CN115162621A - Thermoplastic composite material rib material and production method thereof - Google Patents
Thermoplastic composite material rib material and production method thereof Download PDFInfo
- Publication number
- CN115162621A CN115162621A CN202210841157.1A CN202210841157A CN115162621A CN 115162621 A CN115162621 A CN 115162621A CN 202210841157 A CN202210841157 A CN 202210841157A CN 115162621 A CN115162621 A CN 115162621A
- Authority
- CN
- China
- Prior art keywords
- rib
- temperature
- ribs
- composite material
- matrix
- 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.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0046—Producing rods
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Abstract
The invention relates to a thermoplastic composite material rib material and a production method thereof, comprising the following steps: polishing the round ribs; the rib is spirally arranged on the outer wall of the smooth circular rib; a plurality of connecting nails inserted into the smooth circular ribs along the rib tops to form the ribs; the invention has the following advantages: 1. the existence of the connecting nail greatly enhances the radial strength of the rib material, and solves the problems of debonding damage caused by only bonding the pure winding rib with the main body by the matrix and the reduction of bonding strength when bonding with concrete; 2. due to the coexistence of the surface pits and the diamond sand layer, the roughness of the surface of the reinforcement is further improved, and the bonding strength between the reinforcement and concrete is favorably improved; 3. the process is simple and can realize continuous production.
Description
Technical Field
The invention relates to a rib material, in particular to a thermoplastic composite rib material and a production method thereof.
Background
Since the invention of portland cement in 1824, concrete and reinforced concrete have quickly become the main civil engineering materials and have been widely used in various civil engineering. After world war II, the dosage of cement concrete is greatly increased along with the progress of concrete technology and the development of engineering construction. Concrete has become the largest building material in use and the widest application range. The concrete has high alkalinity, if normal materials suitable for specific environment are selected, careful design and construction are carried out, the concrete protective layer has compact structure and enough thickness, microcrack expansion is prevented in use, and the steel bar can be ensured to be in good condition for a long time and is not corroded. That is, reinforced concrete and prestressed concrete structures should be durable in general environments and even harsh marine environments. However, in fact, the carbonization of concrete, especially the chloride pollution (ocean, coastal engineering and road and bridge engineering spreading deicing salt) of structural concrete causes the corrosion of reinforcing steel bars, the expansion crack, the layer crack and the peeling damage of concrete along the reinforcing steel bars, and the carbonization becomes a main disaster threatening the durability of the concrete structure all over the world and China at present. The accidents of project failure, damage and damage caused by poor durability are frequent, so that the cost of project reinforcement, removal and the like is rapidly increased, and great economic loss is also caused, and related researches become the problem concerned by the project world. Among the many factors that affect the durability of reinforced concrete, the premature failure of concrete structures caused by the corrosion of steel reinforcement has become a common concern and a great disaster that is increasingly prominent all over the world.
With the development of materials and the progress of science and technology, fiber Reinforced Plastic (FRP) becomes a substitute product for reinforcing steel bars due to the characteristics of light weight, high strength, corrosion resistance, excellent fatigue resistance, strong designability and the like. The composite material reinforcing bar is adopted to replace the traditional reinforcing bar, so that the problem of insufficient structural durability caused by corrosion of the steel bar can be fundamentally solved, and the requirement of structural lightweight is met.
The composite material rib material is divided into a thermosetting composite material rib material and a thermoplastic composite material rib material, wherein the thermosetting composite material rib material is widely applied at present. However, the thermosetting composite material rib material cannot be deformed again after being formed, so that the thermosetting composite material rib material cannot be bent in actual use like the conventional steel bar, and can only be bent to produce a bent rib before being formed; meanwhile, the thermosetting composite material rib material is difficult to recycle, so that the application of the thermosetting composite material rib material is limited. The thermoplastic composite material rib material just overcomes the defects of the thermosetting composite material rib material and has good application prospect.
The literature data indicates that the bonding strength of the thermoplastic composite material reinforcement and the concrete mainly depends on mechanical engaging force and friction force. Therefore, to improve the bonding strength between the thermoplastic composite material rib and the concrete, the roughness of the surface of the rib should be improved on one hand, and the height of the rib should be improved on the other hand, and too high height of the rib may cause early damage of the rib, thereby reducing the bonding strength.
