JPS6046304A - Preparation of sintered product - Google Patents
Preparation of sintered productInfo
- Publication number
- JPS6046304A JPS6046304A JP15454383A JP15454383A JPS6046304A JP S6046304 A JPS6046304 A JP S6046304A JP 15454383 A JP15454383 A JP 15454383A JP 15454383 A JP15454383 A JP 15454383A JP S6046304 A JPS6046304 A JP S6046304A
- Authority
- JP
- Japan
- Prior art keywords
- green compact
- metal powder
- powder
- sintering
- adhered
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、焼結前の製造方法の改良に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to improvements in the manufacturing method prior to sintering.
（従来技術）
焼結前、例えば第１図（ａ）に示すような自動中用ター
ビンハブ１は、圧粉成形機により粉体（鉄＼
粉）を所定形状に成形することにより製造しているが、
成形時に金型の継目に対応する各月７１／に成形バリ２
（第１図（１〕）参照）が発生する。(Prior art) Before sintering, for example, an automatic intermediate turbine hub 1 as shown in FIG. There are, but
Molding burr 2 on each month 71/ corresponding to the joint of the mold during molding
(See FIG. 1 (1)) occurs.
このような成形パリを取除くために、従来では、圧粉体
（タービンハブ）１を焼結した後に、ノ＜レル処理やシ
ョノトフラスト処理をしていたか、焼結後であるから硬
度か高く、犬とな処理パワーか必要で成形パリ取りが容
易でないという問題かあった。In order to remove such molding particles, conventionally, after sintering the green compact (turbine hub) 1, Norel treatment or Shonoto Frust treatment was performed, or the hardness was changed after sintering. The problem was that it was expensive and required a lot of processing power, making it difficult to remove burrs from the molding.
また、焼結前にパリを取るものとして、コノ。笠の弾性
体を噴射するものや、ショットを自然落ドさせるもの笠
かあるが、これらはパリ取り後成形品に付着した弾性体
やショア１等を取除かなければならず、工程か複雑にな
るという不只訃かあった。In addition, Kono is used to remove paris before sintering. There are some types that spray the elastic material of the cap and others that allow the shot to fall naturally, but these require removal of the elastic material and Shore 1 etc. attached to the molded product after deburring, making the process complicated. There was a misfortune that it became.
（発明の目的）
本発明は、小さな処理パワーで容易に成形ノ＼り取りか
で外、同時に焼結雰囲気カスのコントロールの容易化、
焼結前の表面硬化の促進らできるようにした焼結前の製
造方法を提供することをＩＩ的とするものである。(Objective of the Invention) The present invention aims to easily remove molding nozzles with small processing power, and at the same time to facilitate control of sintering atmosphere debris.
A second object of the present invention is to provide a manufacturing method before sintering that can promote surface hardening before sintering.
（発明の構成）
このため本発明は、成形された圧粉１本に銅糸の金属粉
を噴射することにより圧粉体の成形／＼りを取る一方、
この銅系の金属粉を圧粉体の表面や気孔に付着させたま
ま圧粉体の焼結を行なって、伺着した銅系の金属粉を圧
粉体の表面層に溶浸させるようにしたものである。(Structure of the Invention) For this reason, the present invention aims at forming a green compact by injecting metal powder of copper thread onto one compact, while removing strain.
The green compact is sintered with this copper-based metal powder attached to the surface and pores of the green compact, and the deposited copper-based metal powder is infiltrated into the surface layer of the green compact. This is what I did.
（発明の効果）
本発明によれば、焼結前の硬度が低い圧粉体に銅系の金
属粉を噴射するものであるか呟軽い噴射力でも容易に成
形パリを取ることかでと圧粉体を傷つけることもない。(Effects of the Invention) According to the present invention, copper-based metal powder is injected onto a green compact with low hardness before sintering. It does not damage the powder.
