薄底
![薄底](../cache/1341039.jpg)
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一种薄底液氮低温容器
A Liquid Nitrogen Vessel with Thin Wall
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弹壳类零件具有壁薄、底厚的结构特点,为了提高其组织致密度和机械性能,宜采用冷挤压工艺生产该类零件。
Cartridge case is a kind of part with thin wall and thick bottom . It 's a preferred forming process as cold extrusion in order to improve both compactness in structure and mechanical property for this kind of part .
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随着DI材厚度的减薄,拱底耐压性能会下降,因此,需要分析罐底形状对拱底耐压性能的影响,以便于对罐底形状进行设计,提高两片罐的抗拱底翻转能力。
As the dome reverse pressure will decrease with the thickness of DI tinplate reduction , it is necessary to analyze the influence of the base section on the dome reverse pressure of two piece can so as to improve it by new base design .
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孤岛式薄顶软底工作面推垮型冒顶分析
The analysis of pushing prop over in insular coal face with thin roof and soft floor
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深冲过程中,法兰区周向受压而增厚,凹模圆角处减薄,杯壁减薄,杯底厚度基本不变;
The thickness at the flange increases and almost unchanges at the bottom of cup while near the concave corner of the die decreases during deep drawing .