RU2741905C1 - Coolant lubricant concentrate - Google Patents

Abstract

FIELD: lubricating and cooling agents.SUBSTANCE: coolant concentrate containing copper oleate, antioxidant, dispersant, refined base oil, emulsifier, binder, and water. At the same time, it contains diphenylamine as antioxidant additive, succinimide additive C5AB as dispersant additive, non-ionic emulsifier, and diethylene glycol as binding agent.EFFECT: increase in productivity of longitudinal turning of corrosion-resistant steel when using cutting inserts from a hard alloy with protective coating and reducing the value of cutting force components.1 cl, 1 dwg, 1 tbl, 3 ex

Description

SUBSTANCE: invention relates to compositions of lubricating-cooling technological means (SOTS), in particular to concentrates of lubricating-cooling liquids (JCL), which can be used in the form of aqueous solutions in mechanical engineering at operations of blade and abrasive processing of ferrous metals and steels

From the "Level of Technology" known concentrate of cutting fluid for mechanical processing of metals, including the product of interaction of oleic and boric acid with alkanolamine in a mineral oil medium, polyoxyethylated alcohol, glycol, butyl alcohol, sodium nitrite, castor oil and water (RF patent No. 2236439 , class MPK S10M 173/00, publ. 20.09.2004).

In addition, from the "prior art" known a concentrate of cutting fluid for mechanical processing of metals, including mineral oil, monoethanolamine, boric acid, fatty acid, the product of the interaction of fatty acid or vegetable oil with alkanolamine, a mixture based on dioxane alcohols and water, in as a product of the interaction of a fatty acid or vegetable oil with an alkanolamine, it contains the product of the interaction of a fatty acid or vegetable oil with monoethanolamine and / or a product of the interaction of a fatty acid or vegetable oil with diethanolamine and additionally contains a bactericidal additive, chloroparaffin and isopropyl alcohol (RF patent No. 2372383, IPC S10M 173/00, publ. 10.11.2009).

The technical problem is that the existing concentrates of cutting fluids do not allow for high productivity of longitudinal turning of corrosion-resistant steel when using cutting inserts made of hard alloy with a protective coating and at the same time reducing the values of the components of the cutting forces.

The object of the present invention is to eliminate the above disadvantages.

The technical result consists in increasing the productivity of longitudinal turning of corrosion-resistant steel when using cutting inserts from a hard alloy with a protective coating and reducing the value of the components of the cutting forces.

The technical result is provided by the fact that the concentrate of the cutting fluid includes copper oleate, an antioxidant additive, a dispersant additive, a purified base oil, an emulsifier, a binder, and water. At the same time, it contains diphenylamine as an antioxidant additive, a succinimide additive C5AB as a dispersant additive, a non-ionic emulsifier as an emulsifier, and diethylene glycol as a binder substance, with the following ratio of components, wt. %:

copper oleate 0.3 - 1.8 diphenylamine 0.1 - 0.3 succinimide additive С5АБ 1.5-3.5 refined base oil 9.5-12 nonionic emulsifier
diethylene glycol 20 - 30
2 - 7 water rest

The essence of the present invention is illustrated by a diagram that shows the components of the cutting forces when turning corrosion-resistant steel grade 12X18H10T using coolant according to RF patent No. 2236439 and the present invention and cutting inserts made of hard alloy with a protective coating.

Studies have shown that a semi-synthetic cutting fluid modified with a metal-cladding additive allows an increase in the productivity of longitudinal turning of corrosion-resistant steel when using cutting inserts made of a hard alloy with a protective coating (an increase in cutting speed by 27% compared to the cutting speed recommended by the manufacturer of cutting inserts) and the values of the components of the cutting forces P _x by 41%; P _y by 24%; P _z by 27%.

The following components are used in the manufacture of the inventive coolant concentrate.

Base oil is to be understood as a base oil made of synthetic, mineral or natural oil, alone or in combination with an equal content of components. In this case, the base oil based on synthetic oil is selected from an ester of an aliphatic or aromatic di-, tri- or tetracarboxylic acid with one or in a mixture from C ₇ to C ₂₂ alcohols, from a simple polyphenyl ether or an alkylated simple di- or triphenyl ester, from the ester of trimethylolpropane, from pentaerythritol or dipentaerythritol with aliphatic C ₇ to C ₂₂ carboxylic acids, from C ₁₈ dimeric acid esters with C ₇ to C ₂₂ alcohols, from complex esters as separate components or in any mixture, or selected from poly-α-olefins, alkylated naphthalenes, alkylated benzenes, polyglycols, silicone oils, perfluoropolyethers. Base oil based on mineral oil is industrial grade I-12A or I-20A oil in accordance with GOST 20799-88 or other mineral oil with a viscosity of not more than 40 mm ² / s at 40 ° C. Natural oil base oil selected from genetically modified triglyceride oil with a high proportion of oleic acid, genetically modified vegetable oil with a high oleic acid content, including safflower oil, corn oil, rapeseed oil, sunflower oil, soybean oil, linseed oil, peanut oil

To obtain copper oleate, technical oleic acid is used according to GOST 7580-91, or TU 10-04-02-82-91, or TU 9145-172-4731297-94.

