JPS6021196A - End tab for welding - Google Patents

End tab for welding

Info

Publication number
JPS6021196A
JPS6021196A JP12979083A JP12979083A JPS6021196A JP S6021196 A JPS6021196 A JP S6021196A JP 12979083 A JP12979083 A JP 12979083A JP 12979083 A JP12979083 A JP 12979083A JP S6021196 A JPS6021196 A JP S6021196A
Authority
JP
Japan
Prior art keywords
welding
end tab
solid flux
bead
groove
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.)
Granted
Application number
JP12979083A
Other languages
Japanese (ja)
Other versions
JPH0364237B2 (en
Inventor
Yoshio Kanbe
神戸　良雄
Kozo Yamashita
山下　礦三
Kazuo Nagatomo
長友　和男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP12979083A priority Critical patent/JPS6021196A/en
Publication of JPS6021196A publication Critical patent/JPS6021196A/en
Publication of JPH0364237B2 publication Critical patent/JPH0364237B2/ja
Granted legal-status Critical Current

Links

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
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • 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
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings or fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/3601—Selection of non-metallic compositions, e.g. coatings or fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
    • B23K35/3607—Silica or silicates

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

PURPOSE:To provide a titled end tab which has good bead formability and can reduce considerably the time for welding operation by using a refractory solid flux compsn. in which the respective contents and total content of SiO2, Al2O3 and MgO are specified and the apparent porosity is specified. CONSTITUTION:Materials 1, 1' to be welded are butted to each other and a groove 2 is formed by using a backing strip 9. An end tab 3 of this invention is pressed to the groove 2. The tab 3 is pressed and supported in the central direction of the groove by tightening the bolts 8 of a supporting fixture consisting of magnets 4, 4', nuts 7 provided to the center of leaf springs 5, bolts 8 and stoppers 6 and thereafter the groove is welded. The refractory solid flux compsn. constituting the end tab 3 in this case is specified to 45-75wt% SiO2, 15- 40wt% Al2O3 and 5-30wt% MgO, and the total content thereof is specified to >=90wt% and the apparent porosity to 5-40%. The flux having the above-described compsn. is in the lowest m.p. region of 1,350-1,500 deg.C, has the role of a refractory material and the function as a bead forming layer in combination and provides the end tab for welding having good bead formability.

Description

【発明の詳細な説明】 （浬業上の利用分野） 本発明は相対向する被溶接部材を突合せ溶接するに当り
、開先線上の被溶接部材端面に当てかう溶接用エンドタ
ブに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Application in the Construction Industry) The present invention relates to a welding end tab that is applied to the end face of a welded member on a groove line when butt welding opposing welded members.

（従来技術とその問題点） 従来、被溶接部の開先を相対して突合せ、この開先部を
溶接する場合には、被溶接部の長さにかかわらず、＄、
溶接部材開先線上端面に、被溶接部材と同材質のものを
小分割した通常エンドタブと呼ばれる端板あるいは捨板
を当てがい、これらエンドタブを含む全長の溶接を行な
い、最終的な仕上げとしてこのエンドタブを除去するよ
うにしていた。(Prior art and its problems) Conventionally, when the grooves of the welded parts are butted against each other and the grooves are welded, regardless of the length of the welded parts, $,
An end plate or waste plate, usually called an end tab, which is made of the same material as the welded member and is subdivided, is applied to the upper end surface of the groove line of the welding member, and the entire length including these end tabs is welded, and as a final finish, this end tab is I was trying to remove it.

しかし、か＼る方法では、エンドタブの取付や除去に相
当の時間がとられる。即ち、長尺の被溶接部材では、そ
の数が余り多くないのでエンドタブの準備、取付け、そ
の除去および仕上げ等の所要時間は、溶接作業全体に占
める割合が比較的少ないが、短尺の被溶接部材では溶接
長さが短かい為、その個所の溶接時間は比較的短時間で
あるものの、−短尺の被溶接部材を多く用いる大型構造
物となると、溶接個所が数千という莫大な数になるため
、エンドタブも数が多く、その準備、取付け。However, with this method, it takes a considerable amount of time to attach and remove the end tabs. In other words, for long workpieces, the number of end tabs is not very large, so the time required for preparing, installing, removing, and finishing the end tabs accounts for a relatively small proportion of the total welding work. Since the welding length is short, the welding time at that location is relatively short; however, when it comes to large structures that use many short welded parts, there are thousands of welding locations. , There are many end tabs, and their preparation and installation.

