經濟部中央櫺準局员工消f合作社印¾ ^ΟΒο^ο “ Λ fi _ Β 6 五、發明説明α ) 發明之背景 本發明傜關於一種可防止黑色或深灰色或棕色微粒狀物 質（以下稱為黑粉）在鋁合金之電極型惰性氣醱電弧熔接 (以下稱為MIG熔接）時，在熔接件銲珠上面或周圍之形 成及污染之鋁合金之熔接方法。 鋁合金之需求對各種工業部門持鑛，包括太空器具 、化學器具及容器、建築物、電機械及其他工業，此乃由 於其重量輕、防蝕性優異、高度電及熱導性及高強度比度 (卽，強度對重量之高比率）而然。 許多上述工業所利用並構成之鋁合金組份偽藉熔接、焊 接或機械組合予以組合。藉此等組件之熔接，主要使用 MIG熔接或非電極型惰性氣體電弧熔接（以下簡稱為TIG熔 接）。因為MIG熔接顯示較TIG熔接更高的電弧效率，而一 般特徽為高度熔接速度，其被用於熔接廣泛範圍板厚之板 /片材。 當使用MIG技術熔接鋁合金時，意外注意到黑粉被形成 在熔接銲珠周圍或在其銲珠表面上，端視欲熔接之基材類 型、欲使用之熔接線及其他熔接條件而定。雖然黑粉通常 並不被視為一熔接缺點如熔接裂痕或痕坑，但黑粉會破壞 熔接件之外觀。 因此，通常需要小心，藉適當選擇各種熔接條件包括噴 燈（forch)角度、電弧電壓、遮屏喷嘴之形狀及内徑、噴 嘴之形狀及内徑、噴嘴底部及基材間之距離及遮屛氣醱之 流速而使黑粉形成之污染降至最低。 本紙張尺度边用中國B家標準(CNS)甲4規格(210X297公着）„ (請先閲讀背面之注意事項再填tcT木奸) 線. r qs〇6^> Λ 6 W 6 經濟部中央櫺準局負工消費合作社印製 五、發明説明（2 ) 當需要後熔接處理如表面處理或塗料時，在鋁合金之 MIG熔接時所形成之黑粉亦會産生問題。因此，在此等後 熔接處理前，藉機械手段如藉刷覆（brushing),或有時藉 化學或其他物理方法除去黑粉。 當使用依照JIS Z3232 ”鋁及鋁合金熔接桿及線” 5000条 列鋁合金製成之合金線熔接根據JIS H4000 ”鋁及鋁合金板 及桿” 齊菊, 5 0 0 0糸列鋁合金之M g軸承（作為主 要合金元素）或7000条列鋁合金之Zn、Mg軸承（作為主要合 金元素）時，黑粉似乎容易大量形成。 雖然黑粉藉顯微鏡觀察後呈現極細之粒子，顯徹鏡觀察 顯示，其係由幾乎純鋁及合金元素如Mg、Zn、Si(端視熔 接線之類型而定）所組成之極細球狀粒子及氣沈積在純鋁 上之球狀粒子所組成。 可認知的是，沈積之黑粉運偽藉下列熔接條件而被除去 :即，藉增加的角度熔接、低電弧電壓、大遮屏噴嘴之内 徑及在噴嘴底部與欲熔接之基材間之短距離等條件。 本發明之目的及概述 因此，本發明之目的為提供一種在鋁合金之MIG熔接時 ,用來防止黑粉之形成或沈積在熔接件捍珠四周或上面之 鋁合金之熔接方法。 可觀察出，（1)黑粉之形成與熔接基材之類型及所用之 熔接線有關，及（2)MIG熔接可産生較TIG熔接更多的黑粉 。本申請人等以所申請之日本專利待平2-98513號所述之 熔接條件下進行實驗，以防使用各種可消耗電極線與熔填 本紙張尺度逍用中8國家標準（CNS)甲<1規格（210X297公 (請先閲讀背而之注意卞項再埸寫木疗) Λ fi Η 6 經濟部中央檁準局貝工消費合作社印$1 五、發明説明（:i ) 線之結合之黑粉的形成。藉將二線插入遮屏噴嘴中以藉可 消耗電極線産生電弧.及藉將熔填線插入熔融金属浴中以 分離自可消耗電極線通至電弧之熔接電流之部份而進行實 驗。將其導至熔填線並在熔接供電之接地線頭將其結合。 所有程序為實施一可消耗電極型電弧熔接。 由所得結果可發現，當含有Mg、Zn、Si、或Cu(其為可 消耗電極線之合金元素）之可消耗電極線以單獨或連結方 式使用時，自可消耗電極線傳送至基材之合金元素蒸氣/品 自惰性氣體遮屏區逸出以與空氣反應，造成黑粉之形成。 在MIG熔接時所形成之黑粉之量端視可消耗電極線之合金 元素而定，甚於基材。 本發明提供一鋁線作為可消耗電極)及(化學性超過基材 之鋁合金線作為填料在使用氣體遮屛電弧熔接技術之鋁 合金之熔接時，使用可消耗電極以産生電弧並在基材内産 生熔融浴。熔填線被饋入浴中，以産生如基材般具有適當組 成物之浴。 另外，本發明亦提供可消耗電極線與熔填線結合，其方 式為，藉使用具有低於2.5重量5S合金元素作為可消耗電極 線及鋁合金線（其化學合金組成物多於基材者）作為熔填線 ,合金元素於熔熔金屬浴中之化學組成物相等於基材之化 學組成物。 依照本發明，由於使用由純鋁或低於2.5重量S；之合金元 素之鋁合金所組成之純鋁或可消耗電極線.自可消耗電極 線傳送至基材之蒸氣應為純鋁或具有低於2.5重量3!合金元 (請先閲讀背而之注意事項再填寫木疗) 裝· 線. 本紙張尺度通用中國國家標準(CNS)甲4規格(210x297公龙) 5 3 6 Ό 8 ο 2 4 /!\ 明 説 明 發 Λ 五 濃線 低« 為熔 或金 ， 合 内鋁 氣 ， 蒸外 於9 含 0 包成 不形 素之 元粉 金黑 合止 , 防 此地 因功 0 成 金.可 合致 鋁導 之 ， 素度 者 材 基 於 高h 物浴 成g 屬 組金 合融 1® b之 U生 5産 耗 消 可 所生 線産 極以 電合 耗結 消線 可填 由熔 入及 插線 被極 —電 實 其釋 ,稀 物之 成内 組件 學接 化熔 之於 中素 浴元 羼金 金合 融於 熔由 二使 於 ， 素者 元材 金基 合於 等 相 上 質 發 能 可 其 件 接 熔 何 任 止 防 可 件 接 熔 之 〇 金象 合現 鋁低 之降 線質 鋁品 純之 用少 使減 於度 生強 前熔 之拌 線攢 極線 電填 耗熔 消盪 可振 為藉 可並 置 ， 位近 入附 插弧 之電 浴在 融插 熔是 對好 線較 填 ， 熔側 然後 雖或 側 之 線 填 熔 金 合 鋁 及 材 基 金 合 鋁 融 0 熔 程之 過中 散浴 擴融 強熔 增於 以耗 , 消 浴對 融 元或 金鋁 合純 箸由 顯對 無線 並填 ，熔 示金 顯合 果鋁 結的 究入 研插 之制 量控 之應 素 ， 元此 金因 合 〇 素 具 供 大 之 更 線 材 極。基 電物較 耗成括 消組包 可學其 之化 ， 成的金 製同合 所相鋁 金材為 合基應 鋁如線 之有填 物具熔 成接 ， 組熔果 金使結 合 ，此 i%bb生 量1«産 51重為 2.應 (請先閲讀背面之注意事項再堝寫木瓦) 經濟部中央櫺準局貝工消f合作社印製 於 低 有 具 或 鋁 純 於 制 限 被 物 成 組 之 線 極 C 電 素耗 元消 金可 合何 之為 量 過 超 其 當 於 。 基實 乃事 由之 理重 要駸 主更 之成 金變 合 會 鋁成 之形 物之 成粉 組黑 金 ， 合 時 % 龙 量量 -3 5 5 2 2 明 說 單 簡 之 圖 附 之 明 發 本 照 依 示 顯 圖 份 部 要第 主 ， 之件 置接 裝熔 接頭 熔對 G -I 之 4- 例 體 具 明 發 本 照 依 ! 示 第顯 圖 圖 3 2 β 依 示 例 本紙張尺度逍用中國Η家樣準(CNS)甲4規格(210x297公龙） β 〇866i：> Λ 6 Η 6 經濟部中央櫺準局貝工消費合作社印製 五、發明説明（5 ) 照具體例1如何黑粉被形成在熔接件銲珠上面及周圍，·其 中（a)例示本發明之情況而（b)例示更傳統方法之情況，及 第4圖顯示依照本發明之另一具體例，黑粉之形成在熔接 件銲珠之上面或周圍；其中（a)為第二具體例之情況，（b) 為另一具醱例之倩況而（c)為比較性試驗（2)之情況；因此， 1……噴嘴， 2……可消耗電極線， 3......熔填線， 4......欲熔接之基材， 5......電弧， 6......熔融金羼浴， 7……熔接金靥， 8……熔接銲珠，及 9......黑粉。 由本發明較佳具體例之細節說明連同附圖及圖表可完全 明瞭本發明之上述及其他目的、特性及優點。 第1圖例示依照本發明具體例之熔接装置。可消耗電極 線2偽由純鋁或含有低於2.5重量Si自MIG熔接装置之噴嘴1 突出之合金組成物之鋁合金所製成。