CN110181743B - Device and method for coating fiber reinforced foam heat insulation layer outside large-sized rotating body - Google Patents
Device and method for coating fiber reinforced foam heat insulation layer outside large-sized rotating body Download PDFInfo
- Publication number
- CN110181743B CN110181743B CN201910384754.4A CN201910384754A CN110181743B CN 110181743 B CN110181743 B CN 110181743B CN 201910384754 A CN201910384754 A CN 201910384754A CN 110181743 B CN110181743 B CN 110181743B
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- tank body
- cavity
- rotating
- die
- mold
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000009413 insulation Methods 0.000 title claims abstract description 22
- 239000000835 fiber Substances 0.000 title claims abstract description 21
- 239000006260 foam Substances 0.000 title claims abstract description 21
- 239000011248 coating agent Substances 0.000 title claims abstract description 18
- 238000000576 coating method Methods 0.000 title claims abstract description 18
- 238000005187 foaming Methods 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 239000004744 fabric Substances 0.000 claims abstract description 29
- 239000007921 spray Substances 0.000 claims abstract description 11
- 239000006261 foam material Substances 0.000 claims abstract description 10
- 238000013007 heat curing Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000001723 curing Methods 0.000 claims description 4
- 210000002268 wool Anatomy 0.000 claims 2
- 239000002131 composite material Substances 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 8
- 238000010923 batch production Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/35—Component parts; Details or accessories
Abstract
The invention discloses a device and a method for coating a fiber reinforced foam heat insulation layer outside a large rotating body, wherein the device comprises a running device and a single-sided coiled or napped sparse fabric, the running device comprises a bracket and a rotatable clamping mechanism arranged on the bracket, a tank body is clamped on the clamping mechanism, a guide rail is horizontally arranged on one side of the bracket, a working mechanism is slidably arranged on the guide rail, and a die and a spray gun are arranged on the working mechanism. Meanwhile, a layer of fabric is fixed on the surface of the finally formed foaming layer, and the coil of the fabric plays a role in hooking in the foam material, so that a composite body is formed by the fabric and the foam, the fabric and the coil play a role in enhancing the foam, and the overall strength is improved.
Description
Technical Field
The invention relates to the technical field of liquefied gas, in particular to a device and a method for coating a fiber reinforced foam heat insulation layer outside a large rotating body.
Background
Along with popularization of liquefied gas, the low-temperature liquefied gas storage tank is used more and more. Since such reservoirs are subject to pressure, they are generally designed as rotating bodies, in which the forces are relatively reasonable and relatively convenient to manufacture, i.e. cylindrical and spherical. In order to be safe, it is necessary to keep the liquefied gas in the tank at a very low temperature, so that a very good insulation of such tanks is required to prevent the outside temperature from being transferred into the tank. The materials with the most economic and practical value and relatively low heat conductivity coefficient of the existing heat insulation materials are micro-foam polymers, such as polystyrene foam, polyurethane foam and the like.
There are two general methods used today to coat foamed insulation outside similar large objects, assembly after molding and manual spraying in the field. The former method is only suitable for large-scale batch production due to the mold relationship, and the finished product quality of the latter method is not guaranteed and the efficiency is low. In addition, since the foaming material is mostly a low-strength material, a reinforcing means is required to make good connection with the tank body, and therefore, both the above methods necessarily require additional structural reinforcement, which increases disadvantages in terms of manufacturing and weight reduction. The present invention has been made to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a device and a method for coating a fiber reinforced foam heat insulation layer outside a large-scale rotating body, which are used for solving the problems that the field manual foaming quality cannot be ensured, a forming module is not suitable for small-batch production, and the existing method needs to additionally increase structural member reinforcement in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the device for coating the fiber reinforced foam heat insulation layer outside the large rotating body comprises a running device and a single-sided coiled or fluffed sparse fabric, wherein the running device comprises a support and a rotatable clamping mechanism arranged on the support, a tank body is clamped on the clamping mechanism, a guide rail is horizontally arranged on one side of the support, a working mechanism is slidably arranged on the guide rail, a mold and a spray gun are arranged on the working mechanism, one side of the mold is provided with a rotating curved surface parallel to the surface of the tank body and with a curvature radius larger than that of the tank body by a fixed value, a foaming cavity and a heat curing cavity are formed between the rotating curved surface of the mold and the tank body, the foaming cavity and the heat curing cavity are arranged up and down, and the spray gun is arranged at the top end of the foaming cavity.
