CN105350680B - A kind of external wall heat insulation sound absorbent structure - Google Patents
A kind of external wall heat insulation sound absorbent structure Download PDFInfo
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- CN105350680B CN105350680B CN201510704453.7A CN201510704453A CN105350680B CN 105350680 B CN105350680 B CN 105350680B CN 201510704453 A CN201510704453 A CN 201510704453A CN 105350680 B CN105350680 B CN 105350680B
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- wall
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- rock wool
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- reflection type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
Abstract
The invention discloses a kind of external wall heat insulation sound absorbent structure, including wall body, the wall inner body wall is provided with one layer of rock wool layer, outer wall is provided with one layer of reflection type thermal insulation layer, fixed between the rock wool and wall body using building expansion anchor, the another side of rock wool is provided with waterproof mortar course, the reflection type thermal insulation layer is Nian Jie by an adhesive linkage with wall body, the another side of reflection type thermal insulation layer is provided with overcoat, the reflection type thermal insulation layer is by aluminum foil plate and elastic gum bar construction, aluminum foil plate is converted into waveform or zigzag, and an elastic glue stick is bonded at the top of each of which, form reflection type thermal insulation layer, the elastic glue stick is high resilience polyurethane rubber wear-resisting fender pile pin, diameter and length are according to depending on aluminium foil plate shape.This structure makes wall have excellent anti-flaming thermal-insulation performance in the case where meeting exterior wall intensity requirement, while the noise in External Wall environment carries out sound insulation, in certain cost-range, external wall is had Special use performance.
Description
Technical field
The present invention relates to a kind of external wall technical field, more particularly to a kind of external wall heat insulation sound absorbent structure.
Background technology
By the position of wall under construction and move towards classify：It is divided into exterior wall and the class of interior wall two.Along building edge arrangement
Wall be referred to as exterior wall, the wall surrounded by exterior wall bag referred to as interior wall.External environment mainly passes through heat with indoor thermal environment of building
Radiation, three kinds of forms of thermal convection current and heat transfer carry out heat transfer, so as to influence the temperature of indoor environment and the energy-conservation of building.
Conventional external thermal insulation system mainly takes the method for barrier to reduce the conduction of heat at present.Various external wall outer insulation materials now
Expect that generally existing and base course wall associativity are poor, under the influence of the external force such as freeze thawing resistance, blast, be also easy to produce deformation, come off etc. and show
As causing wall barrier property to decline.The external wall outer insulation material of some organic types especially generally used in recent years, its is easy
The shortcoming of combustion is also intensively highlighted in actual applications, meanwhile, existing exterior wall does not all have the effect of sound-absorbing sound insulation, or
Effect is undesirable, it is therefore necessary to the design of external wall thermal insulation and sound-absorbing system, installation, the anti-flammability of anchoring technique and material
It is improved.
The content of the invention
The goal of the invention of the present invention is：For above-mentioned problem there is provided a kind of external wall heat insulation sound absorbent structure,
This structure makes wall have excellent anti-flaming thermal-insulation performance in the case where meeting exterior wall intensity requirement, while External Wall environment
In noise carry out sound insulation, and in certain cost-range, this structure makes external wall have outside property, moreover it is possible to protect
Demonstrate,prove its safety and service life.
The technical solution adopted by the present invention is as follows：A kind of external wall heat insulation sound absorbent structure, including wall body, the wall
Body inner body wall is used provided with one layer of rock wool layer, outer wall provided with one layer of reflection type thermal insulation layer between the rock wool and wall body
Building expansion anchor is fixed, and the another side of rock wool is provided with waterproof mortar course, and the reflection type thermal insulation layer passes through one with wall body
Adhesive linkage is bonded, and the another side of reflection type thermal insulation layer is provided with overcoat.
Further, reflection type thermal insulation layer is by aluminum foil plate and elastic gum bar construction, i.e., by aluminum foil plate be converted into waveform or
Person's zigzag, and the elastic glue stick of bonding one at the top of each of which, form reflection type thermal insulation layer, and the aluminium foil plate thickness is 0.12 ~
0.2mm, the elastic glue stick is high resilience polyurethane rubber wear-resisting fender pile pin, and diameter and length are according to aluminium foil plate shape
It is fixed, it is described to prevent between elastic glue stick and aluminum foil plate, Nian Jie with aqua type synthetic resin glue between elastic glue stick and wall body
Sheath is glass curtain wall.