また、この銅系の金属粉を（＝１着させたよよ圧粉体の
焼結を行なって圧粉体の表面層に溶浸させるものである
か呟圧粉体の表面層に、カーボンと反応しにくい銅系の
金属粉がコートされることになり、焼結雰囲気ガス中の
カーボン量のコントロールがラフに行なえるようになる
。In addition, this copper-based metal powder (= 1) is deposited on the powder compact and is sintered to infiltrate the surface layer of the compact. Coating with copper-based metal powder, which is difficult to react with, makes it possible to roughly control the amount of carbon in the sintering atmosphere gas.
さらに、銅系の金属粉が圧粉体の表面層に溶浸するので
、焼結前の表面硬化も促進されるようになる。Furthermore, since the copper-based metal powder is infiltrated into the surface layer of the green compact, surface hardening before sintering is also promoted.
（実施例）
第２図に示すように、圧粉体１のパリ取り装置３は、図
中左側の圧粉成形機４と、し１中右側のプールスペース
５との間に配置され、圧粉成形機、［から一定サイクル
で打ち出される圧粉体１を搬入シュート６でメツシュベ
ル）７ｊ二に１般人し、該メツシュベルト７で搬送する
途中で自動的にハリ取りが行なわれ、ハリ取り後の圧粉
体１は搬出シュート８でプールスペース５にｌｒ！２出
されるようになる。(Example) As shown in FIG. 2, the deburring device 3 for the powder compact 1 is arranged between the compaction machine 4 on the left side of the figure and the pool space 5 on the right side of the compaction 1. In the powder molding machine, the compacted powder 1 that is ejected in a certain cycle from the mesh belt 7 is transferred to the carry-in chute 6, and while it is being conveyed by the mesh belt 7, the firmness is automatically removed, and after the firmness is removed. The green compact 1 is transferred to the pool space 5 by the unloading chute 8. 2 will now be issued.
上記パリ取り装置３には、メツシュベルト７の外周囲及
び出、入ロアａ＋７ｂの周囲をカバーする防塵カバー５
〕が備えられ、該防塵カバー！Ｊ内のメツシュベル１７
の」二、下刃に、高圧空気ノ＼を利用して銅系の金属粉
（以下Ｃｕ粉という）Ｎ（をメツシュベルト７上の圧粉
体１に向って噴射する７スル１０゜１１が設けられてい
る。The above-mentioned deburring device 3 includes a dustproof cover 5 that covers the outer circumference of the mesh belt 7 and the outer circumference of the outgoing and incoming lower a+7b.
] Equipped with a dustproof cover! Metushbel 17 in J
2. The lower blade is equipped with a 7suru 10° 11 that injects copper-based metal powder (hereinafter referred to as Cu powder) N (hereinafter referred to as Cu powder) toward the green compact 1 on the mesh belt 7 using high-pressure air. It is being
−に記防塵カバー５〕の下部には、Ｃｕ粉Ｎ１の貯蔵ホ
ッパー１２か連設されていて、該ホッパー１２から各ノ
ズル１０．１１のＣｕ粉供給管１（ｌａ。- A storage hopper 12 for Cu powder N1 is connected to the lower part of the dustproof cover 5], and a Cu powder supply pipe 1 (la) from the hopper 12 to each nozzle 10.11.
１．１ａにＣｕ粉Ｎ４が供給される。また、高圧空気Ａ
は、フンプレソサー算（不図示）から各７スル１０゜１
１の空気供給管１０ｂ、１］、ｂに供給される。Cu powder N4 is supplied to 1.1a. In addition, high pressure air A
is 10°1 for each 7 slots from the Funpresocer calculation (not shown).
1 air supply pipe 10b, 1], b.
上記Ｃｕ粉Ｍは、コストの面から銅粉が好ましいか、ニ
ッケル粉やコバルト粉なども用いることか゛でとる。As the Cu powder M, copper powder is preferable from the viewpoint of cost, or nickel powder, cobalt powder, etc. may also be used.
