METHOD OF EXPLOSION PRESSING OF ANNULAR ANTIFRICTION SEALINGS

FIELD: explosion pressing method and equipment. SUBSTANCE: method comprises steps of adding to initial mixture of powders of nickel-placed graphite and aluminium-containing bronze 20-25 % of powder of nickel-placed boron nitride having flake particles whose size is equal to size of particles of nick...

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Bibliographische Detailangaben
Hauptverfasser:	Trudov A.F, Tkachev R.K, Arisova V.N, Oreshin N.V
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CASTING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	FIELD: explosion pressing method and equipment. SUBSTANCE: method comprises steps of adding to initial mixture of powders of nickel-placed graphite and aluminium-containing bronze 20-25 % of powder of nickel-placed boron nitride having flake particles whose size is equal to size of particles of nickel-plated graphite, placing mixture had been prepared in ampoule and performing pressing of blank by sliding impact waves with subsequent annealing. EFFECT: enhanced antifriction properties of sealing at high temperature. 1 cl Сущность: в исходную смесь порошков никелированного графита и алюминиевой бронзы дополнительно вводят 20 - 25 мас.% порошка никелированнного нитрида бора с частицами чешуйчатой формы и размерами, равными размерам частиц порошка никелированного графита, получают смесь, размещают ее в ампуле и осуществляют прессование заготовки скользящими ударными волнами с последующим отжигом.