JPS552705A - As-cast metal of pearlitic spheroidal graphite cast iron - Google Patents
As-cast metal of pearlitic spheroidal graphite cast ironInfo
- Publication number
- JPS552705A JPS552705A JP7319478A JP7319478A JPS552705A JP S552705 A JPS552705 A JP S552705A JP 7319478 A JP7319478 A JP 7319478A JP 7319478 A JP7319478 A JP 7319478A JP S552705 A JPS552705 A JP S552705A
- Authority
- JP
- Japan
- Prior art keywords
- cast metal
- cast
- diameter
- amount
- spheroidal 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 title abstract 6
- 229910052751 metal Inorganic materials 0.000 title abstract 6
- 229910001141 Ductile iron Inorganic materials 0.000 title abstract 2
- 229910001562 pearlite Inorganic materials 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 238000010586 diagram Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
PURPOSE: To omit the heat treatment, and to obtain the titled cast metal stably keeping the pearlite percentage above 80%, by restricting the amount of C, Si, Mn, and residual Mg, and by controlling the amount of Cu in respect of diameter of the cast metal.
CONSTITUTION: The as-cast metal of the pearlitic spheroidal graphite cast iron is obtained with the composition as follows; 3.3%≤C≤3.6%, 2.1%≤Si≤2.6%, 0.5%≤Mn≤1.0%, 0.03%≤ residual Mg≤0.06%, (0.002D+0.1)%≤Cu≤2.0%, in which D means the diameter or equivalent wall thickness of the cast metal, and the balance Fe. In the diagram, the pearlite percentage above 80% can be obtained in the left upper region above the line B; this straight line B is formulated in respect of the diameter Dmmϕ of the cast metal and the amount of Cu, as Cu%= 0.002×D+0.05.
USE: The crank shaft of the farm engine or the automobile engine and the cylinder cover of the Diesel engine.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7319478A JPS552705A (en) | 1978-06-19 | 1978-06-19 | As-cast metal of pearlitic spheroidal graphite cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7319478A JPS552705A (en) | 1978-06-19 | 1978-06-19 | As-cast metal of pearlitic spheroidal graphite cast iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS552705A true JPS552705A (en) | 1980-01-10 |
Family
ID=13511079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7319478A Pending JPS552705A (en) | 1978-06-19 | 1978-06-19 | As-cast metal of pearlitic spheroidal graphite cast iron |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS552705A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6462439A (en) * | 1987-08-31 | 1989-03-08 | Mazda Motor | Casting of spheroidal graphite cast iron having excellent machinability |
| CN103088248A (en) * | 2011-11-01 | 2013-05-08 | 张玉新 | Formula of nodular cast iron used in automotive gear ring bracket |
| CN105945235A (en) * | 2016-06-30 | 2016-09-21 | 广西玉柴机器股份有限公司 | Crankshaft casting method |
-
1978
- 1978-06-19 JP JP7319478A patent/JPS552705A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6462439A (en) * | 1987-08-31 | 1989-03-08 | Mazda Motor | Casting of spheroidal graphite cast iron having excellent machinability |
| CN103088248A (en) * | 2011-11-01 | 2013-05-08 | 张玉新 | Formula of nodular cast iron used in automotive gear ring bracket |
| CN105945235A (en) * | 2016-06-30 | 2016-09-21 | 广西玉柴机器股份有限公司 | Crankshaft casting method |
| CN105945235B (en) * | 2016-06-30 | 2017-11-21 | 广西玉柴机器股份有限公司 | The casting method of bent axle |
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