CN102107547B - High-temperature flame proofing material and high-temperature flame proofing method - Google Patents
High-temperature flame proofing material and high-temperature flame proofing method Download PDFInfo
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- CN102107547B CN102107547B CN200910243434.3A CN200910243434A CN102107547B CN 102107547 B CN102107547 B CN 102107547B CN 200910243434 A CN200910243434 A CN 200910243434A CN 102107547 B CN102107547 B CN 102107547B
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Abstract
The invention relates to high-temperature flame proofing material and a high-temperature flame proofing method. The high-temperature flame proofing material at least comprises a ceramic chip and a support body, wherein, the ceramic chip is connected with the support body through a fastening piece; and the support body is used for combining the high-temperature flame proofing material with the surface needing protection. The high-temperature flame proofing method adopts the scheme that the high-temperature flame proofing material is fixed on the surface needing protection so as to achieve high-temperature flame protection. The high-temperature flame proofing material is not made of ablative material, belongs to an non-ablative composite material protection system, has the chracteristics of no ablation, reusability and the like, is convenient to construct, and is simple and convenient to maintain. In addition, the connection reliability under the high-temperature condition can be ensured by adopting the method combining mechanical joint with bonding, and the stability of a high-temperature flame protection system can be provided. The high-temperature flame proofing material is suitable for being used at a high temperature ranging from 500 to 1500 DEG C.
Description
Technical field
The present invention relates to a kind of thermal-flame protective materials, relate in particular to a kind of non-ablative thermal-flame protective materials.The invention still further relates to a kind of means of defence of thermal-flame, belong to heat insulation material field.
Background technology
At present, what thermal-flame protective materials majority adopted is ablative material, what rely on is that material thermal cracking heat absorption loss obtains protection effect, cause material after experience thermal-flame burns, damaging significantly appears in capital, need to carry out coating construction again, this is difficult to accept for the environment that large area is used and time conditions is had relatively high expectations.Chinese patent application 01822233.1 discloses a kind of compound thermal protective system and method, its be by ablator when being exposed to hot conditions, the mode that forms perforate matrix realizes the protection to matrix.But the ablator here, through after a high temperature, will lose protective effect, need to change, therefore, cannot use for a long time, also cannot recycle, use cost is higher.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of thermal-flame protective materials, do not need to adopt ablative material, combination by many levels obtains a kind of non-ablative composite material protection system with multi-layer compound structure, has without features such as ablation, reusable, easy construction, easy maintenances.
The present invention also aims to provide the method that adopts above-mentioned thermal-flame protective materials to carry out thermal-flame protection, realize stable, protection reliably to thermal-flame.
For achieving the above object, first the present invention provides a kind of thermal-flame protective materials, wherein, this thermal-flame protective materials is at least comprised of potsherd and supporter, this potsherd is connected by securing member with supporter, and supporter is for being attached to this thermal-flame protective materials on the surface that needs protection.Usually, this thermal-flame protective materials at least comprises one deck potsherd and a supporter, and this supporter also can have composite construction.
Above-mentioned thermal-flame protective materials provided by the invention mainly utilizes the calcination of potsherd opposing thermal-flame, according to the difference of the flame temperature of required protection, can select different ceramic materials to prepare above-mentioned potsherd.Thermal-flame protective materials provided by the invention is generally the protection for the thermal-flame of temperature 500-1500 ℃, preferably, potsherd of the present invention is made by Continuous Fiber Reinforced Ceramic Matrix Composites, such as making (wherein by methods such as impregnation sintering technique, impregnating cracking technologies, the quartzy general dipping-sintering process preparation that adopts of fiber reinforcement, other material mainly adopts the preparation of dipping-cracking technology); More preferably, above-mentioned Continuous Fiber Reinforced Ceramic Matrix Composites comprises that two-dimentional quartz textile strengthens quartzy, three-dimensional quartz fabric and strengthens quartzy, Two-dimensional Carbon fabric and strengthen quartzy, three-dimensional carbon fabric and strengthen quartzy, Two-dimensional Carbon fabric and strengthen silicon carbide ceramics and three-dimensional carbon fabric and strengthen one or more the combination in silicon carbide ceramics etc.
