WO2008138190A1

WO2008138190A1 - A glass fiber reinforced plastic door and window profile with reinforcing metal strip

Info

Publication number: WO2008138190A1
Application number: PCT/CN2007/070307
Authority: WO
Inventors: Mingyun Zhou; Chao Shi; Jie Lu
Original assignee: Mingyun Zhou; Chao Shi; Jie Lu
Priority date: 2007-05-14
Filing date: 2007-07-17
Publication date: 2008-11-20
Also published as: CN101050684A; CN101050684B

Abstract

A glass fiber reinforced plastic door and window profile (1) with reinforcing metal strip includes a hollow part (108) formed by at least two perpendicular thin walls and at least two traverse thin walls. A reinforcing metal stip (105) is embedded in at least one thin wall. A fiber felt (102), a piece of fabric (103), a fiber bundle (104), a metal strip (105) and a piece of fabric (103) are orderly disposed in the cross section of the wall from outside to inside. And those layers are dipped with resin compound (10) and solidified into a whole.

Description

Metal reinforced fiberglass door and window pultrusion profile and production method thereof

Technical field

The invention relates to a door and window profile and a production method thereof, in particular to a FRP door and window profile and a production method thereof.

Background technique

Saving resources, saving energy, and building a conservation-oriented society are important topics in the world in recent years. China has always been a big energy-consuming country. According to estimates, China's building energy consumption accounts for more than 1/3 of total energy consumption. It also accounts for more than 12 of the building energy consumption; indoor heating and air conditioning energy consumption is more than 15 of the building energy consumption; from the energy loss of the entire building, 70% of the energy loss is lost through the doors and windows. According to relevant experts' estimates, if 40% of China's non-energy-saving windows are transformed into energy-saving windows, the country can save 156 million tons of coal per year (equivalent to RMB 24.96 billion), which shows the importance of energy saving for doors and windows. Since the 1990s, with the increasing international energy, the country has begun to have higher and higher requirements for building energy efficiency. Governments at all levels are increasingly clear about the requirements for building energy efficiency. In 1996, the State promulgated the "Design Standard for Energy Efficiency of Civil Buildings"; in 2001, the State promulgated the "Design Standard for Energy Efficiency of Residential Buildings in Hot Summer and Cold Winter Zones"; In 2002, Beijing promulgated the Beijing Municipal Engineering Construction Technical Standards "Technical Specifications for Residential Building Doors and Windows Applications" 》 Clearly required to control the heat transfer coefficient of the outer window to within 2.8W/(m2.K); On July 1, 2005, the state promulgated and implemented the first national standard for public building energy conservation in China. 》 , which has a clear regulation on the heat transfer coefficient (K value) of public building doors and windows, and also puts forward requirements for energy saving in the hot summer and warm winter areas. The introduction of all these standards and specifications indicates that environmentally-friendly and energy-saving FRP doors and windows will usher in a broader development space. With the development of the national economy, the increase and growth of energy consumption is getting faster and faster. The quality and function requirements of building doors and windows will be higher. Research and development of new energy-saving doors and windows is the main direction of the future. FRP doors and windows are particularly suitable for this development trend, and are gradually recognized by people.

Due to the poor gripping force of the FRP material for the screw joint, several linings need to be added to the FRP profile cavity in the assembly process of the FRP door and window, see Figure 1. In this way, different profiles need to be designed and matched with different shapes, and the linings should be inserted into the specified position of the profile and fixed before the door and window are assembled, which greatly increases the complexity of processing and installation.吋 also raised the door Material cost and labor cost of the window.

[4] Due to the complexity of the processing technology, installation process and cost constraints, it is difficult for FRP doors and windows to have many downstream processing plants like the doors and windows of other materials. Most FRP doors and windows can only be processed by FRP door and window profiles manufacturers. Production, the existing window and door processing factory in the society recognizes the necessity of the future development of FRP doors and windows, but it is prohibitive. It is very afraid of the complicated production process of FRP doors and windows, thus greatly restricting the development of FRP doors and windows.

