JPH0480963B2 - - Google Patents
Info
- Publication number
- JPH0480963B2 JPH0480963B2 JP6616185A JP6616185A JPH0480963B2 JP H0480963 B2 JPH0480963 B2 JP H0480963B2 JP 6616185 A JP6616185 A JP 6616185A JP 6616185 A JP6616185 A JP 6616185A JP H0480963 B2 JPH0480963 B2 JP H0480963B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- metal
- hole
- take
- perforated plate
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 68
- 238000000605 extraction Methods 0.000 claims description 36
- 238000002844 melting Methods 0.000 claims description 23
- 230000008018 melting Effects 0.000 claims description 23
- 239000002923 metal particle Substances 0.000 claims description 19
- 238000003860 storage Methods 0.000 claims description 12
- 239000000110 cooling liquid Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 35
- 229910052711 selenium Inorganic materials 0.000 description 35
- 239000011669 selenium Substances 0.000 description 35
- 239000002245 particle Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000011261 inert gas Substances 0.000 description 6
- 239000000155 melt Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004821 distillation Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、溶融金属から金属粒を製造する方法
および装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method and apparatus for producing metal grains from molten metal.
「従来の技術」
従来、溶融金属から金属粒を製造する方法とし
て、例えば、特開昭56−129604号公報において提
案されている。"Prior Art" Conventionally, a method for producing metal particles from molten metal has been proposed, for example, in Japanese Patent Application Laid-Open No. 129604/1983.
この技術は、セレン粒を製造する方法に関する
もので、溶解炉で溶融したセレンを蒸留器に導
き、この蒸留器から凝縮器を介して貯留槽にセレ
ンを導き、貯留槽から溢れた溶融セレンを回転ド
ラムに滴下して冷却し、粒状にして回収するもの
である。またこの公報には、貯留槽の抽出口から
液状セレンを抽出すると同時に抽出口の周囲から
不活性ガスを噴射することによつて粒状セレンを
得る方法も開示されている。 This technology relates to a method for producing selenium grains, in which selenium molten in a melting furnace is introduced into a distiller, selenium is introduced from the distiller into a storage tank via a condenser, and the molten selenium overflowing from the storage tank is removed. It is dropped onto a rotating drum, cooled, and collected as granules. This publication also discloses a method for obtaining granular selenium by extracting liquid selenium from an extraction port of a storage tank and at the same time injecting inert gas from around the extraction port.
「発明が解決しようとする問題点」
ところで、前記従来の技術に示された方法のう
ち、回転ドラムを用いる方法にあつては、貯留槽
から溢れて回転ドラムに滴下する溶融金属量が安
定せず、生成される金属粒の粒径が一定にならな
い上に、回転ドラムに溶融金属が落下するために
偏平状の金属粒が生成されてしまい、球状の金属
粒を得ることができず、更に、装置構成が複雑に
なる問題があつた。"Problems to be Solved by the Invention" By the way, among the methods shown in the above-mentioned conventional techniques, in the method using a rotating drum, the amount of molten metal overflowing from the storage tank and dripping onto the rotating drum is not stable. First, the particle size of the metal particles produced is not constant, and the molten metal falls onto the rotating drum, producing flat metal particles, making it impossible to obtain spherical metal particles. , there was a problem that the device configuration became complicated.
また、不活性ガスを噴射する方法にあつては、
不活性ガスの噴出部の構造が複雑になつて設備コ
ストが上昇し、ひいては金属粒の製造コストが高
騰することになるとともに、不活性ガスの流速の
乱れがそのまま金属粒径の大小に影響するため
に、得られる金属粒の粒径が不均一になりやすい
という問題があつた。 In addition, regarding the method of injecting inert gas,
The structure of the inert gas ejection part becomes complicated, which increases the equipment cost, which in turn increases the manufacturing cost of metal particles, and the disturbance in the flow velocity of the inert gas directly affects the size of the metal particles. Therefore, there was a problem that the particle size of the obtained metal particles tends to be non-uniform.
「発明の目的」
本発明は、前記事情に鑑みてなされたもので、
複雑な操作を行わなくとも粒径の揃つた金属粒を
溶融金属から得ることができる方法の提供と、構
造が簡単で、かつ、粒径の均一な金属粒を低価格
で製造できる装置の提供を目的とする。"Object of the invention" The present invention has been made in view of the above circumstances, and
To provide a method for obtaining metal particles of uniform particle size from molten metal without performing complicated operations, and to provide an apparatus that has a simple structure and can produce metal particles of uniform particle size at a low cost. With the goal.
