Twisting steel chisel

Abstract

The utility model relates to the technical field of steel chisels, and discloses a twisted steel chisel which comprises a core part and four metal steel wires wrapped on the outer wall of the core part and twisted in a spiral mode, the core part is a steel wire column, the metal steel wires are distributed on the outer wall of the steel wire column at equal intervals, the spiral twisting directions of the metal steel wires are opposite, and the spiral twisting directions of the metal steel wires are opposite. Gaps among the metal steel wires are coated with wear-resistant high polymer material layers so as to enhance the wear resistance of the whole structure, and the tail ends of the metal steel wires are connected with connecting blocks which are conical. Through the design of the plurality of metal steel wires, the steel fibers are more uniformly distributed in concrete, the anchoring property and cohesiveness with the concrete are enhanced, meanwhile, the connecting blocks are conical, and the surfaces of the connecting blocks are treated to form micron-order roughness, so that the binding force between the steel fibers and the concrete is further improved, and the service life of the steel fibers is prolonged. The fibers are effectively prevented from being pulled out under the action of external force, and the risk that the fibers are straightened to be loosened or pulled out in concrete is reduced.

Description

Technical Field

[0001] This utility model relates to the field of steel fiber technology, specifically a twisted steel fiber. Background Technology

[0002] Twisted steel fibers, also known as twisted steel fibers, are a type of fiber material used to improve the mechanical properties of concrete. They are made from high-strength steel wires through an advanced twisting process, resulting in high strength, toughness, and wear resistance. Twisted steel fibers form a tight network structure in concrete, enhancing its strength and toughness, overcoming its brittleness, and resisting the formation and propagation of cracks.

[0003] To improve the overall performance of concrete, steel fibers are often added to building concrete projects both domestically and internationally to enhance the tensile, shear, flexural, abrasion, and crack resistance of ordinary concrete, thereby improving its overall performance.

[0004] Currently, commonly used steel fibers are generally straight, prismatic, or corrugated steel fibers. They have a single anchoring point and have defects such as poor anchoring and bonding with the concrete matrix. When steel fiber concrete is subjected to external forces, the fibers are easily pulled out of the concrete, which seriously affects the service life of the concrete and has an adverse effect on the safety and durability of the concrete structure. Utility Model Content

[0005] The purpose of this invention is to provide a torsion steel fiber to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a twisted steel fiber, comprising a core and an outer wall covered with helically twisted metal wires. The core is a steel wire column, and there are four metal wires, which are evenly distributed on the outer wall of the steel wire column. The helical twisting direction of each metal wire is opposite, and the gap between the metal wires is coated with a wear-resistant polymer material layer to enhance the wear resistance of the overall structure. The end of each metal wire is connected to a connecting block, which is conical in shape, and the surface of the connecting block is treated to form a micron-level roughness.

[0007] Preferably, the diameter of the metal wire is between 0.1 and 0.5 mm.

[0008] Preferably, the steel wire column in the core is made of high-strength stainless steel, and the tensile strength of the high-strength stainless steel is not less than 1200MPa.

[0009] This utility model provides a twisted steel fiber. It has the following beneficial effects:

[0010] (1) The present invention uses multiple metal wires to make the steel fibers more evenly distributed in the concrete, which enhances the anchoring and bonding with the concrete. At the same time, the connecting block is conical and the surface of the connecting block is treated to form micron-level roughness, which further improves the bonding force between the steel fibers and the concrete, effectively prevents the fibers from being pulled out under external force, and reduces the risk of the fibers being straightened, loosened or pulled out in the concrete. Attached Figure Description

[0011] Figure 1 This is a three-dimensional view of the overall structure of this utility model.

[0012] In the diagram: core 21, metal wire 22, connecting block 23. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0015] A preferred embodiment of the torsion steel fiber provided by this utility model is, for example... Figure 1 As shown: A twisted steel fiber includes a high-strength, corrosion-resistant core 21 and an outer wall covered with spirally twisted metal wires 22. The core 21 is a steel wire column. There are four metal wires 22, which are evenly distributed on the outer wall of the steel wire column. The spiral twisting direction of each metal wire 22 is opposite, and the gap between the metal wires 22 is coated with a wear-resistant polymer material layer to enhance the wear resistance of the overall structure.

[0016] Furthermore, the diameter of the metal wire 22 is between 0.1-0.5 mm, and the wire column of the core 21 is made of high-strength stainless steel, with a tensile strength of not less than 1200 MPa.

[0017] Furthermore, the end of the metal wire 22 is connected to a connecting block 23, which is conical in shape and has a surface treated to form a micron-level roughness.

[0018] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A twisted steel wire, comprising a core (21) and an outer wall covered with helically twisted metal wire (22), characterized in that: The core (21) is a steel wire column. There are four metal wires (22) in total, which are evenly distributed on the outer wall of the steel wire column. The spiral twisting direction of each metal wire (22) is opposite, and the gap between the metal wires (22) is coated with a wear-resistant polymer material layer. The end of the metal wire (22) is connected to a connecting block (23). The connecting block (23) is conical, and the surface of the connecting block (23) is treated to form a micron-level roughness.

2. The twisted steel fiber according to claim 1, characterized in that: The diameter of the metal wire (22) is between 0.1 and 0.5 mm.

3. The twisted steel fiber according to claim 1, characterized in that: The steel wire column of the core (21) is made of high-strength stainless steel, and the tensile strength of the high-strength stainless steel is not less than 1200MPa.

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