JPH01319601A - Production of sintering metal - Google Patents
Production of sintering metalInfo
- Publication number
- JPH01319601A JPH01319601A JP63149948A JP14994888A JPH01319601A JP H01319601 A JPH01319601 A JP H01319601A JP 63149948 A JP63149948 A JP 63149948A JP 14994888 A JP14994888 A JP 14994888A JP H01319601 A JPH01319601 A JP H01319601A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- metal
- sintering
- degreasing
- alloy
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 36
- 239000002184 metal Substances 0.000 title claims abstract description 36
- 238000005245 sintering Methods 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 239000000843 powder Substances 0.000 claims abstract description 69
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 21
- 239000000956 alloy Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000011230 binding agent Substances 0.000 claims abstract description 18
- 238000005238 degreasing Methods 0.000 claims abstract description 17
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 5
- 238000009688 liquid atomisation Methods 0.000 claims abstract description 4
- 238000009689 gas atomisation Methods 0.000 claims abstract 3
- 238000002156 mixing Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 12
- 239000000203 mixture Substances 0.000 abstract description 8
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 238000013329 compounding Methods 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 description 5
- 241000699670 Mus sp. Species 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000011812 mixed powder Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000748 compression moulding Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000002747 voluntary effect Effects 0.000 description 2
- -1 5US304 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910017318 Mo—Ni Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910003296 Ni-Mo Inorganic materials 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 235000009973 maize Nutrition 0.000 description 1
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は金属および合金粉末等を用いて、焼結体を得る
ための製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a manufacturing method for obtaining a sintered body using metal, alloy powder, and the like.
［従来の技術］
従来、焼結金属は、金属または合金粉末とバインダを混
練・粉砕し、射出成形、押出し成形、圧縮成形等の加工
成形した後、この成形体を加熱脱脂して、生成した脱脂
体を焼結することにより製造されている。この金属又は
合金粉末はカスアトマイズ法または液体アトマイス法に
より製造された粉末を使用している。[Conventional technology] Conventionally, sintered metal was produced by kneading and pulverizing metal or alloy powder and a binder, processing and forming the product by injection molding, extrusion molding, compression molding, etc., and then heating and degreasing the molded product. Manufactured by sintering a degreased body. This metal or alloy powder is produced by a cast atomization method or a liquid atomization method.
［発明が解決しようとする課題Ｊ
しかしながら、合金又は金属粉末を使用した場合には１
種々の不都合を生じる。[Problem to be solved by the invention J However, when alloys or metal powders are used, 1
This causes various inconveniences.
まず、カスアｌ−マイズ粉末を用いた場合についてであ
るが、粉末の形状か真珠であり、また粉末粒子に空洞を
持つものが多数存在し、又、平均粒径が２０〜４０μｍ
と大きいことが挙げられ、このなめバインダと混練・粉
砕し、射出成形、押出し成形または圧縮成形した後、成
形体を加熱脱脂する際に粉末同士の流動性及び凝集性に
影響するからみ合いが、極めて低くなり、バインダが抜
ける際に発生する膨張力に比較して粉体の密着強度か劣
り、その結果ふくれを生じやすい、また、得られる焼結
体の焼結密度が上がらない等の欠点があった。First, regarding the case of using Casualized powder, the shape of the powder is pearl, and there are many powder particles with cavities, and the average particle size is 20 to 40 μm.
After kneading and pulverizing this binder, injection molding, extrusion molding, or compression molding, the entanglement that affects the fluidity and cohesiveness of the powders occurs when the molded product is heated and degreased. The adhesion strength of the powder is inferior to the expansion force generated when the binder comes out, and as a result, it is easy to cause blistering, and the sintered density of the obtained sintered body does not increase. there were.