In summary, how to improve the roughness of the surface of the rib and the connection strength between the rib and the plain round rib, so as to improve the bonding strength with the concrete, is a problem that researchers in the field are urgently required to solve.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to improve the roughness of the surface of the rib material and the connection strength between the ribs and the smooth round ribs;
in order to solve the technical problems, the invention adopts the following technical scheme:
the invention is a thermoplastic composite reinforcement comprising: polishing the round ribs; the rib is spirally arranged on the outer wall of the smooth circular rib; a plurality of connecting nails inserted into the smooth circular ribs along the rib tops to form the ribs;
the traditional rib material is formed by connecting smooth round ribs with ribs by adopting a base body, the radial connection strength of the rib material is enhanced by adding connecting nails, and the problems of debonding damage caused by only bonding the pure winding type ribs with the smooth round ribs by the base body and reduction of bonding strength when the rib material is bonded with concrete are solved; in addition, increase the area of contact that connects the nail can increase with the concrete, improved muscle material and cohesive force.
In order to limit the insertion angle of the connecting nail, the included angle between the axis of the connecting nail and the axis of the smooth circular rib is 45-135 degrees;
the different insertion angles of connecting nail can lead to the fibre direction in the connecting nail and the angle nonconformity of the fibre direction of smooth circle muscle to when muscle material equidirectional atress, the ability of overcoming to rib destruction produces the difference. The vertical insertion pair is basically stressed in two axial directions; the stress is basically consistent if the insertion angles of the two adjacent connecting nails are symmetrical; but if the two directions are all positive or all negative, the difference between the two directions is large; therefore, when the connecting nail is inserted, the connecting nail is required to be perpendicular to the axial direction of the smooth circular rib, or the inserted angles of two adjacent connecting nails are symmetrically arranged.
In order to improve the roughness of the surface of the reinforcement and be beneficial to improving the bonding strength of the reinforcement and the concrete, the surface of the reinforcement is provided with a plurality of pits, and the surface of the reinforcement is sprayed with a carborundum layer.
To illustrate the production method of the bar, it comprises the following steps: manufacturing the smooth round ribs, the strips required by the ribs and the bars required by the connecting nails from a continuous unidirectional fiber reinforced thermoplastic composite material by a thermoplastic pultrusion process; cutting the bar into the length required by the connecting nail, and processing and polishing one end of the bar into a pointed end; step (3) spirally winding the strip material on the smooth round rib; step (4) under the condition of heating, inserting the connecting nails into the smooth round ribs from the tops of the ribs uniformly and quickly; step (5) under the condition of heating, applying pressure to the spiral rib so that the rib is completely attached to the smooth circular rib; and (6) heating the semi-finished product formed in the step (5) to completely melt the matrixes in the connecting nails, the ribs and the smooth round ribs, and cooling the matrixes to form a whole. Step (7) under the condition of heating, using an air needle to enable the surface of the rib material to form uniform pits; step (8) under the condition of heating, carrying out sand blasting on the surface of the rib material to enable a diamond sand layer to be embedded on the rib material; (9) cooling to obtain a final product;
in the step (2), the end part of the connecting nail is a pointed end, so that the connecting nail can be conveniently inserted into the smooth circular rib from the top of the rib, and in the step (4), the temperature of the connecting nail is lower than that of the smooth circular rib and the rib, so that the connecting nail is not deformed under the influence of temperature while being inserted into the smooth circular rib and the rib; in the step (7), the heating temperature is increased, so that the connecting nail, the smooth round rib and the rib are connected in a melting way.
Further, the reinforcing fiber in the composite material adopted in the step (1) is one or more of glass fiber, basalt fiber, carbon fiber and aramid fiber; the thermoplastic matrix material in the composite material adopted in the step (1) is polyethylene, polystyrene, polypropylene, polyamide, polyester, polycarbonate, polyimide, polyphenylene sulfide, polyether ether ketone or polyhexamethylene adipamide.
Further, the section of the strip is in a bilaterally symmetrical peak shape, and the width-to-height ratio of the strip is 0.25-5.0;
in this scheme, the higher the strip height is the better, can increase the contact nep with the concrete, guarantees the frictional force with the concrete.