電弧5係在基材4與可 消耗電極線2間産生。熔填線3被供應至産生在基材4上之 熔融金屬浴5。應控制可消耗電極線2及熔《線3之供應重 量比，使熔融金屬浴及基材4之合金組成物實質上相同， 熔接金屬由7示出。 為了達到由可消耗霄極線2及熔填線3所形成之浴中之合 金組成物與基材4之量相等，應依照熔填線之合金組成物 控制鋁合金熔《線3之進給速度及由純鋁或具有低於2.5重 量％合金組成物之鋁合金所製成之可消耗電極線2之進給速 度。另外，在相同進給速度下，可藉控制熔埔線3内之合 7 本紙張尺度逍用中國國家櫺準（CNS)甲4規格（210X297公龙) (請先閲讀背而之注意卞項再填寫木抒) 10 6 6 8 ο 6 6 ΛΠ 五、發明説明（6) 金組成物之量完成之。在此情況，各線之供應速度僳电板 厚、基材4之组成物及線直徑所限制。 具體例1 藉使用表1所示之材料，及第1圖所示之熔接裝置，具有 I形斜面之3miB厚板（參照第2圖）之對頭熔接件僳在表2所示 之熔接條件下藉MU熔接技術所熔接。習知Μ 1^熔接技術之 熔接條件亦被列表以供比較。熔接金屬之化學組成物則由 光譜學所測定。 黑粉之外觀狀況由肉眼檢驗。其結果被 列於表3並示於第3(a)及（b)圖。氬氣被用作遮屏氣體。可 消耗電極線及熔填線之直徑為1. 2mm。 表 1 化學組成物（重量；η 其餘 試驗材料 Si ! ： Fe | Cu i Μη Mg Cr 1 Zn ； Ti A1 基材 0.14 0·18 0‘03丨0.69 4.44 0.22丨0.05 0.01 其餘 可消耗霄極線1 0.11 ι ι 0.19 0.05丨- - 1 . _ ! _ ;-丨其餘 可消耗電極線2 0.18 0.29 0.06 0.74 4.79 0.09 0.05 0.01 熔填線 0.17 0.19 0.07 1.从 9.40 0.83 0.06 0.01 其餘 備註：可消耗電極線1 :用於本發明（1 ) (請先閲讀背面之注意事項再填寫木UK) 裝. 線. 經濟部中央標準局员工消费合作社印製 可消耗電極線2:用於比較試驗（1) 熔填線1 :用於本發明（1) 表 2 熔接電流 電弧電壓 熔接速度 熔填線之量 本發明（1) 240 A 26 V 200 cm/min 8.5 g/min 比較例（1 ) 240 A 26 V 100 cm/min - 本紙張尺度逍用中國Η家標準(CNS)甲4規格(210x297公I)Printed by the Employee Consumers ’Cooperative of the Central Bureau of Economic Development of the Ministry of Economic Affairs ^ ^ ΟΒο ^ ο“ Λ fi _ Β 6 V. Description of the Invention α) Background of the Invention The present invention relates to a substance that can prevent black or dark gray or brown particulate matter It is black powder) in the electrode type inert gas arc welding of aluminum alloy (hereinafter referred to as MIG welding), the welding method of the aluminum alloy formed and contaminated on or around the welding bead of the weldment. The demand for aluminum alloy is for various industries The department holds mines, including space appliances, chemical appliances and containers, buildings, electrical machinery and other industries. This is due to its light weight, excellent corrosion resistance, high electrical and thermal conductivity, and high strength ratio (卽, strength to weight High ratio). Many aluminum alloy components used and constituted by the above industries are combined by welding, welding or mechanical combination. The welding of these components is mainly made of MIG welding or non-electrode inert gas arc welding ( (Hereinafter referred to as TIG welding). Because MIG welding shows higher arc efficiency than TIG welding, and the general emblem is a high welding speed, which is used in a wide range of welding Thick plate / sheet When using MIG technology to weld aluminum alloys, it is unexpectedly noticed that black powder is formed around or on the welding bead surface, depending on the type of substrate to be welded and the welding to be used Depending on the wire and other welding conditions. Although black powder is not generally regarded as a welding defect such as welding cracks or pits, black powder will damage the appearance of the welded part. Therefore, it is usually necessary to be careful to properly select various welding conditions including The angle of the torch (forch), the arc voltage, the shape and inner diameter of the mask nozzle, the shape and inner diameter of the nozzle, the distance between the bottom of the nozzle and the substrate, and the flow velocity of the mask gas minimize the pollution caused by the black powder This paper uses the Chinese B standard (CNS) Grade 4 specification (210X297 public). (Please read the