次に、合金又は金属粉末として液体ア）・マイズ粉末を
用いた場合についてであるが、通常、噴霧媒質としては
、水を使用するなめ、各製造１稈において、それが影響
を及ぼし酸素等の不純物の混入が大となり、更に形状が
異形状であるため、バインダと混練した際凝縮力及び流
動性に影響するからみ合いか強過きるため、流動性に乏
しくなり、射出成形するためにはバインダの配合量を多
くしなければならない。そのため、バインダを除去する
には長時間かかる。Next, regarding the case where liquid atomized powder is used as the alloy or metal powder, water is usually used as the spraying medium, and in each culm produced, it has an effect on oxygen, etc. Due to the large amount of impurities mixed in and the irregular shape, when kneaded with the binder, the entanglement is too strong which affects the condensation force and fluidity, resulting in poor fluidity. It is necessary to increase the amount of . Therefore, it takes a long time to remove the binder.
本発明の技術課題は、これらの欠点を除去するため焼結
体を製造する方法において金属粉末または合金粉末をカ
スアＦ・マイズ粉末と液体アトマイズ粉末との混合粉末
を使用したもので、変形、酸化のない高密度、高特性の
焼結体を得る焼結金属の製造方法を提供することにある
。The technical problem of the present invention is to solve the above drawbacks by using a mixed powder of Kasua F. Mize powder and liquid atomized powder as a metal powder or alloy powder in a method for manufacturing a sintered body, which does not cause deformation or oxidation. It is an object of the present invention to provide a method for producing a sintered metal that obtains a sintered body with high density and high properties without any problems.
［課題を解決するだめの手段］
本発明によれば、金属又は合金よりなる粉末と熱可塑性
ポリマーを含むバインダとを混合した原料粉末を加圧成
形して成形し成形体を得る加圧成形工程と、」−記載形
体を脱脂して脱脂体を得る脱脂工程と、」−記脱脂体を
焼結して焼結体を得る焼結工程とを有する焼結金属の製
造方法において、上記金属又は合金よりなる粉末は、ガ
スアｊ・マイズ法により作製された粉末と液体７゛（・
マイズ法により作製された粉末との混合物よりなること
を特徴とする焼結金属の製造方法が得られる。[Means for Solving the Problems] According to the present invention, there is a pressure forming step in which a raw material powder, which is a mixture of a powder made of a metal or an alloy and a binder containing a thermoplastic polymer, is press-molded to form a compact. A method for manufacturing a sintered metal comprising: ``- a degreasing step of degreasing the described shape to obtain a degreased body, and ``- a sintering step of sintering the degreased body to obtain a sintered body, wherein the metal or The powder made of the alloy is a mixture of the powder made by the gas amizing method and the liquid 7゛(・
A method for producing a sintered metal characterized by comprising a mixture with a powder produced by the Mize method is obtained.
ここで一般に焼結体を製造する方法においては、金属お
よび合金粉末を使用する際、カスア１−マイス粉末又は
液体ア１〜マイス扮末を単独て用いると、それぞれの粉
末には短所があり、焼結体を製造した時に、変形、酸化
、！１′７性劣化等の問題点を生ずる。この１７ｔ１題
点を解決する方策として本発明はカスアｌ〜マイス粉末
と液体ア１−マイズ粉末のそれぞれの長所を生かし、ま
た短所を取り除くなめに両者を混合して用いるものであ
る。In general, in the method of manufacturing sintered bodies, when using metal and alloy powders, if Kasua 1-Mice powder or liquid A1-Mice powder is used alone, each powder has disadvantages. When producing a sintered body, deformation, oxidation,! This causes problems such as deterioration of the 1'7 property. As a measure to solve this 17t1 problem, the present invention utilizes the respective advantages of cast alumite powder and liquid alumite powder, and uses a mixture of the two in order to eliminate their disadvantages.
ガスアトマイズ粉末を使用した時の長所として粉末状態
の時に、製造方法に起因し、０含有量が少ない。また、
球状であるため、バインダと配合した際に流動性がよく
、バインダの配合比が少なくて済み、バインダ除去が比
較的容易である。An advantage of using gas atomized powder is that when it is in powder form, it has less zero content due to the manufacturing method. Also,
Since it is spherical, it has good fluidity when mixed with a binder, requires a small blending ratio of binder, and is relatively easy to remove.
