SU1456460A2 - Lubricant-coolant for metal-working - Google Patents

Description

one

The invention relates to coolant lubricity (coolant), used for machining metals for cooling the cutting zone, and is an improvement in the image-retina according to the ed. St. No. 1397478.

The purpose of the invention is to increase the durability of the cutting tool.

Coolants are prepared by adding components to water in any order at normal temperature and stirring with a mechanical stirrer until they grind.

For the preparation of coolant using triethanolamine TU 6-09-2443-72, sodium tri-polyphosphate TU 6-08-281-74, potassium hexacyanoferrate K; Fe (CN) GOST 4207-75, borax technical GOST 8429-77 and granular antiglaze (ANS) reagent TU 113-03-28-03-83 based on the complex compound calcium nitrate and urea. The ANS reagent also contains a surfactant of the type OP-7 or OP-10, the ratio of the mass fraction of urea to the mass fraction of calcium nitrate is within 1.42-1.53, the mass fraction of the surfactant (OII-7 or OP- 10) is 2.0-3.5%.

Preparing the coolant compositions presented in table. 1. There is also given the composition of the known coolant.

Testing of coolant of compositions 1-9 is carried out on turning screw-cutting machines 1K62 under the following processing modes: flange from St.Z, cutter T15K6,

Have

feed 0.3 mm / rev, rotation speed 250 min, cutting depth 3 mm; flange of Art. 12X18H10T, BK8 cutter, feed rate 0.3 mm / rev, rotation frequency 200, cutting depth 1.5 mm; flange of Art. 40X, cutter T5K10, feed 0.34 mm / rev, rotational speed 160 minutes, depth of cut 3 mm.

During the tests, the wear of the cutters on the back surface is determined depending on the length of the cutting path.

The test results are shown in Table. 2

14

From table 2 it can be seen that resistance

T15K6 cutters when using the proposed coolant increases by 1.05-1.1 times compared to the known, VK8 cutters - by 1.07 times, T5K10 cutters by 1.2-1.25 times. Adding borax to a coolant that does not contain an anti-icing agent does not affect the increase in tool life. Surface finish quality c. using the proposed and known coolant lubricant is high and amounts to 20 mg.

four

15 nanov, wt.%:

The proposed coolant, as can be seen from the table, is especially effective in the processing of 40X hard steel;

five

Claims (1)

Formula of invention Cooling lubricant for machining of metals for t 10 auth. St. No. 1397478, characterized in that, in order to increase the durability of the cutting tool, the fluid additionally contains borax in the following ratio Triethanolamine Tripolyphosphate - Potassium hexacyanoferrate Anti-icing reagent based on a complex of calcium nitrate and carbamide Borax Water T a b l and c Triethanolamine 0, 3 0.55 0.8 0.3 0.55 0.80.3 0.550.8 Sodium tripolyphosphate 0.5 0.75 1.0 0.5 0.75 1.0 .0.5 0.751.0 Potassium hexacyanoferrate 0.01 0.015 0.02 0.01 0.015 0.020.01 0.0150.02 Reagent ANS0.01 0.015 0.02 0.01 0.015 0.02- -Bur0, 2 0.25 0.3 - - -0.2 -0.250.3  - - - - - - in all compositions water up to 100 wt.%. 2890.025 0, -020.02 5960,100,100,10 8940,150,100,10 11920, 100.10 18600,150,100,10  t a b l «t a 2 0.0250.045.0.0300.030 0,100,1300,1250,120 0,150,160 0,1500,150 0.15, 1706.1600; iS5 0.160.1800.170O, 1b5 PA SC Cr.lUtSBtOt 252В0,160,150,150,170,160,60,185 0.175 0.175 31960,170,16О, "60,180,180,180,200 0,185 0,180 155.80,040,0350,0350,050,050,050,060 0.060 311,60,0750,070,070,080,0750,0750 085 0, "11,00,1100,100,090,1250,100,100,125. 0.120 O.llJ .566.80, U50,1400, UO0.1550,150,150,160 6j60 0.160  Ct.40X70,50,0450,040,040,050,050,050,065 0,065 0.060 1410,070,070,0650,080,0750,070,090. 0.085 0.085 211,50,100,08OfOS0,120,100,100,130, 0,120 Continuation of table 2