JPS59202103A - Method for rolling band-or-sheet-shaped metal having partially checkered pattern continuous in rolling direction - Google Patents

Abstract

PURPOSE:To manufacture, by rolling, a band-or-sheet-shaped metal excellent in flatness and having continuous partially-checkered pattern in the rolling direction by forming a part having a projecting and recessing checkered pattern on the surface of one roll of a pair of final finishing rolls having plus crowns. CONSTITUTION:A pair of the final finishing rolls 1, 2 of finishing rolling rolls are provided with plus crowns, and also the roll 1 of one side is provided with a part A having projecting and recessing checkered pattern and a part B having no checkered pattern and slightly slenderized by providing the outer diametral difference to the whole circumference of roll gradually from the part A to both sides of roll. The quantity of rolling deformation of a material 3 to be rolled caused by the difference of ductilities between the checkered part and the flat one is absorbed and dispersed by finish rolling the material 3 by the rolls 1, 2, and a projecting and recessing checkered pattern is provided continuously in the rolling direction and partially in the direction of roll axis, as well as an excellent finished flatness, to a band-or-sheet-shaped metal product.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a metal rolling method in which a striped or plate-shaped metal surface is provided with a striped pattern continuously in the rolling direction and partially in the axial direction of the rolling roll by a rolling method.

Conventionally, band-shaped and plate-shaped metal products with striped patterns have been used for architectural materials such as interiors and efsteria from the viewpoint of design, and for architecture, civil engineering, and shipbuilding from the viewpoint of anti-slip properties such as striped copper strips and striped steel plates. It is used in large quantities as flooring material and step material for industrial machinery, etc. There are various manufacturing and processing methods for these products, including casting, pressing, and rolling, but the present invention uses a rolling method that has been mass-produced industrially, instead of adding striped patterns to the entire surface of the rolled object, which has been conventionally done. This method is intended to impart a partial striped pattern to a strip or plate metal that is continuous in the rolling direction and has a striped pattern part and a flat non-striped part in the roll axis direction.

In addition to iron, which is used in large quantities, the metals used as materials for these products include aluminum, copper, brass, and various other non-ferrous metals. We will specifically explain the products known as striped copper strips and striped steel sheets.

In the current striped copper strips and striped steel sheets, the patterns are arranged approximately evenly over the entire surface of one side, although there are slight differences in the shape and arrangement of the stripes. A patterned roll is used.

Although the rolling rolls themselves differ in roll length, diameter, material, number of stages, and method, the finishing rolls have a slight plus crown, and the striped pattern rolls for the final finishing are also similar. A plus crown is attached to the entire body.

With such a roll shape, a striped pattern that is continuous in the rolling direction and partially in the roll axis direction1 For example, a partial striped pattern of protrusions arranged alternately in a diagonal pattern in the rolling direction as shown in FIG. In order to apply a striped pattern, a partial striped pattern is engraved on the roll using the same method as the conventional roll and rolled, and a striped pattern is formed between the striped pattern part (5)' and the non-striped pattern part (B)' as shown in Fig. 4. Due to the difference in ductility of the rolled object.

Wave-like deformation appears on a part or the entire surface, and the flatness of the copper strip or steel sheet is extremely poor, which not only impairs the commercial value but also causes trouble in rolling operations.

In order to solve these problems, the present invention focuses on and improves the combination of the shape of the final finishing roll and the shape of the rolling roll just before the final finishing roll. This method has successfully rolled metal into strips or plates with an uneven striped pattern and a good finished flatness.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram of the final finishing roll in the finishing roll used in the present invention, and shows the final finishing roll (1) (
In Step 21, these rolls are formed into a plus crown in the middle, and the final finishing roll (1) is coated inside the striped portion and laterally from the striped portion in order to give a striped pattern, for example, the striped pattern shown in Fig. 4. By providing a thin non-striped pattern part (B) with a gradual outer diameter difference in the roll axis direction over the entire circumference of the roll, the finished product is passed between the final finishing rolls <i> and (2) and rolled. This is to make the stretching ratio in the roll axis direction uniform during rolling of the rolled object +31 such as a strip or plate metal.

In addition, in order to improve the precision and quality of the products manufactured by this method, especially the appearance of stripes and the flatness (c - d) of the products, a final finishing roll (
1) (Roll area extending from the roll one step before 21 (41 (51 has a minus crown centered around the roll part (a) corresponding to the striped pattern, roll part body) to the roll side end (b) By using a roll +41 (51) in which the diameter of (b) is configured to have a slope shape that gradually expands, the rolled object [3] such as a strip or plate metal to be rolled can be rolled with a striped pattern. It is also possible to consciously make the part (a)' that is applied thicker than the part (b)' that is not applied and finish it with the final finishing rolls (1) and (2).In this way, the final finishing roll of the rolled object (1) , (
Since the part where the striped part is given in 21 is slightly thicker, the striped part comes out better within the striped part, and the part between the striped parts and the part extruded as the non-striped part (B). Rolling deformation amount is roll + 4), (minus crown shape of 51,
Due to the synergistic effect with the plus crown shape of the final finishing roll (1) - (21), it is possible to sufficiently absorb the material in the roll axis direction and make the stretching ratio in the roll axis direction more uniform during rolling of the rolled object (3). can.

