钛及钛合金的焊接应用 (一)钛管的氩弧焊某厂将厚2毫米的TA2钛板(退火状态),在圆盘剪上剪成100.5±0.2毫米宽的带材,用氩弧焊对接接长,经九辊卷管机卷成外径φ33毫米回弹张口3～4毫米的管坯。然后将管坯焊成φ33×2的管,分别轧制成φ29.7×1.9、φ27.7×1.86、φ27×1.5、φ25×1.5几种规格的管子。其工艺过程大致为: 剪板→带材对焊→卷管→碱洗→酸洗→焊接→轧制→退火。 Welding of Titanium and Titanium Alloys (I) TIG welding of titanium tubes A TA2 titanium plate (annealed state) with a thickness of 2 mm was cut into 100.5 ± 0.2 mm wide strip on a circular shears, Weld butt joint length, rolled by the nine-roll coiling machine diameter φ33 mm rebound mouth 3 ~ 4 mm tube. Then the tube welded into φ33 × 2 tube, respectively, rolled into φ29.7 × 1.9, φ27.7 × 1.86, φ27 × 1.5, φ25 × 1.5 several specifications of the tube. The process is roughly as follows: cutting board → strip welding → pipe → caustic → pickling → welding → rolling → annealing.