The Institute of Metal Technology offers consumers billets from antifriction silumin with high mechanical and antifriction properties to replace bronzes, brass, babbits in friction units of various machines and mechanisms under a manufacturing agreement and is looking for partners to conclude a distribution services agreement.

Anti-friction silumin (AS) is an innovative development of the Institute, today it is the most promising substitute for bronze. This is a new, relatively light and wear-resistant aluminum-based alloy with high mechanical and anti-friction properties, which is used to replace bronzes, brass, babbits in friction units of various machines and mechanisms.
ITM NAS of Belarus is the developer and the only manufacturer of billets from this material.

Properties	Antifriction silumin
Tensile strength σv, MPa	300-450
Yield strength σt, MPa	250-300
Relative elongation, %	1-5
Hardness, HB	110-150
Density, g/cm3	2.8
Coefficient of linear expansion, α∙106, °С	28-30
Wear resistance	0.5∙10-8 - 1∙10-7 – intensity of linear wear with lubrication, 6.5∙10-11 - 6.5∙10-10 – intensity of mass wear with lubrication, 5.5∙-10-3 - 10-9 – intensity of mass wear without lubrication, 0.001-0.05 cm/h - mass wear rate with lubrication, 0.005-0.9 cm/h - mass wear rate without lubrication.
Friction coefficient	0.01-0.06 - with lubrication, 0.3-0.8 - without lubrication.
Max. operating temperature, °C	up to 120
Shaft hardness, HRC	not less than 20
Permissible load (MPa) - speed (m / s)	up to 100 MPa - 0.5 m / s, up to 50 MPa - 1 m / s, up to 10 MPa - 5 m / s.
Corrosion resistance	Corrosion resistant or insensitive to oil, gas condensate, gasoline, kerosene, water and atmospheric pollution. Corrosion is caused by hydrochloric acid, sulfuric acid, alkali.
Machinability	Billets made of antifriction silumin are processed on lathes, milling, gear-cutting, planing and other metal-cutting machines with using coolant.
Lubrication	It is recommended to use in a lubricating medium (IA20, IA40, Litol, etc.).

 More.

A high degree of structural inversion and a highly dispersed microstructure provide silumins with globular silicon with unique anti-friction properties.

In terms of mechanical properties, billets made of AS are not inferior to similar ones made of bronze, and in terms of antifriction properties, they surpass them by 4..6 times. Billets from AS are cheaper than similar bronzes from Al-Fe and Pb-Zn-Sn by 2..2.5 times, and their weight is 2.5..3 times lower.

At present, billets from AS are produced and supplied by the institute to enterprises of the Republic of Belarus: JSC "Plant" Optic "" (Lida), JSC "Belshina" (Bobruisk), RUPP "Machine-tool plant" Krasny Borets "" (B. Orsha), OAO Bobruiskselmash (Bobruisk), Production Association Gomselmash (Gomel), VS-Tekhnika (Polotsk), Transmaster (Mogilev) and Novaeks Plus (Mogilev), etc.

Patent BY 17697, patent RU 2504595

Activities:
- Development of theoretical foundations for controlling the processes of formation of the structure and properties of metals and alloys during their crystallization and solidification;
- Thermal physics and hydrodynamics of special types of casting;
- Creation of new materials and resource-saving technological processes for their production, processing and hardening.

The results of fundamental research of the institute are presented in scientific publications and are used by:
- when creating environmentally friendly resource-saving technologies for continuous casting of ingots from ferrous and non-ferrous alloys;
- development of new cast, including bimetallic, materials with high consumer properties (strength, ductility, density);
- development of wear-resistant composites based on carbon, including those with a gradient of physical and mechanical properties.

The Institute develops, manufactures, supplies, assembles and maintains equipment for:
- continuous casting of ferrous and non-ferrous metals;
- electroslag casting of blanks,
- including bimetallic ones;
- centrifugal casting of bimetals.

The Institute has developed and introduced high-performance, resource-saving, environmentally friendly technologies:
- continuous horizontal casting from cast iron and alloys based on copper and aluminum;
- continuous-cyclic freezing casting of cast-iron blanks of cylinder liners for engines and pneumatic compressors, piston and sealing rings for various purposes;
- continuous casting of reinforced copper chloride tape for water-activated power sources into a roller mold;
- manufacturing by centrifugal and electroslag casting methods of bimetallic castings with an extended service life;
- casting of high-quality blanks of zinc anodes for electroplating production from their waste;
- obtaining blanks of aluminum-silicon alloys with nanostructured silicon by casting by hardening;
- production of lead tape by the combined method of casting and rolling in a roll mould;
- production of cast parts from wear-resistant cast irons.

Consumers interested in purchasing billets from anti-friction silumin, with high mechanical and anti-friction properties, to replace bronzes, brass, babbits in friction units of various machines and mechanisms under a manufacturing agreement.

Partners interested in purchasing billets from anti-friction silumin with high mechanical and anti-friction properties to replace bronzes, brass, babbits in friction units of various machines and mechanisms under a distribution services agreement.