$Flint Clay Raw Materials for Refractory System 1$

$Flint Clay Raw Materials for Refractory$

$Flint Clay Raw Materials for Refractory System 1$

Flint Clay Raw Materials for Refractory

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

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Supply Capability:: 800T m.t./month

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Calcined flint clay has been processed through a series of procedures, such as remove impurities, magnetic-selected to move iron and spraying drying etc. Water-washed kaolin has been used very effectively as functional filler in ceramic and so on.

Calcined flint clay is mainly used for manufacturing high-quality refractory products, refractory castable, sagger, kiln furniture, crucibles, ceramic fiber, precision casting sand, ceramics products, etc.

Features of calcined flint clay:

High refractoriness.

Physicochemical stability.

Volume density high.

Low porosity.

Low water absorption.

Fully calcined.

Low impurity content.

Pure white.

Specifications of calcined flint clay:

Size of particles: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-15mm, 0-5mm, 0-50mm.

Size of sand: 8-16, 16-30, 30-60, 30-80, 60-80, 80-120 (mesh).

Size of powder: -200mesh, -270mesh, -325mesh.

Physical and chemical index of calcined flint clay:

Item/Grade	YNS45	YNS45	YNS44	YNS44	YNS43	YNS42	YNS40	YNS36
Item/Grade	A	B	A	B	YNS43	YNS42	YNS40	YNS36
Al₂O₃ %	46-48	45-48	44-48	44-48	43-48	42-46	40-46	36-42
SiO₂ %	49-52	49-52	50-53	50-53	50-53	50-53	50-54	50-55
Fe₂O₃ % (max)	1.0	1.15	1.3	1.5	2.0	2.5	3.0	3.5
TiO₂ % (max)	0.8	0.8	0.9	0.9	1.0	1.1	1.2	1.3
K₂O+Na₂O % (max)	0.3	0.3	0.4	0.4	0.4	0.5	0.5	0.6
Ca0+Mg0 % (max)	0.5	0.5	0.5	0.5	0.5	0.6	0.7	0.8
Bulk density g/cm³(min)	2.58	2.55	2.52	2.50	2.45	2.40	2.37	2.30
Refractoriness °C(min)	1780	1770	1760	1750	1740	1720	1710	1700
Impurities % (max)	0.5	1.5	2.0	2.5	3.0	3.5	4.0

Q:Who knows which chrome refractories produced by the Henan refractory plant can be used for continuous casting?: Field casting experiments are needed to verify,

Q:Is it normal for caable fire resistant material to catch on fire?: Abnormal, preventive measures: 1 take fire preventive measures. Measures taken for fire retardant measures of cable: (1) seal closely with fire resistant materials holes ran by cables through walls, shafts to prevent the cable fire, high temperature gas diffusion and spread when cables are on fire. (2) to wrap the cable with the insulation refractory material, when the cable is surrounded with fire, warpped cable is insulated by the insulation material from fire, so it will not be burned. If the cable itself is on fire, fire will be extinguished thankes to lack of oxygen in warpped cable, to avoid the fire to spread out. 2 to strengthen the cable circuit switch and regular protective check and maintenance, to ensure that the action is reliable. 3 to strengthen the cable operation and monitoring, to avoid the overload of the cable operation. . 4 regularly clean dust on the cable, to prevent cable from catching on fire due to the accumulation of dust. 5 to ensure the construction quality, the quality the cable must be strictly in line with the requirements and standards. 6 cable laying should maintain enough distance form the heat pipe, control cable is no longer than 0.5 meters; power cable is no longer than l meters. Control cable and power cable should be divided into slots, be layered and seperated instead of being overlapped . For the parts that do not meet the requirements, measures must be taken to insulate heat and fire. 7 regularly teat cable , abnormal problem should be handled in a timely manner. 8 install fire alarm so that fire will be discovered on time, and cables will not catch on fire. 9 the cable trench should be kept dry to prevent the cable from being affected with damp, or leading to declined insulating function and short circuit.

Q:What kind of refractory material should be used for common boiler?: Build by using clay refractory mortar. Common clay brick is used as combustion layer. Xindeyuan Refractory Material, red?brick is used as external wall. Light clay brick is used as thermal insulation layer, thank you.

Q:Does the external wall thermal insulation materials level b1 need the fire barrier zone?: Residential buildings should meet the following requirements: 1, The height of building is greater than or equal to 100m, the combustion performance of thermal insulation material should be level A. 2, The height of building is greater than or equal to 60m but less than 100m, the combustion performance of thermal insulation material should not be less than the level B2. When using the level B2 thermal insulation material, each layer should set a horizontal fire barrier zone. 3,The height of building is be equal or greater than 24m but less than 60m, the combustion performance of thermal insulation material should not be less than the level B2. When using level B2 thermal insulation material, each two-layer should set a horizontal fire barrier zone. 4, The height of building is less than 24m, the combustion performance of thermal insulation material should not be less than the level B2. Besides, when using level B2 thermal insulation material, each three-layer should set a horizontal fire barrier zone. According to this understanding, it can not be set.

Q:Who knows that among refractory materials, insulation boards from which refractory material industry is superior in quality?: Using high temperature insulation material during casting process .In the molding, assembly the insulation?board on the ingot head or install heat insulation cap . There are three ways to install the molded steel insulation board and install insulation?board on at the head of the ingot, namely, clamping, nail fixation and mosaic technique.Compared with clay-based liner, the use of insulating board will improve high steel billet rate up to about 5% to 10%.

Q:What are the qualifications of refractory industry?: 1 business license 2 tax registration certificate 3 organizing institution bar code 4 production permit

Q:Who knows what is the standard of insulation material whose fire proof is level A?: Fire insulation materials of level A is non combustible building materials, and does not have any burning material. Level A1: single inorganic non combustible, no open flame. Level A2: A2 level: composite organic non combustible, that is, composite materials, non flammable, smoke volume should reach the standard.

Q:What types does soft fire prevention materials have?: Soft type fire resistant species. Finishing fire retardant paint, component fire retardant coating, fire-resistant coating for steel structure and othe kinds of fire retardant coating. Flame retardant plastics and its products, textiles, building materials, flame retardant fabric and exterior wall thermal insulation system products, floor materials, such as various types of fire prevention materials;Fire prevention board, fire doors, fire prevention, fire shutter, fire glass window frame, elevator doors, ventilation pipes, fire blocking material, fire smoke exhaust fan and other kinds of artifacts (resistance) fire prevention.

Q:About the use of horseshoe glass kiln refractories: the lower portion of advanced clay brick, the lower portion of magnesia-chrome brick arch - high-purity silica brick; flue - clay brick; breast wall--33 # fused zirconia corundum brick (with shrinkage); fused zirconia bottom --33 # fused zirconia corundum brick (with shrinkage); regenerative chamber- the upper part of sintered magnesia-chrome brick, cooling section 33 # electric?smelting no shrinkage fused zirconia corundum brick; the wall - the melting section 41 # no shrinkage fused zirconia corundum brick (including 41% of zirconium; the lattice- superstructure of high purity magnesia brick, the same below); small stove --33 # fused zirconia corundum brick (with shrinkage). It can be said that it is the maximum configuration, if the funds is limited it can be downshift appropriately.

Q:Physical and chemical indicators of various refractory.: please read"Refractories Standard Series" for refernece, general business standards are higher than the national standard.

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