For the impact of avoiding supporter to be in use subject to high temperature causes the unstable of thermal-flame protective materials integral body, preferably, thermal-flame protective materials provided by the invention can also have a compound heat-insulation layer, and this compound heat-insulation layer is arranged between potsherd and supporter.In this thermal-flame protective materials, can make securing member successively through potsherd, compound heat-insulation layer and supporter, three is connected together.
In thermal-flame protective materials provided by the invention, preferably, compound heat-insulation layer is made by laminated by inorfil cloth and metal forming; More preferably, compound heat-insulation layer is made by laminated by spaced multilayer inorfil cloth and multilayer metal foil.Above-mentioned laminated referring to first carried out stacked setting as requested by inorfil cloth and metal forming, then utilizes inorfil line that each layer of inorfil cloth and metal forming are stitched together.Laminated other feasible modes that also can adopt here.
In thermal-flame protective materials provided by the invention, preferably, the inorfil cloth adopting in compound heat-insulation layer can be High silica glass cloth and/or Lay mineral wool cloth etc. not.
In thermal-flame protective materials provided by the invention, preferably, the metal forming adopting in compound heat-insulation layer can be nickel foil and/or stainless steel foil etc.
In thermal-flame protective materials provided by the invention, thermal-flame protective materials can be attached to and need the surperficial supporter of protection all can use.The combination here can realize by modes such as mechanical connection, bondings.And this supporter can be arbitrary shape, such as support shape, lamellar etc.
In thermal-flame protective materials provided by the invention, the securing member adopting can be various conventional securing members, such as screw, fastening bolt etc.Preferably, above-mentioned securing member is made by heat resisting steel; More preferably, above-mentioned heat resisting steel is a kind of in 3Cr18 steel, Cr18Mn12 steel and 12CrMoV steel etc.In potsherd, supporter, compound heat-insulation layer etc., corresponding hole can be set, so that securing member passes and is fixedly connected with.When adopting screw, bolt as securing member, the hole on supporter can be screw, the screw thread that on its inwall, setting is meshed with screw or bolt etc., and hole on potsherd and compound heat-insulation layer etc. can be not have threaded unthreaded hole.
In thermal-flame protective materials provided by the invention, preferably, the supporter adopting is a rigid support sheet.More preferably, this rigid support sheet is provided with for the fixing hole of securing member, and, near this hole, be provided with arc microflute.This arc microflute can be arranged between above-mentioned hole and the corner of rigid support sheet, can form to hole the state of semi-surrounding, and its shape can be semicircle, fan-shaped, arc that have certain central angle etc.Under use state, this arc microflute can separate heat and circumferential corner transmit from hole, intercepts from thermal-flame, heat by conduction by securing member and spreads to rigid support sheet corner, thereby improve the reliability of fixing (for example bonding).
In thermal-flame protective materials provided by the invention, preferably, rigid support sheet can be formed from steel; More preferably, above-mentioned steel is selected Cr12 steel and/or Cr13 steel etc.
Above-mentioned thermal-flame protective materials provided by the invention can be made various applicable shapes as required, and preferably, above-mentioned thermal-flame protective materials is lamellar structure, and thermal-flame protective materials provided by the invention is one deck sheet-like article in other words.These lamellar goods can be, but not limited to paste by binding material the surface of needs protection, therefore, also can be referred to as SMD thermal-flame protective materials or thermal-flame protection paster.
The present invention also provides a kind of thermal-flame means of defence, the method is to adopt above-mentioned thermal-flame protective materials to be attached to need the surface of protection to carry out thermal-flame protection, wherein, thermal-flame protective materials is by its supporter and the surface conjunction that needs protection.
In above-mentioned thermal-flame means of defence provided by the invention, the combination of above-mentioned thermal-flame protective materials can adopt the fixing mode of machinery, also can adopt the mode of bonding to carry out.When adopt binding material carry out in conjunction with time, preferably, can complete by following steps:
The supporter of thermal-flame protective materials is pasted to the surface of needs protection by binding material;
Utilize encapsulant to fill the gap between thermal-flame protective materials;
Carrying out above normal temperature cure in 48 hours processes.
