Method and apparatus for roll grinding

A roll and grinding wheel technology, which is used in the field of roll grinding and devices, can solve the problem of increasing the total time, and achieve the effects of increasing consistency, long wheel life, and long roll life

Inactive Publication Date: 2012-10-10
SAINT GOBAIN ABRASIVES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the grinding wheel must leave the grinding zone for dressing, the roll grinding is interrupted, increasing the total time required to produce a clean roll

Method used

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  • Method and apparatus for roll grinding
  • Method and apparatus for roll grinding
  • Method and apparatus for roll grinding

Examples

Experimental program
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example

[0130] In one instance, using the Figure 5A and 5B A single type wheels and a continuous dressing arrangement to process 1400 rolls. About 0.12 mm was removed from the roll radius at a material removal rate (MRR') of 12 mm3 / s / mm. The G ratio is about 35 and the total processing time is about 15 minutes. The wheel works on all profiles and a desired Ra can be achieved by varying the speed of the wheel.

[0131] In another example, a single type of wheel, such as Figure 5A and 5B Trimming as shown in , 60 rolls were machined and about 0.2mm was removed from the roll radius with an MRR' of 5mm3 / s / mm. The G ratio is about 2. The grinding wheel works on all profiles and a desired Ra can be achieved by varying the speed of the wheel.

[0132] In yet another instance, such as Figure 5A and 5B A single Quantum grinding wheel (organic size) shown in Figure 1 was dressed, 250 rolls were machined, and about 0.25mm was removed on the roll radius. The MRR' is 8mm3 / s / mm and...

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Abstract

In one aspect, a process for roll grinding employs a grinding wheel that is porous and permeable. In another aspect, a process for grinding mill rolls includes dressing the grinding wheel as the wheel traverses the surface of a mill roll. Other aspects relate to a system, e.g., a mill roll grinding machine, or parts thereof, in which a dressing tool contacts the wheel as the wheel grinds the surface of the mill roll. In specific examples, the wheel and a rotary dressing tool are maintained in contact as the wheel traverses the surface of the mill roll.

Description

[0001] related application [0002] This application claims the benefit under 35 USC 119(e) of US Provisional Application No. 61 / 179,518, filed May 19, 2009, which is hereby incorporated by reference in its entirety. Background technique [0003] Rolling refers to a manufacturing process in which a material, such as a metal, is passed through at least one pair of rolls. The rolls used in the surface finishing of sheet metal are generally large (e.g., 7 feet long by 2 feet in diameter) metal rolls, which may be made of forged steel, difficult-to-grind high-speed steel, or have different Cr levels made of ICDP steel. The manufacture of these rolls often involves a cylindrical grinding process called (roll) grinding, in which a bonded grinding wheel is passed back and forth across the surface of the roll on a dedicated roll grinder to grind the surface of the roll and Make it smooth. [0004] Some of the challenges presented by the roll grinding process relate to the surface ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B5/37B24B53/04B24D3/00
CPCB24B53/053B24B5/167B21B28/04B24B5/37
Inventor P·凯泽C·胡贝尔
Owner SAINT GOBAIN ABRASIVES INC
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