JPS63282219A - Method for adding alloy additive - Google Patents
Method for adding alloy additiveInfo
- Publication number
- JPS63282219A JPS63282219A JP11786187A JP11786187A JPS63282219A JP S63282219 A JPS63282219 A JP S63282219A JP 11786187 A JP11786187 A JP 11786187A JP 11786187 A JP11786187 A JP 11786187A JP S63282219 A JPS63282219 A JP S63282219A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- tube
- alloy
- additives
- alloy additives
- 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
- 239000000654 additive Substances 0.000 title claims abstract description 42
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 36
- 239000000956 alloy Substances 0.000 title claims abstract description 36
- 230000000996 additive effect Effects 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 36
- 239000011261 inert gas Substances 0.000 claims abstract description 11
- 239000010953 base metal Substances 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 abstract description 11
- 230000003647 oxidation Effects 0.000 abstract description 7
- 238000007254 oxidation reaction Methods 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は金属又は合金溶湯中に合金添加物を添加する方
法に関するもので、特に合金添加物、の酸化を防止して
添加歩留りの向上を図ったものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for adding alloy additives to molten metal or alloy, and in particular to a method for preventing oxidation of alloy additives and improving the addition yield. It was planned.
一般に炉内雰囲気制御が行なわれていない開放形の金属
又は合金溶解炉や保持炉では合金添加物を添加したり、
溶融合金の成分を補正する方法として、単体又は合金添
加物を粉粒材、線材、棒材又は塊状材として、そのまま
炉内に投入するか、或いはこれ等を溶湯と同材質又は溶
湯のベース金属からなる箔状体等に包んで投入している
。しかしながら比重の小さい添加物は溶湯表面に浮上す
るため、その沈降装置や撹拌装置が必要となり、また酸
化し易い添加物は投入の際に瞬間的に大気と反応するた
め、添加歩留りが極端に悪い。Generally, in open-type metal or alloy melting furnaces and holding furnaces where the atmosphere inside the furnace is not controlled, alloy additives are added,
As a method of correcting the composition of the molten alloy, it is possible to input the single substance or alloy additives into the furnace as they are in the form of powder, wire, bar, or block material, or to add them to the same material as the molten metal or the base metal of the molten metal. It is wrapped in a foil-like material, etc., and then thrown in. However, since additives with low specific gravity float to the surface of the molten metal, a settling device or stirring device is required, and additives that are easily oxidized instantly react with the atmosphere when added, resulting in an extremely low addition yield. .
これに鑑み最近鋼又は銅合金製造用の添加剤として、銅
又は銅合金の被覆用帯状板を断面Ｕ字形に形成して溝部
を設け、この溝部に銅又は銅合金添加物の粒状体を充填
して封入し、これをパイプ状に成形して銅又は銅合金の
溶湯中に挿入することが特開昭６１−８７８３１号公報
により提案されている。In view of this, recently, as an additive for manufacturing steel or copper alloy, a copper or copper alloy coating band plate is formed into a U-shaped cross section and a groove is provided, and this groove is filled with granular particles of copper or copper alloy additive. Japanese Patent Application Laid-open No. 87831/1983 proposes that the pipe be sealed, formed into a pipe shape, and inserted into a molten copper or copper alloy.
（発明が解決しようとする問題点）
特開昭６１−８７８３１号公報に記載された添加剤によ
れば、比重の小さい添加物の浮上や酸化し易い添加物の
大気との反応をある程度改善することができるも、まだ
十分なものとは言えない。(Problems to be Solved by the Invention) According to the additive described in JP-A-61-87831, the floating of additives with low specific gravity and the reaction of easily oxidized additives with the atmosphere can be improved to some extent. Although it can be done, it is still not sufficient.
その一つはパイプ状内に残留する空気（酸素）によって
酸化し、その歩留りを低下する。特にＭｇのように酸化
しやすい物質は、残留酸素のほとんどと結び付く。また
添加物の形状が特に粒状体に限られているため、コスト
的に不利である。One of them is oxidation due to air (oxygen) remaining in the pipe, reducing the yield. In particular, substances that are easily oxidized, such as Mg, combine with most of the residual oxygen. Furthermore, since the shape of the additive is particularly limited to granules, it is disadvantageous in terms of cost.
