CN106584883B - Underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure unit - Google Patents
Underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure unit Download PDFInfo
- Publication number
- CN106584883B CN106584883B CN201611114442.4A CN201611114442A CN106584883B CN 106584883 B CN106584883 B CN 106584883B CN 201611114442 A CN201611114442 A CN 201611114442A CN 106584883 B CN106584883 B CN 106584883B
- Authority
- CN
- China
- Prior art keywords
- surface layer
- fiber
- crashworthiness
- core
- underwater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/70—Completely encapsulating inserts
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
Abstract
The present invention provides a kind of underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure units, surface layer and internal buoyance core material are wound including fiber, it is characterized by: fiber winding surface layer is coated on internal buoyance core surfaces, the thickness that fiber winds surface layer is less than internal buoyance core material size；Internal buoyance core material is elliposoidal, and the material of internal buoyance core material includes deep-sea buoyant material；The material that fiber winds surface layer includes fiber-resin matrix, using tension wet winding technology, one-step solidification moulding under normal temperature conditions.The present invention is while meeting Impact on Shielding Structure Underwater crashworthiness energy-absorbing requirement, moreover it is possible to provide certain reserve buoyancy for structure platform, solve the contradictory problems that submerged structure crashworthiness protective performance requires and structure platform design weight limits.
Description
Technical field
The present invention relates to fiber-reinforced resin matrix compound material solid core structural applications, and in particular to a kind of underwater lightweight
Buoyancy compensation type composite material solid core crashworthiness endergonic structure unit.
Background technique
Composite material has many advantages, such as that specific strength is high, specific stiffness is big, and designability stronger than energy-absorbing is good, in structural shielding
Engineering field has obtained increasingly extensive concern.However in some special or extreme use environment, not only need to protect
Structure has excellent energy absorption characteristics, and to have preferable environmental suitability and other properties.As submerged structure is flat
The design of crashworthiness safeguard structure, not only proposes high requirement to the crashworthiness protective performance of safeguard structure between the non-pressure-resistant side of a ship of platform, and
And safeguard structure is needed to provide certain reserve buoyancy for submerged structure platform.
Summary of the invention
In view of the above technical problems, the present invention proposes and devises a kind of novel underwater lightweight buoyancy offset-type composite wood
Expect solid core crashworthiness endergonic structure unit, not only meets the Functional Requirement of submerged structure platform crashworthiness safeguard structure, Er Qieneng
Certain reserve buoyancy is enough provided for submerged structure platform.
The present invention provides a kind of underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure units, including fibre
Dimension winding surface layer and internal buoyance core material, it is characterised in that: fiber winding surface layer is coated on internal buoyance core surfaces, and fiber twines
Thickness around surface layer is less than internal buoyance core material diameter；
Internal buoyance core material is elliposoidal, and the material of internal buoyance core material includes deep-sea buoyant material；
The material that fiber winds surface layer includes fiber-resin matrix, using tension wet winding technology, under normal temperature conditions
One-step solidification moulding.
Preferably, fiber winding surface layer completely coats internal buoyance core material and forms solid core crashworthiness endergonic structure unit.
Preferably, the fiber system of fiber winding surface layer institute type selecting includes glass fibre and aramid fiber.
Preferably, resin matrix uses high-performance low water absorbable resin, including polyester resin and vinyl ester resin, fiber
Resin quality is 0.7 ~ 1.2 than content range.
Preferably, the density range of internal buoyance core material the selection of material is the kg/m3 of 300 kg/m3 ~ 600, the resistance to pressure of hydrostatic
Degree is 5MPa ~ 30MPa, and dynamic yield strength is 50 ~ 100MPa, and linear elasticity range of strain is 0 ~ 0.1, and plasticity section range of strain is
0.1~0.6。
Preferably, the follow-up phase of internal buoyance core material is dense compaction section.
Preferably, fiber winding surface layer uses and is based on structural mechanical property and wet winding technology technique.
Preferably, the winding angle range on fiber winding surface layer is 15o ~ 45o, winding thickness and ellipsoid minor axis length ratio
The range of value T/B is 0.01 ~ 0.06, and Tension design range is 5N ~ 30N.
