CN102249707B - Composite refractory material - Google Patents
Composite refractory material Download PDFInfo
- Publication number
- CN102249707B CN102249707B CN201110120222.3A CN201110120222A CN102249707B CN 102249707 B CN102249707 B CN 102249707B CN 201110120222 A CN201110120222 A CN 201110120222A CN 102249707 B CN102249707 B CN 102249707B
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- CN
- China
- Prior art keywords
- thermofin
- raw material
- flame retardant
- retardant coating
- composite refractory
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Abstract
The invention provides composite refractory material, which is formed by two layers and the adhesive force and the corrosion resistance of the material between the two layers are improved. The two layers are a refractory layer with a best corrosion resistance at 1300 DEG C and a heat insulation layer capable of reducing the heat loss. The composite refractory material (1) is formed by the integration of the refractory layer (2) and the heat insulation layer (4) by pre-casting technique or by the adhering with an adhesive. The refractory layer (2) is made of basic refractory material and the heat insulation layer (4) is formed by indefinite material of low thermal conductivity at 0.2-1 w/m*k. The thermal expansion coefficient difference of the two layers is 0 to 6*10-6/K.
Description
Technical field
The present invention relates to the composite refractory material that a kind of furnace lining at rotary oven etc. uses.
Background technology
The rotary oven used in cement factory or pulp factories has the structure being lined with refractory walls in the inside of cylinder shell.In the past, as the technology of the thermosteresis of minimizing rotary oven, adopt with the following method: 2 Rotating fields liner being made the thermofin of flame retardant coating and low heat conductivity in the refractory walls of enclosure interior.
When have employed 2 such Rotating fields, in rotary oven, owing to being moved vertically in housing by burned material, therefore easily in the direction in which stress is produced for backup lining brick, when stove runs, have because of from the problem being made two-layer stripping by burned material to the frictional force of the 2 Rotating fields portions generation effect of refractory walls, flame retardant coating comes off.As the technology solving this problem, the application applicant discloses the technology (patent documentation 1) two-layer interface being made waveform morphology.In addition, about its manufacture method, disclose following precast technology: first, the casting forming material of pouring heat insulating material in the molding box corresponding to the peripheral shape of refractory body, waveform is applied in the above with the pressing mold of waveform shape, after insulation material layer to a certain degree solidifies, the casting forming material of pouring fireproof material, carries out the demoulding after making it solidify thereon.In addition, record in patent documentation 1: for flame retardant coating and thermofin being carried out at the same pressure for the situation of the tile product of press molding simultaneously, the material that Bulk Specific Gravity is very not identical can not be used as materials at two layers, and relative to this, according to precast technology, the Bulk Specific Gravity difference of materials at two layers can be made to be greater than tile product, therefore, the thermal conductivity of thermofin reduces, and can obtain good energy-saving effect.
But, chemically the viewpoint of composition is seen, the flame retardant coating of patent documentation 1 and thermofin are all be made up of (two-layer is neutral refractory or two-layer for alkaline refractory body) same combination, and relative to this, time under the hot environment of rotary oven such as more than 1300 DEG C by use, from the view point of erosion resistance, flame retardant coating is preferably by alkaline refractory body (such as MgO, MgOAl
2o
3raw material) form, and thermofin is from the view point of energy-conservation, wishes the low heat conductivity for below 1W/mk, preferably primarily of acid or neutral raw (such as Al
2o
3, SiO
2raw material) form.
Because the thermal expansivity that has an impact to the bond strength of flame retardant coating and thermofin is greatly different because of alkaline refractory body and acid or neutral raw, therefore easily chap, in addition, be made up of flame retardant coating alkaline refractory body, be made up of the situation of thermofin acid or neutral raw, at solid burning (the baked I of alkaline refractory body
under hot conditions め), can dissolve with on the interface of acid or neutral raw, be burnt till by high temperature and make two-layer integration be very difficult technically.
Relative to this, although there will be a known the technology attaching low heat conductivity lagging material (so-called geta formula brick (ゲ タ ば I レ Application ガ)) between the flame retardant coating be made up of alkaline refractory body and the thermofin be made up of acid or neutral raw, but problem is, for the joint by geta formula brick, the clinging power of two interlayers is more weak, can not obtain the clinging power required by composite refractory material used as the furnace lining material of rotary oven.
