阅读说明：本技术 一种覆塑带翼微细钢纤维 (Plastic-coated winged micro steel fiber ) 是由 陈律 马堂英 于 2020-06-20 设计创作，主要内容包括：本发明公开了一种覆塑带翼微细钢纤维,呈平直形或弯钩形,包括内芯和覆塑层,内芯的表面具有拉制成形的翼板；覆塑层热压覆贴在内芯的外表面上。本发明由于覆塑层热压覆贴在内芯的外表面,具有防腐、抗酸碱、防静电、耐老化、韧性好、抗拉强度高等特点；并且翼板结构能够在混凝土浇筑振捣过程中有效降低钢纤维下沉,使钢纤维在混凝土中分散更均匀。(The invention discloses a plastic-coated winged micro steel fiber which is in a straight shape or a hook shape and comprises an inner core and a plastic-coated layer, wherein the surface of the inner core is provided with a wing plate formed by drawing; the plastic-coated layer is hot-pressed and stuck on the outer surface of the inner core. The plastic-coated layer is hot-pressed and pasted on the outer surface of the inner core, so that the invention has the characteristics of corrosion resistance, acid-base resistance, static resistance, aging resistance, good toughness, high tensile strength and the like; and the pterygoid lamina structure can effectively reduce steel fibre and sink at concrete placement vibration in-process, makes steel fibre disperse more evenly in the concrete.)

1. A plastic-coated winged micro steel fiber is in a straight or hook shape and is characterized by comprising an inner core and a plastic-coated layer,

the surface of the inner core is provided with a drawing formed wing plate;

the plastic coating layer is hot-pressed and attached to the outer surface of the inner core.

2. The plastic-coated winged micro-steel fiber as claimed in claim 1, wherein the winged plate has one or more strips.

3. The plastic-coated winged fine steel fiber as claimed in claim 2, wherein the inner core is made of copper-plated fine steel wire with tensile strength not less than 2500 MPa.

4. The plastic-coated winged micro steel fiber as claimed in claim 3, wherein the diameter of the inner core is not more than 0.3 mm.

5. The plastic-coated winged micro-fine steel fiber as claimed in claim 1, wherein the plastic-coated layer is made of PVA or PP.

6. The plastic-coated winged micro steel fiber as claimed in claim 5, wherein the thickness of the plastic-coated layer is more than or equal to 0.1 mm.

7. The plastic-coated winged micro steel fiber as claimed in claim 1, wherein the width of the winged plate is not less than 0.1mm, and the height of the winged plate is not less than 0.5 mm.

Technical Field

The invention relates to the technical field of steel fiber structures, in particular to a plastic-coated winged micro steel fiber.

Background

The steel fiber is a fiber with a length-diameter ratio of 40-80 prepared by a thin steel wire cutting method, cold-rolled strip steel shearing, steel ingot milling or molten steel rapid condensation method. The properties of the steel fibers produced by different preparation methods are different. Although steel fibers are coming out soon, the application is more and more extensive and the variety is more and more.

However, the existing steel fiber has poor performance and low strength, and the outer surface of the steel fiber is easily damaged; meanwhile, when pouring and vibrating are carried out in the thrown concrete, the sinking phenomenon is easy to occur, and dispersion disorder is caused.

Therefore, it is an urgent need to solve the problem of providing a plastic-coated winged micro steel fiber capable of uniformly dispersing in concrete.

Disclosure of Invention

In view of the above, the invention provides the plastic-coated winged micro steel fiber which has excellent performance and high strength, can overcome the sinking phenomenon of the existing steel fiber in the concrete pouring and vibrating process, and is uniformly dispersed in concrete.

In order to achieve the purpose, the invention adopts the following technical scheme:

a plastic-coated winged superfine steel fiber in the shape of straight or hook is composed of an internal core and a plastic-coated layer,

the surface of the inner core is provided with a drawing formed wing plate;

the plastic coating layer is hot-pressed and attached to the outer surface of the inner core.

Further, the wing plate has one or more strips.

Furthermore, the inner core is made of a copper-plated micro steel wire with the tensile strength not less than 2500 Mpa.

Furthermore, the diameter of the inner core is less than or equal to 0.3 mm.

Furthermore, the plastic-coated layer is made of PVA or PP materials.

Furthermore, the thickness of the plastic-coated layer is more than or equal to 0.1 mm.

Furthermore, the width of the wing plate is more than or equal to 0.1mm, and the height of the wing plate is more than or equal to 0.5 mm.

By adopting the scheme, the invention has the beneficial effects that:

1) the plastic-coated layer is hot-pressed and pasted on the outer surface of the inner core, so that the plastic-coated core has the characteristics of corrosion resistance, acid and alkali resistance, static resistance, aging resistance, good toughness, high tensile strength and the like;

2) the pterygoid lamina structure can effectively reduce steel fibre and sink at concrete placement vibration in-process, makes steel fibre disperse more evenly in the concrete.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of a plastic-coated winged micro-fine steel fiber provided by the invention.

In the figure: 1-inner core, 2-plastic coating layer and 3-wing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the embodiment of the invention discloses a plastic-coated winged micro steel fiber, which is in a straight shape or a hook shape and comprises an inner core 1 and a plastic-coated layer 2, wherein the surface of the inner core 1 is provided with a drawing-formed wing plate 3; the plastic-coated layer 2 is hot-pressed and stuck on the outer surface of the inner core 1. The plastic-coated layer 2 is hot-pressed and pasted on the outer surface of the inner core 1, so that the plastic-coated core has the characteristics of corrosion resistance, acid-base resistance, static resistance, aging resistance, good toughness, high tensile strength and the like; and 3 structures of wing plate can effectively reduce the subsidence of steel fiber in the concrete pouring and vibrating process, and the steel fiber is dispersed more evenly in the concrete.

In particular, the wing 3 has one or more strips.

Specifically, the inner core 1 is made of a copper-plated micro steel wire with the tensile strength not less than 2500 Mpa.

Specifically, the diameter of the inner core 1 is less than or equal to 0.3 mm.

Specifically, the plastic-coated layer 2 is made of PVA or PP material.

Specifically, the thickness of the plastic-coated layer 2 is more than or equal to 0.1 mm.

Specifically, the width of the wing plate 3 is more than or equal to 0.1mm, and the height is more than or equal to 0.5 mm.

The plastic-coated winged superfine steel fiber is not only suitable for ultrahigh-performance concrete with high tower load, thinner concrete slurry and easy sinking of steel fiber; the concrete is also suitable for ultra-high performance concrete members in highway bridges, railway bridges, space launching bases, ocean engineering, military bases, aircraft carriers and warships, and important part members in housing modules and engineering. Has wide application and is suitable for wide popularization and application.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.