Mfg. method of braking band of integral pressed blending fibre

Abstract

The making process of integrally pressed brake belt with blended fiber includes the following steps: 1. preparing blended fiber with several kinds of friction fiber material; 2. combing the blended fiber, adding metal net layer by layer and pressing integrally to form the belt blank; 3. soaking the belt blank in phenolic resin; 4. drying the soaked belt blank naturally; 5. heating to cure; and 6. polishing surface of the cured belt to produce brake belt product. The process has the advantages of high safety and saving in gasoline, and the product has raised heat resistance, wear resistance and stability and low cost.

Description

technical field [0001] The invention relates to the field of brake materials for mechanical equipment, in particular to a method for manufacturing a blended fiber integrally pressed brake band. Background technique [0002] Existing brake bands include blank bands and adhesive materials, which are roughly divided into two categories according to the manufacturing method, one is manufactured by pressing, and the other is manufactured by integral weaving. [0003] Pressing method to manufacture brake bands: including the multi-layer lamination processing method used in rubber-based cloth brake bands as shown in Figure 1 (a), and the rubber resin fiber stirring and pressing method used in rubber-based short-fiber brake bands as shown in Figure 1. 1(b). The brake bands manufactured by these two pressing methods all use natural rubber as the adhesive material. Since the rubber adhesive material will coke and decompose when the temperature reaches 150°C, the brake band will heat ...

AI Technical Summary

Problems solved by technology

The brake bands manufactured by these two pressing methods all use natural rubber as the adhesive material. Since the rubber adhesive material will coke and decompose when the temperature reaches 150°C, the brake band will heat up when the working temperature reaches 150°C. The decline affects the use of brake bands; and the rubber plasticizing and rubber mixing in the manufacturing process of these two types of pressed brake bands requires the use of a large amount of gasoline to dissolve the film. Because gasoline solvents are highly volatile, gasoline solvents in the air in the working environment The high content of ingredients is prone to explosion and fire, so the production process has high energy consumption and dangerous working environment, which does not meet environmental protection requirements

In addition, the rubber-based cloth brake belt manufactured by the multi-layer lamination method is prone to layering and blistering, resulting in unstable product quality

Using rubber resin fiber stirring and pressing method, during the mixing and stirring process, the glue, auxiliary materials and fibers cannot be fully mixed, and the fibers are easy to agglomerate, resulting in uneven distribution of fibers, glue and resin auxiliary materials in the finished product, so the products produced by this method Rubber-based short-fiber brake belts have the problems of unstable quality, low strength, easy breakage, and non-wear resistance, which cannot meet the requirements of modern mechanical equipment.

[0004] In addition, the overall braided brake band method is used, because of the complex spinning, twisting, and weaving processes, many production processes, and difficult adjustment of material formulas, resulting in high production costs and expensive finished products

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