In above-mentioned thermal-flame means of defence, need the surface of protection to refer to the surface that need to carry out thermal-flame protection, when carrying out in conjunction with (fixing), the potsherd of thermal-flame protective materials is towards a side of thermal-flame, the surface that supporter protects towards needs, and together with this surface conjunction.Carrying out in conjunction with (fixing) before, the processing such as the surperficial area that can protect as required, shape obtain the moderate thermal-flame protective materials of thickness.When making the thermal-flame protective materials of lamellar, preferably, the thickness general control of potsherd is 1.5-3.0mm, and the thickness general control of compound heat-insulation layer is 2.0-4.0mm, and the thickness of supporter (rigid support sheet) is at least 4.0mm.(at least want to meet the fixedly requirement that screw hole depth can meet securing member meeting thermal protective performance requirement (thickness can bear greatly longer time high temperature) and mechanical connection condition, needed size when meeting bolt, screw etc. and be screwed into) under prerequisite, should make thermal-flame protective materials thin as far as possible, to reduce volume, weight.In conjunction with (fixing) before, can carry out surface coarsening processing to the surface of needs protection and the surface of supporter (rigid support sheet), such as sandblast, polishing etc., to obtain good surface roughness.
In above-mentioned thermal-flame means of defence provided by the invention, the binding material adopting can be conventional in this area can resistant to elevated temperatures adhesive, for example, heatproof epoxyn; Preferably, this heatproof epoxyn comprises the high-strength organic structure glue of HT160 type of Huitian Glue Ind Co., Ltd., Hubei's production, the combination of one or more in the DG-2 type structure glue that the high-strength organic structure Jiao He morning twilight of the TS811 type chemical research institute of Beijing Tianshan New Materials and Technology Co., Ltd.'s production produces etc.
In above-mentioned thermal-flame means of defence provided by the invention, encapsulant is for the gap (gap that comprises edge) between filled high-temperature flame shield material, to reach better bond effect, preferably, above-mentioned encapsulant is industrial healant, the combination of one or more in the TS737 type that the DB737 type of producing such as Wuhan Shuan Jian encapsulant company, DB757 type industry healant and Beijing Tianshan New Materials and Technology Co., Ltd. produce, TS757 type high-temperature repairing agent etc.
Thermal-flame protective materials provided by the invention belongs to non-ablative compound thermal protective materials system, having solved in prior art relies on material thermal cracking heat absorption loss to obtain protection effect, cause material after experience thermal-flame burns, occur significantly damaging, cannot continue to use or reuse, need to carry out again the problem of coating construction etc.And technical scheme of the present invention can guarantee by the method for mechanical connection the reliability connecting under hot conditions, multi-layer compound structure design simultaneously, optimization of material and the design of arc microflute can reduce in work progress for the temperature conditions requirement boning.Thermal-flame protective materials provided by the invention has the thermal shock of high temperature resistance flame, mechanical strength is high, fire protecting performance is excellent, without advantages such as ablation, reusable, easy construction, easy maintenance are quick, can adapt to large area and use and the environment higher to installation, maintenance time requirement.Above-mentioned thermal-flame protective materials provided by the invention is adapted at using in the hot environment of 500-1500 ℃.
Accompanying drawing explanation
Fig. 1 is the structural representation of SMD thermal-flame protective materials;
Fig. 2 is the sectional view after SMD thermal-flame protective materials has been constructed;
Fig. 3 is the structural representation of rigid support sheet;
Fig. 4 is the set-up mode schematic diagram of SMD thermal-flame protective materials.
Drawing reference numeral explanation:
Securing member 1 potsherd 2 compound heat-insulation layer 3 rigid support sheet 4 binding material 5 encapsulant 6 screw 7 arc microflute 8 need 9 gaps 10, surface of protection
The specific embodiment
By specific embodiment, describe the present invention program's enforcement and the beneficial effect having in detail below, but can not can form any restriction by practical range to of the present invention.
Embodiment
The present embodiment provides a kind of thermal-flame protective materials, and it has lamellar structure, as shown in Figure 1, can be described as SMD thermal-flame protective materials, and the material that various piece adopts is as shown in table 1.