-6= Use (1), (21% (31, +41, (5
The degree of each roll crown in 1 differs depending on the size of the stripes imparted by the final roll, shape distribution, density and range, as well as the physical properties and thickness of the rolled object at the time of rolling,
It varies depending on the width, and also varies depending on various rolling conditions such as the pressing force and amount of deflection of the rolling roll itself.

In other words, in the one-way method, partial stripes are applied to the rolled object using only the final finishing rolls (1) and (2), or the striped pattern is applied by one step before the final finishing rolls (1) and (2). Rolls with crowns (4), (5)
Although there is a difference in whether precision and quality can be further improved by combining with
y), and the parts (d) and (d) that are extruded as non-striped areas.
By sufficiently absorbing the amount of rolling deformation in C) in the roll axis direction, the plastic deformation during rolling between the striped area (5)' and the non-striped area (B) is uniformly distributed throughout the rolled area. let me,
In addition, partially striped patterned products (those that can ensure finished flatness).

According to the metal rolling method of the present invention, by using a rolling method that can be industrially mass-produced, instead of forming a striped pattern on the entire surface of the rolled object as in the conventional method, it is possible to form a strip or a plate as shown in Fig. Q and Fig. S. A belt-shaped or plate-shaped metal product (3)' that is continuous in the rolling direction of the strip and has a striped pattern and a flat surface with no pattern partially in the direction of the roll axis (3r can be formed, and the striped part and the non-striped part can be formed. A product with extremely good flatness can be produced with little wavy deformation and thickness deviation due to the imbalance of elongation and compressive stress during rolling with the patterned part.

Figure 6 shows an example of a step material (61) in which a band-shaped or plate-shaped metal with a partially striped pattern is processed using this method.
FIG. 7 shows an example processed as a power floor material (7).

Furthermore, the pattern to be applied is not limited to the one shown here, but can also be applied to a wide variety of other designs.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view of a final finishing roll of the finishing roll used in the method of the present invention, Fig. 1 is a schematic front view of a roll one stage before the final finishing roll used in combination with the final finishing roll, and Fig. 3 The figure is an enlarged cross-sectional view of a metal that has been given a partial stripe pattern using this method, Figure 4 is a partial plan view of a metal that has also been given a partial stripe pattern, and Figure S is an example in which a partial stripe pattern has been given in two stripes. FIG. 6 is a partial plan view of the metal material shown in FIG. FIG. (1), (21... final finishing roll, (3)... rolled object, (4) (5)... roll, (A)... striped pattern part, (B)... non-striped pattern part, (a)...Roll portion corresponding to the striped pattern portion. 9- Showa Str. Patent Application No. 7SSST No. 2
Title of the invention Method for rolling metal in the form of a band or plate having a continuous partial striped pattern in the rolling direction 3 Relationship with the case of the person making the amendment Patent applicant address (residence) 1-1-6 Funamachi, Taisho-ku, Osaka-shi, Osaka Prefecture
No. 6 Naka Yama Seikora V Date Name: Nakayama Steel Works Co., Ltd. 4, Agent address: 6, 1-2-25 Kitahorie, Nishi-ku, Osaka, subject of amendment: Section 7 of the detailed description of the invention in the specification , Contents of the amendment As shown in the attached document Amendment l *In the first line of page 7 of the application specification, "(1),
(3), (4), (51J is r (]), t2
r, (41, (5)”).

Claims (1)

[Claims] l In the finishing rolling roll, a pair of final finishing rolls has a plus crown, and one roll has an uneven striped pattern portion to impart a striped pattern. By providing a slightly narrower non-striped area with a gradual outer diameter difference over the entire circumference of the roll from the striped area to the side, the striped area and the non-striped area of the rolled object are separated. It is characterized by absorbing and dispersing the amount of deformation during rolling due to the difference in ductility from a flat surface in the roll axis direction, and imparting a strip or plate metal with a continuous and partial striped pattern in the rolling roll axis direction. A method of rolling metal in the form of a band or plate having a continuous partial striped pattern in the rolling direction. 2. In the finishing rolls, a pair of final finishing rolls has a plus crown, and one of the rolls has an uneven striped pattern portion (5) that imparts a striped pattern. A final finishing roll is provided with a non-striped pattern part (B) that has a gradual outer diameter difference over the entire circumference of the roll from the striped pattern part to the side, and a final finishing roll that is 7 stages before the final finishing roll. A portion corresponding to the striped pattern portion (5) where a striped pattern is imparted to a pair of rolling rolls by a final finishing roll (
Roll + that gave a minus crown mainly on a)
By rolling using 41 (5), the amount of deformation during rolling due to the difference in ductility between the striped part and the flat surface of the non-striped part of the rolled object is absorbed and dispersed in the roll axis direction. 1. A method for rolling a metal strip or plate having a partial striped pattern continuous in the rolling direction, the method comprising imparting a striped or plated metal with a partial striped pattern continuous in the rolling direction and partially in the axial direction of the rolling roll.