一方、液体ア１ヘマイズ粉末を使用した時の長所として
平均粒径か小さく異形状なため、粒間時のからみ合いか
あり、脱脂の際のふくれ及び変形等を防ぐ。なお、混合
比は重量配合量を用い、ガスアトマイズ粉末の配合比を
大きくしすき′ると脱脂時の変形が大きくなり、また液
体アトマイズ粉末の配合比を大きくしすぎると脱脂後の
不純物含有量が多くなるなめ、カスア１〜マイス粉末：
液体ア１ヘマイズー９：１〜１：９の範囲内の重量比に
するのが好ましい。又用いるバインダ量が余りに多過ぎ
ると脱脂に長時間を要するとともに膨れ、変形等も生じ
易くなり、反対に余りに少な過き゛ると成形が出来なく
なる。従って金属及び又は合金粉末の配合比として７０
〜９９Ｗ１％とする事が好ましい。On the other hand, the advantage of using liquid ahemize powder is that the average particle size is small and irregularly shaped, so there is entanglement between particles, which prevents blistering and deformation during degreasing. For the mixing ratio, use the amount by weight. If the mixing ratio of the gas atomized powder is increased, the deformation during degreasing will increase, and if the mixing ratio of the liquid atomized powder is too large, the impurity content after degreasing will increase. Increased number of licks, Kasua 1 ~ Mice powder:
Preferably, the weight ratio is within the range of 9:1 to 1:9. Furthermore, if the amount of binder used is too large, degreasing takes a long time and swelling and deformation are likely to occur.On the other hand, if the amount of binder used is too small, molding becomes impossible. Therefore, the blending ratio of metal and/or alloy powder is 70
It is preferable to set it to 99W1%.
＝ ５−
一 ４ −
原料粉末に配合される金属又は合金としては、それぞれ
か、カス７１〜マイズ法及び’＞＆ｆ水アトマイス法て
作製ができる金属又は合金であり、Ｆｅ−Ｃ０合金、Ｆ
ｅ−Ｎ ｉ合金、５ＵＳ３０４、Ｎｉ−Ｍｏ、Ｃｒ−
Ｍｏ、Ｆｅ−Ｎｉ−Ｃｒ、Ｎ１−Ｃｒ、Ｎ１−Ａｊ 、
Ｆｅ、Ｆｅ−Ａｊ−３ｉ、Ｃｕ合金、Ｆｅ−Ｍｏ−Ｎｉ
等が挙げられ乙。= 5-1 4- The metals or alloys blended into the raw material powder are metals or alloys that can be produced by the Kas71-Mize method and the '>&f water atomize method, such as Fe-C0 alloy, F
e-Ni alloy, 5US304, Ni-Mo, Cr-
Mo, Fe-Ni-Cr, N1-Cr, N1-Aj,
Fe, Fe-Aj-3i, Cu alloy, Fe-Mo-Ni
etc. are mentioned.
以上述べてきたことから、本発明は、それぞれの長所を
生かし、それぞれの短所を取り除き、酸化の少ない粉末
を用い、また、流動性を良くすることでバインダ量を減
らし、脱脂を容易にし、変形をなくし、そして焼結密度
を」１昇させて良好な緒特性が得られる焼結体を製造し
ようというものである。Based on the above, the present invention makes use of the advantages of each, eliminates the disadvantages of each, uses powder with low oxidation, improves fluidity, reduces the amount of binder, facilitates degreasing, and deforms. The aim is to eliminate this and increase the sintered density by 1 to produce a sintered body with good properties.
