JP2583607B2 - Hot isostatic pressing apparatus and processing method - Google Patents
Hot isostatic pressing apparatus and processing methodInfo
- Publication number
- JP2583607B2 JP2583607B2 JP1147675A JP14767589A JP2583607B2 JP 2583607 B2 JP2583607 B2 JP 2583607B2 JP 1147675 A JP1147675 A JP 1147675A JP 14767589 A JP14767589 A JP 14767589A JP 2583607 B2 JP2583607 B2 JP 2583607B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- processing
- space
- processing chamber
- workpiece
- 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 - Fee Related
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
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、熱間静水圧下加工装置および加工方法に関
し、耐熱性金属材料、セラミックス等の難加工性の材料
を高温静水圧下で加工するのに利用される。Description: TECHNICAL FIELD The present invention relates to a hot isostatic pressing apparatus and a processing method, and processes a difficult-to-process material such as a heat-resistant metal material and ceramics under high-temperature hydrostatic pressure. Used to do.
（従来の技術） Ni基合金など耐熱性金属材料については、一般的に加
工性に乏しく、従って、鍛造不可能な高強度系材料につ
いては、従来、粉末冶金法で得られる微細結晶粒超塑性
を利用して加工することが行われている。(Prior art) Heat-resistant metal materials such as Ni-base alloys generally have poor workability. Therefore, for high-strength materials that cannot be forged, fine-grain superplastic materials conventionally obtained by powder metallurgy are used. Processing has been carried out using the.
また、加工性の難度の点では、モリブデン、タングス
テンなど高融点金属材料あるいは金属間化合物について
も同様であって、さらに、セラミックスについては、そ
れら以上に延性に乏しく加工困難であるが、これについ
ても近年、超塑性現象の利用により加工が行われるよう
になってきている。In terms of workability, the same applies to refractory metal materials such as molybdenum and tungsten or intermetallic compounds.Furthermore, ceramics have poorer ductility and are harder to work. In recent years, processing has been performed by utilizing the superplasticity phenomenon.
（発明が解決しようとする課題） しかしながら、超塑性加工においては、ボイドの発生
に伴う加工限界が大きな問題である。(Problems to be Solved by the Invention) However, in the superplastic working, there is a large problem of a working limit accompanying the generation of voids.
また、低ひずみ速度での加工を必要とすることから、
生産性に劣ることも問題のひとつである。In addition, since processing at a low strain rate is required,
Poor productivity is also a problem.
更に、これまでの超塑性加工装置は、機械プレスを流
用して構成されていたため、被加工品の雰囲気制御、す
なわち、不活性雰囲気の確保が困難であり、又、加熱の
均質性の確保が面倒であった。Furthermore, since conventional superplastic processing apparatuses have been configured using a mechanical press, it is difficult to control the atmosphere of the workpiece, that is, to secure an inert atmosphere, and to ensure uniform heating. It was troublesome.
本発明は、被加工品の加工を、高温静水圧下で行うこ
とにより、ボイドの発生を抑制して加工限界を引きあげ
得る熱間静水圧下加工装置および加工方法を提供するこ
とが第１の目的である。The first object of the present invention is to provide a hot isostatic pressing apparatus and a processing method capable of suppressing generation of voids and raising a processing limit by performing processing of a workpiece under high-temperature hydrostatic pressure. Is the purpose.
更に、本発明は、加工速度を早め得ることで生産性を
向上し、しかも、雰囲気制御が容易であるとともに均質
加熱を可能で、大形化に耐え得る熱間静水圧加工装置お
よび加工方法を提供することが第２の目的である。Further, the present invention provides a hot isostatic processing apparatus and a processing method which can increase productivity by increasing the processing speed, can easily control the atmosphere, can perform uniform heating, and can withstand large size. Provision is a second purpose.
また、本発明は、高温静水圧環境を利用しての新たな
加工技術を提供することを第３の目的とする。A third object of the present invention is to provide a new processing technique utilizing a high-temperature hydrostatic pressure environment.
