Polyurethane wrapping basalt fiber wire rope and processing method thereof

Abstract

The invention relates to a polyurethane wrapping basalt fiber wire rope and a processing method thereof. The polyurethane wrapping basalt fiber wire rope is composed of a basalt fiber core wire and a wrapping layer, wherein a thermal plastic type polyurethane elastomer wrapping layer is arranged on the outer portion of the basalt fiber core wire, and the basalt fiber core wire comprises a single strand wire which is made of basalt fiber untwisted roving in a primary twisted mode or a single core wire which is made of basalt fiber untwisted roving in a secondary twisted mode. The processing method of the polyurethane wrapping basalt fiber wire rope comprises the steps of drying, manufacturing a core wire, wrapping and manufacturing a rope. The polyurethane wrapping basalt fiber wire rope and the processing method thereof resolve the problem that the basalt fibers are very easy to broken in the process of industrial belt manufacture, the wrapping core wire contains thermal plastic type polyurethane elastomer, the wrapping core wire as a tensile resistance framework layer is melted with the thermal plastic type polyurethane elastomer material with body glue, and thus the adhesive strength of a framework rope is strong. The polyurethane wrapping basalt fiber wire rope and the processing method thereof resolve the defect of the poor abrasion resistance of a basalt fiber wire rope, and has good abrasion resistance, oil resistance, water-proof, high strength, low elongation rate, light weight and long service life.

Description

technical field [0001] The invention relates to a basalt fiber cord, in particular to a polyurethane-coated basalt fiber cord and a processing method thereof. Background technique [0002] The tensile strength of basalt fiber is 4450-4800MPa, which is higher than that of large tow carbon fiber, aramid fiber and steel fiber. The cord made of basalt fiber has high strength, high modulus, good heat resistance, elongation Low rate and so on. Instead of steel wire rope, polyester wire rope, etc. as the tensile skeleton layer to produce various industrial belts, under the same wire diameter, it has higher strength, lower elongation, and lighter weight (the specific gravity is only 1 / 3 of steel). The cord made of basalt fiber has the characteristics of high strength, light weight and low elongation. Compared with other high-tech fiber (carbon fiber, aramid fiber, UHMWPE fiber), its price is the lowest. But basalt fiber also has its own disadvantages. The fiber is relatively britt...

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Problems solved by technology

But basalt fiber also has its own disadvantages. The fiber is relatively brittle. In order to achieve the softness of the cord, the diameter of the single filament should be small (6.0-18 microns), which is easy to break. The skeleton cord made of basalt fiber is used in the production of industrial belts. During the process, the monofilament is very easy to break, resulting in the loss of the tensile strength of the tensile skeleton layer and affecting the product quality.

The wire rope made of basalt fiber is easy to break because the fiber is easy to break, which makes the wire rope not wear-resistant and affects the service life

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