JPH0359961B2 - - Google Patents
Info
- Publication number
- JPH0359961B2 JPH0359961B2 JP58153164A JP15316483A JPH0359961B2 JP H0359961 B2 JPH0359961 B2 JP H0359961B2 JP 58153164 A JP58153164 A JP 58153164A JP 15316483 A JP15316483 A JP 15316483A JP H0359961 B2 JPH0359961 B2 JP H0359961B2
- Authority
- JP
- Japan
- Prior art keywords
- divided body
- support stand
- ceramic material
- isostatic pressing
- divided
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/001—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a flexible element, e.g. diaphragm, urged by fluid pressure; Isostatic presses
- B30B11/002—Isostatic press chambers; Press stands therefor
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】
本発明は熱間静水圧成形法で用いる熱間静水圧
成形炉の支持台に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support stand for a hot isostatic pressing furnace used in a hot isostatic pressing method.
熱間静水圧成形法（以下、HIP法）は、処理物
を等方圧縮すると同時に加熱処理が行えるので、
従来から種々の分野でHIP法の利用について研究
開発が行われている。 The hot isostatic pressing method (hereinafter referred to as HIP method) allows heat treatment to be performed at the same time as isostatic compression of the processed material.
Research and development on the use of the HIP method has been carried out in various fields.
第１図は、従来からHIP法で使用されてきた熱
間静水圧成形炉（以下、HIP炉）の一例を示す図
である。処理物１は、従来の支持台２に乗せられ
て圧力容器３内に収納されている。処理物１はヒ
ーター４によつて加熱されるとともに、まわりか
ら不活性ガスの圧力媒体５により圧縮される。６
は断熱層、７は上蓋、８は下蓋である。 FIG. 1 is a diagram showing an example of a hot isostatic pressing furnace (hereinafter referred to as a HIP furnace) that has been conventionally used in the HIP method. A workpiece 1 is placed on a conventional support stand 2 and stored in a pressure vessel 3. The object to be treated 1 is heated by a heater 4 and compressed by an inert gas pressure medium 5 from around it. 6
is a heat insulating layer, 7 is an upper lid, and 8 is a lower lid.
支持台２は高温（1000〜2000℃）、高圧（1000
〜2000Kg／cm2）に耐え、更に室温−加熱−冷却の
繰返しに耐えるものでなければならない。このた
め、従来から支持台２にはセラミツク材料が用い
られている。従来の支持台２に用いられるセラミ
ツクスの種類は、支持台２が用いられる条件によ
つてアルミナ質あるいは黒鉛質耐火材などが適宜
選択されて使用されていた。第２図は従来の支持
台の他の例を示すものである。従来の支持台２あ
るいは９で明らかなように、従来の支持台は一体
構造をしていた。 The support stand 2 is heated to high temperature (1000~2000℃) and high pressure (1000℃).
~2000Kg/cm 2 ), and must be able to withstand repeated cycles of heating and cooling at room temperature. For this reason, ceramic material has conventionally been used for the support base 2. The type of ceramic used for the conventional support stand 2 has been appropriately selected from alumina or graphite refractory material depending on the conditions under which the support stand 2 is used. FIG. 2 shows another example of the conventional support stand. As is clear from the conventional support stand 2 or 9, the conventional support stand has a monolithic structure.
従来の支持台には、実用上次のような問題があ
つた。 Conventional supports have had the following practical problems.
(1) 従来の支持台は大型一体構造（30〜90Kg／１
台）であるためHIP炉への着脱が容易ではなか
つた。(1) Conventional support stands have a large integrated structure (30~90Kg/1
It was not easy to attach and detach the HIP furnace.
(2) 支持台からの熱放散が大きかつた。(2) Heat dissipation from the support was large.
(3) 支持台の上部と下部で温度差が生じ、この温
度差のために熱歪（亀裂）が発生した（支持台
耐久度低下）。(3) There was a temperature difference between the upper and lower parts of the support, and this temperature difference caused thermal distortion (cracks) (decreased durability of the support).