Nonionic emulsifier OP-7 according to GOST 8433-81 is used as an emulsifier.

Diethylene glycol is used as a binding agent according to GOST 10136-77.

Diphenylamine is used as an antioxidant additive in accordance with GOST 194-80.

Succinimide additive S5AB is used as a dispersant additive in accordance with TU 38.401-58-130-95.

The coolant composition is obtained by mixing the components in apparatus with mechanical stirring and steam heating at a temperature of 85-95 ° C and for 2.5-3 hours. Initially, raw materials are stored in metal tanks. For dosing liquid components, volumetric dosing devices in the form of measuring vessels and counters are used. Coolant is prepared by mixing the components in mixing reactors equipped with mechanical stirrers and a heating and cooling system. The pumping of oil and other liquid raw components, the circulation of the components for the purpose of mixing them, the pumping out of coolant in the container of the finished product is carried out by centrifugal pumps.

Example 1

The coolant composition is made in accordance with the above method. This gives a composition of the following qualitative and quantitative composition, wt. %:

Copper Oleic Acid Salt (Copper Oleate) 0.6 Diphenylamine (antioxidant additive) 0.2 Succinimide additive С5AB (dispersant additive) 3.2 Refined base oil 12 Nonionic emulsifier OP-7
diethylene glycol 22
7 Water rest

Example 2

The coolant composition is made in accordance with the above method. This gives a composition of the following qualitative and quantitative composition, wt. %:

Copper Oleic Acid Salt (Copper Oleate) 0.9 Diphenylamine (antioxidant additive) 0.2 Succinimide additive С5АБ 2.5 Refined base oil ten Nonionic emulsifier OP-7
diethylene glycol 26
five Water rest

Example 3

The coolant composition is made in accordance with the above method. This gives a composition of the following qualitative and quantitative composition, wt. %:

Copper oleic acid salt (copper oleate). % 1.5 Diphenylamine (antioxidant additive) 0.3 Succinimide additive С5AB (dispersant additive) 1.5 Refined base oil 9.7 Nonionic emulsifier OP-7
diethylene glycol thirty
3 Water rest

The table shows the quality indicators of the obtained composition of the coolant concentrate and a 3% aqueous solution of this coolant concentrate.

Table

Quality indicators of the prepared samples of the coolant concentrate and 3% aqueous solution of the coolant

Indicator name Norm Actual value Test method Concentrate 1. Appearance Homogeneous oily liquid of dark green color corresponds GOST 6243, section 1 2. Density at 20 ° С, cells / m ³ 900-1150 1009 GOST 3900 3. Kinematic viscosity, mm ² / s, at no more than 50 ° С 30-55 46.15 GOST 33 4. Storage stability withstands withstands GOST 6243, clause 6a Solution 3% 5. Stability of the emulsion after 24 hours of exposure:
- on distilled water;
- on water with a total hardness of 4.6 mg-eq / l;
- on water with a total hardness of 7.0 mg-eq / l;
- on tap water Withstands
Withstands
Withstands
Withstands Withstands
Withstands
Withstands
Withstands GOST 6243, section 3.1

From the data presented in the table, it follows that the developed composition of the claimed concentrate of water-miscible coolant meets all the requirements for coolant concentrates in appearance, density, kinematic viscosity, water content, and storage stability.

The test of a 3% aqueous solution of this concentrate also showed compliance with all standards: stability of the emulsion after 24 hours of exposure, emulsifiability in industrial water, tendency to foaming, corrosivity, corrosiveness and other indicators.

The balanced combination of components ensures high product performance and long service life. This provides the following benefits:

• the composition is stable and no precipitate is formed during storage;

• the "cutting" action of the coolant is enhanced (the cutting process is facilitated);

• good anti-wear properties are achieved at intensive cutting conditions, the formation of metal protective films on the cutting surface of the tool made of hard alloy and protective coatings also occurs.

Claims (2)

A coolant concentrate containing copper oleate, an antioxidant additive, a dispersant additive, a refined base oil, an emulsifier, a binder and water, while it contains diphenylamine as an antioxidant additive, a succinimide additive C5AB as a dispersant additive, an emulsifier as a succinimide additive - a non-ionic emulsifier, and diethylene glycol as a binder substance, with the following ratio of components, wt. %: copper oleate 0.3-1.8 diphenylamine 0.1-0.3 succinimide additive С5АБ 1.5-3.5 refined base oil 9.5-12 nonionic emulsifier 20-30 diethylene glycol 2-7 water rest

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