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Preparation method of laser cladding reinforcement centrifugation roller

A technology of laser cladding and centrifugal roller, which is applied in coating, metal material coating process, etc., can solve the problems affecting the continuous production of rock wool production line, short service life of centrifugal roller, complicated working conditions, etc., and achieve excellent high temperature resistance Burning loss, not easy to crack, automatic effect

Active Publication Date: 2019-11-01
YANSHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The four-roller centrifuge is one of the core equipment in the rock wool, mineral wool, aluminum silicate board, and slag wool industries. Due to the complex working conditions, the centrifugal rollers are subjected to erosion, ablation, wear and high-speed thermal fatigue of high-temperature lava, and the service life is very long. short
[0003] During work, the temperature of the rock melt out of the furnace is often around 1460 degrees Celsius. When the melt flows to the work roll in the centrifugal roll, the temperature is between 1300-1400 degrees Celsius. The life of the centrifugal roller strengthened by surfacing stainless steel can only reach 72 hours, the service life of the centrifugal roller reinforced by traditional surfacing welding is short, which directly affects the continuous production of rock wool, mineral wool and other production lines, as well as product quality and enterprise cost

Method used

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  • Preparation method of laser cladding reinforcement centrifugation roller
  • Preparation method of laser cladding reinforcement centrifugation roller
  • Preparation method of laser cladding reinforcement centrifugation roller

Examples

Experimental program
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Effect test

Embodiment 1

[0033] This embodiment provides a method for preparing a laser cladding reinforced centrifugal roll, which includes the following steps:

[0034] 1) The processed centrifugal roll is turned along the surface of the work roll, and the amount of turning on one side is 1.0 mm.

[0035] 2) Use industrial alcohol to clean the turned surface to remove scale, impurities and oil stains.

[0036] 3) Prepare alloy powders resistant to high temperature wear and liquid magma erosion. The components are: C: 0.25%, Ni: 18%, Cr: 6%, Co: 3.2%, Al: 0.4%, WC: 5.5%, the balance is Fe, and the particle size of the powder is 135-325 mesh.

[0037] 4) Install the centrifugal roller on a high-power semiconductor laser processing machine tool, and carry out laser cladding on the surface of the working roller surface of the centrifugal roller by synchronously feeding and transporting the alloy powder in place through laser scanning. The specific process parameters are as follows: semiconductor laser ...

Embodiment 2

[0043] This embodiment provides a method for preparing a laser cladding reinforced centrifugal roll, which includes the following steps:

[0044] 1) The processed centrifugal roll is turned along the surface of the work roll, and the amount of turning on one side is 1.0 mm.

[0045] 2) Use industrial alcohol to clean the turned surface to remove scale, impurities and oil.

[0046] 3) Prepare alloy powders resistant to high temperature wear and magma erosion. The components are as follows in terms of mass percentage: C: 0.20%, Ni: 16%, Cr: 4%, Co: 3.0%, Al: 0.2%, WC: 5.2 %, the balance is Fe, and the particle size of the powder is 135-325 mesh.

[0047] 4) Install the centrifugal roller on a high-power semiconductor laser processing machine tool, and carry out surface laser cladding on the surface of the working roller of the centrifugal roller by synchronously feeding and transporting the alloy powder in place through laser scanning. The specific process parameters are as fol...

Embodiment 3

[0052] This embodiment provides a method for preparing a laser cladding reinforced centrifugal roll, which includes the following steps:

[0053] 1) The processed centrifugal roll is turned along the surface of the work roll, and the amount of turning on one side is 1.0 mm.

[0054] 2) Use industrial alcohol to clean the turned surface to remove scale, impurities and oil.

[0055] 3) Prepare alloy powders resistant to high temperature wear and magma erosion. The components are as follows in terms of mass percentage: C: 0.35%, Ni: 122%, Cr: 8%, Co: 7.2%, Al: 0.6%, WC: 5.5 %, the balance is Fe, and the particle size of the powder is 135-325 mesh.

[0056] 4) Install the centrifugal roller on a high-power semiconductor laser processing machine tool, and carry out surface laser cladding on the surface of the working roller of the centrifugal roller by synchronously feeding and transporting the alloy powder in place through laser scanning. The specific process parameters are as fo...

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Abstract

The invention provides a preparation method of a laser cladding reinforcement centrifugation roller. The preparation method of the laser cladding reinforcement centrifugation roller includes followingsteps: S1, performing pretreatment on a centrifugation roller: lathing the centrifugation roller after being processed along a work roller surface, cleaning the surface, after being lathed, of the centrifugation roller, and removing oxide skin, impurities and oil contamination; S2, compounding alloy powder resistant to high temperature abrasion and magma erosion; S3, installing the centrifugationroller on a machining tool of a high power semiconductor laser, using laser for scanning the alloy powder synchronously conveyed in place, and using the alloy powder for performing surface laser cladding on the work roller surface of the centrifugation roller; S4, performing dye penetrant inspection on a laser cladding layer, and then performing abrasive machining on the laser cladding layer; andS5, packing the centrifugation roller after being reinforced through the laser cladding for future use. The preparation method of the laser cladding reinforcement centrifugation roller uses a laser numerical control machining system, achieves automation of the reinforcement preparation process, guarantees uniformity of product quality, and prepares the reinforcement centrifugation roller which has use life reaching above 3 times of use life of a traditional bead welding stainless steel centrifugation roller.

Description

technical field [0001] The invention relates to the technical field of metal surface engineering, in particular to a preparation method of a laser cladding reinforced centrifugal roll. Background technique [0002] The four-roller centrifuge is one of the core equipment in the rock wool, mineral wool, aluminum silicate board, and slag wool industries. Due to the complex working conditions, the centrifugal rollers are subjected to erosion, ablation, wear and high-speed thermal fatigue of high-temperature lava, and the service life is very long. short. [0003] During work, the temperature of the rock melt out of the furnace is often around 1460 degrees Celsius. When the melt flows to the work roll in the centrifugal roll, the temperature is between 1300-1400 degrees Celsius. The life of the centrifugal roller strengthened by surfacing stainless steel can only reach 72 hours, the short service life of traditional surfacing welding strengthened centrifugal rollers directly aff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C38/52C22C38/06C22C38/44C22C19/05C22C19/07
CPCC22C19/053C22C19/07C22C38/06C22C38/44C22C38/52C23C24/103
Inventor 付宇明付晨张钰郑丽娟
Owner YANSHAN UNIV
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