1) fluid head
流体高差
2) fluid temperature difference
流体温差
1.
Introduction is made on a kind of fluid temperature difference sensor that can real-timely test the temperature difference of two bundles of fluids.
介绍了一种流体温差传感器,可实时检测两束流体的温度差。
3) elevation flow deviation rate
高差流量偏差率
1.
With the production development and technology progress, in order to improve the design accuracy, it is necessary to take into consideration the effects of manufacture flow deviation rate and elevation flow deviation rate on the total flow deviation.
该文在已有高差流量偏差率的基础上,定义了滴头的制造流量偏差率、导出了3个流量偏差率最不利组合——流量总偏差率计算式,并提出了流量总偏差率允许值的建议。
4) fluid density difference
流体密度差
5) highly viscous fluid
高粘流体
1.
Using stainless steel tubes(wall thick 1 mm) heated by the direct passage of a current which has a maximum about 500 A, and a aqua CMC (sodium carboxy methyl cellulose),an experimental study of flow boiling heat transfer to a highly viscous fluid in vertical downward flow is presented for a consistency index η= 0.
用大电流直接通电加热不锈钢管，进行了高粘流体流动沸腾传热实验研究，建立了流动沸腾传热给热系数关联式。
2.
n experimental investigation of flow boiling heat transfer to a highly viscous fluid in verticaldownward flow was carried out.
用高粘流体进行了垂直管内流动沸腾传热实验研究，建立了流动沸腾传热给热系数关联式。
3.
Heat transfer enhancement for highly viscous fluids in solution polymerization for synthetic rubber is an important engineering problem which can be solved effectively by using scraped-surface apparatus .
综述了工业化刮壁式搅拌器的型式、刮板形状、刮板材质及其流型、搅拌功耗和刮膜给热系数,并探讨了刮壁机构强化高粘流体传热的机理。
6) high viscosity fluid
高粘流体
1.
Using high viscosity fluid of Xanthan gum solution as experimental material, heat transfer enhancement experiments were respectively made in smooth tube, helix tube, GK tube and SMK tube.
以高粘流体黄原胶溶液为实验介质,分别在光滑管、螺纹管、GK管和SMK管中,进行了强化传热的实验研究。
补充资料：抽芯成型高差大的滑块多级锁紧结构
在压铸模设计中, 常常会遇到同一抽芯而各成型高度相差较大的零件, 如果采用斜拉杆或弯销抽芯, 习惯上采取的措施是增加滑块的高度,以满足滑块的退位空间,其结果是滑块的重量增加,模框的强度降低。
图1 是汽车油泵调速器前壳压铸件示意图, Ⅰ- Ⅰ分型面需用抽芯才能完成脱模,其最低抽芯高度Hmin 为17mm, 最大抽芯高度Hmax为45mm, 为了保证滑块有足够的退位空间而不发生自锁, 滑块的高度必须大于或等于45mm。为避免抽芯距离过大造成滑块体积增加, 在设计中采用了局部增高多级锁紧结构,如图2 所示。P 是高于17mm低于45mm的面,N是高于45mm的面,M面是与N面同高且保证N 面受力平衡的辅助结构。α为抽芯角,β1 、β2 为锁紧角,β1 、β2 不仅具有锁紧作用,而且在开模抽芯时还具有让位的作用,所以β1 、β2 必须大于α, 而且β2 应大于β1 , 否则开模时, 滑块会出现自锁。锁紧角β2 也可以等于β1 , 但由于制造时有误差, 如果误差大, 则β1和β2 形成的锁紧面会出现干涉。在压铸件调速器前壳模具设计中, α取23°, β1 取26°, β2取30°,实现了安全生产。
总之, 对于那些抽芯高度相差大的滑块,采用多级锁紧结构,对减小滑块的重量、延长模具寿命,节约模具材料具有重要的作用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条