「問題点を解決するための手段」
本発明の方法は、溶融金属を貯留した溶解炉の
底部に設けた取出孔に調整ロツドを遊挿し、この
調整ロツドと取出孔との間の間隙を溶融炉内の溶
融金属を凝固させた凝固金属で塞いでおき、必要
に応じて取出孔内の凝固金属をヒータにより溶融
させることにより、この溶融金属を前記隙間から
その下方に配置されている目皿内に落下させ、つ
いで、この目皿内の溶融金属を目皿に形成されて
いる孔から、冷却液中に滴下させて凝固させるも
のである。``Means for Solving the Problems'' The method of the present invention involves loosely inserting an adjustment rod into a take-out hole provided at the bottom of a melting furnace in which molten metal is stored, and melting the gap between the adjusting rod and the take-out hole. The molten metal in the furnace is blocked with solidified metal, and if necessary, the solidified metal in the extraction hole is melted by a heater, so that the molten metal is passed through the gap into the perforated plate disposed below. The molten metal in the perforated plate is then dropped into the cooling liquid through holes formed in the perforated plate to solidify.
本発明の装置は、底部に取出孔を有し、溶融金
属を貯留する溶融炉と、前記取出孔内に挿通され
て、この取出孔の内周面との間に溶融金属を通過
させるための間隙を形成する調整ロツドと、前記
取出孔の周囲に設けられて取出孔内の溶融金属の
凝固と溶融を制御するヒータと、前記取出孔の下
方に配置され、前記調整ロツドを支持する支持部
材と、この支持部材の下方に設置され、前記溶融
金属が前記取出孔から落下させられるとともに、
前記溶融金属が滴下させられる孔が形成された目
皿と、この目皿の下方に配置され、冷却液によつ
て満たされるとともに、前記目皿の孔から滴下さ
れた溶融金属が落下させられることにより、この
溶融金属を凝固させる貯液槽とから構成したもの
である。 The apparatus of the present invention has a take-out hole at the bottom and is for passing molten metal between a melting furnace for storing molten metal and an inner circumferential surface of the take-out hole that is inserted into the take-out hole. an adjustment rod that forms a gap; a heater that is provided around the extraction hole to control solidification and melting of the molten metal in the extraction hole; and a support member that is disposed below the extraction hole and supports the adjustment rod. is installed below the support member, and the molten metal is allowed to fall from the extraction hole,
A perforated plate having holes formed therein through which the molten metal is dropped; and a perforated plate disposed below the perforated plate, filled with a cooling liquid, and allowing the molten metal dropped from the holes of the perforated plate to fall. and a liquid storage tank for solidifying this molten metal.
「作用」
本発明にあつては、取出孔に遊挿した調整ロツ
ドと取出孔の内周面との間の間隙を塞いだ凝固金
属をヒータによつて溶解するために、この間隙を
塞いだ薄い凝固金属はヒータの発生させる熱によ
つて速やかに溶融され取出孔で詰まることなく流
出するとともに、狭い間隙からの流出のために溶
融金属の流出量が安定化し、目皿を介しての冷却
液への落下により球状の金属粒が形成される。"Function" In the present invention, in order to use a heater to melt the solidified metal that has closed the gap between the adjustment rod loosely inserted into the take-out hole and the inner peripheral surface of the take-out hole, this gap is closed. The thin solidified metal is quickly melted by the heat generated by the heater and flows out of the extraction hole without clogging, and the amount of molten metal that flows out is stabilized because it flows out through the narrow gap, allowing cooling through the perforated plate. Spherical metal particles are formed by falling into the liquid.
「実施例」
第１図ないし第３図は、本発明の実施に使用す
る装置の一例を示すもので、第１図は溶融金属の
貯留状態を示し、第２図と第３図は金属粒の製造
状態を示すためのものである。``Example'' Figures 1 to 3 show an example of an apparatus used to carry out the present invention. Figure 1 shows a storage state of molten metal, and Figures 2 and 3 show metal particles This is to show the manufacturing status of.
第１図に示す１は、内部を真空に保持可能なケ
ーシングを示し、このケーシング１の中にはコン
デンサー４を介して連結された蒸留炉２と溶融炉
３が設けられている。 Reference numeral 1 shown in FIG. 1 indicates a casing that can maintain a vacuum inside, and a distillation furnace 2 and a melting furnace 3 connected to each other via a condenser 4 are provided inside the casing 1.
