Title:
POWDER METAL SCROLLS AND SINTER-BRAZING METHODS FOR MAKING THE SAME
Document Type and Number:
WIPO Patent Application WO/2010/105007
Kind Code:
A3
Abstract:
Methods of forming scroll compressor components are provided. The methods include forming at least one component of a scroll member from a powder metallurgy technique and joining the component with another distinct component via a sinter-brazing process. For example, a baseplate having a spiral scroll involute is joined to a hub via a joint interface having brazing material to form a braze joint with superior quality. At least one component is formed from a powder metal material including carbon and at least one species that reacts with or binds carbon to prevent migration during brazing of the sinter-brazing heat process. Optionally, during the powder metallurgy process, an alloy with a lower concentration of carbon is selected, which may be incorporated into a crystal structure with the species that prevents carbon migration.
Inventors:
SCANCARELLO MARC J (US)
RUXANDA ROXANA E L (US)
RUXANDA ROXANA E L (US)
Application Number:
PCT/US2010/026902
Publication Date:
January 13, 2011
Filing Date:
March 11, 2010
Export Citation:
Assignee:
EMERSON CLIMATE TECHNOLOGIES (US)
SCANCARELLO MARC J (US)
RUXANDA ROXANA E L (US)
SCANCARELLO MARC J (US)
RUXANDA ROXANA E L (US)
International Classes:
F04C18/02; B22F3/00; C22C33/02; F04C29/00
Foreign References:
| US20030138339A1 | 2003-07-24 | |||
| US3889349A | 1975-06-17 | |||
| US20080181801A1 | 2008-07-31 |
Attorney, Agent or Firm:
WOODSIDE-WOJTALA, Jennifer M. et al. (Dickey & Pierce P. L. C.,P.O. Box 82, Bloomfield Hills Michigan, US)
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