[5] In the production of profiles for FRP doors and windows, soft fiberglass materials can only be used as reinforcing materials at home and abroad. The glass fiber material includes a long bundle of filaments, a woven fabric, a short bundle of fiber mats, and the like, which are impregnated with a resin mixture and then heated by a mold to form a profile. These materials are more prone to tensile deformation during the drawing process, resulting in various deformations of the profile, resulting in a decrease in the yield of the product. In addition, the fiber material has a relatively high strength in the longitudinal direction, and the transverse strength is relatively weak. The fiber bundle in the above reinforcing material is the main body of the reinforcing material, and the fiber cloth and the fiber mat are applied only to the inner and outer surfaces of the profile. The fiber bundle has a good tensile strength only in the longitudinal direction of the profile. The fiber cloth and the fiber felt have a limited effect on the transverse strength of the profile. Then the longitudinal compressive strength and the transverse tensile strength of the profile are the weak links of the profile strength. This problem has not been solved very well, thus limiting the application range of FRP pultruded profiles.

[6] The traditional FRP is a structure made of glass fiber and its products as a reinforcing material, based on thermosetting or thermoplastic resin, and formed by a certain molding process. Its scientific name is "glass fiber reinforced plastic". The FRP profiles produced by the traditional FRP door and window profile production process are pure glass fiber and resin cured structures. Conventional FRP profiles have the disadvantage of weak lateral strength and poor grip strength with screw connectors.

Disclosure of invention

technical problem

[7] The object of the present invention is to provide a metal reinforced FRP door and window pultrusion profile and a production method thereof, and to solve the problem that the transverse strength of the FRP profile is weak and the grip strength of the screw fastener is insufficient; Metal reinforced FRP doors and windows pultruded profiles processing and production costs and high cost.

Technical solution

[8] In order to achieve the above object, the utility model uses the following technical solutions: a metal reinforced fiberglass door and window a pultruded profile having a shape of an elongated hollow member having a cavity formed by at least two longitudinal thin walls and at least two transverse thin walls, characterized in that: a metal strip is formed inside the at least one thin wall, The thin-walled cross-section has fiber mat, fiber cloth, fiber bundle, metal strip, and fiber cloth in order from the outside to the inside, and the above layers are impregnated and solidified by the resin mixture.

The thin-walled composite cavity may have an internal partition.

The outer surface of the thin wall may have a groove.

The metal strip may have a thickness of 0.5 to 1.0 mm.

The method for producing the above-mentioned metal reinforced FRP door and squeezing profile is characterized in that: the fiber reinforced material and the metal strip for forming the metal reinforced FRP door and window pultrusion profile are driven by the tractor, and the following steps are sequentially performed:

Step 1, using a tractor to pull the fiber mat, the fiber cloth, the fiber bundle and the metal belt from the creel and the yarn drum in the same direction;

Step 2, the drawn fiber bundle is impregnated into the resin mixture in the resin tank, commonly known as dipping; Step 3, continue to draw the fiber mat, the fiber cloth, the dipped fiber bundle and the metal strip so that they are respectively taken from the yarn splitter Pass through the predetermined gap and pass through the preform adjustment die;

Step 4, the fiber mat, the fiber cloth, the dipped fiber bundle and the metal strip are drawn into the heating mold to form and solidify after passing through the preform adjustment mold;

Step 5: The formed profile coming out of the heated forming mold is pulled to the cutting saw for cutting.

In the above step 1, the first bracket (5) for placing the metal tape tray and the second bracket for placing the fiber mat tray can be connected to both sides of the creel.

In the above step 3, the yarn splitter may be in the shape of a grid, and the upper and lower edges of the grille are provided with a flat hole of the fiber mat and a flat hole of the fiber cloth, and the edge of the inner hole of the yarn splitter is provided with a flat hole with a metal strip. The core of the yarn has a square hole.

In the above step 4, the heated molding die to the resin tank can be connected to a slanted resin return tank.