本発明はこれに鑑み種々検討の結果、添加物を空気（酸
素）から完全に遮断して溶湯中に添加し、酸化による歩
留りの低下を抑え、更に添加物としてその形状も粒状体
に限らず、粉、線。In view of this, as a result of various studies, the present invention has been developed by completely blocking the additive from air (oxygen) and adding it to the molten metal to suppress the decrease in yield due to oxidation. , powder, line.
ナゲツト等種々の形状のものが使用できる合金添加物の
添加方法を開発したもので、溶融した金属又は合金溶湯
中に、合金添加物を添加する方法において、溶湯と同材
質又は溶湯のベース金属からなるチューブ内に、合金添
加物を充填し、チューブ内に不活性ガスを流入して残留
空気を排除した後、チューブを溶湯中に挿入して溶解す
ることを特徴とするものである。This is a method of adding alloy additives that can be used in various shapes such as nuggets.In the method of adding alloy additives to molten metal or molten alloy, it is made from the same material as the molten metal or the base metal of the molten metal. This method is characterized by filling a tube with alloy additives, injecting an inert gas into the tube to eliminate residual air, and then inserting the tube into the molten metal and melting it.
即ち本発明は第１図及び第２図に示すように、溶湯と同
材質又は溶湯のベース金属からなる両端開放の保護チュ
ーブ（１）内に合金添加物、例えば図に示すようにこの
長さより若干短い合金添加物の線材（２）を開放端より
適度の密度になるまで挿入し、該線材（２）が脱落しな
いように適当な位置でカシメ（３）を入れる。これをパ
イプ状治具（４）の一端に設けた保持金具（５）に挿入
して固定する。パイプ状治具（４）の他端にはホース継
手（６）を設はホース（７）により不活性ガス、例えば
窒素ボンベ（８）と接続し、窒素ガ゛スを図に示す矢印
方向に流し、パイプ状治具（４）を通して保護チューブ
（１）内を充満させ、そのまま窒素ガスを流し続けて保
護チューブ（１）の先端より噴出させる。このようにし
て保護チューブ（１）内の空気を排除した後、第３図に
示すように溶湯保持炉（９）の投入口（１０）に設けた
投入装置（１１）に取付けて溶湯（１２）中に保護チュ
ーブ（１）を挿入して、溶−ｆｉＡ （１２）中に合金
添加物を溶融せしめるものである。That is, as shown in FIGS. 1 and 2, the present invention includes an alloy additive, for example, as shown in the figures, in a protective tube (1) made of the same material as the molten metal or the base metal of the molten metal and which is open at both ends. Insert a slightly shorter alloy additive wire (2) from the open end until it reaches an appropriate density, and caulk (3) at an appropriate position to prevent the wire (2) from falling off. This is inserted and fixed into a holding fitting (5) provided at one end of the pipe-shaped jig (4). A hose joint (6) is installed at the other end of the pipe-shaped jig (4), and it is connected to an inert gas, such as a nitrogen cylinder (8), via a hose (7), and the nitrogen gas is supplied in the direction of the arrow shown in the figure. The inside of the protective tube (1) is filled through the pipe-shaped jig (4), and the nitrogen gas continues to flow until it is ejected from the tip of the protective tube (1). After eliminating the air in the protective tube (1) in this way, the molten metal (1) is attached to the charging device (11) provided at the charging port (10) of the molten metal holding furnace (9) as shown in ) into which the protective tube (1) is inserted to melt the alloy additives into the melt-fiA (12).
