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Novel roller surfacing process

A roll and process technology, applied in the field of new roll surfacing technology, can solve the problems of surface pitting, affecting production efficiency, roll cracking, etc., so as to improve wear resistance and impact resistance, ensure product surface quality, and improve The effect of single-groove steel passing

Inactive Publication Date: 2019-01-01
ZENITH STEEL GROUP CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Bearing steel, spring steel, medium-high alloy steel and other high-quality special steel products have strict requirements on surface and internal quality, and the quality requirements of rolls in the rolling production process are relatively high, especially the rolls of the roughing mill, which are subjected to large reductions and large impacts Therefore, the rolls often have problems such as cracks, meat loss, and severe thermal cracks, which lead to serious quality problems such as pockmarks and cracks on the surface of the rolled material. During the production process, the rolls of the roughing mill need to be changed frequently, which affects production. efficiency

Method used

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Embodiment Construction

[0021] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0022] Such as figure 2 A new roll surfacing process shown is the best embodiment of the present invention, which is used to process the roll pass on the roll base. figure 2 The lowest temperature in is normal temperature.

[0023] First of all, it is necessary to process a grooved rolling groove on the substrate. The pass roll groove includes a pass groove bottom 1, a pass side wall 2 located on both sides of the pass groove bottom 1, and a pass R arc 3 connecting the pass groove bottom 1 and the pass side wall 2.

[0024] Then include the following processing steps:

[0025] A. Substrate preheating, the substrate preheating temperature is 200℃±10℃;

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Abstract

The invention provides a novel roller surfacing process. Layered surfacing is carried out on a roller by using welding sticks made of various materials, bottom-layer surfacing facilitates welding fusion with a base body, upper-layer surfacing is a working layer, the wear resistance and impact resistance of the roller can be effectively improved, the service life of a roller hole model is effectively prolonged, hole model processing is facilitated, the single-slot steel passing quantity is improved, the production efficiency is effectively improved, and the surface quality of products is improved.

Description

technical field [0001] The invention relates to the technical field of steel bar production, in particular to a novel roller surfacing process. Background technique [0002] Bearing steel, spring steel, medium-high alloy steel and other high-quality special steel products have strict requirements on surface and internal quality, and the quality requirements of rolls in the rolling production process are relatively high, especially the rolls of the roughing mill, which are subjected to large reductions and large impacts Therefore, the rolls often have problems such as cracks, meat loss, and severe thermal cracks, which lead to serious quality problems such as pockmarks and cracks on the surface of the rolled material. During the production process, the rolls of the roughing mill need to be changed frequently, which affects production. efficiency. Contents of the invention [0003] The technical problem to be solved by the present invention is: in order to solve the deficie...

Claims

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Application Information

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IPC IPC(8): B23K31/02B23P15/00
CPCB23K31/02B23P15/00
Inventor 许加陆来永彪沈艳袁树宝
Owner ZENITH STEEL GROUP CORP
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