SU960232A1 - Cutting fluid for metal machining - Google Patents

Description

This goal is achieved by the fact that a metalworking fluid for machining metals containing water, triethanolamine, sodium nitrite, soda ash, tetrasodium salt N-octadecyl-N-sulfosuccinoyl aspartic acid and the surfactant contain as a foaming agent an anti foaming agent and an anti-foaming agent, as well as a surfactant containing anti-foaming agent and an anti-foaming agent. propylene glycol ethers, polymethylsiloxane, polyethylene glycol ethers, synthetic primary alcohols, fractions of xylitol ester with oleic acid, with the following ratio components in liquids, wt%: Triethanolamine 0.3-0, Sodium nitrite 0.2-0.8 Calcium soda0, 7 Tetrasodium salt N-octadecyl-N-sulfosuccinylspartic acid 0.3-0.7 Antifoam specified composition (BD) 0.05-0.15 WaterOther The introduction of the product BA, which has good stabilizing, lubricating and anti-foam properties, to the coolant recipe, allows to increase; the protective properties of the liquid, to increase its penetrating ability by 30-40% According to avyenkyu with known. The proposed coolant has a surface tension of 5–10% (36–35 mN / m) lower than the known, and has good properties and does not lose these properties when oils from the lubrication system enter into its composition. This coolant does not form salt deposits and it is difficult to remove any films on the working surfaces of the machine and the parts being machined. As part of the coolant used antifoam, which has the pin name Anti-foaming agent BA. This product is sent to the following composition, wt.% Monobutyl ethers propylene glycol (propanol B-400) 79.5 Polymethylsiloxane (liquid 131-85) 15.2 Poly-ethyl glycol ethers of the synthetic, primary fatty alcohols of C-C fraction, (DT-2 synthanol) , 4 Xylitol ester with oleic acid (Xylan-Q) 2.9. The proposed coolant is prepared by mechanically mixing with water components of the coolant in a certain sequence. The finished composition is a clear, light yellow liquid. In tab. Figure 1 shows the compositions of the proposed and known coolant lubricants by the extreme and average values of the components. Table 1

Di "atriev salt and kilpolyoxyethylene glycol oil sulfonic acid ester

BA Anti-Foaming Water

Comparative tests of compositions of 40X with grinding bars on coolant 1-6 are carried out on a superfinishing machine, GOST 2156-75, VP 60 20-40 63СМ14МЗКЛ machine. Rollers are processed in the following mode:

1.00

0.70

0.40

95.75

93.80

97.70

Part rotation speed, m / min

Oscillating speed, m / min

Oscillation amplitude, mm

Claims (3)

1 2 3 4 5 b As can be seen from the table. 2, the proposed composition of the coolant provides 5-10% higher performance and reduces the relative consumption of bars by 5-10 with the same surface roughness. Invention Lubricating fluid for mechanical treatment of metals containing water, triethanalamine, sodium nitrite, x-scintered soda, N-octadecyl-N-cylphosuccinoyl asparaginic acid tetrasodium salt, and t-syela active syrup, sylphosuccinoylparaginic acid that, in order to increase the productivity of the treatment process and to reduce the consumption of the abrasive tool, the liquid contains a defoamer as a surfactant, including propylene glycol monobutyl ethers, polymethylsiloxane, synthetic polyethylene glycol ethers: Bar pressing pressure, kgf / cm 3 Machine time, s 60 The test results are given in table. 2, table 2 11.6 0.120 11.3 0.117 11.0 0.112 12.2 0.123 11.8 0.125 11.0 0.112 common primary fatty alcohols of the C fraction (jC and xylitol ester with oleic acid, in the following ratio of components in a liquid, wt.%: Triethanolamine O, 3-0, 7 Sodium nitrite 0.2-0.8 Soda ash -0.3-0.7 Tetrasodium salt of M - octadecyl-Y-sulfosuccinylsparaginic acid.0.3-0.7 Antifoam of the specified composition 0.05-0 , 15 VodaEstalnoe Sources of information accepted by attention during Examination 1. Kurchik NN and others. Lubricants for metal cutting. M. Chem., 1972, pL31160 .. 2. USSR author's certificate 810781, cl. With 10 M 3/02, 1979. - 3. USSR author's certificate 816149, cl. C 10 M 3/02, 1979 (prototype).