Nozzle assembly design for a continuous alloy production process

Details Nozzle assembly design for a continuous alloy production process Nozzle assembly design for a continuous alloy production process

1991-02-01

1992-11-17

Kastler, Scott

Dispensing

Processes of dispensing

Molten metal

222592, 266236, H05B 720

Patent

active

051640970

ABSTRACT:
A nozzle assembly design and a method for making the nozzle assembly, as well as a method for controlling a continuous skull nozzle process employing the nozzle assembly are provided wherein the cooling heat transfer coefficient at the nozzle is increased to maintain a steady-state solidified layer of a noncontaminating liner material, the cooling heat transfer coefficient being increased by reducing the contact resistance between a nozzle outer wall member and an inner liner made of the noncontaminating material, the reduction in contact resistance being achieved by shrink-fitting the nozzle outer wall member around the inner liner to increase the contact pressure between those members.

REFERENCES:
patent: 3435992 (1969-04-01), Tisdale et al.
patent: 4345467 (1982-08-01), Carlson
patent: 4583717 (1986-04-01), Hasegawa et al.
patent: 4654858 (1987-03-01), Rowe
patent: 4951929 (1990-08-01), Schwarz et al.
patent: 5060914 (1991-10-01), Wang et al.
H. P. Wang et al., "Criteria for Achieving a Stable Solidified Layer Inside a Nozzle Using Integral Solutions", General Electric Corporate Research and Development Report No. 88, CRD 288, Oct. 1988.
H. P. Wang et al., "Formation and Growth of the Solidified Layer During Filling in the Investment Casting Process with an Application for Titanium Casting", General Electric Corporate Research and Development Report No. 88, CRD 023, Jun. 1988.

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