［実施例］
次に本発明の実施例を示し説明する６
実施例−１
本発明の実施例１に係る焼結金属の製造方法について説
明する。第１表は本発明の製造方法の実施するなめに用
いなＦｅＦｅ−５０Ｃｏ（％）から６−一
なる金属粉末の粉体特性を示している。この表にしめさ
れたカスアｌ〜マイズ粉木と液体ア１ヘマイス粉末とを
乾式混合後、これにポリマーを主成分とするバインダと
第２表に示す配合比に秤量したものを、混合、混練、粉
砕して流れの度合いを示すＭ、１．値（メルト・インデ
ックス値）の測定を行った。１つの目安として４０前後
か射出成形可能であり、単位はｇ／１０ｔｈｉｎ、であ
る。その後、外径φ４Ｏｎ＋ｍｘ内径φ３０ｍｍｘ厚さ
ｔ５ｍ川のリンクに射出成形し脱脂を行った。カスアト
マイズ粉末のみの脱脂体はふくれが発生し大きく変形し
た。[Example] Next, Examples of the present invention will be shown and explained. 6 Example-1 A method for manufacturing a sintered metal according to Example 1 of the present invention will be described. Table 1 shows the powder properties of FeFe-50Co (%) to 6-1 metal powders used to carry out the manufacturing method of the present invention. After dry mixing the Kasua l to maize powder shown in this table and the liquid ahemais powder, this was mixed with a binder whose main component was a polymer and weighed at the blending ratio shown in Table 2, and then mixed and kneaded. , M, which shows the degree of flow by crushing, 1. The value (melt index value) was measured. As a guideline, injection molding is possible at around 40, and the unit is g/10thin. Thereafter, it was injection molded into a link having an outer diameter of φ4 On+mx an inner diameter of φ30 mm and a thickness of t5 m, and was degreased. The degreased body containing only the Kasu atomized powder blistered and was significantly deformed.
その他の脱脂体は良好であった。しかし、その不純物含
有板を測定した結果、水アトマイズ粉末が１００％の場
合、多量の酸素および炭素が含まれていた。一方、カス
アトマイズ粉末と液体ア１ヘマイス粉末とを含む混合粉
末より成る脱脂体は、それに比較して良好であった。Other degreased products were in good condition. However, as a result of measuring the impurity-containing plate, it was found that when the water atomized powder was 100%, it contained a large amount of oxygen and carbon. On the other hand, the degreased body made of a mixed powder containing Kas atomized powder and liquid ahemite powder was better in comparison.
その後、焼結を行い密度の測定を行ったが、相対密度で
混合粉末を用いた焼結体が高密度で良好であった。次に
、焼結体の磁気特性を評価した所、印加磁場１．０ＯＯ
ｅにおける磁束密度はカスア１〜マイス粉末：液体アト
マイズ−９＝１〜１−：９の範囲内の重量比で２０ ’
ｉ−Ｉニアガウスを越える高い値を示し、又溶解ｖｊ造
品の値に対して焼結体の相対密度に対応した値が招−ら
れることが確認された。After that, sintering was performed and the density was measured, and the relative density of the sintered body using the mixed powder was found to be high and good. Next, when the magnetic properties of the sintered body were evaluated, the applied magnetic field was 1.0OO
The magnetic flux density at e is 20' at a weight ratio within the range of Kasua 1 to Mice powder:Liquid atomize-9=1 to 1-:9.
It was confirmed that a high value exceeding the i-I near Gauss was exhibited, and a value corresponding to the relative density of the sintered body was induced compared to the value of the molten VJ product.
実施例−２
本発明の実施例２に係る焼結金属の製造方法について説
明する。実施例１と同様な方法によってＳＵＳ ３１
６１−合金粉末を用いて射出成形を行なった。なおその
除用いた金型は脱脂および焼結時の収縮率をあらかじめ
考慮した上で設計されなＪ Ｉ Ｓ規格６号引張試験片
の形状とした。Example 2 A method for manufacturing sintered metal according to Example 2 of the present invention will be described. SUS 31 by the same method as in Example 1
Injection molding was performed using 61-alloy powder. The mold used was in the shape of a JIS standard No. 6 tensile test piece, which was not designed with consideration given to the shrinkage rate during degreasing and sintering.