precautions on the back before filling in tcT). R qs〇6 ^> Λ 6 W 6 Economy Printed by the Ministry of Central Bureau of Precision Engineering, Consumer Cooperatives 5. Description of the invention (2) When post-welding treatment such as surface treatment or coating is required, the black powder formed during the MIG welding of aluminum alloys will also cause problems. Therefore, before these subsequent welding processes, the black powder is removed by mechanical means such as brushing, or sometimes by chemical or other physical methods. When using alloy wire made of 5,000 series aluminum alloys in accordance with JIS Z3232 "Aluminum and aluminum alloy welding rods and wires" according to JIS H4000 "Aluminum and aluminum alloy plates and rods" Qi Ju, 5 0 0 0 When Mg bearings (as the main alloying element) or 7000 series aluminum alloy Zn, Mg bearings (as the main alloying element), black powder seems to be easily formed in large quantities. Although the black powder showed very fine particles after observing with a microscope, the observation through the microscope showed that it was very fine spherical particles composed of almost pure aluminum and alloy elements such as Mg, Zn, and Si (depending on the type of weld line). It consists of spherical particles deposited on pure aluminum. It is recognizable that the deposited black powder was removed by the following welding conditions: that is, by increased angle welding, low arc voltage, the inner diameter of the large shield nozzle, and between the bottom of the nozzle and the substrate to be welded Conditions such as short distance. Object and Summary of the Invention Therefore, the object of the present invention is to provide an aluminum alloy welding method for preventing the formation of black powder or depositing on or around the bead of the welded part during the MIG welding of the aluminum alloy. It can be observed that (1) the formation of black powder is related to the type of welding substrate and the welding line used, and (2) MIG welding can produce more black powder than TIG welding. The applicants conducted experiments under the welding conditions described in the Japanese Patent Application No. 2-98513 to prevent the use of various consumable electrode wires and fusion-filled paper. The Chinese Standard 8 (CNS) A <; 1 specification (210X297 male (please read the back to the Bian item first and then write the wood therapy)) Λ fi Η 6 Printed by the Central Purchasing Bureau of the Ministry of Economic Affairs Shellfish Consumer Cooperative $ 1 V. The description of the invention (: i) The formation of black powder. By inserting the second wire into the mask nozzle to generate an arc from the consumable electrode wire, and by inserting the fusion filler wire into the molten metal bath to separate the part of the welding current from the consumable electrode wire to the arc And conduct the experiment. Lead it to the welding line and connect it at the grounding terminal of the welding power supply. All procedures are to implement a consumable electrode arc welding. From the results obtained, it can be found that when it contains Mg, Zn, Si, or When the consumable electrode wire of Cu (which is an alloy element of the consumable electrode wire) is used alone or in a connected manner, the alloy element vapor / product transferred from the