Table 1
| Title | Specification/mm | Material |
| Potsherd | 150×100×1.5 | Three-dimensional carbon fabric strengthens quartzy |
| Compound heat-insulation layer | 150×100×3 | Not Lay mineral wool cloth, nickel foil |
| Supporter (rigid support sheet) | 150×100×4 | Cr13 steel |
| Securing member (screw) | M5/ performance rate is greater than 8.8, GB/T 3098.1-2000 | Cr18Mn12 steel |
The preparation process of SMD thermal-flame protective materials:
Potsherd 2 is strengthened and quartzyly by vacuum impregnation-drying-sintering process repeatedly, to be made by three-dimensional carbon fabric, wherein, the volume fraction of fiber is that 30-40% is (with fabric and quartzy calculation of total, the count of reflection fabric), the axial braid angle of three dimensional fabric is 35-40 °, and longitudinal knitted angle is 30-45 °; On potsherd, be provided with the hole of passing for securing member;
Compound heat-insulation layer 3 is made by laminated by the thick not Lay mineral wool cloth of two-layer 1.5mm and the thick nickel foil of two-layer 0.6mm, and wherein, Lay mineral wool cloth and nickel foil space do not arrange; On compound heat-insulation layer, be provided with the hole of passing for securing member;
Rigid support sheet 4 is processed by required specification by Cr13 steel, meanwhile, processes 4 screw 7 and the arc microflutes 8 of hole gap width around below 1mm that match with securing member (screw) 1 specification, and the shape of arc microflute 8 as shown in Figure 3;
The M5 screw that securing member 1 adopts Cr18Mn12 steel to make;
After preparing above-mentioned various piece, make screw successively through potsherd 2, compound heat-insulation layer 3, and realize and being threaded with rigid support sheet 4 by screw 7, thereby potsherd 2, compound heat-insulation layer 3 and rigid support sheet 4 are secured together, form SMD thermal-flame protective materials.
The construction method of SMD thermal-flame protective materials:
1, according to the instructions for use of binding material, encapsulant, prepare burden, wherein, the high-strength organic structure glue of HT160 type that binding material selects Huitian Glue Ind Co., Ltd., Hubei to produce, the TS737 type high-temperature repairing agent that encapsulant selects Beijing Tianshan New Materials and Technology Co., Ltd. to produce;
2, according to the size of construction area, select the SMD thermal-flame protective materials of some, and the surface of needs protection and the unilateral side to above-mentioned surface of rigid support are carried out to surface coarsening processing (sandblast, polishing all can);
3, utilize binding material 5 above-mentioned SMD thermal-flame protective materials to be bonded on the surface 9 that needs protection, as shown in Figure 4, between SMD thermal-flame protective materials, retain the gap 10 of width below 3mm (in use coming off because expansion causes avoiding), and then by encapsulant 6 uniform fillings to above-mentioned gap 10 and the edge of SMD thermal-flame protective materials;
4,, after bonding and sealing complete, after normal temperature cure in standing 48 hours, can use; The setting positions of the position relationship of each layer, binding material and encapsulant etc. as shown in Figure 2.
The performance parameter of the above-mentioned SMD thermal-flame protective materials that the present embodiment provides is as shown in table 2.
The performance parameter of the SMD thermal-flame protective materials of table 2
| Performance | Unit | Method of testing | Numerical value |
| Density | Kg/m 2 | / | 3.5 |
| Thickness | mm | / | 7.5 |
| Thermal conductivity factor | W/m·k | / | 1.7 |
| Cementability | MPa | 200℃/10min | ＞10 |
| High temperature resistance flame | Be placed in benzine blow lamp lower 60 seconds, then water-cooled, to room temperature, 10 times repeatedly, is observed material | Surface is without ablation phenomen, whole without damaged, without coming off | |
| Sea water resistance | 240h is non-foaming, do not come off, not efflorescence | GB1763-89 | Qualified |
| Salt fog resistance | GB1771-89 | 1500h is without significant change |
Wherein, the temperature of benzine blow lamp is approximately 900-1000 ℃; The test that also can adopt flame gun (≤1550 ℃) to carry out high temperature resistance flame is examined material, method of testing: thermal-flame protective materials is placed in and carries out the high temperature sintering about 30 seconds under flame gun, then water-cooled is to room temperature, by calcination and cooling repeating 10 times.Through after above-mentioned test, the situation of the thermal-flame protective materials that makes discovery from observation is: surface is without ablation phenomen, whole without breakage, without coming off.
