JPS55152152A - Free cutting steel including adjusted interposing material - Google Patents
Free cutting steel including adjusted interposing materialInfo
- Publication number
- JPS55152152A JPS55152152A JP5971379A JP5971379A JPS55152152A JP S55152152 A JPS55152152 A JP S55152152A JP 5971379 A JP5971379 A JP 5971379A JP 5971379 A JP5971379 A JP 5971379A JP S55152152 A JPS55152152 A JP S55152152A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- interposing
- interposing material
- free
- cutting
- 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
- 239000000463 material Substances 0.000 title abstract 7
- 229910000915 Free machining steel Inorganic materials 0.000 title abstract 3
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 239000000155 melt Substances 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 229910000851 Alloy steel Inorganic materials 0.000 abstract 1
- 229910000975 Carbon steel Inorganic materials 0.000 abstract 1
- 229910000639 Spring steel Inorganic materials 0.000 abstract 1
- 229910001315 Tool steel Inorganic materials 0.000 abstract 1
- 238000007664 blowing Methods 0.000 abstract 1
- 239000010962 carbon steel Substances 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
PURPOSE: To enhance cutting properties through reduced mechanical anisotropy by incorporating into a free-cutting steel interposing materials having a high melting or softening point and a lower melting point, so as to form a specific configuration.
CONSTITUTION: An interposing material A such as Pb, Bi, SiO2K2O, etc. which softens or melts below 1,000°C and an interposing material B such as MnS, MnSe, etc. which melts above 1,300°C and is plastic at 900W1,300°C are throughly mixed in volume ratio of 1:100W150:100. The mixture is added and dispersed into molten steel which is forcedly stirred by blowing non-oxidizing gas. The process provides a free-cutting steel in which the interposing material A and B exist in mutually adhered state and is adjusted to have the surface ratio of the material A exceeding 1% of that of the material B. This method applies to structural carbon steel, alloy steel, heat resistant steel, stainless steel, bearing steel, tool steel, and spring steel.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5971379A JPS55152152A (en) | 1979-05-17 | 1979-05-17 | Free cutting steel including adjusted interposing material |
| DE19803018537 DE3018537A1 (en) | 1979-05-17 | 1980-05-14 | CONTROLLED INCLUDING AUTOMATIC STEEL AND METHOD FOR THE PRODUCTION THEREOF |
| FR8010823A FR2456785A1 (en) | 1979-05-17 | 1980-05-14 | DECOLLETING STEEL CONTAINING DETERMINED INCLUSIONS AND A PROCESS FOR THE PREPARATION THEREOF |
| US06/149,939 US4434006A (en) | 1979-05-17 | 1980-05-14 | Free cutting steel containing controlled inclusions and the method of making the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5971379A JPS55152152A (en) | 1979-05-17 | 1979-05-17 | Free cutting steel including adjusted interposing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55152152A true JPS55152152A (en) | 1980-11-27 |
| JPS6120624B2 JPS6120624B2 (en) | 1986-05-23 |
Family
ID=13121116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5971379A Granted JPS55152152A (en) | 1979-05-17 | 1979-05-17 | Free cutting steel including adjusted interposing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55152152A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6067614A (en) * | 1983-09-20 | 1985-04-18 | Daido Steel Co Ltd | Raw material for steel making |
| WO2009001644A1 (en) * | 2007-06-28 | 2008-12-31 | Kabushiki Kaisha Kobe Seiko Sho | Steel with excellent machinability for mechanical structure |
| JP2009035796A (en) * | 2007-08-03 | 2009-02-19 | Kobe Steel Ltd | Iron-containing mixed powder for powder metallurgy and sintered iron powder compact |
| WO2009096260A1 (en) * | 2008-01-28 | 2009-08-06 | Kabushiki Kaisha Kobe Seiko Sho | Steel for machine structural use with excellent machinability |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62177812U (en) * | 1986-04-30 | 1987-11-11 |
-
1979
- 1979-05-17 JP JP5971379A patent/JPS55152152A/en active Granted
Non-Patent Citations (3)
| Title |
|---|
| METAL PROGRESS=1960 * |
| NON METALLIC INCLUSIONS IN STEEL=1966 * |
| NON METALLIC INCLUSIONS IN STEEL=1968 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6067614A (en) * | 1983-09-20 | 1985-04-18 | Daido Steel Co Ltd | Raw material for steel making |
| WO2009001644A1 (en) * | 2007-06-28 | 2008-12-31 | Kabushiki Kaisha Kobe Seiko Sho | Steel with excellent machinability for mechanical structure |
| JP2009035796A (en) * | 2007-08-03 | 2009-02-19 | Kobe Steel Ltd | Iron-containing mixed powder for powder metallurgy and sintered iron powder compact |
| WO2009096260A1 (en) * | 2008-01-28 | 2009-08-06 | Kabushiki Kaisha Kobe Seiko Sho | Steel for machine structural use with excellent machinability |
| US8273292B2 (en) | 2008-01-28 | 2012-09-25 | Kobe Steel, Ltd. | Steel for machine and structural use having excellent machinability |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6120624B2 (en) | 1986-05-23 |
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