阅读说明：本技术 一种表面镀覆的白刚玉磨料及其制备方法 (Surface-plated white corundum abrasive and preparation method thereof ) 是由 吴建伟 于 2020-07-31 设计创作，主要内容包括：本发明涉及一种表面镀覆的白刚玉磨料及其制备方法,它是由下列重量份数的原料制备而成的：白刚玉50至100份,结合剂2至5份,润滑剂2至5份,氧化剂10至20份克服传统白刚玉使用寿命短的缺陷,并且增加了白刚玉的耐磨性,提供了一种表面镀覆的白刚玉磨料及其制备方法,产品利用白刚玉、滑石粉、锂矿石粉、陶瓷粉、纯水以及氧化锆为原料实现上述产品的原料配比,并通过煅烧和对煅烧温度的控制和保温作用,将上述原料镀覆在白刚玉的表面,所得到的白刚玉的使用寿命得到了很大的提高,比传统的白刚玉磨料使用寿命提高了百分之三十至五十,并且,通过原料的磨料镀覆作用,产品的耐磨性提高了百分之十至三十,具有很好的社会和经济效益。(The invention relates to a white corundum abrasive with plated surface and a preparation method thereof, wherein the white corundum abrasive is prepared from the following raw materials in parts by weight: the white corundum abrasive material comprises, by weight, 50-100 parts of white corundum, 2-5 parts of a binding agent, 2-5 parts of a lubricating agent and 10-20 parts of an oxidizing agent, overcomes the defect that the service life of the traditional white corundum is short, and increases the wear resistance of the white corundum, and the white corundum abrasive material coated on the surface is provided.)

1. The surface-plated white corundum abrasive is characterized by being prepared from the following raw materials in parts by weight: 50-100 parts of white corundum, 2-5 parts of binding agent, 2-5 parts of lubricant and 10-20 parts of oxidant.

2. The surface-coated white corundum abrasive according to claim 1, characterized in that: the binding agent is a mixture of talcum powder, lithium ore powder and ceramic powder, wherein the granularity of the talcum powder is 500 meshes, the granularity of the lithium ore powder is 100 meshes, and the granularity of the ceramic powder is 800 meshes.

3. The surface-coated white corundum abrasive according to claim 1, characterized in that: the granularity of the white corundum is 3-5 mm.

4. The surface-coated white corundum abrasive according to claim 1, characterized in that: the lubricant is pure water.

5. The surface-coated white corundum abrasive according to claim 1, characterized in that: the oxidant is zirconium oxide.

6. The surface-coated white corundum abrasive according to claim 2, characterized in that: the mass ratio of the talcum powder to the lithium ore powder to the ceramic powder is 2:1: 1.

7. A method for preparing the surface-coated white corundum abrasive according to claim 1, 2, 3, 4, 5 or 6, characterized in that the method comprises the following steps:

1) firstly, crushing the white corundum in parts by weight to the granularity of 3-5 mm, then mixing the crushed white corundum with the bonding agent and the oxidant in parts by weight, fully stirring, and adding the lubricant in parts by weight while stirring and mixing to obtain a mixture;

2) and (2) containing the mixture obtained in the step 1), placing the mixture into a calcining furnace for calcining, controlling the calcining temperature to be 2300-2800 ℃, carrying out heat preservation calcining for 2 hours when the temperature reaches 2300 ℃, then heating to 2500 ℃, carrying out heat preservation calcining for 2 hours, finally heating to 2800 ℃, carrying out heat preservation calcining for 1 hour, and finally naturally cooling or screening to obtain a finished product.

Technical Field

The invention relates to the field of abrasives, in particular to a white corundum abrasive with a plated surface and a preparation method thereof.

Background

The white corundum is made up by using industrial alumina powder as raw material, smelting at high temp. of above 2000 deg.C in electric arc, cooling, pulverizing, shaping, magnetic separation to remove iron, screening to obtain several granularities, and its texture is compact and hardness is high, and its granules can be formed into the form of sharp horn, so that it is applicable to the production of ceramic and resin consolidation grinding tool, grinding, polishing, sand-blasting and precision casting, etc..

