SU392720A1 - Lubricant for polishing and grinding materials - Google Patents

Abstract

LUBRICANTS FOR POLISHING TO POLISHING METALS based on mineral oil and sodium carboxylic acids, are different from the fact that, in order to facilitate the application of lubricant to the grinding tool and improve its emulsifying properties, paraffin is added to the lubricant composition, spermaceti wax, ethylene glycol and non-ionic surfactant in the following ratio of components, wt.%: Sodium kilo of carboxylic acids • 10-25 Paraffin4-10Non-ionogenic surfactant • 0.5-25-25 Mineral oil Up to 100.

Description

The invention relates to the oil refining and petrochemical industries, in particular to greases, and can be applied in machine-building, metal-working and other sectors of the industry, during grinding and polishing, to impart dates of metal of the corresponding type.

To facilitate the processing of children with abrasive materials, they are lubricated, which improves the processing and quality of the metal surface.

These lubricants should have an average melting point of 80-15СГ С, should be well applied to the abrasive tape, should they not corrode when it comes into contact with the part, and be easily removed.

Lubricants for polishing and grinding metals based on mineral oil and sodium soap of carboxylic acids are known, for example, UT universal refractory. However, this lubricant has an insufficiently thick consistency and is therefore unacceptable for a grinding tool, in addition, it is poorly emulsified in water.

The aim of the proposed invention is to create a tableted lubricant conveniently applied to abrasive belts and tools, which improves the processing of parts with abrasives, which can be easily removed and washed from the parts.

To this end, it has been proposed to introduce into the composition of sodium lubricant on petroleum oil ethylene glycol a non-ionic surfactant, a substance, spermaceti wax and paraffin wax. The introduction of these components gives the lubricant a solid, pasty consistency and the ability to emulsify in water.

The composition of the mixture, wt.%: Sodium soap 10-25 Ethylene glycol 10-12 Paraffin4-10

Spermaceti wax 1-9 Non-ionic surfactant 0.5-25 Mineral oil Up to 100 The lubricant manufacturing process is as follows.

The basis of this lubricant is sodium soap, prepared

Formulation of samples of lubricants

in the usual way - saponification of synthetic fatty acids. or natural fatty products with 40-50.% - with a solution of caustic soda at 75-100 ° C.

Mineral oil is added to the end of the saponification process. Then, at a temperature of about 90 ° C, the active component emulsifier (surfactant) is introduced. With continuous stirring at a temperature of 85-95 ° C, add ethylene glycol. The temperature is then raised to and curing agents (spermaceti wax and paraffin wax) are added. After that, the temperature is brought to IGo-c with continuous stirring. At 160-170 ° C, they are stirred for 0.5-2 hours, then cooled and poured into containers.

Dispersion medium is

 any petroleum oil (kinematic

viscosity at 50 ° C is equal to 20-40 eats),

for example, industrial oil IS-20.

As an active emulsifying component, the preparation OS-20 (m.p. 47-49 s, ash content 1.1.5%) was added, resulting in hydroxyethyl. The addition of 1 mole of higher fatty alcohols of sperm fat 20 moles of ethylene oxide. PEG-35, which can be obtained by ethoxylation of ethylene glycol with ethylene oxide and (or) stearox b, can also be added to obtain acidification by ethoxylation of 1 mole of stearic acid and mole of ethylene oxide.

In order to impart a uniformity of lubricant 5 and a certain solid consistency, ethylene glycol (GOST 11033-64), spermaceti wax obtained from hygbalt fat, and paraffin corresponding to GOST 9348-60 are introduced into the composition of the latter.

Production time 0.5 kg of lubricant in laboratory conditions -2-3 hours.

A number of samples with different content of components have been tested.

In order to impart a semi-solid lubricant, it is also possible to add high molecular weight Navy alcohols — waste products from the production of synthetic fatty acids — to reduce the paraffin content, or polyethylene wax.

The formulation of lubricant samples and their physico-chemical parameters are given in table. 1-6.

Table 1

Continued table. one

1.6

NaOH

26

Oil IS-20

 b l and c a 2

physical and chemical characteristics of lubricant samples

Dropping point

122

134

Unstable,

57.5

% 63.8

3.7

Ash,% 2.19

Corrosion test for copper plates

1.6

1.6

21

22

23

116

133

106

50.5

49.6 2.17 2.43

Endures

table 2

Lubrication Formulation

ten

Paraffin

PEG-35 Physical and chemical indicators of lubricants

135

100

55.23

Unwashed,% 59.76

3.6

Ash,% 2.35

Copper Plate Corrosion Test

Continued table. 3

ten

ten

10 10

ten

R

Table 4

113

122

139

44.53

51.18

47.5

2.42

2.38

3.31

Withstanding ae t

Table 5

Lubrication recipe

1.6

26

s

12

1.0

9

ten

Dropping point, ° С90

Unsolicited% 65.65

Ash,% 2.55

Corrosion test for copper plates

Continued table. five

22

21

ten

12

ten

15

ten

ten

Table 6

137

132

133

58,84

58.43

61.49

4.18

3.78

3.41

Endures

Claims (1)

GREASE FOR POLISHING AND GRINDING METALS based on mineral oil and sodium malic carboxylic acids is distinguished by the fact that, in order to facilitate the application of lubricant to the grinding tool and improve its emulsifying properties, paraffin is introduced into the lubricant. spermaceti wax, ethylene glycol and nonionic surfactant in the following ratio of components, wt.%: Sodium low carboxylic acids 10-25 Paraffin 4-10 Spermaceti wax 1-9 Ethylene Glycol 10-12 Nonionic Surfactant 0.5-25 Mineral oil Up to 100.