除去および仕上げ等の付帯作業の時間比が大きくなシ、
非常に効率が悪くなる欠点がある。また高張力鋼を溶接
する場合では、エンドタブと仮付ビード部の跡が硬化す
るアークストライク状の欠陥を呈し、これによって溶接
継手性能、特に曲げ強度や疲労強度が低下するという欠
点もある。Where the time ratio of ancillary work such as removal and finishing is large,
It has the disadvantage of being extremely inefficient. In addition, when welding high-strength steel, the marks of the end tab and tack bead portion harden, resulting in an arc strike-like defect, which also has the disadvantage of reducing the performance of the welded joint, especially the bending strength and fatigue strength.

ところで、エンドタブの準備、取付け、除去及び仕上げ
等の手間を省略させることによる溶接作業時間の短縮−
及びアークストライク等の欠陥をなくすことによる溶接
性能の向上を目的として。By the way, welding work time can be shortened by omitting the labor of preparing, attaching, removing and finishing end tabs.
and to improve welding performance by eliminating defects such as arc strikes.

！１′す公昭４．８−２８５４５号公報では、従来の被
溶接部材と同質の端板又は捨板に代えてシリカ、ジルコ
ニヤ、アルミナ、マグネシア系の金属酸化物を主成分と
した耐火性固形物で、しかも常温での熱伝導率が１．２
〜１０．６　Ｋｃａｌ／ｍ−ｈｒ・℃　の高熱伝導性固
形フラックスに、任意形状の空隙を穿設した溶接用エン
ドタブが提案されている。! 1' Publication No. 4.8-28545 discloses that in place of conventional end plates or waste plates that are the same as those of the welded parts, a refractory solid material mainly composed of silica, zirconia, alumina, or magnesia-based metal oxides is used. Moreover, the thermal conductivity at room temperature is 1.2.
A welding end tab has been proposed in which a void of an arbitrary shape is bored in a highly thermally conductive solid flux of ~10.6 Kcal/m-hr·°C.

しかしなからかＮるエンドタブは耐火性金属酸化物ある
いは、これに鉄粉を混合したものを使用するので、エン
ドタブ部で形成されるビード形状は、ビード端面部でビ
ードとビード、の重なり部に滑らかさを欠いたり、ある
いは滑らかさを欠いたビードとビードの重なり間に、一
部溶接用エンドタプの溶融したスラグが食い込んだり、
焼付いたりすることがあり、そのため食い込んだスラグ
を取除くためのガウジング及び補修溶接作業、ビード外
観不良を良くするためのグラインダ一作業を行なわなけ
ればならないため、折角端板の取付けを省略した効果が
薄らぐという欠点が生じている。However, because the end tabs used for some reason are made of refractory metal oxide or a mixture of iron powder, the bead shape formed at the end tabs is formed at the overlapping part of the bead at the end surface of the bead. Some of the molten slag from the welding end tape may get stuck between the beads that lack smoothness or overlap between beads that lack smoothness.
Therefore, gouging and repair welding work must be performed to remove the embedded slag, and grinding work must be performed to improve the appearance of the bead. The drawback is that it fades.

（本発明の目的） 従来のタブ材における固形フラックスの役割は。(Object of the present invention) What is the role of solid flux in conventional tab materials?

耐火材であり、ビード形成層としての機能を併せ持つも
のは殆んどない。従って固形フラックス組成も融点が１
７００℃以上の胃耐火性組成物が多く、この種のタブ材
を用いて溶接を行なうと、ビードのなじみ性が不良で、
良好なビードは形成されにくい。この点をふまえて固形
フラックス性状を検討したところ、ある程度タブ材が浴
融する方が、ビードの均一性、ビードのなじみ性、およ
び表面光沢などのいわゆるビード形成性の点で良好であ
ることを確認し、これに基づきビード形成性の良好な溶
接用エンドタブを提供するものである。There are almost no refractory materials that also function as a bead forming layer. Therefore, the solid flux composition also has a melting point of 1.
There are many gastric refractory compositions that are resistant to temperatures of 700℃ or higher, and when welding is performed using this type of tab material, the bead conformability is poor,
Good beads are difficult to form. Considering this point, we investigated the properties of solid flux and found that it is better to melt the tab material to some extent in terms of so-called bead formation properties such as bead uniformity, bead conformability, and surface gloss. Based on this, we provide a welding end tab with good bead forming properties.