（課題を解決するための手段） 本発明は、容器軸方向の両端に開口部1A,1Bを有する
高圧容器１と前記開口部1A,1Bをそれぞれ開閉自在に閉
塞する上・下の蓋部材2,3とで内部に高圧室４が画成さ
れ、該高圧室４に、倒立コップ形状の断熱層９と該断熱
層９の内側に配設されている加熱要素10とからなる加熱
装置８が内蔵されて、該加熱装置８の内側で被加工物16
を熱間静水圧下で加工する処理室11を備えた熱間静水圧
下加工装置において、前述の目的を達成するために、次
の技術的手段を講じている。(Means for Solving the Problems) The present invention provides a high-pressure container 1 having openings 1A and 1B at both ends in the container axial direction, and an upper and lower lid member 2 for closing the openings 1A and 1B so that they can be opened and closed, respectively. , 3 define a high-pressure chamber 4 in which a heating device 8 comprising an inverted cup-shaped heat insulating layer 9 and a heating element 10 disposed inside the heat insulating layer 9 is provided. The work piece 16 is built inside the heating device 8.
In a hot isostatic pressing apparatus provided with a processing chamber 11 for processing under a hot isostatic pressure, the following technical measures are taken in order to achieve the above object.
すなわち、本発明は、前記処理室11内に、被加工物16
を介して処理室11空間と隔絶した空間15を形成する加工
用型14を配設するとともに、前記隔絶された空間15を、
高圧容器１外に連通する通路19を下蓋部材３に設け、該
通路19と前記処理室11とを連通する管路43を設け、更
に、前記加工用空間15と処理室11空間との圧力が連通バ
ランスされかつ両者15,11の連通を断にして差圧力を生
起する差圧発生装置23を設けたことを特徴とするもので
ある。That is, the present invention provides the processing chamber 11
A processing mold 14 that forms a space 15 isolated from the processing chamber 11 space is disposed, and the isolated space 15 is
A passage 19 communicating with the outside of the high-pressure vessel 1 is provided in the lower lid member 3, a conduit 43 communicating the passage 19 with the processing chamber 11 is provided, and a pressure between the processing space 15 and the processing chamber 11 space is further increased. Are provided with a differential pressure generating device 23 which is balanced in communication and generates a differential pressure by cutting off the communication between the two 15, 15.
また、本発明は、容器軸方向の両端に開口部1A,1Bを
有する高圧容器１と前記開口部1A,1Bをそれぞれ開閉自
在に閉塞する上・下の蓋部材2,3とで内部に高圧室４が
画成され、該高圧室４に、倒立コップ形状の断熱層９と
該断熱層９の内側に配設されている加熱要素10とからな
る加熱装置８が内蔵されて、該加熱装置８の内側で被加
工物16を熱間静水圧下で加工する処理室11を備え、更
に、前記処理室11内に、被加工物16を介して処理室11空
間と隔絶した空間15を形成する加工用型14を配設すると
ともに、前記隔絶された空間15を、高圧容器１外に連通
する通路19を下蓋部材３に設け、該通路19と前記処理室
11とを連通する管路43を設けた熱間静水圧下加工装置を
用いて前記被加工物16を高温静水圧下で加工する方法で
あって、前記加工用空間15と処理室11空間との圧力が連
通バランスした状態にしてから、両者15,11の連通を断
にして両者15,11間に差圧力を生じさせることにより被
加工物16を加工用型14にて高温静水圧下で加工すること
を特徴とするものであり、この場合に、差圧力の発生
が、加工用空間15の圧力を減圧調整でなされることを特
徴とするものである。The present invention also provides a high-pressure container 1 having openings 1A and 1B at both ends in the container axial direction, and upper and lower lid members 2 and 3 for opening and closing the openings 1A and 1B, respectively. A chamber 4 is defined, and a heating device 8 including an inverted cup-shaped heat insulating layer 9 and a heating element 10 disposed inside the heat insulating layer 9 is built in the high-pressure chamber 4. A processing chamber 11 for processing a workpiece 16 under hot isostatic pressure inside the processing chamber 8, and a space 15 separated from the processing chamber 11 space via the workpiece 16 is formed in the processing chamber 11. And a passage 19 for communicating the isolated space 15 to the outside of the high-pressure vessel 1 is provided in the lower lid member 3, and the passage 19 and the processing chamber
A method of processing the workpiece 16 under high-temperature hydrostatic pressure using a hot isostatic pressing apparatus provided with a conduit 43 communicating with the processing space 11, wherein the processing space 15 and the processing chamber 11 space. After the pressure is in a communication balanced state, the communication between the two parts 15 and 11 is cut off to generate a pressure difference between the two parts 15 and 11, and the workpiece 16 is processed under high-temperature hydrostatic pressure with the processing mold 14. In this case, the processing is performed, and in this case, the generation of the differential pressure is performed by reducing the pressure in the processing space 15 by reducing the pressure.