Preferably, through holes for forming positive pressure and negative pressure are formed in the surfaces of the foaming cavity and the heat curing cavity of the mold, and the residual surface of the heat curing cavity around the through holes is a far infrared heating body.
Preferably, the bracket is connected with the clamping mechanism through a connecting rod, a motor is arranged at the joint of the connecting rod and the clamping mechanism, and an output shaft of the motor is connected with the clamping mechanism.
Preferably, the rotation surface of the mold has the same rotation axis as the can, and the vertical distance from the rotation axis of the can to the rotation surface of the mold is equal everywhere.
Preferably, the upper edge and the lower edge of the rotating curved surface of the mold are arranged along the warp of the tank body, the rotating curved surface of the mold is provided with two groups of detachable second baffles along the weft of the tank body, and the rotating curved surface of the mold is positioned at the lower edge of the foaming cavity and is provided with a first baffle.
Preferably, the single-sided looped or napped sparse fabric is placed between the tank and the mold.
Preferably, a method for coating a fiber reinforced foamed heat insulating layer outside a large rotating body comprises the steps of coating the fiber reinforced foamed heat insulating layer outside the large rotating body by using a running device:
s1, placing a single-sided coiled sparse fabric between a tank body and a mold, enabling one side with coils or raised faces to face the tank body to be coated, rotating one side of the tank body to a rotating curved surface of the mold and then fixing, wherein through holes in a forming cavity of the mold are in a negative pressure state, so that the single-sided coiled or raised sparse fabric is pushed by atmospheric pressure to be attached to a foaming cavity with an open upper end formed by the surface of the mold and the surface of the tank body;
s2, filling foaming materials into the foaming cavity by the spray gun, changing the through holes in the forming cavity of the die into a positive pressure state after the foaming materials are primarily solidified, and removing a next baffle plate;
and S3, rotating the tank body of the fiber reinforced foam heat insulation layer to be coated, wherein the rotating distance is equal to the arc length of a molding cavity of the mold, enabling the section of arc length of the tank body, which is filled with foam materials, to enter a heat curing cavity of the mold, performing far infrared irradiation heating curing, simultaneously, taking the sparse fabric with a single coil or napped fabric along with rotation, turning the mold of the molding cavity of the mold into negative pressure after stopping rotating, pushing the fabric to be attached to the surface of the mold and the surface of the tank body by atmospheric pressure, repeatedly filling the foam materials, drying the surface of the foam materials, turning through holes of the molding cavity of the mold and the heat curing cavity of the mold into positive pressure, rotating the tank body of the fiber reinforced foam heat insulation layer to be coated to be equal to the arc length of the molding cavity of the mold, and circulating the process until the arc length is close to a perimeter, and making the rest section of arc length be manually made up.
Preferably, the working mechanism can move the width of one mold along the guide rail after the coating of the fiber reinforced foamed heat insulation layer of one circumference is completed, and the processes of S1, S2 and S3 are repeated.
The invention provides a device and a method for coating a fiber reinforced foam heat insulation layer outside a large rotating body, which have the following beneficial effects:
in the invention, as the pouring is carried out in a fixed cavity, the solidification is completed in a constant temperature environment, and the foaming quality is fully ensured. Meanwhile, a layer of fabric is fixed on the surface of the finally formed foaming layer, and the coil of the fabric plays a role in hooking in the foam material, so that a composite body is formed by the fabric and the foam, the fabric and the coil play a role in enhancing the foam, the overall strength is greatly improved, and the method for coating the fiber-reinforced foaming heat insulation layer outside the rotating body has high working efficiency and ensures the quality.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the second baffle plate after being disassembled;
fig. 3 is a schematic rear view of the present invention.