（発明の構成１作用、効果） 本発明の要旨とするところは、耐火性固形フラックス組
成が８１’Ｏ□：４５　＋７７０　ｗｔ％、　Ａｎ２０
３：１５−４０ｗｔ％、ＭｆＯ：　５〜３０ｗｔ％　で
あり、見掛気孔率が５〜４０％であることを特徴とする
溶接用エンドタブである。(Invention Structure 1 Functions and Effects) The gist of the present invention is that the refractory solid flux composition is 81'O□:45 +770 wt%, An20
3:15-40 wt%, MfO: 5-30 wt%, and an apparent porosity of 5-40%.

以下に本発明の詳細な説明する。The present invention will be explained in detail below.

第１図、第２図に示す如く、被溶接部材ｌ、１′を相対
向して突合せ義当金９を用いて開先２を形成し１本発明
のエンドタブ３を開先２側端に接する如くして当てがい
、マグネツ）４．４’−板バネ５の中央に設けたナツト
７、ボルト８．止具６からなる支持治具のボルト８を締
付けて、エンドタブを開先２中央方向に抑圧支持したの
ち、開先溶接を行なう。As shown in FIGS. 1 and 2, the parts to be welded 1 and 1' are faced to each other, and a groove 2 is formed using a butt metal 9. 4.4' - Nut 7 and bolt 8 provided in the center of the plate spring 5. After the bolt 8 of the support jig consisting of the stopper 6 is tightened to suppress and support the end tab toward the center of the groove 2, groove welding is performed.

本発明において、固形フラックス組成を５ｉ０２：４５
−７０ｗｔ％、Ａ１２０３：　１５〜４０　ｖｒｔ　％
　、ＭｙＯ：５〜３０　ｗｔ％に限定したのは、この範
囲がＳｉ　０２−ＡＱ□０３−　ＭｆＯ系絹成中、融点
が１３５Ｑ℃〜１５００℃と最も低い領域であり、耐火
材としての役割とビード形成層としての機能を併せ持つ
ことが、実験結果より明らかになったからである。In the present invention, the solid flux composition is 5i02:45
-70wt%, A1203: 15-40 vrt%
, MyO was limited to 5 to 30 wt% because this range has the lowest melting point of 135Q℃ to 1500℃ in Si02-AQ□03-MfO silk formation, and it also plays a role as a refractory material. This is because experimental results have revealed that it also has the function of a bead forming layer.

即ち上記範囲の組成の固形フラックスを用いることによ
り、比較的低入熱の下向、横向溶接の場合でも、ビード
と接する部分が一部溶融スラグ化し、スラグ層となって
ビードを保護するためなじみが良好で、光沢のある均一
など一ドが得られる。In other words, by using a solid flux with a composition within the above range, even in the case of downward or lateral welding with relatively low heat input, the part in contact with the bead partially turns into molten slag, forming a slag layer that protects the bead. A uniform, glossy, and uniform finish can be obtained.

上記範囲をはずれると融点が高くなって耐火性は向上す
るが、固形フラックスが殆んど溶融されなくなり、スラ
グ層が不足するため、ビードのなじみが不良になったり
、オーバランプ状のビードになる。従って固形フラック
ス組成はＳｉＯ□：４５〜７０　ｗｔ　％　＋　ＡＡ２
０３　：１５〜４０　ｗｔ％、ＭｙＯ：５−３０　ｗｔ
チとした。If it is out of the above range, the melting point will be high and the fire resistance will be improved, but the solid flux will hardly be melted and the slag layer will be insufficient, resulting in poor bead conformation or over-ramp shaped beads. . Therefore, the solid flux composition is SiO□: 45-70 wt% + AA2
03: 15-40 wt%, MyO: 5-30 wt
It was hot.

次に本発明タブ材の固形フラックス見掛気孔率は５〜４
０％に限定する。ここでいう見掛気孔率とは下記の方法
で測定した値を言う。Next, the apparent porosity of the solid flux of the tab material of the present invention is 5 to 4.
Limited to 0%. The apparent porosity here refers to a value measured by the following method.

