396
Volume 5, Issue 10: Special Issue
(EJAR)
ISSN: 2181-2020
MPHAPP
THE 6TH INTERNATIONAL SCIENTIFIC AND PRACTICAL
CONFERENCE
“
MODERN PHARMACEUTICS: ACTUAL
PROBLEMS AND PROSPECTS
”
TASHKENT, OCTOBER 17, 2025
in-academy.uz
PRODUCTION OF DRY POWDER COMPOSITES BASED ON SODIUM AND
CALCIUM STEARATE
Ermatov R.K.
PhD student at NamSTU
Namangan State Technical University
ermatovrustamjon0797@gmail.com
Doliyev. G.A
Professor of the Department of Chemistry, NamSU, DSc.
Zaripova. R.Sh
Tashkent Pharmaceutical InstituteTashkent Pharmaceutical Institute
https://doi.org/10.5281/zenodo.17339599
Relevance:
One of the main tasks of the world industry is to provide the construction industry
with new, high-quality products. The processing of metals, which perform an important function in
the construction industry, is of great importance, that is, their production in various sizes. Therefore,
it is necessary to process metals and prepare wires of various sizes from them, to study in more detail
the composition of these wires and various physical and mechanical processes occurring on their
surfaces, to search for opportunities for the widespread use of dry welding components used in the
drawing and processing of metals. Therefore, it is important to develop effective methods for
obtaining dry welding components and welding electrodes used in the drawing of metal wires based
on local raw materials.
Methods and techniques:
A dry plaster composite containing 30% calcium stearate, 43% soap,
4% turpentine, 10% talc, 5% kaolin and 8% iron (III) oxide is obtained:
First, calcium stearate is added to the reactor and gradually heated. In this process, it is
important to ensure that the temperature does not exceed 170°C. When the calcium stearate is
completely dissolved, soap powder is added to it and it is also completely dissolved. Then the
remaining additives are added to the mass little by little, one by one, stirring vigorously. In this case,
the added additional components are completely mixed with the liquid, forming a homogeneous
system for 55-60 minutes. The product is cooled and begins to solidify in the form of a monolith. The
resulting monolithic product is ground in a mortar and brought to a powder state. The most important
indicator of a dry solder composite is its adhesion to the surface of the steel wire from which the
welding electrode is made. To test this, a steel wire for a welding electrode with a cleaned surface is
dipped into the powder product, i.e. the slush composite. It is then observed that the powder product
adheres to the surface of the steel wire for the welding electrode, forming a thin layer.
Results:
The dry slurry composite obtained by the above method does not boil at high
liquefaction temperatures, does not decompose, and does not solidify separately during stretching.
The obtained technical results show that the prepared slurry oil is not hygroscopic and is a neutral
substance, which increases the corrosion resistance of the stretched steel wire and stops the corrosion
process on the surface of the steel wire. If the amount of kaolin added to the dry slurry composite is
less than 4%, its corrosion properties decrease, and if the amount of kaolin is increased by more than
6%, its corrosion properties increase, and therefore this process is not advisable. If 4-6%
talcomagnesite is added to the dry slurry composite, the softening temperature of the dry slurry
composite increases by 10-15°C, and its antifriction properties improve.
Conclusion:
When the amount of talcomagnesite in the dry-cast composite is less than 4%, the
hydrodynamic mode during wire stretching is not ensured, the amount of insoluble components in
397
Volume 5, Issue 10: Special Issue
(EJAR)
ISSN: 2181-2020
MPHAPP
THE 6TH INTERNATIONAL SCIENTIFIC AND PRACTICAL
CONFERENCE
“
MODERN PHARMACEUTICS: ACTUAL
PROBLEMS AND PROSPECTS
”
TASHKENT, OCTOBER 17, 2025
in-academy.uz
the finished dry-cast composite decreases, and it is not advisable to exceed the amount of
talcomagnesite in the dry-cast composite by more than 6%.
