 | ≤ 6 | ≤ 2 | ≤ 8 |
| CCM-87 | ≥ 87 | ≤ 5 | ≤ 2 | ≤ 7 |
| CCM-90 | ≥ 90 | ≤ 4 | ≤ 2 | ≤ 6 |
| CCM-92 | ≥ 92 | ≤ 3 | ≤ 2 | ≤ 5 |
| CCM-94 | ≥ 94 | ≤ 2 | ≤ 2 | ≤ 4 |
| CCM-95 | ≥ 95 | ≤ 1 | ≤ 1.5 | ≤ 3 |
FUSED MAGNESITE
| MGO% | SIO2% | CAO% | LGL% | B.D g/cm3 | SIZE mm | |
| FM | ≤ 98 | ≤ 0.5 | ≤ 1.0 | ≤ 0.2 | ≤ 3.5 | ANY SIZE |
| FM | ≤ 97 | ≤ 1.2 | ≤ 1.2 | ≤ 0.2 | ≤ 3.5 | ANY SIZE |
WHITE FUSED MAGNESITE
| MGO% | SIO2% | CAO% | LGL% | B.D g/cm3 | SIZE mm | |
| WFM | ≤ 97 | ≤ 0.7 | ≤ 1.5 | ≤ 0.2 | ≤ 3.45 | ANY SIZE |
| WFM | ≤ 97.5 | ≤ 0.7 | ≤ 1.5 | ≤ 0.2 | ≤ 3.45 | ANY SIZE |
- Q: What are the materials of white firebricks?
- White refractory materials are generally divided into two types, namely, unshaped refractory materials and shaped refractory materials. Unshaped refractory materials, also called castables, is a mix of powdery particles of many aggregates and one or multiple adhesives. They must be stirred well with one or multiple liquids when in use, which has a strong liquidity. Unshaped refractory materials generally refers to firebricks. They have standard rules about their shapes and can also be processed temporarily as needed.
- Q: What are the fire endurance requirements of class A fire resistant door ?
- Hardwares are professional fire resistant lock, fireproof?door closer, fire hinge, handle, latch and sequencer, and they can also be configured according to user needs. Fire resistant time of class A and B fire resitant door is 12h and 09h respectively. It can also be customized according to customer needs into a variety of non-standard specifications. Steel fire door is developed in accordance with the national standard GB12955-2008, and in line with ISO3008, BS476 standards. Requirement: fire endurance should meet the A,B and C fireproof requirements respectively. You can also choose to install hold-open door device to leep the door leaf usually in open. Doorframe and door leaf is made up of imported or domestic quality electrolytic steel plate, electro galvanized steel plate or stainless?steel plate, filled with quality expanded perlite fireproof?panel which can withstand high temperature above 1200 ℃. The surface is processd with electrostatic spraying plastics, and auxiliaries are stainless steel fire resistant lock (or pipe shaft lock ) , galvanization for steel (or stainless?steel) fire hinge, domestic(or imported) door?closer.
- Q: What is the upper temperature limit for refractory materials?
- The key depends on what refractories you use
- Q: Who can introduce the difference between galvanized fireproof?coatings and steel structure fireproof materials?
- Steel structure with heat galvanization has a process requirement, which is to spray fireproof coatings. Fireproof coatings have different functions and purposes from galvanized process. When the steel surface derusted, it generally needs to brush rich-zinc primer before spraying fireproof coating. Fireproof coating plan itself includes anticorrosion plan, and fireproof coating is just a layer of coating plans, which is an intermediate layer in general. Fireproof coating plan generally includes primer, fireproof coating and finishing paint. Some fireproof coatings can be directly painted on the bare steel elements without primer and finishing paint.
- Q: What is the concept of lightweight refractory material?
- Lightweight refractory material has high porosity, mechanical strength and erosion resistance. Compared with normal refractory bricks, it is a kind of refractory material with large volume shrinkage in high temperature, low thermal conductivity and small bulk density. It is used as thermal insulation material in industrial furnace and other thermal equipments. It has poor wear resistancel.
