SU810769A1 - Cutting fluid for cold pressure working of metals - Google Patents

Description

triethanolamine acid the next time the components are added, weight. %:

Polyethylene glycol ester of stearic acid with 6 mol of ethylene oxide 4-10

The product of hydroxyethyl 1 octadecyl alcohol with 20 mol oKiiCH of ethylene 0.2-0.5

Triethanolamine soap synthetic fatty acids fraction Su-C207-15

The product of heat treatment of vat residue synthetic

d coolant, weight%

The product of hydroxyethiol oxycate of ethylene

(prototype)

The proposed coolant is obtained by introducing the remaining components in the melted state into the mineral oil heated to 70-80 ° C. The product of heat treatment of the cubic residue of synthetic fatty acids with triethanolamine is obtained. by mixing the components in the ratio of 9: 1 and subsequent aging at 160-170 ° C to obtain an acid value of not more than 10 mg KOH / g.

Below is the physico-chemical characteristics of the proposed emulsol:

Melting point, ° C 15-27

Kinematic viscosity 50 ° C, cSt40-90

Acid number, mg KOH / g8

Saponification number, mg KOH / g 30-60

Stability of a 5% emulsion CR 50 ° C, h, without stratification 3

triethanolamine fatty acid mineral oil

5 Physical and chemical characteristics of the product of heat treatment of bottoms of synthetic fatty acids with triethyolamine are given below.

Deposition temperature, ° С37 Acid number, mg KOH / g8 Viscosity at a temperature of 100 ° С, cSt320 Saponification number, mg KOH / g138

In tab. 1 shows the formulations of the proposed CO / K and the known composition.

T a b l II c a I

The product of heat treatment of cubic acid alcohol residue SFA with 20 mol approx ;; triethanolasper

12

(Fat and natural or synthetic)

Tests were carried out on the indicated coolant. The test results I rstavleny in table. 2

As can be seen from the data table. 2, the limits of the concentration of polyethylene glycol ether gololol of ethylene oxide 4-10 weight. % obug. use that with less content. of this component, emulsi decomposes with release of oil, and with a larger e, an improvement in properties is observed.

The content of ethoxylated octadsinol with 20 mol of ethylene oxide j; gp; s; elah 0.2-0.5% ensures the purity of the metal surface (4, 5 are shaped). With a decrease in the content of the product, the number of isio products is sharply increased, and the increase in the amount of product from the product is not observed.

The amount of triethanolamine soap synthetic fatty acids fraction Su-C20 in the range of 7-15% (samples 5, 1)

Provides necessary emulsion stability and corrosion protection. Increasing the product does not lead to

table 2

improve the properties of the emulsion, and reducing it leads to corrosion. The content of the product of heat treatment of the cubic residue of synthetic fatty acids with triethanolamine is determined in the range of 5-15% (samples 5, 4). With a lower content of the product, the lubricating ability of the emulsion is below the level of the prototype (sample 10), and with a higher content, the emulsion is unstable. Separation of cream from the emulsion in an amount of not more than 1.5% during the 3-hour settling does not prevent its use in circulation equipment systems. Based on the data given in Table. 2, the optimal composition should be considered sample 3. The proposed coolant p-revoshod IZ | Vestnye on lubricating properties, durability and corrosion-protective properties, the purity of the treated surface. The rolling pressure when using the proposed emulsol is 7–18% lighter than with emulsion T and l 5–8% lower than with emulsion OE-1. The energy consumption during the rolling of 1 ton of tape is 35–50 keth (depending on the assortment) on the proposed coolant, and 40–55 kett h — that is, 10–12% more on the coolant used (emulsol T). . Emulsol OE-1 gives electricity consumption by 2-3 keth per 1 ton of product more than the proposed one. The emulsion of the proposed emulsol is operated continuously without replacement for 4 weeks, while its contamination with wear products reaches about 0.15%. The emulsol T emulsion used can be operated for 5 days, after which it must be replaced, since its contamination with wear products is 0.2-0.35%. OE-1 emulsion under the same conditions can be used for 2-3 weeks. When storing a metal coated with a thin layer of the proposed coolant (after drying water), during six months under production conditions (temperature 18-25 ° C, humidity 65-75%), no corrosion was observed. Emz asi OE-1 causes corrosion already a day after the metal is rolled. While using known coolant, as a rule, it is necessary to preserve the metal with a bulk of special compounds (PG-204, K-17), which are removed with the use of solvents, the proposed coolant can be used to protect against corrosion, and its removal is clean. water The proposed coolant in the form of a 5% aqueous emulsin in the rolling process under production conditions showed contamination of the metal surface with wear products in the range of 200-300 mg1 m, while emulsol emulsion OE-1 gives 350-400 kg / .i . The proposed composition can be used in the form of water emlsii, as well as in pure form, for example, prn oiling to protect against corrosion of the metal before rolling. In the latter case, an emulsion is formed when water is washed off with an emulsol deposited on a metal. Forms of the formulas and on the n and L Cooling fluid for cold metal forming, containing mineral oil, polyethylenglycol ester of stearic acid

with 6 moles of ethylene oxide and the product of oxyethylation of octadecyl alcohol with 20 moles of ethylene oxide, characterized in that, the purpose of improving the lubricating and protective properties, as well as increasing the service life of the liquid, it additionally contains triethanolamine soap of synthetic fatty acids of the Xu-Szo fraction and the product of thermal treatment of the cubic residue of synthetic acids of triet, nols: iniri, the following content of components, weight. %:

Polyethylene glycol ester of stearic acid with 6 mol of ethylene oxide4-10

Octadecyl alcohol oxyethylation product with 20 mol of ethylene oxide 0.2-0.5

eight

Triethanolamine soap synthetic fatty acids fraction Su-S2o7-15

Thermal product

vat processing

synthetic residue

fatty acids

triethanolamine 5-45

Mineral oil Else.

Sources of information taken into account in the examination:

1. ТУ-6-14-254-68.

;

2. Belosevich V. K., et al. Emulsions and lubricants during cold rolling. M., “Metallurgists, 1976, p. 192 (prototype).

Claims (1)

Claim Cutting fluid for cold metal forming, containing mineral oil, stearic acid polyethylene glycol ether with 6 mol of ethylene oxide and the product of octadecyl alcohol hydroxyethylation with 20 mol of ethylene oxide, characterized in that, in order to increase lubricating and protective properties, as well as increase lifetime fluid further comprises triethanolamine soap of synthetic fatty acids of fraction C _Hsiu-2 and heat treatment of the bottoms product of synthetic fatty acids r ietanolamin the following component weight. %: Synthetic fatty acid triethanolamine soap fraction Xiu - 'Sgo The product of heat treatment of the bottom residue of synthetic fatty acids with triethanolamine Mineral oil 7-15 5-45 Rest. Stearic acid polyethylene glycol ester with <6 mol ethylene oxide The product of the hydroxyethylation of octadecyl alcohol with 20 mol of ethylene oxide 4-10 0.2-0.5