CN1068319A - Form the method and the mixture of coherent refractory mass on the surface - Google Patents

Form the method and the mixture of coherent refractory mass on the surface Download PDF

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Publication number
CN1068319A
CN1068319A CN92105383A CN92105383A CN1068319A CN 1068319 A CN1068319 A CN 1068319A CN 92105383 A CN92105383 A CN 92105383A CN 92105383 A CN92105383 A CN 92105383A CN 1068319 A CN1068319 A CN 1068319A
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mixture
silicon
particle
refractory
iii
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CN1065847C (en
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J-P·美恩肯斯
L-P·莫泰特
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Hegbo Ltd.
Fosbel Intellectual Ltd
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Glaverbel Belgium SA
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
    • F27D1/1642—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus
    • F27D1/1647—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus the projected materials being partly melted, e.g. by exothermic reactions of metals (Al, Si) with oxygen
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions
    • C04B35/651—Thermite type sintering, e.g. combustion sintering
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
    • C04B41/5035—Silica
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
    • C04B41/5057—Carbides
    • C04B41/5059—Silicon carbide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/87—Ceramics

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Ceramic Products (AREA)
  • Silicon Compounds (AREA)

Abstract

Its surface of silicon compound go up to form in the method for coherent refractory mass simultaneously to surface spray oxygen and mixture, comprising refractory particle and combustible granules, can with spray into oxygen generation thermopositive reaction and discharge capacity heat and under this heat effect, form flame retardant coating.Specifically, mixture comprises flammable silicon grain, the refractory particle of one or more material, this has constituted major part (weight) and another material grains and/or the non-metallic particle of mixture, and its composition can produce said other material that the silicon-dioxide that the silicon grain burning is formed enters lattice when being flame retardant coating formation.

