SU910714A1 - Polishing suspension - Google Patents

Description

one

The invention relates to technological polishing abrasive materials that can be used in precision engineering and borostroenii in the final processing of metal mirror surfaces with high reflectivity.

A known polishing compound containing amine compounds (ethylene, diamine), aerosil, water and catechol (P

The presence of ethylene diamine in a polishing compound creates toxicity and it is not possible to use it under normal polishing conditions on standard equipment.

Closest to the invention is a polishing slurry containing abrasive micropowder (diamond), aerosil, and water 12.

However, this suspension does not provide a high reflectivity of copper surfaces and sufficient productivity.

The aim of the invention is to provide a high reflectivity of copper surfaces and a higher productivity of the polishing process.

The goal is achieved by the fact that the suspension contains abrasive micropowder, aerosil and water, as an abrasive micropowder contains an ovalized diamond micropowder and additionally contains polyvinyl alcohol (PVA) in the following ratio, components, weight. %: Calibrated diamond micropowder1.0-1.3

Aerosil 3.0, 0

Polyvinyl alcohol 1.0-2.0 Water Else

The content of the component and the properties of the known and proposed suspensions are given in the table.

Famous tl composition 1

ACM / 3/2 1.5

ten

Aerosil

Isoam1 lazatat 0,5 OP-7 Else

0.06375

98.2

0.080

Composition 2 (modified composition 1 according to the content of AFM 3/2)

ACM 3/2

Aerosil 10 Isoamylacetate 0.5 OP-7 Else

Rest

Water

0.085

98, i.

Claims (2)

0, 791 Suspension with polyvinyl alcohol has a preservative effect on the treated surface, which is not oxidized for a long time under conditions of atmospheric air. The suspension is conveniently served by the jet 8 treatment zone. Its constituents are non-toxic and non-flammable. The presence of an ovale-rich diamond powder makes it possible to obtain high-smooth surfaces with a larger fraction at an increased productivity of the polishing process and to reduce the finishing polishing operations of smaller diamond grains. The smoothing effect that surrounds the diamond-polymer polymer suspension with aerosil and polyvinyl alcohol, due to the chemical effect on the surface and the workout with a highly viscous liquid with suspended diamond micropowder, during fine polishing, we obtained a surface with oxygen-free copper with light-reflecting ability 99.3%. The introduction of aerosil and polyvinyl alcohol in excess of the optimum content results in an increase in the viscosity of the suspension and a decrease in the productivity of the process. The polishing slurry containing abrasive micropowder, aerosil and water, is characterized in that, in order to ensure high reflectivity of copper surfaces and increase the productivity of the polishing process, it contains an ovalized diamond micropowder as an abrasive micropowder and additionally contains polyvinyl alcohol in the following ratio components weight. %: Ovalized diamond micropowder11 5 Polyvinyl alcohol 1-2 AerosilZ VodaEsalnoe Sources of information taken into account during the examination 1. USSR author's certificate No. 57712, cl. C 09 G 1/02, 1975. 2. USSR author's certificate number 3363 0, cl. C 09 G 1/02, 1972 (prototype).