Ｗ、−Ｗ２ ここでＷｌ：　固形フラックスの乾燥重量（ｆＩ）Ｗ２
：飽水させた固形フラックスの水中重量（２） Ｗ３：　飽水させた固形フラックスの生中重量（２） 固形フラックスの見掛気孔率が４０％以上になると、固
形フラックスの溶融量が著しく増加するため−ビード過
大となり、アンダーカントを生ずる他、スパッターの多
発や浴接条件範囲が狭くなるなど１作業性が劣化するの
で好ましくない。W, -W2 where Wl: Dry weight of solid flux (fI) W2
: Weight of saturated solid flux in water (2) W3: Weight of saturated solid flux in water (2) When the apparent porosity of solid flux becomes 40% or more, the amount of melted solid flux increases significantly. This is undesirable because the bead becomes too large and undercant occurs, and workability deteriorates, such as frequent spatter and a narrow bath contact condition range.

見掛気孔率が５φ以下ではタブ材の耐火度は向上するが
、固形フラツクスの溶融量が殆んどなく。When the apparent porosity is less than 5φ, the fire resistance of the tab material improves, but the amount of melted solid flux is almost negligible.

スラグ層が形成されないため、オーバーラツプ等の欠陥
が出てビード形状が悪化する。従って固形フラツクスの
見掛気孔率は５〜４０％とする。Since a slag layer is not formed, defects such as overlap occur and the bead shape deteriorates. Therefore, the apparent porosity of the solid flux is 5 to 40%.

次に実施例および比較例を用いて、本発明の効果をさら
に具体的に説明する。Next, the effects of the present invention will be explained in more detail using Examples and Comparative Examples.

実施例 第１表に５ｉ０２−ＡＱ２０３−　ＭｙＯ系の試作タブ
材の構成、浴接条件および試験結果を一括して示す。同
表においてｔ−α１−Ｎα７が本発明エンドタブ材の実
施例であり−Ｎ［１８〜Ｎｌ１２０が比叔例で９本発明
エンドタブ材の構成条件を満たしていない例である。Example Table 1 shows the configuration, bath contact conditions, and test results of the 5i02-AQ203-MyO-based prototype tab material. In the same table, t-α1-Nα7 is an example of the end tab material of the present invention, and -N[18 to Nl120 are comparative examples that do not satisfy the structural conditions of the end tab material of the present invention.

本発明エンドタブ利の実施例であるＮｕ　１−　Ｎα７
は、アンダーカッｌ−、オーバラップ等の欠陥がなく、
表τｆ＋ｉ光沢の良い良好外ビート形状が得られている
。しかし階８の８１０２　が下限以下では固形フラック
スの溶融量がやや少ないため、オーバーランプ状のビー
ドとなった。Ｎ［Ｌ　９の８１０２　が上限以上では、
固形フラックスの溶融量が少ないためビードのなじみが
やや悪く、オーバーラツプ状のビードとなった。Nu 1-Nα7 which is an embodiment of the end tab of the present invention
There are no defects such as undercuts or overlaps,
Table τf+i A good outer bead shape with good gloss is obtained. However, when 8102 on floor 8 was below the lower limit, the amount of melted solid flux was somewhat small, resulting in an overlamp-shaped bead. If N[L 9 of 8102 is above the upper limit,
Because the amount of melted solid flux was small, the beads did not fit well, resulting in overlapping beads.

Ｎａ　１０のＡｆ１２０．か上限以上では、固形フラッ
クスの溶融量が少ないブこめ、ビードが不均一でオーバ
ーラツプ状のビードとなった。Ｎ［ｌ　１１のＡ９．２
０３が下限以下では、開先端部近傍のアーク安定性がや
や悪く、ビード形状がやや不良となった。Ｎα１２のＭ
ｐ、Ｏが下限以下では、固形フラックスの溶融量が少な
いため、ビードのなじみが悪くオーバーラツプ状のビー
ドとなった。Ｎｎ　１３のＭｇｐが上限以上では、固形
フラックスの溶融量が殆んどないため。Na 10 Af 120. When the temperature exceeds the upper limit, the amount of melted solid flux is small and the beads become uneven and overlapping. N[l 11 A9.2
When 03 was below the lower limit, the arc stability near the open end was somewhat poor, and the bead shape was somewhat poor. M of Nα12
When p and O are below the lower limit, the amount of melted solid flux is small, resulting in poor bead compatibility and overlapping beads. When the Mgp of Nn 13 is above the upper limit, there is almost no melting amount of the solid flux.