（実施例と作用） 以下、図面を参照して本発明の実施例とその作用を説
明する。(Embodiments and Functions) Hereinafter, embodiments of the present invention and the functions thereof will be described with reference to the drawings.
第１図において、１は高圧容器で、円筒形に形成され
ていて容器軸方向の両端が上・下開口部1A,1Bとされて
いる。２は上蓋部材であり、前記上開口部1Aを開閉自在
に閉塞する。また、３は下蓋部材で前記下開口部1Bを開
閉自在に閉塞するものであり、ここに、高圧容器１と上
・下蓋部材2,3とで内部に高圧室４を画成している。In FIG. 1, reference numeral 1 denotes a high-pressure vessel, which is formed in a cylindrical shape and has upper and lower openings 1A and 1B at both ends in the vessel axial direction. Reference numeral 2 denotes an upper lid member, which closes the upper opening 1A so that it can be opened and closed. Reference numeral 3 denotes a lower lid member for closing the lower opening 1B so as to be openable and closable. Here, a high-pressure chamber 4 is defined by the high-pressure container 1 and the upper and lower lid members 2, 3. I have.
この第１実施例では、上開口部1Aに嵌合される上蓋部
材２にはシール材５を有し、下蓋部材３は下開口部1Bに
嵌合されてシール材６で密封可能なリング形状の下上蓋
3Aと該下上蓋3Aに嵌合されてシール材７で密封可能な下
下蓋3Bよりなっている。In the first embodiment, the upper lid member 2 fitted in the upper opening 1A has a sealing material 5, and the lower lid member 3 is fitted in the lower opening 1B and can be sealed by the sealing material 6. Lower lid of shape
3A and a lower and lower lid 3B fitted to the lower and upper lid 3A and capable of being sealed with a sealing material 7.
なお、高圧容器１に嵌合された上・下蓋部材2,3には
図示省略したプレスフレームが係脱可能とされていて容
器軸方向に作用するプレス軸力を担持可能としている。The upper and lower lid members 2 and 3 fitted to the high-pressure container 1 can be disengaged from a press frame (not shown) so as to be able to carry a press axial force acting in the container axial direction.
８は加熱装置（加熱炉）であり、倒立コップ形状の断
熱層９と該断熱層９の内側に配置されている加熱要素10
とからなり、高圧室４に内蔵されていてその内部で被加
工物16を熱間静水圧で加工する処理室11を備えている。
なお、断熱層９は支持脚12によって上下蓋3Aに支持され
ており、加熱要素10は通電部材13を介して下上蓋3Aに支
持されている。Reference numeral 8 denotes a heating device (heating furnace), which is an inverted cup-shaped heat insulating layer 9 and a heating element 10 arranged inside the heat insulating layer 9.
The processing chamber 11 is built in the high-pressure chamber 4 and processes the workpiece 16 by hot isostatic pressure therein.
Note that the heat insulating layer 9 is supported on the upper and lower lids 3A by the support legs 12, and the heating element 10 is supported on the lower and upper lids 3A via the conducting members 13.
また、断熱層９はガス不透性の内外金属筒9A,9B間
に、繊維状の断熱材9Cを充填して構成されている。The heat insulating layer 9 is formed by filling a fibrous heat insulating material 9C between the gas-impermeable inner and outer metal cylinders 9A and 9B.