Patent documentation 1: Japanese Patent Publication 6-103153 publication
Summary of the invention
The object of the invention is to solve the problem, provide a kind of composite refractory material, it has following 2 layers: flame retardant coating when using under the hot environment more than 1300 DEG C with optimum corrosion resistance; With thermofin best in reduction thermosteresis, and achieve the raising of the clinging power of this 2 interlayer and the raising of erosion resistance.
Composite refractory material of the present invention for solving the problem is by precast technology or by being made the composite refractory material of flame retardant coating and thermofin integration by the attaching of bonding raw material, it is characterized in that, this flame retardant coating is made up of alkaline refractory body, this thermofin is made up of the indefinite form material of the low heat conductivity with 0.2 ~ 1W/mk, and the coefficient of thermal expansion differences of flame retardant coating and thermofin is 0 ~ 6 × 10
-6/ K.
Composite refractory material according to scheme 1, the feature of the invention described in scheme 2 is: thermofin contains Al
2o
3, SiO
2with any one in MgO as main constituent.
Composite refractory material according to scheme 1, the feature of the invention described in scheme 3 is: containing one of hollow raw material and Porous raw material or both sides in the manufacture raw material of thermofin, and it adds up to amount to be manufacture 10 ~ 60 quality % scopes in raw material.
Composite refractory material according to scheme 1 or 2, the feature of the invention described in scheme 4 is: containing fibrous raw material in the manufacture raw material of thermofin, and it adds up to amount to be manufacture 1 ~ 20 quality % scope in raw material.
Composite refractory material according to scheme 1, the feature of the invention described in scheme 5 is: the inter coat between flame retardant coating and thermofin with 0.1 ~ 2mm, and this inter coat contains Al
2o
3, MgOAl
2o
3, ZrO
2, SiO
2in any one as main constituent.
Composite refractory material according to scheme 1, the feature of the invention described in scheme 6 is: the interface of flame retardant coating and thermofin is concaveconvex shape.
Invention effect
In composite refractory material involved in the present invention, by having forming of the flame retardant coating that is made up of the alkaline refractory body that erosion resistance is superior, optimum corrosion resistance when using under achieving the hot environment more than 1300 DEG C, by forming of the thermofin that is made up of the indefinite form material of the low heat conductivity with 0.2 ~ 1W/mk, achieve the best thermofin that thermosteresis reduces.
Because alkaline refractory body is greatly different from thermal expansivity that is acid or neutral raw, therefore, in the prior art, clinging power between the flame retardant coating be made up of alkaline refractory body and the thermofin these 2 layers formed primarily of acid or neutral raw is more weak, the refractory walls used as the furnace lining material of rotary oven has the problem that can not obtain satisfied clinging power, but in the present invention, by thermofin being made the formation of indefinite form material, flame retardant coating and thermofin integration can not be made by burning till, be specially, by precast technology or by being made flame retardant coating and thermofin integration by the attaching of bonding raw material, be 0 ~ 6 × 10 by the coefficient of thermal expansion differences of the formation and flame retardant coating and thermofin that there is waveform interface between these 2 layers
-6the formation of/K, can realize the clinging power between these 2 layers.
Like this, by not making flame retardant coating and thermofin integration by burning till, be specially, by precast technology or by being made flame retardant coating and thermofin integration by the attaching of bonding raw material, due to without the need to burning till cost, therefore, have and can manufacture more at an easy rate than burnt brick, and the advantage of the lagging material of low-thermal conductivity can be used as.
Thermofin is preferably with Al
2o
3, SiO
2, any one in MgO be constituent, with total amount, in the scope of 10 ~ 60 quality %, adds one of hollow raw material and Porous raw material or both sides and the thermofin formed.In addition, also can with this hollow raw material or Porous raw material at least together with any one or individually, in the scope of 1 ~ 20 quality %, add fibrous raw material and formed.Thereby, it is possible to form the thermofin with the low heat conductivity of 0.2 ~ 1W/mk.In addition, by being formed with Al between flame retardant coating and thermofin
2o
3, MgOAl
2o
3, ZrO
2, SiO
2in any one be the inter coat of 0.1 ~ 2mm of constituent, the clinging power further increasing erosion resistance and each interlayer can be realized.And then, by the interface of flame retardant coating and thermofin is made concaveconvex shape, the connectivity of 2 interlayers can be improved further.
Accompanying drawing explanation
Fig. 1 is the side-view of the composite refractory material of embodiment.