第４表は実施例２にｒ系る成形体の脱脂及び焼結を行な
った後の焼結密度及び引張試験の結果を示し、併せて比
較例として金属又は合金粉末としてカスアｌ−マイス粉
末のみを含む原料及び水ア１〜マイス粉末のみを含む原
料よりなる焼結体の試験の結果も記入しな。第４表より
、実施例では高密度で且つ極めて優れた引張強さおよび
伸びを示ず焼結体が得られ、製造方法の有効性が確認出
来た。Table 4 shows the sintered density and tensile test results after degreasing and sintering the R-based molded body in Example 2, and also shows the results of the tensile test and the sintered density after degreasing and sintering the R-based molded body in Example 2. In addition, as a comparative example, only Casual Mice powder was used as the metal or alloy powder. Please also enter the test results for a sintered body made of a raw material containing water A1 to a raw material containing only Mice powder. From Table 4, in the examples, sintered bodies with high density and extremely excellent tensile strength and no elongation were obtained, confirming the effectiveness of the manufacturing method.
＝ ９ −一
＝ １２ 〜
［発明の効果］
以上述べたように、本発明の焼結金属の製造方法に因れ
ば、金属または合金粉末にカスアトマイズ粉末と液体ア
トマイズ粉末の混合粉を使用し、それを熱可塑性ポリマ
ーを主成分とするバインダと混練することにより射出成
形性、押出し成形性、または圧縮成形性等の優れたもの
を得ることができる。= 9 - 1 = 12 ~ [Effects of the Invention] As described above, according to the method for producing sintered metal of the present invention, a mixed powder of custom atomized powder and liquid atomized powder is used as the metal or alloy powder. By kneading it with a binder whose main component is a thermoplastic polymer, it is possible to obtain products with excellent injection moldability, extrusion moldability, or compression moldability.
更に、本発明の焼結金属の製造方法によれば、金属又は
合金粉末の流動性が良いためバインタ量を減らすことが
でき、それにより脱脂が容易になり、ふくれ変形を生じ
なくなる。したがって、高密度で良好な焼結体を得るこ
とができる。Furthermore, according to the method for producing sintered metal of the present invention, the amount of binder can be reduced because the metal or alloy powder has good fluidity, which facilitates degreasing and prevents bulge deformation. Therefore, a high density and good quality sintered body can be obtained.
手続補正書（自発）
平成１年２月３０
特許庁長官 吉 １）文 毅 殿
１、事件の表示
昭和６３年特許願第１４９９４８号
２、発明の名称
焼結金属の製造方法
３、補正をする者
事件との関係 特許出願人
名 称 東北金属工業株式会社
４、代理人 〒１０５
住 所 東京都港区西新橋１丁１゛Ｊ４番１０号第三
森ビル ＴＥＩ、０３−５９１−１５２３・１５０７氏
名 （５８４１）弁理士 芦 １） 坦（ほか２名）
５、補正の対象
＼−ノ
６、補正の内容
イ、明細書の発明の詳細な説明の欄のｈ己載の一部を次
のように補正します。Procedural amendment (voluntary) February 30, 1999 Director General of the Japan Patent Office Yoshi 1) Tsuyoshi Moon 1, Indication of the case Patent Application No. 149948 of 1988 2, Name of the invention Process for manufacturing sintered metal 3, Amendments made Patent applicant name: Tohoku Kinzoku Kogyo Co., Ltd. 4, agent: 105 Address: Daisan Mori Building, J4-10, 1-1 Nishi-Shinbashi, Minato-ku, Tokyo TEI, 03-591-1523-1507 Name (5841) Patent Attorney Ashi 1) Tan (and 2 others) 5. Subject of amendment \-no 6. Contents of amendment a. Part of what he wrote in the detailed explanation column of the invention in the specification is as follows: Correct it as follows.
１）明細書の第２頁第５行「加−Ｌ成形」を「カロ圧成
形」に訂正する。1) In the 5th line of page 2 of the specification, "Add-L molding" is corrected to "Calo pressure molding".
２）明細書の第６頁第７行「挙げられる。」の後に、成
文を挿入する。2) Insert a written sentence after the 7th line of the 6th page of the specification, ``Listed.''
