GAS-METAL-ARC WELDING OF ALUMINIUM AND ITS ALLOYS
铝及其合金的气体保护金属极电弧焊
基本信息
- 批准号:02555155
- 负责人:
- 金额:$ 5.38万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Developmental Scientific Research (B)
- 财政年份:1990
- 资助国家:日本
- 起止时间:1990 至 1992
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
It is well known that aluminium and its alloys are very difficult to obtain no porosity, deep penetration and good mechanical properties of the weld metals, when they are arc-welded using an argon atomosphere. An argon-nitorogen mixture gas-metal-arc welding was tried to aluminium and Al-Mg alloy 5083, and the aplicability was examined. The results are as follows.(1) Aluminium plates were welded with aluminium and aluminium-zinc alloy electrode wires using argon-nitrogen gas mixture shielding. The effects of the nitrogen percent in shielding gas and the zinc content of electrode wire on the bead appearance, penetration, porosity, microstructure, hardness and tensile properties of weld metal were examined. Some amount of nitrogen gas addition to the argon shielding gas brought a good bead appearance, deep penetration and less porosity in the weld metal. Zinc addition to the electrode wire decreased the porosity of weld metal. The nitrogen and zinc addition resulted in AlN phase and zinc … More solid solution in the weld metal. The Vickers hardness increased with the nitrogen and zinc addition. The tensile strength of weld metal was equal or higher than those of base metal, but the elongation of weld metal was equal or less than that of base metal and decreased with the nitrogen and zinc addition.(2) Al-Mg alloy 5083 plates were welded with Al-Mg alloy 5183 electrode wire using argon-nitrogen gas mixture shielding. The effects of the nitrogen percent in shielding gas on the bead appearance. penetration depth, porosity, microstructure, hardness and tensile properties of weld metal were examined. Some amount of nitrogen gas addition to the argon shielding gas brought a good bead appearance, deep penetration and no porosity in the weld metal. The nitrogen addition produced fine AlN phase in the weld metal. More than 20% addition of nitrogen into the shielding gas made weld metals having equal or higher hardness than that of the base material. The yield stress and tensile strength of weld metal were close to those base material, but the elongation of weld metal was less than that of base material. Less
众所周知,铝及其合金在氩弧焊时很难获得无气孔、深熔透和良好的焊缝金属力学性能。对5083铝合金及铝镁合金进行了氩氮混合气体保护焊试验,并对其应用性进行了检验。结果如下。(1)采用氩氮混合气体保护,用铝和铝锌合金电极丝焊接铝板。研究了保护气体中氮含量和焊丝中锌含量对焊缝成形、熔深、气孔率、显微组织、硬度和拉伸性能的影响。在氩气保护中加入一定量的氮气,焊缝成形良好,熔深较深,气孔较少。焊丝中添加锌可降低焊缝金属的气孔率。氮和锌的添加导致AlN相和锌 ...更多信息 焊接金属中的固溶体。维氏硬度随着氮和锌的添加而增加。焊缝金属的抗拉强度等于或高于母材,但延伸率等于或小于母材,且随氮和锌的加入而降低。(2)采用氩-氮混合气体保护,用5183铝镁合金焊丝对5083铝镁合金板进行焊接。研究了保护气体中氮气含量对焊缝成形的影响。对焊缝金属的熔深、气孔率、显微组织、硬度和拉伸性能进行了检测。在氩气保护气体中加入一定量的氮气,焊缝成形良好,熔深较深,无气孔。氮的加入在焊缝金属中产生了细小的AlN相。在保护气体中加入20%以上的氮气可使焊缝金属的硬度达到或超过母材的硬度。焊缝金属的屈服应力和抗拉强度与母材相近,但延伸率小于母材。少
项目成果
期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
T. Kuwana, H. Kokuwa and A. Honda: "Effects of Nitrogen and Zinc on Porosity, Microstructure and Mechanical Properties of Ar-N_2 Gas Metal Arc Welded Aluminium" Preprints of the National Meeting of the Japan Welding Society.47. 114-115 (1990)
T. Kuwana、H. Kokuwa 和 A. Honda:“氮和锌对 Ar-N_2 气体金属电弧焊铝的孔隙率、微观结构和机械性能的影响”日本焊接学会全国会议预印本。47。
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- 影响因子:0
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桑名 武: "ArーN_2ガスシ-ルドア-ク溶接におけるアルミニウム溶接金属の諸性質に及ぼす窒素並びに亜鉛添加の影響" 溶接学会論本集.
Takeshi Kuwana:“添加氮和锌对 Ar-N_2 气体保护电弧焊中铝焊缝金属性能的影响”焊接学会论文集。
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KUWANA Takeshi其他文献
KUWANA Takeshi的其他文献
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{{ truncateString('KUWANA Takeshi', 18)}}的其他基金
A Fundamental Study on Chemical Metallurgy in Welding Processes
焊接过程化学冶金基础研究
- 批准号:
61470062 - 财政年份:1986
- 资助金额:
$ 5.38万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
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