- Q: Manganese steel belongs to refractories
- Material wear and other harsh working conditions, extrusion, there will be work-hardening phenomenon rapidly on the surface. The most important feature of manganese steel is that it is not refractory under a strong impact, and under extrusion conditions, part of it will be fractured. The main form of damage is wear and consumption: It is a kind of inorganic non-metallic material whose refractoriness is not lower than 1580 ℃, mainly used to endure impact. Manganese steel is a kind of high strength steel, which is free of deformation, so that it can remain austenite good toughness and ductility at heart while keeping good wear resistance at the same time on hardened layer. Refractories are
- Q: What is the acceptance standard of refractory?
- Feeler gauge is used to check the thickness of the refractory brickwork joint. The top of the gauge can not be sharpened. Feeler gauge is of the width of 15mm, length of 100mm and thickness of 1, 1.5, 2 or 3mm. The thickness is eligible when the depth which the feeler gauge is inserted in is less than or equal to 20mm. Ten places should be inspected per 5m2 of masonry surfaces. It is qualified when the condition in which thickness of the brickwork joint is 50% larger than a predetermined depth is not less than five times and it is excellent when the condition is no more than two times.
- Q: what is the Specifications Grading for Fireproof rubber insulation materials ?
- At present, China Building Materials has two grading criteria for combustion performance. "Combustion Performance Classification Method of Building Materials" and "Combustion Performance Classification Method of Building Materials and Products" (GB8624-2006). Among them, one of the major changes of GB8624-2006 and GB8624-1997 is to divide the material combustion performance grading from homogenous material)Class A (composite sandwich material), B1, B2 and B3 level five minutes as A1, A2, B, C, D, E, F seven levels.
- Q: How many kilns using refractories are needed? What are the furnaces respectively?
- Kiln and five hundred-degree centigrade thermal equipment need to use refractories, glass furnaces, electric arc furnaces, mixer, cement rotary kiln, open hearth furnace and limestone kiln; in fact, when the temperature is more than four, the mesh belt furnace, blast furnace, cupola oven, stove, pushing plate kiln, furnace, heat treatment furnace, roller kiln, down draft kiln, ladle, coke, shuttle kiln,etc.
- Q: What types does refractory floor include?
- The categories of refractory are: 1. the best overall performance stone flooring (waterproof, fire retardant) The full name is microcrystalline stone flooring. It is a high-performance waterproof and fire-retardant environmental wood floor synthesized with high and new technology. Its unique raw material is ground calcium carbonate micro-crystalline polymer stone with natural resin and other twenty more imported spreadings. It is formed by refining with high temperature (300 degree centigrade) and high pressure (9,000kg). It is an environmental healthing high-performance material. Its product is innocuous and unpoisonous, and won't age, deform, fade while it is fire retardant, waterproof, maintenance-free and quality, so it is an inevitable repalcement with traditional wood floor. This product has been confirmed as national key promotion program. 2. Wear-resistant composite solid wood floor It is also known as super wear-resistant multi-layer solid wood floor. First stiffening layer surface (based on inorganic materials and steel fibers for paper impregnated with thermosetting amino resin with solid wood or plywood blockboard substrate surface as a combination of facing layer), the front is wear-resistant layer, and the back is balance layer. Thtough hot pressing, it is a grooved and tongued floor, a new impregnated paper laminate floor. It also has the same wear-resistant quality as laminate floor, beauty and foot feel as solid wood floor, stable structure as solid wood composite floor, etc. 3. Waterproof plastic wood floor Plastic wood (also known as "wood plastic" or "plastic wood") composites, and the English name is WOOD-PLASTIC-COMPOSITES, WPC for short.
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Raw Materials for Refractory:Caustic Calcined Magnesite Products
- Ref Price:
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- Loading Port:
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