JPH08923B2 - Nozzle for manufacturing metal balls - Google Patents
Nozzle for manufacturing metal ballsInfo
- Publication number
- JPH08923B2 JPH08923B2 JP62310112A JP31011287A JPH08923B2 JP H08923 B2 JPH08923 B2 JP H08923B2 JP 62310112 A JP62310112 A JP 62310112A JP 31011287 A JP31011287 A JP 31011287A JP H08923 B2 JPH08923 B2 JP H08923B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- molten metal
- nozzle
- nozzle body
- drop port
- 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
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、球形1mm以下の球状ろう、触媒用金属球、
ガスセンサー用金属球等の金属球の製造する為のノズル
に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a spherical solder having a spherical shape of 1 mm or less, a metal sphere for a catalyst,
The present invention relates to a nozzle for manufacturing metal balls such as metal balls for gas sensors.
（従来の技術） 従来、上記用途の金属球を作るには、一般に噴霧媒と
してガスを用いるガス噴霧法が採用されている。(Prior Art) Conventionally, a gas atomization method using a gas as an atomizing medium has been generally used to produce metal balls for the above-mentioned applications.
ところで、上記金属球は細かく均一なものが要求さ
れ、不均一だと分級工程を必要とし、生産性が悪くな
り、また球状ろうの場合接合強度がばらつき不安定とな
り、触媒用金属球の場合触媒機能にばらつきが生じ、ガ
スセンサー用金属球の場合感知機能にばらつきが生じ
る。By the way, the metal spheres are required to be fine and uniform, and if they are non-uniform, a classification step is required, resulting in poor productivity. The function varies, and the sensing function of the metal ball for gas sensor varies.
この為ガス噴霧法に於ける噴霧ノズルは、第３図に示
す如く溶融金属落下口１が中心に設けられ、下半部が載
頭円錐状の頭部２、上半部がねじ３付小径の脚部４とな
っているノズル本体５を、ねじ３にて環状ガス室６の内
側壁７に上下動可能に螺着して、載頭円錐状の頭部２の
外周と環状ガス室６の下面中央の逆円錐状の開口8aとの
間から溶融金属落下口１の中心線ｌに向かってガスを噴
射集中する逆円錐状のガス噴射口９を形成し、ノズル本
体５を上下動させることにより、ガス噴射口９の開口面
積を調整し、ガス噴射量を調整するようにしている。Therefore, the atomizing nozzle in the gas atomizing method is provided with the molten metal drop port 1 at the center as shown in FIG. 3, the lower half portion has a head 2 with a truncated cone shape, and the upper half portion has a screw 3 with a small diameter. The nozzle body 5, which is the leg portion 4 of the head, is screwed onto the inner side wall 7 of the annular gas chamber 6 with a screw 3 so as to be vertically movable, and the outer periphery of the head 2 having a truncated cone shape and the annular gas chamber 6 Forming a reverse conical gas injection port 9 for injecting and concentrating gas toward the center line 1 of the molten metal drop port 1 from between the center of the lower surface and the reverse conical opening 8a, and moving the nozzle body 5 up and down. Thus, the opening area of the gas injection port 9 is adjusted, and the gas injection amount is adjusted.
また第４図に示す如く環状ガス室６にブレード13を設
けて、ガスをサイクロン状に回転させてガス噴射口９か
ら旋回しながら溶融金属落下口１の中心線ｌに向かって
噴射集中するようにしている。Further, as shown in FIG. 4, a blade 13 is provided in the annular gas chamber 6 so that the gas is rotated in a cyclone shape and swirls from the gas injection port 9 so as to concentrate the injection toward the center line 1 of the molten metal drop port 1. I have to.
（発明が解決しようとする問題点） ところが、上記いずれの噴霧ノズルに於いても、ガス
の使用量、流量を少なくする為に、溶融金属落下口１の
径を小さく抑えての設計としている。この為溶融金属が
落下口１の下方でつらら状に固まってしまい、目詰まり
する。その結果、噴霧ガスにより溶融金属流を細かく分
断することができなくなり、金属球が得られなくなるも
のである。(Problems to be Solved by the Invention) However, in any of the above spray nozzles, the diameter of the molten metal dropping port 1 is designed to be small in order to reduce the gas usage and flow rate. For this reason, the molten metal solidifies in an icicle shape below the drop port 1 and becomes clogged. As a result, it becomes impossible to finely divide the molten metal flow by the spray gas, and it becomes impossible to obtain metal spheres.
