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Systems and methods for making abrasive articles

A technology for abrasive products and abrasive particles, which is applied in the field of abrasive products and can solve the problems of high cost and infeasible abrasive particles.

Active Publication Date: 2019-10-08
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, electrostatic coating is more expensive than drop coating and may not be feasible for all types of abrasive grains (e.g., it may be difficult to consistently electrostatically coat relatively large abrasive grains)

Method used

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  • Systems and methods for making abrasive articles
  • Systems and methods for making abrasive articles
  • Systems and methods for making abrasive articles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0079] Figure 8 is a simplified illustration of a portion of a system 220 for making abrasive articles including a plurality of rings 270 ( Figure 9 ) and wall 290 ( Figure 9 ) distribution means 222 of the grid. Figure 9 yes Figure 8 A perspective view of the dispensing device 222, showing the aligned rings 270 and intersecting walls 290. Figure 10 yes Figure 9 A side view of the dispensing device 222 of , showing a plurality of intersecting walls 290 disposed in aligned rings 270 .

[0080] Figure 8 Shown is a portion of a system 220 for manufacturing abrasive articles according to the principles of the present disclosure, the system 20 including a dispensing device 222 along with other components or devices commonly employed in the manufacture of abrasive articles. For example, the manufacture of abrasive articles conventionally includes structures and mechanisms (eg, rollers, conveyor belts, etc.) for moving the backing construction web 224 along a path of tr...

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PUM

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Abstract

In methods and systems of making an abrasive article, abrasive particles are loaded to a distribution tool including a plurality of upper walls defining a plurality of spacing slots, and a plurality of lower walls defining a plurality of distribution slots. The spacing slots are open to the distribution slots, which are open to a lower side of the tool. The loaded particles are spaced and distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool in a machine direction. The upper walls space the particles in the machine direction. The particles distributed by the lower walls undergo an orientation sequence in which each particle is oriented into a column aligned along the machine direction. The upper walls can be disposed oblique to the lower walls. The upper and lower walls can have pointed upper portions.

Description

Background technique [0001] The present disclosure relates to abrasive articles. More particularly, the present disclosure relates to tools, systems, and methods for arranging abrasive particles on a backing as part of making an abrasive article. [0002] Generally, coated abrasive articles have an abrasive layer secured to a backing. The abrasive layer contains abrasive grains and a binder that secures the abrasive grains to the backing. A general type of coated abrasive article has an abrasive layer consisting of a make coat or make coat, a size coat or coat and abrasive grains. In preparing such coated abrasive articles, a make layer precursor comprising a curable make resin is applied to a major surface of the backing. The abrasive grains are then at least partially embedded in the curable make resin, and the curable make resin is at least partially cured to adhere the abrasive grains to the major surface of the backing. A size layer precursor comprising a curable size...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D11/00B24D3/28C09K3/14
CPCB24D3/28B24D18/0072C09K3/1409B24D2203/00B24D11/001B24D3/346B24D11/005
Inventor 刘玉阳李军廷杰弗里·I·威尔逊欧内斯特·L·瑟伯
Owner 3M INNOVATIVE PROPERTIES CO