Treatment method of roller neck surface

Abstract

The invention discloses a treatment method of a roller neck surface. The method includes the specific steps that the center portion of a roller neck is heated at the temperature ranging from 600 DEG C to 700 DEG C, after the center portion is heated, the temperature is kept for 2 to 3 hours, and the outer edge portion of the roller neck is treated through a surface treating agent; and the outer edge portion of the roller neck is treated in the process that firstly, the outer edge of the roller neck is evenly coated with the surface treating agent, the roller neck and a roller body are assembled and placed in a vibrator to be fixed and then shake for 3 minutes to 5 minutes at 700 r / m, and finally the end, close to the roller neck, of the surface of the roller body is heated at the temperature ranging from 550 DEG C to 650 DEG C, wherein the surface treating agent comprises 5 g / L to 30 g / L of polyethylene glycol, 1 g / L to 5 g / L of titanium sulfate, 2 g / L to 8 g / L of phosphoric acid, 1 g / L to 20 g / L of sodium metavanadate, 2 g / L to 8 g / L of tartaric acid, 4 g / L to 11 g / L of malic acid, 4 g / L to 15 g / L of ammonium fluoride, 1 g / L to 6 g / L tungstic acid and 7 g / L to 13 g / L of lactic acid zirconium. By the adoption of the method, a roller is resistant to abrasion and corrosion and is provided with the surface with the good tensile property, it is guaranteed that the connection performance of the roller neck and the roller body is stable, shake is reduced, the noise is low in the rolling process, the rolled product quality is guaranteed, and the safety of the production process is guaranteed as well.

Description

technical field [0001] The invention relates to a treatment method for the roll neck surface. Background technique [0002] The rolling mill uses the pressure generated when the roll rolls to roll the rolled material and make the metal of the rolled material plastic. The roll is an important consumable part that determines the efficiency of the rolling mill and the quality of the rolled material. The roll includes the roll head, roll neck and roll body. In order to increase the The surface strength of the roll neck can be improved to prevent the roll neck from breaking during operation. In the prior art, the roll neck surface will be treated. Although these treatment methods can prevent the roll neck from breaking at the center, the treatment effect on the joint between the roll neck and the roll body is average, and the long-term Time adopts the processed roll in the prior art, and the roll will produce jumping, which affects the rolling accuracy, and even disconnects the c...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the processed rolls in the prior art are used for a long time, the rolls will jump and affect the rolling accuracy, and even the connection between the roll neck and the roll body is severed, resulting in production accidents.