JP7490852B2 - チャンバー - Google Patents
チャンバー Download PDFInfo
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- JP7490852B2 JP7490852B2 JP2023064322A JP2023064322A JP7490852B2 JP 7490852 B2 JP7490852 B2 JP 7490852B2 JP 2023064322 A JP2023064322 A JP 2023064322A JP 2023064322 A JP2023064322 A JP 2023064322A JP 7490852 B2 JP7490852 B2 JP 7490852B2
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- powder
- sintering
- die
- electric current
- electric
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- 238000005245 sintering Methods 0.000 claims description 216
- 239000000843 powder Substances 0.000 claims description 206
- 238000000465 moulding Methods 0.000 claims description 56
- 239000011261 inert gas Substances 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims 2
- 238000000034 method Methods 0.000 description 88
- 230000000052 comparative effect Effects 0.000 description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 27
- 229910052799 carbon Inorganic materials 0.000 description 25
- 238000002490 spark plasma sintering Methods 0.000 description 25
- 239000000463 material Substances 0.000 description 23
- 238000012856 packing Methods 0.000 description 21
- 239000002245 particle Substances 0.000 description 21
- 238000004663 powder metallurgy Methods 0.000 description 19
- 230000008569 process Effects 0.000 description 19
- 230000005611 electricity Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 15
- 238000003825 pressing Methods 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 230000032258 transport Effects 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011210 fiber-reinforced concrete Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003462 bioceramic Substances 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 239000002134 carbon nanofiber Substances 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- -1 hydroxyapatite Chemical compound 0.000 description 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000005300 metallic glass Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000005477 sputtering target Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
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Description
実施形態1に係る通電焼結方法及び通電焼結装置を説明する前に、まず、比較例1及び比較例2に係る焼結方法を説明する。そして、比較例1及び比較例2の焼結方法と対比させて、本実施形態の通電焼結方法を説明する。これにより、本実施形態の通電焼結方法の特徴をより明確にする。その後、本実施形態の通電焼結装置を説明する。
比較例1に係る焼結方法として、粉末冶金法を説明する。粉末冶金法は、粉末をプレス機で押し固めて形成させた圧粉体を、高温で加熱することで焼結させ、高強度の素材や部品を製造する方法である。図1は、比較例1に係る粉末冶金法を例示した工程図である。図1に示すように、粉末冶金法は、粉末充填ステップ、加圧成形ステップ、離型ステップ、加熱焼結ステップ、排出ステップを備えている。用いる粉末10が複数の種類を含む場合には、粉末充填ステップの前に、粉末混合ステップを有してもよい。
比較例2に係る焼結方法として、SPS法を説明する。SPS法は、カーボン型に粉末10を充填し、加圧しながら通電することで、短時間に焼結を行う。図2は、比較例2に係るSPS法を例示した工程図である。図2に示すように、SPS法は、粉末充填ステップ、加圧通電焼結ステップ、離型排出ステップを備えている。なお、SPS法も、比較例1の粉末冶金法と同様に、用いる粉末10が複数の種類の材料を含む場合には、粉末充填ステップの前に、粉末混合ステップを有してもよい。
次に、本実施形態に係る通電焼結方法を説明する。本実施形態の通電焼結方法は、金型に粉末充填後、低温かつ高圧で加圧することで、高密度の圧粉体を形成する。そして、形成した圧粉体を離型・通電して焼結体を形成する。図3は、実施形態1に係る通電焼結方法を例示した工程図である。図4は、実施形態1に係る通電焼結方法を例示したフローチャート図である。図3及び図4に示すように、実施形態1に係る通電焼結方法は、粉末充填ステップ、加圧成形ステップ、離型ステップ、通電焼結ステップ、排出ステップを備えている。なお、本実施形態の通電焼結法も、用いる粉末10が複数の種類の材料を含む場合には、粉末充填ステップの前に、粉末混合ステップを有してもよい。
次に、本実施形態の通電焼結装置を説明する。図5は、実施形態1に係る通電焼結装置を例示した構成図である。図6は、実施形態1の別の例に係る通電焼結装置を例示した構成図である。図5及び図6に示すように、通電焼結装置1及び1aは、金型11、上パンチ13、下パンチ12、加圧成形手段18、離型手段19、通電焼結手段20を備えている。また、通電焼結装置1は、チャンバー21及び粉末充填手段22を備えてもよいし、図示しない圧力計、温度計、電流計を有してもよい。さらに、図6に示すように、通電焼結装置1aは、自動化による焼結体17の形成のために、制御手段23を備えてもよい。
次に、実施形態2に係る通電焼結装置2を説明する。本実施形態の通電焼結装置は、加圧成形を行う部分と、通電焼結を行う部分と、を分けている。これにより、加圧成形及び通電焼結を並行して行うことができる。
10 粉末
11 金型
12 下パンチ
13 上パンチ
15、15a、15b 圧粉体
17 焼結体
18 加圧成形手段
19 離型手段
20 通電焼結手段
21 チャンバー
22 粉末充填手段
23 制御手段
24、25電極
26、27 端子
31 粉末充填部
32 加圧成形部
33 通電焼結部
34 排出部
35 搬送手段
103 SPS装置
111 金型
112 下パンチ
113 上パンチ
115 圧粉体
116 焼結炉
117 焼結体
212 下パンチ
213 上パンチ
214 カーボン型
217 焼結体
310 型セット
322 粉末充填手段
331 粉末充填部
332 予熱部
333 通電焼結部
334 冷却部
Claims (3)
- 内部を大気から遮断して所定の雰囲気とするための排気弁及び不活性ガス供給弁の少なくともいずれかを含むガス弁と、
前記内部において、一方及び他方が開口した金型に充填した粉末を、前記一方の開口部に挿入した第1パンチ及び前記他方の開口部に挿入した第2パンチにより加圧して圧粉体を成形する加圧成形部と、
前記内部において、前記金型から離型した前記圧粉体に通電して前記圧粉体を焼成する通電焼結部と、
を備えるチャンバー。 - 信号を送信することにより、前記内部を所定の雰囲気になるように前記排気弁及び前記不活性ガス供給弁の少なくともいずれかを含むガス弁を制御する制御手段、
を備えた請求項1に記載のチャンバー。 - 前記制御手段は、前記所定の雰囲気として、大気雰囲気、減圧雰囲気及び不活性ガス雰囲気の少なくともいずれかになるように制御する、
請求項2に記載のチャンバー。
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CN1482269A (zh) | 2003-07-22 | 2004-03-17 | 四川大学 | 大电流制备铁基复合材料及硬质合金的方法 |
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