JPH03146610A - Manufacture of solder powder - Google Patents
Manufacture of solder powderInfo
- Publication number
- JPH03146610A JPH03146610A JP28318889A JP28318889A JPH03146610A JP H03146610 A JPH03146610 A JP H03146610A JP 28318889 A JP28318889 A JP 28318889A JP 28318889 A JP28318889 A JP 28318889A JP H03146610 A JPH03146610 A JP H03146610A
- Authority
- JP
- Japan
- Prior art keywords
- rotary body
- rotating body
- atomizing
- solder alloy
- molten solder
- 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
- 229910000679 solder Inorganic materials 0.000 title claims abstract description 13
- 239000000843 powder Substances 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 238000010298 pulverizing process Methods 0.000 claims abstract description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims abstract 4
- 235000005074 zinc chloride Nutrition 0.000 claims abstract 2
- 239000011592 zinc chloride Substances 0.000 claims abstract 2
- 238000005507 spraying Methods 0.000 claims description 7
- 150000004820 halides Chemical class 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 238000000889 atomisation Methods 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 238000009738 saturating Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 6
- 150000003841 chloride salts Chemical class 0.000 description 3
- 150000004673 fluoride salts Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 150000003842 bromide salts Chemical class 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000004694 iodide salts Chemical class 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野１
本発明は、金属・合金の溶湯を微細に粉砕して粉末を製
造する遠心噴霧方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a centrifugal spraying method for producing powder by finely pulverizing molten metal or alloy.
［従来の技術１
溶湯を粉砕する方法として、従来より遠心噴霧法が知ら
れているが、この方法は、円盤状の高速回転体の方面に
溶湯を魂き、瀉温シご四軽伏の、１動エネルギーを付与
し、遠心力により両数させ、粉砕することを特徴とする
。この方法は、設備が比較的小型であることと、噴霧室
の雰囲気の調整が容易であり、また少量多品種の金属・
合金の製造にも適しているといった特徴を有している。[Conventional technology 1] Centrifugal spraying has been known as a method of crushing molten metal, but this method involves pouring molten metal toward a disk-shaped high-speed rotating body and heating it in a four-light process. , it is characterized by applying kinetic energy and pulverizing it by centrifugal force. This method requires relatively small equipment, makes it easy to adjust the atmosphere in the spray room, and allows for the production of a wide variety of metals in small quantities.
It has the characteristic that it is also suitable for manufacturing alloys.
さらに、回転体の速度を変えることにより、得られる粉
末の粒度をある程度調整できることも特徴として挙げる
ことができる。Another feature is that the particle size of the resulting powder can be adjusted to some extent by changing the speed of the rotating body.
〔発明が解決しようとする課題］
従来の遠心噴霧装置は、次のような問題点を有していた
。[Problems to be Solved by the Invention] Conventional centrifugal spray devices had the following problems.
回転体は第１図に示すような凸形、平形、凹形又はカッ
プ状であるが、いずれの場合にも、回転数が大きくなる
と、中心部へ供給された溶湯は第２図に示すように全部
が一様に周辺部に流れることは少な（、第３図に示すよ
うに一部は中心部から飛び出すようになる。The rotating body has a convex shape, a flat shape, a concave shape, or a cup shape as shown in Fig. 1, but in any case, as the rotation speed increases, the molten metal supplied to the center changes as shown in Fig. 2. However, it is rare for all of the fluid to flow uniformly to the periphery (as shown in Figure 3, some of the fluid flows out from the center).
中心部から飛び出した溶湯は液滴となり、大粒として固
まるか、又はチャンバー壁に当って薄片ｆｙｈヒ １廿
Ｉ シ５ ＊ ／７”ｌ Ｉｔυ １ミ
メ一 →ｒ市臣 Ｌ７ 亜イト 六 什 ）−［課題
を解決するための手段１
本発明は、回転体の溶湯が衝突する面を、ハロゲン化物
の水溶液で処理し、ハンダ合金と回転体の濡れ性を良く
して溶湯が回転体の中央部から飛び出すのを防止するも
のである。The molten metal that jumps out from the center becomes droplets and solidifies as large particles, or hits the chamber wall and flakes. - [Means for Solving the Problems 1] The present invention treats the surface of the rotating body with which the molten metal collides with an aqueous solution of a halide to improve the wettability between the solder alloy and the rotating body, so that the molten metal hits the center of the rotating body. This prevents it from jumping out of the area.
回転体はハンダの融点以上の温度に耐えるものであり、
通常Ｆｅ、 Ｃｒ、 ＮｉまたはＣＯの内から選ばれた
金属又は合金で製作する。最も手軽な材料はステンレス
鋼、たとえばＳＵＳ ３０４である。The rotating body can withstand temperatures above the melting point of the solder.
Usually made of a metal or alloy selected from Fe, Cr, Ni or CO. The simplest material is stainless steel, for example SUS 304.
本発明で対象とするハンダはＰｂ−５ｎ系を基本とし、
これに第３成分としてＢｉ、 Ｓｂ、 Ｚｎ、 Ｃｄを
少量添加したものでも良い。The solder targeted by the present invention is based on Pb-5n type,
A small amount of Bi, Sb, Zn, or Cd may be added to this as a third component.
