TW201825879A - Method to measure the roughness of rolling roller to form attachments having a rough surface, and measure the roughness value of the rough surface of the attachments - Google Patents

Abstract

A method to measure the roughness of rolling roller is disclosed. First, put a plastic filler on a rolling roller surface of rolling roller, and apply pressure on the plastic filler for it to form attachments having a rough surface. Then separate the attachments and the rolling roller surface. Finally, measure the roughness value of the rough surface of the attachments, the measured roughness value is the roughness of the rolling roller surface of rolling roller. The present invention can detect the roughness of the rolling roller surface of rolling roller simply at any time, thereby proceeding the quality management of the steel surface rolling-milled by the rolling roller.

Description

Method for measuring roll roughness

The invention relates to a measuring method, in particular to a measuring method for measuring the surface roughness of a roll for rolling steel materials.

Rolls are important parts on rolling mills, rolling steel to plastically deform them. However, with the use of the rolls or the frequency of use, factors such as local spalling are generated, resulting in contact with a roll surface of the steel. The roughness becomes larger, which in turn affects the surface quality of the rolled steel. Therefore, how to detect the surface roughness of the roll in real time to maintain the quality of the rolled steel is an important issue for steel mills.

At present, most steel mills first remove the roll from the rolling mill, and then use a CNC measuring machine to measure the roll surface roughness of the roll. However, dismantling the roll is extremely labor-intensive and time-consuming, and the production process must be completely interrupted. The CNC measuring machine that can be used to measure extremely large rolls is a special specific tool, and the cost of each measurement is quite expensive.

In addition, another feasible way is to test the quality of the rolled steel by pushing back the wear status of the roll by measuring the product results, but this way the product has already been produced. If the surface roughness is not up to standard It can only be classified as scrap or reprocessed, which will increase the process trouble in vain. Furthermore, the number of rolls in the rolling mill is too large to accurately know the wear status of individual rolls.

Therefore, an object of the present invention is to provide a method for measuring the roughness of a roll, which can measure the wear condition of the roll in a rolling mill with less measurement cost without labor and time costs.

Therefore, the method for measuring the roughness of the roll of the present invention includes a step A, a step B, a step C, and a step D.

In step A, a shapeable filler is arranged on a roll surface of the roll.

In step B, pressure is applied to the shapeable filler to make it an attachment with a rough surface, wherein the rough surface is attached to the roll surface and has a surface texture and topography corresponding to the roll surface.

In step C, the adhered matter is separated from the roll surface.

In step D, the roughness value of the rough surface of the adherend is measured, and the roughness value is defined as the roughness of the roll surface of the roll.

The effect of the present invention is that the attachment with a rough surface is formed by replicating the texture and topography of the surface of the roll by the moldable filler, and then the roughness value of the rough surface of the attachment is measured to achieve a rapid speed. Low-cost measurement of individual roller wear in rolling mills.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

Referring to FIG. 1 and FIG. 2, an embodiment of a method for measuring the roughness of the roll 1 according to the present invention includes a step A, a step B, a step C, and a step D in order to measure any one of the rolling mills. The wear condition of the roll 1 as a whole or in part can be further repaired to maintain the quality of the rolled steel.

In step A, a moldable filler 2 is arranged on a roll surface 11 of the roll 1; more specifically, first, the roll 1 is cleaned with a cleaning cloth moistened with an appropriate amount of a cleaning solvent such as alcohol or acetone. A roll surface 11 that is in contact with the steel, and in particular, a local defect of the roll surface 11 can be judged empirically, for example, and the moldable filler 2 is arranged on the roll surface 11 of the roll 1 Defects, in which the shapeable filler 2 is a product of the RepliSet series produced by Struers, including a main agent composed of a silicon rubber compound, and a main agent for mixing with the main agent so that the main agent can be used over time. Varying and gradually hardening hardener.

