阅读说明：本技术 减少热轧型钢生产用轧辊钢印粘钢的方法 (Method for reducing steel sticking of roller steel seal for hot-rolled section steel production ) 是由 汪杰 圣立芜 吴保桥 夏勐 彦井成 沈千成 吴湄庄 何军委 陈辉 彭林 邢军 于 2020-04-26 设计创作，主要内容包括：本发明公开了一种减少热轧型钢生产用轧辊钢印粘钢的方法,通过对轧辊钢印的凹槽进行倒角处理,将凹槽的两个相对的内壁面设置成V形布置,将凹槽的内壁面与轧辊外表面之间的夹角控制在55°～65°之间,将凹槽的深度控制在2mm～4mm之间。本发明的减少热轧型钢生产用轧辊钢印粘钢的方法,可以降低热轧型钢在成品机架轧辊钢印粘钢发生率,提高钢印的使用寿命,确保每一支成品的防伪标志清晰、规整。(The invention discloses a method for reducing steel sticking of a roll steel seal for producing hot-rolled section steel, which comprises the steps of chamfering a groove of the roll steel seal, arranging two opposite inner wall surfaces of the groove into a V-shaped arrangement, controlling an included angle between the inner wall surface of the groove and the outer surface of a roll to be between 55 and 65 degrees, and controlling the depth of the groove to be between 2 and 4 mm. The method for reducing the steel sticking of the roll steel seal for producing the hot rolled section steel can reduce the steel sticking rate of the hot rolled section steel on the roll steel seal of the finished product rack, prolong the service life of the steel seal and ensure that the anti-counterfeiting mark of each finished product is clear and regular.)

1. The method for reducing the steel sticking of the roll steel seal for producing the hot rolled section steel is characterized in that chamfering treatment is carried out on a groove of the roll steel seal, two opposite inner wall surfaces of the groove are arranged in a V-shaped arrangement, an included angle between the inner wall surface of the groove and the outer surface of a roll is controlled to be 55-65 degrees, and the depth of the groove is controlled to be 2-4 mm.

2. The method for reducing the sticking of a roll stamp to steel for the production of hot-rolled steel sections as claimed in claim 1, wherein the groove bottom width of the groove of the roll stamp is controlled to be between 5mm and 8 mm.

Technical Field

The invention belongs to the technical field of hot rolled section steel production, and particularly relates to a method for reducing roll steel marks for hot rolled section steel production.

Background

The mark is a mark used by people in life to indicate the characteristics of a certain thing. It uses simple, obvious and easily-recognized object image, figure or character symbol as visual language. Different enterprises have different product marks, and the same is true for section steel production enterprises. Although the product marks of different section steel production enterprises are different, the marks can be divided into two categories, namely anti-counterfeiting and identification. In order to improve the anti-counterfeiting and identification effects as much as possible, the section steel product is generally provided with two marks, one is a mark label which is adhered or sprayed on the surface of the product after the production is finished, and the other is a convex three-dimensional mark which is rolled on the surface of the product when the final rolling pass is deformed, namely a rolling steel seal.

However, when the raised three-dimensional mark is made by rolling the steel seal, grooving needs to be carried out on the surface of the roller, steel slag is difficult to fall off when being clamped into the groove, and particularly, impurities such as hard iron shavings and the like cause the mark to impact the upper guard plate of the guide, so that the upper guard plate is scratched, and further the guide scratches a rolled piece.

Patent document No. CN107900107A discloses a non-stick steel roll collar, which comprises a roll collar main body, a first roll collar shaft body, a second roll collar shaft body, a groove, and a shaft hole, and is characterized in that: the left side and the right side of the roller ring main body are respectively connected with a first roller ring shaft body and a second roller ring shaft body, a groove is formed in the roller ring main body, a shaft hole is formed in the center of the roller ring main body, and the roller ring main body, the first roller ring shaft body and the second roller ring shaft body are integrally manufactured through a spinning process. The core of the non-stick steel roll collar related to the patent is roll collar material and spinning technology, namely graphite steel is selected as the roll collar material, two roll collar shaft bodies and a roll collar main body are connected into a whole through the spinning technology, and a circle of groove is designed between the two roll collar shaft bodies, so that the non-stick steel is achieved. Therefore, the steel sticking prevention mode related to the patent is completely different from the steel sticking condition of the groove mark on the surface of the roller, so that the method is not suitable for groove-shaped slag removal during the rolling of the three-dimensional mark on the surface of the section steel product.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a method for reducing the roll steel seal for producing hot-rolled section steel, and aims to reduce the steel sticking rate of the hot-rolled section steel on the roll steel seal of a finished frame and prolong the service life of the steel seal.

