CN105081289B - Compound insulation material plate - Google Patents
Compound insulation material plate Download PDFInfo
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- CN105081289B CN105081289B CN201510543392.0A CN201510543392A CN105081289B CN 105081289 B CN105081289 B CN 105081289B CN 201510543392 A CN201510543392 A CN 201510543392A CN 105081289 B CN105081289 B CN 105081289B
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- insulating material
- material plate
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 43
- 239000012774 insulation material Substances 0.000 title abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000005338 heat storage Methods 0.000 claims abstract description 12
- 239000011810 insulating material Substances 0.000 claims description 38
- 239000011159 matrix material Substances 0.000 claims description 31
- 239000000945 filler Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000010146 3D printing Methods 0.000 claims description 2
- 239000006004 Quartz sand Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 235000019362 perlite Nutrition 0.000 claims description 2
- 239000010451 perlite Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 19
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000003031 feeding effect Effects 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
The invention provides a compound insulation material plate. The compound insulation material plate comprises multiple framework units and a base body. Each framework unit is provided with a negative Poisson ratio structure, and is formed by connecting multiple first rod pieces, second rod pieces and third rod pieces with different lengths; the rod pieces are made of the same material; and the heat storage coefficient of the rod piece material meets the formula I in the specification; the refractoriness of the rod piece material is more than or equal to 1600 DEG C; the high-temperature strength of the rod piece material at a condition of 1600 DEG C is greater than or equal to 1.0 MPa; and the coefficient of thermal expansion of the rod piece material at a condition of 200 DEG C-1600 DEG C is 1.0*10＜-6＞/DEG C. The base body is adopted, so that the multiple framework units are embedded in the base body and are integral with the base body, and the heat storage coefficient of the base body meets the formula II in the specification. The negative Poisson ratio structure is adopted by the framework units, so that the framework units have high insulation performance and high temperature resistance; and the framework units generate anti-pressure ability when being stressed to deform, so that the framework units can well withstand impact and bending deflection. When the compound insulation material plate is applied to a casting process, the size of a dead head can be reduced; the dead head feeding effect can be improved; the technical yield of castings can be improved; the cleaning work of the castings is reduced; the cost is lowered; and the requirement of energy conservation and environment protection is met.
Description
Technical field
A kind of the present invention relates to large-scale steel-casting casting technology field, more particularly to compound insulating material plate.
Background technology
In the production of foundry goods, Jing extends the setting time of foundry goods local frequently with insulation material, is conducive to play
Feeding or the unimpeded effect of Feeding channel.But for steel-casting, due to pouring molten steel temperature height, therefore to insulation material
Mechanical behavior under high temperature and stability such as refractoriness, weld point, elevated temperature strength, thermal coefficient of expansion requirement is very high, and these performances are past
Toward contradicting with heat-insulating property, it is difficult to find while having the good thermal insulation property material with good resistance to elevated temperatures again.Especially
, in the production of large-scale steel-casting, the molten steel solidification time is long for which, and the resistance to elevated temperatures requirement to insulation material is higher.Therefore big
In type Steel Castings Jing often occur insulation material deform, be crushed, by erosion and the problems such as sinter with foundry goods.Complex heat-preservation
Material is widely used in industries such as buildings, but which applies temperature of the temperature far below large-scale steel-casting, and its insulation
Performance is also different with the requirement of casting industry with size.General composite construction mostly is the skeleton of lamellar composite or middle simple form
It is compound.
The content of the invention
In view of problem present in background technology, it is an object of the present invention to provide a kind of compound insulating material plate,
Which has good heat-insulating property and resistance to elevated temperatures, is adapted to the production of large-scale steel-casting.
Further object is that providing a kind of compound insulating material plate, its good heat-insulating property and high temperature resistant
Performance can reduce Riser Dimensions, improve riser feeding effect, so as to improve the product yield of foundry goods；Meanwhile, can also reduce
The cleaning work of foundry goods, reduces cost meet the requirement of energy-conserving and environment-protective.
To achieve these goals, the invention provides a kind of compound insulating material plate, it include multiple skeleton units and
Matrix.
