厚规格压力容器板探伤不合格原因分析与改进措施
Tianjin Metallurgy(2011)
Abstract
通过运用金相及扫描电镜等手段,对厚规格低合金容器板探伤不合格钢板的内在组织及探伤不合格的原因进行了分析,分析表明,夹杂物导致的微裂纹是钢板探伤不合格的主要原因。提出了降低钢水过热度,采用动态轻压下技术,铸坯、钢板下线堆垛缓冷48h等工艺措施,可有效提高钢板探伤合格率。
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Key words
billet,heavy pressure vessel plate,detection,micro crack,analysis,inclusion
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