压扁试验
- 名flattening test
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ERW焊管压扁试验性能的评价与提高
Property Appraisal and Improvement of Flattening Test for ERW Pipe
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Cr-Mo型钢管焊接接头压扁试验不合格原因分析
The reason of unacceptable joint in flattening test of Cr - Mo steel tube weld
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介绍了国内工业用非重复充装焊接钢瓶型式试验的要求和主要项目,并与欧盟标准EN12205-2001及美国标准DOT-39在材料要求、爆破试验、跌落试验和压扁试验等方面进行了比较。
Type experiment requirements and main items on nor-refillable steel welded cylinder for industry cylinder and main items are introduced , and comparison are made on material requirements , explosive test , fall down test and flattening .
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压扁试验中试样的最大变形部位出现裂纹状缺陷。
In flattening test , the crack happened in the lagest deformation parts .
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GB/T13440-1992无缝气瓶压扁试验方法
Method for flattening test of seamless gas cylinders
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大容积钢制无缝气瓶压扁试验测速系统设计
Design on cutting edge speed measurement system of flattening test for seamless gas cylinder
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锅炉钢管压扁试验研究
Research on Flattening Test on Boiler Tube
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本设计主要完成大容积钢制无缝气瓶压扁试验压头速率的测量。
This design mainly finishes the measurement of Cutting Edge Speed of flattening test for Seamless Gas Cylinder .
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通过采用焊后局部回火处理提高了焊缝金属的塑性,从而使接头压扁试验合格,其强度也满足设计要求。
After experimental study , it is found that the weld metal ductility is improved by local post weld tempering treatment . In this way , the results of flattening test for tube joint are acceptable and joint strength is still satisfied for design requirement .
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焊接过程中金属流线方向的改变及钢中夹杂物数量较多,将导致压扁试验时断口多在焊接热影响区一侧。
Change of the metal flow line orientation during welding and the significant amount of inclusions in the steel are responsible for the fact that during flattening test , the fracture quite often take places at the side of the test piece under thermal effect by the welding .
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空心件楔横轧压扁失稳的试验研究
Experimental Study of Flat Press and Non-Stability about Cross Rolling of Hollow Parts