(4) 上記(3)の亀裂からガスリークが生じ使用不能
になつた。(4) Gas leaked from the crack in (3) above, rendering it unusable.
このように従来の支持台は取扱いが不便である
ばかりでなく寿命が短く耐久性に乏しかつた。 As described above, conventional supports are not only inconvenient to handle, but also have short lifespans and lack durability.
本発明は上記の実情に鑑みてなされたもので、
耐久性にすぐれ、しかも扱い易い熱間静水圧成形
炉の支持台を提供することを目的とするものであ
る。 The present invention was made in view of the above circumstances, and
The object of the present invention is to provide a support stand for a hot isostatic pressing furnace that has excellent durability and is easy to handle.
本発明の熱間静水圧成形炉の支持台は、熱間静
水圧成形炉内で処理物を乗せる支持台であつて、
支持台を上下方向に２個以上の部分に分割し、上
部分割体を高強度高耐熱でかつ熱衝撃抵抗性の高
いセラミツク材料で形成し、少なくとも上部分割
体に接する分割体を断熱保温性にすぐれたセラミ
ツク材料で形成したことを特徴とするものであ
る。 The support stand of the hot isostatic pressing furnace of the present invention is a support stand on which a processed material is placed in the hot isostatic pressing furnace, and
The support base is divided into two or more parts in the vertical direction, the upper divided body is made of a ceramic material with high strength, high heat resistance, and high thermal shock resistance, and at least the divided body in contact with the upper divided body is made to have heat insulation and heat retention. It is characterized by being made of superior ceramic material.
本発明の支持台は上記のように分割体で構成さ
れているので、取扱いが大変容易であり、しか
も、上部分割体と、少なくとも上部分割体に接す
る分割体（下部分割体あるいは中間分割体）の材
質を違えることによつて耐久性のすぐれた支持台
を得ることができる。 Since the support base of the present invention is composed of divided bodies as described above, it is very easy to handle, and it also includes an upper divided body and a divided body (lower divided body or intermediate divided body) that is in contact with at least the upper divided body. By using different materials, it is possible to obtain a support stand with excellent durability.
上部分割体とは一番上の分割体をいい、下部分
割体とは一番下の分割体をいう。中間分割体と
は、上部分割体と下部分割体の間にある分割体を
いう。例えば支持台が４個の分割体で構成されて
いる場合は、間の２個の分割体を中間分割体とい
う。 The upper divided body refers to the uppermost divided body, and the lower divided body refers to the lowermost divided body. The intermediate divided body is a divided body located between the upper divided body and the lower divided body. For example, when the support base is composed of four divided bodies, the two divided bodies in between are called intermediate divided bodies.
上部分割体には高強度高耐熱性（すなわち熱間
強度が大きい）でかつ熱衝撃抵抗性のすぐれたセ
ラミツク材料を使用する。熱間強度が大きく熱衝
撃抵抗性のすぐれたセラミツク材料としては、例
えば高アルミナ質、ムライト質耐火物等がある。 A ceramic material with high strength, high heat resistance (that is, high hot strength), and excellent thermal shock resistance is used for the upper division body. Ceramic materials with high hot strength and excellent thermal shock resistance include, for example, high alumina refractories and mullite refractories.
そして、少なくとも上部分割体に接する分割体
（下部分割体あるいは中間分割体）に断熱保温性
にすぐれたセラミツク材料を使用すると、熱放散
を防ぐとともに上部分割体の均熱化及び冷却速度
の補正（急速冷却の抑制）を図ることができる。
断熱保温性にすぐれたセラミツク材料としては、
例えばアルミナ断熱耐火物等がある。このように
上部分割体に接する分割体（下部分割体あるいは
中間分割体）に断熱保温性にすぐれた材料を使用
すると、上部分割体の熱衝撃抵抗性を増大させる
ことができる。また、上部分割体以外の分割体を
全て断熱保温性にすぐれた材料で形成してもよ
い。If a ceramic material with excellent heat insulation properties is used for at least the divided body (lower divided body or intermediate divided body) that is in contact with the upper divided body, heat dissipation can be prevented, and the temperature of the upper divided body can be equalized and the cooling rate can be corrected ( (suppression of rapid cooling).
