JPS558321A - Repair method of steel ingot casting mold and molding board - Google Patents
Repair method of steel ingot casting mold and molding boardInfo
- Publication number
- JPS558321A JPS558321A JP8000478A JP8000478A JPS558321A JP S558321 A JPS558321 A JP S558321A JP 8000478 A JP8000478 A JP 8000478A JP 8000478 A JP8000478 A JP 8000478A JP S558321 A JPS558321 A JP S558321A
- Authority
- JP
- Japan
- Prior art keywords
- pure iron
- groove
- segmented
- core material
- molten
- 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
Abstract
PURPOSE: To prevent rupture by thermal shock through toughness of pure iron core material by grooving the broken portion, pouring molten pure iron formed through reaction of thermit agent as the core material in this groove and allowing the same to harden then build-up welding the cast iron on top thereof and finishing the weld.
CONSTITUTION: Broken part of a steel ingot casting mold 1 is grooved 2 and is segmented to segmented grooves 2A thru D each of not less than 20mm in depth, not more than 250mm in side length and not more than 1l in volume by partition steel plates 3. Next, the segmented groove 2A is preheated to about 400°C, after which a crucible 5 for reaction containing thermit agent 6 is placed on the groove and is then ignited to allow the molten pure iron to flow out from the crucible bottom hole and fill the groove 2A with the molten pure iron. From this point on, the molten pure iron is filled in the grooves 2B thru D in the similar manner without making preheating. Next, the molten pure iron is allowed to harden, after which pure iron is build-up welded as core material on the top of the pure iron and is then finished.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8000478A JPS558321A (en) | 1978-07-01 | 1978-07-01 | Repair method of steel ingot casting mold and molding board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8000478A JPS558321A (en) | 1978-07-01 | 1978-07-01 | Repair method of steel ingot casting mold and molding board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS558321A true JPS558321A (en) | 1980-01-21 |
| JPS6111702B2 JPS6111702B2 (en) | 1986-04-04 |
Family
ID=13706179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8000478A Granted JPS558321A (en) | 1978-07-01 | 1978-07-01 | Repair method of steel ingot casting mold and molding board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS558321A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6171156A (en) * | 1984-09-14 | 1986-04-12 | Nisshin Steel Co Ltd | Repairing method of casting mold |
| CN104039482A (en) * | 2011-12-15 | 2014-09-10 | 维斯塔斯风力系统集团公司 | A method of repairing defects in cast iron workpieces, and a method of connecting cast iron workpieces |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0334002U (en) * | 1989-08-03 | 1991-04-03 | ||
| JP2005349567A (en) * | 2005-08-05 | 2005-12-22 | Tadayuki Nishino | Cast iron-made product reproducing method |
-
1978
- 1978-07-01 JP JP8000478A patent/JPS558321A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6171156A (en) * | 1984-09-14 | 1986-04-12 | Nisshin Steel Co Ltd | Repairing method of casting mold |
| CN104039482A (en) * | 2011-12-15 | 2014-09-10 | 维斯塔斯风力系统集团公司 | A method of repairing defects in cast iron workpieces, and a method of connecting cast iron workpieces |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6111702B2 (en) | 1986-04-04 |
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