SU1087550A1 - Lubricant for cold metal forming - Google Patents

Abstract

LUBRICANT FOR THE COLD deformation of metals containing halide aminoparafinov, characterized in that, in order to increase antifriktsionnk and extreme pressure properties of grease additionally contains iodine, the product recovered from each phase dissolved in acetone phosphatide concentrate, vegetable oils, and as a halide aminoparafinov - hydrochloride aminoparaffins in the following ratio of components, wt.%: Aminoparaffins hydrochloride 0.5-1.5 Iodine5.0-13.0 The product is extracted from the liquid phase of phosphatide dissolved in acetone vegetable oil concentrate

Description

The invention relates to the cold working of metals by pressure, in part HocTHjK technological lubricants, and can be used in the drawing of stainless pipes.

Intensification of the process for the production of stainless pipes can be carried out in the direction of the most extensive use of high-speed machining processes (these include drawing) with large values of single reductions.

However, it should be noted that the main condition for increasing the productivity of equipment is the use of technological lubricants, which would reduce the contact friction forces and prevent sticking in the most severe deformation modes.

A known lubricant for cold deformation of metals, consisting of polyethylene glycol or its mixture with polypropylene glycol, talc and an extreme pressure chlorine-containing additive.

However, this lubricant does not always ensure the normal course of the dragging process with increasing speed and one-time reduction. .

Lubricants are known, consisting of an aqueous solution of capes, alkali metal salts, polyphosphoric acids and fatty acids 2, as well as on the basis of mineral oil with sulfated polyethylene and the product of the reaction of distilly glycol with aerosil 3}

These lubricants also do not provide the most stringent deformation modes of stainless steel pipes during drawing.

Closest to the invention is a lubricant for cold deformation of metals, in particular deformation of stainless pipes without prior coating based on glycerin esters of waste production of sebacic acid (OPSA) with the addition of aminoparaffins - fluoride of fluorine paraffin t as a halide. However, the lubricant is known for high-speed drawing of stainless The pipes do not provide a normal process without sticking of metal. This is explained by insufficient data. the process of anti-friction and anti-seize properties of the lubricant;

The aim of the invention is to improve the anti-friction and anti-friction properties of the lubricant.

D.GS of achieving the goal g lubricant for cold deformation of metals f containing aminoparaffin halide, additionally contains iodine and product, - extracted from the liquid phase of vegetable oils phosphatide concentrate dissolved in acetone, (and lubricant as aminoparaffins halide is aminoparaffin hydrochloride followed by the ratio of components, may.%: 5 Hydrochloride

aminoparaffins 0.5-155 Iodine 5, 0-13,0

Product 5 is extracted from the liquid Q phase of plant oil dissolved in acetone phosphatide concentrate. Remaining 5 Hereinafter, the lubricant base is called the aceton-soluble products of phosphatide concentrate.

Phosphatide concentrate consists of about 45% of kefalins, 10% of leucium types and 45% of acetone-soluble products, including about 60-63% of triglycerides and 37-40% of diglyceride phosphorus acids. The formula is diglyceride phosphoric acids where R and R are fatty acid radicals.

Extraction of substances from phosphatides, soluble xi: acetone, proceeds as follows. When the mixer and the screw are turned on, the continuous extractor simultaneously serves to supply phosphatides from the collector with a gear pump and acetone heated to a temperature of (20 + 3) acetone at a speed of (87 + 5) l / h. Control of the flow rate of acetone is carried out through a rotameter on the pipeline.

Both phases in the ratio of 1; 5 are dosed into the upper part of the vertical column of the extractor and move directly along the column 5 where the extraction of substances soluble in acetone takes place. Acetone extract together with defatted phosphatides with the aid of an auger feeds the receiving collection, then the construction phases are fed to the filter centrifuge (filter material is nylon fabric) 5 from where the solid phase — kefLIN and lecithins are fed to the lecithin extraction stage, and the liquid phase — from 12-13% of a mixture of triglycerides and diglyceride of phosphoric acids and acetone, using a pump feeder, is fed to the evaporation of acetone at a rate of 60-80 l / h, the temperature in the evaporator is maintained 75-80 C. The amount of acetone supplied is p guliruets pump and pin roliruets rotameter. Acetone vapors formed in the evaporator are transferred to a heat exchanger where they condense and return to the process. The residue after evaporation of acetone — mixtures of triglycerides and diglyceride-phosphoric acids is collected by gravity into a receiving collection. The resulting acetone-soluble product contains, in wt.%, Vegetable oils 50-60 Phospholipids 35-48 Acetone. 2-5. The "1" in lubrication of iodine and phospholipids contributes to the improvement of anti-friction properties, since esters of phosphoric acid and glycerin are naturally effective, anti-scuff additives. To prevent the corrosive effect of iodine, an anti-corrosion additive is added to the lubricant - aminoparaffin hydrochloride is introduced into the lubricant.

The content of components, wt.%, In

Lubricant components

4 (known) Standard substances are used to prepare the lubricant: crystalline iodine (GOST - 4159-64) and aminoparaffins hydrochloride (TU-6-02-1027-76). The acetone-soluble products of phos5) aide concentrate have the following physicochemical characteristics: the appearance is light brown; viscosity at 20 ° C 70–80 cSt, at 50 ° C 21–25 cSt, at 100 ° C 11–11.8 cSt; acid number 10-12 mg KOH / g; onsenhe number 190, mg KOH / g; iodine number is 114. The proposed lubricant is obtained as follows. In a container with a stirrer and heated pour-acetone-soluble products phosphatide concentrate and with stirring, heated to 120-125 ° C, then in small portions (due to strong foaming) add the calculated amount of iodine-. After all the iodine is added, the mixture is heated to 125-150 s for 3040 minutes, then cooled to 60-80 ° C and aminoparaffin hydrochloride is added. The finished lubricant is poured into the container. Lubrication is applied to the deformable product by dipping, pouring or feeding under pressure in front of the deformation zone. The following lubricant formulations were tested and tested (Table 1). Table 1

Acetone-soluble products of phosphatide concentrate

Aminoparaif hydrochloride

Iodine

Glycerin esters OPS

Aminoparaffins fluoride

85.5

B5 13.0

85

15

O (1) The efficiency of the known and proposed lubricants was compared by the magnitude of the coefficient: friction (antifriction properties) and the presence of metal adhesion (extreme pressure properties), whichComparative tests showed that the proposed compounds 1-3, unlike the known 4, have the best antifriction properties (friction coefficient more than 2.5 times) and the best protivozadkryky№1 properties - no sticking,

We offer lubrication tested in

These were determined on an MT-I friction machine while polishing a stainless steel strip. For each of the options was conducted 6 tests. Table 2 shows the average test data. table 2

production conditions when drawing stainless pipes on a short mandrel. At the same time, pipes were tested in different modes and pressure was measured on the mandrel, on the die, and also the surface roughness after dragging. The data of these tests are given in table. 3

Table 3

Claims (1)

GREASE FOR COLD DEFORMATION OF METALS, containing aminoparaffin halide, characterized in that, in order to increase antifriction and extreme pressure properties, the lubricant additionally contains iodine, a product extracted from each phase of the vegetable oil phosphatide concentrate dissolved in acetone, and aminoparaffin hydrochloride as a halide aminoparaffins in the following research component, wt.%: Aminoparaffin hydrochloride Iodine Product extracted from the liquid phase of a vegetable oil phosphatide concentrate dissolved in acetone 0.5-1.5 5.0-13.0 SS £ R Rest 108755 1 1087550 2