Further, the length of the connecting nail is not less than the sum of the height of the strip and 1/4 of the diameter of the smooth circular rib and not more than the sum of the height of the strip and 3/4 of the diameter of the smooth circular rib;
in this way, the minimum length of the connecting pin is to ensure that the possible debonding damage between the rib and the smooth round rib can be overcome sufficiently, and the maximum length of the connecting pin is to prevent the possible splitting of the smooth round rib.
Further, in the step (4), when the connecting nail is inserted, the temperature of the smooth round ribs and the strip is not lower than the thermal deformation temperature of the composite material matrix and is not higher than the melting temperature of the composite material matrix plus 20 ℃; at the moment, the temperature of the connecting nail is not lower than room temperature and not higher than the thermal deformation temperature of the composite material substrate; in the step (5), when pressure is applied to the spiral ribs, the temperature of the semi-finished product is not lower than the melting temperature of the composite material matrix, namely minus 20 ℃ and not higher than the melting temperature of the composite material matrix plus 20 ℃; in the step (6), the heating temperature is not lower than the melting temperature of the composite material matrix and is not higher than the melting temperature of the composite material matrix plus 20 ℃; in the step (7), the heating temperature is not lower than the melting temperature of the composite material matrix and is not higher than the melting temperature of the composite material matrix plus 20 ℃; in the step (7), under the action of an air outlet needle head, the average diameter and the average depth of the pits generated on the surface of the rib material are not less than 0.5mm and not more than 2mm; in the step (8), the heating temperature is not lower than the melting temperature of the matrix and is not higher than the melting temperature of the matrix plus 20 ℃;
the average diameter and the average depth of the pits are not less than 0.5mm and not more than 2mm, if the diameter and the depth of the pits are too small, the roughness is low, and the bonding strength between the reinforcement material and the concrete is low; the strength of the rib main body is damaged by the excessively large diameter and depth.
The preferable temperature in the step (4) is that when the connecting nail is inserted, the temperature of the smooth round ribs and the strip is not lower than the heat deformation temperature of the composite material matrix plus 10 ℃ and is not higher than the melting temperature of the composite material matrix. At the moment, the temperature of the connecting nail is not lower than the thermal deformation temperature of the base body to 40 ℃ below zero and is not higher than the thermal deformation temperature of the material-combined base body to 20 ℃ below zero.
The number of the connecting nails in one thread pitch of the ribs is 4-thread pitch/diameter of the connecting nails, and the distance is uniform, so that the minimum number of the connecting nails is 4, the minimum number of the connecting nails is set to ensure that the connecting nails have good strength in each 90-degree direction, and the maximum number of the connecting nails is set to prevent the connecting nails from colliding with each other and causing operation difficulty due to over dense connecting nails.
Further, when the winding tension of the strip material in the step (3) is not less than 30% of the breaking strength of the strip material, no pressure can be applied to the ribs, thereby omitting the step (5);
and (3) under the condition that enough tension exists in the winding of the strip in the step (3), the connection between the smooth round ribs and the ribs can be realized, and the connection needs to be heated and melted.
Further, when the temperature of the semi-finished product in the step (5) is not lower than the melting temperature of the composite material matrix and is not higher than the melting temperature of the composite material matrix by +20 ℃, the step (6) can be omitted;
when the heating temperature of the lower limit of the step (5) is increased to the temperature of the step (6), the step (6) can be combined.
Further, the gold material is cooled by adopting a sectional cooling method in the step (9);
because the matrix material of thermoplastic composite muscle material is mostly crystalline form polymer, the rapid cooling can lead to the material crystallization too fast, and the crystallinity is low, produces stress concentration, leads to having the fracture risk. Therefore, staged cooling is employed.
Further, when the heating temperatures adopted in the steps (6), (7) and (8) are consistent, the steps (6), (7) and (8) are combined, the temperature of the step (6) needs to be kept for at least more than 10s, and the product is cooled after the steps (7) and (8) are finished;
when the heating temperatures in the adjusting step (6), the adjusting step (7) and the adjusting step (8) are consistent, only the step 6 needs to be kept warm for more than 10s, and the temperature needs to be immediately reduced after the steps 7 and 8 are finished, so that the produced pits and the protruded sand grains are prevented from leveling.