ビード不均一でオーバーラツプ状のビードとなった。The beads were uneven and overlapped.

Ｎα工４の固形フラックスの見掛気孔率か上限以上では
、タブ材の溶融量が著しく増７Ｊｌコするため。If the apparent porosity of the solid flux in Nα Process 4 exceeds the upper limit, the amount of melting of the tab material increases significantly by 7Jl.

ビード過大となり、アンダーカットが発生し、スパッタ
ーも発生した。Ｎｕ　１５の固形フラックスの見掛気孔
率が下限以下では、タブ材の溶融量が殆んどないためビ
ードの均＝性が悪く、オーツく−ランプ状のビードとな
った。さらにｌ々ｎ１６〜Ｎα２０は固形フラックス組
成又は固形フラックスの見掛気孔率が本発明限界範囲を
極端にはずれている場合で、いずれも開先端部近傍のア
ークが不安定でビード形状が不良となった。The bead became too large, undercutting occurred, and spatter also occurred. When the apparent porosity of the Nu 15 solid flux was below the lower limit, there was almost no melting amount of the tab material, resulting in poor bead uniformity and an oat-rump-like bead. Furthermore, l1n16 to Nα20 are cases where the solid flux composition or the apparent porosity of the solid flux is extremely outside the limit range of the present invention, and in both cases, the arc near the open end is unstable and the bead shape is poor. Ta.

以上のように本発明のエンドタブ材ケ使用すれば溶接性
能を向上させることはもとより、エンドタブの準備、取
付け、除去及び仕上げ等の手間を省略することができ一
晟接作業時間も大幅に短縮できる。As described above, using the end tab material of the present invention not only improves welding performance, but also eliminates the labor involved in preparing, installing, removing, and finishing end tabs, and significantly reduces the time required for welding each day. .

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明のエンドタブを使用した実施例の平面図
、第２図は側面図である。 １．１’；被溶接部材　２；開先 ３；エンドタブ　４，４’；マグネット５；板バネ　６
；止具 ７；ナツト　８；ボルト ９；裏当金 第７図 第２回 手続補正書（自発） 昭和５９年３月、８日 特許庁長官　若　杉和夫　殿 ｌ事件の表示　昭和５８年特許願第］、　２９　’ｉ’
　９０号２発明の名称　溶接用エンドタブ ３補正をする者　事件との関係　特許出願人住　所　東
京都千代田区大手町２丁目６番３号名　称　（６６５）
　新日本製鐵株式会社代表者　武　１）　豊 ４代　理　人 住　所　東京都中央区日本橋３丁目３番３号加藤ビル４
Ｆ 氏　名　（６１９３）弁理士　茶野木　立　夫５補正命
令の日付　昭和　年　月　日（発送日）６補正により増
加する発明の数 １％許請求の範囲を別紙のとおり湘正する。 ２　明細書第４頁下から３行目７　ｙ？ｏ　：　５〜３
０ｗｔ％であり、」を［Ｍｙｏ　：　５〜３０ｗｔ％の
範囲でかつＳｉＯ□、　Ａｌ２Ｏ２及びＭｇ、Ｏの合計
が少なくとも９０ｗｔ％であり、］と補正する。 ３　同第６頁６行目〜８行目の 「従って固形フラックス組成は・・・・・・・・・Ｍｈ
ｏ：５〜３０　ｗｔ％とじだ。」を次の通り補正する。 ［ところで、上記組成の固形フラックスを工業的に安価
に製造する場合、低品質のシリカ、アルミナ、マグネサ
イト等を成分目標に混合して焼成反応させると、上記組
成以外の若干のその他成分が含有されることがある。し
かしながら５ｉ０２　、　Ａｌ２Ｏ２＋　ＭｆＯが上Ｍ
Ｌ範囲内であれば、］０チ程度の不純物が含まれていて
も上記効果は失われない。」 ４　同８負第１表中１固形フラックス組成」及び「見掛
気孔率」の欄を別紙のとおり補正する。 別紙 特許請求の範囲 ｎ：Ｉ天性固形フラックス組成が５ｉ０２４５〜７０ｗ
ｔ％、　Ｍ２Ｏ３１５〜４０　Ｗｔ　％　、　ＭｆＯ５
’−３０％４０係であることを％徴とする浴接用エンド
タブ。FIG. 1 is a plan view of an embodiment using the end tab of the present invention, and FIG. 2 is a side view. 1.1'; Part to be welded 2; Groove 3; End tab 4, 4'; Magnet 5; Leaf spring 6
; Fastener 7; Nut 8; Bolt 9; Backing money Figure 7 2nd procedural amendment (voluntary) March 8, 1980 Commissioner of the Patent Office Kazuo Wakasugi Indication of the case Patent application filed in 1988 ], 29 'i'
No. 90 2 Name of the invention End tab for welding 3 Person making the amendment Relationship to the case Patent applicant address 2-6-3 Otemachi, Chiyoda-ku, Tokyo Name (665)
Nippon Steel Corporation Representative Takeshi 1) Yutaka 4th generation Osamu Address Kato Building 4, 3-3-3 Nihonbashi, Chuo-ku, Tokyo
F Name (6193) Patent attorney Tatsuo Chanoki 5. Date of amendment order Showa 1920 Month/day (shipment date) 6. The number of inventions increased by 1% due to the amendment The scope of claims will be corrected as shown in the attached sheet. 2 3rd line from the bottom of page 4 of the specification 7 y? o: 5-3
0 wt%," is corrected to [Myo: in the range of 5 to 30 wt%, and the total of SiO□, Al2O2, and Mg, O is at least 90 wt%]. 3. On page 6, lines 6 to 8, “Therefore, the solid flux composition is...Mh
o: 5 to 30 wt% binding. ' shall be corrected as follows. [By the way, when producing solid flux with the above composition at low cost industrially, if low-quality silica, alumina, magnesite, etc. are mixed with the target composition and subjected to firing reaction, some other components other than the above composition may be contained. It may be done. However, in 5i02, Al2O2+ MfO is
As long as it is within the L range, the above effect will not be lost even if about 0% of impurities are included. 4. Correct the columns 1 "Solid flux composition" and "Apparent porosity" in Table 1 of Table 1 of 8-8, as shown in the attached sheet. Attachment Claim n: I natural solid flux composition is 5i0245~70w
t%, M2O315-40 Wt%, MfO5
An end tab for bathing that has a percentage of -30%40.

