Heat Treat of 3Z Valve Piston | Zendy

P.J. Hern | Zendy

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Heat Treat of 3Z Valve Piston

Author(s) -

P.J. Hern

Publication year - 1999

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/6020

Subject(s) - piston (optics) , fracture toughness , product (mathematics) , fracture (geology) , composite material , materials science , mechanical engineering , forensic engineering , engineering , mathematics , physics , geometry , optics , wavefront

To improve the processing of 3Z valve pistons in LF7 assemblies, material qualities are being investigated. After a review of the fracture toughness curve, it was noted that a change of a few degrees variation from the 900 F called for by the drawing would affect the fracture toughness of the product. After this observation it was decided to determine how close to the 900 F the parts were heat-treated. The subsequent study indicated that Federal Manufacturing & Technologies (FM&T) equipment held the product at 900 F {+-} 1.8 F

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