SU834081A1 - Abrasive paste - Google Patents

Description

(54) ABRASIVE PASTE

I

The invention relates to the abrasive industry, namely the production of abrasive tires.

The known abrasive paste is based on synthetic and natural diamonds, electrocorundum, cubic boron nitride in a mixture with binders and surfactants used in the Finishing, lapping and polishing operations ij.

However, the known pastes due to the high cost are used in small volumes, the consumption of the paste increases the cost of the processing of products,

The closest in technical essence and the achieved result to the proposed is Izj paste containing chromium oxide, silica gel, fat, stearin, oleic acid in the following ratio of components, wt.%:

Chromium oxide75-85

Fat 5-10

Stearin5-10

Oleic acid2

Silica gel2

. Kerosene2

Known paste has low efficiency in the processing of parts made of hardened steel, cast iron alloys and non-metallic materials, for example, the surface roughness of hardened steel X05, processed paste with a micropowder grain 40/28 microns Rcj 0.32 microns. In addition, the main component of the paste chromium oxide is poisonous and has a very significant irritant effect on the human body.

The purpose of the invention is to increase the grinding and polishing properties, reduce the cost of production and reduce the toxicity of the paste. . The goal is achieved by the fact that the paste, including abrasive micropowder, stearin, paraffin, kerosene, 3 oleic acid, as an abrasive contains polycrystalline corundum waste mass of synthetic corundum production, which is formed during the formation of embryos of synthetic corundum crystals, K9TorText grinding, and the grinding is made into grinding material, which is formed during the formation of embryos of synthetic corundum crystals, K9TorText is crushed, and the grinding is made into shredded chives. isothermal abrasive grains, in the following ratio of pasta components, wt.%; For iyristaghy corundum waste Paraffin Oleic acid Kerosene 1-2 Stearin Else In table. 1 brought variants of abrasive paste. Example. 14-16 pounds weight of stearin, 8-10 veres and 2-3 wt.% Oleic acid are added to the flask with a stirrer from the whole paste mass, heated to 80-100 seconds and stirred until the mixture is fully diluted. After heating to liquid state, the contents of the flask are filtered through several layers of gauze and poured into a pre-warmed clean flask. Then, 1% by weight of kerosene is added, stirred for 2-3 minutes, and 69-72% by weight of micropowder from waste of synthetic corundum with a grain size of 20/14 µm is added. The mixture is mixed for 20-25 minutes until the lumps of the micropowder are completely disappeared, and then poured into a glass, cooled and after cooling and solidification, the finished solid paste is obtained. In quality

Polycrystalline corundum waste mass

Paraffin

Oleic Acid Kerosene

/

Stearin

71

72

ten

ten

2

2

2

2

15

14 micro-powders use polycrystalline corundum mass, which is a waste product of the production of synthetic corundum, which is crushed and classified by known methods, thus obtaining isombric grains. The finished paste is processed on the surface of the sample of hardened steel and bronze. For comparison, the same sample is processed with a known chrome paste. The treatment with pastes according to composition 1 is carried out on a laboratory machine, a polishing pad with a cotton or felt wheel, at a rotation speed of 2000-2200 rpm, in composition. 2 and 3 on the machine, polishing pad with a felt wheel. In tab. Figure 2 presents the comparative data from the test results of chrome oxide abrasive pastes and synintecal corundum wastes. The paste can be used for finishing and polishing surface treatments of hardened steel, hard and non-ferrous alloys, cast iron, as well as glass, crystal and minerals. The paste eliminates the use of toxic, poisonous chromium oxide, thereby improving working conditions when working with the paste. The paste possesses better grinding properties compared to the well-known cast chrome paste. When polycrystalline corundum mass is used, micropowder with isothermal grains is obtained, thereby improving the quality of the surface to be treated. T a b e c i a 1 20/14

Hardened steel 50-62 X05

40/28

Hardened 55-60 steel 20 XI1M 40/28

BronzaAJ 9-4

t20 / 14

Hardened

steel H05 50-62

40/28

Hardened 1 and 55-60

steel

20HNM

40/28

Bronze

M 9-4. Formula of Invention

Abrasive paste containing abrasive micropowder, stearin, paraffin, oleic acid, kerosene, characterized in that, in order to improve grinding and polishing properties, reduce the cost of production and reduce paste toxicity, as an abrasive micropowder, it contains a polywork texture that has a queried querity matrix and an abstractive micropowder. production of synthetic corundum in the following ratio of components, weight,%

Polycrystalline ska

corundum waste

weight 69-72

Table 2

0.063-0.125

0.16-0.25

0.16-0.25

0.08-0.16

0.32

0.25-0.32

8-10

acid

2-3

1-2

Rest

35 Sources of information

taken into account in the examination

1. Abrasive and diamond processing of materials. Directory. M., Machine Nostroenie, 1977.

2. Basics of design and manufacturing technology of abrasive and diamond tools. M., Mashinost45 45, 1975 (prototype).

Claims (2)

The claims The abrasive paste containing abrasive micropowder, stearin, paraffin, oleic acid, kerosene, characterized in that, in order to increase grinding and polishing properties, reduce the cost of production and reduce the toxicity of the paste, as an abrasive micropowder, it contains polycrystalline corundum waste synthetic corundum in the following ratio of components, weight,%: Polycrystalline corundum waste material 69-72 Paraffin 8-10 Oleic acid 2-3 Kerosene 1-2 Stearin Else 35 Sources of information taken into account in the examination 1. Abrasive and diamond processing of materials. Directory. M., '’Mashi- 40 Building, 1977. 2. Basics of design and manufacturing technology of abrasive and diamond tools. M., ’’ Machinost- 45 swarm ”, 1975 (prototype),