Welding with Flux-Cored Wire Without External Shielding.

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作者：
Cunat, P.J.
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来源：
Soudage et Techniques Connexes | 1981年 / 35卷 / 9-10期
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摘要：
The advantages of flux-cored wires with two cores are pointed out. This process enables the protection of the weld pool from atmospheric nitrogen and permits the nitrogen content of the weld metal to be limited to 200-400 ppm. With conventional cored wires, aluminum is introduced into the weld metal to 700 ppm. Aluminum nitrides lead to metal embrittlement and to a meaningful decrease in weld toughness.
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页码：319 / 334
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