GB792192A - Improvements in or relating to the addition of alloying elements and other substances to steel and other metals - Google Patents

Improvements in or relating to the addition of alloying elements and other substances to steel and other metals

Info

Publication number
GB792192A
GB792192A GB839954A GB839954A GB792192A GB 792192 A GB792192 A GB 792192A GB 839954 A GB839954 A GB 839954A GB 839954 A GB839954 A GB 839954A GB 792192 A GB792192 A GB 792192A
Authority
GB
United Kingdom
Prior art keywords
duct
container
bore
inch
discharge
Prior art date
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
GB839954A
Inventor
Henry Spriggs
William Benjamin Wragge
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.)
LEDLOY Ltd
Original Assignee
LEDLOY 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.)
Filing date
Publication date
Application filed by LEDLOY Ltd filed Critical LEDLOY Ltd
Priority to GB839954A priority Critical patent/GB792192A/en
Publication of GB792192A publication Critical patent/GB792192A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0068—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by introducing material into a current of streaming metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Multimedia (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

792,192. Adding powdered material to molten metals. LEDLOY, Ltd. Sept. 5, 1955 [June 3, 1954], No. 8399/54. Class 82(1) [Also in Group XXX] Solid materials such as lead, lead alloys or lead compounds, are added in subdivided form to a stream of molten metal by propelling the material from a storage container along a feeding duct which is connected to one part of the container and has a discharge opening in proximity to the liquid stream, the propulsion taking place under pressure of a gas supplied to the container at a position spaced from the end of the duct connected thereto. The duct has a discharge passage with a bore less than, the bore of the duct at the point of connection with the container, the bore of the discharge passage being sufficiently small, having regard to the size of the particles to be discharged, to retain the material against gravitational discharge when the gas pressure is cut off. In the apparatus shown in Fig. 1 material is supplied as required from hopper 22 to container 10, valve 23 is then closed and gas pressure is applied from the duct 13 forcing the material into and through duct 18. The discharge end of the duct has a tapering portion 21 and a constricted orifice 20. For use with lead shot of particle diameter 0.01-0.05 inch the tube 18 may have a bore of 1 inch and the constriction 20 a bore of 3/16 to 1/4 inch. The constricted portion may extend from the outlet over more than half of the length of the duct. Fig. 2 shows such a modification in which the feed duct 27 has a restricted diameter, e.g. “ inch, in relation to the bore 25 adjacent the point of connection of the duct with the container. The duct is conneted to the container through an orifice 20 a bore of 3/16 to 104 inchfl The constricfications a valve 14 is inserted between the container and the duct to prevent discharge of material when the apparatus is not in use. Specifications 519,572 and 520,227 are referred to.
GB839954A 1954-06-03 1954-06-03 Improvements in or relating to the addition of alloying elements and other substances to steel and other metals Expired GB792192A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB839954A GB792192A (en) 1954-06-03 1954-06-03 Improvements in or relating to the addition of alloying elements and other substances to steel and other metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB839954A GB792192A (en) 1954-06-03 1954-06-03 Improvements in or relating to the addition of alloying elements and other substances to steel and other metals

Publications (1)

Publication Number Publication Date
GB792192A true GB792192A (en) 1958-03-19

Family

ID=9851798

Family Applications (1)

Application Number Title Priority Date Filing Date
GB839954A Expired GB792192A (en) 1954-06-03 1954-06-03 Improvements in or relating to the addition of alloying elements and other substances to steel and other metals

Country Status (1)

Country Link
GB (1) GB792192A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015335A1 (en) * 1979-03-12 1980-09-17 Duport Steels Limited Method of and apparatus for making additions of particles to molten metal
EP0092764A1 (en) * 1982-04-22 1983-11-02 Inland Steel Company Method of adding ingredient to steel as shot
EP0354039A2 (en) * 1988-08-04 1990-02-07 Elkem A/S Inoculant dispensing apparatus for molted metal ladle
ITUD20110060A1 (en) * 2011-04-18 2012-10-19 Danieli Off Mecc DEVICE FOR INJECTION OF SOLID MATERIAL IN A LIQUID METAL BATH, AND ITS PROCEDURE

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015335A1 (en) * 1979-03-12 1980-09-17 Duport Steels Limited Method of and apparatus for making additions of particles to molten metal
EP0092764A1 (en) * 1982-04-22 1983-11-02 Inland Steel Company Method of adding ingredient to steel as shot
EP0354039A2 (en) * 1988-08-04 1990-02-07 Elkem A/S Inoculant dispensing apparatus for molted metal ladle
EP0354039A3 (en) * 1988-08-04 1990-05-02 Elkem A/S Inoculant dispensing apparatus for molted metal ladle
ITUD20110060A1 (en) * 2011-04-18 2012-10-19 Danieli Off Mecc DEVICE FOR INJECTION OF SOLID MATERIAL IN A LIQUID METAL BATH, AND ITS PROCEDURE
WO2012143774A1 (en) 2011-04-18 2012-10-26 Danieli & C. Officine Meccaniche Spa Device to inject solid material into a bath of liquid metal, and corresponding method
CN103608635A (en) * 2011-04-18 2014-02-26 达涅利机械设备股份公司 Device to inject solid material into bath of liquid metal, and corresponding method

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