Manufacturing process of heat preservation wall connecting piece

Abstract

The invention relates to a manufacturing process of a heat preservation wall connecting piece. The manufacturing process comprises the following steps of A, selecting raw materials, specifically, selecting 65%-75% of alkali-free roving glass fiber direct yarn, 10%-20% of epoxy resin, 3%-5% of a liquid flame retardant, 8%-12% of a curing agent and 3%-4% of an accelerant; B, mixing the raw materials, specifically, putting the raw materials obtained in the step A into a normal-temperature stirrer for stirring treatment, wherein the stirring time is 15-20 minutes; and C, forming and manufacturing,specifically, carrying out pultrusion, traction, grinding and cutting on the raw materials obtained in the step B on an integrated forming device to obtain a glass fiber rod body, and then sequentially carrying out sharpening and blocking sleeve group injection molding on the glass fiber rod body through a sharpening device and an injection molding device respectively so as to obtain the finishedthe heat preservation wall connecting piece. The manufacturing process has the advantages that rapid forming can be realized, the structural strength is improved, and the bonding force is improved.

Description

[0001] Technical field: [0002] The invention relates to a manufacturing process of a thermal insulation wall connector. [0003] Background technique: [0004] The prefabricated sandwich insulation wall is a new type of prefabricated insulation wall that integrates load bearing and insulation. The wall is composed of inner and outer concrete wall panels, intermediate insulation layers and connectors. The connectors are connected to the concrete sandwich insulation wall. The key component of the outer concrete wall panel and the middle insulation layer, its main function is to resist the interlayer shear between the two concrete wall panels. According to different materials, connectors are mainly divided into three types: ordinary steel bar connectors, metal alloy connectors and glass fiber composite connectors. The glass fiber composite connector has the characteristics of low thermal conductivity, good durability and strong height, which can effectively reduce the heat tran...

AI Technical Summary

Problems solved by technology

[0005] Patent No. CN205224390 U is a thermal insulation connector, including a connector body and several tooth-shaped grooves arranged on the connector body, at least one elastic snap ring is fastened on the tooth-shaped groove of the connector body. This patent is simple to make and can be One-time molding is realized, and the elastic snap ring is easy to disassemble and install, but this patent has the following disadvantages: 1. The setting of the tooth groove, for the process of embedding the connector in concrete, has low guiding force, and other auxiliary tools are required to be used for embedding. Realization; 2. The elastic clip can slide, although it is convenient to adjust and fix the position of the connector body in the insulation layer and the concrete layer, but it also has the disadvantage of being easy to fall off

[0006] Patent No. CN 206752715 U A thermal insulation wall connector, including a rod body and glass fiber yarn wound on the outer ring of the rod, the glass fiber yarn is a threaded structure, one end of the rod body is a tapered structure, and the outer ring at the other end is covered with The stopper, the inner surface of the stopper and the rod body are connected by welding. The patented conical structure and the threaded structure of the outer ring can be processed and formed at one time, which reduces the production cost and improves production efficiency. The setting of the threaded structure increases the frictional resistance of the rod body At the same time, the bonding force with concrete is increased, the steel wire rope is wound to make the connecting piece more tightly pultruded, the resin is extruded more dry, and the tensile performance of the product is improved, but this patent has the following disadvantages: 1. The glass fiber yarn is wound Thread-like structure, the surface is uneven, and the surface in the middle of the thread-like structure is the outer surface of the rod body, which is smooth. The connecting piece is inserted into the concrete, and the pulling force and bite force between the connecting piece and the concrete 1. The adhesive force is relatively weak, which reduces the use effect of the connector; 2. Due to the uneven surface of the threaded structure, it is necessary to manually assemble the stopper, and the inner surface of the stopper and the rod body are welded to improve the firmness of the connection , for mass-produced connectors, welding after manual assembly has certain limitations, which is time-consuming and labor-intensive

At the same time, the manufacturing process of the thermal insulation wall connector is to process the rod body first, then process the stopper, and finally set the stopper on the end of the rod body away from the tapered structure and weld and fix it. The rod body is directly wound by non-alkali and twist-free glass fiber Finally, it is made by steel wire rope pultrusion, and the rod body is made through four steps of pultrusion, dipping, winding, and sharpening. However, the structural strength and adhesion of the thermal insulation wall connector made by this manufacturing process are low. Due to the surface shape of the prepared rod body, the stopper set needs to be manually installed and then welded, and the process is cumbersome

If a connector for thermal insulation walls that can realize rapid prototyping, improve structural strength and adhesive force is provided, it will definitely attract the attention of the market. After searching, no similar patents have been found.

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