The method and results of the study on formation condition for internal crack in continuous casting slab were reviewed.
评述了连铸坯内裂纹形成条件的研究方法和结果。
The method and results of the study on formation condition for internal crack in continuous casting slab were re viewed.
评述了连铸坯内裂纹形成条件的研究方法和结果。
Meanwhile, a series of experiments were carried out for the internal crack healing by using the thermo-mechanical simulator.
在实验结果的基础上,提出了轧制变形条件下轧件内部裂纹的愈合机理。
The internal crack of bloom is analyzed, and some improvement measures are put forward, which got some effect through the production.
本文分析了方坯低碳钢内部裂纹产生的原因,并提出了改善措施,通过生产实践取得了一定的效果。
The result reveals that the practical secondary cooling system is not suitable and easy to cause quality defects such as internal crack.
结果表明,目前的二冷制度不甚合理,易产生内裂纹等质量缺陷。
The improved technical ways were conducted by analyzing origination of billet-broken and internal crack from the viewpoint of alloy composition.
从合金组成等方面对连铸线坯断裂和内裂纹的产生原因进行了分析,提出了相应的技术改进措施。
So we shall take every factor into consideration and take multi-variable analytical methodology to optimize the whole system in order to prevent the internal crack.
在工艺设计和工艺调整时不能孤立片面地考虑某个因素,而应采取多变量分析方法,力图使整个系统优化,从而减轻内裂现象的出现。
These results verify that the severe mold wear is one of the most important reasons that induce the internal crack and even the breakout at the off-corner of billet.
从而验证了严重的结晶器磨损是连铸坯产生偏角区内裂纹乃至漏钢事故的重要原因之一。
This paper mainly analyzes the process of bloom casting for heavy rail and internal cracks like central crack and so on in order to solve the internal quality problems.
对方坯重轨钢系列铸坯内部产生的中间裂、中心裂等缺陷进行工艺探索研究,以解决生产过程中出现的内部质量问题。
The present invention discloses a system and method for inspecting internal crack, specifically providing a method (60) for inspecting an internal cavity (44) in a part (12).
本发明公开了一种用于检测内部裂纹的系统及方法,具体而言,本发明提供了一种用于检测零件(12)中内部腔体(44)的方法(60)。
It is of vital process step that the temperature of rolled products when inceptively charged into soaking pit for preventing steel from having flakes and internal crack, etc.
结果表明:当锻造产生了白点和过热缺陷时,牙轮牙爪的力学性能明显下降,尤其是塑性指标和冲击韧度降低明显。
Uniaxial tensile experiments are conducted to study the influence of 3D internal crack dip angle on tensile mechanical properties and fracture features of rock-like material.
采用试验手段研究单轴拉伸条件下内置三维裂隙倾角对类岩石砂浆材料力学特性及断裂特征的影响。
On the condition that there is no material commutation with outside, healing of internal crack and hurt of material depends on the move of internal material and the change of structure.
在与外界无物质交换的条件下,材料内部裂纹与损伤的愈合靠内部物质迁移及结构变化完成。
Based on the quantitative data of internal crack by image recognition system of sulfur print and in the light of internal crack mechanism, a statistical analysis for internal crack is made.
在利用硫印图像自动判级系统得到的内裂定量化数据的基础上,结合连铸板坯内裂产生机理,对内裂进行了统计分析。
The stress required for producing internal crack decreases since there are loci of cracks in the slab caused by the surface crack, so the longitudinal cracks from inner to surface form easily.
由于铸坯表面裂纹形成的裂纹灶,降低了产生内裂所需要的应力值,易于形成内、外相连的纵裂。
Meanwhile, the influences of pipeline internal pressure, wall thickness, crack arrest length and initial crack velocity on the crack driving force (crack propagation) are further studied.
进而分析了管道内压、壁厚、裂纹止裂长度和初始裂纹速度对裂纹驱动力(也即裂纹扩展)的影响。
Bearing parts in the process of hardening cooling by internal stress due to the formation of quenching cracks crack said.
轴承零件在淬火冷却过程中因内应力所形成的裂纹称淬火裂纹。
The edge internal branch crack problems for half-plane in antiplane elasticity are solved with complex potentials and singular integral equation approach.
利用复变函数和奇异积分方程方法,求解反平面弹性中半平面边缘内分叉裂纹问题。
The paper presents the design criteria and method for arresting crack and burst of the internal pressured vessels of big pipes with circular surface crack by arched strip and wound wire.
本文介绍了含有表面环向裂纹的内压简体及大型管道采用轴向加弧形务板与钢丝缠绕的止裂、抑爆设计原则及设计方法。
It was very difficult for high cr cast Fe hollow ball valve in investment casting due to its internal hollow and full close as well as high crack susceptibility.
高铬铸铁空心球阀的精密铸造难度较大,球阀内部必须空心、全封闭,同时高铬铸铁的裂纹敏感性极强。
Sensitivity coefficient obtained from calculation can represent how much the internal temperature variation and contraction affects the early crack of concrete structure.
计算得到的敏感系数能够表示结构内部温度变化和收缩这两个因素对于混凝土结构早期开裂的影响程度。
The present theory can be applied to nonlinear geometrical and nonlinear physical crack problems for simple materials with internal variables or fading memory, within the framework of local theory.
本理论可应用于具有内变量或衰退记忆的简单物质在局部理论范围内的几何非线性和物理非线性裂纹问题。
Production practice proof that the forging process can be used to control formation of inclusion crack effectively and improve internal quality greatly.
生产实践证明,采用该工艺可有效控制夹杂性裂纹的形成,提高锻件内部质量。
The result of the analysis and application show that the crack of pinhole rib is caused by the impact produced by fix error, the unreasonable structure of pinhole rib and internal stress.
分析和应用结果表明,造成销孔凸缘裂纹的原因是制造过程中定位误差等引起的冲击力、销孔的凸缘曲线结构不合理及应力三个因素引起的。
Large stone porous asphalt mixes (LSPM) base is a kind of pavement internal draining water structure. It can promptly detain pavement interior water, and can effectively reduce the reflection crack.
大粒径透水性沥青混合料(LSPM)基层是一种路面内部排水结构,能及时排走滞留在路面内部的水分的基础上,能有效地减少反射裂缝的发生。
The hydration heat of massive concrete does not emanate easily, so the internal temperature will be very high which will generate high thermal stress, then the temperature crack will appear.
大体积混凝土的水化热不容易及时散发,内部温升将会很高,从而产生很大的温度应力,导致出现温度裂缝。
The mechanism of crack is that internal stress in concrete material caused by its restricted deformation is greater than tensile strength of material generally.
就混凝土自身而言,产生裂缝的机理一般认为是因为混凝土材料变形受约束所引起的内应力大于材料抗拉强度的缘故。
When the component is installed on an airplane, this internal damage can lead to crack initiation and propagation, resulting in component fracture.
如果把这样的部件安装在飞机上,其内部损伤会导致裂纹并扩展,最终造成部件断裂。
Some measures have been taken to improve mechanics performance and median crack has been removed through studying internal component.
研究转炉冶炼spa - H耐候钢带的内控成分,探讨为改善力学性能、中间裂纹而采取的工艺措施。
However, some problems, such as film crack and falling off from the substrate, appear during the subsequent processing because of the high internal stress of SU-8 photoresist.
然而SU - 8胶在工艺过程中会产生很大的内应力,导致在后续的工艺过程中出现胶体开裂,甚至从基底上脱落等现象。
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