In the figure: 1. a bracket; 2. a connecting rod; 3. a clamping mechanism; 4. a tank body; 5. a spray gun; 6. a foaming cavity; 7. a first baffle; 8. a mold; 9. a guide rail; 10. a through hole; 11. a thermally curing cavity; 12. a second baffle; 13. a far infrared heating element; 14. and a motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-3, the present invention provides a technical solution: the device and the method are characterized by comprising a running device and a single-sided coiled or fluffed sparse fabric, wherein the running device comprises a support 1 and a rotatable clamping mechanism 3 arranged on the support 1, a tank body 4 is clamped on the clamping mechanism 3, a guide rail 9 is horizontally arranged on one side of the support 1, a working mechanism is slidably arranged on the guide rail 9, a die 8 and a spray gun 5 are arranged on the working mechanism, a rotating curved surface which is parallel to the surface of the tank body 4 and has a curvature radius larger than that of the tank body 4 by a fixed value is arranged on one side of the die 8, a foaming cavity 6 and a heat curing cavity 11 are formed between the rotating curved surface of the die 8 and the tank body 4, the foaming cavity 6 and the heat curing cavity 11 are arranged up and down, and the spray gun 5 is arranged on the top end of the foaming cavity 6.
The surfaces of the mold 8, which are positioned on the foaming cavity 6 and the heat curing cavity 11, are respectively provided with a through hole 10 for forming positive pressure and negative pressure, the rest surface of the heat curing cavity 11, which is positioned around the through holes 10, is provided with a far infrared heating body 13, and the positive and negative pressures generated by the through holes 10 are utilized to absorb single-sided coiled or napped sparse fabrics; the bracket 1 is connected with the clamping mechanism 3 through a connecting rod 2, a motor 14 is arranged at the joint of the connecting rod 2 and the clamping mechanism 3, an output shaft of the motor 14 is connected with the clamping mechanism 3, and the clamping mechanism 3 is driven to perform rotary motion by the motor 14; the rotating curved surface of the die 8 is provided with a rotating shaft which is the same as the tank body 4, and the vertical distance from the rotating shaft of the tank body 4 to the rotating curved surface of the die 8 is equal everywhere, so that the tank body 4 is wrapped in the rotating process of the die 8; the upper edge and the lower edge of the rotating curved surface of the die 8 are arranged along the warp of the tank body 4, the rotating curved surface of the die 8 is provided with two groups of detachable second baffle plates 12 along the weft of the tank body 4, the rotating curved surface of the die 8 is positioned at the lower edge of the foaming cavity 6 and is provided with a first baffle plate 7, the first baffle plate 7 and the second baffle plate 12 are utilized to form a sealed cavity, the sparse fabric with single-sided coil or napping is arranged between the tank body 4 and the die 8, and is arranged between the tank body 4 and the die 8 so as to be convenient for wrapping the surface of the tank body 4.
When the device works, the tank body 4 to be processed is arranged on the bracket 1 by the clamping mechanism 3, a special single-sided coiled or fluffed sparse fabric is laid in the foaming cavity 6 before foaming materials are poured, one side with the coil or the fluffed surface faces the tank body 4 to be coated, one end of the tank body is fixedly connected with the bottom of the foaming cavity 6 by the coated tank body 4, then the curved surface through hole 10 of the foaming cavity 6 is made to be negative pressure, after the single-sided coiled or fluffed sparse fabric is pushed by atmospheric pressure to be adsorbed on the curved surface of the foaming cavity 6 to be stable and smooth, then the foaming materials are fully filled in the foaming cavity 6 by the spray gun 5 to be leveled to the upper edge, the foaming materials are primarily solidified, the through hole 10 in the forming cavity of the die 8 is changed into a positive pressure state, and the baffle 7 of the next number is removed; the tank body 4 to be coated with the fiber reinforced foam heat insulation layer is rotated, the rotation distance is equivalent to the arc length of a molding cavity of the mold 8, the arc length of the section of the tank body 4 filled with foam material enters a heat curing cavity 11 of the mold 8, far infrared irradiation heating curing is carried out, meanwhile, the sparse fabric with a single coil or napped is also brought along with rotation, the mold 8 of the molding cavity of the mold 8 is converted into negative pressure after stopping rotating, the fabric is pushed by atmospheric pressure to be attached to the surface of the mold 8 and the surface of the tank body 4 to form a new cavity, foam material is repeatedly filled, the surface of the foam material is dried, the molding cavity of the mold 8 and a through hole 10 of the heat curing cavity 11 of the mold 8 are converted into positive pressure, the tank body 4 of the fiber reinforced foam heat insulation layer to be coated is rotated to be equivalent to the arc length of a forming cavity of the tank body 8, the process is circulated until the arc length is close to a circumference, the rest arc length is manually compensated, the working mechanism can move along the guide rail 9 by the width of the tank body 8 after the fiber reinforced foam heat insulation layer coating of the circumference is completed, and the processes of S1, S2 and S3 are repeated, wherein the rotating curved surface of the tank body 8 is the same as the tank body 4 to be processed and has a rotating curved surface similar to the tank body 4 to be processed, but the rotating radius is larger than the tank body by a fixed value, and the fixed value depends on the design thickness of the foaming body.