ハロゲン化物としては、フッ化物、塩化物、臭化物、ヨ
ウ化物等があるが、これらの中で、フッ化物と塩化物が
特に好ましい。さらにフッ化物、塩化物の中では亜鉛の
塩が特に好ましい。Examples of halides include fluorides, chlorides, bromides, iodides, etc. Among these, fluorides and chlorides are particularly preferred. Among fluorides and chlorides, zinc salts are particularly preferred.
これらの塩の水溶液で、回転体を処理するのであるが、
水溶液の濃度としては出来るだけ飽和溶液に近いものが
好ましい。また、処理する温度は常温で回転体表面に塗
布すれば良い。The rotating body is treated with an aqueous solution of these salts,
The concentration of the aqueous solution is preferably as close to a saturated solution as possible. Further, the treatment temperature may be room temperature and the coating may be applied to the surface of the rotating body.
［作用］
Ｆｅ、 Ｃｒ、 ＮｉまたはＣｏの内から選くれた金属
又はこれらの合金から成る回転体をハロゲン化物で処理
することにより、ハンダ合金の溶湯と回転体の濡れ性を
良くし、回転体の中央に供給された溶湯が、中央から飛
び出すのを防ぎ、良好な噴霧を行う。[Function] By treating a rotating body made of a metal selected from Fe, Cr, Ni, or Co or an alloy thereof with a halide, the wettability of the molten solder alloy and the rotating body is improved, and the rotating body This prevents the molten metal supplied to the center from jumping out from the center, resulting in good spraying.
実施例
第４図に示す遠心噴霧装置を用いて、共晶組成のハンダ
であるＰｂ−６３ｗｔ％Ｓｎ合金を３００℃で溶解し、
第２図に示す回転体（直径６０ｍ＋＋＋ψ）の表面に各
種溶液を塗布し、第１表に示す条件で遠心噴霧な行った
。Example Using the centrifugal spraying device shown in FIG. 4, a Pb-63wt%Sn alloy, which is a solder with a eutectic composition, was melted at 300°C.
Various solutions were applied to the surface of a rotating body (diameter 60 m+++ψ) shown in FIG. 2, and centrifugally sprayed under the conditions shown in Table 1.
なお、回転体の材質はいずれもステンレス（ＳＵＳ３０
４）である。The material of the rotating body is stainless steel (SUS30
4).
（以下余白） 第１表 噴量終了後、 粉末を取出し、 ｑｏｕのフルイで分 級し、 ９０μ下の比率を求めた。(Margin below) Table 1 After the injection amount ends, Take out the powder, Minutes with qou's flue grade, The ratio below 90μ was determined.
これを、 第２表に示す。this, Shown in Table 2.
第２表 第２表より、本発明の効果は明らかである。Table 2 From Table 2, the effects of the present invention are clear.
［発明の効果１
本発明によれば回転体と合金溶湯との濡れ性が改善され
、溶湯のハネ返りが少なくなる。その結果、微細粉末の
収率が著しく向上する。[Effect of the Invention 1] According to the present invention, the wettability between the rotating body and the molten alloy is improved, and the splashing of the molten metal is reduced. As a result, the yield of fine powder is significantly improved.
第１図は遠心噴霧装置の回転体を示す図、第２図は遠心
噴霧の状態が良好な場合を示す図、第３図は遠心噴霧の
状態が悪（、中央から液滴牙飛び出している場合を示す
図、第４図は遠心噴霧装置全体を示す図である。
■・・・・・・溶湯
２・・・・・・噴霧室
３・・・・・・回転体
４・・・・・・粉末Fig. 1 shows the rotating body of the centrifugal spray device, Fig. 2 shows the case where the centrifugal spray is in good condition, and Fig. 3 shows the case where the centrifugal spray is in bad condition (droplets protruding from the center). Figure 4 is a diagram showing the entire centrifugal spraying device.■... Molten metal 2... Spray chamber 3... Rotating body 4...・・Powder
Claims (2)
これを粉砕する遠心噴霧方法に於て、該回転体がＦｅ、
Ｃｒ、ＮｉまたはＣｏの内から選ばれた金属又はこれら
の合金から成り、噴霧直前に該回転体にハロゲン化物の
水溶液を塗布した後噴霧することを特徴とするハンダ粉
末の製造方法。(1) Colliding molten solder alloy against a rotating body,
In the centrifugal spraying method for pulverizing this, the rotating body contains Fe,
A method for producing solder powder made of a metal selected from Cr, Ni or Co, or an alloy thereof, characterized in that immediately before spraying, an aqueous solution of a halide is applied to the rotating body and then sprayed.
第１項記載のハンダ粉末の製造方法。(2) The method for producing solder powder according to item 1, wherein the halide is zinc chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28318889A JPH03146610A (en) | 1989-10-30 | 1989-10-30 | Manufacture of solder powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28318889A JPH03146610A (en) | 1989-10-30 | 1989-10-30 | Manufacture of solder powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03146610A true JPH03146610A (en) | 1991-06-21 |
Family
ID=17662275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28318889A Pending JPH03146610A (en) | 1989-10-30 | 1989-10-30 | Manufacture of solder powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03146610A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4760906B2 (en) * | 2006-06-08 | 2011-08-31 | 株式会社村田製作所 | Liquid substance detection method and liquid substance detection sensor |
-
1989
- 1989-10-30 JP JP28318889A patent/JPH03146610A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4760906B2 (en) * | 2006-06-08 | 2011-08-31 | 株式会社村田製作所 | Liquid substance detection method and liquid substance detection sensor |
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