In order to achieve the purpose, the invention adopts the technical scheme that: the method for reducing the steel sticking of the roll steel seal for the production of the hot rolled section steel comprises the steps of chamfering the groove of the roll steel seal, arranging two opposite inner wall surfaces of the groove into a V-shaped arrangement, controlling an included angle between the inner wall surface of the groove and the outer surface of a roll to be between 55 and 65 degrees, and controlling the depth of the groove to be between 2 and 4 mm.

The width of the groove bottom surface of the groove of the roll steel seal is controlled between 5mm and 8 mm.

The method for reducing the steel sticking of the roll steel seal for producing the hot rolled section steel can reduce the steel sticking rate of the hot rolled section steel on the roll steel seal of the finished product rack, prolong the service life of the steel seal and ensure that the anti-counterfeiting mark of each finished product is clear and regular.

Drawings

The description includes the following figures, the contents shown are respectively:

FIG. 1 is a sectional view of a roll steel seal groove of the present invention;

FIG. 2 is a perspective view of the roll steel seal of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the inventive concept and technical solution of the present invention and to facilitate its implementation.

As shown in figures 1 and 2, the invention provides a method for reducing the steel sticking of a roll steel seal for producing hot-rolled section steel, which comprises the steps of chamfering the groove of the roll steel seal, arranging two opposite inner wall surfaces g of the groove into a V-shaped arrangement, controlling an included angle between the inner wall surface of the groove and the outer surface of a roll to be between 55 and 65 degrees, and controlling the depth f of the groove to be between 2 and 4 mm.

Specifically, as shown in fig. 1 and 2, the shape of the roll embossed groove is the same as the shape of the mark to be printed on the surface of the section steel, the roll embossed groove is formed on the outer surface h of the roll, the first ends of two inner wall surfaces g of the groove are connected with the groove bottom surface of the groove, the second ends of the two inner wall surfaces g are connected with the outer surface of the roll, the first ends and the second ends of the inner wall surfaces g are opposite ends of the inner wall surfaces g, and the distance between the first ends of the two inner wall surfaces g (i.e., the width of the groove bottom surface) is smaller than the distance between the second ends of the two inner wall surfaces g, so that the groove forms a larger opening on the. The high-temperature steel slag is easy to fall off and is not easy to firmly adhere to the roller in the groove to form the bonded steel.

As shown in figure 1, the width e of the groove bottom surface of the groove of the roll steel seal is controlled to be between 5mm and 8mm, the groove bottom surface is parallel to the outer surface h of the roll, and the depth f of the groove is the vertical distance between the groove bottom surface and the outer surface h of the roll.

Preferably, the angle between the inner wall surface g of the groove and the outer surface h of the roll may be 55 °, 56 °, 57 °, 58 °, 59 °, 60 °, 61 °, 62 °, 63 °, 64 ° or 65 °; the depth f of the groove may be 2mm, 2.5mm, 3mm, 3.5mm or 4 mm; the groove bottom face width e may be 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm or 8 mm.

By arranging the roller steel seal groove in the method, the slag inclusion rate of the roller steel seal can be reduced by 32.8%, the steel sticking occurrence rate can be reduced by 64.3%, the surface scratching accidents of the product caused by steel sticking of the roller steel seal can be reduced by 78.5%, the product qualification rate is effectively improved, and the production cost is greatly reduced.

Examples 1

When the hot-rolled H-shaped steel products with the specification of H250 multiplied by 125 multiplied by 6 multiplied by 9 are produced on the production line of 5-frame rough rolling and 10-frame continuous rolling, the invention method of the patent is used, namely, the groove steel seal mark invented by the patent is engraved on the roller of the last rolling mill of the continuous rolling mill set, and the raised three-dimensional mark of the web plate of the produced H-shaped steel product is clear and regular after rolling deformation. After 1300 tons of steel seal mark grooves are accumulated, steel slag is not clamped, and the phenomenon of mark steel adhesion is not caused, so that the method effectively reduces the problem of steel adhesion of the hot-rolled section steel product roller steel seal, thereby reducing the impact of the roller steel seal on a guide and the scratch on the surface of the product.

EXAMPLES example 2

When a hot-rolled H-shaped steel product with the specification of H300 multiplied by 10 multiplied by 15 is produced on a 2-frame cogging + 3-frame universal rough rolling + 1-frame universal finish rolling production line, the invention method of the patent is used, namely, the groove steel seal mark invented by the patent is engraved on the roller of the universal finish rolling mill, and the raised three-dimensional mark of the web plate of the produced H-shaped steel product is clear and regular after rolling deformation. After 5000 tons of accumulated steel seal mark grooves are detected, steel slag is not clamped, and the phenomenon of steel sticking of marks is not generated, so that the method effectively reduces the problem of steel sticking of the hot-rolled section steel product roller steel seal, thereby reducing the impact of the roller steel seal on a guide and the scratch on the surface of the product.

The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.