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The device for coating the fiber reinforced foam heat insulation layer outside the large rotating body is characterized by comprising a running device and a single-sided coiled or fluffed sparse fabric, wherein the running device comprises a bracket (1) and a rotatable clamping mechanism (3) arranged on the bracket (1), a tank body (4) is clamped on the clamping mechanism (3), a guide rail (9) is horizontally arranged on one side of the bracket (1), a working mechanism is slidably arranged on the guide rail (9), a mould (8) and a spray gun (5) are arranged on the working mechanism, a rotating curved surface which is parallel to the surface of the tank body (4) and has a curvature radius which is larger than the curvature radius of the tank body (4) by a certain value is arranged on one side of the mould (8), a foaming cavity (6) and a heat curing cavity (11) are formed between the rotating curved surface of the mould (8) and the tank body (4), the foaming cavity (6) and the heat curing cavity (11) are arranged up and down, and the spray gun (5) is arranged at the top end of the foaming cavity (6);
the surfaces of the mold (8) positioned in the foaming cavity (6) and the heat curing cavity (11) are provided with through holes (10) for forming positive pressure and negative pressure, and the rest surfaces of the heat curing cavity (11) positioned around the through holes (10) are far infrared heating elements (13);
the sparse fabric with single-sided loops or napping is arranged between the tank body (4) and the die (8);
the rotating surface of the die (8) is provided with a rotating shaft which is the same as that of the tank body (4), and the vertical distance from the rotating shaft of the tank body (4) to the rotating surface of the die (8) is equal everywhere;
the upper edge and the lower edge of the rotating curved surface of the die (8) are arranged along the warp of the tank body (4), the rotating curved surface of the die (8) is provided with two groups of detachable second baffle plates (12) along the weft of the tank body (4), and the rotating curved surface of the die (8) is positioned at the lower edge of the foaming cavity (6) and is provided with a first baffle plate (7).
2. The apparatus for coating a fiber-reinforced foamed heat insulating layer on a large rotating body according to claim 1, wherein: the support (1) is connected with the clamping mechanism (3) through a connecting rod (2), a motor (14) is arranged at the joint of the connecting rod (2) and the clamping mechanism (3), and an output shaft of the motor (14) is connected with the clamping mechanism (3).
3. A method of coating a fiber reinforced foamed insulation layer on a large rotating body using the apparatus of claim 1, characterized by: the method comprises the steps of coating a fiber reinforced foam heat insulation layer outside a large rotating body by using a running device:
s1, placing a single-sided coiled sparse fabric between a tank body (4) and a mold (8), enabling one side with coils or raised wool to face the tank body (4) to be coated, rotating one side of the tank body (4) to a rotating curved surface of the mold (8) and then fixing, wherein a through hole (10) in a forming cavity of the mold (8) is in a negative pressure state, so that the single-sided coiled or raised wool sparse fabric is pushed by atmospheric pressure to be attached to a foaming cavity (6) with an open upper end formed by the surface of the mold (8) and the surface of the tank body (4);
s2, filling foaming materials into the foaming cavity (6) by the spray gun (5), changing a through hole (10) in a forming cavity of the die (8) into a positive pressure state after the foaming materials are primarily solidified, and removing a next baffle plate (7);
and S3, rotating the tank body (4) to be coated with the fiber reinforced foam heat insulation layer, wherein the rotating distance is equal to the arc length of a forming cavity of the die (8), enabling the section of arc length of the tank body (4) filled with foam material to enter a heat curing cavity (11) of the die (8), performing far infrared irradiation heating curing, simultaneously bringing sparse fabric with a coil or napping on one side into rotation, enabling the die (8) of the forming cavity of the die (8) to be converted into negative pressure after stopping rotating, enabling the fabric to be pushed by atmospheric pressure to be attached to the surface of the die (8) and the surface of the tank body (4) to form a new cavity, repeatedly filling foam material, enabling a through hole (10) of the forming cavity of the die (8) and a heat curing cavity (11) of the die (8) to be converted into positive pressure, rotating the tank body (4) to be equal to the arc length of the forming cavity of the die (8), and circulating the process until the rest section of arc length is approximately equal to one circumference, and manually making up for the rest section of arc length.
