JPS6018249A - High emissivity investment casting mold for casting super alloy by unidirectional solidification - Google Patents
High emissivity investment casting mold for casting super alloy by unidirectional solidificationInfo
- Publication number
- JPS6018249A JPS6018249A JP12658883A JP12658883A JPS6018249A JP S6018249 A JPS6018249 A JP S6018249A JP 12658883 A JP12658883 A JP 12658883A JP 12658883 A JP12658883 A JP 12658883A JP S6018249 A JPS6018249 A JP S6018249A
- Authority
- JP
- Japan
- Prior art keywords
- casting mold
- lower oxide
- mold
- high emissivity
- casting
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
Description
【発明の詳細な説明】
チクニア(“J’、i、02)は還元雰囲気■3.10
00°C以上で加熱すると次第にJ’i02中の酸素が
放出され、チクニアの低次酸化物に変化するとともに、
チタニア白痢、次第に黒色化し放I、1率も開化する。[Detailed description of the invention] Chikunia (“J', i, 02) is a reducing atmosphere ■3.10
When heated above 00°C, oxygen in J'i02 is gradually released and changes to lower oxides of chiknia,
Titania dysentery gradually turns black and becomes open to the public.
チタニアの酸化度と色調および放J&=1率の開化を次
の表に示した。The oxidation degree, color tone, and release rate of titania are shown in the following table.
このように、チタニアは低次酸化物に移行するとともに
色調が変化し、当然のととく放射率も変化して、黒色化
した’rio、、y、、〜Ti−0.,65のものは高
放射率となる。ちなみに1.!; 00 ’Cにおいて
測定した’IJ−0,,と’I’ 5−0.、、5〜T
101,65に入る低次酸化物を比較してみると約3倍
近くの差があり、’no2の低次酸化物は高放射率とな
ることが明らかである。In this way, as titania transitions to a lower oxide, its color tone changes, and of course its emissivity also changes, resulting in a blackened 'rio,,y,,~Ti-0. , 65 has a high emissivity. By the way, 1. ! 'IJ-0,, measured at 00'C, and 'I' 5-0. ,,5~T
Comparing the lower oxides of No. 101 and 65, there is a difference of nearly three times, and it is clear that the low-order oxide of No. 2 has a high emissivity.
このように、高放射率を有するチタニアの低次酸化物を
インベストメントシエ/l/タテ型の外層Kfl促進さ
れる。In this way, a low-order oxide of titania having a high emissivity is promoted as an investment layer/l/vertical type outer layer Kfl.
次に、実施例により、本発明の詳細な説明すτ。Next, the present invention will be explained in detail by way of examples.
実施例/
実施例/では、黒色化したチタニアの低次酸化物をブチ
ルチタネートの結合材により塗布し、外層を形成する。Example/ In Example/, a blackened lower oxide of titania is applied with a binder of butyl titanate to form an outer layer.
ブチルチタネートは高温焼成にょpTi02から次第に
TiO2−尤の形となり、添加したチタニアの低次酸化
物とともに高放射率の外層を有スるインイヌ1−メント
鋳型となる。The butyl titanate gradually changes from the high-temperature fired pTi02 to the TiO2-like form, and together with the added lower oxide of titania, becomes an in-product mold having a high emissivity outer layer.
実施例2
実施例2で得られたインベストメン1−鋳型の焼成前は
白色の外層を有した鋳型であるが、とのシエ)V鋳型を
還元雰囲気中、7200°Cで7時間焼成することによ
り外層の’L’i02から次第に酸素が抜けて低次酸化
物に変化するとともに外層は黒色化し、高放射率を有す
るインベヌトメント鋳型となる。Example 2 The Investmen 1-Mold obtained in Example 2 is a mold with a white outer layer before firing. As a result, oxygen gradually escapes from 'L'i02 in the outer layer and changes to a lower-order oxide, and the outer layer turns black, resulting in an inventive mold having a high emissivity.
第1図には、実施例/で?1)られた高放射率インベヌ
トメント鋳型を示す。
第3図には、実施例−により高放射率インベヌトメント
鋳型が得られる過程を示す。FIG. 1 shows an example/in? 1) Shows the high emissivity inventive mold. FIG. 3 shows the process of obtaining a high emissivity injection mold according to the example.
Claims (2)
くは黒〔5化したU’j−0,,75〜T:LO,,6
5の粉末をシェル層の外層部に被覆した高放創串インベ
ストメント鋳型。(1) Lower oxide of chikunia (']'102), preferably black [5-ized U'j-0,,75~T:LO,,6
A high-radiation skewer investment mold in which the outer layer of the shell layer is coated with powder No. 5.
チクニア(’I’i0□)を被覆し、この鋳型を還元雰
囲気中高温、好ましくは1000°C以上に加熱して、
チタニアの被覆層を7項に記したような黒色化したチク
ニアの低次酸化物(Ti−o2−χ)とした高放射率イ
ンベラ1ノントVf型。(2) In the process of manufacturing the shell/l/mold, the outer layer is coated with chikunia ('I'i0□), and the mold is heated to a high temperature, preferably 1000°C or higher, in a reducing atmosphere.
A high emissivity Invera 1 Nont Vf type in which the titania coating layer is a blackened lower oxide of titania (Ti-O2-χ) as described in Section 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12658883A JPS6018249A (en) | 1983-07-12 | 1983-07-12 | High emissivity investment casting mold for casting super alloy by unidirectional solidification |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12658883A JPS6018249A (en) | 1983-07-12 | 1983-07-12 | High emissivity investment casting mold for casting super alloy by unidirectional solidification |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6018249A true JPS6018249A (en) | 1985-01-30 |
JPH0468058B2 JPH0468058B2 (en) | 1992-10-30 |
Family
ID=14938891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12658883A Granted JPS6018249A (en) | 1983-07-12 | 1983-07-12 | High emissivity investment casting mold for casting super alloy by unidirectional solidification |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6018249A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106393403A (en) * | 2016-11-07 | 2017-02-15 | 九牧厨卫股份有限公司 | Maintenance method for high-pressure casting mold |
-
1983
- 1983-07-12 JP JP12658883A patent/JPS6018249A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106393403A (en) * | 2016-11-07 | 2017-02-15 | 九牧厨卫股份有限公司 | Maintenance method for high-pressure casting mold |
CN106393403B (en) * | 2016-11-07 | 2019-02-26 | 九牧厨卫股份有限公司 | A kind of high pressure casting mold maintenance method |
Also Published As
Publication number | Publication date |
---|---|
JPH0468058B2 (en) | 1992-10-30 |
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