JPS55152104A - Manufacture of powder hot forged part - Google Patents
Manufacture of powder hot forged partInfo
- Publication number
- JPS55152104A JPS55152104A JP5828479A JP5828479A JPS55152104A JP S55152104 A JPS55152104 A JP S55152104A JP 5828479 A JP5828479 A JP 5828479A JP 5828479 A JP5828479 A JP 5828479A JP S55152104 A JPS55152104 A JP S55152104A
- Authority
- JP
- Japan
- Prior art keywords
- cast iron
- iron
- powder
- die
- graphite
- 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
- 239000000843 powder Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 6
- 229910001018 Cast iron Inorganic materials 0.000 abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 3
- 239000010953 base metal Substances 0.000 abstract 3
- 229910002804 graphite Inorganic materials 0.000 abstract 3
- 239000010439 graphite Substances 0.000 abstract 3
- 238000005242 forging Methods 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 229910001141 Ductile iron Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 abstract 1
- 239000010419 fine particle Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000010298 pulverizing process Methods 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To economically produce a powder hot forged parts having excellent mechanical properties by the steps of removing and reducing graphite content upon pulverizing a spheroidol graphite cast iron, then heating and cooling it in predetermined temperature range, forging it in a die and then diffusion sintering the cast iron.
CONSTITUTION: After the cutting chips of a spheroidal graphite cast iron are finely pulverized by a high speed hammer mill, the graphite-containing fine particles are partly removed by a cyclone to produce an iron powder containing 1.0W2.0% of C, 2W3% of Si and 0.2W0.9% of Mn with 60 mesh or less. This iron powder is press molded in a short strip or the like to produce a molded article having a density of 80W85% of base metal cast iron. A hot forging lubricant is coated on the surface of the cast iron, and the cast iron is heated at the melting point of the base metal to 1,300°C in a reducing atmosphere for 2W15 minutes. After the iron is so cooled then that the surface temperature may become 900W1,150°C, it is forged in a die to form it to a density of 100W110% of the base metal specific gravity. The iron is then heated at higher than the austenitizing temperature in the die to diffuse and sinter it. Thus, a powder hot forged parts having excellent properties can be produced by inexpensive stock material.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54058284A JPS5838481B2 (en) | 1979-05-12 | 1979-05-12 | Manufacturing method for powder hot forged parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54058284A JPS5838481B2 (en) | 1979-05-12 | 1979-05-12 | Manufacturing method for powder hot forged parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55152104A true JPS55152104A (en) | 1980-11-27 |
| JPS5838481B2 JPS5838481B2 (en) | 1983-08-23 |
Family
ID=13079884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54058284A Expired JPS5838481B2 (en) | 1979-05-12 | 1979-05-12 | Manufacturing method for powder hot forged parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5838481B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02108089U (en) * | 1989-02-14 | 1990-08-28 |
-
1979
- 1979-05-12 JP JP54058284A patent/JPS5838481B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5838481B2 (en) | 1983-08-23 |
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