JPH0334437B2 - - Google Patents
Info
- Publication number
- JPH0334437B2 JPH0334437B2 JP24767784A JP24767784A JPH0334437B2 JP H0334437 B2 JPH0334437 B2 JP H0334437B2 JP 24767784 A JP24767784 A JP 24767784A JP 24767784 A JP24767784 A JP 24767784A JP H0334437 B2 JPH0334437 B2 JP H0334437B2
- Authority
- JP
- Japan
- Prior art keywords
- flux
- cross
- steel ingot
- welding
- wire
- 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
Links
- 230000004907 flux Effects 0.000 claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 238000003466 welding Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 238000005097 cold rolling Methods 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 238000007747 plating Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 description 12
- 238000005491 wire drawing Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 238000005098 hot rolling Methods 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、継目のない溶接用フラツクス入りワ
イヤの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing seamless welding flux-cored wire.
フラツクス入りワイヤは溶接作業性にすぐれ、
特に半自動、自動溶接において安定したアークで
外観のよいビードが得られることから広く用いら
れている。
Flux-cored wire has excellent welding workability,
It is widely used, especially in semi-automatic and automatic welding, because it produces a bead with a good appearance using a stable arc.
フラツクス入りワイヤの製造法としては
(1) 帯鋼を管状に整形しつつフラツクスを充填し
所定断面まで伸線する。たとえば特開昭58−
112694に開示される技術と、
(2) あらかじめ整形された管の中にフラツクスを
充填した後伸線する技術、たとえば特開昭58−
154496、58−181496
とに大別される。 The method for manufacturing flux-cored wire is as follows: (1) A steel strip is shaped into a tubular shape, filled with flux, and drawn to a predetermined cross section. For example, JP-A-58-
112694, and (2) a technique of filling a pre-shaped tube with flux and then drawing it, for example, Japanese Patent Laid-Open No. 11269-
It is roughly divided into 154496 and 58-181496.
上記(1)による方法ではフラツクス入りワイヤの
製造は比較的容易であるが、断面形状が第２図、
または第３図のごとくになつているので、使用中
フラツクスが漏れる問題、あるいは吸湿し易い欠
点がある。 Although it is relatively easy to manufacture flux-cored wire using method (1) above, the cross-sectional shape is as shown in Figure 2.
Otherwise, as shown in Fig. 3, there is a problem that flux leaks during use or that it easily absorbs moisture.
また上記(2)の方法では第４図に示すように周囲
がシールドされたチユーブ構造であるため、フラ
ツクス漏れや吸湿の問題はないが製造方法と溶接
作業性に問題がある。このチユーブラーワイヤを
得る方法として特開昭45−30937や特開昭58−
154496が開示されているが、いずれもコイル状に
巻いた管にフラツクスを充填し、冷間伸線してワ
イヤを得ている。このような製造方法では長い細
管にフラツクスを充填するための製造能率に劣
る。さらに特開昭54−32743ではフラツクスを充
填した鋼管をインゴツトケースに起立せしめ、周
囲に注湯してフラツクス内包鋼塊を得ているが、
欠陥のない鋼塊を得るためには注湯温度を1600℃
以上にせざるを得ず、実用に耐えるフラツクスを
用いると注湯凝固中にフラツクスが溶融してしま
い実用化は困難である。 Further, in the method (2) above, since the tube structure has a shielded periphery as shown in FIG. 4, there are no problems with flux leakage or moisture absorption, but there are problems with the manufacturing method and welding workability. As a method for obtaining this tubular wire, JP-A-45-30937 and JP-A-58-
No. 154496 is disclosed, but in both cases, a wire is obtained by filling a coiled tube with flux and cold drawing it. In this manufacturing method, the manufacturing efficiency for filling a long thin tube with flux is poor. Furthermore, in JP-A-54-32743, a steel tube filled with flux is made to stand up in an ingot case, and a steel ingot containing flux is obtained by pouring molten metal around it.
To obtain a defect-free steel ingot, the pouring temperature should be 1600℃.
If a flux that is suitable for practical use is used, the flux will melt during pouring and solidification, making it difficult to put it to practical use.
