EXPERIMENTAL ANALYSIS OF KEY PARAMETERS OF LASER ION WELDING OF HONEYCOMB PLATE HEAT EXCHANGER

文献类型： 外文期刊

第一作者： Du, Xinwu

作者： Du, Xinwu;Jin, Xin;Lv, Huangzhen;Wang, Shiguang

作者机构：

关键词： laser deep penetration welding; honeycomb plate heat exchanger; process parameters; hydraulic bulging; experimental analysis

期刊名称：THERMAL SCIENCE （ 影响因子：1.625； 五年影响因子：1.701 ）

ISSN： 0354-9836

年卷期： 2019 年 23 卷 5 期

页码：

收录情况： SCI

摘要： The combination of laser deep penetration welding and hydraulic bulging is the most advanced production technology of honeycomb plate heat exchanger in the world. The micro-shape and heat transfer effect of the heat exchanger of honeycomb plate are mainly determined by the distribution mode of welding spot, weld shape and welding point arrangement. Therefore, the important principle of the honeycomb plate heat exchanger processing is to improve the pressure as much as possible to form turbulence while ensuring the welding quality. In the present experimental work, the effect of different weld shape and weld distribution of honeycomb plate heat exchanger produced by 06cr 19n10 plate using hydraulic bulging and laser deep penetration welding on hydraulic bulging effect was studied carefully. The results showed that the optimal arrangement method is the equilateral triangle. The welding process parameters were optimized to increase the welding strength. The results showed that when the welding power was 2.1 kW, the bonding strength of the weld was the highest, at 52.70 kN. When the welding power was 2.2 kW and the gap between the welding points was 30 mm, the tensile strength of the honeycomb plate was the best, at 19.0 MPa. The results of this paper provide experimental support for industrial production of honeycomb plate heat exchanger.

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