TIP-TIG automatic welding process for dissimilar aluminum alloy
A TIP-TIG, dissimilar aluminum alloy technology, applied in the field of dissimilar aluminum alloy TIP-TIG automatic welding process, can solve problems such as no automatic welding application, and achieve the effect of realizing welding automation, reducing manufacturing difficulty, and reducing skill requirements
Pending Publication Date: 2021-10-15
陕西金鑫电器有限公司
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Problems solved by technology
[0003] At present, the TIP-TIG welding process is mainly used in steel cladding surfacing welding, oil pipeline composite pipeline welding and other industries, and all of them are manual welding, no automatic welding application
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Embodiment 1
[0025] Home model: Casting flange --zlsi7mg-T6; Spiral welded pipe - 5754-H111; joint form: V-slope mouth seam docking; workpiece size: φ896mm; material thickness: 8mm; slope angle: 70o; blunt Edge: 1 mm.
[0026] First, workpiece welding
[0027] 1, use steel wire to clean up the spiral welding pipe and castings within 50mm in the flange slope mouth, then use the duct to blow dust, then use alcohol cleaning; blunt sneakers must use a steel wire or venting cutter to clear the metal gloss;
[0028] 2, adopt the round storage tool to ensure weld gap, the wrong edge satisfies the welding requirements: the root gap: 0 ~ 0.3mm; weld is wrong: ≤0.3mm.
[0029] 3, using φ5 ER4043 electrode manual TIG welding 4 points, then remove the weld spot, then remove the rounding tool, continue to solder; where the weld spot welding length is 50mm, the interval is 200mm, the solder joint is not At 10 o'clock; there should be more than the point-solid solder joint, and no defects such as cracks, air...
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The invention relates to the technical field of dissimilar aluminum alloy welding, and particularly discloses a TIP-TIG automatic welding process for dissimilar aluminum alloy. The TIP-TIG automatic welding process comprises the following steps that after a spiral welding pipe and a casting flange groove are cleaned, a circle supporting tool is adopted for assembling and welding, and thus a welding seam gap and the unfitness of butt joint meet the welding requirement; manual TIG welding is conducted by adopting a phi 5 ER4043 welding rod, firstly tack welding is conducted on four points on an inner welding seam, then the circle supporting tool is removed, and the spot welding of the remaining tack welding points is completed; and cleaning before welding is completed, a special cross arm welding machine is adopted to be matched with a roller frame, an automatic single-face welding and double-face forming welding process (no liner is arranged on the back face) is achieved through a TIP-TIG wire feeding mechanism, and the back face of the welding seam is not treated. The welding quality and the welding efficiency of an 800-1100 kV cast-weld bus shell are improved, the first-pass inspection percent of pass of X-ray and ultrasonic flaw detection reaches 95%, welding automation is achieved, and the production efficiency is improved by more than 30%.
Description
Technical field [0001] The present invention relates to the field of dissimilar aluminum alloy welding technologies, and more particularly to a heterogeneous aluminum alloy TiP-TIG automatic welding welding process. Background technique [0002] In recent years, the demand for GIS products in the 800-1100KV high voltage level is large, and the quality requirements must meet the second level of X-rays, ultrasonic flaw detection, and the entire industry is generally used by manual TIG welding technology, welding quality due to operation. The operation skills and state have a large influence, the welding quality is unstable, especially in the high temperature and high humidity environment in the summer, and the quality problem is more prominent, and the manual TIG welding product is less efficient. There is currently no good solution. [0003] At present, TIP-TIG welding process is mainly used in steel molten storage, oil pipeline composite pipe welding and other industries, and is ...
Claims
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IPC IPC(8): B23K9/133B23K9/167B23K9/235B23K9/32
CPCB23K9/235B23K9/167B23K9/133B23K9/32
Inventor 白焰仵文辉张金宝李兴康樊云龙艾晶
Owner 陕西金鑫电器有限公司