Description

Form the method and the mixture of coherent refractory mass on the surface
The present invention relates to the method that the surface go up to form adheres to refractory masses, wherein spray the mixture of oxygen and refractory particle and combustible granules simultaneously to this surface, carry out thermopositive reaction with oxygen and under combustion heat effect the above-mentioned flame retardant coating of formation.The invention still further relates to that spray mixture and oxygen are gone up in the surface and the used mixture of technology that forms coherent refractory mass comprising refractory particle and combustible granules, can carry out thermopositive reaction with oxygen and form above-mentioned flame retardant coating to emit capacity heat under this combustion heat effect.
If wish to form on the spot on the surface flame retardant coating, then known optional two kinds of main ways.
First kind, be also referred to as " ceramic welding " sometimes, see GB 1330894(Glaverbel) and GB2170191(Glaverbel), wherein in the presence of oxygen, form flame retardant coating to surface spray refractory particle and combustible granules mixture.The composition of combustible granules and granularity can make itself and oxygen generation thermopositive reaction and form refractory oxide simultaneously and discharge capacity heat and make the refractory particle that sprays into melt surface at least, as with aluminium and silicon.Say that suitably known silicon can be described as semi-melting, but because performance be similar to some metal (can a large amount of exothermic oxidation and form refractory oxide), these combustible elements abbreviate the combustible metal thing as.There is spray particle down in the general recommendations high oxygen concentration, as make the main body carrier with technical grade oxygen, the coherent refractory mass of formation is adhered on the spray particle surface.Because excessive temperature can be carried out the ceramic welding reaction, make the softening or fusion in surface so can make pottery penetrate the slag that may exist on the processed refractory body surface.Thereby make between processed surface and the formed flame retardant coating and reach good combination.
Can use these known ceramic welding methods and form refractory product, as special type body, form coating or brickmaking or wall and be particularly useful for repairing or strengthen existing fire resisting construction but more be widely used in, as repairing wall or, carrying out coating as furnace wall or the coke oven of making glass to refractory equipment.
This operation is generally carried out when refractory substrates is heated, and this can repair the refractory surfaces that weathers, and equipment can keep its working temperature substantially and can operate simultaneously in some cases even also.
Second kind of known method that forms flame retardant coating from the teeth outwards is called " flame spraying process ", sprayed this flame comprising the position of flame being guided into flame retardant coating to be formed and with refractory powder, this flame can with gaseous fuel or liquid or even coke send into.Obviously, effectively utilize this flame spraying technical requirements burning perfect combustion and produce hot as far as possible flame and reach high thermal efficiency.The temperature height that the flame temperature that flame spraying reaches does not generally have the ceramic welding technology to reach, the result makes the flame retardant coating of formation also bad, and owing to combination between new refractory masses and refractory substrates surface reaches at low temperatures, so also insecure.In addition, this flame and ceramic welding reaction are compared, and not too are suitable for to penetrate the slag that processed refractory surfaces may exist.
The used mixture of ceramic welding method is formed the refractory materials composition that the repair layer chemical constitution that generally should make acquisition was similar to or approached matrix, and this can guarantee to reach consistency and adhesivity between novel material and its body material.
Wishing to repair some fire resisting construction but we find will go wrong, even and the flame retardant coating chemical constitution be similar to the matrix refractory materials and form also like this.
For example, with main carbon containing silicon particle and metal combustiblematerials particle, will make flame retardant coating always can not show enough and the adhesivity matrix refractory materials when repairing silicon carbide-based refractory surfaces structure as the mixture of aluminium and silicon particle.
Silicon carbide-based refractory materials is used for some metallurgical equipment, in particular for the blast furnace of Iron And Steel Industry or zinc distillation tower.In the operation of equipment process, some part minimum operation temperature of fire resisting construction is quite low, and as about 700 ℃, and the room temperature that may stand capacity in addition changes.Observed flame retardant coating that currently known methods produces in these parts of fire resisting construction also not total amount demonstrate enough adhesivityes with the matrix refractory materials, and under some situation, when especially repairing low prefabricated component of temperature or refractory walls, new flame retardant coating separates fully with the matrix refractory materials and comes off voluntarily in operation of equipment.
If wanting to repair the high-density silica matrix (so calls, in order that making itself and common low-density silicon dioxide refractory materials distinguishes to some extent) some pit kiln fire resisting construction of making also presents similar problem, even can form on the chemical constitution and the similar flame retardant coating of matrix refractory materials, novel material does not always have enough adhesivityes yet and hightails in the stove running even with the matrix refractory masses.