これらの欠点を補うべく特開昭58−181496では
直径50φ以上の鋼管中にフラツクスを充填し、熱
延、冷延後表面処理する方法が示されている。こ
の方法はフラツクスの充填もやさしく、製造中フ
ラツクスが加熱される温度も低いため実用に供す
ることのできるフラツクスを充填することがで
き、有効である。しかし、このようなフラツクス
入りワイヤは溶接作業性に問題がある。すなわち
この方法は管から圧延するため、断面は第４図の
ごとくにならざるを得ず、溶接中アーク４は外周
部の金属部２のみから発生し、中心部のフラツク
ス１が未溶融のまま突出し、第５図のような電極
端形状となる。この未溶融フラツクス３が溶融池
に突込むと、スラグまきこみ等の欠陥を生じるの
で溶接条件範囲が狭く、半自動溶接で溶接工の熟
練度によつて欠陥発生頻度が左右される欠点があ
る。 In order to compensate for these drawbacks, JP-A-58-181496 discloses a method in which a steel pipe with a diameter of 50φ or more is filled with flux and the surface is treated after hot rolling or cold rolling. This method is effective because it is easy to fill the flux, and the temperature at which the flux is heated during production is low, so that it can be filled with flux that can be used for practical purposes. However, such flux-cored wires have problems in welding workability. In other words, since this method involves rolling from a tube, the cross section must be as shown in Figure 4, and during welding the arc 4 is generated only from the outer metal part 2, and the flux 1 in the center remains unmelted. It protrudes and becomes the shape of the electrode end as shown in FIG. If this unmelted flux 3 penetrates into the molten pool, defects such as slag incorporation will occur, so the range of welding conditions is narrow, and the frequency of defect occurrence in semi-automatic welding depends on the skill level of the welder.
溶接時未溶融フラツクスが突出する原因はアー
クが周囲の金属部のみから発生すること、フラツ
クスが最も溶けにくい円形断面を有することにあ
る。
The reason why unmelted flux protrudes during welding is that the arc is generated only from the surrounding metal parts, and that the flux has a circular cross section that is most difficult to melt.
フラツクスの断面形状を円形でなくするために
は、鋼塊断面が円形であつても、たとえば第６図
のごとき異形の穴をあければよいが、円形断面以
外の穴は、穴あけ加工に費用を要し実用的でな
い。 In order to make the cross-sectional shape of the flux not circular, even if the cross-section of the steel ingot is circular, it is sufficient to drill a hole of an irregular shape as shown in Fig. 6, but holes with a cross-section other than a circular cross-section require additional drilling costs. expensive and impractical.
本発明は、簡易な方法によつてフラツクス入り
ワイヤ中に内包されるフラツクスの横断面形状を
円形ではない不整形としたフラツクス入りワイヤ
の製造方法を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a flux-cored wire in which the cross-sectional shape of the flux contained in the flux-cored wire is not circular but irregular by a simple method.
上記問題を解決するため本発明では円形断面の
穴をあけ、かつ、伸線後ワイヤのフラツクス断面
形状を円形でなくするため、角形断面の鋼塊に円
形の穴をあけ圧延中に外形を円形断面にする。こ
の方法では圧延ロールの形状によつてワイヤ横断
面の形状は第１図に例示したごとくにさまざまに
変化させることができる。
In order to solve the above problems, in the present invention, a hole with a circular cross section is made, and in order to make the cross-sectional shape of the flux of the wire non-circular after wire drawing, a circular hole is made in a steel ingot with a square cross section, and the outer shape is changed to a circular shape during rolling. Make it a cross section. In this method, the cross-sectional shape of the wire can be varied in various ways as illustrated in FIG. 1, depending on the shape of the rolling rolls.
フラツクス部の面積が全断面積の30％である管
および角鋼塊から1.6mmφのワイヤを製作し、電
流250A、電圧24V、速度15cm／minの条件で溶接
し、電極先端の形状を観察した結果は次の通りで
ある。 A wire of 1.6 mmφ was made from a tube and a square steel ingot whose flux area was 30% of the total cross-sectional area, welded at a current of 250 A, a voltage of 24 V, and a speed of 15 cm/min, and the shape of the electrode tip was observed. is as follows.
） 圧延前鋼塊を矩形断面の角鋼塊としワイヤ
断面形状を第１図ａ，ｂ，ｃとしたとき、電極
先端形状は正常であつた。) When the steel ingot before rolling was a square steel ingot with a rectangular cross section and the cross-sectional shapes of the wires were as shown in FIG. 1 a, b, and c, the electrode tip shape was normal.
） 圧延前鋼塊を80mmφ×厚18mmｔの管状鋼塊
とし、ワイヤ断面形状を第４図とした場合、電
極先端形状は第５図のようにフラツクス３が突
出した形状となつた。) When the pre-rolled steel ingot was a tubular steel ingot with a diameter of 80 mm and a thickness of 18 mm, and the cross-sectional shape of the wire was as shown in FIG. 4, the tip of the electrode had a shape in which the flux 3 protruded as shown in FIG.