しかして、上記パリ取り装置３において、ｆ５３図に示
すように、圧粉体１をメツシュベルト７で搬送しなから
ノズル１０．１１からＣｕ粉を噴射すると、焼結前の圧
粉体１は硬度か低いがら第・１図（、）及び第４図（Ｉ
〕）に示すように成形パリ２が軽い噴射力で脱落または
縮少して取り除かれるようになる。また、ノズル１０．
１１の噴射力は軽いか呟圧粉体１にＣｕ粉Ｍの衝突によ
る傷などがつかない。In the deburring device 3, as shown in Fig. f53, when the green compact 1 is conveyed by the mesh belt 7 and Cu powder is injected from the nozzle 10.11, the green compact 1 before sintering has a hardness. Figure 1 (, ) and Figure 4 (I
]) As shown in FIG. 2, the molded material 2 falls off or shrinks with a light jetting force and is removed. Also, nozzle 10.
The jetting force of No. 11 is so light that no damage is caused to the compacted powder 1 by the collision of the Cu powder M.
このＣｕｊ１５）Ｍの噴射により圧粉体１の表面や気孔
にＣＬＩ粉か４１１着するが、これはそのまま残してお
く。The CLI powder 411 is deposited on the surface and pores of the powder compact 1 by this injection of Cuj15)M, but this is left as is.
一方、第５図（、）に示すように、圧粉体１の焼結装置
１５には、メツシュベルト１６による圧粉体１の搬送方
向に向がって、順次に、脱ロウ処理ゾーン１７．予備焼
ゾーン１８１本焼ゾーン１３〕す除冷ゾーン２０．冷却
ゾーン２１が設けられてぃて、各ゾーン１７〜２１にお
ける温度は、第５図（ａ）と対比して示した第５図（ｂ
）のようになっている。On the other hand, as shown in FIG. 5(,), the sintering device 15 for the green compact 1 has dewaxing processing zones 17. Pre-firing zone 181 Main firing zone 13] Cooling zone 20. A cooling zone 21 is provided, and the temperature in each zone 17 to 21 is as shown in FIG. 5(b) compared with FIG. 5(a).
).
しかして、焼結装置１５において、ＣＬＩ粉Ｍを付着さ
ぜたままの圧粉体１をメツシュベル１１（３で搬送しな
がら焼結処理を行なうと、第６図（、）及び第６図（ｌ
〕）に示すように、焼結の過程で、圧粉体１の表面に付
着したＣｕ粉１１１′Ｉが圧粉体１の表面層に溶浸され
る。In the sintering device 15, the green compact 1 with the CLI powder M adhered to it is sintered while being conveyed by the mesh belt 11 (3). l
]), during the sintering process, the Cu powder 111'I attached to the surface of the compact 1 is infiltrated into the surface layer of the compact 1.
そうすると、圧粉体１の表面層にＣＬＩ Ａ５ｒ Ｍか
コート３れることになり、Ｃｕ粉ｈｉはカーボンと反応
しにくいので、通常圧粉Ｉ４，１中のカーボンＨ，，Ｈ
５（例えは０．８％）と略等量にコントロールしてｊ；
＜必要かあろ焼結ガス雰囲気中のカーボンｈ：、のフン
１０−ルを、ラフ（例えは０．６％〜１．（）％程瓜）
に設定でとるようになる。In this case, the surface layer of the powder compact 1 will be coated with CLI A5r M, and since Cu powder hi is difficult to react with carbon, the carbon H,,H
5 (for example, 0.8%) and control the amount to be approximately equal to j;
<Required carbon h in the sintering gas atmosphere: Rough (for example, 0.6% to 1.()%)
It will be set to .
また、ＣＬＩ粉へ４か圧粉体１の表面に’ｔＦｉ−浸す
るので、焼結前の表面硬化も促進されることになる。。Furthermore, since the CLI powder is immersed into the surface of the green compact 1, surface hardening before sintering is also promoted. .
