把焊接电弧作为一个发尘点源，应用大气湍流扩散理论，建立了焊接过程中烟尘扩散的数学模型。
A mathematical model of fume diffusion in welding process was founded by considering welding arc as a spot source of generating fume and supplying the turbulent diffusion theory.
本发 明主要用于石油、化工、冶金、机械、造船等领域的奥氏体不锈钢焊接。
The invention is mainly applied to the austenitic stainless steel welding in the fields of petroleum, chemical industry, metallurgy, machinery and naval construction.
给出了在役焊接是否发穿的判别公式，从而指导现场在役焊接，以及在役焊接施工工艺的制定。
Proposed distinction formula is brought out for the burning through in-service welding. It can instruct in-service welding and welding procedure in service welding construction.
给出了在役焊接是否发穿的判别公式，从而指导现场在役焊接，以及在役焊接施工工艺的制定。
Proposed distinction formula is brought out for the burning through in-service welding. It can instruct in-service welding and welding procedure in service welding construction.
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