SU863624A1 - Cutting fluid for mechanical working of metals - Google Patents

Description

(54) LUBE-COOLING LIQUID

FOR MECHANICAL TREATMENT OF METALS

one

The invention relates to formulations. coolant for machining of metals.

Cooling fluids for grinding metals based on water, sodium nitrite, triethanolamine, are known. trisodium phosphate, nonionic wetting agent, sodium salts of sulfonated petroleum oils and chlorinated paraffin JQ Rowan water-based sodium salts of sulfonated petroleum oils, chlorinated paraffin, trisodium phosphate, triethanolamine, nonionic wetting agent with the addition of ct-oksitrihloretildinonilfosfinata 0.05-0.15 weight .% to increase the lubricating properties of the fluid 2.

However, the use of these lubricating coolant fluids in the grinding operation of the balls did not give positive results due to low productivity. Grinding conditions bearing; rings (increased feeds and high speeds) are very different from the grinding conditions of the balls, when a batch of balls of 300 kg is simultaneously processed. The grinding speed in this case cannot be high (no more than 7 m / s), the pressure of the pressure disc has a value of 30

There are still a number of other indicators characterizing the process of grinding balls.

Also known is a coolant for machining metals on the basis of water with the addition of mineral oil, anti-wear additive and oleic acid 3.

However, when using this coolant, considerable processing time is required, and the quality of the surface to be processed does not satisfy the requirements.

The purpose of the invention is to create a coolant / fluid that improves the quality of the surface to be processed and reduces the processing time of a batch of balls.

To achieve this goal, a cutting fluid for machining of metals based on water additionally: contains monocarboxylic fatty acids of the microbial fat fraction and polyoxyethylene alkylphenol with the following content of components, wt.%:

Monocarbon

fatty acid

25-35

fractions% Polyoxyethylated alkylphenol0-, WaterOc Below are the physicochemical indicators of monocarboxylic fat; g of the product The content of mineratoral acids The temperature of the water,: laziness, ° C 35-40 Mono-carboxylic fatty acids fractions C, C- / derived from microbial fat vary as a replacement for fatty acids derived from vegetable oils. Prepared following sos (Table 1). Table Content, weight. Formulations Components Polyoxyethylated Alkylphenol

Coolant compositions

Indicators

1.80

1, -80

3900

3900

0.40

0.62

8a 8a

eleven

1.80

1.80

. 3900

3900

0.80

Claims (3)

0.63 7 For the Continuation of the table. 1 new fatty acids of the C fraction of microbial fat 25 Doda to 100 The test of compositions 1-3 is carried out .. in comparison with the known composition 4 on a roller grinding machine mod.MSh-ZZM with automatic feed having a vertical axis of rotation. The weight of the processed batch of balls is 300 kg. Balls with a diameter of 3/4 (19,04 mm) from steel ШХ15, HR.C 62-66. Duration of grinding of one batch is 7 hours. 12 batches of balls are grinded. Grinding modes: the number of revolutions per minute of the grinding wheel is 98, the operating pressure of the pressure iron disk, kg / cm is 12.0. In tests, the crushing profiles of the PP profile SOOxlOOx x290, ECh 5K, and the bulk density of 2.75 g / cm are used. The removed allowance for grinding of 220 microns. Balls are monitored for corrosion. Control tests for corrosion are carried out using thermo-hydrostroma at 1820 ° C and 95% humidity every 24 hours. Corrosion traces are found within the time allowed for parts of ShPh15 steel dip pipes. The results of the coolant test are presented in Table. 2.. .. Table 2 As can be seen, the application of the proposed coolant formulation allows to reduce the roughness of the treated surface, increase the processing purity class and shorten the processing time. Thus oJipa oM, the proposed coolant can be used for machining of balls. Claims Cooling lubricant for machining of metals based on water, characterized in that, in order to improve the quality of the surface to be treated and shorten the processing time of metals, the liquid additionally contains monocarboxylic fatty acids of fraction C, C „14 lee min. No. (of tallow fat and polyoxyethylated alkylphenol with the following content of components, wt.%; Monocarboxylic fatty acids of the microbial fat fraction 25-35 Polyoxyethylated alkylphenol 0.2-0.6 Water Others Sources mation, which are taken into account in the examination of the USSR certificate 1. Avtorskoe 481635, class C 10 M 1/06, 1976. 2. USSR author's certificate 600168, cl. C 10 M 3/02, 1978. 3. Authors certificate of the USSR 536218, k l, s 10 M 1/06, 1977 (prototype).