The invention has the beneficial effects that: the invention relates to a thermoplastic composite material rib material and a production method thereof, and the invention has the following advantages:
1. the connecting nail greatly enhances the radial strength of the rib material, and solves the problems of debonding damage caused by only bonding the matrix between the pure winding rib grains and the main body and the reduction of bonding strength when the rib grains are bonded with concrete.
2. The surface pits and the diamond sand layer exist together, so that the roughness of the surface of the reinforcement is further improved, and the bonding strength of the reinforcement and concrete is favorably improved.
3. The process is simple and can realize continuous production.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1-smooth round ribs, 2-ribs and 3-connecting nails.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example 1
As shown in figure 1, the glass fiber reinforced polypropylene composite material rib material, smooth round rib 1, rib 2, connecting nail 3 all use continuous unidirectional glass fiber and the matrix for the polypropylene material to adopt the thermoplastic pultrusion process to produce and form, smooth round rib 1 part diameter 20mm, rib 2 cross-section is about the peak shape of piling up, end width 4mm, height 2mm, rib 2 pitch 20mm, connecting nail 3 diameter 2.0mm, along smooth round rib 1 axial interval between connecting nail 3 for 2mm, connecting nail 3 length 12mm, surface pit average diameter about 0.8mm, average depth about 0.8mm, diamond sand layer average diameter about 0.8 mm. The connecting nail 3 is vertically inserted, namely the insertion angle is 0 degree, namely the fiber in the connecting nail 3 is vertical to the fiber in the smooth round rib 1.
The production process comprises the following steps:
(1) Manufacturing a smooth round rib 1 with the diameter of 20mm, a strip material with the peak-shaped bottom width of 4mm and the height of 2mm required by a rib 2 and a bar material with the diameter of 2.0mm required by a connecting nail 3 by a thermoplastic pultrusion process;
(2) The bar material is cut into short bars with the length of 12mm, one end of each short bar is machined and ground into a pointed end, and the length of each arrow is about 2mm.
(3) The strip material is spirally wound on the smooth circular rib 1, the thread pitch is 20mm, and the winding tension is 50% of the breaking tension of the strip material.
(4) Heating the smooth circular rib 1 for winding the strip to 155 +/-5 ℃, heating the connecting nails 3 to 80 +/-5 ℃, uniformly and quickly inserting the connecting nails 3 into the smooth circular rib 1 from the top of the rib 2, wherein the axial distance between the connecting nails 3 along the smooth circular rib 1 is 2mm.
(5) Heating the semi-finished product to 170 +/-5 ℃, and preserving the temperature for 20s.
(6) And (3) adjusting the pressure of compressed air, the inner diameter of a compressed air outlet needle tube, the distance between a compressed air outlet needle head and the semi-finished product, and the air injection time and interval by using an air needle at the temperature of 170 +/-5 ℃, so that the average diameter and the average depth of the generated pits are about 0.8 mm.
(7) And (3) carrying out sand blasting on the surface of the rib material at the temperature of 170 +/-5 ℃ so that a diamond sand layer is embedded on the rib material, wherein the average diameter of the diamond sand layer is about 0.8 mm.
(8) And cooling in sections to obtain the final product.
Example 2:
as shown in figure 1, the rib material of the carbon fiber reinforced nylon composite material, smooth round ribs 1, ribs 2 and connecting nails 3 are all produced by continuous unidirectional carbon fibers and a matrix which is a polyhexamethylene adipamide material by adopting a thermoplastic pultrusion process, the diameter of the part of the smooth round ribs 1 is 20mm, the cross section of the ribs 2 is in a peak shape formed by stacking left and right, the width of the bottom is 4mm, the height is 4mm, the pitch of the ribs 2 is 30mm, the diameter of the connecting nails 3 is 2.0mm, the axial distance between the connecting nails 3 along the smooth round ribs 1 is 3mm, the length of the connecting nails 3 is 15mm, the average diameter of surface pits is about 0.6mm, the average depth is about 0.6mm, and the average diameter of diamond sand layers is about 0.8 mm. The insertion angles of the adjacent connecting pins 3 are 15 degrees and-15 degrees respectively.
