Unlock instant, AI-driven research and patent intelligence for your innovation.

Leveling roller surface roughening processing method

A processing method and technology of leveling rolls, which are applied in the field of texturing technology, can solve problems such as low work efficiency

Active Publication Date: 2013-03-27
BAOSHAN IRON & STEEL CO LTD
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method is highly controllable, the work efficiency is extremely low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Leveling roller surface roughening processing method
  • Leveling roller surface roughening processing method
  • Leveling roller surface roughening processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The surface grinding method is used to remove the oil stain and residual stress layer on the surface of the leveling roll. The surface roughness is Ra0.36, without quenching treatment, and the surface hardness is HRC41; Reach more than 90%, the average particle size is 220 microns, the pre-bombardment is driven by high-pressure nitrogen, the pressure is 5MPa, the bombardment gas preheating temperature is 280°C, the powder particle velocity is 300m / s, and the cumulative bombardment density is 3000 pieces / mm 2 The secondary bombardment particle also adopts the alumina prepared by the atomization and chilling method, the sphericity is more than 95%, and the average particle diameter is 60 microns. The secondary bombardment adopts the mixed gas of nitrogen and helium 9:1, and the pressure is 2.0MPa. The mixed gas preheating temperature is 550°C, the powder particle velocity is 600m / s, and the cumulative bombardment density is 10,000 pieces / mm 2 , the resulting leveling roll...

Embodiment 2

[0059] The surface turning method is used to remove the oil stain and residual stress layer on the surface of the leveling roller. The surface roughness is Ra0.75, without quenching treatment, and the surface hardness is HRC39; the pre-bombardment powder particles are made of cemented carbide balls, prepared by atomization chilling method, spherical The density reaches more than 90%, the average particle size is 280 microns, the pre-bombardment is driven by high-pressure compressed air, the pressure is 12MPa, the bombardment gas temperature is room temperature, the powder particle speed is 350m / s, and the cumulative bombardment density is 2200 / mm 2 ; The secondary bombardment powder particles are prepared by mechanical crushing and grinding method of zirconia, the sphericity is above 80%, the average particle size is 30 microns, the secondary bombardment is nitrogen gas, the pressure is 2.8M Pa, the gas preheating temperature is 400°C, The speed is 630m / s, and the cumulative bo...

Embodiment 3

[0061] Polishing after surface turning is used to remove the oil stain and residual stress layer on the surface of the leveling roller. The surface roughness is Ra0.24, the surface is quenched, and the surface hardness is HRC50; the pre-bombardment powder particles are a mixture of zirconia and yttrium oxide, and the mechanical crushing and grinding method Preparation, the sphericity reaches more than 80%, the average particle size is 180 microns, the pre-bombardment uses a mixture of high-pressure nitrogen and helium with a ratio of 7:3, the pressure is 8MPa, the bombardment gas preheating temperature is 150 ° C, and the powder particle velocity 380m / s, cumulative bombardment density 3500 / mm 2 ; The secondary bombardment powder particles are made of alumina, prepared by atomization and chilling method, the sphericity is above 95%, the average particle size is 35 microns, the secondary bombardment is nitrogen gas, the pressure is 4MPa, the gas preheating temperature is 200°C, a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Average grain sizeaaaaaaaaaa
The average particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a leveling roller surface roughening processing method and relates to a thin steel plate roughening process. The leveling roller surface roughening processing method solves the problem that when an existing leveling roller performs surface roughening processing on roughened cold-rolled thin steel plates, hardness is low, and abrasion resistance is poor. The leveling roller surface roughening processing method includes the steps of leveling roller surface cleaning, preparation of corresponding powder particles for bombardment, preliminary bombardment grinding, secondary bombardment grinding, polishing processing and the like. Through the secondary bombardment grinding, small protruding platforms in random shapes can be formed on the roller surface so as to enable roller surface roughness to be adjusted conveniently, peak density is high, and good duplication can be achieved in a rolling process. In addition, a material structure of the formed small platforms is of a nanometer-level ultra-fine crystal structure, hardness is high, and abrasion resistance is good.

Description

technical field [0001] The invention relates to a texturizing process, more specifically, to a method for roughening the surface of a leveling roll. Background technique [0002] Cold-rolled thin steel sheets with special surface morphology are widely used in the automotive and home appliance industries. Textured cold-rolled thin steel sheets are rolled from roughened smooth rolls on the surface, and a series of surface morphology features have a great influence on the performance of deep drawing and coating of steel sheets, with high added value. At present, the smoothing roller texturing technology can be divided into three categories according to the processing principle: first, physical processing, including shot peening texturing technology; second, melting and vaporization processing, including EDM texturing technology, laser texturing technology and electronic Beam texturing technology; third, electrochemical processing, including surface chrome plating texturing tec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B23P17/00B24C1/06
Inventor 梁永立张俊宝张宇军沈青福刘剑史弼柯重建
Owner BAOSHAN IRON & STEEL CO LTD