また、前記溶融炉３の底部中央にはケーシング
１の底壁を貫通した筒状の取出孔３ａが形成され
ている。 Furthermore, a cylindrical extraction hole 3a is formed in the center of the bottom of the melting furnace 3, passing through the bottom wall of the casing 1.
この取出孔３ａの内部には溶融炉３の内部とケ
ーシング１の外部に開口する取出孔３ｂが形成さ
れ、前記取出口３ａの外周にはヒータ３ｃが設け
られ、取出部３ａの下端にはフランジ部３ｄが形
成されている。 A take-out hole 3b that opens to the inside of the melting furnace 3 and the outside of the casing 1 is formed inside the take-out hole 3a, a heater 3c is provided on the outer periphery of the take-out port 3a, and a flange is provided at the lower end of the take-out part 3a. A portion 3d is formed.
そして前記取出孔３ｂの下端の開口部はＯリン
グ４を介して蓋体５によつて閉じられ、取出孔３
ｂの中には調整ロツド６が挿入されている。 The opening at the lower end of the extraction hole 3b is closed by a lid 5 via an O-ring 4, and the extraction hole 3
An adjustment rod 6 is inserted into b.
この調整ロツド６は、上部が円錘状をなし、下
部が円柱状をなすもので、適用する金属の融点よ
りも高い融点を有し、かつ、この金属におかされ
ない金属やセラミツクス等の材料で形成され、下
部の直径は前記取出孔３ｂの内径よりも若干小さ
く設定され、調整ロツド６と取出孔３ｂの内周面
との間には筒状の間隙が形成されるようになつて
いる。 The adjustment rod 6 has a conical upper part and a cylindrical lower part, and is made of a material such as metal or ceramics that has a melting point higher than the melting point of the metal to which it is applied and is not affected by the metal. The diameter of the lower part is set to be slightly smaller than the inner diameter of the extraction hole 3b, so that a cylindrical gap is formed between the adjustment rod 6 and the inner peripheral surface of the extraction hole 3b.
第２図と第３図に示す８は、前記ケーシング１
の外に出された取出部３ａにこの取出部３ａを囲
んで接続された気密ケースを示している。 8 shown in FIGS. 2 and 3 is the casing 1
An airtight case is shown surrounding and connected to the take-out part 3a taken out from the outside.
この気密ケース８は吸入口８ａと排気口８ｂと
を有し、内部を不活性ガス雰囲気に保つことがで
きるようになつていて、気密ケース８の中には、
支持部材９と目皿１０と貯液槽１１とが、前記取
出孔３ｂの軸線方向に沿うように鉛直方向に間隔
をおいて設けられている。 This airtight case 8 has an inlet port 8a and an exhaust port 8b, and is designed to maintain an inert gas atmosphere inside the airtight case 8.
A support member 9, a perforated plate 10, and a liquid storage tank 11 are provided at intervals in the vertical direction along the axial direction of the extraction hole 3b.
前記支持部材９は、前記取出孔３ｂの内周面と
調整ロツド６との間の間隙内の凝固金属が溶融さ
れて前記調整ロツドが自重により下方へ移動させ
られた際に、この調整ロツド６を受けとめる受け
皿９ａとこの受け皿９ａの側部に取り付けられ、
気密ケース８の側部を貫通した支持ロツド９ｂと
からなり、支持ロツド９ｂは気密ケース８の外部
からこれを操作して受け皿９ａを上下できるよう
になつている。 The support member 9 supports the adjustment rod 6 when the solidified metal in the gap between the inner peripheral surface of the extraction hole 3b and the adjustment rod 6 is melted and the adjustment rod is moved downward by its own weight. A saucer 9a for receiving the water and a tray 9a attached to the side of the saucer 9a,
The support rod 9b penetrates the side of the airtight case 8, and the support rod 9b can be operated from the outside of the airtight case 8 to raise and lower the saucer 9a.
前記目皿１０は底部に所定大の透孔１０ａが多
数形成され、前記取出部３ａの下に設けられたも
ので、目皿１０の周囲にはヒータ１０ｂが設けら
れている。 The perforated plate 10 has a large number of through holes 10a of a predetermined size formed in the bottom thereof, and is provided below the take-out portion 3a, and a heater 10b is provided around the perforated plate 10.