The production process comprises the following steps:
(1) Manufacturing a smooth round rib 1 with the diameter of 20mm, a strip material with the peak-shaped rib 2 with the width of 4mm and the height of 4mm and a bar material with the diameter of 2.0mm for the connecting nail 3 by a thermoplastic pultrusion process;
(2) The bar material is cut into short bars with the length of 15mm, one end of each short bar is machined and polished into a pointed end, and the length of each arrow is about 2mm.
(3) The strip material is spirally wound on the smooth circular rib 1, the thread pitch is 30mm, and the winding tension is 10% of the breaking tension of the strip material.
(4) Heating the smooth circular rib 1 for winding the strip to 240 +/-5 ℃, heating the connecting nails 3 to 100 +/-5 ℃, uniformly and quickly inserting the connecting nails 3 into the smooth circular rib 1 from the tops of the rib ribs 2, and enabling the axial distance of the connecting nails 3 along the smooth circular rib 1 to be 3mm.
(5) The semi-finished product is heated to 255 +/-5 ℃, and the ribs 2 and the smooth round ribs 1 are compacted under the condition that the semi-finished product moves forwards through rotation by using a pressure head basically consistent with the shape of the ribs 2.
(6) Heating the semi-finished product to 260 +/-5 ℃, and preserving heat for 20s.
(7) And (3) adjusting the pressure of compressed air, the inner diameter of a compressed air outlet needle tube, the distance between a compressed air outlet needle head and the semi-finished product, and the air injection time and interval by using an air needle at the temperature of 260 +/-5 ℃, so that the average diameter and the average depth of the generated pits are about 0.6 mm.
(8) And (3) carrying out sand blasting on the surface of the rib material at the temperature of 260 +/-5 ℃ so that a diamond sand layer is embedded on the rib material, wherein the average diameter of the diamond sand layer is about 0.8 mm.
(9) And cooling in sections to obtain the final product.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A thermoplastic composite rebar, comprising:
polishing the round ribs;
the rib grains are spirally arranged on the outer wall of the smooth circular rib;
a plurality of connecting nails inserted into the smooth circular ribs along the rib tops to form the rib material.
2. The thermoplastic composite rib material as claimed in claim 1, wherein the angle between the axis of the connecting nail and the axis of the smooth round rib is 45 ° to 135 °.
3. A thermoplastic composite reinforcement according to claim 1, wherein the surface of the reinforcement is provided with a plurality of dimples.
4. The thermoplastic composite rib material of claim 3, wherein a diamond sand layer is sprayed on the surface of the rib material.
5. A method for producing a thermoplastic composite tendon as claimed in any one of claims 1 to 4, comprising the steps of:
manufacturing the smooth round ribs, the strips required by the ribs and the bars required by the connecting nails from a continuous unidirectional fiber reinforced thermoplastic composite material by a thermoplastic pultrusion process;
cutting the bar into the length required by the connecting nail, and processing and polishing one end of the bar into a pointed end;
step (3) spirally winding the strip material on the smooth round rib;
step (4) under the condition of heating, inserting the connecting nails into the smooth round ribs from the tops of the ribs uniformly and quickly;
step (5) under the condition of heating, applying pressure to the spiral rib so as to enable the rib to be completely attached to the smooth circular rib;
and (6) heating the semi-finished product formed in the step (5) to completely melt the base bodies in the connecting nails, the rib grains and the smooth circular ribs, and cooling the base bodies to form a whole.
Step (7) under the condition of heating, using an air needle to enable the surface of the rib material to form uniform pits;
step (8) under the condition of heating, carrying out sand blasting on the surface of the rib material to enable a diamond sand layer to be embedded on the rib material;
(9) Cooling to obtain the final product.
6. The method for producing the thermoplastic composite rib material according to claim 5, wherein the reinforcing fiber in the composite material adopted in the step (1) is one or more of glass fiber, basalt fiber, carbon fiber and aramid fiber;
the thermoplastic matrix material in the composite material adopted in the step (1) is polyethylene, polystyrene, polypropylene, polyamide, polyester, polycarbonate, polyimide, polyphenylene sulfide, polyether ether ketone or polyhexamethylene adipamide;
the section of the strip is in a bilaterally symmetrical peak shape, and the width-to-height ratio of the strip is 0.25-5.0;
the length of the connecting nail is not less than the sum of the height of the strip material and 1/4 of the diameter of the smooth circular rib, and is not more than the sum of the height of the strip material and 3/4 of the diameter of the smooth circular rib;
the number of the connecting nails in one pitch of the ribs is 4-pitch/diameter of the connecting nails, and the intervals are uniform;
when the winding tension of the strip material in the step (3) is not less than 30% of the breaking strength of the strip material, no pressure can be applied to the ribs, thereby omitting the step (5).
