SU367132A1 - METHOD OF OBTAINING LUBRICATING COOLING - Google Patents

Description

one

This invention relates to a process for the preparation of lubricating fluids based on water, split co-anesthetics and triethanolamine.

These fluids are prepared by mixing the components during heating with triethanolamine (TEA) additives.

A GREAT disadvantage of advanced emulsions of advanced, heated soapstocks with TEA is an extremely high degree of awareness in the preparation process and especially in the process of operation using them in the conditions of closed lubricant cooling systems of rolling mills. This is a major obstacle to the use of such emulsions in the hot and cold rolling of metals and alloys. Recommended defoamers, such as polyorganosiloxaic liquids (for example, PMS-200A) and others, are ineffective or ineffective with respect to aqueous emulsions of diluted soap fluids with TEA. Additive PMS-200a, on the contrary, stabilizes it in this emulsion.

The purpose of the invention is to develop a method for the production of coolant based on split solenstock with the addition of triethanolamine, an effective cheap defoaming agent for a cooling fluid for rolling metals and alloys with a weak foaming ability.

For this, it is proposed to add to the sample of the split soap with stirring

glycerin tar, preferably in the amount of 8-12% by weight of soapstock, and then triethanolamine at the rate of 60% neutralization of free stock fatty acids, the acid number of which is determined beforehand. The mixture is periodically stirred for 7-10 minutes, then added to it in small portions with vigorous stirring and water heated to 45-55 ° C.

The ability to foaming of the thus obtained coolant (coolant) is 20–25 times less (calculated on the largest attainable volume of foam) than coolant based on split soap stock and triethanolamine without the addition of glycerol tar.

The introduction of glycerol tar in the emulsion does not reduce its lubricating and cooling properties, contributes to stabilization.

The low foaming capacity of the preformed coolant according to the proposed method allows it to be used in rolling metals and alloys.

Glycerin tar as a pepogasitel is most effective if it is added to soap stock by the proposed method, i.e. before the introduction of triethanolamine. The introduction of glycerol tar into an already prepared aqueous emulsion is less effective.

Glycerol tar is a waste of the glyceric production of the oil and fat industry, discharged into wastewater or on sludge floors.

Splintered soap stock 1 product obtained after treatment with a strong acid residue from refining oils.

The table presents the test results of the proposed method. As can be seen, the injection of glycerol gowd-on from 0.1 to 1% of the res “reduces the multiplicity of the formation of Tshy compared with the risk of PL1C-2 (SA.

Subject invention

Claims (2)

1. A method for producing coolant and coolant for cold and hot metal working based on water, split soap stock and triethanolamine, characterized in that, in order to increase the lubricating properties of the emulsion and to reduce it the ability to foaming, the split soap stock is mixed with glycerin tar, followed by the introduction with vigorous stirring into the mixture of triethanolamine and heated water. 2. The method of claim 1, wherein the glycerin tar is introduced in an amount of 8-12% by weight of the split stock flow.