また、前記貯液槽１１は、前記目皿１０の下に
設けられたもので、水あるいは純水等の冷却液１
１ａが満たされている。 The liquid storage tank 11 is provided below the perforated plate 10, and is filled with a cooling liquid such as water or pure water.
1a is satisfied.
次に、前記装置を用いてセレン粒を製造する場
合について説明する。 Next, a case will be described in which selenium grains are manufactured using the above-mentioned apparatus.
溶融炉３の内部には、蒸留炉２から供給された
溶融セレンが貯留されている。この状態では、溶
融炉３の底部のヒータ３ｃへの通電は停止してお
き、取出部３ａ内の溶融セレンを凝固させて凝固
セレンによつて取出部３ａを閉じておく。 Molten selenium supplied from the distillation furnace 2 is stored inside the melting furnace 3. In this state, the power supply to the heater 3c at the bottom of the melting furnace 3 is stopped, the molten selenium in the take-out part 3a is solidified, and the take-out part 3a is closed by the solidified selenium.
この状態から、セレン粒を製造するには、ま
ず、蓋板５とＯリング６を取り外す。 In order to manufacture selenium grains from this state, first, the cover plate 5 and the O-ring 6 are removed.
この後に、ヒータ３ｃに通電して取出部３ａの
内部の凝固セレンを溶融する。 Thereafter, the heater 3c is energized to melt the solidified selenium inside the extraction portion 3a.
ここで、取出部３ａ内の凝固セレンは調整ロツ
ド６と取出孔３ｂの内面との間のわずかの間隙に
存在し、薄いために、ヒータ３ｃが発生させる熱
によつて速やかに溶融する。 Here, the solidified selenium in the extraction portion 3a exists in a small gap between the adjustment rod 6 and the inner surface of the extraction hole 3b, and since it is thin, it is quickly melted by the heat generated by the heater 3c.
この点、調整ロツド６が無い場合には取出部３
ａ内の凝固セレンの外周部が溶融した階段で凝固
セレンは取出部３ａから塊状となつて落下してし
まうことになり、溶融セレンの流出量が不安定に
なるために好ましくない。 In this regard, if there is no adjustment rod 6,
At the step where the outer circumferential portion of the solidified selenium in a is melted, the solidified selenium falls from the take-out part 3a in the form of a lump, which is not preferable because the amount of molten selenium flowing out becomes unstable.
そして、前記凝固セレンの溶融によつて調整ロ
ツド６はその自重により取出部３ａから下降して
自動的に受け皿９ａの上に載る。 Then, as the solidified selenium melts, the adjusting rod 6 descends from the take-out portion 3a due to its own weight and automatically rests on the receiving tray 9a.
この後に支持ロツド９ｂを操作して若干受け皿
９ａを下に移動させる。この状態でヒータ３ｃへ
の通電を続行すると、溶融セレンは取出部３ｃの
下端から調整ロツド６の外面を伝わつて受け皿９
ａに落ちる。この際、溶融セレンは調整ロツド６
と取出孔３ｂの間の間隙を通過しつつヒータ３ｃ
により過熱されて完全な溶融状態で落下するため
に間隙で詰まることもなく、その落下量は安定す
る。そして、受け皿９ａから溢れ出た溶融セレン
が目皿１０に落下する。 After this, the support rod 9b is operated to move the tray 9a slightly downward. If the heater 3c continues to be energized in this state, the molten selenium will be transmitted from the lower end of the take-out portion 3c to the outer surface of the adjustment rod 6 and into the receiving tray 9.
falls on a. At this time, the molten selenium is
The heater 3c passes through the gap between the
Because it is overheated by the metal and falls in a completely molten state, it does not get clogged in the gap and the amount of falling is stable. Then, the molten selenium overflowing from the tray 9a falls into the perforated tray 10.
一方、前記目皿１０に落下した溶融セレンは目
皿１０の透孔１０ａから貯液槽１１へ向けて滴下
させられるが、この貯液槽１１に至る間に表面張
力により球状となり、前記貯液槽１１の冷却液１
１ａ中に落下させられることによつて冷却されて
凝固し球状のセレンとなる。 On the other hand, the molten selenium that has fallen into the perforated plate 10 is dripped from the through hole 10a of the perforated plate 10 toward the liquid storage tank 11, but while reaching the liquid storage tank 11, it becomes spherical due to surface tension, and the stored liquid Coolant 1 in tank 11
By falling into 1a, it is cooled and solidified to become spherical selenium.