consumable electrode wire to the substrate escapes from the inert gas shielding area to Air reaction, causing black powder The amount of black powder formed during MIG welding depends on the alloy element of the consumable electrode wire, which is higher than that of the substrate. The present invention provides an aluminum wire as a consumable electrode) and (aluminum that chemically exceeds the substrate) The alloy wire is used as a filler. When welding aluminum alloys using gas shield arc welding technology, consumable electrodes are used to generate an arc and a molten bath is generated in the substrate. The molten filler wire is fed into the bath to produce Bath of appropriate composition. In addition, the present invention also provides the combination of consumable electrode wire and fusion filler wire by using 5S alloy elements with a weight of less than 2.5 as consumable electrode wire and aluminum alloy wire (the chemical alloy composition More than the substrate) as a weld line, the chemical composition of the alloy elements in the molten metal bath is equal to the chemical composition of the substrate. According to the present invention, due to the use of pure aluminum or less than 2.5 weight S; Pure aluminum or consumable electrode wire composed of alloyed aluminum alloys. The vapor transmitted from the consumable electrode wire to the substrate should be pure aluminum or have a weight of less than 2.5 3! Alloy yuan (please read the notes first Please fill in the wooden therapy item again). Packing and thread. The paper size is in accordance with the Chinese National Standard (CNS) A 4 specifications (210x297 male dragon) 5 3 6 Ό 8 ο 2 4 /! Or gold, aluminum gas inside, steamed outside in 9 containing 0 yuan of gold powder into the invisible element, to prevent this place because of work 0 gold. It can be induced by aluminum, and the basic material is based on high h material. g belongs to the group Jinherong 1® b, the U-generation and production-generating poles of the U-generation and production line can be filled by the electro-consumption-consumption line and can be filled by melting and inserting the line pole-the electricity is released, and the composition of the thinner is formed. The melting and melting of the gold element in the element bath and the melting of the gold are combined by the two, the element of the gold element is bonded to the isophase, and the energy can be welded to any piece. The low-grade linear aluminum products are purely used, so that the mixing line reduced to the pre-strength melting line, the storage line, the electric line, the electric consumption, the melting and the oscillation can be borrowed and can be juxtaposed, and the position is near the electric bath with arc insertion. Melting is to fill the line, and then melt the side and then the line to fill the aluminum alloy and material Fund aluminum alloy melting 0 The melting process of the melting bath increases the melting of the melting bath to increase the consumption, the bath to the melt yuan or the gold and aluminum alloy pure wire from the display to the wireless and fill, the melting shows the research of the gold and fruit aluminum junction into the research and insertion The quality control system should be suitable for large wire rods. The basic electrical material is more expensive and can be