Rapid remanufacturing method of continuous casting machine roller

A continuous casting machine and remanufacturing technology, which is applied in the field of mechanical processing and metal surface treatment, can solve the problems of continuous casting machine roller service life not significantly improved, large amount of machining and turning, waste of alloy materials, etc., and achieve outstanding economic benefits and Social benefits, small workpiece deformation, and the effect of reducing the cost of iron and steel enterprises

Inactive Publication Date: 2018-07-27
天津北基新激光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to these traditional processes, due to the relatively coarse structure of the surfacing alloy and the large heat-affected zone, the service life of the repaired continuous casting machine rollers has not been significantly improved. Large waste of material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The invention provides a method for rapid remanufacturing of continuous casting machine rolls, comprising the following steps:

[0028] (1) According to the wear condition, turn the roller surface of the continuous casting machine by 2mm on one side to remove the cracks, fatigue layer and rust on the roller surface of the continuous casting machine;

[0029] (2) Carry out submerged arc surfacing welding on the roller surface of the continuous casting machine after turning. The welding wire is D506 welding wire with a diameter of 3.2mm. The submerged arc welding flux is SJ107 flux. 140mm / min, the thickness of surfacing welding on one side is 3mm, and blowing air is used to cool after surfacing;

[0030] (3) Machining and remodeling of the roller surface of the continuous casting machine after surfacing, the diameter of the continuous casting machine roller after machining is 0.4mm smaller than the original design value;

[0031] (4) polishing the roller surface of the c...

Embodiment 2

[0039] The invention provides a method for rapid remanufacturing of continuous casting machine rolls, comprising the following steps:

[0040] (1) According to the wear condition, turn the roller surface of the continuous casting machine by 10mm on one side to remove the crack, fatigue layer and rust on the roller surface of the continuous casting machine;

[0041] (2) Carry out submerged arc surfacing welding on the roller surface of the continuous casting machine after turning. The welding wire is D506 welding wire with a diameter of 3.2mm. The submerged arc welding flux is SJ107 flux. The current control is: 120A. 220mm / min, the thickness of surfacing on one side is 12mm, and it is cooled by blowing air after surfacing;

[0042] (3) Machining and remodeling of the roller surface of the continuous casting machine after surfacing, the diameter of the continuous casting machine roller after machining is 0.4mm smaller than the original design value;

[0043] (4) polishing the ...

Embodiment 3

[0051] The invention provides a method for rapid remanufacturing of continuous casting machine rolls, comprising the following steps:

[0052] (1) According to the wear condition, turn the roller surface of the continuous casting machine by 6mm on one side to remove the crack, fatigue layer and rust on the roller surface of the continuous casting machine;

[0053](2) Carry out submerged arc surfacing welding on the roller surface of the continuous casting machine after turning. The welding wire is D506 welding wire with a diameter of 3.2mm. The submerged arc welding flux is SJ107 flux. 160mm / min, unilateral surfacing thickness is 8mm, after surfacing, blowing air is used for cooling;

[0054] (3) Machining and remodeling of the roller surface of the continuous casting machine after surfacing, the diameter of the continuous casting machine roller after machining is 0.4mm smaller than the original design value;

[0055] (4) polishing the roller surface of the continuous casting...

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Abstract

The invention provides a rapid remanufacturing method of a continuous casting machine roller. The method comprises steps as follows: the continuous casting machine roller is subjected to unilateral turning; submerged arc surfacing is performed; machining replication is performed; roller surface polishing and cleaning are performed; magnetic particle flaw detection and ultrasonic flaw detection areperformed; the continuous casting machine roller is coated with an oil film; the oil film is coated with alloy powder; an alloy powder coating is subjected to laser scanning, and a clad alloy layer is formed; surface dye penetrant inspection is executed; the qualified continuous casting machine roller after inspection is the remanufactured continuous casting machine roller. According to the method, the alloy powder is sprayed to the continuous casting machine roller, the alloy clad layer is formed on the surface of the roller with the laser cladding technology, so that remanufacturing of thecontinuous casting machine roller is realized, the service life of the roller can be prolonged, service efficiency can be improved, and cost of an iron and steel enterprise can be reduced; the methodhas the advantages of simple technology, high controllability, energy-saving and environment-friendly performance, low cost and the like.

Description

technical field [0001] The invention relates to the technical field of mechanical processing and metal surface treatment, in particular to a rapid remanufacturing method for continuous casting machine rollers. Background technique [0002] The continuous casting machine roller is one of the key components on the continuous casting machine, which directly affects the flatness and quality of the billet. With the rapid development of modern industry, there are more and more types of steel products, and alloy steel materials are used more and more widely. Correspondingly, the requirements for the use of continuous casting machine rolls in continuous casting production are also getting higher and higher: continuous casting machine rolls must have Good high temperature wear resistance and thermal fatigue resistance. In actual working conditions, the rollers of the continuous casting machine repeatedly bear the hot compressive stress of the high-temperature billet and the alternat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00B23P15/00
CPCB23P6/00B23P15/00
Inventor 张文秀
Owner 天津北基新激光科技有限公司
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