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1)  critical BHF
临界压边力
2)  critical blank holder force
临界压边力
1.
Experimental research on critical blank holder force of rectangular box flange wrinkling;
盒形件法兰起皱临界压边力的试验研究
2.
Study on influencing rule of critical blank holder force of rectangular box flange wrinkling;
盒形件法兰起皱临界压边力影响规律研究
3)  critical pressure
临界压力
1.
New theory in the front of theoretical basis research of molecular thermodynamics 4: on molecular structure of organic compound and theoretical equation of critical pressure;
分子热力学前沿基础领域中的新理论4:论有机纯质的分子结构与临界压力理论方程
2.
Prediction of the critical pressures of alkanes using a quantitative structure property relationship;
应用QSPR方法预测烷烃的临界压力
3.
The critical pressure of two spans beams with one end fixed and the other hinge joined;
一端固支一端铰支二跨梁屈曲的临界压力
4)  critical load
临界压力
1.
The curvature formula of tiny curved rod,together with the vector method of area,is applied to inference for Euler formula about critical load of slender compressive rod which one end is fixed and another is free.
利用杆件微弯的曲率公式和面积向量法,求得一端固定、一端自由压杆的临界压力欧拉公式,为该约束条件下细长压杆的临界压力公式推导提供了另一种方法。
2.
And then,the equations are applied to inference for Euler formula about critical load of slender compressive rod with common constraints.
利用细长压杆微小弯曲的平衡条件和曲率计算公式,得到了统一的压杆转角方程和挠曲线方程,并将其用于几种常见支承条件的细长压杆,方便地求得了相应压杆的临界压力欧拉公式。
3.
In elastic mechanics, it is common practice to calculate critical loads in buckle of thin plates by means of double triangle series.
弹性薄板屈曲的临界压力计算,在弹性力学中一般都是采用双三角级数解法,计算过程比较复杂,工程中应用不方便。
5)  pressure boundary
压力边界
1.
Numerical simulation method for gaseous flow in micro-channel with pressure boundary conditions;
基于压力边界的微流道气体流动数值模拟方法
2.
In the present work, the gaseous flow and heat transfer characteristics in micro-channel are examined using Direct Simulation Monte Carlo method with specified pressure boundary conditions.
本文用直接模拟蒙特卡罗方法对给定进出口压力边界条件下微通道内气体的流动换热特性进行了数值模拟,给 出了壁面与流体的温差对气体沿程压力、温度及数密度分布的影响。
6)  supercritical pressure
超临界压力
1.
Measurements of coefficient of convective heat transfer for endothermic hydrocarbon fuel up to supercritical pressures.;
超临界压力下吸热型碳氢燃料的对流给热系数测定
2.
Analysis and countermeasures of steam-excited vibration of supercritical pressure steam turbine;
超临界压力汽轮机蒸汽激振问题分析及对策
3.
In order to explore the underground heavy crude over 2000 meters in depth,a project of steam injection for supercritical pressure steam generator was designed and compared with the project of hot water injection by raising pressure of the former set hot water boiler.
为了解决埋深超过 2 0 0 0m的深层稠油开采难的问题 ,提出了一种超临界压力蒸汽发生器的开采方案 ,并与其他注汽方案进行了比较 ,同时研究了超临界压力热流体在地面管线和井筒中流动的规律。
补充资料:各种材料拉深时的单位压边力数据
在单动压力机上拉深时的单位压边力

材     料
q/MPa
0.8~1.2
紫铜,杜拉铝(退火的或刚淬火的)
1.2~1.8
黄铜
1.5~2.0
压轧青铜
2.0~2.5
20钢、08钢、镀锡钢板
2.5~3.0
软化耐热钢
2.8~3.5
高合金钢,高锰钢,不锈钢
3.0~4.5

在双动压力机上拉深时的单位压边力

工件复杂程度
q/MPa
难加工件
3.7
普通加工件
3.0
易加工件
2.5
材    料
单位压边力q/MPa
铝(退火状态)
0.8~1.2
铝(硬态)
1.2~1.4
黄铜(退火状态)
1.5~2.0
黄铜(硬态)
2.4~2.6
铜(退火状态)
1.2~1.8
铜(硬态)
1.8~2.2
康铜BMn40-1.5(硬态)
2.6~2.9
可伐合金4J29(退火状态)
3.0~3.3
钼(退火状态)
4.0~4.5
软钢t<0.5mm
2.5~3.0
软钢t>0.5mm
2.0~2.5
不锈钢1Cr18Ni9Ti
4.5~5.5
镍铬合金Cr20Ni80
3.5~4.0
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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