learned from the elimination of the package. The gold alloy made of the same phase as the aluminum alloy material is a combination of aluminum and wire. There is a filler with a fusion joint, and the combination of the fruit gold makes the combination. This i% bb biomass 1 «production 51 weight is 2. Should (please read the precautions on the back and then write the shingles) The Ministry of Economic Affairs Central Bureau of Industry and Economics Cooperative Society printed in low-quality or pure aluminum Limiting the amount of linear electrode C electron element consumption gold that can be grouped by the object is too much. The basic fact is the reason of the matter, the important master is the gold-forming powder, and the gold-forming powder of the aluminum alloy is black gold, and the time is%. The amount of the dragon-3 5 5 2 2 The display part should be the main part, the piece is set and the fusion splice is welded to the G-I. The 4-case body has the original version! The display is shown in Figure 3 2 β According to the example, the paper size is easy to use China Η Home Sample Standard (CNS) A 4 specifications (210x297 male dragons) β 〇866i: > Λ 6 Η 6 Printed by the Ministry of Economic Affairs, Central Standardization Bureau, Beigong Consumer Cooperatives V. Invention Instructions (5) According to specific example 1 how to black powder Formed on and around the weld beads of the weldment, where (a) illustrates the situation of the invention and (b) illustrates the more traditional method, and FIG. 4 shows another specific example of the formation of black powder according to the invention On or around the welding beads of the welded parts; where (a) is the case of the second specific example, (b) is the condition of another special case and (c) is the case of the comparative test (2); therefore, 1 ... nozzle, 2 ... consumable electrode wire, 3 ... melted filler wire, 4 ... substrate to be welded, 5 ... Electric arc, 6 ... Molten gold bath, 7 ... Welded gold, 8 ... Welded welding beads, and 9 ... Black powder. The above and other objects, characteristics and advantages of the present invention can be fully understood from the detailed description of the preferred specific examples of the present invention, together with the accompanying drawings and diagrams. Fig. 1 illustrates a welding device according to a specific example of the present invention. The consumable electrode wire 2 is made of pure aluminum or an aluminum alloy containing an alloy composition having a Si content of less than 2.5 weight protruding from the nozzle 1 of the MIG welding device. The arc 5 is generated between the substrate 4 and the consumable electrode wire 2. The molten filler line 3 is supplied to the molten metal bath 5 generated on the substrate 4. The supply weight ratio of the consumable electrode wire 2 and the fusion wire 3 should be controlled so that the alloy composition of the molten metal bath and the base material 4 is substantially the same, and the fusion metal is indicated by 7. In order to achieve the same amount of alloy composition and base material 4 in the bath formed by the consumable ball line 2 and fusion fill line 3, the aluminum alloy fusion "feed of the line 3" should be controlled according to the alloy composition of the fusion fill line The speed and the feed speed of the consumable