Method and apparatus for spraying molten materials
Abstract
A metal spray apparatus is provided with a supersonic nozzle. Molten metal is injected into a gas stream flowing through the nozzle under pressure. By varying the pressure of the injected metal, the droplet can be made in various selected sizes with each selected size having a high degree of size uniformity. A unique one piece graphite heater provides easily controlled uniformity of temperature in the nozzle and an attached tundish which holds the pressurized molten metal. A unique U-shaped gas heater provides extremely hot inlet gas temperatures to the nozzle. A particularly useful application of the spray apparatus is coating of threads of a fastener with a shape memory alloy. This permits a fastener to be easily inserted and removed but provides for a secure locking of the fastener in high temperature environments. 12 figs.
- Inventors:
- Issue Date:
- Research Org.:
- MSE Inc
- OSTI Identifier:
- 251108
- Patent Number(s):
- 5529809
- Application Number:
- PAN: 8-192,691
- Assignee:
- MSE, Inc., Butte, MT (United States)
- DOE Contract Number:
- AC22-88ID12735
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 25 Jun 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; ALLOYS; SPRAY COATING; FASTENERS; SPRAYED COATINGS; EQUIPMENT; DESIGN; LIQUID METALS
Citation Formats
Glovan, R J, Tierney, J C, McLean, L L, Johnson, L L, Nelson, G L, and Lee, Y M. Method and apparatus for spraying molten materials. United States: N. p., 1996.
Web.
Glovan, R J, Tierney, J C, McLean, L L, Johnson, L L, Nelson, G L, & Lee, Y M. Method and apparatus for spraying molten materials. United States.
Glovan, R J, Tierney, J C, McLean, L L, Johnson, L L, Nelson, G L, and Lee, Y M. Tue .
"Method and apparatus for spraying molten materials". United States.
@article{osti_251108,
title = {Method and apparatus for spraying molten materials},
author = {Glovan, R J and Tierney, J C and McLean, L L and Johnson, L L and Nelson, G L and Lee, Y M},
abstractNote = {A metal spray apparatus is provided with a supersonic nozzle. Molten metal is injected into a gas stream flowing through the nozzle under pressure. By varying the pressure of the injected metal, the droplet can be made in various selected sizes with each selected size having a high degree of size uniformity. A unique one piece graphite heater provides easily controlled uniformity of temperature in the nozzle and an attached tundish which holds the pressurized molten metal. A unique U-shaped gas heater provides extremely hot inlet gas temperatures to the nozzle. A particularly useful application of the spray apparatus is coating of threads of a fastener with a shape memory alloy. This permits a fastener to be easily inserted and removed but provides for a secure locking of the fastener in high temperature environments. 12 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {6}
}