SU779086A1 - Emulsion lubricant for metal moulds - Google Patents

Description

(54) EMULSION LUBRICATION FOR METAL FORMS

one

This invention relates to lubricants.

for metal forms with

the manufacture of concrete products.

The known emulsion lubricant used in the metal industry 5 consists of high melting wax with a melting point of 82-85 ° C, triethanolamine, butyric acid and water 1.

However, this emulsion contains fast-melting paraffins, which leads to the formation of thick lubricant films on the surface of the molds, which contribute to the build-up of concrete, and the oil-acid 15 emulsion that is partly low-key does not form soap-surfactants with triethanolamine. contributing to the reduction of pores on the surface of molded products. .20

Closest to the offer is an emulsion lubricant for metal molds in the manufacture of concrete and reinforced concrete products, including, wt.%:

Hydrocarbons (ceresin). 5-10 Stearin Technical 1.9-2.1 Trietanalamine09-1.1

Voda87-92 ZO

However, this lubricant forms dense raids on the frontal side, the removal of which requires more labor.

The purpose of the invention is to reduce the adhesion of concrete to metal, shape and improve the quality of molded products.

This goal is achieved by the fact that an emulsion lubricant for metal forms in the manufacture of concrete and reinforced concrete products, including hydrocarbons, technical stearin, triethanolamine and water, contains soft paraffin with a melting point of 36-40 seconds and additionally an emulsion acid acidic synthetic at the following the ratio of components, wt.%:

Soft paraffin 5-10

Stearin Technical 1.9-2.1

Triethanolamine

technical 0.9-1.1

Emulsol ACID

synthetic (ex) 5-10 Water Else Example 1. The composition of the lubricant is as follows, wt%:

36 ° C

ten

Soft paraffin with t

Claims (2)

pl Stearin technical2, 1 cue Three ethanol ciMHH technical-. Ex5 Watergi g. The lubricant is prepared as follows. Water is poured into the paddle stirrer to 50 ° C. The stirrer is turned on, stearin and triethanolamine are added, mixed for 1 min, then EXR is added and the mixture is stirred for 1 min, then soft paraffin is loaded into the stirrer and continued to be stirred for 30 min at SO-SS C. after a specified time, without stopping the mixing, the emulsion is cooled to 15–25 ° C for 10–15 min. The viscosity condition of the VZ-1 lubricant at viscosity temperature at 7.5 ° C is 7.5. The stability of the lubricant is maintained for several weeks. EXAMPLE 2. The lubricant composition is the following wt.%: Paraffin Soft 5 Stearin Technical 1.9 Triethanolamine Technical 0, 9 EX 10 Water 82.2 The preparation of the lubricant is carried out as in Example 1. The conditional viscosity of the lubricant is 10 s. The stability of the lubricant is maintained for several weeks. Tests have shown that the lubricant offered is retained well on the forms, the air pores and spots are completely absent on the products, the surface of the product is smooth and glossy, and there are no contaminants on the forms during their long-term operation. The invention of the emulsion lubricant for metal forms in the manufacture of concrete and iron-concrete products, including hydrocarbons, technical stearin, triethanolamine and water, is characterized in that, in order to reduce the adhesion of concrete to the metal form and improve the quality of molded products, as hydrocarbons, soft paraffin with a melting point of 3640 ° C and additionally an emulsol acidic synthetic with the following ratio of components, wt.%: Soft paraffin 5-10 Stearin technical 1.9-2.1 Triethanolamine 0.9-1.1 Synthetic acidic emulsol 5-10 Water Others Sources of information taken into account during the examination 1. German patent 1 929208, cl. 23 C 1/04, - published 1955. 2. USSR author's certificate number 527291, cl. B 28 B 7/36, 1974.