The above-mentioned metal reinforced fiberglass door and window pultrusion profile production device is characterized in that: the sequence is formed by a creel, a resin groove, a yarn splitter, a preforming adjustment die, a heating forming die, a tractor, a dicing saw, and a yarn. At least one layer of gauze is placed on the frame, a first bracket on which the metal tape tray is fixed on both sides, and a second bracket on which the fiber mat tray is placed, and the molding die is heated to the resin tank to connect to an inclined resin return groove. Beneficial effect

[22] Compared with the prior art, the following characteristics and beneficial effects are obtained: The invention increases the compressive strength and the transverse tensile strength of the FRP profile by increasing the metal reinforcing material of the FRP material in the FRP material. And for the gripping force of the screw connector, the FRP profile produced by this method can completely eliminate the lining for the connection during the assembly process of assembling the door and window and the installation process of the door and window, simplifying the assembly and installation process, and making the door and window The assembly process is simpler, the processing difficulty is reduced, and the cost is greatly saved, so that many downstream door and window processing units in the society can also produce the profiles of FRP doors and windows by relying on their own technical level.

[23] The outstanding difference between the present invention and the pultrusion process commonly used at home and abroad is that the molding method is to compound a metal material in the profile forming process, thereby improving the mechanical properties of the product and further improving the quality of the profile. In particular, it improves the transverse mechanical properties of the profile and the holding force on the screw connection. The profile produced by this method should be a composite type of FRP material, which combines FRP itself with other materials to make up for some shortcomings of FRP pultruded profiles and improve the performance of FRP pultruded profiles. , solved a big problem that has been plaguing people for a long time.

[24] The following table compares the heat transfer coefficient test results for several common material doors and windows:

[25] It can be seen from the above data that ordinary aluminum alloy doors and windows will be completely eliminated in some areas where energy conservation is critical. However, the overall level of China's door and window insulation performance is still far from the foreign countries. The heat transfer coefficient of doors and windows in northern and North America is generally less than 2.0W/(m2.K), and some reach ll~1.2W/(m2.K). To achieve this requirement abroad, the active development of FRP doors and windows is a practical and feasible means of building energy conservation in China.

[26] Experimental evidence: The glass fiber reinforced plastic doors and windows combined with the invention can be kept at 15 ° C - 16 ° C in the winter without any heating facilities; in the summer without air conditioning and refrigeration, The room temperature can be maintained at 22 ° C - 25 ° C for a long time. The results of this experiment show that: through the cooperation between FRP door and window energy saving and wall insulation, it can completely achieve low energy consumption and even zero energy consumption of the building. It is better than other types of doors and windows for resource consumption and environmental pollution. It also features corrosion resistance, high strength, green environmental protection, long service life and low cost.

[27] The invention makes the assembly process of the door and window simpler and the processing difficulty is lower, so that many downstream door and window processing units in the society can also produce the FRP window by relying on their own technical level, which is favorable for promoting the development of the FRP door and window.

[28] Since the added metal strip is a unified whole, it can ensure that the profile does not twist and bend to a certain extent, and has positive significance for improving the flatness and lateral strength of the profile. Referring to Fig. 2, for connecting the 吋, the force of the screw on the profile is directly applied to the metal strip, and then the metal strip is dispersed to various positions inside the profile, which greatly improves the stress state of the profile and improves the profile to the screw, etc. The holding force of the connecting member can completely eliminate the lining of the profile assembled into the door and window 吋 for reinforcing the connection, thereby reducing the design, manufacture and installation cost of the lining, greatly simplifying the production process of the door and window, and the assembly efficiency of the door and window is obtained. Great improvement.

DRAWINGS

[29] Figure 1 is a schematic view of the connection between a conventional profile and a wall.

[30] Figure 2 is a schematic view showing the connection of the profile of the present invention to a wall.

Figure 3 is a schematic view showing the distribution of the production process and production apparatus of the present invention.

