SU973600A1 - Process fluid for machining glass - Google Patents

Description

(54) LUBRICANT-COOLING LIQUID FOR GLASS PROCESSING

The invention relates to cutting fluids (coolant) for glass processing and can be used, in particular, when grinding glass with a diamond tool.

The main purpose of the coolant is to ensure the stable operation of the tool.

Cooling fluids are known (coolant used in the optomechanical industry. For example, emulsion emulsol, which contains glycerin, kerosene, soda ash and trisodium phosphate neutralized oil sulphate acid fi

However, the known coolant does not provide a small roughness of the processed glass surface.

Closest to the one proposed is a coolant for glass processing based on water of the following cocTaVa, weight. %:

20-30

Glycerin Rest Water

However, this coolant does not provide a roughness of the processed glass surface below 0.08 µm.

The purpose of the invention is to reduce the roughness of the treated glass surface.

The goal is achieved by the fact that the coolant containing water and glycerin, additionally contains bone glue and

10 5-nitrofurfural semicarbazone with the following content of components, wt. %:

0,

Glycerin 0.05-1 Bone Glue

15 5-Nitrofurfural seven, 00001-0,0001 carbazone Else Water

20

Glycerin (GOST 6854-76) and bone glue (GOST 2067-71) are used to prepare the liquid.

The properties of the proposed coolant are provided by a combination of components with corresponding functional properties.

Due to its high viscosity and considerable surface tension, glycerin increases jet cohesion, reduces friction and reduces tool wear on contact with the glass surface.

Bone glue, which is a surfactant, a nocturnally active substance and a dispersant, provides a high degree of roughness of the surface. batting surface.

5-Nitrofurfural semicarbazone furatsilin is an antiseptic and prevents the biological decomposition of the coolant, increases its stability during storage.

The prepared coolant compositions will be tested under production conditions with fine diamond grinding of the surfaces of cinema-photographic equipment parts on ShPS-350M machines using tools on a metal and organic bond.

In tab. 2 shows the results of tests of the compositions of COG 1-B.

1058

. 598

1104,828,966,874

 An example. A portion of dry bone glue (500 g is heated in 2 liters of water and maintained at 70–80 ° C until optimal concentrations of the components of coolant are obtained. Before using, the required amounts of bone glue, glycerin and furacilin solution are diluted with water and mixed.

in tab. 1 shows the composition of the coolant. .Tabloid 1

Glass Surface Treatment

parts of a cutting fluid with a greater or lesser ratio of components than in the proposed coolant, under all other equal conditions, leads to an increase in the roughness of the surface to be machined or to a tool loss of cutting properties.

table 2

0.42

0758

0.38

0.5

0.41

0.63

From tab. 2 it follows that when using the proposed coolant composition, the roughness of the processed surface of optical components is 1.25–4.3 times lower than when using the coolant of the prototype widely used at plants of the optical-mechanical industry.

Claims (2)

1. USSR author's certificate 253284, cl. C 10 M 3/04, 1970. . 2. Altshuller V.M. et al. The influence of some factors on the process of microcutting of optical glass. 5 Superhard materials, No. 3, 1980 / p. 47-52 (prototype).