Method and apparatus for obtaining accurate sample

Details Method and apparatus for obtaining accurate sample Method and apparatus for obtaining accurate sample

1989-05-31

1991-05-14

Noland, Tom

Measuring and testing

Sampler, sample handling, etc.

Capture device

7386311, 7386458, G01N 112

Patent

active

050145614

ABSTRACT:
Method and sampling apparatus for obtaining accurate carbon samples in ultra-low carbon melts includes a capping system for the fill tube which uses Pyrex or low carbon steel caps, preheating or preigniting parts to burn off contaminants and a zircon coating can be employed around the immersion vehicle to prevent carbon contaminants from reaching the sample mold.

REFERENCES:
patent: 2485492 (1949-10-01), Hubbard et al.
patent: 3221559 (1965-12-01), Miller, Jr. et al.
patent: 3534614 (1970-10-01), Croswell
patent: 3565606 (1971-02-01), Carlson et al.
patent: 3748908 (1973-07-01), Falk
patent: 3791219 (1974-02-01), Falk
patent: 3905238 (1975-09-01), Falk
patent: 4069715 (1978-01-01), Falk
patent: 4069717 (1978-01-01), Falk
patent: 4659679 (1987-04-01), Falk
patent: 4815326 (1989-03-01), Falk

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