[32] Figure 4 is a schematic view of the creel.

[33] Figure 5 is a schematic view of the yarn splitter.

6 is a pultruded profile with an inner partition according to an embodiment of the present invention;

Figure 7 is a schematic enlarged view of the structure of Figure 6; [36] FIG. 8 is a schematic enlarged view of a portion B in FIG.

Figure 9 is a pultruded profile of the second embodiment of the present invention without an internal partition;

[38] Fig. 10 is a schematic enlarged view of the structure C at Fig. 9.

[39] In the picture: 1 pultruded profile with internal partition, 2 - pultruded profile without internal partition, 3 creel, 4 yarn bucket, 5 - first bracket, 6 - metal belt tray, 7 - Two brackets, 8 - fiber felt tray, 9 resin tank, 10 - resin mixture, 11 yarn splitter, 12 - preform adjustment mold, 13 - resin return tank, 14 heat forming mold, 15 - tractor, 16 - cutting Saw, 17 profiled profiles, 18-liner for reinforcement connection, 19-traditional profile, 20-screw, 21-wall, 101-mesh felt, 102-fiber mat, 103-fiber cloth, 104-fiber Beam, 105-metal strip, 106-internal partition, 107 groove, 108 cavity. BEST MODE FOR CARRYING OUT THE INVENTION

[40] Embodiment 1 Referring to Figures 6 and 8, the pultruded profile 1 of the inner partition is composed of three longitudinal thin walls and two transverse thin walls to form an inner partition 106 having two cavities. The elongated hollow member of the shape of 108, the outer surface of the thin wall has a groove 107, wherein: a metal strip 105 is disposed inside each of the two lateral thin walls, and the cross section of the thin wall is sequentially from the outside to the inside. There are a fiber mat 102, a fiber cloth 103, a fiber bundle 104, a metal strip 105, and a fiber cloth 103, and each of the above layers is impregnated and solidified by a resin mixture.

[41] Referring to Fig. 7, the inner partition 106 is sequentially impregnated and solidified by the mesh mat 101, the fiber bundle 104, and the mesh mat 101 with a resin mixture.

[42] Embodiment 2 Referring to FIG. 910, the pultruded profile 2 without internal partitions is composed of two longitudinal thin walls and two transverse thin walls to form an elongated hollow member having a cavity 108. The outer surface of the thin wall has a groove 107, and is characterized in that: a metal strip 105 is disposed inside each of the two lateral thin walls, and the thin-walled cross-section has fiber mats 102 and fibers from the outside to the inside. The cloth 103, the fiber bundle 104, the metal belt 105, and the fiber cloth 103 which are uniformly arranged in the longitudinal direction, are immersed and solidified by the resin mixture.

The shape and composition of the metal reinforced fiberglass door and window pultruded profile of the present invention are not limited to the above embodiments, and the shape and composition of the profile may be varied as needed.

[44] Referring to Fig. 3 - 5, a production method for producing the above-mentioned metal reinforced FRP door and squeezing profile, characterized in that: a fiber reinforced material and a metal belt for making a metal reinforced FRP door and plunge profile are used in a tractor With the following steps, complete the following steps in order:

[45] Step 1, using a tractor 15 to put the fiber mat, The fiber cloth, the fiber bundle and the metal strip are pulled from the creel 3 and the yarn drum 4 in the same direction. In step 1, the first bracket 5 on which the metal tape tray 6 is placed and the second bracket 7 on which the fiber mat tray 8 is placed are connected to both sides of the creel. This step is mainly done in the creel area. The creel is mainly used for placing bundled glass fiber yarns, which are taken out from the barrel and passed through the threading holes at the top of the creel into the dipping area. Also in this portion are strip-shaped fibrous materials such as fiber cloth, fiber mat, and mesh mat, which are mounted on a creel through a tray. The effect of these reinforcing materials is: The fiber bundle 104 is the main reinforcing material for the FRP pultruded profile, which is the main part of the longitudinal force of the profile. The fiber mat 102 is a felt which is laid out by short glass fiber filaments, and can bear the force in all directions. It is used on the outer surface of the profile to make the surface of the profile smoother and smoother. The fiber cloth 103 is a cloth made of glass fiber, which is used for the surface layer of the profile wall and has a reinforcing effect on the transverse and longitudinal strength of the profile. The above mesh mat can replace fiber cloth or fiber mat.