After through thermal-flame thermal shock, calcination, the thermal-flame protective materials that the present embodiment provides can not be subject to obvious damage, and when thermal-flame repeatedly carries out thermal shock, calcination, above-mentioned protective materials still can provide good barrier propterty.Meanwhile, when thermal-flame protective materials that the present embodiment provides through for a long time, repeatedly use after, when potsherd may have local damage, can easily corresponding potsherd be removed, the potsherd that quick-replaceable is new, has realized the object of Fast-Maintenance.And when reusing, the performance of thermal-flame protective materials there will not be obvious decline.Thermal-flame protective materials provided by the invention all can adopt similar method to reuse.
Above embodiment is only unrestricted for technical scheme of the present invention is described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not depart from the spirit and scope of technical solution of the present invention.
Claims (13)
1. a thermal-flame protective materials, wherein, this thermal-flame protective materials is at least comprised of potsherd and supporter, this potsherd is connected by securing member with supporter, described supporter is for being attached to this thermal-flame protective materials on the surface that needs protection, and described supporter is a rigid support sheet;
This thermal-flame protective materials also has a compound heat-insulation layer, and this compound heat-insulation layer is arranged between described potsherd and described supporter, and described compound heat-insulation layer is made by laminated by inorfil cloth and metal forming;
Described potsherd is made by Continuous Fiber Reinforced Ceramic Matrix Composites, wherein, described Continuous Fiber Reinforced Ceramic Matrix Composites comprises that two-dimentional quartz textile strengthens quartzy, three-dimensional quartz fabric and strengthens quartzy, Two-dimensional Carbon fabric and strengthen quartzy, three-dimensional carbon fabric and strengthen quartzy, Two-dimensional Carbon fabric and strengthen silicon carbide ceramics and three-dimensional carbon fabric and strengthen one or more the combination in silicon carbide ceramics.
2. thermal-flame protective materials as claimed in claim 1, wherein, described rigid support sheet is formed from steel.
3. thermal-flame protective materials as claimed in claim 2, wherein, described steel is Cr12 steel and/or Cr13 steel.
4. thermal-flame protective materials as claimed in claim 1, wherein, described rigid support sheet is provided with for the fixing hole of described securing member, and, near this hole, be provided with arc microflute.
5. thermal-flame protective materials as claimed in claim 1, wherein, described inorfil cloth is High silica glass cloth and/or Lay mineral wool cloth not.
6. thermal-flame protective materials as claimed in claim 1, wherein, described metal forming is nickel foil or stainless steel foil.
7. thermal-flame protective materials as claimed in claim 1, wherein, described securing member is screw.
8. the thermal-flame protective materials as described in claim 1 or 7, wherein, described securing member is made by heat resisting steel.
9. thermal-flame protective materials as claimed in claim 8, wherein, described heat resisting steel is a kind of in 3Cr18 steel, Cr18Mn12 steel and 12CrMoV steel.
10. a thermal-flame means of defence, the method is to adopt thermal-flame protective materials described in claim 1-9 any one to be attached to need the surface of protection to carry out thermal-flame protection, wherein, described thermal-flame protective materials is by its supporter and the surface conjunction that needs protection.
11. thermal-flame means of defences as claimed in claim 10, wherein, described thermal-flame protective materials carries out combination by following steps:
The supporter of described thermal-flame protective materials is pasted to the surface of needs protection by binding material;
Utilize encapsulant to fill the gap between described thermal-flame protective materials;
Carrying out above normal temperature cure in 48 hours processes.
12. thermal-flame means of defences as claimed in claim 11, wherein, described binding material is heatproof epoxyn.
13. thermal-flame means of defences as claimed in claim 11, wherein, described encapsulant is industrial healant.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910243434.3A CN102107547B (en) | 2009-12-24 | 2009-12-24 | High-temperature flame proofing material and high-temperature flame proofing method |
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|---|---|---|---|
| CN200910243434.3A CN102107547B (en) | 2009-12-24 | 2009-12-24 | High-temperature flame proofing material and high-temperature flame proofing method |
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| CN102107547A CN102107547A (en) | 2011-06-29 |
| CN102107547B true CN102107547B (en) | 2014-11-26 |
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