electrode wire 2 made of pure aluminum or an aluminum alloy having an alloy composition of less than 2.5% by weight. In addition, under the same feed speed, you can use the paper size of 7 in the Rongpu line 3 to use the Chinese National Standard (CNS) A 4 specifications (210X297 male dragon) (please read the backing notes first. (Fill in Mushu) 10 6 6 8 ο 6 6 ΛΠ V. Description of invention (6) The amount of gold composition is completed. In this case, the supply speed of each wire is limited by the thickness of the electric board, the composition of the base material 4, and the wire diameter. Specific Example 1 By using the materials shown in Table 1 and the welding device shown in Figure 1, the butt welding parts of the 3miB thick plate with I-shaped slope (refer to Figure 2) are under the welding conditions shown in Table 2 Welded by MU welding technology. The welding conditions of the conventional M 1 ^ welding technology are also listed for comparison. The chemical composition of the welded metal is determined by spectroscopy. The appearance of black powder is checked by naked eyes. The results are shown in Table 3 and shown in Figures 3 (a) and (b). Argon gas is used as a shielding gas. The diameter of the consumable electrode wire and fusion-filled wire is 1.2 mm. Table 1 Chemical composition (weight; η remaining test material Si !: Fe | Cu i Mn Mg Cr 1 Zn; Ti A1 base material 0.14 0 · 18 0'03 丨 0.69 4.44 0.22 丨 0.05 0.01 The rest can be consumed Xiao pole line 1 0.11 ι ι 0.19 0.05 丨--1. _! _;-丨 Remaining consumable electrode wire 2 0.18 0.29 0.06 0.74 4.79 0.09 0.05 0.01 Fusion fill line 0.17 0.19 0.07 1.From 9.40 0.83 0.06 0.01 Other remarks: consumable electrode wire 1: Used in the present invention (1) (please read the precautions on the back before filling in the wooden UK). Wire. Consumable electrode wire printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 2: Used for comparison test (1) melting Line filling 1: used in the present invention (1) Table 2 Welding current arc voltage welding speed amount of welding line filling the invention (1) 240 A 26 V 200 cm / min 8.5 g / min Comparative example (1) 240 A 26 V 100 cm / min-Chinese paper standard (CNS) Grade 4 (210x297)
S Λ 6 Η 6 五、發明説明（7) 表 3 熔接金颶之化學組成物（重量3；) Si Fe Cu Μη Mg Cr Zn Ti A1 黑粉 本發明（1) 0.12 0.19 0.05 0.68 4.00 0.20 0.01 0.011其餘 不存在 比較例（1 ) !0.14 0.20 0.05 0.70 4.42 0.20 0.05 0.05 其餘 存在 由依照本發明之具體例（1)之表3及表圖I可發現，黑 粉9在熔接件銲珠8之表面上或周圍之污染不存在，而熔接 金屬之化學組成物極類似於基材者。相對照地，在第3圖 中在比較性試驗（1)時藉MIG熔接，熔接件繞銲珠8之整個 表面覆蓋有黑粉9。此完全不同於本發明之情況。 在依照JIS Ζ3132切削之熔接件上進行機械試驗。其結 果被列於表4。 表 4 抗拉強度 降伏強度 伸長度 (kg f / id in2 ) (kg f / mm2 ) ⑴ 本發明（1) 32.3 15.4 16 比較例（1 ) 32.0 15.2 16 (請先間讀背面之注-事項再填寫木3) 經濟4中央標準局貝工消费合作社印製 由表4可知，自依照本發明具體例（1)之熔接件切削之試 驗件之所有抗拉強度、降伏強度及伸長度相等於比較性試 驗（1)熔接件者。 、 具體例2 藉使用先前具體例1所用之相同基材及表5所列之材料， 具有I形斜面之3m厚板（參照第2圖）之對頭熔接件僳藉使 用第1圖所示之熔接装置實施之。熔接條件為MIG熔接，如 本紙張尺度遑用中Η國家楳準(CNS)甲4規格(210X297公;ϊ) ' Λ 6 η 6 五、發明説明（8 ) 表2所例示，其與具體例（1)相同。在黑粉之形成上之眼睛 觀察及合金組成物之顯微鏡分析係在熔接金靨上進行。 表_5 化學組 成物 (重 量％) 試 驗 材 料 Si i Fe : Cu Μη Mg Cr Zn 1 Ti 1 A1 可 消 耗 電 極 線 (3) 0.08 0.17 0.04 ί - - ! ! 1·66ΐ _ j _ 一 其 餘 可 消 耗 電 極 線 (4) 0.12 0.22： 0,04 - 2.05 - - - 其 餘 可 消 耗 電 極 線 (5) 0.10 0.20 0.04 — 2.55 - - - 餘 熔 填 線 (2) 0.17 0.19 0.07 - 8.20 0.83 0.06 0.01 其 餘 備註：可消耗電極線3 :用於本發明（2 ) 可消耗電極線4:用於本發明（3) 可消耗電極線5:用於比較性試驗（2) 熔填線2:用於本發明（2), (3)及比較性試驗（2) 其結果被列於表6並示於第4(a)及（b)圖。遮屏氣體為氣 氣。