Further, the rock wool layer thickness is 50 ~ 80mm, and the one side of rock wool layer is provided with the trapezoidal circular groove of several not insertions
And groove, the depth of the trapezoidal circular groove is 20 ~ 30mm, and the gash depth is 10 ~ 20mm, rock wool layer and waterproof mortar course it
Between be additionally provided with a glass mat, the glass mat is fixed with rock wool layer and waterproof mortar course by built-in reinforcing bar, i.e. steel
One end of muscle is deep into 15 ~ 30mm of rock wool layer, and the other end is deep into 10 ~ 20mm of waterproof mortar course, and reinforcing bar runs through glass mat,
Glass fibre plate thickness is 20 ~ 30mm, and the waterproof mortar course thickness is 20 ~ 30mm.
Further, the adhesive linkage scribbles one layer of reflective insulation film towards wall outer wall side, and the reflective insulation film thickness is
Reflective insulation coating, thickness is 0.1 ~ 0.3mm, and the overcoat is reinforced concrete protective layer, and thickness is 25 ~ 40mm.
Further, its construction technology comprises the following steps：
Step 1, the spacing being drilled with the inwall of wall body between some anchor holes, each anchor hole be 250 ~
300mm, equally, is drilled with the anchor hole of the identical spacing of identical quantity in rock cotton board, anchoring with a diameter of 9mm of expansion anchor ~
12mm, single crab-bolt tensile bearing capacity standard value is not less than 0.6KN, the diameter of the plastic disc small opening pressing plate of expansion anchor end
For 70mm ~ 80mm, then rock cotton board is anchored on wall body；
Step 2, will be obtained by predetermined length cutting in reinforcing bar insertion glass mat, spacing between every reinforcing bar for 200 ~
300mm, the length of two ends extension presses setting value spacing, and then by one end of reinforcing bar, intercalation is entered in the rock cotton board fixed,
And filled into connection gap with silicone sealant of preventing fires；
It is after the completion of step 3, step 2, glass mat removing surface is clean, then divide two layers of construction, every layer of thickness
Identical, bottom first smears the interior plain-water slurry mixed with structure glue together, then smears waterproof mortar course, is compacted when pre-hardening, and stamp support is smeared with wood
Into pitted skin, when scratch coat 6 seventy percent is dry, second layer waterproof mortar is smeared, catches up with optical pressure real；
It is after the completion of step 4, the inner wall construction of wall body, the removing surface of wall body outer wall is clean, by elastic glue stick
It is bonded in glue on wall, the diameter and spacing of every elastic glue stick have been bonded and glue curing depending on aluminium foil plate shape
Afterwards, reflective insulation coating is then coated with, paint solidification shaping is waited；
Step 5, treat step 4 after the completion of, the aluminum foil plate of sizing is overlapped in elastic glue stick, the place aqua type of overlap joint
Synthetic resin glue is bonded, and the place of aluminum foil plate depression is anchored on wall body with expansion anchor, and edge is close with fire prevention silicone
Sealing sealing off gap；
After step 6, aluminum foil plate overlap joint are finished, Glass Curtain Wall Construction is carried out, i.e., overcoat is arranged on reflective insulation layer.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
In configuration aspects, for wall inwall, there is provided rock wool layer, glass mat, cushion, rock wool layer have in itself
The effect of good fire-retardant heat insulation sound-absorbing, trapezoidal circular groove and groove are also opened up in the one side of rock wool layer, when sound wave is propagated inwards,
Trapezoidal circular groove and groove formation resonance sound-absorbing structure on rock wool surface, the wave absorption entered in it is fallen, works as incident acoustic wave
Frequency it is consistent with system frequency when, the air in hole slot produces fierce vibration friction, strengthens sink effect, is formed and absorbed
Peak, makes acoustic energy significantly decay, and reaches the effect of sound-absorbing；Glass mat and cushion primarily serve the work of water-proof thermal insulation flame retardant
With, it is ensured that the security and service life of wall, the reinforcing bar of intercalation can fix rock wool layer, glass layer and buffering very well
Layer, even if being not easy to come off under external force each other；Wall body is anchored with rock wool layer using crab-bolt, is further consolidated
Gu its stability, overcomes unstable defect in existing use, it is ensured that its service life.For wall outer wall, there is provided reflection
Type thermal insulation layer and overcoat, reflection type thermal insulation layer energy reflected sunlight, substantial amounts of thermal source is reflected away, be difficult thermal source indirectly
Into wall in itself, heat-insulated purpose is reached, is also main heat insulation structural of the invention, and glass curtain wall overcoat not only acts as U.S.
