Porous abrasive disks and preparation thereof

A manufacturing method and technology of grinding discs, which are applied in the direction of manufacturing tools, abrasives, grinding devices, etc., can solve the problems of hidden dangers of workers' work safety, low impact resistance strength and rotational damage strength, and non-environmental protection, so as to eliminate safety hazards and excellent The effect of dimensional stability

Inactive Publication Date: 2009-07-29
SUNTEK INDUSTRIES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, this traditional grinding disc has low impact resistance and low rotational damage strength in the grinding process, and the corners of the grinding surface or sharp impacts will produce debris, which poses a safety hazard to workers, and due to the generation of glass fiber dust, it will It causes workers to have a hot feeling on the skin or is harmful to the human body, which is not environmentally friendly.

Method used

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  • Porous abrasive disks and preparation thereof
  • Porous abrasive disks and preparation thereof
  • Porous abrasive disks and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1 sheet with 25g / m 2 Moisture-proof paper (product of Ji-Sung Cultural Industry Co., Ltd.) with weight and thickness of 0.05 mm, cut into a size of 112 mm in outer diameter and 23 mm in inner diameter; put 2 sheets in phenolic resin KRD-745 (product of Kolon Petrochemical Co., Ltd.) according to 138.0± 1.0g / m 2 A double-layer gauze weave with a fiber thickness of 12 / 2×8 / 2 (warp×weft) s / yarn and 16×8 (warp×weft) count / inch made by impregnating and drying polyester fiber fabric (product of Hwail Industrial Co.); and 1 piece of fiber thickness of H45 1 / 3×H45 1 / 3 (warp×weft) tex / yarn made by impregnating phenolic resin and drying as above Degree and 8×8 (warp×weft) count / inch leno weave carbon fiber fabric (product of Korean Fiber Company), cut into sizes of 180mm in outer diameter and 23mm in inner diameter respectively.

[0031] Next, the "F" specification Al 2 o 3100g, powdery phenolic resin (Novolak) 1364K (Kangnam Chemical company product) 13.5g and liquid state ph...

Embodiment 2

[0034] In addition to the polyester fiber fabric and carbon fiber fabric, respectively in phenolic resin KRD-745 according to 150.0±1.0g / m 2 The amount impregnated, and the polyester fiber fabric has 10 * 10 (warp * weft) count / inch double-layer leno weave structure, other processes of manufacturing porous grinding discs are the same as the above-mentioned embodiment 1.

Embodiment 3

[0036] In addition to the polyester fiber fabric and carbon fiber fabric, respectively in phenolic resin KRD-745 according to 127.0±1.0g / m 2 The amount impregnated, and polyester fiber fabric has the fiber thickness of 12 / 2 * 12 / 2 (warp * weft) s / yarn, other processes of manufacturing porous grinding disc are the same as above-mentioned embodiment 1.

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Abstract

The invention relates to a porous abrasive disk and method for manufacturing the same. The abrasive disk comprises laminated damp-proof paper, more than one carboform leno layer permeating a first thermosetting resin and more than one chemical fibre leno layer for dispersing coating abrasive after permeating a second thermosetting resin. As a result of the structure of leno layer, the invention has the advantages of porosity, stable size, excellent spin burst strength and impact-resistant strength, safety, environment protection and benefit for abrading work.

Description

technical field [0001] The invention relates to a safe and environment-friendly porous grinding disc with excellent dimensional stability, rotation breaking strength and impact resistance strength and a manufacturing method thereof. Background technique [0002] Grinding discs mostly consist of fiberglass fabric layer structures. figure 1 Cross-sectional structure of a grinding disc with a fiberglass fabric layer made using traditional techniques. figure 1 The traditional grinding disc that uses glass fiber fabric as a reinforcing material is sprayed with slurry containing abrasive on the disc-shaped glass fiber fabric layer impregnated with thermosetting resin, and after pre-drying, the glass fiber fabric layer coated with abrasive is obtained. , laminate black kraft paper and 2 above-mentioned fiberglass fabric layers on a mold frame with a curved surface shape, heat and press. [0003] However, this traditional grinding disc has low impact resistance and low rotational ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D11/00B24D13/14
CPCB24D3/28B24D11/00B24D18/0045
Inventor 金正运
Owner SUNTEK INDUSTRIES LTD
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