ここで、目皿１０に落下する溶融セレン量が一
定のために、目皿１０の透孔１０ａから冷却液１
１ａ中に滴下する溶融セレン粒の粒径も安定化
し、これによつて大きさの揃つたしかも球状のセ
レン粒を得ることができるのである。 Here, since the amount of molten selenium falling into the perforated plate 10 is constant, the cooling liquid 1
The particle size of the molten selenium particles dropped into 1a is also stabilized, thereby making it possible to obtain spherical selenium particles of uniform size.
なお、受け皿９ａから目皿１０に落下させる溶
融セレンの量を大きくするならば、目皿１０から
冷却液１１ａに落下して形成されるセレン粒は大
きくなり、反対に落下セレンの量を少なくすれ
ば、形成されるセレン粒は小さくなる。 Note that if the amount of molten selenium dropped from the receiving tray 9a to the perforated plate 10 is increased, the selenium grains formed by falling from the perforated plate 10 to the cooling liquid 11a will become larger; on the other hand, if the amount of falling selenium is decreased, For example, the selenium grains formed become smaller.
したがつて、直径の異なる多種類の調整ロツド
６を用意して、調整ロツド６と取出孔３ｂとの間
隔を適宜調整するようにして、要求されるセレン
粒の大きさに合わせた調整ロツド６を使用するこ
とによつて、種々の大きさのセレン粒を製造でき
る。 Therefore, by preparing many types of adjusting rods 6 with different diameters and adjusting the distance between the adjusting rod 6 and the extraction hole 3b as appropriate, the adjusting rod 6 can be adjusted to match the required size of selenium grains. By using this, selenium grains of various sizes can be produced.
あるいは、支持部材９によつて調整ロツド６位
置をその長さ方向に調整して、その上部の円錐部
を取出孔３ｂの開口端部に位置させることによ
り、この開口端部における取出孔３ｂと調整ロツ
ド６との隙間量を調整することによつても、前記
溶融セレンの落下量を調整することも可能であ
る。 Alternatively, by adjusting the position of the adjustment rod 6 in the length direction using the support member 9 and positioning the upper conical part at the open end of the ejection hole 3b, the ejection hole 3b at the open end can be adjusted. It is also possible to adjust the falling amount of the molten selenium by adjusting the amount of clearance between the rod and the adjusting rod 6.
ところで、前記装置は構造的に複雑な部分が無
いために設備コストも安くてすみ、このためにセ
レン粒のコストダウスもなしうる。 By the way, since the device has no structurally complicated parts, the equipment cost is low, and therefore the cost of selenium grains can be reduced.
また、以上の各工程は全て不活性ガス雰囲気に
おいてなされるために、得られたセレン粒に酸素
等の不純物が混入することも無く、純粋なセレン
粒を製造できる。 In addition, since all of the above steps are performed in an inert gas atmosphere, pure selenium grains can be produced without contaminating the obtained selenium grains with impurities such as oxygen.
なおまた、前記実施例においては適用する金属
がテルルである場合について説明したが、これに
限られるものではなく、適用する金属は適宜任意
に設定することができるものである。さらに、調
整ロツド６は図に示した形状に限るものではな
く、円筒状でもよく、また、前記実施例において
は上下動自在な構成について例示したが、必ずし
も上下動させるような構成とする必要はなく、要
は、取出孔３ｂの内周面との間に、溶融金属が通
過し得るような、また、加熱時に、凝固状態にあ
る金属が速やかに溶融し得るような間隙を形成す
る構成であればよい。 Furthermore, in the above embodiments, the case where the applied metal is tellurium has been described, but the present invention is not limited to this, and the applied metal can be arbitrarily set as appropriate. Further, the adjustment rod 6 is not limited to the shape shown in the figure, but may be cylindrical.Also, in the above embodiment, a configuration in which it can freely move up and down has been illustrated, but it is not necessarily necessary to have a configuration in which it can move up and down. The point is that a gap is formed between the inner circumferential surface of the extraction hole 3b through which molten metal can pass, and through which metal in a solidified state can quickly melt when heated. Good to have.
