Bronze sealing rings defects and ways of its elimination

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

17 Цитирования (Scopus)

Аннотация

In the article data about application nanopowder on a structure of coatings of the form are submitted at a casting of lead-tin bronzes. Elimination of gas porosity on a surface bronze cast preparations of high pressure compressors piston rings was the primary goal of such application protectively-dividing coverings. For experimental works mark of multicomponent bronze has been chosen. Its structure includes tin, lead, zinc and nickel. Casting from this bronze received a method of centrifugal molding. Influence of a structure of used protective - separating coating of a foundry core on a surface smoothness was probeed. Was compared action of coatings of a following composition: anti-burning-in coating (a blend of a low dispersible powder of chromium oxide with calcinated vegetable oil); anti-burning-in material ASPF-2/RgU (on the basis a low dispersible powder of graphite and the calcinated vegetable oil); the patent No. 2297300 (blend of a ultradispersible powder of dioxide of zirconium with inpowderrial oil. Molding without use of coverings leads porosity depth to 4-5 mm and to a marriage significant amount (to 50%). Use ASPF-2/RgU completely eliminates welding casting to a casting mold, but porosity on a surface remains. Application of coverings of a casting mold containing in quality of a filler ultradisperse powders oxide metals with low heat conductivity allows in to lower much a roughness and to eliminate gas porosity on a cast surface from lead-tin bronze. A gas time of a surface still remains, but them becomes much less and their form changes. Depth of defects doesn't exceed 1-1,5 mm that doesn't fall outside the limits the admission.

Язык оригиналаАнглийский
Название основной публикацииApplied Mechanics and Materials
Страницы82-86
Число страниц5
Том379
DOI
СостояниеОпубликовано - 2013
Событие4th International Scientific Practical Conference with Elements of School for Junior Scientists ("Innovative Technologies and Economics in Engineering") - Yurga, Российская Федерация
Продолжительность: 23 мая 201325 мая 2013

Серия публикаций

НазваниеApplied Mechanics and Materials
Том379
ISSN (печатное издание)16609336
ISSN (электронное издание)16627482

Конференция

Конференция4th International Scientific Practical Conference with Elements of School for Junior Scientists ("Innovative Technologies and Economics in Engineering")
СтранаРоссийская Федерация
ГородYurga
Период23.5.1325.5.13

ASJC Scopus subject areas

  • Engineering(all)

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  • Цитировать

    Martyushev, N. V., & Pashkov, E. N. (2013). Bronze sealing rings defects and ways of its elimination. В Applied Mechanics and Materials (Том 379, стр. 82-86). (Applied Mechanics and Materials; Том 379). https://doi.org/10.4028/www.scientific.net/AMM.379.82