第７図に示すように、長辺L1、短辺L2なる角
形鋼塊に半径ｒ（何れも単位はcm）の穴を穿孔し
て、フラツクスを充填した後圧延する場合、肉厚
一定の管を用いる場合に比べてやや圧延が難し
く、鋼塊断面形状に制限を受けることになる。 As shown in Fig. 7, when a hole of radius r (all units are cm) is drilled in a rectangular steel ingot with long side L 1 and short side L 2 and rolled after being filled with flux, the wall thickness is constant. Rolling is a little more difficult than when using a steel tube, and there are restrictions on the cross-sectional shape of the steel ingot.
まず第１に外周と内孔表面で挾まれる鋼塊の肉
厚ｔがあまりに薄いと圧延、伸線において最も薄
い厚の部分から割れが入り、圧延や伸線が不可能
となる。この最小肉厚は圧延ロール形状によつて
変化するが、鋼塊に穿設した穴の半径ｒの20％は
必要である。従つて、第７図から、
ｔ＝（L2−2r）／２≧0.2r
L2／ｒ≧2.4が得られる。 First of all, if the wall thickness t of the steel ingot sandwiched between the outer periphery and the inner hole surface is too thin, cracks will appear from the thinnest part during rolling and wire drawing, making rolling and wire drawing impossible. This minimum thickness varies depending on the shape of the rolling roll, but is required to be 20% of the radius r of the hole drilled in the steel ingot. Therefore, from FIG. 7, it is obtained that t=(L 2 -2r)/2≧0.2r L 2 /r≧2.4.
つぎに穴の断面積が全鋼塊断面積（穴の断面積
を含む）に比較して大きすぎると、熱間圧延や冷
間伸線時に断線を起こす。これを防ぐためには伸
線中の引張張力を負担する外周金属部の面積が全
体断面積の60％をこえる必要がある。すなわち、
穴の面積率は40％以下でなければならない。また
穴断面積が極端に小さいとフラツクス量が不足し
て本願の目的であるフラツクス入りワイヤとして
の特性が発揮できないので穴の最小面積は鋼塊全
断面積の８％以上とする。従つて、
0.08≦πr2／（L1×L2）≦0.4
とした。 Next, if the cross-sectional area of the hole is too large compared to the cross-sectional area of the entire steel ingot (including the cross-sectional area of the hole), wire breakage will occur during hot rolling or cold wire drawing. In order to prevent this, the area of the outer peripheral metal part that bears the tensile force during wire drawing must exceed 60% of the entire cross-sectional area. That is,
The area ratio of holes must be 40% or less. Furthermore, if the cross-sectional area of the hole is extremely small, the amount of flux will be insufficient and the characteristics of the flux-cored wire, which is the object of this application, cannot be exhibited, so the minimum area of the hole should be 8% or more of the total cross-sectional area of the steel ingot. Therefore, 0.08≦πr 2 /(L 1 ×L 2 )≦0.4.
なお、鋼塊断面積はフラツクスが容易に充填で
きる限りいくらでも良いが、工業的規模で考える
と25cm2以上にしないと製造能率の点で不利とな
る。従つて、
L1×L2＞25
とした。 The cross-sectional area of the steel ingot may be any size as long as it can be easily filled with flux, but on an industrial scale, it will be disadvantageous in terms of manufacturing efficiency unless it is 25 cm 2 or more. Therefore, L 1 ×L 2 >25.
以上の条件が満たされればフラツクス内包角断
面鋼塊から熱間圧延にて円形断面の棒鋼を製造す
ることが可能であるが、この棒鋼ではすでにフラ
ツクスが円形断面でないため、管から熱間圧延し
て得た棒鋼に比べ冷間圧延が難しく断線しやす
い。このような場合には冷間伸線の途中で表面に
メツキを含む表面処理を行なうことが有効で、さ
らに難圧延の場合、中間焼鈍時に雰囲気の酸素分
圧を調整する等によつて、表面の粒界酸化を促進
しワイヤ表面に亀裂を生じせしめ、これに潤滑剤
を大量に含ませると良い。 If the above conditions are met, it is possible to hot-roll a steel bar with a circular cross section from a flux-included rectangular cross-section steel ingot, but since the flux in this steel bar already has a non-circular cross-section, it is necessary to hot-roll it from a tube. It is difficult to cold-roll and easily breaks compared to steel bars obtained from conventional methods. In such cases, it is effective to perform surface treatment, including plating, on the surface during cold wire drawing, and in the case of difficult rolling, the surface may be improved by adjusting the oxygen partial pressure in the atmosphere during intermediate annealing. It is better to promote grain boundary oxidation and cause cracks on the wire surface, and to add a large amount of lubricant to the wire surface.
