deformation retraction

Analysis and Calculation of Reinforced Concrete Shrinkage;

钢筋混凝土的收缩变形分析及计算

The cause for volumetric shrinkage and warpage was ana- lyzed.

以某厂生产的精密塑件——电子接插件为例,通过分析该塑件体收缩变形和翘曲变形的原因,以正交试验为设计准则,利用 Moldflow 软件对各种工艺参数组合进行注射成型过程的模拟。

In order to study the early-age cracking tendency of high strength concrete under circumfer-entially restrained condition, the non-contact shrinkage measuring device was developed to determine the free shrinkage of high strength concrete with water to cement ratio of 0.

为研究环向约束条件下高强混凝土早期开裂趋势,在单面干燥条件下应用非接触式混凝土收缩变形测定仪测试了水灰比为0。

By use of digital camera to collect picture quickly and technology of computer to deal with picture, a new measurement method for residual contraction distortion after welding is introduced in this article.

介绍了一种应用数码相机快速采集图象和计算机的数字图象处理技术实现焊后收缩变形测量的新方法。

The technology of injection molding of PP-R fittings was conditioned to reduce their shrinkage strain and to make PP-R fittings keep a good appearance and properties.

通过对无规共聚聚丙烯(PP-R)管件成型加工过程中分子排布、取向、收缩等特性的分析,总结出影响制品收缩变形的因素有注射量、注射速率、注塑压力、注射温度、模具温度、注射时间、保压时间、制品壁厚及浇口尺寸等,对PP-R管件的注塑工艺进行了调整与优化,减少了PP-R管件的收缩变形,对PP-R管件的生产有指导作用。

The shrinkage strain,crack length and width are measured when the shrinking of mortar becomes stable.

研究了砂浆早期(0~6 h)的收缩变形特性,测试了其收缩变形量及变形稳定后裂缝的长度与宽度。

Some measures were taken in layout design and structural design to solve the shrinkage distortion problem of strip material during the drawing in a progressive die.

分析了手电筒开关座的成形工艺,在排样设计和模具结构设计中采取了针对性措施,有效地解决了在级进模中进行拉深时条料发生收缩变形的问题,完成了该零件的级进模设计,取得了良好的效益。

According to the cracks commonly produced in c as t-in-site reinforced concrete floor-slab, based upon detailed analysis the ca using reasons are pointed out, which mainly caused by shrinkage distortion, temp erature changes and construction factors.

针对目前住宅建筑现浇钢筋混凝土楼板出现裂缝的现象,通过仔细分析、研究,指出裂缝主要是由于混凝土的收缩变形、外界温度变化及某些施工因素造成的,并提出了一些具有针对性的防治措施。

Based upon analysis of the reasons caused the cracks on reinforced concrete wall, from temperature changes, shrinkage deformation, external force action and other aspects corresponding preventive measures are proposed as well as construction method in order to reduce concrete cracks.

对钢筋混凝土墙体裂缝产生的原因进行了分析,从热胀冷缩、混凝土的收缩变形、外力振动等方面进行了论述,提出了预防混凝土墙体裂缝产生的措施,较详细地阐述了施工材料、施工方法等具体做法,以减少混凝土裂缝的数量和宽度的效果。

The effective and economical approach to solve the shrinkage deformation was found.

对轿车后保险杠塑料裙围开发过程中的所有环节进行研究,尝试用CATIA软件进行产品优化及模具改进,同时优化注塑工艺参数,并采用Moldflow软件对改进效果进行数值模拟,找到了一种经济有效的解决收缩变形的途径。

Using regression analysis method,the impact of the welding current,arc voltage,welding speed and the thickness on welding shrinkage deformation is studied.

采用钨极氩弧焊对2205双相不锈钢进行了焊接试验,用回归分析的方法研究了焊接电流、电弧电压、焊接速度和板厚对焊接收缩变形的影响;采用切条法测试了2 mm厚焊接试件的残余应力,找到了纵向残余应力沿焊缝截面的分布规律,并用正交试验方法对焊接工艺参数进行了优化。

bishrinkage yarn

双收缩变形丝《化纤》

Longitudinal contraction deformation：The component contracts in the weld direction after weiding.

纵向收缩变形：构件焊后在焊缝方向上发生的收缩。

Transverse/cross/lateral contraction deformation：The component contracts in the upright direction of weld after weiding.

横向收缩变形：构件焊后在垂直焊缝方向上发生的收缩。

Factors Affecting Shrinkage of Self-Compacting Concrete at Early Age and Control;

自密实混凝土收缩变形的影响因素与控制

Experimental Study on Dry Shrinkage Deformation of Autoclaved Flyash-Lime Brick Masonry

蒸压粉煤灰砖墙体收缩变形性能试验研究

Welding Shrinkage Deformation and Residual Stress of Duplex Stainless Steel 2205

2205双相不锈钢焊接收缩变形与残余应力研究

STUDY ON THE SHRINKAGE DEFORMATION OF THIN COMPOSITE LAMINATES DURING CURING PROCESS

复合材料薄板的成型固化收缩变形研究

SHRINKAGE DISTRIBUTION OF CONCRETE WITH ONE SURFACE EXPOSED TO DRY CONDITION

单面干燥条件下混凝土的收缩变形分布特征

Highway and Railway Engineering Constringency Transmogrification Testing Study of Pavement Material and Thermal-force Coupled Analysis of Pavement Structure;

路面材料收缩变形试验研究及路面结构热—力耦合分析

The Shear Lag Effection and Concrete Deformation Research on Construction Stage on Wide Box Girder- Continuous Rigid Frame Bridge

宽箱梁连续刚构桥施工阶段剪力滞效应及混凝土收缩变形研究

contracted channe

收敛形管道, 收缩形流道

Analysis on creep strain for ready-mixed concrete during shrinkage

商品混凝土收缩过程中的徐变变形分析

Analysis on the Contraction and Time Deformation of Long-spanned PC Cable-stayed Bridges

大跨度PC斜拉桥收缩和徐变变形分析的研究

Curing Shrinkage and Warpage Deformation of Composite Thin Laminates at Room Temperature

复合材料薄层板常温固化收缩及翘曲变形

The Structure and Properties of Differential Shrinkage Multi-filament Air-jet Texturized Yarn;

异收缩丝空气变形（多重变形）加工成纱结构与性能

That gradually would reduce the orbit from an elongated ellipse to smaller, progressively more circular shapes.

这麽做会逐渐将轨道从扁长椭圆形收缩成较小且逐渐变圆的形状。

Freyssinet flat jacks may be required to compensate for distortions arising from creep and shrinkage.

弗涅新奈氏扁千斤顶可用以调整收缩与徐变产生的变形。

Study of strain rate imaging in evaluating the postsystolie shortening in ischemic myocardium

应变率成像评价缺血心肌收缩后收缩