The influence of Cu and Mn on liner expansion and microstructure of low expansion cast iron was studied.
围绕Cu、Mn元素对低膨胀铸铁线膨胀特性和组织的影响进行了试验研究。
Numerical analysis of influence of melt viscoelastic rheological parameters on co-extrusion die swell for viscoelastic polymer;
熔体粘弹性流变性能参数对聚合物共挤成型离模膨胀影响的数值分析
Full three dimensional viscoelastic numerical simulation of die swelling process of polymer co-extrusion;
聚合物多层共挤成型离模膨胀过程的三维黏弹性数值模拟
The simulation revealed that the die swell increased with increasing relaxation time and volumetric flow rate.
针对异型材挤出成型流动过程的特点,基于PTT黏弹性本构模型,经合理假设,建立了描述其成型过程的三维等温黏弹性理论模型,并通过DEVSS／SUPG、最小元法Mini-Element和罚函数法等稳态有限元技术,建立了与该模型相适应的快速收敛的稳态有限元数值算法,并以此通过有限元数值模拟,系统研究了松弛时间和进口流量对异型材挤出成型过程的影响,得出了离模膨胀随松弛时间、进口流量增大而增大的规律。
The process principle of thermal expansion mould method(TEMM) was illustrated and the key process procedure was further studied.
对膨胀芯模法制备主承力复合材料管件的工艺原理进行了阐述,对工艺过程的关键环节进行了深入研究,并对该工艺制备的炭/环氧主承力管件进行了轴压强度实验研究。
An expansive model of expansive soils(ESEM) is put forward;and the method that the pressure is confirmed with back analysis according to displacement is given.
对膨胀土膨胀性这一难题,目前通用的做法是施加一个膨胀力,但是无法给出一个合理的解释,膨胀力的大小也是根据经验来施加的,本文提出了膨胀土的膨胀模型(ESEM)并根据土坡的位移采用反演方法来确定了膨胀土的膨胀力;采用公式推导的方式,指出给膨胀土施加膨胀力和施加膨胀变形是一致的;结合降雨分析,运用Drucker-Prager模型编制了有限元程序,选用2范数进行反演运算;计算过程显示,膨胀土膨胀参数与2范数是单值连续具有凹点的,采用牛顿迭代法迭代,计算得出膨胀土膨胀参数;最终的计算结果,确定了膨胀土边坡的膨胀参数以及膨胀力公式。
A Study on Properties of Low Thermal Expansion High Nickel Cast Iron Containing 2％Cr
含2％铬的高镍低膨胀铸铁性能的研究
guillaume alloy
铁镍低膨胀系数合金
Invar low expansion alloy
因瓦低膨胀系数镍铁合金
A nickel-base cast alloy with low expansion coefficient - A new material for welding clamp
低膨胀系数镍基铸造合金—新型焊接夹具材料
The effect of alloying elements on expansion coefficient of greg iron was investigated.
利用正交试验方法,研究了合金元素对灰铸铁膨胀系数的影响;
iron expands when it is heated.
铁加热以后会膨胀。
ultra-low-expansion mirror telescope
超低膨胀率镜望远镜
Effect of difference between thermal and setting expansion rate of the investments on the precision of castings
包埋材料热膨胀率和凝固膨胀率变化对铸件铸造精度影响的研究
Seigniorage-maximizing and Inflation in China:1952-2004;
中国的铸币税与通货膨胀:1952—2004
The rails on a railwway expand on a hot day.
铁路的铁轨在热天会膨胀。
Surveying regulation for expansive soils of railway engineering geology
铁路工程地质膨胀土勘测规则
The effect of recasting on the thermal expansion coefficient of a Ni-Cr ceramic alloy
反复铸造对镍铬烤瓷合金热膨胀系数的影响
bring down prices, the rate of inflation, the cost of living, etc
降低价格、 通货膨胀率、 生活费用等.
The government 's policy is to reduce inflation to 5% .
政府的政策是将通货膨胀降低到5%。
low-expansion foam fire extinguishing system in machinery space
机器处所的固定低膨胀泡沫灭火系统
The rate of inflation decreased to 10% last year.
去年通货膨胀率降低为百分之十。
The Government's main aim is to beat inflation.
政府的主要目标是减低通货膨胀.
The rate of inflation must be held down.
通货膨胀率必须控制在低水平上.