As a ceramic material with excellent heat insulation and heat retention,
For example, there are alumina heat-insulating refractories. By using a material with excellent heat insulation and heat retention for the divided body (lower divided body or intermediate divided body) in contact with the upper divided body in this way, the thermal shock resistance of the upper divided body can be increased. Further, all the divided bodies other than the upper divided body may be formed of a material having excellent heat insulation and heat retention properties.
以下、図面を参照して本発明の好適な実施例に
ついて説明する。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
第３図及び第４図は２個の分割体で構成した本
発明の支持台の一例を示すもので、第３図は第４
図に示す支持台の平面図である。第３図に示す支
持台は下半分が省略されている。 FIGS. 3 and 4 show an example of the support stand of the present invention that is composed of two divided bodies, and FIG.
FIG. 3 is a plan view of the support shown in the figure. The lower half of the support stand shown in FIG. 3 is omitted.
上部分割体１０は高強度高耐熱でかつ熱衝撃抵
抗性の高いセラミツク材料で形成されており、下
部分割体１１は断熱保温性にすぐれたセラミツク
材料で形成されている。 The upper divided body 10 is made of a ceramic material that has high strength, high heat resistance, and high thermal shock resistance, and the lower divided body 11 is made of a ceramic material that has excellent heat insulation and heat retention properties.
上部分割体１０及び下部分割体１１の下方には
それぞれハンドリング用の切欠き１０ａ、１１ａ
が形成されている。切欠き１０ａ、１１ａによつ
て本発明の支持台の取扱いが非常に容易になる。
下部分割体１１の上面にはダボ１１ｂが形成され
ている。ダボ１１ｂに対応して上部分割体１０の
底面には凹部１０ｃが形成されている。ダボ１１
ｂの側面外周には〓間１２ができる。 Handling notches 10a and 11a are provided below the upper divided body 10 and the lower divided body 11, respectively.
is formed. The cutouts 10a, 11a greatly facilitate handling of the support base of the present invention.
A dowel 11b is formed on the upper surface of the lower divided body 11. A recess 10c is formed in the bottom surface of the upper divided body 10 corresponding to the dowel 11b. Dowel 11
A gap 12 is formed on the outer periphery of the side surface of b.
第５図及び第６図は２個の分割体で構成した本
発明の支持台の他の例を示すもので、第５図は第
６図に示す支持台の平面図である。 FIGS. 5 and 6 show other examples of the support stand of the present invention constituted by two divided bodies, and FIG. 5 is a plan view of the support stand shown in FIG. 6.
上部分割体１３は高強度高耐熱でかつ熱衝撃抵
抗性の高いセラミツク材料で形成されており、下
部分割体１４は断熱保温性にすぐれたセラミツク
材料で形成されている。 The upper divided body 13 is made of a ceramic material that has high strength, high heat resistance, and high thermal shock resistance, and the lower divided body 14 is made of a ceramic material that has excellent heat insulation and heat retention properties.
この例では、下部分割体１４の上面にダボが形
成されていない。上部分割体１３及び下部分割体
１４の下方にはそれぞれハンドリング用の切欠き
１３ａ、１４ａが形成されている。 In this example, no dowels are formed on the upper surface of the lower divided body 14. Handling notches 13a and 14a are formed below the upper divided body 13 and the lower divided body 14, respectively.
第７図及び第８図は２個の分割体で構成した本
発明の支持台のさらに他の例を示すものである。
上部分割体１５、下部分割体１６、切欠き１５
ａ、切欠き１６ａ、凹部１５ｃ、ダボ１６ｂ、〓
間１７は第３図及び第４図に示した支持台と同様
である。 FIGS. 7 and 8 show still another example of the support stand of the present invention, which is composed of two divided bodies.
Upper divided body 15, lower divided body 16, notch 15
a, notch 16a, recess 15c, dowel 16b,
The space 17 is similar to the support shown in FIGS. 3 and 4.