At present, in the production and processing processes of various corundum, manufacturing enterprises are exploring to carry out plating operation on corundum, namely, substances with more characteristics are attached to the surface of the corundum through technological means such as high-temperature sintering and the like, and the service life and the service performance of a white corundum product are further improved.

Therefore, the production of the white corundum abrasive material with the plated surface, which has the advantages of convenient operation, long service life, high wear-resisting coefficient and simple and easy-to-operate preparation method, and the preparation method thereof has wide market prospect.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the surface-plated white corundum abrasive material which is convenient to operate, long in service life, high in wear-resisting coefficient and simple and easy to operate in a preparation method and the preparation method thereof, and aims to overcome the defects in the prior art.

The technical scheme of the invention is realized as follows: a white corundum abrasive with plated surface is prepared from the following raw materials in parts by weight: 50-100 parts of white corundum, 2-5 parts of binding agent, 2-5 parts of lubricant and 10-20 parts of oxidant.

The binding agent is a mixture of talcum powder, lithium ore powder and ceramic powder, wherein the granularity of the talcum powder is 500 meshes, the granularity of the lithium ore powder is 100 meshes, and the granularity of the ceramic powder is 800 meshes.

The granularity of the white corundum is 3-5 mm.

The lubricant is pure water.

The oxidant is zirconium oxide.

The mass ratio of the talcum powder to the lithium ore powder to the ceramic powder is 2:1: 1.

The preparation method of the white corundum abrasive with the surface plated comprises the following steps:

1) firstly, crushing the white corundum in parts by weight to the granularity of 3-5 mm, then mixing the crushed white corundum with the bonding agent and the oxidant in parts by weight, fully stirring, and adding the lubricant in parts by weight while stirring and mixing to obtain a mixture;

2) and (2) containing the mixture obtained in the step 1), placing the mixture into a calcining furnace for calcining, controlling the calcining temperature to be 2300-2800 ℃, carrying out heat preservation calcining for 2 hours when the temperature reaches 2300 ℃, then heating to 2500 ℃, carrying out heat preservation calcining for 2 hours, finally heating to 2800 ℃, carrying out heat preservation calcining for 1 hour, and finally naturally cooling or screening to obtain a finished product.

The technical scheme of the invention has the following positive effects: the invention overcomes the defect of short service life of the traditional white corundum, increases the wear resistance of the white corundum, and provides a white corundum abrasive coated on the surface and a preparation method thereof.

Detailed Description

A white corundum abrasive with plated surface is prepared from the following raw materials in parts by weight: 50-100 parts of white corundum, 2-5 parts of binding agent, 2-5 parts of lubricant and 10-20 parts of oxidant. The binding agent is a mixture of talcum powder, lithium ore powder and ceramic powder, wherein the granularity of the talcum powder is 500 meshes, the granularity of the lithium ore powder is 100 meshes, and the granularity of the ceramic powder is 800 meshes. The granularity of the white corundum is 3-5 mm. The lubricant is pure water. The oxidant is zirconium oxide. The mass ratio of the talcum powder to the lithium ore powder to the ceramic powder is 2:1: 1.

The preparation method of the white corundum abrasive with the surface plated comprises the following steps:

1) firstly, crushing the white corundum in parts by weight to the granularity of 3-5 mm, then mixing the crushed white corundum with the bonding agent and the oxidant in parts by weight, fully stirring, and adding the lubricant in parts by weight while stirring and mixing to obtain a mixture;

2) and (2) containing the mixture obtained in the step 1), placing the mixture into a calcining furnace for calcining, controlling the calcining temperature to be 2300-2800 ℃, carrying out heat preservation calcining for 2 hours when the temperature reaches 2300 ℃, then heating to 2500 ℃, carrying out heat preservation calcining for 2 hours, finally heating to 2800 ℃, carrying out heat preservation calcining for 1 hour, and finally naturally cooling or screening to obtain a finished product.