The effect of sight, moreover it is possible to protect reflection type thermal insulation layer to be difficult to wreck, consolidate its performance.
In terms of material, the various materials that the present invention is selected are that fire-protection rating is A grades of above incombustible materials, solve tradition
The fire prevention hidden danger of exterior-wall heat insulation sound-absorbing material, meanwhile, from aluminum foil plate as reflection type thermal insulation layer, not only with outstanding reflection
The performance of light, while also having good mechanical strength and Corrosion Protection, it is ensured that it is using safety and increases the service life, aluminium
The metallic luster that paper tinsel plate has can also increase the aesthetic of exterior wall, increase aesthetics, in addition, aluminum foil plate using waveform or
Zigzag structure can further improve its reflecting properties and aesthetics；And on the one hand the elastic glue stick being bonded on aluminum foil plate supports
Aluminum foil plate, enables aluminum foil plate to stablize its profile, on the other hand plays cushion impact forces and weakening, and coated on adhesive linkage it is anti-
Heat-insulated effect can be further functioned as by the light of entrance secondary reflection again by penetrating thermal insulation coating.
In terms of connection and sealing, wall outer wall is provided with adhesive linkage, can ensure that reflection type thermal insulation layer firmly connects well
It is connected on wall, without deformation, the phenomenon such as come off, between elastic glue stick and aluminum foil plate, elastic glue stick and wall body
Between with aqua type synthetic resin glue be bonded, it is ensured that elastic glue stick can firmly be bonded aluminum foil plate and wall body, aluminium foil
The place of plate depression is anchored on wall body with expansion anchor, edge fire prevention silicone sealant sealing off gap, further jail
Gu aluminum foil plate, ensures its security；The gap left between layers is partly in order to solve to expand with heat and contract with cold between material
The problem of, construction leeway on the other hand is left to site operation, and all gaps are sealed with fire prevention silicone sealant, prevent water
Enter pollution wall with debris.
Brief description of the drawings
Fig. 1 is a kind of external wall heat insulation sound absorbent structural representation of the present invention；
Fig. 2 is the rock wool layer partial schematic diagram of the present invention.
Marked in figure：1 is wall body, and 2 be rock wool layer, and 3 be waterproof mortar course, and 4 be reflection type thermal insulation layer, and 5 be protection
Layer, 6 be glass mat, and 7 be adhesive linkage, and 8 be elastic glue stick, and 9 be expansion anchor, and 10 be trapezoidal circular groove, and 11 be groove.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order that the object, technical solution and advantage of invention are more clearly understood, below in conjunction with drawings and Examples, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
As shown in figure 1, a kind of external wall heat insulation sound absorbent structure, including wall body 1, the inwall of wall body 1 is provided with one
Layer rock wool layer 2, outer wall is consolidated provided with one layer of reflection type thermal insulation layer 4 between rock wool layer 2 and wall body 1 using building expansion anchor 9
Fixed, the another side of rock wool layer 2 is provided with waterproof mortar course 3, and reflection type thermal insulation layer 4 is be bonded by an adhesive linkage 7 with wall body 1,
The another side of reflection type thermal insulation layer 4 is provided with overcoat 5.
Aluminum foil plate is converted into waveform or zigzag by reflection type thermal insulation layer 4 by aluminum foil plate and elastic gum bar construction, and
It is bonded an elastic glue stick respectively at the top and bottom of each of which, forms reflection type thermal insulation layer 4, aluminium foil plate thickness is 0.12 ~
0.2mm, optimum thickness is 0.12mm, 0.18mm or 0.2mm, and elastic glue stick is high resilience polyurethane rubber wear-resisting fender pile pin,
Diameter and length use water according to depending on aluminium foil plate shape between elastic glue stick and aluminum foil plate, between elastic glue stick and wall body 1
Fundamental mode synthetic resin glue is bonded, and overcoat 5 is glass curtain wall.
As shown in Fig. 2 the thickness of rock wool layer 2 is 50 ~ 80mm, optimum thickness is 50mm, 60mm or 80mm, the one of rock wool layer 2
Face is provided with the trapezoidal circular groove 10 and groove 11 of several not insertions, and the depth of trapezoidal circular groove is 30 ~ 50mm, and optimum depth is
30mm, 35mm or 50mm, gash depth are 20 ~ 40mm, and optimum depth is 20mm, 30mm or 40mm, rock wool layer 2 and waterproof mortar
A glass mat 6 is additionally provided between layer 3, glass mat 6 is fixed with rock wool layer 2 and waterproof mortar course 3 by built-in reinforcing bar,
That is one end of reinforcing bar is deep into 15 ~ 30mm in rock wool layer 2, preferably gos deep into 15mm, 20mm or 30mm, and the other end is deep into Waterproof sand
10 ~ 20mm in pulp layer 3, preferably gos deep into 10mm, 15mm or 20mm, and reinforcing bar runs through glass mat 6, and the thickness of glass mat 6 is
20 ~ 30mm, optimum thickness be 20mm, 25mm or 30mm, the thickness of waterproof mortar course 3 be 20 ~ 30mm, optimum thickness be 20mm,
25mm or 30mm.
Adhesive linkage 7 scribbles one layer of reflective insulation film towards wall outer wall side, and reflective insulation film thickness is reflective insulation coating,
Thickness is 0.1-0.3mm, and optimum value is 0.1mm, 0.15mm or 0.2mm, and overcoat 5 is reinforced concrete protective layer, and thickness is 25-
40mm, optimum thickness is 25mm, 30mm or 35mm.
To obtain said structure, its construction technology comprises the following steps：
Step 1, the spacing being drilled with the inwall of wall body between some anchor holes, each anchor hole be 250 ~
300mm, optimal spacing is 250mm, 260mm or 300mm, equally, the crab-bolt of the identical spacing of identical quantity is drilled with rock cotton board
Hole, the anchoring a diameter of 9mm ~ 12mm of expansion anchor, the optimum diameter of selection is 9mm, 10mm or 12mm, and single crab-bolt tension is held
Carry power standard value and be not less than 0.6KN, a diameter of 70mm ~ 80mm of the plastic disc small opening pressing plate of expansion anchor end, it is optimal straight
Footpath is 70mm, 75mm or 80mm, and then rock cotton board is anchored on wall body；
Step 2, will be obtained by predetermined length cutting in reinforcing bar insertion glass mat, spacing between every reinforcing bar for 200 ~
300mm, optimal spacing is 200mm, 240mm or 300mm, and the length of two ends extension presses setting value spacing, then by reinforcing bar
One end, intercalation enters in the rock cotton board fixed, and filled into connection gap with silicone sealant of preventing fires；
It is after the completion of step 3, step 2, glass mat removing surface is clean, then divide two layers of construction, every layer of thickness
Identical, bottom first smears the interior plain-water slurry mixed with structure glue together, then smears waterproof mortar course, is compacted when pre-hardening, and stamp support is smeared with wood
Into pitted skin, when scratch coat 6 seventy percent is dry, second layer waterproof mortar is smeared, catches up with optical pressure real；
It is after the completion of step 4, the inner wall construction of wall body, the removing surface of wall body outer wall is clean, by elastic glue stick
It is bonded in glue on wall, the diameter and spacing of every elastic glue stick have been bonded and glue curing depending on aluminium foil plate shape
Afterwards, reflective insulation coating is then coated with, paint solidification shaping is waited；
Step 5, treat step 4 after the completion of, the aluminum foil plate of sizing is overlapped in elastic glue stick, the place aqua type of overlap joint
Synthetic resin glue is bonded, and the place of aluminum foil plate depression is anchored with expansion anchor, edge fire prevention silicone sealant sealing off gap；
After step 6, aluminum foil plate overlap joint are finished, Glass Curtain Wall Construction is carried out, i.e., overcoat is arranged on reflective insulation layer.