Fig. 2 is the front view of the composite refractory material of liner Fig. 1 on rotary oven.
Fig. 3 is the side-view of the interface of flame retardant coating and thermofin.
Fig. 4 is the side-view of the interface of flame retardant coating and thermofin.
Nomenclature
1 composite refractory material;
2 flame retardant coatings;
3 inter coats;
4 thermofins;
5 housings;
11 fronts
Embodiment
Below show preferred embodiment of the present invention.
In Fig. 1 ~ Fig. 2,1 represents composite refractory material, and 2 represent flame retardant coating, and 3 represent inter coat, and 4 represent thermofin, the cylinder shell of 5 expression rotary ovens.As shown in Figure 1, the composite refractory material 1 of present embodiment has roughly rectangular blocks shape, be made up of following three-decker by inside the stove of burned material movement: flame retardant coating 2, thermofin 4 in side, furnace wall, at flame retardant coating 2 and the centre of thermofin 4, there is inter coat.Flame retardant coating 2 is made up of alkaline refractory body, and thermofin 4 is with acid or neutral raw for constituent, and is made up of the indefinite form material of the low heat conductivity with 0.2 ~ 1W/mk.
As mentioned above, flame retardant coating is being formed by alkaline refractory body, the situation of thermofin is made up of acid or neutral raw, under the hot conditions needed for the solid burning of alkaline refractory body, can dissolve with on the interface of acid or neutral raw, being burnt till by high temperature makes two-layer integration be very difficult technically, and then, there will be a known the technology being pasted with low heat conductivity lagging material (so-called geta formula brick) between the flame retardant coating be made up of alkaline refractory body and the thermofin be made up of acid or neutral raw, but the bounding force such structure being had to two interlayers is more weak, can not get the problem of the clinging power required by composite refractory material used as the furnace lining material of rotary oven.In contrast, in the present invention, by except adopting the forming of the thermofin integration that do not make the flame retardant coating that is made up of alkaline refractory body by burning till and be made up of acid or neutral raw, the coefficient of thermal expansion differences of flame retardant coating and thermofin is made to be 0 ~ 6 × 10
-6/ K, and adopt thermofin to be made up of the indefinite form material of the low heat conductivity with 0.2 ~ 1W/mk, solve the problems referred to above, for there is when using under can realizing that there is the hot environment more than 1300 DEG C the flame retardant coating of optimum corrosion resistance and reducing thermofin these 2 layers best in thermosteresis, and achieve the composite refractory material of the raising of the clinging power of this 2 interlayer and the raising of erosion resistance.In addition, in the present invention, " the not integration by burning till " not only refers to by the integration of precast technology, and comprise with bonding raw material preshaped separately flame retardant coating and thermofin being attached and make its integration, this precast technology is, first the casting forming material of pouring heat insulating material in the molding box corresponding to the peripheral shape of refractory body, waveform is applied in the above with the pressing mold of waveform shape, after insulation material layer to a certain degree solidifies, the casting forming material of pouring fireproof material again, carries out the demoulding after making it solidify thereon.As this bonding raw material, can use such as with Al
2o
3, MgOAl
2o
3, ZrO
2, SiO
2in any one be the raw material of constituent.
And then, also by the interface of each interlayer being made the formation of concaveconvex shape in the present invention, achieve the raising of each interlaminar adhesion.When making the waveform shape as Fig. 1, if the height of ripple is high, then stress is concentrated in its base portion, and interlayer is likely peeled off, and therefore, the height of preferred ripple is below 20mm.In addition, if make the half wave type shown in Fig. 3, make it be highly 10 ~ 20mm, then splitting can not occur, excellent clinging power can be obtained.In addition, square projection as shown in Figure 4 also can be formed, but this occasion, in order to avoid stress concentration, preference is as carried out chamfer machining precedent as 45 ° to base portion.
As shown in Figure 1, the front 11 of refractory body 1 is made into the shape of approximate isosceles trapezoid.
Flame retardant coating
Any one in the alkaline indefinite form material that flame retardant coating 2 can be pressurized construction or casting and constructing or basic brick, the wave head portion of the interface of waveform can be housing direction, also can be axially.