Each skeleton unit has a negative poisson's ratio, each skeleton unit by the first different rod member of many length, the second rod member,
Three rod members are formed by connecting, and the first rod member, the second rod member, the 3rd rod member adopt bar material of the same race, the accumulation of heat of the bar material
Coefficient meets：
In Formulas I, S1For the heat storage coefficient of bar material, unit is J/ (m2·℃·s1/2), s is the second；λ1For bar material
Heat conductivity, unit be W/ (m DEG C)；ρ1For the density of bar material, unit is kg/m3；c1For the specific heat of bar material,
Unit is J/ (kg DEG C).
Refractoriness >=1600 DEG C of bar material；The elevated temperature strength of bar material more than 1600 DEG C under conditions of more than etc.
In 1.0MPa；The thermal coefficient of expansion of bar material is 1.0 × 10 under the conditions of 200 DEG C～1600 DEG C-6/℃。
Matrix makes the plurality of skeleton unit be embedded in matrix and be integrally formed with matrix, and the heat storage coefficient of matrix is full
Foot：
In Formula II, S2Based on heat storage coefficient, unit be J/ (m2·℃·s1/2), s is the second；λ2Based on heat conduction system
Number, unit are W/ (m DEG C)；ρ2Based on density, unit is kg/m3；c2Based on specific heat, unit be J/ (kg DEG C).
Beneficial effects of the present invention are as follows：In the compound insulating material plate of the present invention, the skeleton of compound insulating material plate
Using negative poisson's ratio structure, with good heat-insulating property and resistance to elevated temperatures, anti-pressure ability during compressive deformation, can be produced, so as to
Can be good at resisting impact and flexural deformation, this is especially suitable for the casting process of large-scale steel-casting, is certainly not limited to this, can be with
Suitable for any suitable field.Simultaneously as the good heat-insulating property of the skeleton and matrix of compound insulating material plate and Nai Gao
Warm nature energy, when the casting process of large-scale steel-casting is applied to, it is possible to decrease Riser Dimensions, improves riser feeding effect, so as to carry
The high product yield of foundry goods, also reduces the cleaning work of foundry goods, reduces cost, meet energy-conserving and environment-protective.
Description of the drawings
Fig. 1 is the axonometric chart of a skeleton unit of compound insulating material plate of the invention；
Fig. 2 is the left view of the skeleton unit of Fig. 1；
Fig. 3 is the schematic diagram of the mid portion of the skeleton unit of Fig. 1, and show rod length, skeleton total height with
And the relation of the angle between two rod members being connected.
Fig. 4 is that the skeleton unit of compound insulating material plate of the invention is embedded in matrix sintering in the interior intracavity of mould
Axonometric chart afterwards, wherein outside is mould, and based on inside, central frame is skeleton unit.
Fig. 5 is that the enlarged drawing of the dotted box portion in Fig. 4 is illustrated wherein for the sake of removing, only and Fig. 1 identicals one
Skeleton unit.
Wherein, description of reference numerals is as follows：
1 skeleton unit
The total height of H skeleton units
11 first rod members
12 second rod members
13 the 3rd rod members
The length of the first rod members of L1 11
The length of the second rod members of L2 12
The length of the 3rd rod members 13 of L3
Angle between θ the first rod members 11 and the 3rd rod member 13
2 matrixes
The thickness of slab of d compound insulating material plates
M moulds
Specific embodiment
With reference to the accompanying drawings describing compound insulating material plate of the invention in detail.
Referring to figs. 1 to Fig. 5, compound insulating material plate of the invention includes multiple skeleton units 1 and matrix 2.
Each skeleton unit 1 has negative poisson's ratio, and each skeleton unit 1 is by the first different rod member 11 of multiple length, the second bar
Part 12, the 3rd rod member 13 are formed by connecting, and the first rod member 11, the second rod member 12, the 3rd rod member 13 adopt bar material of the same race, should
The heat storage coefficient of bar material meets：
In Formulas I, S1For the heat storage coefficient of bar material, unit is J/ (m2·℃·s1/2), s is the second；λ1For bar material
Heat conductivity, unit be W/ (m DEG C)；ρ1For the density of bar material, unit is kg/m3；c1For the specific heat of bar material,
Unit is J/ (kg DEG C).
