Stretch-resistant hot-rolled coiled plate

Abstract

The utility model relates to the technical field of hot-rolled coil plates, and discloses a tensile hot-rolled coil plate which comprises hot-rolled strip steel and a steel L-shaped square covered edge, the steel L-shaped square covered edge is matched with the hot-rolled strip steel, an L-shaped groove matched with the hot-rolled strip steel is formed in the steel L-shaped square covered edge, the L-shaped groove is in a square shape matched with the edge of the hot-rolled strip steel, and the L-shaped groove is in a square shape matched with the edge of the hot-rolled strip steel. And a steel sealing plate matched with hot-rolled strip steel is arranged at the lower end of the L-shaped square steel covered edge. Compared with the prior art, the utility model has the advantages that the layering phenomenon can be avoided, so that the tensile property is improved, and the stability requirement of an automobile structure can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-rolled coils, in particular to a tensile-resistant hot-rolled coil. Background Art

[0002] Hot-rolled coil is an important steel variety. It is made from continuous casting billets and is heated into strip steel by rough rolling mills and finishing mills. Hot-rolled coil can be used in vehicle structures. Hot-rolled coil can be used to manufacture body structural parts, wheel hubs, etc. Due to the stability requirements of automobile structures, the tensile resistance of hot-rolled coils used to manufacture body structures is required to be high, and the heat resistance requirements during use are also high.

[0003] During the manufacturing process of hot-rolled coils, after the steel is hot-rolled, the non-metallic inclusions inside are pressed into thin sheets, which will cause delamination. The resulting delamination causes the steel to have a reduced tensile strength along the thickness direction, and interlayer tearing may occur when the weld shrinks. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The technical problem to be solved by the utility model is that the current hot-rolled coil may produce delamination during the process of being used in the manufacture of vehicle body structural parts, resulting in poor tensile strength of the manufactured structural parts, thereby failing to meet the stability requirements of the automobile structure.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a tensile-resistant hot-rolled coil, including a hot-rolled steel strip and a steel L-shaped square edging, the steel L-shaped square edging cooperates with the hot-rolled steel strip, the steel L-shaped square edging is provided with an L-shaped groove that cooperates with the hot-rolled steel strip, the L-shaped groove is a square that cooperates with the edge of the hot-rolled steel strip, and the lower end of the steel L-shaped square edging is provided with a steel sealing plate that cooperates with the hot-rolled steel strip.

[0008] As an improvement, a heat-insulating layer matching the hot-rolled steel strip is provided inside the steel L-shaped square edging.

[0009] As an improvement, the size of the steel L-shaped square edging is larger than that of the hot-rolled steel strip.

[0010] As an improvement, a reinforcing rib matching the hot-rolled steel strip is provided in the L-shaped groove.

[0011] As an improvement, a sealing strip cooperating with the heat insulation layer is provided inside the steel L-shaped square edging.

[0012] (III) Beneficial effects

[0013] The advantages of the utility model compared with the prior art are: when making hot-rolled coils, the hot-rolled strip is wrapped with a steel L-shaped square edging, and combined with a steel sealing plate and a heat insulating layer to perform composite hot rolling, thereby making a hot-rolled coil with a multi-layer structure; when in use, the steel L-shaped square edging can improve the tensile strength of the hot-rolled strip, the steel L-shaped square edging combined with the steel sealing plate can avoid stratification, and the heat insulating layer can insulate the hot-rolled strip; when made into vehicle body structural components, the components have higher stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereoscopic diagram of a tensile-resistant hot-rolled coil of the utility model.

[0015] Figure 2 It is a cross-sectional stereoscopic diagram of a tensile-resistant hot-rolled coil of the utility model.

[0016] Figure 3 It is an enlarged view of point A of a tensile-resistant hot-rolled coil of the utility model.

[0017] As shown in the figure: 1. Steel L-shaped square edging; 2. Steel sealing plate; 3. Thermal insulation layer; 4. Hot-rolled strip steel. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, a tensile-resistant hot-rolled coil comprises a hot-rolled steel strip 4 and a steel L-shaped square edging 1, wherein the steel L-shaped square edging 1 cooperates with the hot-rolled steel strip 4, and an L-shaped groove cooperating with the hot-rolled steel strip 4 is provided on the steel L-shaped square edging 1, and the L-shaped groove is a square that cooperates with the edge of the hot-rolled steel strip 4, and a steel sealing plate 2 cooperating with the hot-rolled steel strip 4 is provided at the lower end of the steel L-shaped square edging 1, and the size of the steel L-shaped square edging 1 is larger than that of the hot-rolled steel strip 4, and a reinforcing rib cooperating with the hot-rolled steel strip 4 is provided in the L-shaped groove, which can improve the tensile resistance.

[0020] Through the above structure, the hot-rolled steel strip 4 can be prevented from being delaminated, and the tensile strength can be improved. How to improve the thermal insulation performance? The specific structure is as follows:

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the steel L-shaped square edging 1 is provided with a heat insulation layer 3 matched with the hot-rolled steel strip 4, and the steel L-shaped square edging 1 is provided with a sealing strip matched with the heat insulation layer 3.

[0022] Through the above structure, the heat insulation layer 3 cooperates with the sealing strip to provide heat insulation for the hot-rolled steel strip 4 .

[0023] During the specific implementation of the utility model, after the hot-rolled steel strip is manufactured according to the conventional method, the hot-rolled steel strip is placed in an L-shaped groove of a steel L-shaped square edging of corresponding size so that it fits the inner wall of the L-shaped groove. Then, a heat insulation layer and a steel sealing plate are respectively placed at the upper end and the lower end of the hot-rolled steel strip. The multi-layer composite structure is then hot-rolled to manufacture an integrated hot-rolled coil. When the hot-rolled coil is used to manufacture vehicle body structural components, the steel L-shaped square edging cooperates with the steel sealing plate to avoid stratification of the hot-rolled steel strip. In addition, the heat insulation layer can improve the heat insulation effect of the hot-rolled steel strip during use, thereby preventing the hot-rolled steel strip from being overheated.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A tensile hot-rolled coil, characterized in that: The invention comprises a hot-rolled steel strip (4) and a steel L-shaped square edging (1), wherein the steel L-shaped square edging (1) cooperates with the hot-rolled steel strip (4), the steel L-shaped square edging (1) is provided with an L-shaped groove that cooperates with the hot-rolled steel strip (4), the L-shaped groove is a square that cooperates with the edge of the hot-rolled steel strip (4), and the lower end of the steel L-shaped square edging (1) is provided with a steel sealing plate (2) that cooperates with the hot-rolled steel strip (4).

2. The tensile hot-rolled coil according to claim 1, characterized in that: The steel L-shaped square edging (1) is provided with a heat insulation layer (3) matched with the hot-rolled steel strip (4).

3. The tensile hot-rolled coil according to claim 1, characterized in that: The size of the steel L-shaped square edging (1) is larger than the size of the hot-rolled steel strip (4).

4. The tensile hot-rolled coil according to claim 1, characterized in that: A reinforcing rib matching the hot-rolled steel strip (4) is arranged in the L-shaped groove.

5. The tensile hot-rolled coil according to claim 2, characterized in that: The steel L-shaped square edging (1) is provided with a sealing strip matched with the heat insulation layer (3).

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