「発明の効果」
以上説明したように本発明は、溶融金属を貯留
した溶融炉の底部に設けた取出孔に調整ロツドを
遊挿し、この調整ロツドと取出孔との間の間隙を
溶融炉内の溶融金属を凝固させた凝固金属で塞い
でおき、必要に応じて取出孔内の凝固金属をヒー
タにより溶融させることにより、この溶融金属を
前記隙間からその下方に配置されている目皿内に
落下させ、ついで、この目皿内の溶融金属を目皿
に形成されている孔から、冷却液中に滴下させて
凝固させることにより金属粒を製造するものであ
り、調整ロツドと取出孔の内周壁の間の間隙にお
いてヒータによつて完全に溶融された溶融金属が
流出するために、正確な量の溶融金属を目皿を介
して冷却液に落下させることができ、したがつ
て、粒径の揃つた球状の金属粒を得ることができ
る。また、取出孔に挿入した調整ロツドと取出孔
の内周面との間の間隙から溶融金属を流出させる
ために、ヒータが発生させる熱はこの薄い間隙に
ある凝固金属を即座に溶融させて目詰まりをおこ
すことなく溶融金属を速やかに流出させて金属粒
を製造できる。``Effects of the Invention'' As explained above, the present invention allows the adjustment rod to be loosely inserted into the extraction hole provided at the bottom of the melting furnace in which molten metal is stored, and the gap between the adjustment rod and the extraction hole to be removed from the melting furnace. By blocking the molten metal in the extraction hole with solidified metal, and melting the solidified metal in the extraction hole with a heater as necessary, the molten metal is poured from the gap into the perforated plate located below. The molten metal in the perforated plate is then dropped into the cooling liquid through the hole formed in the perforated plate and solidified to produce metal particles. Because the molten metal completely melted by the heater flows out in the gap between the peripheral walls, a precise amount of molten metal can fall through the perforated plate into the cooling liquid, thus reducing the particle size. It is possible to obtain uniformly spherical metal particles. In addition, in order to cause the molten metal to flow out from the gap between the adjustment rod inserted into the extraction hole and the inner peripheral surface of the extraction hole, the heat generated by the heater immediately melts the solidified metal in this thin gap. Metal grains can be produced by quickly flowing out molten metal without causing clogging.
また、本発明の装置は、底部に取出孔を有し、
溶融金属を貯留する溶融炉と、前記取出孔内に挿
通されて、この取出孔の内周面との間に溶融金属
を通過させるための間隙を形成する調整ロツド
と、前記取出孔の周囲に設けられて取出孔内の溶
融金属の凝固と溶融を制御するヒータと、前記取
出孔の下方に配置され、前記調整ロツドを支持す
る支持部材と、この支持部材の下方に設置され、
前記溶融金属が前記取出孔から落下させられると
ともに、前記溶融金属が滴下させられる孔が形成
された目皿と、この目皿の下方に配置され、冷却
液によつて満たされるとともに、前記目皿の孔か
ら滴下された溶融金属が落下させられることによ
り、この溶融金属を凝固させる貯液槽とからなる
ために、ヒータにより取出孔の凝固金属を溶融
し、これを目皿を介して冷却液に滴下させること
によつて特別な操作を行う事なく、金属粒を製造
することができる。そして、装置全体の構成も簡
単であり、このため設備コストが低下して、ひい
ては得られる金属粒のコストダウンをなしうる。
また、調整ロツドの周囲の凝固金属は薄いために
ヒータによつて簡単に溶融することができ、溶融
金属を速やかに流出させて目的の金属粒を製造で
きる。 Further, the device of the present invention has an ejection hole at the bottom,
a melting furnace for storing molten metal; an adjusting rod inserted into the take-out hole to form a gap for passing the molten metal between the inner peripheral surface of the take-out hole; a heater provided to control solidification and melting of molten metal in the extraction hole; a support member disposed below the extraction hole to support the adjustment rod; and a support member installed below the support member;
The molten metal is allowed to fall from the extraction hole, and a perforated plate is formed with a hole through which the molten metal is dripped; A heater melts the solidified metal in the extraction hole, which is then passed through a perforated plate into a cooling liquid tank. Metal particles can be produced without any special operation by dropping the metal particles into the liquid. Furthermore, the overall structure of the apparatus is simple, and therefore the equipment cost is reduced, which in turn makes it possible to reduce the cost of the metal particles obtained.
Further, since the solidified metal around the adjustment rod is thin, it can be easily melted by a heater, and the molten metal can be quickly flowed out to produce the desired metal particles.