「尚、本発明において、加圧成形と（よ、射出成形、押
出成形、及び圧縮成形等の圧力を加えな力Ａら１１う成
形方法をいう。」
手続補正書（自発）
平成７年２月２３日
特許庁長官 吉 ロコ 文 毅 殿
１、事件の表示
昭和６３年特許願第１４９９４８号
２、発明の名称
焼結金属の製造方法
３、補正をする者
事件との関係 特 許 出 願 人名 称
東北金属工業株式会社４、代理人 〒１０５
住 所 東京都港区西新橋１丁目４番１０号５、補正
の対象
イ、明細書の発明の詳細な説明の欄
６、補正の内容
イ、明細町の発明の詳細な説明の欄の記載の一部を次の
様に補正する。"In the present invention, pressure molding refers to molding methods that do not apply pressure, such as injection molding, extrusion molding, and compression molding." Procedural amendment (voluntary) 1995 2 February 23rd, Commissioner of the Japan Patent Office Yoshi Roco Fumi Takeshi 1, Indication of the case, Patent Application No. 149948, filed in 1988, 2, Name of the invention, Process for manufacturing sintered metal 3, Person making the amendment, Relationship with the case Patent application Name of the person name
Tohoku Kinzoku Kogyo Co., Ltd. 4, Agent 105 Address 1-4-10-5 Nishi-Shinbashi, Minato-ku, Tokyo, Subject of amendment (i), Detailed explanation of the invention in the specification column 6, Contents of amendment (i), Specification A part of the statement in the column of detailed explanation of the town's invention is amended as follows.
■）明細書の第２頁第１９行［流動性及び凝集性に影響
する」を削除する。■) Delete page 2, line 19 of the specification [affects fluidity and cohesion].
Claims (1)
むバインダとを混合した原料粉末を加圧成形して成形体
を得る加圧成形工程と、上記成形体を脱脂して脱脂体を
得る脱脂工程と、上記脱脂体を焼結して焼結体を得る焼
結工程とを有する焼結金属の製造方法において、 上記金属又は合金よりなる粉末は、ガスアトマイズ法に
より作製された粉末と、液体アトマイズ法により作製さ
れた粉末との混合物よりなることを特徴とする焼結金属
の製造方法。[Scope of Claims] 1. A pressure molding process for obtaining a compact by pressure-molding a raw material powder obtained by mixing a powder made of a metal or an alloy with a binder containing a thermoplastic polymer, and a process for degreasing the compact by degreasing the compact. In the method for producing a sintered metal, the method includes a degreasing step to obtain a body, and a sintering step to obtain a sintered body by sintering the degreased body, wherein the powder made of the metal or alloy is a powder produced by a gas atomization method. and a powder produced by a liquid atomization method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63149948A JPH01319601A (en) | 1988-06-20 | 1988-06-20 | Production of sintering metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63149948A JPH01319601A (en) | 1988-06-20 | 1988-06-20 | Production of sintering metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01319601A true JPH01319601A (en) | 1989-12-25 |
Family
ID=15486083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63149948A Pending JPH01319601A (en) | 1988-06-20 | 1988-06-20 | Production of sintering metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01319601A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04285102A (en) * | 1991-03-14 | 1992-10-09 | Fujitsu Ltd | Production of sintered body |
| CN105950947A (en) * | 2016-07-06 | 2016-09-21 | 浙江亚通焊材有限公司 | Iron-rich high-entropy alloy powder material for 3D printing and preparation method thereof |
| JP2019513900A (en) * | 2016-04-15 | 2019-05-30 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | Three-dimensional printing of cermet or cemented carbide |
-
1988
- 1988-06-20 JP JP63149948A patent/JPH01319601A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04285102A (en) * | 1991-03-14 | 1992-10-09 | Fujitsu Ltd | Production of sintered body |
| JP2019513900A (en) * | 2016-04-15 | 2019-05-30 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | Three-dimensional printing of cermet or cemented carbide |
| CN105950947A (en) * | 2016-07-06 | 2016-09-21 | 浙江亚通焊材有限公司 | Iron-rich high-entropy alloy powder material for 3D printing and preparation method thereof |
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