(thermofin)
Thermofin 4 is with Al
2o
3, SiO
2, at least one in MgO be the indefinite form material of constituent.In order to thermofin 4 being become the low heat conductivity of 0.2 ~ 1W/mk, preferably by total amount, be that the scope of 10 ~ 60 quality % adds one of hollow raw material and Porous raw material or both sides in whole raw material, or with the scope being 1 ~ 20 quality % in whole raw material together with hollow raw material and Porous raw material or add fibrous raw material individually to be formed.At this, such as mullite hollow spheres (mullite bubble), grog hollow ball (chamotte bubble) etc. can be used as hollow raw material, as Porous raw material, such as light weight brick fragment, perlite etc. can be used.In addition, as fibrous raw material, such as sepiolite etc. can be used.If addition is lower than above-mentioned scope, then become the low heat conductivity being difficult to guarantee 0.2 ~ 1W/mk, otherwise if too much, then intensity can reduce.
Middle layer
Formed preferably by between flame retardant coating 2 and thermofin 4 with Al
2o
3, MgOAl
2o
3, ZrO
2, SiO
2in at least one be the inter coat 3 of constituent, relax the thermal expansivity between thermofin 4 and flame retardant coating 2, thus realize the further raising of the clinging power of erosion resistance and each interlayer.The thickness of inter coat 3 is preferably 0.1 ~ 2mm.
Embodiment
Table 1
The meaning that the mark of value column represents is as follows:
◎: excellent
Zero: good
△: qualified
×: defective
Embodiment 1 ~ 10,12 ~ 15, comparative example 1 ~ 4
In the molding box corresponding to the peripheral shape of flame retardant coating 2, pour into a mould the heat insulation casting forming material of each composition shown in table 1, form waveform in the above with the pressing mold of waveform shape.After insulation material layer to a certain degree solidifies, inter coat shown in table 1 is set thereon, after inter coat to a certain degree solidifies, the fire-resistant casting forming material of each composition shown in further cast table 1, the demoulding is carried out after making it solidify, by can't help the integration of burning till, making the composite fire matter sample of the dimensions that JISR2103 specifies, following assessment item is evaluated.Table 1 shows the chemical composition of evaluation about following project and each layer, and the physicals of thermofin (thermal expansion difference of the thermal conductivity of thermofin, flame retardant coating and thermofin).In addition, in Table 1, the remainder of the remainder of flame retardant coating, the remainder of thermofin and inter coat is binder constituents.In addition, each composition consisted of shown in table 1 of each casting forming material.
Embodiment 11
Respectively the flame retardant coating be shaped and thermofin bonding raw material are attached in advance, by can't help the integration of burning till, making the composite fire matter sample of the dimensions that JISR2103 specifies, following assessment item is evaluated.In table 1, except about except the evaluation of following items and the chemical constitution of each layer, also show the physical property (thermal expansion difference of the thermal conductivity of thermofin, flame retardant coating and thermofin) of thermofin.As this bonding raw material, employ with Al
2o
3, MgOAl
2o
3, ZrO
2, SiO
2in any one be the raw material of constituent.In addition, in embodiment 11, although flame retardant coating employs the brick be shaped by burning till, thermofin employs the castable thing be shaped by not burning till, but be not particularly limited method flame retardant coating and thermofin formed respectively in advance, can be all by the layer burnt till, also can be all by the non-layer burnt till.
Plasticity is evaluated
In casting forming material, if poor fluidity, then can not form in a conventional manner, such as, " be full of cracks " problem can occur.Therefore, in each casting forming material, add the construction moisture of regulation, in cast progressive die, confirmed by the outward appearance after the mould of pulling down the demoulding thereafter, have rated the plasticity of each layer.In addition, the plasticity evaluation in embodiment 11 evaluates the plasticity of thermofin.
Intensity evaluation
Cut out the thermofin of the composite fire matter sample of integration, have rated intensity based on JISR2553.
Fire-resistant/heat insulation cohesiveness
Cut out the composite fire matter sample of integration fire-resistant/binding part of thermofin, have rated intensity based on JISR2553.
Resistance to reactivity
Cut out the composite fire matter sample of integration fire-resistant/binding part of thermofin, have rated the reaction condition of binding part after burning till at 1300 DEG C.
Cut out the thermofin of the composite fire matter sample of integration, carry out corrosion test based on JISR2214 and made evaluation.
Embodiment 1 ~ 11
Investigation about inter coat:
Embodiment 1, embodiment 2, embodiment 5, embodiment 8, embodiment 10 all do not have inter coat, and other embodiment has inter coat.Relatively confirming according to them: by having inter coat, fire-resistant/heat insulation cohesiveness and resistance to reactive raising effect.