第９図及び第１０図は上下方向に３個の分割体
を重ねて構成した本発明の支持台の一例を示すも
のである。 FIGS. 9 and 10 show an example of the support stand of the present invention, which is constructed by stacking three divided bodies in the vertical direction.
上部分割体１８は高強度高耐熱でかつ熱衝撃抵
抗性の高いセラミツク材料で形成されている。中
間分割体１９と下部分割体２０はともに断熱保温
性にすぐれたセラミツク材料で形成されており、
それぞれの下方にはハンドリング用の切欠き１９
ａ、２０ａが形成されている。この実施例では、
中間分割体１９は境界２７でさらに２分割されて
いる。また、中間分割体１９、下部分割体２０の
上面にはダボ１９ｂ、２０ｂがそれぞれ形成され
ている。ダボ１９ｂ、２０ｂに対応して上部分割
体１８、中間分割体１９のそれぞれの底面には凹
部１８ｃ、１９ｃが形成されている。ダボ１９
ｂ、２０ｂのそれぞれの側面外周には〓間２１、
２２ができる。 The upper divided body 18 is made of a ceramic material having high strength, high heat resistance, and high thermal shock resistance. Both the intermediate divided body 19 and the lower divided body 20 are made of ceramic material with excellent heat insulation and heat retention properties.
There is a notch 19 at the bottom of each for handling.
a, 20a are formed. In this example,
The intermediate divided body 19 is further divided into two parts at a boundary 27. Further, dowels 19b and 20b are formed on the upper surfaces of the intermediate divided body 19 and the lower divided body 20, respectively. Recesses 18c and 19c are formed in the bottom surfaces of the upper divided body 18 and the intermediate divided body 19, respectively, corresponding to the dowels 19b and 20b. Dowel 19
On the outer periphery of each side of b, 20b, there is a space 21,
I can do 22.
第１１図及び第１２図は３個の分割体で構成し
た本発明の支持台の他の例を示すものである。 FIG. 11 and FIG. 12 show another example of the support stand of the present invention constructed from three divided bodies.
第１１図及び第１２図は３個の分割体で構成し
た本発明の支持台の他の例を示すものである。 FIG. 11 and FIG. 12 show another example of the support stand of the present invention constructed from three divided bodies.
第１１図及び第１２図に示す実施例にはハンド
リング用の切欠きは形成されていない。 In the embodiment shown in FIGS. 11 and 12, no cutout for handling is formed.
上部分割体２３は高強度高耐熱でかつ熱衝撃抵
抗性の高いセラミツク材料で形成されている。中
間分割体２４と下部分割体２５はともに断熱保温
性にすぐれたセラミツク材料で形成されており、
それぞれの上面にはダボ２４ｂ、２５ｂが形成さ
れている。 The upper divided body 23 is made of a ceramic material having high strength, high heat resistance, and high thermal shock resistance. Both the intermediate divided body 24 and the lower divided body 25 are made of ceramic material with excellent heat insulation and heat retention properties.
Dowels 24b and 25b are formed on each upper surface.
ダボ２４ｂ、２５ｂに対応して上部分割体２
３、中間分割体２４のそれぞれの底面には凹部２
３ｃ、２４ｃが形成されている。ダボ２４ｂ、２
５ｂの上面及び側面の外周には〓間２８、２９が
できる。 The upper divided body 2 corresponds to the dowels 24b and 25b.
3. A recess 2 is provided on the bottom surface of each intermediate divided body 24.
3c and 24c are formed. Dowel 24b, 2
There are gaps 28 and 29 on the outer periphery of the top and side surfaces of 5b.
