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喷嘴出口截面形状对冷喷涂涂层性能影响的数值分析

Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2006-12-20

Journal: 机械工程材料

Included Journals: CSCD、ISTIC、PKU

Volume: 30

Issue: 12

Page Number: 84-86

ISSN: 1000-3738

Key Words: 冷喷涂;喷嘴截面;数值模拟

Abstract: 制备冷喷涂涂层的沉积速度、有效喷涂面积及均匀程度与喷嘴出口截面形状有重要关联.通过对冷喷涂射流流场的数值模拟,比对了不同喷嘴截面形状的流场特点.结果表明:矩型喷嘴截面形状有利于大面积均匀涂层生成,相同条件下,所制备涂层的性能优于圆型喷嘴,这与相关试验结果吻合较好.

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