JPS5575874A - Production of tough cast iron casting - Google Patents
Production of tough cast iron castingInfo
- Publication number
- JPS5575874A JPS5575874A JP14821678A JP14821678A JPS5575874A JP S5575874 A JPS5575874 A JP S5575874A JP 14821678 A JP14821678 A JP 14821678A JP 14821678 A JP14821678 A JP 14821678A JP S5575874 A JPS5575874 A JP S5575874A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- portions
- 10aw10d
- cooling materials
- cooling
- 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.)
- Pending
Links
- 238000005266 casting Methods 0.000 title abstract 3
- 229910001018 Cast iron Inorganic materials 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000001816 cooling Methods 0.000 abstract 5
- 239000000463 material Substances 0.000 abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910000805 Pig iron Inorganic materials 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
PURPOSE: To improve the mechanical strength of the places required partially for castings by using the sand mold comprising burying the cooling materials of good heat conduction and large heat capacity to the circumference of the hollow part of the mold corresponding to the central portion of the cast part.
CONSTITUTION: Cooling materials 10aW10d of good heat conductivity and large heat capacity are buried in the required places of the upper mold 7a, lower mold 7b and core 8 around the hollow part 9 of the mold 7 corresponding to the central portion of the cast part. When pig iron of suitable compositions is melted, is added with Mg, etc. in a ladle and is then poured into said mold 7, then the portions corresponding to the cooling materials 10aW10d are quenched and the rate of cooling at the solidification increases, hence the portions near the cooling materials 10aW10d become of the graphite structure wherein spherical form and flake form are mixed. The other portions are slow cooled, whereby the graphite flake structure is yielded. Thereby, the mechanical strength of the central portions of the upper and lower walls of the casting is enhanced and the tough cast iron cast part which does not impair the machineability of the portions requiring machining is obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14821678A JPS5575874A (en) | 1978-11-30 | 1978-11-30 | Production of tough cast iron casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14821678A JPS5575874A (en) | 1978-11-30 | 1978-11-30 | Production of tough cast iron casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5575874A true JPS5575874A (en) | 1980-06-07 |
Family
ID=15447859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14821678A Pending JPS5575874A (en) | 1978-11-30 | 1978-11-30 | Production of tough cast iron casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5575874A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0197741A2 (en) * | 1985-04-02 | 1986-10-15 | Reed Tool Company Limited | Improvements in or relating to rotary drill bits and methods of manufacture thereof |
| JPS63174777A (en) * | 1987-01-12 | 1988-07-19 | Honda Motor Co Ltd | Die for casting |
| JPS63174776A (en) * | 1987-01-12 | 1988-07-19 | Honda Motor Co Ltd | Die casting method |
| JPH01107958A (en) * | 1987-10-19 | 1989-04-25 | Honda Motor Co Ltd | Casting and casting method thereof |
-
1978
- 1978-11-30 JP JP14821678A patent/JPS5575874A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0197741A2 (en) * | 1985-04-02 | 1986-10-15 | Reed Tool Company Limited | Improvements in or relating to rotary drill bits and methods of manufacture thereof |
| JPS63174777A (en) * | 1987-01-12 | 1988-07-19 | Honda Motor Co Ltd | Die for casting |
| JPS63174776A (en) * | 1987-01-12 | 1988-07-19 | Honda Motor Co Ltd | Die casting method |
| JPH0455775B2 (en) * | 1987-01-12 | 1992-09-04 | Honda Motor Co Ltd | |
| JPH01107958A (en) * | 1987-10-19 | 1989-04-25 | Honda Motor Co Ltd | Casting and casting method thereof |
| JPH0455776B2 (en) * | 1987-10-19 | 1992-09-04 | Honda Motor Co Ltd |
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