Referring to FIG. 3 at the same time, the step B is to apply pressure to the moldable filler 2 so that it can evenly adhere to the roll surface 11, so that the moldable filler 2 forms an attachment having a rough surface 31. 3. At this time, the rough surface 31 has a surface texture corresponding to the roll surface 11 because it is in contact with the roll surface 11; preferably, the area of the rough surface 31 of the attachment 3 is much smaller than that of the roll 1 The surface area of the roll surface 11 is more preferably, the area of the rough surface 31 of the attachment 3 is not more than 25 cm 2, so that the attachment 3 is almost flat and flat with respect to the cylindrical roller 1, and It is helpful for subsequent precision measurement.

The step C is to separate and remove the attachment 3 from the roll 1 after the attachment 3 is initially hardened; in particular, the preliminary hardening refers to the rough surface 31 when the attachment 3 has been hardened to be separated from the roll 1. The surface texture and morphology of is not substantially changed by the separation and application of force, but the attachment 3 still has a little space for shaping, which is sufficient for leveling.

Referring to FIG. 4, the step D is to level the attached object 3 so that the attached object 3 after being leveled can be placed on a roughness measuring device to perform the roughness measurement of the rough surface 31. The degree value is the roughness of the roll surface 11. In particular, after the roughness value is measured by the roughness measuring device, the surface morphology of the rough surface 31 of the attachment 3 can also be measured by the roughness measuring device and the image software, as shown in FIG. 5 The three-dimensional roughness image distribution, where the Z-axis represents roughness and its unit is micrometer (mm), while the X-axis and Y-axis represent position and its unit is millimeter (mm).

In summary, the method for measuring the roughness of the roll 1 of the present invention uses the moldable filler 2 to be arranged on the roll surface 11 of the roll 1 to be detected, so as to replicate the surface texture and shape of the roll surface 11 of the roll 1 to be detected. Then, to obtain the attachment 3 having the rough surface 31, and then by measuring the roughness value of the rough surface 31, it is possible to select the roll to be detected at any time and arbitrarily in a simple manner without disassembling the roll 1. (1) The measurement of the abrasion condition of the roll (1) is performed, so the purpose of the present invention can be achieved.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

A ~ D‧‧‧step

1‧‧‧ roll

11‧‧‧ roll surface

2‧‧‧ Shapeable Filler

3‧‧‧ Attachments

31‧‧‧ rough surface

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a flowchart illustrating an embodiment of a method for measuring the roughness of a roll of the present invention; FIG. 2 is a schematic diagram To assist in explaining a step A of the embodiment of the method for measuring the roughness of the roll of the present invention; FIG. 3 is a photograph to assist in explaining an adhesion obtained when performing step C of the embodiment of the method of measuring the roughness of the roll of the present invention Figure 4 is a measurement diagram illustrating the two-dimensional roughness distribution obtained when performing step D of the embodiment of the method for measuring the roughness of a roll of the present invention; and Figure 5 is a measurement diagram illustrating the implementation of the present invention. The three-dimensional roughness image distribution obtained in the step D of the embodiment of the method for measuring the roughness of a roll of the invention.

Claims (6)

A method for measuring the roughness of a roll, comprising: (A) arranging a moldable filler on a roll surface of the roll; (B) applying pressure to the moldable filler to make it an attachment with a rough surface, Wherein, the rough surface is attached to the roll surface and has a surface texture morphology corresponding to the roll surface; (C) separating the attachment from the roll surface; and (D) measuring the rough surface of the attachment Roughness value is defined as the roughness of the roll surface. The method for measuring the roughness of a roll according to claim 1, wherein the step (D) further smoothes the adhered matter. The method for measuring the roughness of a roll according to claim 1, wherein in the step (C), the adherend is allowed to be initially hardened before being separated from the roll. The method for measuring the roughness of a roll according to claim 1, wherein in the step (A), the roll surface of the roll is cleaned before the moldable filler is arranged. The method for measuring the roughness of a roll according to claim 1, wherein in the step (B), an area of the rough surface of the adherend is much smaller than a surface area of the roll surface of the roll. The method for measuring the roughness of a roll according to claim 5, wherein in the step (B), the area of the rough surface of the adherend is not more than 25 cm 2.