14は加圧用型（金型）であり、前記処理室11に配設さ
れており、その上部に実施例では凹部が形成されてい
て、その凹部を塞ぐように載置されている被加工物16に
よって処理室11の空間と隔絶される加工用空間15を形成
している。なお、空間15の気密化は、図示省略している
が、メタルリングを介して締めつけることで行なうこと
ができる。Reference numeral 14 denotes a pressurizing mold (mold), which is disposed in the processing chamber 11 and has a concave portion formed thereon in the embodiment, and a workpiece to be placed so as to cover the concave portion. The processing space 15 is separated from the processing chamber 11 by the space 16. The airtightness of the space 15 can be achieved by tightening via a metal ring, although not shown.
加工用型14は管路17を有する脚部18を有していて下下
蓋3Bに支持されており、該下下蓋3Bに形成した通路19に
よって容器外と空間15を連通している。The processing die 14 has a leg 18 having a conduit 17 and is supported by the lower lower lid 3B, and communicates the outside of the container with the space 15 by a passage 19 formed in the lower lower lid 3B.
更に、20はベースヒータを示しており、下下蓋3Bに載
置している筒形の断熱材21に、通電部22を介して支持さ
れている。Further, reference numeral 20 denotes a base heater, which is supported by a tubular heat insulating material 21 placed on the lower and lower lid 3B via a current supply portion 22.
23は圧媒給排装置（差圧力発生装置）であり、本実施
例では上蓋部材２に形成された通路24に、管路25を介し
てガス集合装置26が接続されており、管路25にはコンプ
レッサ27、開閉弁28および圧力計29と安全弁30を備えて
おり、更に、回収管路31を有し、該回収管路31には開閉
弁32と減圧弁（絞り弁）33を有している。Reference numeral 23 denotes a pressure medium supply / discharge device (differential pressure generating device). In this embodiment, a gas collecting device 26 is connected to a passage 24 formed in the upper lid member 2 via a conduit 25. Is provided with a compressor 27, an on-off valve 28, a pressure gauge 29 and a safety valve 30, and further has a recovery line 31. The recovery line 31 has an on-off valve 32 and a pressure reducing valve (throttle valve) 33. doing.
更に、34は真空引管路であり、真空ポンプ35を備えて
おり、36,37はその開閉弁を示している。なお、38は大
気解放用の開閉弁を示している。39は連通管路であり、
通路19と管路25とを連通することで、隔絶された加工用
空間15と処理室11とを連通するとともにガス回収を兼用
しており、該連通管路39には両者15,11を開閉自在にす
る開閉弁40と、圧力計41および安全弁42を有している。
なお、43は開閉弁44を有する真空引き用管路で、加工用
空間15と処理室11とを連通している（連通の作用は管路
39と同じである）。Reference numeral 34 denotes a vacuum line, which is provided with a vacuum pump 35, and reference numerals 36 and 37 denote on-off valves thereof. Reference numeral 38 denotes an open / close valve for releasing to the atmosphere. 39 is a communication conduit,
By communicating the passage 19 with the conduit 25, the isolated processing space 15 communicates with the processing chamber 11 and also serves as gas recovery, and the communication conduit 39 opens and closes both 15, 11. It has an opening / closing valve 40 that can be freely adjusted, a pressure gauge 41 and a safety valve 42.
Reference numeral 43 denotes a vacuum evacuation pipeline having an on-off valve 44, which communicates the processing space 15 with the processing chamber 11 (the operation of the communication is via the pipeline.
Same as 39).
なお、例えば処理温度が1000℃〜1100℃程度であるNi
基超合金を被加工物16とした場合には、断熱層９として
はインコネル、ステンレス鋼などが用いられ、加熱要素
10およびベースヒータ20としてはFe−Cr−Al等が用いら
れ、又、金型14としてはTZMのような特殊合金が用いら
れ、更に、断熱材21としてはセラミックス系断熱材料例
えば、Al2O3、ZrO2或いはそれらの複合材料を用いるこ
とが好適である。In addition, for example, Ni whose processing temperature is about 1000 ° C. to 1100 ° C.
When the base superalloy is used as the work piece 16, the heat insulating layer 9 is made of Inconel, stainless steel, or the like.
Fe--Cr--Al or the like is used as 10 and the base heater 20, a special alloy such as TZM is used as the mold 14, and a ceramic heat insulating material such as Al 2 O 3 , it is preferable to use ZrO 2 or a composite material thereof.
次に、前述した実施例の作用を概略説明する。 Next, the operation of the above-described embodiment will be schematically described.
先ず、被加工品16を加工用金型14上に載置保持する。 First, the workpiece 16 is placed and held on the processing die 14.
この場合、被加工品16と加工用金型14間との気密性確
保には、前述したようにメタルリングを介して締めつけ
ることで行うことができる。In this case, airtightness between the workpiece 16 and the processing mold 14 can be ensured by tightening via the metal ring as described above.
しかるのち、加工用金型内空間15の処理室11の空間と
を連通する管路43の弁44を開として、真空ポンプ35を運
転して、管路43ならびに下下蓋3Bの通路19を通して加工
用金型内空間15の、又管路25、上蓋部材２の通路24を通
して処理室11における空間の脱気を行い、脱気完了後コ
ンプレッサ27を駆動して、ガス集合装置26より両空間部
への送気を行う。Thereafter, the valve 44 of the pipe 43 communicating with the space of the processing chamber 11 of the processing mold inner space 15 is opened, the vacuum pump 35 is operated, and the pipe 43 and the passage 19 of the lower cover 3B are passed. The space in the processing chamber 11 is degassed through the processing mold inner space 15, the conduit 25, and the passage 24 of the upper lid member 2, and after the deaeration is completed, the compressor 27 is driven. Supply air to the section.
所定圧までの送気完了後、弁28、40を閉、弁44を開と
して、加熱要素10および20に電力供給して処理室11の温
度を上昇せしめ、所定の温度ならびに圧力へ到達後、弁
44を閉とし弁40、32を開として、減圧弁33から加工用金
型内空間15の圧力を解放低下せしめ、以上の操作によっ
て被加工品16は、処理室11側からのガスによる押圧を受
けて且つ高温静水圧下に、加工用金型空間15内へと変形
加工を受けることになる。After the air supply to the predetermined pressure is completed, the valves 28 and 40 are closed and the valve 44 is opened to supply power to the heating elements 10 and 20 to increase the temperature of the processing chamber 11, and after reaching the predetermined temperature and pressure, valve
44 is closed and the valves 40 and 32 are opened to release and reduce the pressure in the processing mold inner space 15 from the pressure reducing valve 33, and the workpiece 16 is pressed by the gas from the processing chamber 11 side by the above operation. Then, under the high-temperature hydrostatic pressure, the workpiece is subjected to deformation processing into the processing mold space 15.
なお、この場合、変形を所定の速度下に進めることが
好ましい場合には、例えば、管路乃至通路17、19内を通
して、下下蓋3Bに置かれたストローク検出器45により被
加工品16の変形速度を検出し、制御器46でもって、減圧
弁33の開度をコントロールして変形速度制御することも
可能である。In this case, in the case where it is preferable to advance the deformation at a predetermined speed, for example, the stroke detector 45 placed on the lower cover 3B passes through the pipes or passages 17 and 19, and the workpiece 16 is deformed. The deformation speed can be controlled by detecting the deformation speed and controlling the opening of the pressure reducing valve 33 by the controller 46.
なお、変形完了後は、弁44を開として、再度加工用金
型空間15と処理室11の空間との圧力バランスをとり、処
理室温度が所定温度まで低下後、減圧して、下下蓋3Bを
下降、被加工品の取外しを行う。After the deformation is completed, the valve 44 is opened, and the pressure of the processing mold space 15 and the space of the processing chamber 11 is again balanced. After the temperature of the processing chamber is reduced to a predetermined temperature, the pressure is reduced. 3B is lowered, and the workpiece is removed.
なお、被加工品の加工のための操作として、加工用金
型空間内の圧力の圧減操作にもとづく実施例について記
載したが、処理室空間側の圧力を上昇せしめて（例え
ば、蓄圧器から徐々に加圧ガス供給を行わしめて）加工
を行うことも勿論可能である。従って、この場合は、圧
媒給排装置23と蓄圧器を有する差圧力発生装置とは、装
置23に蓄圧器を組込む場合と、両装置を個別に設ける場
合がある。In addition, as the operation for processing the workpiece, the embodiment based on the pressure reduction operation of the pressure in the processing mold space has been described, but the pressure on the processing chamber space side is increased (for example, from the pressure accumulator). Of course, it is also possible to perform processing (by gradually supplying a pressurized gas). Accordingly, in this case, the pressure medium supply / discharge device 23 and the differential pressure generating device having a pressure accumulator may be either a case where a pressure accumulator is incorporated in the device 23 or a case where both devices are separately provided.
いずれにしても、本発明は、加工用金型空間と処理室
空間との圧力が連通バランスした状態から次いで両空間
の連通を断にして、差圧力を生ぜしめて、高温静水圧下
で加工すればよい。In any case, according to the present invention, when the pressure between the processing mold space and the processing chamber space is in a communication-balanced state, the communication between the two spaces is then cut off, a differential pressure is generated, and the processing is performed under high-temperature hydrostatic pressure. I just need.
なお、以上の装置構成に於て、応用方法としては、前
記の方法による例えば板製品の加工以外に、加工接合す
べき２種類の材質の板材を端面部で溶接してのち（例え
ばEBWを使用して、板材16A,16Bの空隙は真空にして溶接
する（第２図参照））、本発明による方法を適用して加
工と同時に接合をも行うことが可能である。その際、接
合については、加工前に熱間静水圧下の接合を行ってお
いてから加工に移行してもよく、或は加工後熱間静水圧
下に保持して接合を行ってもよい。また、第３図に示す
如く上記溶接に加えて板材16A,16Bによるカプセルに粉
末16Cを封入することも勿論可能である。In the above-described apparatus configuration, as an application method, in addition to the above-described method of processing a plate product, for example, after welding two types of plate materials to be processed and joined at an end face (for example, using EBW). Then, the gaps between the plate members 16A and 16B are welded in a vacuum (see FIG. 2). By applying the method according to the present invention, it is possible to perform the joining simultaneously with the processing. At that time, regarding the joining, the joining may be performed under hot isostatic pressure after the joining under hot isostatic pressure before working, or the joining may be performed while holding under hot isostatic pressure after working. . Further, as shown in FIG. 3, it is of course possible to enclose the powder 16C in a capsule made of plate members 16A and 16B in addition to the above welding.
さらには、板材と板材との間に粉末層を介在させて複
合材料を製造することも、又加工用金型そのものに被加
工品を内張りとして接合することなども可能である。な
お、第２、３図において、16Dは全周溶接部を示してい
る。Furthermore, a composite material can be manufactured by interposing a powder layer between plate materials, or a workpiece can be bonded to a processing mold itself with a workpiece lined. In FIGS. 2 and 3, reference numeral 16D denotes the entire circumference welded portion.
なお、第１図では断熱層９を下上蓋3Aに支持している
が、該断熱層９は、上蓋部材２に懸垂して取付けてもよ
い。In FIG. 1, the heat insulating layer 9 is supported by the lower upper lid 3A, but the heat insulating layer 9 may be suspended from the upper lid member 2 and attached.
（発明の効果） 本発明は以上の通りであり、本発明によれば次の利点
がある。(Effects of the Invention) The present invention is as described above, and the present invention has the following advantages.
熱間静水圧下での加工を可能として、静水圧の作用
による延性増大に基づき難加工性材料の塑性加工範囲を
拡大するのみならず、Ni基合金、セラミックスなど超塑
性現象を発現する材料に対して、ボイドの発生を抑制し
てその加工限界を大幅に改善し、或いは、加工速度を早
め生産性を向上できる。Enables processing under hot hydrostatic pressure, not only expanding the plastic working range of difficult-to-process materials based on the increase in ductility due to the action of hydrostatic pressure, but also for materials that exhibit superplastic phenomena such as Ni-based alloys and ceramics On the other hand, the generation of voids can be suppressed to greatly improve the processing limit, or the processing speed can be increased to improve productivity.
その際、加工に要する力としては、熱間静水圧環境
を発生するのに利用するガスの圧力を利用することから
構成単純であり、又温度の均質性の確保の点でも全く問
題がない。At this time, the force required for the processing is simple because the pressure of the gas used to generate the hot hydrostatic pressure environment is used, and there is no problem at all in terms of securing the uniformity of the temperature.
更に、本発明の熱間静水圧下加工装置及び加工方法
は、同時に被処理品の欠陥除去、緻密化、接合にも適用
できるのは勿論のこと、それらの加工と熱間静水圧下に
よる鍛造加工との複合化により、すでに述べた加工限界
のより一層の改善を図り、或いは従来にない形の複合材
料の製造を可能とする。Furthermore, the apparatus and method for hot isostatic pressing according to the present invention can be simultaneously applied to the removal of defects, densification, and joining of workpieces, as well as forging by hot isostatic pressing. Combination with processing can further improve the processing limits already mentioned, or make it possible to produce unconventional forms of composite materials.
従って、本発明は、今後増々増大する傾向にある難加
工性を有する先端材料分野の加工に対して極めて有益な
技術を提供できる。Therefore, the present invention can provide an extremely useful technique for processing in the field of advanced materials having difficult-to-work properties, which tends to increase in the future.
図面は本発明の実施例を示しており、第１図は立面断面
図、第２図、第３図は被加工物の各断面図である。 １……高圧容器、1A,1B…開口部、２……上蓋部材、３
……下蓋部材、４……高圧室、８……加熱装置、９……
断熱層、10……加熱要素、14……加工用型、15……空
間、23……差圧力発生装置。The drawings show an embodiment of the present invention. FIG. 1 is an elevational sectional view, and FIGS. 2 and 3 are sectional views of a workpiece. 1 ... high pressure vessel, 1A, 1B ... opening, 2 ... top lid member, 3
... lower cover member, 4 ... high pressure chamber, 8 ... heating device, 9 ...
Heat insulation layer, 10 heating element, 14 processing mold, 15 space, 23 differential pressure generator.
Claims (3)
有する高圧容器（１）と前記容器（１）と前記開口部
（1A）（1B）をそれぞれ開閉自在に閉塞する上・下の蓋
部材（２）（３）とで内部に高圧室（４）が画成され、
該高圧室（４）に、倒立コップ形状の断熱層（９）と該
断熱層（９）の内側に配設されている加熱要素（10）と
からなる加熱装置（８）が内蔵されて、該加熱装置
（８）の内側で被加工物（16）を熱間静水圧下で加工す
る処理室（11）を備えた熱間静水圧下加工装置におい
て、 前記処理室（11）内に、被加工物（16）を介して処理室
（11）空間と隔絶した空間（15）を形成する加工用型
（14）を配設するとともに、前記隔絶された空間（15）
を、高圧容器（１）外に連通する通路（19）を下蓋部材
（３）に設け、該通路（19）と前記処理室（11）とを連
通する管路（43）を設け、更に、前記加工用空間（15）
と処理室（11）空間との圧力が連通バランスされかつ両
者（15）（11）の連通を断にして差圧力を生起する差圧
発生装置（23）を設けたことを特徴とする熱間静水圧下
加工装置。1. A high-pressure container (1) having openings (1A) and (1B) at both ends in the axial direction of the container, and the container (1) and the openings (1A) and (1B) are closed and opened respectively. A high-pressure chamber (4) is defined inside by the lower lid members (2) and (3);
The high-pressure chamber (4) includes a built-in heating device (8) including an inverted cup-shaped heat insulating layer (9) and a heating element (10) disposed inside the heat insulating layer (9). In a hot isostatic pressing apparatus having a processing chamber (11) for processing a workpiece (16) under hot isostatic pressure inside the heating device (8), A processing mold (14) for forming a space (15) isolated from the processing chamber (11) space via the workpiece (16) is provided, and the isolated space (15) is provided.
A passage (19) communicating with the outside of the high-pressure vessel (1) is provided in the lower lid member (3), and a conduit (43) communicating the passage (19) with the processing chamber (11) is provided. , The processing space (15)
Characterized by providing a pressure difference generating device (23) for generating a pressure difference by disconnecting the communication between the pressures (15) and (11) and the pressure between the pressure and the space of the processing chamber (11). Hydrostatic pressing machine.
有する高圧容器（１）と前記開口部（1A）（1B）をそれ
ぞれ開閉自在に閉塞する上・下の蓋部材（２）（３）と
で内部に高圧室（４）が画成され、該高圧室（４）に、
倒立コップ形状の断熱層（９）と該断熱層（９）の内側
に配設されている加熱要素（10）とからなる加熱装置
（８）が内蔵されて、該加熱装置（８）の内側で被加工
物（16）を熱間静水圧下で加工する処理室（11）を備
え、 更に、前記処理室（11）内に、被加工物（16）を介して
処理室（11）空間と隔絶した空間（15）を形成する加工
用型（14）を配設するとともに、前記隔絶された空間
（15）を、高圧容器（１）外に連通する通路（19）を下
蓋部材（３）に設け、該通路（19）と前記処理室（11）
とを連通する管路（43）を設けた熱間静水圧下加工装置
を用いて前記被加工物（16）を高温静水圧下で加工する
方法であって、前記加工用空間（15）と処理室（11）空
間との圧力が連通バランスした状態にしてから、両者
（15）（11）の連通を断にして両者（15）（11）間に差
圧力を生じさせることにより被加工物（16）を加工用型
（14）にて高温静水圧下で加工することを特徴とする熱
間静水圧下加工方法。2. A high-pressure container (1) having openings (1A) and (1B) at both ends in the axial direction of the container, and upper and lower lid members () for closing and opening the openings (1A) and (1B) respectively. 2) and (3) define a high-pressure chamber (4) inside.
A heating device (8) including an inverted cup-shaped heat insulating layer (9) and a heating element (10) disposed inside the heat insulating layer (9) is built in, and the heating device (8) is provided inside the heating device (8). A processing chamber (11) for processing the workpiece (16) under hot isostatic pressure, and further, a processing chamber (11) space in the processing chamber (11) via the workpiece (16). A processing mold (14) for forming a space (15) isolated from the high pressure vessel (1) is provided, and a passage (19) communicating the isolated space (15) to the outside of the high-pressure vessel (1) is provided by a lower lid member ( 3), the passage (19) and the processing chamber (11)
A method for processing the workpiece (16) under high-temperature hydrostatic pressure using a hot isostatic pressing apparatus provided with a pipe (43) communicating with the processing space (15), After the pressure with the space in the processing chamber (11) is in a communication-balanced state, the communication between the two (15) and (11) is cut off to generate a differential pressure between the two (15) and (11), and the workpiece is processed. A hot isostatic pressing method, wherein (16) is processed under a high-temperature hydrostatic pressure using a processing die (14).
を減圧調整でなされることを特徴とする請求項（２）記
載の熱間静水圧下加工方法。3. The hot isostatic pressing method according to claim 2, wherein the generation of the differential pressure is performed by reducing the pressure in the processing space (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1147675A JP2583607B2 (en) | 1989-06-08 | 1989-06-08 | Hot isostatic pressing apparatus and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1147675A JP2583607B2 (en) | 1989-06-08 | 1989-06-08 | Hot isostatic pressing apparatus and processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0311288A JPH0311288A (en) | 1991-01-18 |
| JP2583607B2 true JP2583607B2 (en) | 1997-02-19 |
Family
ID=15435739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1147675A Expired - Fee Related JP2583607B2 (en) | 1989-06-08 | 1989-06-08 | Hot isostatic pressing apparatus and processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2583607B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220029984A (en) * | 2020-09-02 | 2022-03-10 | (주)삼양세라텍 | Cold isostatic pressing apparatus with double chamber |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139413B (en) * | 2020-02-19 | 2021-06-08 | 南京理工大学 | Method for improving service performance of superplastic forming part |
-
1989
- 1989-06-08 JP JP1147675A patent/JP2583607B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220029984A (en) * | 2020-09-02 | 2022-03-10 | (주)삼양세라텍 | Cold isostatic pressing apparatus with double chamber |
| KR102416900B1 (en) | 2020-09-02 | 2022-07-06 | (주)삼양세라텍 | Cold isostatic pressing apparatus with double chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0311288A (en) | 1991-01-18 |
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