（発明の目的） 本発明は上記問題点を解決すべくなされたもので、溶
融金属が落下口の下方でつらら状に固まるのを防止で
き、しかも球径のばらつきの少ない金属球を作ることの
できる製造用ノズルを提供することを目的とするもので
ある。(Object of the invention) The present invention has been made to solve the above-mentioned problems, and it is possible to prevent the molten metal from being solidified in an icicle shape below the drop port, and to make a metal ball with a small variation in the ball diameter. It is an object of the present invention to provide a manufacturing nozzle that can be manufactured.
（問題点を解決するための手段） 上記問題点を解決するための本発明の金属球製造用ノ
ズルは、在来の金属球製造用ノズルに於いて、ノズル本
体（５）の中心に溶融金属落下口（１）を有し、該溶融
金属落下口（１）の外周側に溶融金属落下口（１）の中
心線に向かってガスを噴射集中する逆円錐状のガス噴射
口（９）を有する金属球製造用ノズルに於いて、前記ノ
ズル本体（５）の溶融金属落下口（１）内上部に黒鉛又
はアルミナ円筒（10）の大径の上半部が嵌入され、小径
の下半部外周と溶融金属落下口（１）との間に環状の垂
直なガス通路（11）を形成し、ノズル本体（５）の中間
部外周に前記の垂直なガス通路（11）に通ずる水平なガ
ス通路（12）が複数設けられ、ノズル本体（５）は上部
のねじ（３）にてガス室（６）の上面内側壁（７）に上
下可動に取付けられ、ノズル本体（５）下部の載頭円錐
状頭部（２）とガス室（６）下面にねじにより上下可動
に取付けられた円板（８）の中央に設けられた逆円錐開
口（8a）とにより逆円錐状のガス噴射口（９）が形成さ
れていることを特徴とするものである。(Means for Solving Problems) A metal sphere manufacturing nozzle of the present invention for solving the above problems is a conventional metal sphere manufacturing nozzle in which a molten metal is formed at the center of the nozzle body (5). An inverted conical gas injection port (9) having a drop port (1) and concentrating gas toward the center line of the molten metal drop port (1) on the outer peripheral side of the molten metal drop port (1). In the nozzle for producing a metal ball, the upper half of the graphite or alumina cylinder (10) is fitted into the upper part of the molten metal drop port (1) of the nozzle body (5), and the lower half of the small diameter is fitted. An annular vertical gas passage (11) is formed between the outer periphery and the molten metal drop port (1), and a horizontal gas communicating with the vertical gas passage (11) is formed on the outer periphery of the intermediate portion of the nozzle body (5). A plurality of passages (12) are provided, and the nozzle body (5) is screwed on the upper part (3) to the inner wall of the upper surface of the gas chamber (6) 7) movably mounted up and down, and provided at the center of a disk (8) movably mounted by screws on the lower surface of the frusto-conical head (2) at the bottom of the nozzle body (5) and the lower surface of the gas chamber (6). The reverse conical opening (8a) forms a reverse conical gas injection port (9).
（作用） 本発明の金属球製造用ノズルは、上述の如く構成され
ているので、ガスが逆円錐状のガス噴射口となる垂直な
ガス通路から噴射される。従って、黒鉛又はアルミナの
円筒から流下する溶融金属はつらら状に固まるのが防止
され、目詰まりすることが無い。また垂直なガス通路へ
通じる水平なガス通路が中のノズル部を上下動すること
により、その開口面積が増減するので、ガス通路のガス
流量を最適な流量に調整して、ノズル本体の蓋の上下動
による逆円錐状のガス噴射口の開口面積の増減によるガ
ス噴射量の調整と相俟って、得られる金属球の球形のば
らつきを減少できる。(Operation) Since the metal sphere manufacturing nozzle of the present invention is configured as described above, gas is injected from the vertical gas passage serving as the inverted conical gas injection port. Therefore, the molten metal flowing down from the graphite or alumina cylinder is prevented from being solidified in an icicle shape and is not clogged. Also, since the horizontal gas passage leading to the vertical gas passage moves up and down the nozzle part inside, the opening area increases and decreases, so the gas flow rate of the gas passage is adjusted to the optimum flow rate and the nozzle body lid The variation of the spherical shape of the obtained metal sphere can be reduced in combination with the adjustment of the gas injection amount by increasing or decreasing the opening area of the inverted conical gas injection port due to the vertical movement.
