skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Metal spray apparatus with a U-shaped electric inlet gas heater and a one-piece electric heater surrounding a nozzle

Abstract

An electrically heated 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.

Inventors:
 [1];  [1];  [1];  [1];  [1]
  1. Butte, MT
Issue Date:
Research Org.:
MSE INC
OSTI Identifier:
870124
Patent Number(s):
5459811
Assignee:
MSE, Inc. (Butte, MT)
DOE Contract Number:  
AC22-88ID12735
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
metal; spray; apparatus; u-shaped; electric; inlet; gas; heater; one-piece; surrounding; nozzle; electrically; heated; provided; supersonic; molten; injected; stream; flowing; pressure; varying; droplet; various; selected; sizes; size; degree; uniformity; unique; piece; graphite; provides; easily; controlled; temperature; attached; tundish; holds; pressurized; extremely; hot; temperatures; particularly; useful; application; coating; threads; fastener; shape; memory; alloy; permits; inserted; removed; secure; locking; environments; spray apparatus; gas temperature; memory alloy; molten metal; gas stream; particularly useful; shape memory; temperature environments; selected size; inlet gas; useful application; metal spray; stream flowing; size uniformity; easily controlled; temperature environment; supersonic nozzle; electric heater; electric heat; shaped gas; stream flow; gas heater; gas temperatures; easily inserted; injected metal; shaped electric; ray apparatus; size uniform; electrically heated; /392/118/219/239/266/338/427/

Citation Formats

Glovan, Ronald J, Tierney, John C, McLean, Leroy L, Johnson, Lawrence L, and Verbael, David J. Metal spray apparatus with a U-shaped electric inlet gas heater and a one-piece electric heater surrounding a nozzle. United States: N. p., 1995. Web.
Glovan, Ronald J, Tierney, John C, McLean, Leroy L, Johnson, Lawrence L, & Verbael, David J. Metal spray apparatus with a U-shaped electric inlet gas heater and a one-piece electric heater surrounding a nozzle. United States.
Glovan, Ronald J, Tierney, John C, McLean, Leroy L, Johnson, Lawrence L, and Verbael, David J. Sun . "Metal spray apparatus with a U-shaped electric inlet gas heater and a one-piece electric heater surrounding a nozzle". United States. https://www.osti.gov/servlets/purl/870124.
@article{osti_870124,
title = {Metal spray apparatus with a U-shaped electric inlet gas heater and a one-piece electric heater surrounding a nozzle},
author = {Glovan, Ronald J and Tierney, John C and McLean, Leroy L and Johnson, Lawrence L and Verbael, David J},
abstractNote = {An electrically heated 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

Patent:

Save / Share: