SU722943A1 - Lubricant for cold pressure processing of metals - Google Patents

Description

one

The invention relates to process lubricants for the treatment of metals and can be used in the processes of hopbda stamping of non-ferrous metals and alloys of sheet and bulk stamping of carbon steels, rolling and drawing of ferrous and non-ferrous metals.

Mineral oils based lubricants with various additives are widely used for cold deformation of metals.

Dnac, such lubricants have low antifriction properties, do not provide high quality surface products, the application is associated with considerable difficulties in removing grease residues from the metal surface after deformation.

Therefore, greases based on vegetable oils, fatty acids and their derivatives 2,

A number of fatty acids based lubricants are known on the process of castor oil pyrolysis (OPS), improved by saponification, thermal compaction

However, saponification and thermal compaction increase lubricant viscosity, which during cold stamping of non-ferrous metal products leads to deterioration of the surface quality of finished products, makes it difficult to apply lubricant to the workpiece, reduces anti-friction properties of lubricant due to deterioration of its penetrating ability.

Closest to the invention to the technical essence and the achieved result is a lubricant for cold metal forming

5 based on the fatty acids of the process of pyrolysis of castor oil (OPSA) with the addition of polyethylene glycol ether naphthenic acids and polyethylene glycol ether frivolous alcohols s.

However, this lubricant does not provide the required surface quality when machining non-ferrous metals. The dilution of the lubricant base is specified

It fuses the shielding properties of the compound with the use of fats due to the content of compounds with active functional groups in the lubricant. At the same time, the viscosity of the lubricant is too high, a significant layer of lubricant remains on the finished products, which reduces the surface quality.

The purpose of the invention is to improve the screening properties of the filter and to improve

surface quality (x: ti of finished products. The goal is achieved by the fact that the fatty acid lubricant of the castor oil pyrolysis process additionally contains cyclohexanol, levulinic acid and / or keto enanthic acid.

The lubricant has the following composition, ve Cyclohexanol O, 5-60

Levulinovp and / or

enanthic acid 0.5-20

The acid of the process of castor oil pyrolysis

Cyclohexanol is readily mixed with nitrile acids (OPS) in any

ratios, which allows, in the widths of the wounds, to regulate the viscosity and irony of each lubricant, the optimal dosage of which ensures the high quality of the surface of the products from. non-ferrous metals.

The addition of levulinate (J-ketovaleric) and -ketoanthanic acids, belonging to a series of nascent keto acids, containing two functional groups, improves the antifriction properties of the compositions at any degree of dilution of the fatty acids (OPSA) with cyclohexanol. At the same time, in the keto acid mixture, the content of keto-enanthic acid is 2-0-5% by weight.

The proposed washout (FFA) is prepared by simply mixing the components. The ratio and concentration of components in the lubricant may vary depending on the conditions of the deformation process and the requirements for the finished product m.

The ratios of the lubricant components in the examples are given in table. one.

Table 1

Ketoenaptic acid 0.5 Fatty acids carried the castor oil spillage 100 To 1OO Up to 100 D about 1OO

Tests of the proposed lubricant (OLC) are carried out by cold stamping of products from copper tape on a 10-ton mohge press. Oils lubricant is tested in comparison with vegetable oil (f 9) used in the workshop with fatty acid OPSA (S) and a mixture of fatty acids (OPSA) with esters (No. 11) |; smear of a known method).

The test results of lubricants are given in Table 5,

0.5 1O 5 2

a b l n c a 2

55 .3 Up to South Ossetia Up to 100 Up to 1o Up to 10th

Continued table. 2

Klk can be seen from the table, the proposed lubricant (OFA) (No. 1-8) improves tool life compared to existing lubricants, provides a higher surface frequency class and can successfully replace expensive and scarce vegetable oil during cold stamping of non-ferrous metals.

Thus, the use of the proposed lubricant (OLC) improves the shielding properties of the lubricant: to improve the surface quality of the finished

products; replace expensive and deodicated vegetable oil.

Formulas

the invention

Lubricant for cold treatment of metals by fatty acid-based pyrolysis of castor oil, characterized in that, in order to improve the shielding properties of the lubricant and improve the surface quality of finished products, the lubricant additionally contains cyclohexanol and levulin and / or keto-enanthic acid at the next component content, weight.%:

Cyclohexanol 0.5-6 O

Levulinova and / or ketoenantoic acid0, 5-2О Fatty acids of the process of castor oil pyrolysis To SO

Information sources,

5 taken into account when excise: pt1 PG

1.Avtorskoe svide golstpo SSSG number 503034, cl. S Yu L 5 / () 2, 1074,

2. USSR author's certificate № 54О9О8, cl. C 10 M 5/02, 1975.

0

3. Author's testimony of the USSR f 279841, cl. C 10 L1 5/14, 1H68.

4. Author's svidotolstguyu SCSL number 366217, cl. C 10 M 3 / O (5, J fKia

5. Authors svidegel. R-tpo CCCF5 № 330184, cl. C 10 M 1/2, li / fi (prototype).

Claims (1)

The claims 5 Grease for cold metal forming based on fatty acids of castor oil pyrolysis process, characterized in that ¹⁰ , in order to improve the shielding properties of the lubricant and improve the surface quality of finished products, the lubricant additionally contains cyclohexanol and levulin and / or keto enanthic acid ¹⁵ lot with the following content components, wt.%: Cyclohexanol 0.5-60 Levulin and / or keto enanthic kitty ²⁰ lots 0.5-20 Fatty acids of castor oil pyrolysis process Up to 100