7. The method for producing the thermoplastic composite rib material as claimed in claim 5, wherein in the step (4), the temperature of the smooth round rib and the strip material is not lower than the thermal deformation temperature of the composite material matrix and not higher than the melting temperature of the composite material matrix by +20 ℃ when the connecting nail is inserted;
at the moment, the temperature of the connecting nail is not lower than room temperature and not higher than the thermal deformation temperature of the composite material substrate;
in the step (5), when pressure is applied to the spiral ribs, the temperature of the semi-finished product is not lower than the melting temperature of the composite material matrix to 20 ℃ below zero and not higher than the melting temperature of the composite material matrix plus 20 ℃;
in the step (6), the heating temperature is not lower than the melting temperature of the composite material matrix and not higher than the melting temperature of the composite material matrix plus 20 ℃;
in the step (7), the heating temperature is not lower than the melting temperature of the composite material matrix and is not higher than the melting temperature of the composite material matrix plus 20 ℃;
in the step (7), under the action of an air outlet needle head, the average diameter and the average depth of the pits generated on the surface of the rib material are not less than 0.5mm and not more than 2mm;
in the step (8), the heating temperature is not lower than the melting temperature of the matrix and is not higher than the melting temperature of the matrix plus 20 ℃.
8. The method for producing a thermoplastic composite rib according to claim 7, wherein in the step (4), when the connecting nail is inserted, the temperature of the smooth circular rib and the strip is not lower than the heat distortion temperature +10 ℃ of the composite material matrix and not higher than the melting temperature of the composite material matrix.
At the moment, the temperature of the connecting nail is not lower than the thermal deformation temperature of the base body to 40 ℃ below zero and is not higher than the thermal deformation temperature of the material-combined base body to 20 ℃ below zero.
9. A method for producing a thermoplastic composite rib as claimed in claim 7, wherein the step (6) is omitted when the temperature of the semi-finished product in the step (5) is not lower than the melting temperature of the composite matrix and is not higher than the melting temperature of the composite matrix by +20 ℃.
10. A method for producing a thermoplastic composite rib according to claim 5, wherein the step (9) of cooling the gold material by a sectional cooling method;
and (5) when the heating temperatures adopted in the steps (6), (7) and (8) are consistent, combining the steps (6), (7) and (8), keeping the temperature of the step (6) for at least more than 10s, and cooling the product after the steps (7) and (8) are finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210841157.1A CN115162621B (en) | 2022-07-18 | 2022-07-18 | Production method of thermoplastic composite material rib material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210841157.1A CN115162621B (en) | 2022-07-18 | 2022-07-18 | Production method of thermoplastic composite material rib material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115162621A true CN115162621A (en) | 2022-10-11 |
| CN115162621B CN115162621B (en) | 2023-08-25 |
Family
ID=83495165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210841157.1A Active CN115162621B (en) | 2022-07-18 | 2022-07-18 | Production method of thermoplastic composite material rib material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115162621B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08199733A (en) * | 1995-01-20 | 1996-08-06 | Railway Technical Res Inst | Fiber reinforced plastic rod |
| US6764260B1 (en) * | 2003-02-27 | 2004-07-20 | Building Materials Investment Corporation | Plastic/metal composite batten bar and method of using same for securing a thermoplastic roof membrane to a roof deck |
| CN201236420Y (en) * | 2008-07-31 | 2009-05-13 | 四川航天拓鑫玄武岩实业有限公司 | Fibre composite reinforcement material |