また鋼塊が正確に矩形であることは必要としな
い。 Furthermore, it is not necessary that the steel ingot be exactly rectangular.
実施例 １
縦、横８cmの正方形断面を有する軟鋼鋼塊に半
径２cmの穴を断面中央、全長にわたつて設け（穴
面積／全断面積＝0.2）、TiO2、SiO2、Si、Mnを
主成分とするフラツクスを充填した後鋼塊両端を
溶接でふさぎ６mmφまで熱間圧延した後、1.6mm
φまで冷間圧延し、メツキを施した。電流300A、
電圧28V、速度20cm／minの条件でCO2溶接した
が、フラツクスの突出しは全くめられずアークも
安定していた。
Example 1 A hole with a radius of 2 cm was provided in the center of the cross section over the entire length of a mild steel ingot with a square cross section of 8 cm in length and width (hole area/total cross sectional area = 0.2), and TiO 2 , SiO 2 , Si, and Mn were injected into the ingot. After filling the steel ingot with flux, which is the main component, welded both ends of the steel ingot and hot-rolled it to a diameter of 6 mm.
It was cold rolled to φ and plated. Current 300A,
CO 2 welding was performed at a voltage of 28V and a speed of 20cm/min, but no flux protrusion was observed and the arc was stable.
実施例 ２
15cmと18cmを２辺とする矩形断面の軟鋼鋼塊に
半径5.5cmの穴を設け、実施例１と同じフラツク
スを充填後熱間、冷間圧延にて1.6mmφのワイヤ
を得た。溶接作業性は実施例１と同じく良好であ
つた。Example 2 A hole with a radius of 5.5 cm was made in a mild steel ingot with a rectangular cross section of 15 cm and 18 cm on two sides, and after filling with the same flux as in Example 1, a wire with a diameter of 1.6 mm was obtained by hot and cold rolling. . Welding workability was as good as in Example 1.
同一穴径で断面長辺を18.5cm、短辺を13cmとす
る鋼塊を10mmφまで熱間圧延したところ、内部か
らわれが生じた。最小肉圧が穴半径の18％となつ
たためと考えられる。 When a steel ingot with the same hole diameter and a cross-sectional long side of 18.5 cm and short side of 13 cm was hot rolled to a diameter of 10 mm, cracks appeared from the inside. This is thought to be because the minimum wall pressure was 18% of the hole radius.
実施例 ３
実施例２と同様の形状であるがM0を0.3％含む
鋼塊を用いて圧延実験を行なつたところ、冷間圧
延時破断した。３mmφまで圧延して焼鈍後メツキ
を施し再度冷間伸線したところ1.6mmまで圧延で
きた。さらに圧延を続けたところ1.4mmφで破断
した。そこで、３mmφまで伸線後露点30℃のN2
ガスを用い、750℃で１時間焼鈍後冷間圧延した
ところ1.0mmφまで圧延できた。電流200A、電圧
24V、速度30cm／minの条件でC2溶接を行なつた
が、フラツクスの突出しもなく安定した溶接がで
きた。Example 3 When a rolling experiment was conducted using a steel ingot having the same shape as in Example 2 but containing 0.3% M 0 , it broke during cold rolling. When the wire was rolled to 3 mmφ, annealed, plated, and cold drawn again, it was able to be rolled to 1.6 mm. When rolling was continued, it broke at a diameter of 1.4 mm. Therefore, after drawing the wire up to 3 mmφ, N 2 with a dew point of 30°C was used.
When the material was annealed using gas at 750°C for 1 hour and then cold rolled, it could be rolled to a diameter of 1.0 mm. Current 200A, voltage
C2 welding was carried out under the conditions of 24V and a speed of 30cm/min, and stable welding was achieved with no flux protrusion.