Embodiment 1 ~ 11
Investigation about the addition of hollow raw material and Porous raw material or fibrous raw material:
Embodiment 2 is the examples that with the addition of hollow raw material and Porous raw material by upper limit amount, from the viewpoint of plasticity and intensity, confirms the embodiment being inferior to other.
Comparative example 1, comparative example 3
Comparative example 1 is the example that the addition of hollow raw material, Porous raw material and fibrous raw material is few, and comparative example 3 is the examples all not adding hollow raw material, Porous raw material and fibrous raw material.This situation, (" coefficient of thermal expansion differences of flame retardant coating and thermofin is 0 ~ 6 × 10 can not to obtain the coefficient of thermal expansion differences of thermofin of the present invention
-6/ K ") and heat conductivity (" low heat conductivity of 0.2 ~ 1W/mk ").As comparative example 3, if coefficient of thermal expansion differences is more than 6 × 10
-6/ K, then can not obtain fire-resistant/heat insulation cohesiveness fully.
Comparative example 2
For coefficient of thermal expansion differences is more than 6 × 10
-6the example of/K, can not obtain fire-resistant/heat insulation cohesiveness fully.
Comparative example 4
For the heat conductivity of thermofin is more than the example of 1W/mk, fire-resistant/heat insulation cohesiveness fully can not be obtained.
Embodiment 12
For excessively with the addition of the example of hollow raw material, Porous raw material, although durable, fire-resistant/heat insulation cohesiveness low-level can be in use.
Embodiment 13, embodiment 14
For the thickness of inter coat is more than the example of 2mm, although durable, fire-resistant/heat insulation cohesiveness low-level can be in use.
Embodiment 15
For excessively with the addition of the example of fibrous raw material, although durable, fire-resistant/heat insulation cohesiveness low-level can be in use.
Table 1
Claims (5)
1. a composite refractory material, for by precast technology or by be made the composite refractory material of flame retardant coating and thermofin integration by the attaching of bonding raw material, it is characterized in that, described flame retardant coating is made up of alkaline refractory body, described thermofin with acid or neutral raw for constituent, and be made up of the indefinite form material of the low heat conductivity with 0.2 ~ 1W/mk
The coefficient of thermal expansion differences of flame retardant coating and thermofin is 0 ~ 6 × 10
-6/ K;
Between flame retardant coating and thermofin, have the inter coat of 0.1 ~ 2mm, this inter coat contains Al
2o
3, MgOAl
2o
3, ZrO
2and SiO
2in any one as main constituent.
2. composite refractory material according to claim 1, is characterized in that, thermofin contains Al
2o
3, SiO
2with any one in MgO as main constituent.
3. composite refractory material according to claim 1, is characterized in that, containing one of hollow raw material and Porous raw material or both sides in the manufacture raw material of thermofin, it adds up to amount to be manufacture 10 ~ 60 quality % scopes in raw material.
4. composite refractory material according to claim 1 and 2, is characterized in that, containing fibrous raw material in the manufacture raw material of thermofin, it adds up to amount to be manufacture 1 ~ 20 quality % scope in raw material.
