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Materials

Antifriction Material Bronze-Pb25

The material is applied for manufacturing pump bushings
Its physical and mechanical properties are:

- Ultimate strength o - 8 kgf/mm2
- Elongation on Failure ? -4%
- Density not less than 8.3 g/cm3
- Hardness - 25 Н V


Heat-resistant Powder Material of Fe-Ni System

Developed by us powder alloy is referred to maraging steel.
Hardness of the material is 250-300 Н V.
The material is applied to manufacture conveyor belts of through furnaces. It works in the conditions of cyclical thermo-mechanical stress.
Maximum operating temperature in endothermic gas atmosphere is 1050° С .
The material capable of enhancing its mechanical properties while being used reaching the characteristics of massive materials.


Wear-resistant Self-hardening Material of Fe-Cu-Mo-C System

This powder alloy has a martensite structure with strengthening phase dispersion inclusions, of hardness 750-1300 HV, which secures high wear resistance under the integral hardness of 30-45 HRC.
Tensile strength is 480 МPa .
High hardness of the material is attained immediately after sintering without any heat treatment (sinter-hardening) which makes the manufacturing process cost-effective.

The material is used for manufacturing synchronizer parts, components of the fuel-supply system, tooth gears and other wear parts.

Copper-based Alloyed with Microadditives Powder Electrotechnical Materials with Enhanced Electrical Conductivity

This material is applied for switching devices and sliding contacts of sensors and electrical machines made of powder copper alloyed with microadditives. The latter allowed us to enhance electrical conductivity of the material from M-1 copper up to 98% and reduce energy content of manufacturing by decreasing sintering temperature.

The material is used for producing electrical switches, circuit breakers as detachable contact joints of power mains of welding machines, collector-brush couples for electrical motors of household devices such as vacuum cleaners, washing machines, food processors, electric saws, electric instruments, mixers, windscreen wiper drives, etc.


Sintering Activators for Iron-based Powder Materials

The activator is used to produce parts from the materials of Fe-Cu, Fe-C, Fe-Cu-C, Fe-Cu-Mo-C, Fe-Cu-Ni-Mo, etc. systems. Due to the activator, sintering temperature can be reduced by 50-100° С , the properties being kept. The activator improves the dissolution of alloying elements, enhances flowability and machinability of the materials without strength affecting.

Technological properties of the activator are as follows:

- it is easily injected into the blend when mixing;
- it is removed while sintering without forming any structural components;
- it is environmentally friendly.

By varying the amount of the injected activator within 0.2-0.8 wt.%, strength-ductility relation can be effectively controlled.


Manufacturing intricate shaped parts by the method of infiltration – brazing of component elements

The technology is applicable for producing large-scale intricate-shaped parts of over 1 kg . with density equal to that of compact steel. The parts are manufactured by compression moulding of the component elements followed by sintering of the joint combined with infiltration-brazing process.

The technology improves the quality of parts and makes the process cost effective since:

1. By adding various amount of the alloying elements, the clearance between the component elements of the blank are eliminated due to the size difference.

2. Scrap copper alloys can be used as an infiltrated component element.


Stainless Soft Magnetic Powder Material with Higher Electrical Resistance

The material has electromagnetic and mechanical properties inherent in soft magnetic materials and corrosion resistance without any protective coating, low eddy current receptivity, enhanced shock absorption. With this PM technology, parts of intricate shape are produced, no further machining required.
After special heat treatment, the material has the following physical and mechanical properties:

Ultimate tensile strength not less than 300 MPa
Elongation 15 %
Saturation induction 1.2 Т when Р = 2500 А /m,
Residual induction 0.25 T
Coercive force 60 А/ m
Electrical resistivity 0.8-1.1 kO.m

The alloy is used for producing screens, stators, rotors, magnetic conductor and other components of magnetic circuits of electrical machines, units and devices, mainly high-precision ones.

 

 
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