GB1173161A – Improvements in or relating to the Melting of Metal
– Google Patents
GB1173161A – Improvements in or relating to the Melting of Metal
– Google Patents
Improvements in or relating to the Melting of Metal
Info
Publication number
GB1173161A
GB1173161A
GB37985/66A
GB3798566A
GB1173161A
GB 1173161 A
GB1173161 A
GB 1173161A
GB 37985/66 A
GB37985/66 A
GB 37985/66A
GB 3798566 A
GB3798566 A
GB 3798566A
GB 1173161 A
GB1173161 A
GB 1173161A
Authority
GB
United Kingdom
Prior art keywords
wall
metal
crucible
photo
radiation
Prior art date
1966-08-24
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB37985/66A
Inventor
Karel Saxl
William Melville
John Bardwell Curzgen Robinson
Dudley Mellor Peake
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Metal Industries Kynoch Ltd
Original Assignee
Imperial Metal Industries Kynoch Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1966-08-24
Filing date
1966-08-24
Publication date
1969-12-03
1966-08-24
Application filed by Imperial Metal Industries Kynoch Ltd
filed
Critical
Imperial Metal Industries Kynoch Ltd
1966-08-24
Priority to GB37985/66A
priority
Critical
patent/GB1173161A/en
1969-12-03
Publication of GB1173161A
publication
Critical
patent/GB1173161A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F27—FURNACES; KILNS; OVENS; RETORTS
F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
F27D11/00—Arrangement of elements for electric heating in or on furnaces
C—CHEMISTRY; METALLURGY
C21—METALLURGY OF IRON
C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
C21C5/52—Manufacture of steel in electric furnaces
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F27—FURNACES; KILNS; OVENS; RETORTS
F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
F27B14/00—Crucible or pot furnaces
F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/00—Technologies related to metal processing
Y02P10/20—Recycling
Abstract
1,173,161. Photo-electric monitoring of crucible wall. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. Aug. 11, 1967 [Aug.24, 1966], No.37985/66. Heading G1A. In an apparatus and a method for indicating excessive melting of the crucible wall in the consumable electrode arc melting of metal, radiation emitted by the wall or by metal liquefied or vaporized during the process is monitored. Radiation from the wall may be segregated mechanically, or at least one wavelength or band of wavelengths may be chosen from the emission spectrum of the wall material. Alternatively the vapour within the crucible may be extracted and fed to an electrical discharge cell the optical radiation from which may be selectively monitored. Radiation from a port 5 viewing the annulus between the charge and the crucible is applied through lenses and slits to a photo-cell 10 which may be a photo-multiplier and the output is fed to a bridge 13 for comparison with a reference voltage, or with a voltage from one or more other spectral lines from the same area selected to compensate for variations which are common to the metal being melted and the crucible metal. The bridge unbalance is measured in a unit 20, and is integrated in a unit 22 for different selectable periods e.g. 1/10, 1 or 10 seconds and an alarm 30, 31, and possibly furnace shut-down equipment are operated if the integrated figure exceeds the corresponding standard injected by unit 26. The beams from viewer 5 may be split by an inclined mirror system, a refractory prism, or a diffraction grating and in the case of the mirrors fed to a pair of photo-multipliers through a respective pair of filters. The Specification describes the melting of titanium in a two stage process, and the use of copper, stainless steel, or aluminium, water-cooled crucibles. An inert gas may be injected in the vicinity of the viewing ports or the ports may be segments of a rotatable window to prevent fogging, and marker elements such as cadmium may be introduced into the wall for recognition by the monitoring system.