4. A method of coating a fiber reinforced foamed insulation layer over a large rotating body according to claim 3, wherein: after the coating of the fiber reinforced foam heat insulation layer with one circumference is completed, the working mechanism can move the width of one mold (8) along the guide rail (9), and the processes of S1, S2 and S3 are repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910384754.4A CN110181743B (en) | 2019-05-09 | 2019-05-09 | Device and method for coating fiber reinforced foam heat insulation layer outside large-sized rotating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910384754.4A CN110181743B (en) | 2019-05-09 | 2019-05-09 | Device and method for coating fiber reinforced foam heat insulation layer outside large-sized rotating body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110181743A CN110181743A (en) | 2019-08-30 |
| CN110181743B true CN110181743B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910384754.4A Active CN110181743B (en) | 2019-05-09 | 2019-05-09 | Device and method for coating fiber reinforced foam heat insulation layer outside large-sized rotating body |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE824588A (en) * | 1974-01-24 | 1975-07-22 | THERMALLY INSULATED WALL STRUCTURE OF WATERPROOF TANK AND ITS CONSTRUCTION PROCESS | |
| JPS5686729A (en) * | 1979-12-18 | 1981-07-14 | Kubota Ltd | Preparation of heat insulating pipe |
| CN1246590A (en) * | 1998-07-24 | 2000-03-08 | 气体运输技术公司 | Improved of sealed adiabatic cabinet containing precast slab |
| JP2004143681A (en) * | 2002-10-22 | 2004-05-20 | Osaka Gas Co Ltd | Thermal insulation construction method for wall surface of low-temperature tank |
| JP2015040049A (en) * | 2013-08-21 | 2015-03-02 | 東洋ゴム工業株式会社 | Surface layer construction device for wall surface |
| CN106794607A (en) * | 2014-09-04 | 2017-05-31 | 布鲁格管道控股股份公司 | Method and its application for manufacturing composite component |
| CN109532057A (en) * | 2017-09-21 | 2019-03-29 | 丰田自动车株式会社 | Manufacturing method and manufacturing equipment for pressurized tank |
| CN208681935U (en) * | 2018-08-06 | 2019-04-02 | 张家港市顾乐仕生活家居科技有限公司 | A kind of foaming pillow production mould of negative pressure pad pasting |
| CN209869235U (en) * | 2019-05-09 | 2019-12-31 | 上海工程技术大学 | Device for coating fiber reinforced foaming heat insulation layer outside large rotating body |
-
2019
- 2019-05-09 CN CN201910384754.4A patent/CN110181743B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE824588A (en) * | 1974-01-24 | 1975-07-22 | THERMALLY INSULATED WALL STRUCTURE OF WATERPROOF TANK AND ITS CONSTRUCTION PROCESS | |
| JPS5686729A (en) * | 1979-12-18 | 1981-07-14 | Kubota Ltd | Preparation of heat insulating pipe |
| CN1246590A (en) * | 1998-07-24 | 2000-03-08 | 气体运输技术公司 | Improved of sealed adiabatic cabinet containing precast slab |
| JP2004143681A (en) * | 2002-10-22 | 2004-05-20 | Osaka Gas Co Ltd | Thermal insulation construction method for wall surface of low-temperature tank |
| JP2015040049A (en) * | 2013-08-21 | 2015-03-02 | 東洋ゴム工業株式会社 | Surface layer construction device for wall surface |
| CN106794607A (en) * | 2014-09-04 | 2017-05-31 | 布鲁格管道控股股份公司 | Method and its application for manufacturing composite component |
| CN109532057A (en) * | 2017-09-21 | 2019-03-29 | 丰田自动车株式会社 | Manufacturing method and manufacturing equipment for pressurized tank |
| CN208681935U (en) * | 2018-08-06 | 2019-04-02 | 张家港市顾乐仕生活家居科技有限公司 | A kind of foaming pillow production mould of negative pressure pad pasting |
| CN209869235U (en) * | 2019-05-09 | 2019-12-31 | 上海工程技术大学 | Device for coating fiber reinforced foaming heat insulation layer outside large rotating body |
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| Publication number | Publication date |
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| CN110181743A (en) | 2019-08-30 |
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