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Flexible urea resin grinding apparatus and preparation method thereof

A technology of urea-formaldehyde resin and urea-formaldehyde resin glue, which is applied in the direction of grinding/polishing equipment, abrasives, grinding devices, etc., can solve the problems of shortage, high cost, and dependence on imported polishing abrasives, and achieve high grinding efficiency and production efficiency High, good self-sharpening effect

Inactive Publication Date: 2015-06-17
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many reports on the application of various new resins such as unsaturated polyester resin, polyurethane, polyvinyl alcohol, etc. in abrasive tools, but there is a problem of high cost
At present, most of the fine grinding and polishing abrasive tools used in the market for materials such as stainless steel, magnesium plates, and copper rollers rely on imports, and there is a lack of such products in China.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The flexible urea-formaldehyde resin abrasive tool of the present embodiment is an outer diameter of 200 mm, a thickness of 50 mm, and a flat grinding wheel abrasive tool of an inner diameter of 50 mm, which is made of the following raw materials: 1000 g of urea-formaldehyde resin glue with a solid content of about 50%, 1000 g of silicon carbide, and a mass concentration of 5% PVA solution 90g, tributyl phosphate 10g, formalin 10g, sodium lauryl sulfonate 0.5g, curing agent 30g, hemihydrate gypsum 60g, water 120g; % hydrochloric acid and ammonium chloride solution with a mass concentration of 20% are mixed according to a volume ratio of 4:1.

[0022] The preparation method of the grinding tool of the present embodiment comprises the following steps:

[0023] Step 1, 0.5g sodium dodecyl sulfonate is dissolved in 120g water, then add 1000g urea-formaldehyde resin glue and 90g mass concentration to the solution after dissolving is the PVA solution of 5%, stir evenly, then ...

Embodiment 2

[0029] The flexible urea-formaldehyde resin abrasive tool of the present embodiment is an outer diameter of 200 mm, a thickness of 50 mm, and a flat emery wheel abrasive tool of an inner diameter of 50 mm, which is made of the following raw materials: 1000 g of urea-formaldehyde resin glue with a solid content of about 46%, 1100 g of silicon carbide, and a mass concentration of 80g of PVA solution of 8%, tributyl phosphate 8g, formalin 15g, sodium lauryl sulfonate 0.2g, curing agent 40g, hemihydrate gypsum 50g, water 100g; Described curing agent is 16 by mass concentration % hydrochloric acid and ammonium chloride solution with a mass concentration of 18% are mixed according to a volume ratio of 5:1.

[0030] The preparation method of the grinding tool of the present embodiment comprises the following steps:

[0031] Step 1, 0.2g sodium dodecyl sulfonate is dissolved in 100g water, then add 1000g urea-formaldehyde resin glue and 80g mass concentration to the solution after dis...

Embodiment 3

[0037] The flexible urea-formaldehyde resin abrasive tool of this embodiment is an outer diameter of 250mm, a thickness of 25mm, and a flat emery wheel abrasive tool of an inner diameter of 32mm, made of the following raw materials: 1000g of urea-formaldehyde resin glue with a solid content of about 55%, 900g of silicon carbide, and a mass concentration of 2% PVA solution 100g, tributyl phosphate 15g, formalin 8g, sodium lauryl sulfonate 0.8g, curing agent 20g, hemihydrate gypsum 80g, water 150g; % hydrochloric acid and ammonium chloride solution with a mass concentration of 22% are mixed according to a volume ratio of 3:1.

[0038] The preparation method of the grinding tool of the present embodiment comprises the following steps:

[0039]Step 1, 0.8g sodium dodecyl sulfonate is dissolved in 150g water, then add 1000g urea-formaldehyde resin glue and 100g mass concentration to the solution after dissolving is the PVA solution of 2%, stir evenly, then to the PVA solution after...

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Abstract

The invention discloses a flexible urea resin grinding apparatus. The flexible urea resin grinding apparatus is prepared by adopting the following raw materials in parts by weight: 1000 parts of urea-formaldehyde resin adhesive, 800 to 1200 parts of silicon carbide, 50 to 150 parts of PVA solution with mass concentration of 2 to 8 percent, 5 to 20 parts of tributyl phosphate, 5 to 20 parts of formalin, 0.1 to 1 part of sodium dodecyl sulfate, 10 to 60 parts of solidifying agent, 20 to 100 parts of hemihydrate gypsum and 50 to 200 parts of water. In addition, the invention also discloses a preparation method of the grinding apparatus. The flexible urea resin grinding apparatus has characteristics of light weight, flexibility, high grinding efficiency and the like; the grinding apparatus is good in self-sharpening property, and the surface of a machined object is unlikely to burn; the grinding apparatus has certain elasticity and is particularly suitable for finely grinding and polishing metals such as magnesium, aluminum, copper and stainless steel.

Description

technical field [0001] The invention belongs to the technical field of abrasive tool preparation, and in particular relates to a flexible urea-formaldehyde resin abrasive tool and a preparation method thereof. Background technique [0002] As an indispensable and alternative processing tool in the fields of machinery manufacturing and material processing, abrasive tools are known as the "teeth" of industry, and are an important foundation for manufacturing, oil exploration, mining exploration, and material industry. Abrasives mainly include ceramic abrasives and organic abrasives. Organic abrasives mainly use resin and rubber as binders. They are a new type of grinding tool. They have the advantages of simple production process, short cycle and low cost. They are widely used in steel, automobile, aviation, machinery, stone, glass, precious jade Grinding and other aspects, especially in fine grinding and polishing, has outstanding advantages, and has become one of the hot sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/28B24D3/34B24D18/00C09J161/24
CPCB24D3/285B24D3/344B24D18/009
Inventor 邓军平王小亮孙扬
Owner XIAN UNIV OF SCI & TECH
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