Claims (1)

【特許請求の範囲】[Claims] 耐火性固形フラックス組成が５ｉ０２４５〜７０ｗｔ％
、　Ｍ２Ｏ３１５〜４０　ｗｔ％、　ＭＩｌｏ　５〜３
０ｗｔ％で、見掛気孔率が５〜４０％であることを特徴
とする溶接用エンドタブ。Refractory solid flux composition is 5i0245-70wt%
, M2O3 15-40 wt%, MIlo 5-3
An end tab for welding, characterized in that it is 0 wt% and has an apparent porosity of 5 to 40%.
JP12979083A 1983-07-16 1983-07-16 End tab for welding Granted JPS6021196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12979083A JPS6021196A (en) 1983-07-16 1983-07-16 End tab for welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12979083A JPS6021196A (en) 1983-07-16 1983-07-16 End tab for welding

Publications (2)

Publication Number Publication Date
JPS6021196A true JPS6021196A (en) 1985-02-02
JPH0364237B2 JPH0364237B2 (en) 1991-10-04

Family

ID=15018289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12979083A Granted JPS6021196A (en) 1983-07-16 1983-07-16 End tab for welding

Country Status (1)

Country Link
JP (1) JPS6021196A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6326298A (en) * 1986-07-18 1988-02-03 Eihou Bussan Kk End tab connection body for welding
JPS6344480U (en) * 1986-09-09 1988-03-25
JPH03240257A (en) * 1990-02-19 1991-10-25 Matsushita Electron Corp Package for semiconductor device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636318A (en) * 1986-06-26 1988-01-12 Takuma Co Ltd Burner

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636318A (en) * 1986-06-26 1988-01-12 Takuma Co Ltd Burner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6326298A (en) * 1986-07-18 1988-02-03 Eihou Bussan Kk End tab connection body for welding
JPS6344480U (en) * 1986-09-09 1988-03-25
JPH03240257A (en) * 1990-02-19 1991-10-25 Matsushita Electron Corp Package for semiconductor device

Also Published As

Publication number Publication date
JPH0364237B2 (en) 1991-10-04

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