GB37985/66A
1966-08-24
1966-08-24
Improvements in or relating to the Melting of Metal
Expired
GB1173161A
(en)
Priority Applications (1)
Application Number
Priority Date
Filing Date
Title
GB37985/66A
GB1173161A
(en)
1966-08-24
1966-08-24
Improvements in or relating to the Melting of Metal
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB37985/66A
GB1173161A
(en)
1966-08-24
1966-08-24
Improvements in or relating to the Melting of Metal
Publications (1)
Publication Number
Publication Date
GB1173161A
true
GB1173161A
(en)
1969-12-03
Family
ID=10400402
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB37985/66A
Expired
GB1173161A
(en)
1966-08-24
1966-08-24
Improvements in or relating to the Melting of Metal
Country Status (1)
Country
Link
GB
(1)
GB1173161A
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2507051A1
(en)
*
1981-05-26
1982-12-03
Leybold Heraeus Gmbh & Co Kg
METHOD FOR MONITORING MELTING IN VACUUM ARC FURNACES
GB2171513A
(en)
*
1985-02-19
1986-08-28
Atomic Energy Authority Uk
A safety system for a laser-beam utilising facility
1966
1966-08-24
GB
GB37985/66A
patent/GB1173161A/en
not_active
Expired
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2507051A1
(en)
*
1981-05-26
1982-12-03
Leybold Heraeus Gmbh & Co Kg
METHOD FOR MONITORING MELTING IN VACUUM ARC FURNACES
GB2171513A
(en)
*
1985-02-19
1986-08-28
Atomic Energy Authority Uk
A safety system for a laser-beam utilising facility
GB2171513B
(en)
*
1985-02-19
1989-08-31
Atomic Energy Authority Uk
Safety system for laser-utilising facilities
Similar Documents
Publication
Publication Date
Title
EP0176625A2
(en)
1986-04-09
Method of laser emission spectroscopical analysis of steel and apparatus therefor
KR840000536B1
(en)
1984-04-20
Method for monitoring arc welding
Skinner
1980
Efficient ionisation of calcium, strontium and barium by resonant laser pumping
CN1067398A
(en)
1992-12-30
Method and apparatus with the casting arc melted metal material of ingot form
US5621751A
(en)
1997-04-15
Controlling electrode gap during vacuum arc remelting at low melting current
GB1173161A
(en)
1969-12-03
Improvements in or relating to the Melting of Metal
US4435818A
(en)
1984-03-06
Method and apparatus for monitoring the melting process in vacuum arc furnaces
SU541447A3
(en)
1976-12-30
Installation for analysis of molten matter
EP0184590A1
(en)
1986-06-18
Method of continuously analyzing fluidized body by laser
Mork et al.
1988
Wavelength-resolved single-spark emission images with the use of a charge coupled device detector
CA2019008A1
(en)
1990-12-15
Process and apparatus for measuring the instability of an arc in an electric furnace used for molten metal treatment
JPH0341327A
(en)
1991-02-21
Apparatus for measuring radiation temperature of melt in vacuum
Williamson et al.
1987
Plasma studies in vacuum arc remelting
Johansson et al.
1972
The 4f2-4f5d Lines of Ce III
JPS56114746A
(en)
1981-09-09
Direct analyzing method for molten metal with pulse laser light
Wegner et al.
1996
Early spectra of the supernova 1987F
US3735592A
(en)
1973-05-29
Apparatus for protection of a gas jet generator
Xin et al.
1993
The D1Π-X1Σ and D1Π-A1Δ Transitions in YCI Investigated by Laser-Induced Fluorescence
Williamson et al.
1994
Ion emission intensity ratios as a function of electrode gap, melting current, and pressure during low current vacuum arc remelting
Bedrin et al.
2003
Compact spectral analyzer of heavy-metal impurities in air
SU362203A1
(en)
1972-12-13
METHOD FOR PREVENTING AN EXPLOSION IN VACUUM ARC FURNACES
Methling et al.
2018
Spectroscopic and Thermographic Analysis of Anode Spots from Visible to Infrared
GB778407A
(en)
1957-07-10
Improvements relating to methods of and apparatus for controlling the course of metallurgical processes
Grove et al.
1970
Development of a Portable Direct Reading Spectrometer to Monitor Oxygen-Hydrogen Containing Contaminants in Gas Tungsten-Arc Process Shields
Halliwell
1983
Development of an Acousto-optic Astronomical Photometer
Legal Events
Date
Code
Title
Description
1970-04-15
PS
Patent sealed
1973-03-07
PLNP
Patent lapsed through nonpayment of renewal fees
