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A kind of treatment method of rubber layer on the surface of recycled steel fiber

A treatment method and surface rubber technology, applied in the field of steel fiber, can solve the problems of reducing the bearing capacity of components, reducing the bonding effect between concrete and steel fiber, etc., and achieve the improvement of splitting tensile strength and shear strength, which is obviously economical and practical value effect

Active Publication Date: 2021-12-24
JILIN JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a thin layer of rubber on the surface of the recycled steel fiber directly extracted from the tire. The rubber layer on the surface of the steel fiber will reduce the bonding effect between the concrete and the steel fiber, and eventually reduce the bearing capacity of the component.

Method used

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  • A kind of treatment method of rubber layer on the surface of recycled steel fiber
  • A kind of treatment method of rubber layer on the surface of recycled steel fiber
  • A kind of treatment method of rubber layer on the surface of recycled steel fiber

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example 1

[0029] The diameter of recycled steel fiber is generally 1.5mm.

[0030] Reclaim steel fiber surface rubber layer processing method in the present embodiment, concrete steps are as follows:

[0031] The first step: pass the steel fiber through the high temperature resistance box, and perform high temperature treatment on the rubber on the surface of the steel fiber.

[0032] Step 2: After high temperature treatment, pass the steel fiber through a chrome-vanadium alloy steel fixture to remove large rubber blocks on the surface of the recycled steel fiber.

[0033] Step 3: After preliminary rubber treatment of the steel fibers, pass the steel fibers through the channel of the third abrasive tool. The diameter of the channel opening is 1.6mm. Through this step, a relatively smooth recycled steel with a diameter of 1.5mm is obtained. Finished fiber.

example 2

[0035] The diameter of recycled steel fiber is generally 1.0mm.

[0036] Reclaim steel fiber surface rubber layer processing method in the present embodiment, concrete steps are as follows:

[0037] The first step: pass the steel fiber through the high temperature resistance box, and perform high temperature treatment on the rubber on the surface of the steel fiber.

[0038] Step 2: After high temperature treatment, pass the steel fiber through a chrome-vanadium alloy steel fixture to remove large rubber blocks on the surface of the recycled steel fiber.

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Abstract

The invention relates to a treatment method for recovering the rubber layer on the surface of steel fibers. Firstly, the steel fibers are subjected to local high-temperature treatment, and then pass through a circular 80-degree high-temperature circular channel to reduce the bonding strength of the rubber on the surface of the steel fibers and the rubber Toughness, to prepare for the subsequent stripping; then through a chrome vanadium alloy steel channel fixture, peel off the larger residual rubber block, which is convenient for the fine treatment of the remaining rubber; after the preliminary treatment of this step, pass the 1.5mm Or 1.0mm hole opening, so as to remove the thin rubber layer on the surface of the last remaining steel fiber. The invention uses a series of processes to peel off the adhesive rubber layer on the surface of the steel fiber extracted from the tire, so that the bead steel fiber can have a better bonding effect with concrete when it is used in engineering.

Description

technical field [0001] The invention relates to a method for treating a rubber layer on the surface of recycled steel fibers, and relates to the technical field of steel fibers. Background technique [0002] Steel fibers have excellent toughness and good adhesion to concrete, and are widely used in various engineering fields such as buildings, bridges, and tunnels. Recycled steel fiber is a kind of high-strength bead steel wire extracted from waste tires along the tire ring direction. The strength can generally be 470MPa. Because of its high strength and can work well with concrete, it is very good Improve the strength and toughness of concrete. There is an urgent need to industrialize the processing of recycled steel fibers to facilitate its wide application in the field of civil engineering. Existing steel fibers are mainly manufactured by steel mills using industrial molten steel to build molds, and there is no bead steel wire extracted from tires for rational applicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00
CPCB09B3/00B09B3/40
Inventor 李妍董文洋方权尹新生
Owner JILIN JIANZHU UNIVERSITY