JPS552705A - As-cast metal of pearlitic spheroidal graphite cast iron - Google Patents

As-cast metal of pearlitic spheroidal graphite cast iron

Info

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
Application number
JP7319478A
Other languages
Japanese (ja)
Inventor
Shuji Ono
Masakatsu Fukuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP7319478A priority Critical patent/JPS552705A/en
Publication of JPS552705A publication Critical patent/JPS552705A/en
Pending legal-status Critical Current

Links

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
JP7319478A 1978-06-19 1978-06-19 As-cast metal of pearlitic spheroidal graphite cast iron Pending JPS552705A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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