JPS57174428A - Method for making cast structure fine - Google Patents

Method for making cast structure fine

Info

Publication number
JPS57174428A
JPS57174428A JP7530380A JP7530380A JPS57174428A JP S57174428 A JPS57174428 A JP S57174428A JP 7530380 A JP7530380 A JP 7530380A JP 7530380 A JP7530380 A JP 7530380A JP S57174428 A JPS57174428 A JP S57174428A
Authority
JP
Japan
Prior art keywords
boride
cast structure
fine
molten metal
compound
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
JP7530380A
Other languages
Japanese (ja)
Inventor
Seishi Tachibana
Shunji Tachibana
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7530380A priority Critical patent/JPS57174428A/en
Publication of JPS57174428A publication Critical patent/JPS57174428A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make molten metal surely fine without causing a change with the passage of time by combining the diffusibility of a high m.p. boride predominant at high temp. with the action of a high m.p. compound such as a nitride.
CONSTITUTION: The boride of an alkaline earth metal, a rare earth metal or a peritectic reaction type inorg. element shows the capacity of making a cast structure fine at high temp. By adding the boride to molten metal together with a high m.p. compound such as the nitride or the acetylene compound of an alkaline earth meral or a peritectic reaction type inorg. element, the whole molten metal is cleaned by dehydrogenation and deoxidation caused by the thermal decomposition of the compounds. Accordingly, the effect of making a cast structure fine is improved to make a cast structure surely fine without causing a change with the passage of time, and a high grade casting free from a flaw is obtd. The used boride is a self-diffusion type boride such as BaB6 or CaB6 or a potential diffusion type boride such as Mg3B2.
COPYRIGHT: (C)1982,JPO&Japio
JP7530380A 1980-06-04 1980-06-04 Method for making cast structure fine Pending JPS57174428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7530380A JPS57174428A (en) 1980-06-04 1980-06-04 Method for making cast structure fine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7530380A JPS57174428A (en) 1980-06-04 1980-06-04 Method for making cast structure fine

Publications (1)

Publication Number Publication Date
JPS57174428A true JPS57174428A (en) 1982-10-27

Family

ID=13572343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7530380A Pending JPS57174428A (en) 1980-06-04 1980-06-04 Method for making cast structure fine

Country Status (1)

Country Link
JP (1) JPS57174428A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5424031A (en) * 1992-01-08 1995-06-13 Elkem Aluminium Ans Grain refining alloy and a method for grain refining of aluminum and aluminum alloys

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5424031A (en) * 1992-01-08 1995-06-13 Elkem Aluminium Ans Grain refining alloy and a method for grain refining of aluminum and aluminum alloys
US5582791A (en) * 1992-01-08 1996-12-10 Elkem Aluminum Ans Method for grain refining of aluminum and grain refining alloy

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