Adaptor of hydraulic press ТРА500/3HP with
production tools for warm pressing of synchronizing rings
Warm pressing of metallic powders of low-alloy steels is made on a
hydraulic press of the «Dorst» company (Germany):
- ● Temperature of warm pressing – 120…150 °С;
- ● Density of green pressings – 7,2…7,4 g/cm3
- ● Strength of green pressings – 22…27 MPa;
- ● Density rise as compared with an ordinary
pressing – 0,15…0,3 g/cm3;
- ● Pressing force, max. – 5000 кН;
- ● Productivity – 6…10 strokes per
minute;
- ● Number of controlled motions for mold filling,
powder transfer and its transportation and compaction – 12;
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● Electronic programming of warm pressing control for
complex parts.
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Synchronizing rings of
transmission of the tractor “Belarus”, made by warm pressing of alloyed steel Synchronizing rings of transmission of the tractor “Belarus”:
- ● Powder material – Distaloy AE + 0,6%C of the
company Hoganas (Sweden);
- ● Production tools for pressing and calibration of
the company Alvier (Switzerland);
- ● Production technology: warm pressing – sintering
– calibration – deposition of molybdenum coating;
- ● Density after warm pressing – 7,2 g/cm3;
- ● Hardness after sintering –
20…25 HRC;
- ● Constant of friction of the pair “molybdenum
coating-steel” - 0,09...0,1.
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An output mastery of developed products: A pilot batch of synchronizing rings was produced and tested. An output of this kind of production can be mastered at the pilot plant of Powder Metallurgy Institute. Scientific and technical level, novelty: The level of the best domestic and foreign analogues. The patent is in force in CIS countries.
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