SU1622380A2 - Antifriction lubricant for abrasion working of metals - Google Patents

Abstract

The invention relates to lubricants, in particular antifriction lubricant for the abrasive treatment of metals applied to the working surface of abrasive wheels. The goal is to increase the durability of the latter and the performance of the process. For this, the lubricant contains, in wt%: hera 10–15, dislebid mchlibden 10–20, indenkumaron resin 5–7, C 1 -C 1-alkyl-polyoxyethylene) phosphate 0.3–0.5, mono-ethanol amine salt synthetic C 7- (-fraction -, 4-0,8 fatty acids, stearic acid - up to 100. This lubricant, having a uniform structure, provides the best durability of the circles. Thus, the amount of flowrate before the appearance of burns on the surface of the samples in 1.07-1.15 times higher, and transverse feed 1.15-1.3 times higher than with a known lubricant.

Description

The invention relates to a process for the abrasive treatment of metals, namely to antifriction lubricants applied to the working surface of abrasive wheels, and is an improvement in the lubricant according to the author. St. In 1384605.

The purpose of the invention is to increase the resistance of abrasive wheels and process performance.

For the preparation of antifriction lubricant, technical sulfur, stearic acid, bis ((0-alkyl-polyoxyethylene) phosphate, indene marmarone resin, and synthetic fatty acid monochloroamine salt (FFA) fraction, sold under the name Drying Agent-1, are used.

The introduction of a drying agent-1 in the lubricant increases the uniformity of the distribution of molybdenum diselenide, increases the burn-resistance of the tool. To increase the homogeneity of the distribution of sulfur particles, they use bis (Cd-C 0 -alkyl polyoxy ethylene) phosphate. However, highly dispersed molybdenum disiend has a specific surface that is ten times greater than the specific surface of sulfur, and the effect of using bis (Cg – C alkyl polyoxyethylene) phosphate is insufficient.

The higher wettability of the ocv agent i in relation to i irt- molybdenum lend allows, with the help of this component (whether playing a role of a pergator), to prevent uneven

WITH

I t

with

/

L

J

five

h

distribution of diselenide in the melt.

The technology for making solid lubricant briquettes is as follows. Powder of molybdenum diselenide is introduced into the solution of the precipitating agent-1 with vigorous stirring for 8-10 minutes. The resulting suspension is cooled, dried at 80 ° C, frayed on a sieve to a powder. In this way, molybdenum diselenide powder is obtained, the grains of which are clad with a film of drying agent-1.

The plated molybdenum diselenide powder is introduced into stearic acid heated to 60-70 ° C and the remaining components are successively introduced at 80 ° C with intensive stirring. Clad molybdenum diselenide grains are evenly distributed in a liquid organic base, preventing aggregation, thereby achieving the same concentration of molybdenum dislenide throughout the volume. The resulting melt is poured into cylindrical molds, where this mixture freezes.

The compositions of antifriction lubricants are presented in table 1.

Listed in table 1 compounds 1-5 are tested in comparison with the known (composition 6), wt.%:

Sulfur12,5

Molybdenum diselenide 15.0

Indenkumaronova

resin6.0

bis (Cd-C10-alkylpolyoxyethylene) phosphate 0.4

Stearic acid 66,1

The durability of 24A25PSM16K6 circles is estimated by the number of table strokes during mortise grinding with a cross feed for each double stroke when processing X12M steel specimens from the start of work to blunting (occurrences of burns on the surface of the samples).

Q

five

0

Q 5

.

35

40

The productivity of the process is expressed by the value of the limiting transverse feed rate until the appearance of burns in 20 double turns.

The test results are presented in table 2.

As follows from Table 2, the stability of the circles treated with the proposed composition, expressed by the number of double strokes before the appearance of burns on the surface of the samples, is 1.07-1.15 times higher, and transverse feed is 1.15-1.3 times higher , compared to applying a known lubricant composition.

Thus, the proposed anti-friction lubricant, having a uniform structure, contributes to improving the durability of abrasive wheels and the performance of the grinding process.

Claims (1)

Invention Formula Antifriction lubricant for abrasive machining of metals by author. No. 1384605, characterized in that, in order to increase the stability of the abrasive wheels and the performance of the process, the lubricant additionally contains the monoethanolamine salt of synthetic fatty acids of the fraction .j in the following ratio of components, wt.%: Sulfur10-15 Disiteiid molybdenum 10-20 Indenkumaronova resin5-7 bis (Cd-C, 0-Alkylpo-lioxyethylene) phosphate, 3-0.5 Monoethanolamine salt of synthetic fatty acids fraction 0.4-0.8 Rest Table 1 Table 2