合金添加物としては線材の他、粉粒体、ナゲツト等保護
チューブ内に挿入できるものであれば形状を問わず使用
できる。保護チューブとしては例えば溶湯が銅又は銅合
金の場合には銅チューブを用い、溶湯が鉄又は鉄基合金
の場合には鉄チューブを用い、また溶湯がアルミニウム
又はアルミニウム合金の場合にはアルミニウムチューブ
を用いることが望ましい。また合金添加物が線状体の場
合には上記の如くチューブ開放端より適度な密度に挿入
して、線材が脱落しないように適当な位置でカシメを付
ける。合金添加物がナゲツト等の塊状のものは脱落しな
い程度に先端をカシメる。また合金添加物が粉粒体の場
合は先端に同材質のメツシュを取付けることにより、ガ
ス圧による粉粒体の飛散を防ぐとよい。As alloy additives, in addition to wire rods, any shape can be used as long as it can be inserted into the protective tube, such as powder or nuggets. As the protective tube, for example, if the molten metal is copper or copper alloy, use a copper tube, if the molten metal is iron or iron-based alloy, use an iron tube, and if the molten metal is aluminum or aluminum alloy, use an aluminum tube. It is desirable to use it. If the alloy additive is a wire, it is inserted into the open end of the tube at an appropriate density as described above, and caulked at an appropriate position to prevent the wire from falling off. If the alloy additive is in the form of a lump, such as a nugget, swage the tip to the extent that it does not fall off. If the alloy additive is powder or granule, it is preferable to attach a mesh made of the same material to the tip to prevent the powder from scattering due to gas pressure.
本発明は溶湯と同材質又はそのベース金属からなるチュ
ーブ内に、合金添加物を充填し、チューブ内に不活性ガ
ス、例えばＮ２ガスを流して残留空気を排除したもので
、チューブは大気を遮断すると同時に導入ガスの外部へ
の洩れを防ぐ。またチューブ内に不活性ガスを流入させ
ることにより、チューブ内の残留空気を排除して、空気
による合金添加物の酸化を完全に防ぐことができる。更
に溶湯中に挿入中もチューブ内に不活性ガスを流し続け
ることにより、溶湯表面と大気との境界部を不活性ガス
で覆うことができるため、特に酸化し易い添加物の添加
歩留りを従来方法に比較して著しく向上することができ
る。In the present invention, alloy additives are filled in a tube made of the same material as the molten metal or its base metal, and residual air is removed by flowing an inert gas, such as N2 gas, into the tube, and the tube blocks the atmosphere. At the same time, it prevents the introduced gas from leaking to the outside. Furthermore, by flowing an inert gas into the tube, residual air within the tube can be removed to completely prevent oxidation of the alloy additives due to air. Furthermore, by continuing to flow inert gas into the tube while it is inserted into the molten metal, the boundary between the molten metal surface and the atmosphere can be covered with inert gas, making it possible to reduce the addition yield of additives that are particularly susceptible to oxidation compared to conventional methods. can be significantly improved compared to
（実施例〕
外径３５＃、内径３３馴の銅製保護チューブを約２ｍの
長さに切断し、内部に直径４馴、長さ約１．８ｍのＭｇ
線を束ねて挿入し、Ｍｇ線の脱落を防ぐため銅製チュー
ブの適当な位置をプレスでカシメ、これを第１図及び第
２図に示すように他端にホースを取付けたパイプ状治具
に取付けた。このようにして１Ｋｇ／ｃｒＡの窒素ガス
を２０１／分の割で流しづつけ、そのままの状態で１分
間後に保持炉上部の投入口より銅溶湯中に挿入し、Ｍｇ
の添加歩留りを調べた。その結果Ｍｇの添加歩留りは９
０％以上であった。これは従来のＭｇ添加歩沼りが５０
％前俊であるのに比べ著しく改善されていることが判る
。(Example) A copper protective tube with an outer diameter of 35 mm and an inner diameter of 33 mm was cut into a length of about 2 m, and an Mg tube with a diameter of 4 mm and a length of about 1.8 m was placed inside.
Insert the wires in a bundle, caulk the copper tube at an appropriate position with a press to prevent the Mg wire from falling out, and insert it into a pipe-shaped jig with a hose attached to the other end as shown in Figures 1 and 2. Installed. In this way, nitrogen gas of 1 kg/crA was continuously flowed at a rate of 201/min, and after 1 minute, it was inserted into the molten copper from the inlet at the top of the holding furnace.