[46] Step 2, the drawn fiber bundle is impregnated into the resin mixture 10 in the resin tank 9, commonly known as dipping. The dipping area is mainly used for dipping glass fiber reinforced materials. The resin tank contains resin and some other fillers. When the fiber reinforcement passes through the crucible from the resin tank, the resin mixture is impregnated onto the fiber reinforcement and finally enters the mold with the fiber reinforcement. The resin is the base material of FRP. The main functions are: maintaining the shape of the fiber reinforced material; transferring the force between the reinforcing materials; wrapping the surface of the fiber material to protect it from external physical and chemical factors.

[47] Step 3, continue to draw the fiber mat, the fiber cloth, the dipped fiber bundle and the metal strip so that they first pass through a predetermined gap in the yarn splitter 11 and then pass through the preform adjustment mold 12. In the step 3, the yarn splitter 11 is in the shape of a grid, and the upper and lower edges of the grille are respectively provided with a flat hole of the fiber mat and a flat hole of the fiber cloth, and the edge of the inner hole of the yarn splitter is opened with a flat hole of the metal strip. The core of the yarn has a square hole. The preform section and the profiled section of the profile are the most critical part of the process. Preforming is a necessary step before the dipped glass fiber enters the mold. It consists of two important components: the yarn splitter and the preformed adjustment die. After the dipped glass fiber exits the resin tank, it first enters the yarn splitter, and the glass fiber yarn is adjusted into upper, lower, left and right parts through the holes in the yarn splitter, which is the first step adjustment before the dipped glass fiber enters the mold. Through this step, the glass fiber yarn is first distributed in the approximate shape of the cross section of the molding material.

[48] After the initial adjustment of the yarn splitter, the dipped glass fiber enters the preforming adjustment mold. The preforming adjustment mold is used for positioning the reinforcing materials, which causes the reinforcing materials to enter the mold in a set arrangement, ensuring that the reinforcing materials do not cause entanglement after entering the mold, and the excess resin on the glass fibers is also The bubbles contained in the resin are extruded to ensure the quality of the profile.

[49] Step 4, the fiber mat, the fiber cloth, the dipped fiber bundle, and the metal strip are drawn into the heating mold 14 to form and cure after passing through the preform adjustment mold. In step 4, the molding die 14 is heated to the resin tank 9 to connect a slanted resin return tank 13. Forming and curing is done in the profile mold and is the final step in profile forming. The mold generally comprises a top mold, a bottom mold, a left mold, a right mold and a core iron, and the top, bottom, left and right side molds form a cavity of a certain shape around the core iron, and the cavity is a molding cavity of the profile. The dipped glass fiber enters the mold directly after exiting from the preforming mold. After entering the mold, the dipped glass fiber fills the entire molding cavity by pressing each other, and the same mold is heated by the heating plate, and the resin mixture is also reacted under the heating of the mold. Curing, and passing through the mold driven by the tractor, the curing process is completed before the profile has been released.

[50] Step 5, the formed profile 17 from the heated molding die 14 is pulled to the dicing saw 16 for cutting.

At the end of the pultrusion line, the automatic dicing saw automatically detects and cuts the profile to the required size according to the set length.

[51] Referring to Fig. 3-5, the production device of the metal reinforced FRP door and squeezing profile is characterized in that: the creel 3, the resin groove 9, the yarn distributor 11, the preform adjustment die 12, and the heating molding die 14 are sequentially arranged. , the tractor 15 and the dicing saw 16 are arranged in a zigzag manner, the creel 3 is placed with two or more layers of the yarn barrel 4, the first bracket 5 on which the metal belt tray 6 is fixed on both sides, and the second unit on which the fiber mat tray 8 is placed The holder 7, the thermoforming mold 14 to the resin tank 9 is connected to an inclined resin return tank 13.

