Static molds – Uniting preform with molding material – Split mold clamps and supports preform
Patent
1983-02-24
1984-08-07
Lowe, James B.
Static molds
Uniting preform with molding material
Split mold clamps and supports preform
33169B, 51216P, 51217P, 51221R, 51277, 249 62, 249105, 269 7, B24B 4106, B22D 1904, B25B 1100
Patent
active
044639279
ABSTRACT:
Apparatus for use during polishing and sectioning operations of a ribbon sample is described. The sample holder includes a cylinder having an axially extending sample cavity terminated in a first funnel-shaped opening and a second slot-like opening. A spring-loaded pressure plunger is located adjacent the second opening of the sample cavity for frictional engagement of the sample prior to introduction of a molding medium in the sample cavity. A heat softenable molding medium is inserted in the funnel-shaped opening, to surround the sample. After polishing, the heater is energized to allow draining of the molding medium from the sample cavity. During manual polishing, the second end of the sample holder is inserted in a support ring which provides mechanical support as well as alignment of the sample holder during polishing. A gauge block for measuring the protrusion of a sample beyond the second wall of the holder is also disclosed.
REFERENCES:
patent: 1368797 (1921-02-01), Heck
patent: 1389912 (1921-09-01), Stead
patent: 2942568 (1960-06-01), Hamilton et al.
patent: 3723006 (1973-03-01), Thomas, Jr.
patent: 3888053 (1975-06-01), White et al.
patent: 3916511 (1975-11-01), Brehe
patent: 4316757 (1982-02-01), Walsh
"Damage-Free Polishing of Polycrystalline Silicon", Sopori et al., J. Electrochemical Society, vol. 128, No. 1, Jan. 81, pp. 215-218.
Sopori Bhushan L.
Wolf Abraham
Esposito Michael F.
Gottlieb Paul A.
Lowe James B.
Mansfield Bruce R.
The United States of America as represented by the United States
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