Preferably, internal buoyance core material cell height and the range of upper and lower end face diameter ratio H/2E are 1.2 ~ 2.1, ellipsoid
Molded line long axis and short axle ratio A/B range are 1.6 ~ 1.0.
The beneficial effects of the present invention are: structure is simple, and fiber winding surface layer, which is glued, is coated on internal core surfaces, fiber
It winds surface layer and internal buoyance core material one-step solidification moulding is composite material solid core endergonic structure unit.Internal core material selects lightweight
Deep-sea high intensity buoyant material and optimization design are elliposoidal geometry molded line feature, guarantee composite material solid core crashworthiness endergonic structure
The steady state compaction energy absorbing efficiency of unit and the realizability of surface layer wet winding technology technique.Fiber winds surface layer and selects ocean ring
Border adapts to fiber type and resin system and optimizes fibre resin mass ratio, to reach optimal technological forming quality and compound interface
Performance.Fiber winds surface layer and uses tension wet winding technology technique, is wound into internal float using optimization winding pattern and thickness
Power core material optimized model line surface, to reach optimal constraint bearing capacity and energy absorption efficiency.Fiber winding surface layer and
There is internal buoyance core material one-step solidification moulding under normal temperature conditions preferable technique to prepare characteristic, guarantee composite material solid core
The integrality of crashworthiness endergonic structure unit.
Detailed description of the invention
Fig. 1 is structure of the invention schematic three dimensional views.
Wherein, 1- fiber winds surface layer, 2- internal buoyance core material.
Fig. 2 is structure of the invention section size parameter schematic diagram.
H- core material height, R- semiminor axis of ellipsoid length, T- skin layer composite material thickness, the end face E- radius.
Fig. 3 to Fig. 8 is two layers of winding scenario detailed process of structure of the invention skin layer composite material.
Specific embodiment
The invention will be further described with specific embodiment with reference to the accompanying drawings of the specification:
The present invention provides a kind of underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure units, including fibre
Dimension winding surface layer 1 and internal buoyance core material 2, fiber winding surface layer 1 are coated on internal buoyance core using wet winding technology technique
2 surface of material, fiber wind the diameter that skin depth 1 is much smaller than internal buoyance core material 2, and internal buoyance core material 2 selects high-strength light
Spending deep-sea buoyant material and requiring optimization design according to structural mechanical property is different elliposoidal geometry molded line features, deep-sea buoyancy
The glass microballoon size of material and of different sizes, matrix resin type is different, and buoyant material mechanical property difference after molding is very
Greatly, what the present invention protected is the specific buoyant material type of specific small range proportion.Fiber winds surface layer 1 and selects marine environment suitable
Answer type fiberized resin system and according to surface layer mechanical property optimize fibre resin mass ratio, moulding process using tension Wet Winding Process at
Type technique is wound into 2 surface of internal buoyance core material after molded line optimization based on the achievable optimization winding pattern of technique and thickness,
Fiber winds surface layer 1 and internal buoyance core material 2 one-step solidification moulding under normal temperature conditions, and it is resistance to form complete composite material solid core
Hit endergonic structure unit.The mechanical property and scope of application difference of different fibers and resin, what the present invention protected is specific seawater
With the fibre resin type selecting of special mechanical property under environment.
As a preferred mode, fiber winding surface layer 1 is completely coated on internal float using wet winding technology technique
2 surface of power core material forms solid core crashworthiness endergonic structure unit, and integrated curing molding ensures that solid core crashworthiness is inhaled under normal temperature conditions
The globality of energy structural unit.It is to be glued connection, wet process that fiber, which winds the compound interface between surface layer 1 and internal buoyance core material 2,
Winding plus Tension design and integrated cure process ensure the compound interface between fiber winding surface layer 1 and internal buoyance core material 2
Performance is intact.
As a preferred mode, the fibre resin system of fiber winding 1 type selecting of surface layer, including glass fibre and ethylene
Base ester resin matrix all has good mechanical property and seawater corrosion resistance characteristic, and fibre resin circle after composite curing molding
Face is functional, and fibre resin mass ratio is optimal by proportion optimizing.Internal buoyance core material 2 selects hollow glass microbead to fill out
The solid buoyancy material of vinyl ester-series is filled, mechanical property and the compatible matching for winding surface layer 1 with fiber are preferable, into one
Step enhances the compound interface performance between fiber winding surface layer 1 and internal buoyance core material 2.
