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Abrasive articles including soft shaped abrasive particles

A technology for abrasive products and abrasive particles, which is applied in the field of using abrasive products and preparing abrasive products, can solve problems such as inability to selectively grind workpieces, and achieve the effect of reducing the risk of fire or explosion

Active Publication Date: 2020-12-18
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Typical abrasive articles are not capable of selectively grinding a single material of a workpiece

Method used

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  • Abrasive articles including soft shaped abrasive particles
  • Abrasive articles including soft shaped abrasive particles
  • Abrasive articles including soft shaped abrasive particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] Using equipment such as that available under the trade designation "RANDO WEBBER" from the Rando Machine Company of Macedon, New York, to form 2 Lofty, random airlaid web of a blend of 90% F1 and 10% F2 by weight. The webs were further needle punched, rolled in a knitting machine, and a pre-bond coat of the composition shown in Table 1 was applied to the airlaid fabric to achieve about 274 g / m 2 dry added weight. The pre-bond is then cured in an oven. at about 579g / m 2 A dry add-on weight of make coat precursors having the compositions shown in Table 1 was applied to pre-bonded airlaid webs. Formed urea-formaldehyde particles MIN at about 347g / m 2 An additional weight of 100 oz. was applied to the uncured make coat precursor, via particle drops, on each side of the make coat-coated web. The abrasive coated web was then cured in an oven. A size coat precursor of the composition shown in Table 1 was applied to the abrasive coated web to provide about 420 g / m 2 The ...

Embodiment 2

[0111] Formed using "RANDO WEBBER" equipment with about 293g / m 2 Lofty, random airlaid webs of F3 weights. The web was further needled into a scrim in a knitting machine, rolled, and ground at about 290 g / m 2 A dry add weight of make coat precursors having the compositions shown in Table 1 was applied to the airlaid fabric. Formed urea-formaldehyde particles MIN at about 323g / m 2 An additional weight of 100 Å was applied to the uncured make coat precursor, via particle drops, onto the top side of the make coated web. The abrasive coated web was then cured in an oven. A size coat precursor of the composition shown in Table 1 was applied to the abrasive coated web to provide about 258 g / m 2 The dry size layer is added by weight, and the additional layer precursor is subjected to final curing in an oven. Figure 10 is a photograph of a fibrous abrasive article of the present invention. Figure 11 and Figure 12 Photographs of the fibrous abrasive article at 20X and 50X mag...

Embodiment 3

[0113] is commercially available from 3M Company under the trade designation 3M SCOTCH-BRITE SURFACE CONDITIONING DISC ACRS but has a weight of about 798 g / m without slurry coating 2 The air-laid needle-punched nonwoven fabric was further coated with a make coat precursor having the composition shown in Table 1 at about 355 g / m 2 of dry add weight is applied to airlaid, stamped and coated fabrics. Formed urea-formaldehyde particles MIN at about 226g / m 2 An additional weight of 100 Å was applied to the uncured make coat precursor, via particle drops, onto the top side of the make coated web. The abrasive coated web was then cured in an oven. A size coat precursor of the composition shown in Table 1 was applied to an abrasive coated web to provide about 246 g / m 2 The dry size layer is added by weight, and the additional layer precursor is subjected to final curing in an oven. Figure 13 is a photograph of a fibrous abrasive article of the present invention. Figure 14 and ...

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Abstract

The present disclosure provides an abrasive article. The abrasive article includes a base. The abrasive article further includes a plurality of soft shaped abrasive particles distributed about the base.

Description

Background technique [0001] Abrasive articles such as abrasive belts, sheets and wheels can be used to abrade workpieces. However, some workpieces are composed of multiple materials. Typical abrasive articles are not capable of selectively abrading a single material of a workpiece. Accordingly, there is a need to develop abrasive articles capable of selectively abrading workpiece materials. Contents of the invention [0002] The present disclosure provides an abrasive article. The abrasive article includes a base. The abrasive article also includes a plurality of soft shaped abrasive particles distributed about the base. [0003] The present disclosure also provides a method of using an abrasive article. The abrasive article includes a base. The abrasive article also includes a plurality of soft shaped abrasive particles distributed about the base. The method includes contacting the abrasive article with a workpiece. The method also includes moving at least one of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14B24D11/00B24D11/02
CPCB24D5/12B24D5/14B24D11/02B24D13/147B24D2203/00C09K3/1409C08K3/04C08K3/26C08K3/346C08K3/36C08K2003/265C08K2003/343C08K2201/005C08K7/00C08K2201/009B24D11/005
Inventor 斯科特·M·梅菲森马克·A·卢科夫斯基托马斯·J·纳尔逊凯莉·R·施马尔迈汉·T·特隆
Owner 3M INNOVATIVE PROPERTIES CO
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