第１図ないし第３図は、本発明の一実施例を示
すもので、第１図は溶融金属の貯留状態を示す断
面図、第２図は溶融炉に接続された気密ケースを
示す断面図、第３図は金属粒の製造状態を示す断
面図である。
３……溶融炉、３ｂ……取出孔、３ｃ……ヒー
タ、６……調整ロツド、９……支持部材、１０…
…目皿、１１……貯液槽、１１ａ……冷却液。
Figures 1 to 3 show one embodiment of the present invention, with Figure 1 being a cross-sectional view showing how molten metal is stored, and Figure 2 being a cross-sectional view showing an airtight case connected to a melting furnace. , FIG. 3 is a sectional view showing the manufacturing state of metal grains. 3...Melting furnace, 3b...Takeout hole, 3c...Heater, 6...Adjustment rod, 9...Support member, 10...
...Perforated plate, 11...Liquid storage tank, 11a...Cooling liquid.
Claims (1)
出孔に調整ロツドを遊挿し、この調整ロツドと取
出孔との間の間隙を溶融炉内の溶融金属を凝固さ
せた凝固金属で塞いでおき、必要に応じて取出孔
内の凝固金属をヒータにより溶融させることによ
り、この溶融金属を前記隙間からその下方に配置
されている目皿内に落下させ、ついで、この目皿
内の溶融金属を目皿に形成されている孔から、冷
却液中に滴下させて凝固させることを特徴とする
金属粒の製造方法。 ２ 底部に取出孔を有し、溶融金属を貯留する溶
融炉と、前記取出孔内に挿通されて、この取出孔
の内周面との間に溶融金属を通過させるための間
隙を形成する調整ロツドと、前記取出孔の周囲に
設けられて取出孔内の溶融金属の凝固と溶融を制
御するヒータと、前記取出孔の下方に配置され、
前記調整ロツドを支持する支持部材と、この支持
部材の下方に設置され、前記溶融金属が前記取出
孔から落下させられるとともに、前記溶融金属が
滴下させられる孔が形成された目皿と、この目皿
の下方に配置され、冷却液によつて満たされると
ともに、前記目皿の孔から滴下された溶融金属が
落下させられることにより、この溶融金属を凝固
させる貯液槽とからなることを特徴とする金属粒
の製造装置。[Claims] 1. An adjustment rod is loosely inserted into a take-out hole provided at the bottom of a melting furnace in which molten metal is stored, and a gap between the adjustment rod and the take-out hole is used to solidify the molten metal in the melting furnace. The solidified metal in the extraction hole is blocked with solidified metal, and if necessary, the solidified metal in the extraction hole is melted by a heater, and the molten metal is allowed to fall through the gap into the perforated plate disposed below the hole. A method for producing metal particles, which comprises dropping molten metal in a dish into a cooling liquid through holes formed in a perforated plate to solidify it. 2. An adjustment that forms a gap between a melting furnace that has a take-out hole at the bottom and stores molten metal, and an inner peripheral surface of the take-out hole that is inserted into the take-out hole to allow the molten metal to pass through. a rod, a heater provided around the extraction hole to control solidification and melting of the molten metal in the extraction hole, and a heater disposed below the extraction hole;
a support member that supports the adjustment rod; a perforated plate installed below the support member that allows the molten metal to fall from the extraction hole and has a hole through which the molten metal is dripped; It is characterized by comprising a liquid storage tank disposed below the plate, filled with a cooling liquid, and in which molten metal dripped from the holes of the perforated plate is allowed to fall, thereby solidifying the molten metal. Equipment for manufacturing metal particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6616185A JPS61227105A (en) | 1985-03-29 | 1985-03-29 | Method and apparatus for producing metallic grains |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6616185A JPS61227105A (en) | 1985-03-29 | 1985-03-29 | Method and apparatus for producing metallic grains |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61227105A JPS61227105A (en) | 1986-10-09 |
| JPH0480963B2 true JPH0480963B2 (en) | 1992-12-21 |
Family
ID=13307849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6616185A Granted JPS61227105A (en) | 1985-03-29 | 1985-03-29 | Method and apparatus for producing metallic grains |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61227105A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0581231U (en) * | 1992-03-31 | 1993-11-05 | 三菱マテリアル株式会社 | Dropper for producing metal shot grains |
-
1985
- 1985-03-29 JP JP6616185A patent/JPS61227105A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61227105A (en) | 1986-10-09 |
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