[52] The present invention does not require the addition of additional equipment, winds the metal strip into a roll and secures it on the creel using the tray mentioned above, and the working yoke metal strip enters the mold along with the glass fiber reinforced material under the pull of the yoke And solidification with the profile.

Claims

Claim

[1] 1. A metal reinforced fiberglass door and window pultruded profile, wherein an elongated hollow member having a cavity (108) is formed by at least two longitudinal thin walls and at least two transverse thin walls. The method comprises: a metal strip (105) inside the at least one thin wall, wherein the thin-walled cross-section has a fiber mat (102), a fiber cloth (103), a fiber bundle (104), and a metal strip (from the outside to the inside). 105), the fiber cloth (103), each of the above layers is impregnated and solidified by a resin mixture.

[2] 2. The metal reinforced fiberglass door and window pultruded profile according to claim 1, wherein the thin-walled composite cavity has an internal partition (106).

[3] 3. The metal reinforced fiberglass door and window pultruded profile according to claim 1 or 2, characterized in that

: The outer surface of the thin wall has a groove (107).

[4] The metal reinforced fiberglass door and window pultruded profile according to claim 3, wherein the metal strip (105) has a thickness of 0.5 to 1.0 mm.

[5] 5. A method for producing a metal reinforced fiberglass door and window pultruded profile according to claim 4, characterized in that: a fiber reinforced material and a metal strip for producing a metal reinforced fiberglass door and window pultruded profile are used in a tractor With the following steps, complete the following steps in order:

Step 1. Pull the fiber mat, fiber cloth, fiber bundle and metal belt from the creel (3) and the yarn drum (4) in the same direction with a tractor (15);

Step 2, impregnating the drawn fiber bundle into the resin tank (9) to impregnate the resin mixture (10), commonly known as dipping;

Step 3, continue to draw the fiber mat, the fiber cloth, the dipped fiber bundle and the metal strip so that they first pass through a predetermined gap in the yarn splitter (11), and then pass through the preform adjustment mold (12); Step 4, the fiber mat, the fiber cloth, the dipped fiber bundle and the metal strip are drawn into the heating forming mold (14) to form and cure after passing through the preform adjusting mold;

Step 5. The formed profile (17) from the heated molding die (14) is pulled to the cutting saw (16) for cutting.

[6] 6. The method for producing a metal reinforced fiberglass door and window pultruded profile according to claim 5, wherein: in the above step 1, the first bracket of the metal tape tray (6) is connected to both sides of the creel. (5) and place the second bracket (7) of the fiber felt tray (8).

The method for producing a metal reinforced fiberglass door and window pultruded profile according to claim 5, wherein in the step 3, the yarn splitter (11) is in the form of a grid, and the upper and lower edges of the grille are opened. The fiber felt flat hole and the fiber cloth flat hole, the metal fiber flat hole is opened on both sides of the inner hole of the yarn splitter, and the core of the yarn splitter has a square hole.

The method for producing a metal reinforced fiberglass door and window pultrusion profile according to claim 5, wherein in the step 4, the heating molding die (14) is connected to the resin tank (9) to connect to an inclined resin return groove ( 13).

9. A device for producing a metal reinforced fiberglass door and window pultruded profile according to claim 1 or 2 or 4, characterized by: a sequence of a creel (3), a resin tank (9), and a yarn splitter (11) , preforming adjustment mold (12), heating molding mold (14), tractor (15), cutting saw (16) - arranged in a glyph, placing at least one layer of yarn drum (4) on the creel (3), both sides The first bracket (5) on which the metal tape tray (6) is placed sideways and the second bracket (7) on which the fiber felt tray (8) is placed are heated to form a mold (14) to the resin tank (9) to connect a tilted resin return tank (13