When external light source or thermal source are when to be delivered to this structure outer in the form of heat radiation, most heat radiation meetings
Aluminum foil plate reflection in reflection type thermal insulation layer 4, and then heat-insulated effect is served, but still there is sub-fraction thermal source to enter exterior wall
It is interior, now remaining thermal source is reflected away by the reflective insulation coating on adhesive linkage, heat-insulated double effectses are reached, and
Successively decreased by the incoming heat of heat transfer by barrier layer by layer, when reaching rock wool layer, heat is seldom, passes through the barrier of rock wool
Effect, reaches maximum effect of heat insulation.When external sound reaches exterior wall, pass through overcoat, reflection type thermal insulation layer, adhesive linkage and wall
Body body reduces the intensity of sound, then formed by the trapezoidal circular groove and groove on rock wool surface to the attenuation of sound
Resonance sound-absorbing structure, the wave absorption entered in it is fallen, when the frequency of incident acoustic wave is consistent with system frequency, in hole slot
Air produces fierce vibration friction, strengthens sink effect, forms absworption peak, acoustic energy is significantly decayed, reach the effect of sound-absorbing
Really.The outer layer of whole wall has fish tail and waterproof layer, prevents mechanical damage and environmental disruption, and lifting wall resists the ability of destruction,
Internal layer has certain elasticity, can buffer certain impact, further the impact resistance of lifting wall, it is ensured that the use of wall
Life-span and safety in utilization, increase the adaptability of wall.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (3)
1. a kind of external wall heat insulation sound absorbent structure, including wall body（1）, it is characterised in that the wall body（1）Inwall
Provided with one layer of rock wool layer（2）, outer wall is provided with one layer of reflection type thermal insulation layer（4）, the rock wool layer（2）With wall body（1）Between
Using building expansion anchor（9）It is fixed, rock wool layer（2）Another side be provided with waterproof mortar course（3）, the reflection type thermal insulation layer
（4）With wall body（1）Pass through an adhesive linkage（7）Bonding, reflection type thermal insulation layer（4）Another side be provided with overcoat（5）, it is described
Reflection type thermal insulation layer（4）By aluminum foil plate and elastic gum bar construction, i.e., aluminum foil plate is converted into waveform or zigzag, and it is every at its
Individual top and bottom are bonded an elastic glue stick respectively, form reflection type thermal insulation layer（4）, the aluminium foil plate thickness be 0.12 ~
0.2mm, the elastic glue stick is high resilience polyurethane rubber wear-resisting fender pile pin, and diameter and length are according to aluminium foil plate shape
It is fixed, between elastic glue stick and aluminum foil plate, elastic glue stick and wall body（1）Between with aqua type synthetic resin glue be bonded, institute
State overcoat（5）For glass curtain wall, its construction technology comprises the following steps：
Step 1, the spacing being drilled with the inwall of wall body between some anchor holes, each anchor hole are 250 ~ 300mm, together
Sample, is drilled with the anchor hole of the identical spacing of identical quantity, the anchoring a diameter of 9mm ~ 12mm of expansion anchor, single anchor in rock cotton board
Bolt tensile bearing capacity standard value is not less than 0.6KN, and a diameter of 70mm of the plastic disc small opening pressing plate of expansion anchor end ~
Rock cotton board, is then anchored on wall body by 80mm；
Step 2, will be obtained by predetermined length cutting in reinforcing bar insertion glass mat, spacing between every reinforcing bar for 200 ~
300mm, the length of two ends extension presses setting value spacing, and then by one end of reinforcing bar, intercalation is entered in the rock cotton board fixed,