As a preferred mode, fiber winding surface layer 1 is using based on structural mechanical property and wet winding technology work
The achievable winding pattern prioritization scheme of skill, including winding angle, winding thickness and winding tension.Internal buoyance core material 2 uses
The elliposoidal geometry molded line feature obtained based on structural mechanical property and fiber winding 1 matching properties optimization design of surface layer.
Embodiment one
Fiber winding 1 fibre resin system of surface layer is respectively the E- glass of the T910 model of Mount Taishan glass fibre company production
The 430LV that fiber and Nanjing Nanjing Royal DSM company produce epoxy-modified vinyl ester resin, internal buoyance core material 2 are Hubei
The HW50 type lightweight deep-sea solid buoyancy material of Xianning Hai Wei composite material Co., Ltd production.Before production first on numerically controlled lathe
The elliposoidal geometricshape of internal buoyance core material 2 is processed, cell height and upper and lower end face diameter ratio H/2E are 2.1, ellipsoid
Molded line long axis and short axle ratio A/B are 1.6, and winding thickness and ellipsoid minor axis length ratio T/B are 0.013.Before Wrapping formed
Need to carry out the preparation of resin material, the quality of vinyl ester resin, methyl ethyl ketone peroxide curing agent and cobalt naphthenate promotor
Proportion is 100:2:1, and the normal temperature cure time is 4 hours.Fiber winds surface layer 1 and uses spiral winding line style, winding layer number one
Layer, winding angle are 25 degree, and the fibre resin mass ratio on the fiber winding surface layer 1 after final curing molding is about 1:1, winding layer
Overall thickness T is 1mm.Molding can be fully cured by 4 hours under normal temperature environment in sample after the completion of winding.
Embodiment two
Fiber winds surface layer 1 and 2 selected materials system of internal buoyance core material is same as Example 1.First in numerical control before production
The elliposoidal geometricshape of internal buoyance core material 2 is processed on lathe, cell height is with upper and lower end face diameter ratio H/2E
1.6, spheroid shape wire length axis and short axle ratio A/B are 1.2, and winding thickness and ellipsoid minor axis length ratio T/B are 0.023.Resin
Match same as Example 1, fiber winds surface layer 1 and uses spiral winding line style, and the winding angle of first layer is 20 degree, the second layer
Winding carries out reaming, and winding angle expands as 29 degree, the fibre resin mass ratio on the fiber winding surface layer 1 after final curing molding
About 1:1, winding layer overall thickness T are 2mm.Sample after the completion of winding can be fully cured under normal temperature environment by 4 hours
Molding.
Embodiment three
Fiber winds surface layer 1 and 2 selected materials system of internal buoyance core material is same as Example 1.First in numerical control before production
The elliposoidal geometricshape of internal buoyance core material 2, the model of cell height and upper and lower end face diameter ratio H/2E are processed on lathe
Enclosing is 1.3, and spheroid shape wire length axis and short axle ratio A/B range are 1.0, winds thickness with ellipsoid minor axis length ratio T/B and is
0.030.Resin proportion is same as Example 1, and fiber winds surface layer 1 and uses spiral winding line style, and the winding angle of first layer is
18 degree, second layer winding carries out reaming and winding angle expands as 21 degree, and third layer winds further reaming and winding angle expands
Greatly to 25 degree, the fibre resin mass ratio on the fiber winding surface layer after final curing molding is about 1:1, and winding layer overall thickness T is
3mm.Molding can be fully cured by 4 hours under normal temperature environment in sample after the completion of winding.
Claims (6)
1. a kind of underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure unit, including fiber winding surface layer (1)
With internal buoyance core material (2), it is characterised in that: fiber winding surface layer (1) is coated on internal buoyance core material (2) surface, institute
The thickness for stating fiber winding surface layer (1) is less than internal buoyance core material (2) diameter；
The internal buoyance core material (2) is elliposoidal, and the material of the internal buoyance core material (2) includes deep-sea buoyant material；Institute
The material for stating fiber winding surface layer (1) includes fiber-resin matrix, using tension wet winding technology, under normal temperature conditions once
Curing molding；
The density range of internal buoyance core material (2) the selection of material is 300kg/m3~600kg/m3, hydrostatic compressive resistance is 5
~30MPa, dynamic yield strength be 50~100MPa, linear elasticity range of strain be 0~0.1, plasticity section range of strain be 0.1~
0.6；
Internal buoyance core material (2) cell height and the range of upper and lower end face diameter ratio H/2E are 1.2~2.1, ellipsoid
Long axis and short axle ratio A/B range are 1.6~1.0.
2. underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure unit according to claim 1, special
Sign is: completely cladding internal buoyance core material (2) forms solid core crashworthiness endergonic structure unit to fiber winding surface layer (1).
3. underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure unit according to claim 1, special
Sign is: fiber system selected by fiber winding surface layer (1) includes glass fibre and aramid fiber.
4. underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure unit according to claim 3, special
Sign is: resin matrix used in fiber winding surface layer uses high-performance low water absorbable resin, including polyester resin and
Vinyl ester resin, fibre resin quality are 0.7~1.2 than content range.
5. underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure unit according to claim 1, special
Sign is: fiber winding surface layer (1) is using based on structural mechanical property and wet winding technology technique.
6. underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure unit according to claim 1, special
Sign is: the winding angle range of fiber winding surface layer (1) is 15 °~45 °, winding thickness and ellipsoid minor axis length ratio
The range of T/B is 0.01~0.06, and Tension design range is 5N~30N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611114442.4A CN106584883B (en) | 2016-12-07 | 2016-12-07 | Underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611114442.4A CN106584883B (en) | 2016-12-07 | 2016-12-07 | Underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106584883A CN106584883A (en) | 2017-04-26 |
| CN106584883B true CN106584883B (en) | 2019-06-18 |
Family
ID=58596695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611114442.4A Expired - Fee Related CN106584883B (en) | 2016-12-07 | 2016-12-07 | Underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106584883B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691469B (en) * | 2020-04-20 | 2021-11-23 | 浙江大学 | Expanded underwater protection structure and deployment and detection method |
| CN111497351A (en) * | 2020-05-19 | 2020-08-07 | 西湖大学 | Sandwich composite pressure-resistant shell and application thereof |
| CN113442485A (en) * | 2021-05-28 | 2021-09-28 | 西湖大学 | High-performance beam column structure and manufacturing method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05222711A (en) * | 1992-02-10 | 1993-08-31 | Unyusho Daisan Kowan Kensetsu Kyokucho | Floating body type cushioning device and assembling method for floating type frame body |
| CN101145412A (en) * | 2007-10-12 | 2008-03-19 | 中利科技集团股份有限公司 | Buoyancy cable |
| CN101638887A (en) * | 2009-08-21 | 2010-02-03 | 盘锦新永成塑胶有限公司 | Foamed hollow plastic fender product and production method and equipment |
| CN101985528A (en) * | 2010-11-19 | 2011-03-16 | 咸宁海威复合材料制品有限公司 | Deep sea pressure-resistant workable buoyancy material and production method thereof |
| CN103510491A (en) * | 2013-10-16 | 2014-01-15 | 江苏省宏远玻璃钢有限公司 | Composite-material energy-dissipation fender and manufacturing process of composite-material energy-dissipation fender |
| CN204185802U (en) * | 2014-09-28 | 2015-03-04 | 常州慧运复合材料有限公司 | Pier anticollision composite material bumper ring |
| CN204185822U (en) * | 2014-09-28 | 2015-03-04 | 常州慧运复合材料有限公司 | Reinforced composite material bumper ring |
| CN204185823U (en) * | 2014-09-28 | 2015-03-04 | 常州慧运复合材料有限公司 | Composite pier buffer |
| CN105599889A (en) * | 2016-01-12 | 2016-05-25 | 中国人民解放军海军工程大学 | Solid composite rudder blade high in rigidity and low in weight |
| CN106079474A (en) * | 2016-06-12 | 2016-11-09 | 中国船舶重工集团公司第七○二研究所 | A kind of naval vessel composite propeller blade preform and preparation method thereof |
-
2016
- 2016-12-07 CN CN201611114442.4A patent/CN106584883B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05222711A (en) * | 1992-02-10 | 1993-08-31 | Unyusho Daisan Kowan Kensetsu Kyokucho | Floating body type cushioning device and assembling method for floating type frame body |
