SU709668A1 - Lubricating cooling liquid for mechanical treatment of metals - Google Patents

Description

The invention relates to cutting fluids (coolant) for metal cutting, in particular, turning, milling and cutting stainless austenitic steels and superalloys based on nickel. It can be used in machine-building plants. Known are water-based coolant lubricants for the mechanical treatment of metals, containing sulphurous mineral oil, oleic acid, kerosene, grieganolamine, borax and water 1; minal maso, oleic acid, triethanolamine, alkali metal salt and water 2. These cutting fluids when cutting difficult-to-cut materials do not provide the required productivity and quality of the machined surfaces, since at elevated cutting speeds their lubricating and cooling properties are impaired, as a result of which the wear of the cutting tool is sharply intensified. Known coolant the following composition,% of%: Supfofresol0,3-O, 4 Kerosene O, 4-O, 7 Oleic acid, 0.3-0.5 Triethanolamine O, 4-O, 6 Triethanolamine perfluoroananthic acid 0.1-0.15 Vodado 100 NW. However, this coolant does not provide the required productivity and durability of the cutting tool when cutting hard-to-cut materials. The aim of the invention is to increase the cutting tool durability by increasing the lubricating and cooling properties of the coolant. To achieve this goal, the coolant containing thief, oleic acid and triethanolamine, additionally contains potassium iodide, polyvinyl alcohol and polydiene drying oil in the following ratio and components, weight.% : Oleic acid 0.4 - 0.8 Triathanopamine 0.3 - 0.5 Potassium iodide - 0.2 Polyvinyl alcohol 0.3 - 0.6 Polydienic drying oil 4.9 7.9 Vodado 100. Polydiea drying oil (TU-4v3- 1-36873) Fedstavl a product made from govdenn 1st y Technical lotneniem vegetable oil by blowing of air, followed by mixing with the polydiene B grade (TU 1265-53) and adding gasoline as solvent. For the preparation of SOF water plant. Potassium iodide thief is injected into a psychodiagnostic drying oil, heated to 4 ° -50 ° C, and thoroughly mixed for 2–25 m. After the mixture has cooled down, triethanolamine and oleic acid are added to it. A semi-plate concentrate is added to water in which the polyvinyl alcohol is dissolved. 7

Table 1 84 The proposed coolant is a milky emulsion that is stable for 6-7 months. When cutting metals in the zone of contact of the cutting tool with the workpiece and chips, under the influence of high temperatures, polydiene linseed oil interacts with potassium iodide. As a result of this interaction, halogen-substituted hydrocarbons are formed with enhanced activity, which intensifies the formation of chemical anti-wear films. The introduction of polyvinyl alcohol into the coolant lubricant leads to an improvement in their cooling and anti-corrosion properties. According to the technology, coolant formulations were prepared, given in Table. one.

stainless steel 12X18H1OT

75 mm diameter carbide cutter T15 Kb. The proposed 45 to 1-3 formulations were tested against the next 4; soshesha, wt.%:

Sulfof DaeolO 4

KeroskO 6

Triethanolamine salt of perfluoroenanthic acid 0.1

Vodado Yuo.

The tests were carried out at a cutting depth of 1.5 mm and feed O, O8 mm / rev.

The results of the tests are presented in table. 2

Claims (3)

Test Coolant Note; VT - R As can be seen, as a result of the application of the proposed coolant, the cutter durability increases by 1.3 - 1.6 times with some improvement in the quality of the treated surface. Thus, the proposed coolant is more effective than liquids of similar purpose. Claims A lubricating fluid for machining metals containing water, oleic acid and triethanolamine, characterized in that, in order to increase the durability of the cutting tool, the liquid is complementary. Table 2 but NO NO NO (straight surface roughness. Cutting speed ; durability of cutting tool; contains potassium iodide, polyvinyl alcohol and polydiene drying oil with a low content of components, wt.%: Oleic acid0.4 - 0.8 Triethanolamine, 3 - O, 5 Potassium iodide 0.1 - 0.2 Polyvinyl alcohol 0,3 - O, 6 Polydienova linseed oil 4,9 - 7,8 WaterUnder 1OO.Sources of information taken into account in the examination 1. Author's certificate of the USSR 195015, class С 10 М 3/04, 1965. 2. Authors certificate of the USSR 407941, cl. From 10 M 3/02, 1973. 3. Author's certificate of the USSR 451737, cl. C 10 M 3/24, 1973)