And filled into connection gap with silicone sealant of preventing fires；
It is after the completion of step 3, step 2, glass mat removing surface is clean, then divide two layers of construction, every layer of thickness is identical,
Bottom first smears the interior plain-water slurry mixed with structure glue together, then smears waterproof mortar course, is compacted when pre-hardening, smears stamp with wood and support into fiber crops
Face, when scratch coat 6 seventy percent is dry, smears second layer waterproof mortar, catches up with optical pressure real；
It is after the completion of step 4, the inner wall construction of wall body, the removing surface of wall body outer wall is clean, by elastic glue stick glue
Water is bonded on wall, and the diameter and spacing of every elastic glue stick have been bonded and after glue curing, so depending on aluminium foil plate shape
After coat reflective insulation coating, wait paint solidification shaping；
Step 5, treat step 4 after the completion of, the aluminum foil plate of sizing is overlapped in elastic glue stick, the place of overlap joint is synthesized with aqua type
Resin glue is bonded, and the place of aluminum foil plate depression is anchored with expansion anchor, edge fire prevention silicone sealant sealing off gap；
After step 6, aluminum foil plate overlap joint are finished, Glass Curtain Wall Construction is carried out, i.e., overcoat is arranged on reflective insulation layer.
2. external wall heat insulation sound absorbent structure as claimed in claim 1, it is characterised in that the rock wool layer（2）Thickness be 50 ~
80mm, rock wool layer（2）One side be provided with several not insertions trapezoidal circular groove（10）And groove（11）, the depth of the trapezoidal circular groove
Spend for 30 ~ 50mm, the gash depth is 20 ~ 40mm, rock wool layer（2）With waterproof mortar course（3）Between be additionally provided with a glass fibers
Tie up plate（6）, the glass mat（6）With rock wool layer（2）And waterproof mortar course（3）Fixed by built-in reinforcing bar, i.e. reinforcing bar
One end is deep into rock wool layer（2）15 ~ 30mm, the other end is deep into waterproof mortar course（3）10 ~ 20mm, reinforcing bar runs through glass fibre
Plate（6）, glass mat（6）Thickness is 20 ~ 30mm, the waterproof mortar course（3）Thickness is 20 ~ 30mm.
3. external wall heat insulation sound absorbent structure as claimed in claim 2, it is characterised in that the adhesive linkage（7）Towards wall outer wall
Side scribbles one layer of reflective insulation film, and the reflective insulation film is reflective insulation coating, and thickness is 0.1 ~ 0.3mm, described anti-
Sheath（5）For reinforced concrete protective layer, thickness is 25 ~ 40mm.
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| CN201510704453.7A CN105350680B (en) | 2015-10-27 | 2015-10-27 | A kind of external wall heat insulation sound absorbent structure |
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| CN105835476A (en) * | 2016-05-03 | 2016-08-10 | 苏州中材建设有限公司 | Rock wool composite insulation board for heat energy equipment and preparation method thereof |
| CN106087516B (en) * | 2016-08-25 | 2017-12-01 | 新昌县澄潭镇澄设机械厂 | A kind of pulper with decrease of noise functions |
| CN107128020B (en) * | 2017-05-17 | 2019-02-12 | 浙江泰昌新能源有限公司 | A kind of heat preservation stratified material |
| CN107160767B (en) * | 2017-05-27 | 2019-04-02 | 青岛博纳仿生复合材料研究院有限公司 | A kind of heat preservation stratified material may be provided with temperature regulation structure |
| CN107201805A (en) * | 2017-07-11 | 2017-09-26 | 中国建筑第七工程局有限公司 | Computer room sound-absorbing coating structure and its construction method |
| CN107620388B (en) * | 2017-09-21 | 2022-11-15 | 南京工业大学 | Laminated rubber connecting structure of wood keel and panel |
| CN115012559B (en) * | 2022-06-30 | 2024-03-12 | 广东电网有限责任公司 | Partition wall of power distribution station |
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| CN105350680A (en) | 2016-02-24 |
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