第１図（ａ）はパリ取り前の圧粉体の断面図、第１図仙
）は第１図（ａ）のａ部拡大断面図、第２図は本発明に
係るハリ取り装置の側面図、第３図は第２図の装置によ
るパリ取り中の圧粉体の断面図、第・１図（ａ）はパリ
取り後の圧粉体の断面図、第・・１図（１〕）は第４図
（、）のａ部拡大断面図、第５図（、）は規結装置の側
面図、第５図（１））は第５図（ａ）の各ゾーンの温度
グラフ、第６図（ａ）は規結後の圧粉体の断面図、第６
図（１））は第６図（ａ）のａ部拡大断面図である。
１・・・圧粉体（タービンハブ）、２・・・成形ハリ、
３・・パリ取り装置、］、 （１１、］ ］ ・・ノス
ル、］５・・煉結装置、 Ｍ・・Ｃｕ粉（銅系の金属粉
）、Ａ・・・高圧空気。FIG. 1(a) is a cross-sectional view of the green compact before deburring, FIG. 1(a) is an enlarged cross-sectional view of part a of FIG. 1(a), and FIG. Figure 3 is a cross-sectional view of the green compact being deburred using the apparatus shown in Figure 2, Figure 1 (a) is a cross-sectional view of the green compact after deburring, and Figure 1 (1) ) is an enlarged cross-sectional view of section a in FIG. 4(,), FIG. 5(,) is a side view of the tying device, FIG. 5(1)) is a temperature graph of each zone in FIG. 5(a), Figure 6(a) is a cross-sectional view of the green compact after compaction;
FIG. 6(1)) is an enlarged sectional view of section a in FIG. 6(a). 1... Green compact (turbine hub), 2... Molding firmness,
3. Deburring device, ], (11,] ] ... Nostle, ]5. Blend device, M. Cu powder (copper metal powder), A... High pressure air.
Claims (1)
射して圧粉体の成形パリを取るとともに、該銅系の金属
粉を前記圧粉体の表面や気孔にイ：ｊ着させ、その後、
この圧粉体の焼結を行なって、イ、１着した銅系の金属
粉を圧粉体の表面層に溶侵させることを特徴とする焼結
前の製造方法。(1) Injecting copper-based metal powder onto a green compact formed into a predetermined shape to remove forming burrs from the green compact, and injecting the copper-based metal powder onto the surface and pores of the green compact: j, and then,
A manufacturing method before sintering, characterized in that the green compact is sintered, and (i) the deposited copper-based metal powder is infiltrated into the surface layer of the green compact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15454383A JPS6046304A (en) | 1983-08-23 | 1983-08-23 | Preparation of sintered product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15454383A JPS6046304A (en) | 1983-08-23 | 1983-08-23 | Preparation of sintered product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6046304A true JPS6046304A (en) | 1985-03-13 |
| JPH0521963B2 JPH0521963B2 (en) | 1993-03-26 |
Family
ID=15586553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15454383A Granted JPS6046304A (en) | 1983-08-23 | 1983-08-23 | Preparation of sintered product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6046304A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030061574A (en) * | 2002-01-15 | 2003-07-22 | 주식회사 삼한 | Method for manufacturing a part having holes using metal powder |
| KR100488404B1 (en) * | 2002-08-02 | 2005-05-10 | 최규태 | A powder metallurgy mold |
-
1983
- 1983-08-23 JP JP15454383A patent/JPS6046304A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030061574A (en) * | 2002-01-15 | 2003-07-22 | 주식회사 삼한 | Method for manufacturing a part having holes using metal powder |
| KR100488404B1 (en) * | 2002-08-02 | 2005-05-10 | 최규태 | A powder metallurgy mold |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0521963B2 (en) | 1993-03-26 |
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