本発明によれば、帯鋼を整形して製造するフラ
ツクス入りワイヤの欠点である吸湿しやすい、あ
るいはメツキができないといつた間題を解決し、
また、フラツクス内包管を圧延することによつて
製造されたワイヤに特有の未溶融フラツクスの突
出しの問題も防止でき、フラツクス内包型ワイヤ
の特徴であるすぐれた溶接作業性をさらに高める
ことができる。一方、製造方法としても鋼塊単重
を大きくできること、フラツクスの充填が容易で
あることから大量生産に向く方法であり、本発明
の工業的価値はきわめて大きい。
According to the present invention, the disadvantages of flux-cored wire manufactured by shaping steel strips, such as the fact that they tend to absorb moisture and cannot be plated, are solved,
Furthermore, the problem of protrusion of unmelted flux, which is peculiar to wires manufactured by rolling a flux-encased tube, can be prevented, and the excellent welding workability that is characteristic of flux-encased wires can be further enhanced. On the other hand, as a manufacturing method, the steel ingot unit weight can be increased and flux filling is easy, so it is a method suitable for mass production, and the industrial value of the present invention is extremely large.
第１図は本発明によつて製造したフラツクス入
りワイヤの例の横断面図、第２図、第３図、第４
図は従来法によるフラツクス入りワイヤの横断面
図、第５図は第４図の断面を有するワイヤを用い
て溶接する際に発生する未溶融フラツクスの突出
しを示す説明図、第６図は本願と同様の効果を得
るための丸型断面鋼塊の横断面図、第７図は本発
明の作用説明図である。
１……フラツクス、２……外周金属部、３……
未溶融フラツクス、４……溶接アーク。
FIG. 1 is a cross-sectional view of an example of a flux-cored wire manufactured according to the present invention, FIGS. 2, 3, and 4.
The figure is a cross-sectional view of a flux-cored wire according to the conventional method, Figure 5 is an explanatory diagram showing the protrusion of unmelted flux that occurs when welding using a wire having the cross section of Figure 4, and Figure 6 is a cross-sectional view of a flux-cored wire according to the present invention. FIG. 7 is a cross-sectional view of a round cross-section steel ingot for obtaining a similar effect, and is an explanatory view of the operation of the present invention. 1...Flux, 2...Outer metal part, 3...
Unmelted flux, 4...Welding arc.
Claims (1)
矩形の断面を有する鋼塊に半径ｒ（cm）の穴を、
L1，L2、ｒが下記の関係を満たすようにほぼ鋼
塊全長にわたつて穿設し、この穴にフラツクスを
充填した後、熱間圧延、冷間圧延、メツキ処理を
施すことを特徴とする溶接用フラツクス入りワイ
ヤの製造方法。 L2／ｒ≧2.4 0.08≦πr2／（L1×L2）≦0.4 L1×L2＞25 ２ 冷間圧延途中でメツキ処理を施すことを特徴
とする特許請求の範囲第１項に記載の溶接用フラ
ツクス入りワイヤの製造方法。 ３ 冷間圧延途中で焼鈍中に粒界酸化を促進さ
せ、つぎの冷間圧延工程でワイヤ表面に亀裂を生
じせしめることを特徴とする特許請求の範囲第１
項に記載の溶接用フラツクス入りワイヤの製造方
法。[Claims] 1. A hole with radius r (cm) is formed in a steel ingot having a substantially rectangular cross section with the long side L 1 (cm) and the short side L 2 (cm),
A hole is drilled over almost the entire length of the steel ingot so that L 1 , L 2 , and r satisfy the following relationship, and after filling the hole with flux, it is hot rolled, cold rolled, and plated. A method for manufacturing flux-cored wire for welding. L 2 /r≧2.4 0.08≦πr 2 /(L 1 ×L 2 )≦0.4 L 1 ×L 2 >25 2. Claim 1, characterized in that plating treatment is performed during cold rolling. A method for manufacturing the described flux-cored wire for welding. 3. Claim 1, characterized in that grain boundary oxidation is promoted during annealing during cold rolling, and cracks are generated on the wire surface in the next cold rolling process.
A method for producing a flux-cored wire for welding as described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24767784A JPS61126994A (en) | 1984-11-22 | 1984-11-22 | Manufacture of wire containing flux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24767784A JPS61126994A (en) | 1984-11-22 | 1984-11-22 | Manufacture of wire containing flux |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61126994A JPS61126994A (en) | 1986-06-14 |
| JPH0334437B2 true JPH0334437B2 (en) | 1991-05-22 |
Family
ID=17167004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24767784A Granted JPS61126994A (en) | 1984-11-22 | 1984-11-22 | Manufacture of wire containing flux |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61126994A (en) |
-
1984
- 1984-11-22 JP JP24767784A patent/JPS61126994A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61126994A (en) | 1986-06-14 |
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