起重机钢结构材料在极端温度条件下的适应能力  

Adaptive capability of the steel structure material of crane under the extreme temperature conditions

作　　者：徐洪泽 苏冬 姜保国 陈晋 

机构地区：[1]大连重工.起重集团有限公司,大连116013

出　　处：《起重运输机械》2010年第12期23-26,共4页Hoisting and Conveying Machinery

摘　　要：以起重机钢结构在极端环境温度条件下的材料选择、设备自身生存能力及承载能力的评估、钢结构材料在高温条件下的蠕变及蠕变极限、钢材在低温环境的脆性断裂及临界脆化温度等问题的分析,论述了起重机钢结构材料在高温及低温条件下工作所面临的危险。After analyzing the problems such as the material selection for the crane steel structure under extreme temperature conditions,the evaluation of the equipment viability and loading capability,the creeping and the creeping limit of the steel structure material under high temperature conditions,and the brittle fracture and the critical brittle temperature of the steel under low temperature environment,the paper discusses the hazards facing by the steel structure material of the crane under high and low temperature conditions.

关 键 词：塑性变形 蠕变 蠕变极限 脆性断裂 临界脆化温度 

分 类 号：TH21[机械工程—机械制造及自动化] TG142.15[一般工业技术—材料科学与工程]