WO90103848(Willet/Willard) disclose a kind of repairing method of furnace lining, wherein inert carrier gas and refractory oxide particle and flammable oxidisability material are sent into flame injection device, and wherein hyperbaric oxygen absorbs and acceleration carrier gas/granular mixture.Willard repairs copper with this method and smelts the refractory slab/brick in converter or repair the silicon carbide tower that connects material, and for example will contain 79% silicon carbide, 16.25% silicon, 4% aluminium and 0.75 magnesium spray by atmospheric oxygen system in the face of bilayer and reach the silicon carbide tower that connects material.
But unfavorable in this method with the magnesium metal powder, be because MAGNESIUM METAL is very volatile at least, the fire-resistant coating of formation is formed extremely unstable.
One of the object of the invention is to address the above problem.
The present invention relates to form on the silicon compound primary surface method that adheres to refractory masses, wherein spray oxygen and mixture simultaneously to this surface, this mixture comprises refractory particle and combustible granules, can with spray into the oxygen thermopositive reaction and discharge capacity heat and under this combustion heat effect, form flame retardant coating, it is characterized in that mixture comprises: (I) flammable silicon grain, (II) most of (weight) mixture is for the refractory particle of one or more material and (silicon-dioxide that III a) can make the silicon grain burning form in the flame retardant coating forming process enters another material additive granules of lattice and/or (III b) can produce the nonmetallic compound additive granules that silicon-dioxide that said another kind makes silicon grain burning formation enters the material of lattice in the flame retardant coating forming process.
The invention still further relates to by on the silicon compound primary surface, form the particles used mixture of method of coherent refractory mass to jet surface mixture and oxygen; comprising refractory particle and combustible granules; can and discharge capacity heat and under this combustion heat effect, form flame retardant coating with oxygen generation thermopositive reaction; it is characterized in that this mixture comprises: (I) flammable silicon grain, (II) most of (weight) mixture is for the refractory particle of one or more material and (silicon-dioxide that III a) can make the silicon grain burning form in the flame retardant coating forming process enters another material additive granules of lattice and/or (III b) can produce the nonmetallic compound additive granules that silicon-dioxide that said another kind makes silicon grain burning formation enters the material of lattice in the flame retardant coating forming process.
This mixture and this method can be used for forming the high quality flame retardant coating, in order to repair the silicon compound primary surface, as the stove fire resisting construction and be used for component are welded together.Obtainable flame retardant coating and matrix refractory materials adhesivity excellence, be repaired in the equipment operation process wherein that the surface repeats that heat condition changes and/or at suitable low temperature, like this when repairing on 600-1000 ℃ of (as 700 ℃) surface, the present invention also is applicable to the surface beyond the said temperature scope fully certainly.
The thermal expansivity that demonstrates on the interface between flame retardant coating of the present invention and the surface is different from mixture and does not contain the swelling property that may reach when the silicon-dioxide that silicon burning is formed enters any material of lattice.We think, the reason of these advantages of the present invention is, adapt to very much at least partially in the fire resisting construction thermal expansivity of the thermal expansivity that has this species diversity and gained flame retardant coating to show on the interface and its application.
Flammable silicon grain can be used as unique combustible granules or with another combustible matl, mix as aluminum particulate.Therefore, mixture preferably also contains flammable aluminum particulate.The oxidation and discharge big calorimetric and and form refractory oxide rapidly of this aluminum particulate itself adopts this feature to help forming the high quality flame retardant coating.
Mixture of the present invention preferably includes the silicon of no more than 15wt%, and this is very important for the unreacted silicon amount that limits in the flame retardant coating that may retain in formation.We have found to exist unreacted silicon to can be detrimental to its quality in the flame retardant coating that forms.
Refractory particle (II) amount is 70wt% at least, and more preferably 75wt% at least is to obtain homogeneous layer.
Additive (III a) and/or (III b) be preferably mixture rest part and can be, preferred 5-15wt% up to the 25wt% of mixture.
Mixture uses the preferred median size of combustible granules (I) less than 50 μ m.
Refractory particle (II) does not preferably comprise particle diameter basically greater than 4mm, more preferably greater than the particle of 2.5mm, in order that form powder jet flow clocklike.
Be used for mixture additive granules (III a) and/or (III b) preferable particle size be less than or equal to 500 μ m.If use too big particle, the danger that can not bring into play useful effect is then arranged, preferably, these grain diameters at least 10 μ m.If use too small-particle, volatile danger in then responding.
Various materials are suitable for the silicon-dioxide that the silicon burning is formed to enter lattice.
(III a) makes the silicon-dioxide that silicon burning forms and the silicon-dioxide that forms and the silicon-dioxide that forms enters lattice to above-mentioned additive materials, preferably forms with magnesium oxide particle to add mixture.
Spray to and deposit this compound in the mixture of refractory surfaces to be repaired and help to guarantee that the flame retardant coating that forms reaches correct thermotolerance.
And, in mixture, to introduce the silicon-dioxide that the burning of at least a portion silicon forms in the flame retardant coating that magnesium oxide can make formation and enter in the forsterite lattice, this helps again to guarantee that the flame retardant coating that forms reaches correct thermotolerance.