第１図は従来の支持台を使用した熱間静水圧成
形炉を示す断面図、第２図は従来の支持台を示す
断面図、第３図は２個の分割体で構成した本発明
の支持台の一例を示す部分図、第４図は第３図に
示す支持台の断面図、第５図は２個の分割体で構
成した本発明の支持台の他の例を示す部分図、第
６図は第５図に示す支持台の断面図、第７図は２
個の分割体で構成した本発明の支持台のさらに他
の例を示す部分図、第８図は第７図に示す支持台
の断面図、第９図は３個の分割体で構成した本発
明の支持台の一例を示す部分図、第１０図は第９
図に示す支持台の断面図、第１１図は３個の分割
体で構成した本発明の支持台の他の例を示す部分
図、第１２図は第１１図に示す支持台の断面図で
ある。
１０…上部分割体、１１…下部分割体、１２…
〓間、１３…上部分割体、１４…下部分割体、１
５…上部分割体、１６…下部分割体、１７…〓
間、１８…上部分割体、１９…中間分割体、２０
…下部分割体、２１…〓間、２２…〓間、２３…
上部分割体、２４…中間分割体、２５…下部分割
体、２８…〓間、２９…〓間。
Fig. 1 is a cross-sectional view showing a hot isostatic pressing furnace using a conventional support stand, Fig. 2 is a cross-sectional view showing a conventional support stand, and Fig. 3 is a cross-sectional view showing a hot isostatic pressing furnace using a conventional support stand. 4 is a sectional view of the support stand shown in FIG. 3; FIG. 5 is a partial view showing another example of the support stand of the present invention composed of two divided bodies; Figure 6 is a sectional view of the support stand shown in Figure 5, and Figure 7 is a cross-sectional view of the support stand shown in Figure 5.
FIG. 8 is a sectional view of the support stand shown in FIG. 7, and FIG. 9 is a partial view showing still another example of the support stand of the present invention constituted by three divided bodies. A partial view showing an example of the support stand of the invention, FIG.
11 is a partial view showing another example of the support stand of the present invention composed of three divided bodies, and FIG. 12 is a cross-sectional view of the support stand shown in FIG. 11. be. 10... Upper divided body, 11... Lower divided body, 12...
〓 between, 13... upper divided body, 14... lower divided body, 1
5...Upper divided body, 16...Lower divided body, 17...〓
Between, 18... Upper division body, 19... Intermediate division body, 20
...lower divided body, 21...〓between, 22...〓between, 23...
Upper divided body, 24... intermediate divided body, 25... lower divided body, 28... between, 29... between.
Claims (1)
において、支持台を上下方向に２個以上の部分に
分割し、上部分割体を高強度高耐熱でかつ熱衝撃
抵抗性の高いセラミツク材料で形成し、少なくと
も上部分割体に接する分割体を断熱保温性にすぐ
れたセラミツク材料で形成したことを特徴とする
熱間静水圧成形炉の支持台。1. In a support platform on which a processed product is placed in a hot isostatic pressing furnace, the support platform is divided into two or more parts in the vertical direction, and the upper divided body is made of a ceramic material with high strength, high heat resistance, and high thermal shock resistance. 1. A support stand for a hot isostatic pressing furnace, characterized in that at least the divided body in contact with the upper divided body is made of a ceramic material having excellent heat insulation and heat retention properties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58153164A JPS6048481A (en) | 1983-08-24 | 1983-08-24 | Support base for hot hydrostatic pressure molding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58153164A JPS6048481A (en) | 1983-08-24 | 1983-08-24 | Support base for hot hydrostatic pressure molding furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6048481A JPS6048481A (en) | 1985-03-16 |
| JPH0359961B2 true JPH0359961B2 (en) | 1991-09-12 |
Family
ID=15556440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58153164A Granted JPS6048481A (en) | 1983-08-24 | 1983-08-24 | Support base for hot hydrostatic pressure molding furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6048481A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201105957D0 (en) * | 2011-04-08 | 2011-05-18 | Element Six Ltd | Containment element |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5128044B2 (en) * | 1971-08-09 | 1976-08-17 | ||
| JPS5612239B2 (en) * | 1974-08-19 | 1981-03-19 | ||
| JPS5653187A (en) * | 1979-10-05 | 1981-05-12 | Chiyoda Kagaku Kenkyusho:Kk | Solid fuel |
-
1983
- 1983-08-24 JP JP58153164A patent/JPS6048481A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6048481A (en) | 1985-03-16 |
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