发布时间:2025-01-18 10:47:31
M24高强度螺栓:
10.9S时,它的屈服强度为940MPa,可受拉力为:
F=940*3.14*20.752^2/4=317773N=317.773KN
8.8S时,它的屈服强度为660MPa,可受拉力为:
F=660*3.14*20.752^2/4=223117.4N=113.117KN
用高强度钢制造的,或者需要施以较大预紧力的螺栓,皆可称为高强度螺栓。高强度螺栓多用于桥梁、钢轨、高压及超高压设备的连接。这种螺栓的断裂多为脆性断裂。应用于超高压设备上的高强度螺栓,为了保证容器的密封,需要施以较大的预应力。
关于装修今天我房间刚刷的墙是那种很深的粉色真的超级丑有没有办法在房间装饰上下功夫
2025-01-18 10:47:31 2025-01-18 10:47:31 2025-01-18 10:47:31 2025-01-18 10:47:31 2025-01-18 10:47:31 2025-01-18 10:47:31 2025-01-18 10:47:31 2025-01-18 10:47:31 2025-01-18 10:47:31 2025-01-18 10:47:31 2025-01-18 10:47:31弱电综合布线的自主创业白手起家怎样和装修公司之类的企业合作谢谢
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