| KR100951927B1 (en) * | 2009-11-09 | 2010-04-09 | (주) 효창이엔지 | Removable nail structure and reinforce steel-bar extraction method using the same |
| CN203080803U (en) * | 2012-12-25 | 2013-07-24 | 淮南市金德实业有限公司 | Re-processable composite rib |
| CN107190916A (en) * | 2017-05-27 | 2017-09-22 | 江苏海川新材料科技有限公司 | A kind of L-type glass-fiber reinforcement material |
| CN207017533U (en) * | 2017-05-22 | 2018-02-16 | 厦门古拉斯置业有限公司 | Steel bar connecting structure |
| CN113389403A (en) * | 2021-07-21 | 2021-09-14 | 安徽工业大学 | Z-pin anchoring member for preventing fiber reinforced layer at end part of steel member with open section from being stripped and method thereof |
-
2022
- 2022-07-18 CN CN202210841157.1A patent/CN115162621B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08199733A (en) * | 1995-01-20 | 1996-08-06 | Railway Technical Res Inst | Fiber reinforced plastic rod |
| US6764260B1 (en) * | 2003-02-27 | 2004-07-20 | Building Materials Investment Corporation | Plastic/metal composite batten bar and method of using same for securing a thermoplastic roof membrane to a roof deck |
| CN201236420Y (en) * | 2008-07-31 | 2009-05-13 | 四川航天拓鑫玄武岩实业有限公司 | Fibre composite reinforcement material |
| KR100951927B1 (en) * | 2009-11-09 | 2010-04-09 | (주) 효창이엔지 | Removable nail structure and reinforce steel-bar extraction method using the same |
| CN203080803U (en) * | 2012-12-25 | 2013-07-24 | 淮南市金德实业有限公司 | Re-processable composite rib |
| CN207017533U (en) * | 2017-05-22 | 2018-02-16 | 厦门古拉斯置业有限公司 | Steel bar connecting structure |
| CN107190916A (en) * | 2017-05-27 | 2017-09-22 | 江苏海川新材料科技有限公司 | A kind of L-type glass-fiber reinforcement material |
| CN113389403A (en) * | 2021-07-21 | 2021-09-14 | 安徽工业大学 | Z-pin anchoring member for preventing fiber reinforced layer at end part of steel member with open section from being stripped and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115162621B (en) | 2023-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2813703C (en) | Reinforcement bar and method for manufacturing same | |
| US5613334A (en) | Laminated composite reinforcing bar and method of manufacture | |
| CN201043326Y (en) | Composite fibre hollow grouting anchoring-bolt | |
| CN115162621A (en) | Thermoplastic composite material rib material and production method thereof | |
| KR102112960B1 (en) | Frp-mesh for reinforcing concrete | |
| CN105839936B (en) | A kind of stretching and anchoring device and tension anchoring method of pre-stress FRP grid | |
| CN110056117B (en) | Corrugated surface hollow FRP profile sea sand concrete slab structure | |
| CN105625610A (en) | Composite shear wall embedded with fiber-reinforced plastic (FRP) tubes | |
| CN101725211A (en) | Fiber-reinforced bamboo-based engineering member | |
| CN201649444U (en) | Novel prestressed composite FRP reinforcing bar | |
| CN201292609Y (en) | Bidirectional anchoring steel fiber | |
| CN113513016A (en) | Prestressed high-strength concrete mixed reinforcement pointed angle pile and preparation method thereof | |
| CN102220872A (en) | Highly-durable FRP (Fiber Reinforced Plastic)-reinforcing steel bar anchor rod used in underwater rock soil anchoring engineering | |
| CN208221800U (en) | Spiral reinforced polypropylene bellows | |
| KR100434820B1 (en) | Rigid reinforcement of structures combined with reinforced resin fibers | |
| CN105776977A (en) | Cement-based composite restraint concrete compound column and manufacture method thereof | |
| CN215253969U (en) | GFRP pipe reinforced concrete cylinder | |
| CN207177096U (en) | A kind of pre-stress FRP sleeve FRP tendons sea sand seawater expansive concrete coupled column | |
| CN2622288Y (en) | Fibre reinforced plastic rib | |
| CN220150688U (en) | Fiber reinforced composite steel bar and sea sand reinforced concrete member | |
| CN215829810U (en) | Concrete narrow beam reinforced by FRP (fiber reinforced Plastic) composite technology | |
| CN107044269A (en) | A kind of repeatable high pressure resistant packer utilized | |
| CN217538751U (en) | Bamboo anchor rod component reinforced by FRP (fiber reinforced Plastic) | |
| CN203270565U (en) | Composite material tube pile with inner ribs | |
| CN212201022U (en) | Double-layer fabric for reinforcing concrete |
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 |