The refractoriness of bar material is equal to or more than 1600 DEG C；Condition of the elevated temperature strength of bar material more than 1600 DEG C
It is equal to or more than down 1.0MPa；The thermal coefficient of expansion of bar material is 1.0 × 10 under the conditions of 200 DEG C～1600 DEG C-6/℃。
Matrix 2 makes the plurality of skeleton unit 1 be embedded in matrix 2 and be integrally formed with matrix 2, and the accumulation of heat of matrix 2
Coefficient meets：
In Formula II, S2Based on 2 heat storage coefficient, unit be J/ (m2·℃·s1/2), s is the second；λ2Based on 2 heat conduction
Coefficient, unit are W/ (m DEG C)；ρ2Based on 2 density, unit is kg/m3；c2Based on 2 specific heat, unit be J/ (kg
℃)。
In the compound insulating material plate of the present invention, the skeleton 1 of compound insulating material plate adopts negative poisson's ratio structure, has
Good heat-insulating property and resistance to elevated temperatures, can produce anti-pressure ability during compressive deformation such that it is able to resist well impact and
Flexural deformation, this is especially suitable for the casting process of large-scale steel-casting, is certainly not limited to this, goes for any suitable neck
Domain.Simultaneously as the good heat-insulating property of the skeleton 1 and matrix 2 of compound insulating material plate and resistance to elevated temperatures, big when being applied to
During the casting process of type steel-casting, it is possible to decrease Riser Dimensions, improve riser feeding effect, so as to the technique that improve foundry goods is produced
Rate, also reduces the cleaning work of foundry goods, reduces cost, meet energy-conserving and environment-protective.
In one embodiment, each skeleton unit 1 can be indent honeycomb texture, hand structure, star structure or double-head arrow shape
Structure, but not only limit thus, can also be other shapes of structure.
In one embodiment, referring to figs. 1 to Fig. 5, each skeleton unit 1 adopts indent honeycomb texture, in each skeleton unit 1
In, the first rod member 11 forms two-layer, and the correspondence of the second rod member 12 is connected to the vertical outside of the two-layer, the 3rd rod member (13) correspondence
It is connected between the two-layer；The thickness of slab of compound insulating material plate is d；The length of the first rod member 11 is L1, the second rod member 12
Length is L2, the length of the 3rd rod member 13 is L3, wherein：The overall height H of each skeleton unit 1 is 1/5d～1/2d and is equal to or big
In 15mm；First rod member 11, the second rod member 12, a diameter of 1/10L3～1/5L3 of the 3rd rod member 13 and be equal to or more than 2mm；
Angle theta between first rod member 11 and the second rod member 13 of connection is 45 °～70 °.
In one embodiment, length L1 of the first rod member 11 of each skeleton unit 1, the length of the second rod member 12, the 3rd 13
Length L3 can be determined by the angle theta between the overall height H of each skeleton unit 1 and first rod member 11 and the second rod member 13 of connection
Fixed, the relational expression between them is：
In one embodiment, the ratio of the volume of the plurality of skeleton unit 1 and the volume of compound insulating material plate be less than or
Equal to 25%, the weight of the plurality of skeleton unit 1 is less than or equal to 30% with the weight ratio of compound insulating material plate.
In one embodiment, the bar material of each skeleton unit 1 can be quartz sand, but not only limit thus, can also basis
Need to select other materials.
In one embodiment, the material of matrix (2) is perlite, but is not only limited thus, other can also be selected as needed
Material.
In one embodiment, with reference to Fig. 4 and Fig. 5, the plurality of skeleton unit 1 tiles along x and y directions, and along Z-direction heap
Pile is generated into disjunctor layer structure, the disjunctor layer structure that the plurality of skeleton unit 1 is stacked to using 3D printing integration, institute
State the disjunctor layer structure that multiple skeleton units 1 are stacked to be embedded in matrix 2 and be integrally formed compound insulating material with matrix 2
Plate.
In one embodiment, with reference to Fig. 4 and Fig. 5, the forming process of the compound insulating material plate is：By the plurality of bone
The disjunctor layer structure that frame unit 1 is stacked to is placed in the die cavity of a mould M, and matrix 2 is added in die cavity, is filled out in filler mode
Fill the cavity of the disjunctor layer structure that the plurality of skeleton unit 1 is stacked to and cover what the plurality of skeleton unit 1 was stacked to
Disjunctor layer structure, is finally put into mould M in sintering furnace and is sintered come ram-jolt filler by vibrating mould M afterwards, final described
The disjunctor layer structure that multiple skeleton units 1 are stacked to is embedded in matrix 2 and is integrally formed compound insulating material with matrix 2
Plate.
In one embodiment, matrix 2 is added in die cavity in paste filler mode.
Claims (10)
1. a kind of compound insulating material plate, it is characterised in that include：
Multiple skeleton unit (1), each skeleton unit (1) has a negative poisson's ratio, each skeleton unit (1) by many length it is different the
One rod member (11), the second rod member (12), the 3rd rod member (13) are formed by connecting, the first rod member (11), the second rod member (12), the 3rd bar
Part (13) adopts the heat storage coefficient of bar material of the same race, the bar material to meet：
In Formulas I, S1For the heat storage coefficient of bar material, unit is J/ (m2·℃·s1/2), s is the second；λ1Leading for bar material
Hot coefficient, unit are W/ (m DEG C)；ρ1For the density of bar material, unit is kg/m3；c1For the specific heat of bar material, unit
For J/ (kg DEG C)；
Refractoriness >=1600 DEG C of bar material；
The elevated temperature strength of bar material more than 1600 DEG C under conditions of be more than or equal to 1.0MPa；
The thermal coefficient of expansion of bar material is 1.0 × 10 under the conditions of 200 DEG C～1600 DEG C-6/℃；And
Matrix (2), makes the plurality of skeleton unit (1) be embedded in matrix (2) and be integrally formed with matrix (2), and matrix (2)
Heat storage coefficient meet：
In Formula II, S2Based on (2) heat storage coefficient, unit be J/ (m2·℃·s1/2), s is the second；λ2Based on (2) heat conduction
Coefficient, unit are W/ (m DEG C)；ρ2Based on (2) density, unit is kg/m3；c2Based on (2) specific heat, unit is J/
(kg·℃)。
2. compound insulating material plate according to claim 1, it is characterised in that each skeleton unit (1) is indent honeycomb knot
Structure, hand structure, star structure or double-head arrow shape structure.
3. compound insulating material plate according to claim 1, it is characterised in that
Each skeleton unit (1) adopts indent honeycomb texture, in each skeleton unit (1), the first rod member (11) formation two-layer, and second
Rod member (12) correspondence is connected to the vertical outside of the two-layer, and the 3rd rod member (13) correspondence is connected between the two-layer：
The thickness of slab of compound insulating material plate is d；
The length of the first rod member (11) is L1, the length of the second rod member (12) is L2, the length of the 3rd rod member (13) is L3；
The overall height H of each skeleton unit (1) is 1/5d～1/2d and is equal to or more than 15mm；
First rod member (11), the second rod member (12), a diameter of 1/10L3～1/5L3 of the 3rd rod member (13) and it is equal to or more than
2mm；
Angle theta between first rod member (11) and the second rod member (13) of connection is 45 °～70 °.
4. compound insulating material plate according to claim 3, it is characterised in that first rod member of each skeleton unit (1)
(11) length L1, length L2 of the second rod member (12), the 3rd rod member (13) length L3 by each skeleton unit (1) total height
Angle theta between H and first rod member (11) and the 3rd rod member (13) of connection determines that the relational expression between them is：
。
5. compound insulating material plate according to claim 1, it is characterised in that
The volume of the plurality of skeleton unit (1) is less than or equal to 25% with the ratio of the volume of compound insulating material plate；
The weight of the plurality of skeleton unit (1) is less than or equal to 30% with the weight ratio of compound insulating material plate.
6. compound insulating material plate according to claim 1, it is characterised in that the bar material of each skeleton unit (1) is
Quartz sand.
7. compound insulating material plate according to claim 1, it is characterised in that the material of matrix (2) is perlite.
8. compound insulating material plate according to claim 1, it is characterised in that the plurality of skeleton unit (1) is along x and y
Direction is tiled, and is stacked to disjunctor layer structure, the disjunctor layer structure that the plurality of skeleton unit (1) is stacked to along Z-direction
Generated using 3D printing integration, the disjunctor layer structure that the plurality of skeleton unit (1) is stacked to is embedded in matrix (2) simultaneously
Compound insulating material plate is integrally formed with matrix (2).
9. the compound insulating material plate according to any one of claim 1-8, it is characterised in that the compound insulating material
The forming process of plate is：The disjunctor layer structure that the plurality of skeleton unit (1) is stacked to is placed in into the die cavity of a mould (M)
Interior, matrix (2) is added in die cavity, is filled the disjunctor layer structure that the plurality of skeleton unit (1) is stacked in filler mode
Cavity and cover the disjunctor layer structure that the plurality of skeleton unit (1) is stacked to, afterwards by vibrating mould (M) come ram-jolt
Filler, is finally put into mould (M) in sintering furnace and sinters, the disjunctor stratiform knot that final the plurality of skeleton unit (1) is stacked to
Structure is embedded in matrix (2) and is integrally formed compound insulating material plate with matrix (2).
10. compound insulating material plate according to claim 9, it is characterised in that matrix (2) is added in paste filler mode
To in die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543392.0A CN105081289B (en) | 2015-08-28 | 2015-08-28 | Compound insulation material plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543392.0A CN105081289B (en) | 2015-08-28 | 2015-08-28 | Compound insulation material plate |
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| CN105081289A CN105081289A (en) | 2015-11-25 |
| CN105081289B true CN105081289B (en) | 2017-03-22 |
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| CN106499121B (en) * | 2016-11-07 | 2018-12-11 | 青岛理工大学 | Explosion-proof reinforced concrete with negative Poisson ratio effect and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031092A (en) * | 2010-11-26 | 2011-04-27 | 肖利 | Small expended and vitrified ball heat accumulation and heat conduction material and preparation method thereof |
| CN102359237A (en) * | 2011-08-30 | 2012-02-22 | 信阳金固建筑节能保温工程有限公司 | Inorganic vitrified micro bubble external heat-insulating system for outer wall |
| CN103172324A (en) * | 2013-02-22 | 2013-06-26 | 王国英 | Nut shell foam grain cement composite thermal insulation material |
| CN103466999A (en) * | 2013-08-27 | 2013-12-25 | 信阳科思建筑节能科技有限公司 | Superfine fiber composite heat insulation material, heat insulation plate and preparation method of heat insulation plate |
| CN104086152A (en) * | 2014-07-15 | 2014-10-08 | 内蒙古北方重工业集团有限公司 | Preparation method of thermal desorption insulation board |
-
2015
- 2015-08-28 CN CN201510543392.0A patent/CN105081289B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031092A (en) * | 2010-11-26 | 2011-04-27 | 肖利 | Small expended and vitrified ball heat accumulation and heat conduction material and preparation method thereof |
| CN102359237A (en) * | 2011-08-30 | 2012-02-22 | 信阳金固建筑节能保温工程有限公司 | Inorganic vitrified micro bubble external heat-insulating system for outer wall |
| CN103172324A (en) * | 2013-02-22 | 2013-06-26 | 王国英 | Nut shell foam grain cement composite thermal insulation material |
| CN103466999A (en) * | 2013-08-27 | 2013-12-25 | 信阳科思建筑节能科技有限公司 | Superfine fiber composite heat insulation material, heat insulation plate and preparation method of heat insulation plate |
| CN104086152A (en) * | 2014-07-15 | 2014-10-08 | 内蒙古北方重工业集团有限公司 | Preparation method of thermal desorption insulation board |
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