JPS5719342A - Refractory lined lance for blowing gas into molten metal - Google Patents
Refractory lined lance for blowing gas into molten metalInfo
- Publication number
- JPS5719342A JPS5719342A JP9231680A JP9231680A JPS5719342A JP S5719342 A JPS5719342 A JP S5719342A JP 9231680 A JP9231680 A JP 9231680A JP 9231680 A JP9231680 A JP 9231680A JP S5719342 A JPS5719342 A JP S5719342A
- Authority
- JP
- Japan
- Prior art keywords
- studs
- pipe
- bar
- lance
- notch
- 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.)
- Granted
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
PURPOSE: To manufacture a lance having a long life by using an elastic pipe having an inside diameter equal to the outside diameter of a steel bar for reinforcement as an expandion absorbing material, making a notch in the pipe in the longitudinal direction, and cutting through holes for studs in the pipe at intervals equal to those of the studs on the surface of the steel bar.
CONSTITUTION: Each steel bar 2 for reinforcement having studs 3 is welded to the outside of a gas duct 1 in the longitudinal direction, and the duct 1 and the bar 2 are covered with a refractory lining layer 6 to manufacture a refractory lined lance for blowing gas into molten metal. Each elastic pipe 4 having an inside diameter almost equal to the outside diameter of the bar 2 is used as the expansion absorbing material 4 of the lance. A notch 4' is made in the pipe 4 in the longitudinal direction, and through holes 5 for the studs 3 are further cut in the pipe 4 at intervals equal to those of the studs 3 on the surface of the bar 2. When the material 4 is attached to the bar 2, the notch 4' is expanded to pass the studs 3 through the holes 5, and the material 4 is attached from the notch 4'.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9231680A JPS5925013B2 (en) | 1980-07-08 | 1980-07-08 | Molten metal gas blown refractory lining lance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9231680A JPS5925013B2 (en) | 1980-07-08 | 1980-07-08 | Molten metal gas blown refractory lining lance |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5719342A true JPS5719342A (en) | 1982-02-01 |
JPS5925013B2 JPS5925013B2 (en) | 1984-06-13 |
Family
ID=14050987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9231680A Expired JPS5925013B2 (en) | 1980-07-08 | 1980-07-08 | Molten metal gas blown refractory lining lance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5925013B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111727304B (en) | 2018-01-11 | 2022-10-25 | 伊顿智能动力有限公司 | Multi-mode valve lift |
-
1980
- 1980-07-08 JP JP9231680A patent/JPS5925013B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5925013B2 (en) | 1984-06-13 |
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