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PLASMA TRANSFERRED ARC (PTA) PROCESS FOR OBTAINING EXCELLENT STELLITE-6 OVERLAY WELDED COATINGS
PLASMA TRANSFERRED ARC (PTA) PROCESS FOR OBTAINING EXCELLENT STELLITE-6 OVERLAY WELDED COATINGS
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机译：获得出色的STELLITE-6堆焊层的等离子转移弧（PTA）工艺
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摘要
PURPOSE: Provided is a plasma transferred arc (PTA) process for obtaining stellite-6 overlay welded coatings having excellent surface hardness. CONSTITUTION: In a plasma overlay welding method using stellite-6 overlay welded coatings comprising C 1.2 wt.%, Ni 2.1 wt.%, Cr 28.0 wt.%, Co 62.9 wt.%, Fe 1.8 wt.%, W 4.0 wt.%, the method is characterized in that pretreatment temperature is 50 to 100C; powder feeding rate is 2.0 to 2.2 kg/hr, torch transfer rate is 6.0 to 8.0 cm/min, arc current is 140 to 160 A, oscillation rate is 70 to 100 cm/min.
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机译：用途：提供了一种等离子转移电弧（PTA）工艺，用于获得表面硬度极佳的stellite-6堆焊层。组成：在使用Stellite-6堆焊层的等离子堆焊方法中，该堆焊层包含C 1.2重量％，Ni 2.1重量％，Cr 28.0重量％，Co 62.9重量％，Fe 1.8重量％，W 4.0重量％。 ％，该方法的特征在于预处理温度为50至100℃。送粉速度为2.0至2.2 kg / hr，焊炬传递速度为6.0至8.0 cm / min，电弧电流为140至160 A，振荡速度为70至100 cm / min。
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