The addition yield was investigated. As a result, the Mg addition yield was 9
It was 0% or more. This is because the conventional Mg addition rate is 50
It can be seen that this is a marked improvement compared to %Mae Shun.
（発明の効果〕
このように本発明によれば合金添加物は保護チューブに
より大気と遮断され、同時に導入ガスの外部への洩れを
防ぎ、又合金添加物の形状がチューブ内に挿入出来るも
のであればその形状を問わない。またチューブ内に不活
性ガスを流入させることにより、チューブ内の残留空気
を排除し、空気による添加物の酸化を完全に防ぐことが
できる。更に投入中も流し続ける不活性ガスによって溶
湯表面と大気の境界部が不活性ガスで覆われるため、特
に酸化し易い添加物の添加歩留りが著しく向上する等工
業上顕著な効果を奏するものである。(Effects of the Invention) As described above, according to the present invention, the alloy additive is isolated from the atmosphere by the protective tube, and at the same time, the introduced gas is prevented from leaking to the outside, and the shape of the alloy additive is such that it can be inserted into the tube. If there is, it doesn't matter what shape it is in.Also, by flowing inert gas into the tube, residual air in the tube can be eliminated and oxidation of additives due to air can be completely prevented.Furthermore, the flow can be continued even during injection. Since the boundary between the molten metal surface and the atmosphere is covered with the inert gas, the inert gas produces significant industrial effects such as a marked improvement in the addition yield of additives that are particularly easily oxidized.
第１図は本発明添加方法の一例を示す説明図、第２図は
第１図の要部を拡大して示す断面図、第３図は本発明添
加方法の添加の一例を示す説明図である。
１、保護チューブ
２、合金添加物の線材
３、カシメ
４、パイプ状治具
５、保持金具
６、ホース継手
７、ホース
８、ガスボンベ
９、溶湯保持炉
１０、投入口
１１、投入装置
１２、溶湯
第１図
第３図FIG. 1 is an explanatory diagram showing an example of the addition method of the present invention, FIG. 2 is a cross-sectional view showing an enlarged main part of FIG. 1, and FIG. 3 is an explanatory diagram showing an example of the addition method of the present invention. be. 1, protective tube 2, alloy additive wire 3, caulking 4, pipe-shaped jig 5, holding fitting 6, hose joint 7, hose 8, gas cylinder 9, molten metal holding furnace 10, input port 11, input device 12, molten metal Figure 1 Figure 3
Claims (1)
方法において、溶湯と同材質又は溶湯のベース金属から
なるチューブ内に、合金添加物を充填し、チューブ内に
不活性ガスを流入して残留空気を排除した後、チューブ
を溶湯中に挿入して溶融することを特徴とする合金添加
物の添加方法。In the method of adding alloy additives to molten metal or molten alloy, the alloy additive is filled into a tube made of the same material as the molten metal or the base metal of the molten metal, and an inert gas is flowed into the tube. A method for adding alloy additives, which comprises inserting a tube into the molten metal and melting it after removing residual air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11786187A JPS63282219A (en) | 1987-05-14 | 1987-05-14 | Method for adding alloy additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11786187A JPS63282219A (en) | 1987-05-14 | 1987-05-14 | Method for adding alloy additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63282219A true JPS63282219A (en) | 1988-11-18 |
Family
ID=14722112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11786187A Pending JPS63282219A (en) | 1987-05-14 | 1987-05-14 | Method for adding alloy additive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63282219A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011202233A (en) * | 2010-03-25 | 2011-10-13 | Tokuriki Honten Co Ltd | TRACE ELEMENT-ADDED Ag ALLOY AND METHOD FOR PRODUCING THE SAME |
-
1987
- 1987-05-14 JP JP11786187A patent/JPS63282219A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011202233A (en) * | 2010-03-25 | 2011-10-13 | Tokuriki Honten Co Ltd | TRACE ELEMENT-ADDED Ag ALLOY AND METHOD FOR PRODUCING THE SAME |
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