The silicon-dioxide that the burning of at least a portion silicon forms in the flame retardant coating if mixture contains that aluminium and magnesium oxide then can form enters in the forsterite structural lattice and/or enters in the spinel structure lattice and/or enter in the cordierite structure lattice.
Exist the cordierite structure lattice to help to guarantee to reach the heat shock resistance of excellence in the refractory materials that forms, and exist forsterite structure and/or spinel structure lattice to produce favourable influence on the other hand the flame retardant coating thermotolerance that forms.
Other oxide compound, (silicon-dioxide that III a) produces the silicon burning enters lattice also to can be used as additive materials as calcium oxide or ferric oxide (II).
Also in addition available or comprise the granular mixture of additive materials (III b) on the other hand; additive materials (III b) is formed can produce the material that the silicon-dioxide that the silicon burning is produced enters lattice when flame retardant coating forms; as available superoxide; as calcium peroxide; nitride; carbide, silicate.
Oxide compound can the chemical combination states of matter be introduced as calcium oxide, as is used calcium oxide, can be wollastonite (CaOSiO 2).
Therefore the present invention can be used in particular for repairing silicon carbide-based or high-density silicon dioxide base refractory materials, is preferred for the ceramic welding method of carrying out with mixture, and most of (weight) is respectively carbide or silicon-dioxide in the used mixture.
Much less, the present invention also can be used for repairing except that above-mentioned and other type silicon compound-base fire resisting construction, as general silica brick and silicon-aluminium brick.
Constituting the most material of mixture can form corresponding to fire resisting construction to be repaired, also can be different substances.Under one situation of back, formation may have the new capability that is different from and is better than fire resisting construction performance to be repaired in theory, improves as wear resistance or resistivity against fire.
The present invention is specified in following examples.
Example 1
Form flame retardant coating on the zinc distillation tower wall, this wall is made of silicon carbide-based brick, refractory particle, but exothermic oxidation and the combustiblematerials particle and the magnesium oxide particle that form refractory oxide sprays to these bricks, and 800 ℃ of mixtures of wall temperature spray into pure oxygen gas flow with the speed of 60kg/h.
Mixture is composed as follows:
SiC 79wt%
Si 8%
Al 5%
MgO 8%
The silicon grain size is less than 45 μ m, specific surface area 2500-8000Cm 2/ g, the aluminum particulate size is less than 45 μ m, specific surface area 3500-6000Cm 2/ g, the silicon-carbide particle size is less than 147mm, and 60wt% is 1-1.47mm, and 20% is 0.5-1mm, and 20% less than 0.125mm, the about 300 μ m of MgO particle mean size, " mean sizes " refers to that the 50wt% particle size is less than this mean sizes.
The wall of Xiu Fuing stands variation of ambient temperature and observes new flame retardant coating and the durable adhesion of carrier like this.
Form the fire-resistant layer structure micrography, found that between new flame retardant coating and matrix flame retardant coating to have excellent continuity, the silicon-dioxide of also observing silicon burning formation enters forsterite, in trichroite and the spinel lattice.
As a comparison, the mixture of oxygen-free magnesium sprays under the same conditions, and this mixture is composed as follows:
SiC 87wt%
Si 12%
Al 1%
The flame retardant coating that forms when observing the operate continuously of zinc distillation tower separates with wall rapidly and comes off into solid block voluntarily.
In this routine improvement project, at the bottom of the pit kiln made from conventional titanium dioxide silica brick of mixture reparation and alumina silicate block, the result is that the repair layer wear resistance is good, and with the wall good adhesion, even obviously also like this during thermal distortion.
Example 2
As the variation scheme of example 1, mixture is composed as follows:
SiC 82wt%
Si 8%
Al 5%
Mg 5%
Wall to be repaired is made by silicon carbide-based brick, 700 ℃ of temperature.
The gained flame retardant coating also with the durable adhesion of wall.
Example 3
Purpose is to form flame retardant coating on the coking furnace wall that high-density titanium dioxide silica brick is made.Though common titanium dioxide silica brick performance density about 1.80, dense brick performance density about 1.89.These bricks just appear on the market of fire resisting material recently, compare with conventional titanium dioxide silica brick, have favourable characteristic, especially with regard to its ventilation property and thermal conductivity.
Reparation operates on about 750 ℃ of walls to be carried out, and has used following mixture:
SiO 280.5wt%
Si 11。1%
Al 1%
Mg 7。4%
The silicon-dioxide particle diameter is less than 2mm, and 30wt% are 1-2mm at most, and is less than 15wt% and is lower than 100 μ m.
The flame retardant coating and the durable adhesion of wall that form.
Under the contrast, spray under the same operation condition similar, but the mixture of oxygen-free magnesium, Yi Yubi separates during the variation heat condition that presents when then flame retardant coating stands furnace operating.
Example 4
Purpose is to form flame retardant coating on the coking furnace wall that silicon compound base refractory materials is made, and considerable change envrionment temperature in the stove, temperature are no more than 900 ℃, repairs and carries out with following mixture on the about 750 ℃ wall of its temperature:
SiO 280wt%
The CaOSiO(wollastonite) 8%
Si 8%
Al 4%
The about 300 μ m of wollastonite median size, metal particle diameter such as example 1, and silicon-dioxide particle diameter such as example 3.