（実施例） 本発明による金属球製造用ノズルの一実施例を第１図
及び第２図によって説明する。第１図は縦断面図、第２
図は下面図で、溶融金属落下口１が中心に設けられ、下
半部が截頭円錐状の頭部２、上半部がねじ３付小径の脚
部４となっているノズル本体５が、ねじ３にて環状ガス
室６の内側壁７に上下動可能に螺着されて、截頭円錐状
の頭部２の外周と環状ガス室６の下面中央の逆円錐状開
口8aとの間に溶融金属落下口１の中心線ｌに向かってガ
スを噴射集中する逆円錐状のガス噴射口９が形成されて
いる。従って、ノズル本体５及び逆円錐開口8aを有する
円板８を上下動させることにより、ガス噴射口９の開口
面積を調整し、ガス噴射量を調整できる。(Embodiment) An embodiment of the nozzle for producing metal balls according to the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a longitudinal sectional view, second
The figure is a bottom view showing a nozzle main body 5 in which a molten metal drop port 1 is provided at the center, a lower half portion is a truncated cone-shaped head portion 2, and an upper half portion is a leg portion 4 with a screw 3 and a small diameter. Between the outer circumference of the truncated cone-shaped head 2 and the inverted conical opening 8a at the center of the lower surface of the annular gas chamber 6, which is screwed to the inner side wall 7 of the annular gas chamber 6 by screws 3 so as to be vertically movable. An inverted conical gas injection port 9 is formed to inject and concentrate the gas toward the center line 1 of the molten metal drop port 1. Therefore, by vertically moving the nozzle body 5 and the disk 8 having the inverted conical opening 8a, the opening area of the gas injection port 9 can be adjusted and the gas injection amount can be adjusted.
さて本発明の金属球製造用ノズルは、前記ノズル本体
５の溶融金属落下口１内に、黒鉛（又はアルミナ）の円
筒10を嵌入して、その小径の下半部外周と溶融金属落下
口１との間に環状の垂直なガス通路11を形成している。
前記ノズル本体５の中間部外周、即ち頭部２の付け根部
分の外周には水平なガス通路12が四方に穿設されてい
る。Now, in the nozzle for producing a metal ball of the present invention, a graphite (or alumina) cylinder 10 is inserted into the molten metal drop port 1 of the nozzle body 5, and the outer periphery of the lower half of the small diameter and the molten metal drop port 1 are inserted. An annular vertical gas passage 11 is formed between and.
Horizontal gas passages 12 are bored in all directions on the outer periphery of the middle portion of the nozzle body 5, that is, on the outer periphery of the base portion of the head 2.
このように構成された実施例の金属球製造用ノズルの
作用について説明すると、円筒10より溶融金属を流出落
下させると同時にその逆円錐状のガス噴射口９より不活
性ガスを噴射させて落下する溶融金属に集中させて細か
く分断し且つその不活性ガスにより急冷凝固させて金属
球を得る。この金属球の製造に於いて、不活性ガスは水
平なガス通路12を通って垂直なガス通路11にも入り、こ
れより噴射される結果、円筒10から流出落下する溶融金
属はつらら状に固まるのが防止され、目詰まりすること
が無く、又ガス噴射の乱流防止にもなる。The operation of the nozzle for producing metal balls of the embodiment thus constructed will be described. Molten metal flows out and falls from the cylinder 10, and at the same time, an inert gas is ejected from the gas cone 9 having an inverted conical shape to fall. The molten metal is concentrated, finely divided, and rapidly cooled and solidified by the inert gas to obtain metal balls. In the production of the metal balls, the inert gas also enters the vertical gas passage 11 through the horizontal gas passage 12, and as a result of being injected from this, the molten metal flowing out and falling from the cylinder 10 solidifies into an icicle. Is prevented, clogging is prevented, and turbulent flow of gas injection is prevented.
また垂直なガス通路11へ通じる水平なガス通路12は、
ノズル本体５を上下動することにより、水平なガス通路
12に対する開口面積が増減されて、垂直なガス通路11の
ガス流量が最適な流量に調整される。従ってノズル本体
５の上下動による逆円錐状のガス噴射口９の開口面積の
増減によるガス噴射量の調整との相乗作用により、得ら
れる金属球のばらつきが減少せしめられる。Also, the horizontal gas passage 12 leading to the vertical gas passage 11 is
Horizontal gas passage by moving the nozzle body 5 up and down
The opening area for 12 is increased or decreased to adjust the gas flow rate of the vertical gas passage 11 to an optimum flow rate. Therefore, the variation of the obtained metal balls can be reduced by a synergistic effect with the adjustment of the gas injection amount by increasing or decreasing the opening area of the inverted conical gas injection port 9 due to the vertical movement of the nozzle body 5.
