SU810762A1 - "ktiol-76" engineering grease for pressure working of metals - Google Patents

Description

one

The invention relates to the metallurgical industry, in particular to lubricants for the processes of rolling metals and alloys. Lubrication can be used in other processes of plastic deformation (metal processing): training, drawing, calibration, stamping, grinding, etc.

Technological lubricants used in rolling metals and alloys are known, which are aqueous solutions of salts, bases, oxides 1, emulsions of fats, oils, and mineral oils 2.

However, due to the need to intensify the rolling process and increase the requirements for the quality of the rolling metal surface, the known lubricants do not provide a set of necessary lubricating and technological properties: reducing the power parameters of rolling, increasing reductions and reduction of scale, using non-deficient raw materials, reducing the cost of lubricants, etc. .

Known lubricant for metal forming, containing (g / l) soap and fat emulsion 1-100, an aqueous solution of sodium chloride to 70, an aqueous solution of borax 3-100 and an aqueous solution of ammonium chloride 15-35 3.

However, the known lubricant does not provide the required quality of the treated surface.

The closest in composition to the present invention is a lubricant for the treatment of metals based on water and the product of the interaction of fat-containing compounds, their waste with alkanolamine with the addition of non-ionic surface-active substances.

However, this lubricant does not sufficiently reduce the plastic deformation resistance of the metal (an increase in the stretch ratio, a decrease in the pressure of the metal on the rolls), a reduction in the band surface contamination, has insufficient adhesion to the metal, i.e., does not provide the necessary (required) lubricating and technological properties.

The aim of the invention is to create a lubricant with improved lubricating and technological properties, providing it with an increase in labor productivity, an increase in the quality of the surface being treated.

To achieve this goal, a lubricant for metal forming based on water and the product of the interaction of fat-containing waste with alkanolamine.

additionally contains saponified fat-containing waste and podmylny liquor.

The composition of the lubricant, May. %:

The product of the interaction of fat-containing waste with alkanolamineOD-10

Saponified fat-containing waste 0.5-50

Underground lye1- 60

Vodo-100

To ensure the rolling process of steels and alloys of various grades, fatty tars obtained from the distillation of fatty acids are used as fat containing waste: A-technical fats, B - salomas, C - dark cotton soapstock, G - yeast fats (biogas). The main physico-chemical properties of samples of tars are given in table. one.

Table I

Table 4

Note.

Component 1 was obtained by the interaction (saponification) of fat-containing waste with caustic potash and / or sodium with stirring at a temperature of 100-110 ° C; component 2 - in the interaction of fat-containing waste with alkanolamine (mono-, di-, and / or triethanolamine) with stirring and a temperature of 100-140 ° C.

The ratio of ingredients (raw materials) upon receipt of components 1 and 2 and the main characteristics of the components obtained are given in table. 5 and 6.

Table 5

Component 1

ten

Table 6

Component 2 1) E-emulsion; ITU-metastable emulsion; 2) Corrosion on cast iron and steel 08KP after 24 h when testing samples of lubricant is absent; 3) The consistency of lubricant samples at 20 ° С is ointment-like.

Tests of technological lubrication samples were carried out on mills at cold,

Note. Rolling conditions: mill 180/370/400; diameter of work rolls, mm: upper 176, lower 183; samples of steel 08KP 0.5x100X300 mm; setting the rolls is constant, rolling three passes.

Heat rolling

Note. Conditions for rolling: mill 180 /. / 370/400; diameter of work rolls mm: upper 178, lower 172; sample temperature 200-220 ° C; setting of the rolls is constant, rolling speed is 0.35 m / s; clean surface rolls-8.

warm and hot rolling steels. The test results are shown in Table. 7-9.

Table 7

Table 8

Gore cha steel rolling machine

810762

10 Table 9

Claims (1)

Claim Technological lubricant for metal forming based on water and the product of the interaction of fat-containing wastes with alkanolamine, characterized in that, in order to improve the lubricating properties of the lubricant and the quality of the treated surface, the lubricant additionally contains saponified fat-containing waste and soap base liquor at the next component content, May. %: The product of the interaction of fat-containing waste with alkanolamine Saponified fat-containing waste Soap lye Water