可消耗電極線3、4及熔填線2之直徑為1.2咖。 表 6 (請先閲讀背面之注意事項再填寫木頁) 經濟部中央櫺準局貝工消費合作社印製 熔 接 金 屬 之 化 學組 成物（重 量 %) Si Fe Cu Μη Mg Cr Zn Ti A1 黑粉 本 發 明 ⑴ 0.11 0.18 0 05 〇 .66 4. 00 0.19 0.01 0.00 其 餘 不存在 本 發 明 Φ 0.11 0.18 0 .05 0 • 67 4 .25 0.19 0.01 0.00 其 餘 不存在 比 較 例 (2) 0.11 0,19 0 .05 0 .69 4. 35 0.2] 0.01 0.00 其 餘 梦存在 由表6及第4(a)及（b)圖可知，使用具有低於2.5重置χ合 金组成物之可消耗電極線，並未看到黑粉9在由本發明第 二（2)及第三（3)具體例所形成之熔接銲珠8上面或周園造 本紙張尺度边用中國a家楳準（CNS) fM規格（210x297公龙） 10 0866ο 五、發明説明（9 ) 成污染。熔接金靥之化學合金組成物亦被發現相等於基材 者。另方面，藉比較性試驗（2),其中可消耗電掻線之合 金組成物超過.2.5重量χ者，黑粉9被沈積在熔接銲珠8之二 側上，如第4(c)圖所示。此結果完全不同於本發明（2)及 (3 )所得之結果。 進行依照JIS Ζ3121切削之熔接件所製成之試驗件上之 抗拉試驗。其結果被列於表7。由表7可知，由具體例（2) 及（3)所形成之熔接件之抗拉強度、降伏強度及伸長度之 機械待性相等於比較性試驗（2)熔接件者。 表 7 抗拉強度 降伏強度 伸長度 (kg f / idm2 ) (kg f / m m2 ) (¾) 本發明（2 ) 32.1 15.3 16 本發明（3) 32.3 15.3 16 比較例（2 ) 32.5 15.4 15 (請先閲讀背面之注意事項再填寫木ic) 裝. 線. 經濟部中央樑準局貝工消f合作社印製 如前所述，本發明可防止黑粉在鋁合金之MIG熔接時所 形成之熔接捍珠上面或周圍之形成及沈積。另外，熔接之 強度相等於基材強度，並藉控制熔接金羼之化學組成物而 保持。因此，本發明對熔接組合過程後需要塗料之零件可 提供後熔接程序之顯著減少。 本紙張尺度边用中國國家標準(CNS)甲4規格(210x297公龙）11S Λ 6 Η 6 V. Description of the invention (7) Table 3 The chemical composition of the welded gold hurricane (weight 3;) Si Fe Cu Mn Mg Cr Zn Ti A1 black powder The invention (1) 0.12 0.19 0.05 0.68 4.00 0.20 0.01 0.011 There are no other comparative examples (1)! 0.14 0.20 0.05 0.70 4.42 0.20 0.05 0.05 The remaining existence can be found from Table 3 and Table I of the specific example (1) according to the present invention, the black powder 9 is on the surface of the welding bead 8 There is no pollution on or around, and the chemical composition of the welded metal is very similar to the substrate. In contrast, in Figure 3, in the comparative test (1), by MIG welding, the entire surface of the welding part around the bead 8 is covered with black powder 9. This is completely different from the case of the present invention. Mechanical tests were carried out on welded parts cut in accordance with JIS Z3132. The results are listed in Table 4. Table 4 Tensile strength, yield strength, elongation (kg f / id in2) (kg f / mm2) ⑴ The present invention (1) 32.3 15.4 16 Comparative example (1) 32.0 15.2 16 (Please read the notes on the back-matters before Fill in the wood 3) Economic 4 Printed by Beigong Consumer Cooperative of Central Bureau of Standards From Table 4, all the tensile strength, yield strength and elongation of the test piece cut from the welded part according to the specific example (1) of the present invention are equal to the comparison Sex test (1) Welded parts. 2. Specific example 2 Using the same base material used in the previous specific example 1 and the materials listed in Table 5, a 3m thick plate with an I-shaped slope (refer to Figure 2) is used for the butt welding parts. The welding device is implemented. The welding conditions are MIG welding, as in this paper, the standard of China National Standard (CNS) Grade 4 (210X297); Λ 6 η 6 is used. 5. Description of invention (8) Illustrated in Table 2 and its specific examples (1) Same. The eye observation on the formation of black powder and the microscopic analysis of the alloy composition were carried out on the welded gold. Table_5 Chemical composition (% by weight) Test material Si i Fe: Cu Mn Mg Cr Zn 1 Ti 1 A1 Consumable electrode wire (3) 0.08 0.17 0.04 ί--!! 1 · 66ΐ _ j _ The rest is consumable Electrode wire (4) 0.12 0.22: 0,04-2.05---The rest of the consumable electrode wire (5) 0.10 0.20 0.04 — 2.55---Remnant fill line (2) 0.17 0.19 0.07-8.20 0.83 0.06 0.01 Other remarks: Consumable electrode wire 3: used in the present invention (2) consumable electrode wire 4: used in the present invention (3) consumable electrode wire 5: used in comparative tests (2) fusion-filled wire 2: used in the present invention ( 2), (3) and comparative test (2) The results are listed in Table 6 and shown in Figures 4 (a) and (b). The masking gas is gas. The diameters of the consumable electrode wires 3 and 4 and the fusion-filled wire 2 are 1.2 mm. Table 6 (Please read the precautions on the back before filling in the wooden page) The chemical composition (weight%) of the welded metal printed by the Ministry of Economic Affairs, Central Bureau of Precision Industry, Beigong Consumer Cooperatives Si Fe Cu Mn Mg Cr Zn Ti A1 black powder This invention ⑴ 0.11 0.18 0 05 〇.66 4. 00 0.19 0.01 0.00 The rest of the invention does not exist Φ 0.11 0.18 0 .05 0 • 67 4 .25 0.19 0.01 0.00 The rest does not exist Comparative Example (2) 0.11 0,19 0 .05 0 .69 4. 35 0.2] 0.01 0.00 The remaining dreams can be seen from Table 6 and Figures 4 (a) and (b), using consumable electrode wires with a reset χ alloy composition lower than 2.5, no black is seen The powder 9 is used on the welding bead 8 formed by the second (2) and third (3) specific examples of the present invention or on the scale of the paper produced by Zhouyuan. It is a Chinese aurethane (CNS) fM specification (210x297 male dragon) 10 0866ο V. Description of the invention (9) Pollution. The chemical alloy composition of the welded gold is also found to be equivalent to the substrate. On the other hand, by comparative test (2), where the alloy composition of the consumable wire fuse exceeds .2.5 weight χ, the black powder 9 is deposited on both sides of the welding bead 8, as shown in Figure 4 (c) As shown. This result is completely different from the results obtained by the present invention (2) and (3). A tensile test was carried out on a test piece made of welded parts cut in accordance with JIS Z3121. The results are listed in Table 7. It can be seen from Table 7 that the mechanical properties of the tensile strength, yield strength and elongation of the welded parts formed by the specific examples (2) and (3) are equal to those of the comparative test (2) welded parts. Table 7 Tensile strength, yield strength, elongation (kg f / idm2) (kg f / m m2) (¾) The present invention (2) 32.1 15.3 16 The present invention (3) 32.3 15.3 16 Comparative example (2) 32.5 15.4 15 ( Please read the precautions on the back before filling in the wooden ic). Line. Printed by the Ministry of Economic Affairs, Central Bureau of Industry, Beigongxiao F Cooperative. As mentioned above, the present invention can prevent the formation of black powder during the MIG welding of aluminum alloys. The formation and deposition on or around the welding beads. In addition, the strength of the welding is equal to the strength of the substrate and is maintained by controlling the chemical composition of the welding gold. Therefore, the present invention can provide a significant reduction in post-welding procedures for parts that require coating after the welding assembly process. This paper scale uses the Chinese National Standard (CNS) A4 specifications (210x297 male dragon) 11