JPS6418563A - Method for casting alloy without any segregation - Google Patents
Method for casting alloy without any segregationInfo
- Publication number
- JPS6418563A JPS6418563A JP17396287A JP17396287A JPS6418563A JP S6418563 A JPS6418563 A JP S6418563A JP 17396287 A JP17396287 A JP 17396287A JP 17396287 A JP17396287 A JP 17396287A JP S6418563 A JPS6418563 A JP S6418563A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- melting
- temp
- pressure
- deltat
- 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
Abstract
PURPOSE:To produce an alloy without any segregation by adding the specific pressure at the temp. of just above the solidified temp. of the alloy at the time of solidifying after melting the alloy and solidifying the alloy under over-cooling condition. CONSTITUTION:At the time of solidifying after melting the alloy, at the temp. of just above the m.p. of this alloy, the pressure deltap (atm) is added to the atmospheric pressure so as to become deltaT>=50 deg.C as shown in the equation deltaT=k( v/ h)Tf.deltap and solidification of the alloy is completed before distribution of solute is widely developed by making over-cooling state of the alloy. In the equation, each term shows as follows. deltaT: over-cooling temp. ( deg.C) v: volume change according to melting of the element having the largest wt.% among components composing the alloy (cm<3>/mol) h: enthalpy change according to melting of the element having the largest wt.% among components composing the alloy (cal/mol) Tf: m.p. of the element having the largest wt.% among components composing the alloy ( deg.C) deltap: pressure to be added to the atmospheric pressure (atm) k: coefficient according to the unit change (41.30)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17396287A JPH07112620B2 (en) | 1987-07-14 | 1987-07-14 | Casting method of alloy without segregation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17396287A JPH07112620B2 (en) | 1987-07-14 | 1987-07-14 | Casting method of alloy without segregation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6418563A true JPS6418563A (en) | 1989-01-23 |
| JPH07112620B2 JPH07112620B2 (en) | 1995-12-06 |
Family
ID=15970268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17396287A Expired - Lifetime JPH07112620B2 (en) | 1987-07-14 | 1987-07-14 | Casting method of alloy without segregation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07112620B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6207302B1 (en) | 1997-03-04 | 2001-03-27 | Denso Corporation | Electroluminescent device and method of producing the same |
-
1987
- 1987-07-14 JP JP17396287A patent/JPH07112620B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6207302B1 (en) | 1997-03-04 | 2001-03-27 | Denso Corporation | Electroluminescent device and method of producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07112620B2 (en) | 1995-12-06 |
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