5. composite refractory material according to claim 1, is characterized in that, the interface of flame retardant coating and thermofin is concaveconvex shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-106890 | 2010-05-07 | ||
| JP2010106890 | 2010-05-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102249707A CN102249707A (en) | 2011-11-23 |
| CN102249707B true CN102249707B (en) | 2015-04-08 |
Family
ID=44977328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110120222.3A Expired - Fee Related CN102249707B (en) | 2010-05-07 | 2011-05-09 | Composite refractory material |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5553793B2 (en) |
| KR (1) | KR101758926B1 (en) |
| CN (1) | CN102249707B (en) |
| TW (1) | TWI527698B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445081B (en) * | 2012-01-04 | 2016-03-23 | 洛阳洛华窑业有限公司 | A kind of high-strength energy-saving combined furnace wall |
| KR101601955B1 (en) * | 2014-08-26 | 2016-03-09 | (주)케이알 | Inner fireproof material for furnace |
| JP6482957B2 (en) * | 2015-06-04 | 2019-03-13 | 日本碍子株式会社 | Compound refractory |
| WO2019078563A1 (en) * | 2017-10-17 | 2019-04-25 | 엘지전자 주식회사 | Sagger for firing lithium secondary battery positive electrode active material and method for manufacturing same |
| CN113773111A (en) * | 2021-08-18 | 2021-12-10 | 洛阳九久耐磨材料制造有限公司 | Temperature-resistant corrosion-resistant composite coating for surface of steel casting |
| CN117399598A (en) * | 2023-12-14 | 2024-01-16 | 钢铁研究总院有限公司 | Method for improving solidification quality of large-size vacuum induction ingot |
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| JPH06103153B2 (en) * | 1989-05-16 | 1994-12-14 | 日本碍子株式会社 | Refractory for rotary kiln |
| JP2008007341A (en) * | 2006-06-27 | 2008-01-17 | Nippon Steel Materials Co Ltd | Low thermal expansion ceramic joined body and method for manufacturing the same |
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| CN201407902Y (en) * | 2009-05-18 | 2010-02-17 | 北京京诚凤凰工业炉工程技术有限公司 | Complex fiber furnace lining and annular furnace with same |
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| JP3009816B2 (en) * | 1993-12-27 | 2000-02-14 | 黒崎窯業株式会社 | Oxidation-resistant non-oxide spray material and its mixture |
| JPH09301779A (en) * | 1996-05-16 | 1997-11-25 | Toshiba Ceramics Co Ltd | Castable refractory, application method therefor and industrial furnace using the same |
| JPH10132262A (en) * | 1996-10-29 | 1998-05-22 | Shinagawa Refract Co Ltd | Lining structure for incineration ash melting furnace |
| JPH10194872A (en) * | 1997-01-08 | 1998-07-28 | Takasago Ind Co Ltd | Refractory brick and continuous furnace formed by using the refractory brick |
| JP3659759B2 (en) * | 1997-02-26 | 2005-06-15 | 日本碍子株式会社 | Molten metal filtration storage tank and its lining brick |
| JP3616239B2 (en) * | 1997-10-23 | 2005-02-02 | 東芝セラミックス株式会社 | Cement kiln panel and its construction method |
| JPH11190593A (en) * | 1997-12-26 | 1999-07-13 | Kyocera Corp | Furnace material for high-temperature furnace |
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| JP3992978B2 (en) * | 2001-12-26 | 2007-10-17 | ニチアス株式会社 | Heat-resistant structure |
| JP4373691B2 (en) * | 2003-03-18 | 2009-11-25 | ニチアス株式会社 | Heat-resistant structure for firing electronic parts and method for producing the same |
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| JP2005126732A (en) * | 2003-10-21 | 2005-05-19 | Sumitomo Metal Ind Ltd | Smelting-reduction method for material containing metallic oxide, and smelting-reduction apparatus |
| JP2005336588A (en) * | 2004-05-31 | 2005-12-08 | Jfe Steel Kk | Hot iron runner and forming method therefor |
| JP2008247720A (en) * | 2007-03-30 | 2008-10-16 | Nichias Corp | Monolithic refractory forming material and monolithic refractory formed body |
-
2011
- 2011-04-15 KR KR1020110035324A patent/KR101758926B1/en active IP Right Grant
- 2011-04-19 TW TW100113486A patent/TWI527698B/en not_active IP Right Cessation
- 2011-04-27 JP JP2011099453A patent/JP5553793B2/en not_active Expired - Fee Related
- 2011-05-09 CN CN201110120222.3A patent/CN102249707B/en not_active Expired - Fee Related
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| JPH06103153B2 (en) * | 1989-05-16 | 1994-12-14 | 日本碍子株式会社 | Refractory for rotary kiln |
| JP2008007341A (en) * | 2006-06-27 | 2008-01-17 | Nippon Steel Materials Co Ltd | Low thermal expansion ceramic joined body and method for manufacturing the same |
| CN101412629A (en) * | 2008-08-29 | 2009-04-22 | 瑞泰科技股份有限公司 | Periclase-magnesium aluminate spinel composite refractory brick and technique for producing the same |
| CN201407902Y (en) * | 2009-05-18 | 2010-02-17 | 北京京诚凤凰工业炉工程技术有限公司 | Complex fiber furnace lining and annular furnace with same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101758926B1 (en) | 2017-07-17 |
| CN102249707A (en) | 2011-11-23 |
| TW201139143A (en) | 2011-11-16 |
| JP2011252696A (en) | 2011-12-15 |
| KR20110123656A (en) | 2011-11-15 |
| TWI527698B (en) | 2016-04-01 |
| JP5553793B2 (en) | 2014-07-16 |
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