JPH0217538U - - Google Patents
Info
- Publication number
- JPH0217538U JPH0217538U JP9705288U JP9705288U JPH0217538U JP H0217538 U JPH0217538 U JP H0217538U JP 9705288 U JP9705288 U JP 9705288U JP 9705288 U JP9705288 U JP 9705288U JP H0217538 U JPH0217538 U JP H0217538U
- Authority
- JP
- Japan
- Prior art keywords
- crucible
- firing
- utility
- model registration
- firing ceramics
- 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
- 238000010304 firing Methods 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 2
- 239000000843 powder Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Description
第１図ａ，ｂは本考案のルツボを用いた焼成の
態様を示す装置例の概略断面図、第２図は焼成の
タイムチヤート図、第３図ａは１段目の焼成温度
と１段目焼成後の焼結体実測密度との関係を示す
グラフ図、第３図ｂは１段目の焼成温度と１段目
焼成後の焼結体相対密度との関係を示すグラフ図
、第４図は１段目の焼成時間と１段目焼成後の焼
結体相対密度との関係を示すグラフ図、第５図は
１段目の焼成における酸素流量と１段目焼成後の
焼結体相対密度との関係を示すグラフ図、第６図
は１段目焼成後の焼結体相対密度と２段目焼成後
の焼結体透光率との関係を示すグラフ図、第７図
はＰｂＯ蒸気中でのアルミナ製ルツボの試験片、
マグネシア製ルツボの試験片の重量変化を示した
グラフ図である。
３……焼成すべきセラミツクス成形体、５ａ，
５ｂ……ルツボ本体、６ａ，６ｂ……蓋体。
Figures 1a and b are schematic cross-sectional views of an example of an apparatus showing the mode of firing using the crucible of the present invention, Figure 2 is a time chart of firing, and Figure 3a is the firing temperature of the first stage and the first stage. Figure 3b is a graph showing the relationship between the measured density of the sintered body after the first firing; The figure is a graph showing the relationship between the first-stage firing time and the relative density of the sintered body after the first-stage firing, and Figure 5 shows the oxygen flow rate during the first-stage firing and the sintered body after the first-stage firing. A graph showing the relationship between the relative density and Figure 6 is a graph showing the relationship between the relative density of the sintered body after the first firing and the transmittance of the sintered body after the second firing. Alumina crucible test piece in PbO vapor,
FIG. 2 is a graph showing changes in weight of a test piece of a magnesia crucible. 3... Ceramic molded body to be fired, 5a,
5b... Crucible body, 6a, 6b... Lid body.
Claims (1)
内部に収容して焼成するために用いるルツボであ
り、前記セラミツク成形体を収容すべきルツボ本
体５ａ，５ｂと、このルツボ本体の開口部を閉塞
する蓋体６ａ，６ｂとを備え、前記ルツボ本体５
ａ，５ｂの開口部と蓋体６ａ，６ｂの各当接面を
平滑面としたことを特徴とするセラミツクス焼成
用ルツボ。 (2) 材質がマグネシアである実用新案登録請求
の範囲第１項に記載のセラミツクス焼成用ルツボ
。 (3) 材質がアルミナである実用新案登録請求の
範囲第１項に記載のセラミツクス焼成用ルツボ。[Claims for Utility Model Registration] (1) A crucible used for storing and firing a molded body made of ceramic raw material powder; The crucible body 5 includes lids 6a and 6b that close the opening of the crucible body.
A crucible for firing ceramics, characterized in that the contact surfaces of the openings a and 5b and the lids 6a and 6b are smooth surfaces. (2) The crucible for firing ceramics according to claim 1 of the utility model registration claim, wherein the material is magnesia. (3) The crucible for firing ceramics according to claim 1 of the utility model registration claim, wherein the material is alumina.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9705288U JPH0217538U (en) | 1988-07-22 | 1988-07-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9705288U JPH0217538U (en) | 1988-07-22 | 1988-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0217538U true JPH0217538U (en) | 1990-02-05 |
Family
ID=31322258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9705288U Pending JPH0217538U (en) | 1988-07-22 | 1988-07-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0217538U (en) |
-
1988
- 1988-07-22 JP JP9705288U patent/JPH0217538U/ja active Pending
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