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QUASI-WELD-FREE AND NANOCRYSTALLINE APPROACHES TO LONG-LIFE BELLOWS SEALS IN…

Award Information

Agency:
Department of Defense
Branch:
Missile Defense Agency
Award ID:
25618
Program Year/Program:
1994 / SBIR
Agency Tracking Number:
25618
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
ANCO ENGINEERS, INC.
1965 A 33rd Street Boulder, CO 80301
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Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1994
Title: QUASI-WELD-FREE AND NANOCRYSTALLINE APPROACHES TO LONG-LIFE BELLOWS SEALS IN CRYOCOOLERS & OTHER RECIPROCATING MACHINES
Agency / Branch: DOD / MDA
Contract: N/A
Award Amount: $55,849.00
 

Abstract:

Two very different approaches to the sealing reliability probelm of reciprocating machines are to be investigated and compared. In one approach, bellows design improvements are the result of combining the excellent dead volume avoidance characteristics of welded bellows with the structural characteristics of formed bellows. Formed bellows avoid both the high strees concentration values and the large amount of uncertainty regarding these values by eliminating the need for circumferential welds. In the proposed design, circumferential welds are not used avoiding or minimizing fatigue problems which have caused failures whenever bellows-driven crycoolers have been tried. This combination of design improvements provides a Quasi-Weld-Free Bellows. The other approach being evaluated involves a material that shows promise of demonstrating greater resistance to the formation of fatigue cracks. This material is called nanocrystalline nickel or nickel alloy. A bellows can be made of this material by electro-forming processes.

Principal Investigator:

Paul Ibanez
3102045050

Business Contact:

Small Business Information at Submission:

Anco Engineers, Inc.
9937 Jefferson Blvd., #200 Culver City, CA 00000

EIN/Tax ID: 952701810
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No