| CN101145412A (en) * | 2007-10-12 | 2008-03-19 | 中利科技集团股份有限公司 | Buoyancy cable |
| CN101638887A (en) * | 2009-08-21 | 2010-02-03 | 盘锦新永成塑胶有限公司 | Foamed hollow plastic fender product and production method and equipment |
| CN101985528A (en) * | 2010-11-19 | 2011-03-16 | 咸宁海威复合材料制品有限公司 | Deep sea pressure-resistant workable buoyancy material and production method thereof |
| CN103510491A (en) * | 2013-10-16 | 2014-01-15 | 江苏省宏远玻璃钢有限公司 | Composite-material energy-dissipation fender and manufacturing process of composite-material energy-dissipation fender |
| CN204185802U (en) * | 2014-09-28 | 2015-03-04 | 常州慧运复合材料有限公司 | Pier anticollision composite material bumper ring |
| CN204185822U (en) * | 2014-09-28 | 2015-03-04 | 常州慧运复合材料有限公司 | Reinforced composite material bumper ring |
| CN204185823U (en) * | 2014-09-28 | 2015-03-04 | 常州慧运复合材料有限公司 | Composite pier buffer |
| CN105599889A (en) * | 2016-01-12 | 2016-05-25 | 中国人民解放军海军工程大学 | Solid composite rudder blade high in rigidity and low in weight |
| CN106079474A (en) * | 2016-06-12 | 2016-11-09 | 中国船舶重工集团公司第七○二研究所 | A kind of naval vessel composite propeller blade preform and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106584883A (en) | 2017-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106853708B (en) | Buoyancy compensation type crashworthiness energy-absorbing composite material by multilayer array configuration module | |
| CN106584883B (en) | Underwater lightweight buoyancy offset-type composite material solid core crashworthiness endergonic structure unit | |
| CN105542219B (en) | A kind of preparation method of high-strength light composite hollow ball | |
| CN104743087B (en) | A kind of ship D braided composites propeller blade and preparation method thereof | |
| CN203528747U (en) | Pressure-resistant shell made of composite materials | |
| CN103482014A (en) | Composite pressure-resistant casing and molding method thereof | |
| CN109941408B (en) | Carbon fiber composite material deep diving pressure-resistant cabin and preparation method thereof | |
| CN106143789B (en) | A kind of submarine pressure hull and preparation method thereof | |
| CN106903948A (en) | A kind of strain monitoring two dimension wound composite submarine navigation device housing and preparation method thereof | |
| CN204955554U (en) | Synthetic foamed material of gradient structure | |
| CN115124750B (en) | Composite material for underwater drag reduction and manufacturing method thereof | |
| Hinves et al. | The development of a hybrid advanced composite-syntactic foam structural component for use in undersea vehicles | |
| CN103526977B (en) | A kind of fiber glass reinforced plastic chimney | |
| CN203514930U (en) | Medium-thickness glass fiber reinforced plastic chimney | |
| CN203514926U (en) | Glass fiber reinforced plastic chimney with novel structure and chimney | |
| CN203514925U (en) | Glass fiber reinforced plastic chimney | |
| CN106147135A (en) | One naval vessel many material composite-types carbon fiber Sound insulation floorings and preparation method | |
| RU180305U1 (en) | FIBER PREPARATIONS FOR THE PRODUCTION OF STRUCTURAL ELEMENTS OF PRODUCTS | |
| CN203514929U (en) | Large-thickness glass fiber reinforced plastic chimney and chimney comprising same | |
| CN203514927U (en) | Glass-fiber reinforced plastic strengthened part tubular wall structure and chimney with same | |
| CN203583979U (en) | Glass steel barrel wall structure and chimney with same | |
| CN203514931U (en) | Small-thickness glass fiber reinforced plastic chimney and chimney | |
| CN108437305A (en) | A kind of moulding process of high-performance thermal protection cork heterotypic material | |
| CN107215010B (en) | A kind of heat-insulation and heat-preservation honeycomb core material, preparation method and implantation tooling | |
| CN103526979B (en) | Thickness glass steel stack in one |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 Termination date: 20191207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |