JPS62214101A - Method for sealing metal or alloy powder to vessel for hot hydrostatic press molding - Google Patents
Method for sealing metal or alloy powder to vessel for hot hydrostatic press moldingInfo
- Publication number
- JPS62214101A JPS62214101A JP5505586A JP5505586A JPS62214101A JP S62214101 A JPS62214101 A JP S62214101A JP 5505586 A JP5505586 A JP 5505586A JP 5505586 A JP5505586 A JP 5505586A JP S62214101 A JPS62214101 A JP S62214101A
- Authority
- JP
- Japan
- Prior art keywords
- vessel
- vent hole
- alloy powder
- cover
- press molding
- 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
- 239000000843 powder Substances 0.000 title claims abstract description 19
- 239000000956 alloy Substances 0.000 title claims abstract description 14
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 14
- 239000002184 metal Substances 0.000 title claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 title claims abstract description 4
- 238000000034 method Methods 0.000 title claims description 7
- 230000002706 hydrostatic effect Effects 0.000 title abstract 2
- 238000000465 moulding Methods 0.000 title abstract 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000007872 degassing Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000001513 hot isostatic pressing Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 238000009924 canning Methods 0.000 description 4
- 239000012255 powdered metal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Powder Metallurgy (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、熱間静水圧プレス成形用缶への粉末状の金属
又は合金類の封入方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of enclosing powdered metals or alloys into cans for hot isostatic pressing.
従来の技術
粉末状の金属又は合金類を熱間静水圧プレス（以降１−
Ｉ Ｉ Ｐと略記する）ににって焼成する際に、先ず金
属粉末又は合金粉末を缶に封入するキャンニング■程が
必要である。Conventional technology Powdered metals or alloys are hot isostatically pressed (hereinafter referred to as 1-
When firing using IIP (abbreviated as IIP), a canning step (1) is first required in which metal powder or alloy powder is sealed in a can.
従来このキャンニング工程では金属粉末又は合金粉末を
缶に充填し、これを常温で減圧脱気しながら溶接真空封
止する工程がとられている。Conventionally, this canning process involves filling a can with metal powder or alloy powder, and vacuum-sealing the can by welding while degassing under reduced pressure at room temperature.
発明が解決しようとする問題点
上述のような従来のキャンニング工程では溶接時の熱に
にり充填物が酸化されたり、缶内の脱気が十分に行われ
ていなかった。Problems to be Solved by the Invention In the conventional canning process as described above, the filling material is oxidized by the heat during welding, and the inside of the can is not sufficiently degassed.
本発明の目的はＨＩＰ処理に対して十分脱気され、無酸
化の焼結体を！！Ｉ造するためのｌ−１ｒＰ用缶への金
属又は合金粉末の封入方法を提供することにある。The purpose of the present invention is to produce a sintered body that is sufficiently degassed and oxidized during HIP treatment! ! An object of the present invention is to provide a method for enclosing metal or alloy powder into a l-1rP can for I-1RP production.
問題点を解決するための手段
キャンニング工程で、金属粉末又は合金粉末を充填した
缶にアルゴンガスを流入させつつカバーを溶接すること
で充填物の酸化を防止し、さらにその缶を粉末の溶融点
以下の高温度に加熱しながら減圧脱気することによって
、缶内の脱気を十分に行なう。しかる後に缶の脱気孔を
封止すれば得られた封入缶は完全にＩＩＲ気されている
。Means to solve the problem During the canning process, argon gas is introduced into the can filled with metal powder or alloy powder, and a cover is welded to prevent the filling from oxidizing. The interior of the can can be sufficiently degassed by degassing under reduced pressure while heating to a high temperature below 100 mL. After that, the deaeration hole of the can is sealed, and the resulting sealed can is completely exposed to IIR gas.
実施例 本発明の実施例について以下に説明する。Example Examples of the present invention will be described below.
第１図に示すように、缶側部１と缶側部２を溶接部３に
て溶接して形成した底付き缶に、酸素含有Ｉｔ ５５０
ｐｐｍの市販純鉄粉６を充填し、脱気孔付きカバー４
を第２図に示すごとくかぶせ、脱気孔５より缶内にアル
ゴンガスを流入させつつカバー４を溶接部３′にて溶接
した後、脱気孔５を排気系に接続し脱気しつつ缶を１，
０００℃に加熱し１０＝ Ｔｏｒｒに減圧して脱気孔５
を封止した。As shown in FIG. 1, a can with a bottom is formed by welding can side parts 1 and 2 at a welding part 3, and an oxygen-containing It 550
Filled with ppm of commercially available pure iron powder 6 and covered with a degassing hole 4
As shown in Fig. 2, the cover 4 is welded at the welding part 3' while argon gas is flowing into the can through the degassing hole 5, and then the degassing hole 5 is connected to the exhaust system and the can is degassed. 1,
Heat to 000°C and reduce pressure to 10 Torr to open deaeration hole 5.
was sealed.
この缶を温度１，１８０℃、圧力１．０００ｋｇ／ｃｍ
Ｑの条件でＨＩＰ処理した。このようにして第１表に示
すごとく酸素含有鎖の少ない焼結体を得ることができた
。This can was heated to a temperature of 1,180℃ and a pressure of 1.000kg/cm.
HIP treatment was performed under the conditions of Q. In this way, a sintered body containing few oxygen-containing chains as shown in Table 1 could be obtained.
第１表
なお、ここでは金属粉末又は合金粉末として市販の純鉄
粉を用いたが、本発明は純鉄粉に限定されるものではな
い。Table 1 Note that although commercially available pure iron powder was used here as the metal powder or alloy powder, the present invention is not limited to pure iron powder.
発明の効果
以上述べたごとく、本発明によれば金属粉末又は合金粉
末の酸化を防止した焼結体を得ることができる。Effects of the Invention As described above, according to the present invention, it is possible to obtain a sintered body in which oxidation of metal powder or alloy powder is prevented.
第１図は、素化の縦断面図、第２図は、缶に脱気孔付き
カバーを溶接した後の縦断面図である。
１・・・缶側部、２・・・缶底部、３．３′・・・溶接
部、４・・・カバー、５・・・脱気孔、６・・・金属粉
末又は合金粉末。FIG. 1 is a vertical cross-sectional view of the bare can, and FIG. 2 is a vertical cross-sectional view after welding a cover with a deaeration hole to the can. DESCRIPTION OF SYMBOLS 1... Can side part, 2... Can bottom part, 3.3'... Welding part, 4... Cover, 5... Deaeration hole, 6... Metal powder or alloy powder.
Claims (1)
ゴンガスを流入し脱気孔付きカバーを溶接した後、前記
金属粉末又は合金粉末の溶融点以下の高温で脱気し、前
記缶の脱気孔を封止することを特徴とする熱間静水圧プ
レス成形用缶への金属又は合金粉末の封入方法。A can is filled with metal or alloy powder, then argon gas is introduced into the can, a cover with a degassing hole is welded on, and the can is degassed at a high temperature below the melting point of the metal powder or alloy powder. A method for enclosing metal or alloy powder into a can for hot isostatic pressing, characterized by sealing pores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5505586A JPS62214101A (en) | 1986-03-14 | 1986-03-14 | Method for sealing metal or alloy powder to vessel for hot hydrostatic press molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5505586A JPS62214101A (en) | 1986-03-14 | 1986-03-14 | Method for sealing metal or alloy powder to vessel for hot hydrostatic press molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62214101A true JPS62214101A (en) | 1987-09-19 |
Family
ID=12987993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5505586A Pending JPS62214101A (en) | 1986-03-14 | 1986-03-14 | Method for sealing metal or alloy powder to vessel for hot hydrostatic press molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62214101A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946158A (en) * | 2016-05-19 | 2016-09-21 | 中国工程物理研究院化工材料研究所 | High polymer material temperature isostatic pressing method |
-
1986
- 1986-03-14 JP JP5505586A patent/JPS62214101A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946158A (en) * | 2016-05-19 | 2016-09-21 | 中国工程物理研究院化工材料研究所 | High polymer material temperature isostatic pressing method |
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