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Roller and producing technique

A production process and roll technology, applied in the field of rolls and their production processes, can solve the problems of high production cost, high production difficulty, complicated process and the like, and achieve the effects of convenient operation, improved yield and reduced process steps.

Inactive Publication Date: 2008-07-16
CHANGZHOU ECCO ROLLER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to solve the problems that the roll produced by conventional materials is relatively large, the production cost is high, the process is cumbersome, and the production is difficult. The present invention provides a roll and its production process, which improves the original production. process, making the roll smaller, reducing the cost, simple process and convenient operation

Method used

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  • Roller and producing technique

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Embodiment Construction

[0015] The following takes the production of rolls of Φ25mm×430mm×490mm as an example to illustrate the process of producing rolls in detail.

[0016] The roll material is W6Mo5Cr4V2 high-speed steel, and the specific production process steps are as follows: a. Select W6Mo5Cr4V2 round steel Φ40mm×540mm, so that the bending rate of the round steel is less than 0.006. For round steel pipes with a bending rate exceeding 0.006, they should be straightened and left for hoisting holes for processing b. Processing the two ends of the blank; c. Processing the center holes at both ends; d. Rough turning at both ends of the top (see Figure 1); e. Drilling the hoisting hole Φ20mm outside the length of the finished product; f. Quality treatment to make the hardness of the roller body reach 40-50HSD; g, modify the center holes at both ends; h, the two ends of the top, semi-finishing processing (see Figure 2); i, rough grinding the roller body to Φ27.5mm~Φ27. 6mm, and then carry out ultraso...

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Abstract

The invention relates to the field of steel rolling machinery, in particular to a roller and a production process for the roller which is made of W6Mo5Cr4V2 high speed steel; the production process comprises the following steps: a. material preparation; b. the processing of two end faces of blanks; c. the processing of central holes of two ends; d. the processing of rough turn; e. the drilling of hoisting holes outside the length of finished products; f. carrying out quenching and tempering treatment to cause the roller hardness to reach 40 to 50 HSD; g. the modification of the central holes of the two ends; h. the processing of half finish turning; i. coarse grinding of the roller body; j. carrying out quenching and tempering treatment to lead the surface of the roller body to reach the quenching hardness of 88 to 93 HSD; k. the processing of the lengths of the two ends to required sizes; l. the processing of finish turning; m. the coarse grinding of the roller body and a roller neck; n. stress relief treatment; o. the repairing of the central holes of the two ends; p. fine grinding of the roller body and the roller neck; q. super grinding of the roller body and the roller neck to finished products. The roller and the production process thereof solves the problem of big size, high production cost, tedious process and great production difficulty of rollers which are produced with conventional materials.

Description

technical field [0001] The invention belongs to the field of steel rolling machinery, in particular to a roll and a production process thereof. Background technique [0002] The roll is a key tool in the production of steel rolling. It needs to withstand quite strong force and heat during work. Therefore, it is necessary to choose suitable materials and processes during manufacturing to ensure that the roll will not have problems during use. Now the materials generally used to make rolls are conventional materials such as high-speed steel or composite steel. The rolls produced by these conventional materials are relatively large, with high production costs, cumbersome processes and difficult production. Contents of the invention [0003] The technical problem to be solved by the present invention is: in order to solve the problems that the roll produced by conventional materials is relatively large, the production cost is high, the process is cumbersome, and the production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/24B23P15/00
Inventor 李仪
Owner CHANGZHOU ECCO ROLLER
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