SU1182070A1 - Coolant for machining metals - Google Patents

Abstract

LUBRICATING LIQUID FOR MECHANICAL TREATMENT OF METALS, containing water and sodium nitrite, characterized in that, in order to improve the processing performance and durability of the cutting tool, the liquid additionally contains trisodium phosphate, sodium salt 2,5-dimethylbenzylmer; captoacetic acid and 11, K-di-

Description

The invention relates to coolant lubricants (coolant) for the machining of metals with a diamond abrasive tool.

The aim of the invention is to increase the productivity of the machining process of cutting tool durability. .

For JIPiFQTovol and coolant, sodium nitrite (GOST 4197-66), trisodium phosphate GOST 93337-60), NiN-di- (2-OXYETSH1) -dithiocarbamate of diethylammonium (TURP 198-66) were used.

The coolant is prepared by simply mixing the components at 60-65 ° C. Drunk prepared by the compositions of the coolant, presented in table. 1 (wt.%).

Ll experimental evidence of the performance of the proposed; coolant has been tested on a 4-ball chshm-3,2 friction machine using the standard method GOST 9490-75.

The test results of the prepared samples are given in table. 2

Vypis conducted tests of coolant samples 1-5 in comparison with kerosene (composition 6) and the known coolant-lubricating liquid (composition 7) on a semi-automatic machine, 3021, when processing cast iron. The criteria for evaluating the performance of the coolant are taken by the rezttsa ability of WP diamond bars, wear of Uq bars and surface roughness Ra

The test results are given in table, 3,

As shown by the data in Table 3, when honing iron, the proposed coolant showed results that are superior to known (7) and kerosene (6) in performance by 10-11%. At the same time, the proposed coolant reduces the specific consumption of diamond bars and improves the cleanliness of the treated surface.

Table 1

0.15 0.35 0.15 0.25

2 2.5

0.5 0.1 0.6 0.3 0.1 0.45

3 1.5 4

V.p, g / min

remaining coolant, n. 6.3 1 2 3 6.5 6.4

H 5 6 7 5.8 5.9 5.9 6.1

Table 3

g / min

R, mkm

1.25 0.0042 0.0034

1.2

1.2 0.0038

1.35 0.008

1.3 0.007 0.0105

1.35 0.0072

1.3

Claims (2)

LUBRICANT COOLING LIQUID BONE FOR MECHANICAL PROCESSING OF METALS, containing water and sodium nitrite, characterized in that, in order to increase the productivity of the processing process and the durability of the cutting tool, the liquid additionally contains trisodium phosphate, sodium salt of 2,5-dimethylbenzyl mercaptoacetic acid and H, K-di- (2oxyethyl ) diethylammonium dithiocarbamate in the following ratio of components, wt.%: Sodium nitrite Trisodium phosphate Sodium salt 2,5-dimethylbenzyl mercaptoacetic acid N, N-Di- (2-hydroxyethyl) diethylammonium dithiocarbamate Water 0.15-0.5 0.15-0.3 2-3 0.2-0.5 Else 1 1182070 2