（発明の効果） 以上の説明で判るように、本発明による金属球製造用
ノズルによれば、流出落下する溶融金属に対し逆円錐状
にガスを噴射集中すると同時に垂直にガスを噴射できる
ので、溶融金属がつらら状に固まるのが防止されて目詰
まりすることが無く、細かく分断されて金属球が得られ
る。また逆円錐状にガスが噴射されるガス噴射口と垂直
にガスが噴射されるガス通路の開口面積を夫々増減して
各々のガス噴射量を最適な量に調整できるので、得られ
る金属球のばらつきを減少して略均一なものにできる。(Effects of the Invention) As can be seen from the above description, according to the metal sphere manufacturing nozzle of the present invention, it is possible to vertically inject gas while concentrating the gas in an inverted conical shape with respect to the molten metal flowing out and falling. The molten metal is prevented from being solidified into an icicle and is not clogged, and the metal sphere is obtained by being finely divided. Further, since the opening area of the gas passage through which the gas is injected in the shape of an inverted cone and the gas passage through which the gas is injected perpendicularly can be increased or decreased, the amount of each gas injected can be adjusted to the optimum amount, so The variation can be reduced to be substantially uniform.
第１図は本発明の金属球製造用ノズルの一実施例を示す
縦断面図、第２図はその下面図、第３図及び第４図は夫
々従来の金属球製造用ノズルを示す縦断面図である。FIG. 1 is a longitudinal sectional view showing an embodiment of the nozzle for producing metal balls of the present invention, FIG. 2 is a bottom view thereof, and FIGS. 3 and 4 are longitudinal sectional views showing conventional nozzles for producing metal balls, respectively. It is a figure.
Claims (1)
（１）を有し、該溶融金属落下口（１）の外周側に溶融
金属落下口（１）の中心線に向かってガスを噴射集中す
る逆円錐状のガス噴射口（９）を有する金属球製造用ノ
ズルに於いて、前記ノズル本体（５）の溶融金属落下口
（１）内上部に黒鉛又はアルミナ円筒（10）の大径の上
半部が嵌入され、小径の下半部外周と溶融金属落下口
（１）との間に環状の垂直なガス通路（11）を形成し、
ノズル本体（５）の中間部外周に前記の垂直なガス通路
（11）に通ずる水平なガス通路（12）が複数設けられ、
ノズル本体（５）は上部のねじ（３）にてガス室（６）
の上面内側壁（７）に上下可動に取付けられ、ノズル本
体（５）下部の載頭円錐状頭部（２）とガス室（６）下
面にねじにより上下可動に取付けられた円板（８）の中
央に設けられた逆円錐開口（8a）とにより逆円錐状のガ
ス噴射口（９）が形成されていることを特徴とする金属
球製造用ノズル。1. A molten metal drop port (1) is provided at the center of a nozzle body (5), and a gas is directed toward the center line of the molten metal drop port (1) on the outer peripheral side of the molten metal drop port (1). In a nozzle for producing a metal ball having an inverted conical gas injection port (9) for injecting and concentrating gas, a graphite or alumina cylinder (10) is provided on an upper part inside the molten metal drop port (1) of the nozzle body (5). The upper half of the large diameter is fitted, and an annular vertical gas passage (11) is formed between the outer circumference of the lower half of the small diameter and the molten metal drop opening (1),
A plurality of horizontal gas passages (12) communicating with the vertical gas passages (11) are provided on the outer periphery of the intermediate portion of the nozzle body (5),
The nozzle body (5) is attached to the upper screw (3) by the gas chamber (6).
A disk (8) vertically movably attached to the inner wall (7) of the upper surface of the disk, and vertically attached to the lower head of the nozzle body (5) and the lower surface of the gas chamber (6) by screws. (2) A nozzle for producing a metal ball, characterized in that an inverted conical gas injection port (9) is formed by an inverted conical opening (8a) provided at the center of (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62310112A JPH08923B2 (en) | 1987-12-08 | 1987-12-08 | Nozzle for manufacturing metal balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62310112A JPH08923B2 (en) | 1987-12-08 | 1987-12-08 | Nozzle for manufacturing metal balls |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01152204A JPH01152204A (en) | 1989-06-14 |
| JPH08923B2 true JPH08923B2 (en) | 1996-01-10 |
Family
ID=18001322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62310112A Expired - Lifetime JPH08923B2 (en) | 1987-12-08 | 1987-12-08 | Nozzle for manufacturing metal balls |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08923B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100216635B1 (en) * | 1996-01-19 | 1999-09-01 | 손욱 | Manufacturing method of frame for color crt |
| DE19928865C1 (en) * | 1999-06-24 | 2001-01-25 | Continental Ag | Method for determining the distance between two reference points movable between a lower and an upper distance limit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6037164B2 (en) * | 1977-01-18 | 1985-08-24 | 日産自動車株式会社 | Metal powder manufacturing method and device |
| JPS62230905A (en) * | 1986-03-31 | 1987-10-09 | Sanyo Tokushu Seiko Kk | Apparatus for producing metallic powder |
-
1987
- 1987-12-08 JP JP62310112A patent/JPH08923B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01152204A (en) | 1989-06-14 |
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