Claims (18)

1, its surface of silicon compound is gone up and is formed the method that adheres to refractory masses, wherein spray oxygen and mixture simultaneously to this surface, this mixture comprises refractory particle and combustible granules, can with spray into the oxygen thermopositive reaction and discharge capacity heat and under this combustion heat effect, form flame retardant coating, it is characterized in that mixture comprises: (I) flammable silicon grain, (II) most of (weight) mixture is for the refractory particle of one or more material and (silicon-dioxide that III a) can make the silicon grain burning form in the flame retardant coating forming process enters another material additive granules of lattice and/or (III b) can produce the nonmetallic compound additive granules that silicon-dioxide that said another kind makes silicon grain burning formation enters the material of lattice in the flame retardant coating forming process.
2, the method for claim 1, (III is a) with in the magnesium oxide particle form introducing mixture to it is characterized in that entering this material of lattice by the said silicon-dioxide that the silicon grain burning is formed.
3, the method for claim 2 is characterized in that at least a portion enters in the forsterite structural lattice in the silicon-dioxide that silicon burning forms.
4, the method for one of claim 1-3 is characterized in that this combustible granules (I) also comprises aluminum particulate.
5, the method for one of claim 2-4 is characterized in that at least a portion enters in the lattice of forsterite structure and/or spinel structure and/or cordierite structure in the silicon-dioxide that silicon burning forms.
6, the method for above arbitrary claim is characterized in that in the particle form introducing mixture of this nonmetallic compound (III b) with superoxide or silicate.
7, the method for one of claim 1-6, this refractory particle (II) that it is characterized in that constituting mixture major part (weight) is a silicon-carbide particle.
8, the method for one of claim 1-6, this refractory particle (II) that it is characterized in that constituting mixture major part (weight) is a silica dioxide granule.
9, the method for above arbitrary claim is characterized in that surface temperature is lower than 1000 ℃.
10; by on the silicon compound primary surface, form the particles used mixture of method of coherent refractory mass to jet surface mixture and oxygen; comprising refractory particle and combustible granules; can and discharge capacity heat and under this combustion heat effect, form flame retardant coating with oxygen generation thermopositive reaction; it is characterized in that this mixture comprises: (I) flammable silicon grain, (II) most of (weight) mixture is for the refractory particle of one or more material and (silicon-dioxide that III a) can make the silicon grain burning form in the flame retardant coating forming process enters another material additive granules of lattice and/or (III b) can produce the nonmetallic compound additive granules that silicon-dioxide that said another kind makes silicon grain burning formation enters the material of lattice in the flame retardant coating forming process.
11, the mixture of claim 10, (III a) as said another material grains to it is characterized in that containing magnesium oxide particle by this mixture.
12, the mixture of claim 10 is characterized in that this mixture contains superoxide or silicate granules as this nonmetallic compound (III b).
13, the mixture of one of claim 10-12 is characterized in that this combustible granules (I) also comprises aluminum particulate.
14, the mixture of one of claim 10-13, this refractory particle (II) that it is characterized in that constituting mixture major part (weight) is a silicon-carbide particle.
15, the mixture of one of claim 10-13, this refractory particle (II) that it is characterized in that constituting mixture major part (weight) is a silica dioxide granule.
16, the mixture of one of claim 10-15, it is characterized in that this additive granules (III a) or (III b) particle diameter be less than or equal to 500 μ m.
17, the mixture of one of claim 10-16, (III a) or (III b) particle diameter at least 10 μ m to it is characterized in that this additive granules.
18, the mixture of one of claim 10-17 is characterized in that wherein the silicon amount is no more than 15wt%.
CN92105383A 1991-07-03 1992-07-02 Process and mixture for forming coherent refractory mass on surface Expired - Fee Related CN1065847C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU87969A LU87969A1 (en) 1991-07-03 1991-07-03 PROCESS AND MIXTURE FOR FORMING A CONSISTENT REFRACTORY MASS ON A SURFACE
LU87969 1991-07-03

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CN1068319A true CN1068319A (en) 1993-01-27
CN1065847C CN1065847C (en) 2001-05-16

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KR101788275B1 (en) 2011-08-04 2017-10-19 주식회사 인텍 Ceramic welding composition
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KR100232797B1 (en) 1999-12-01
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