The casting fluidity, ratio of line contraction, casting stress and heat crack tendency were tested.
分析测定了中铬抗磨铸钢的流动性、缩孔率和铸造应力。
Mechanical stress can obviously affect intensity, distribution of stress through the experiments and tests. The produce and form of casting stress are affected.
通过在实验室与生产条件下所进行的判断性试验确证，机械阻碍应力对铸造残余应力的大小、分布有着极为显著的影响。
On the other hand, the improper heat treatment operation can not completely relieve the casting stress and remnant stress, and further enhances generation and expansion of cracks.
另一方面，热处理工艺不当使得铸造应力及机加工的残余应力无法彻底消除，这样加剧了裂纹的产生和扩展。
Design improvement is in three stages partial, geometrical stress concentration improvement, pure casting technology improvement and a forge-weld box body design.
设计改进分三个阶段，即局部几何性应力集中改进、提高铸造质量的纯工艺改进和锻焊组合结构抱轴箱体的设计。
The interaction between casting and mold has a significant effect on the distribution of thermal stress during solidification.
铸件-铸型之间的相互作用对铸件凝固过程中热应力的分布有很大的影响。
Residual stress distribution for engine cylinder body made of casting aluminum alloy was investigated completely using X-Ray nondestructive detection method.
利用X射线无损检测方法，对铸造铝合金制造的某发动机汽缸体的残余应力分布进行了全面分析。
In the process of diesel engine manufacturing, the cooling efficiency of the casting core of cylinder head is critical to the thermal stress analysis.
在内燃机的生产过程中，气缸盖铸造水芯的冷却效率对于发动机的热应力分析至关重要。
Process bars can effectively reduce residue stress in casting.
合理的工艺筋可有效降低铸件的残余应力。
Methods the specific specimens of modeling casting framework was designed and the residual stress was measured.
方法设计专门试件模拟铸造支架对残余应力进行测定。
Shrinkage and shrinkage porosity, stress and deformation often occurs during the production of heavy steel casting.
大型铸钢件在实际生产中易产生缩孔缩松、应力变形等缺陷。
But the instruments of testing heat check, stress and linear shrinkage of casting alloy at present are not only inconvenient in operation but also unitary in function.
已有的测定铸造合金热裂、应力、线收缩参数的仪器不仅操作不便，而且功能单一。
A new multifunctional device for testing linear shrinkage, stress and heat check of casting alloy easily and quickly is developed in the paper.
本文研制一种新型铸造合金线收缩-应力-热裂特性多功能测定仪，它可以方便准确的测定金属热裂、应力、线收缩特性。
A finite element mathematical model was developed to calculate the thermal elastoplastic stress of continuous casting billet in mold.
建立了结晶器内连铸坯热弹塑性应力有限元数学模型。
A new type of multi-function system for testing linear shrinkage, stress and hot cracking of casting alloy is introduced in the paper.
介绍一种新型铸造合金线收缩-应力-热裂特性综合测试系统。
The casting residual stress is one of the major factors to decreasing machining precision and dimension stability.
铸件的残余应力是影响铸件加工精度及尺寸稳定性的主要原因之一。
At last, as the example of squeeze casting with large ratio of height to diameter, the temperature field and stress field of high-leg casting were simulated and analyzed.
最后，以高脚杯形挤压铸件作为大高径比挤压铸件的实例，对其挤压铸造过程中的温度场和应力场进行了模拟和分析。
The results show that the partial unmelted region, casting defect structure and secondary crack form in the welding seam, which result in the low stress breakage of the samples.
结果表明：在焊缝区域内存在着局部未熔区以及铸造疏松组织和二次裂纹等缺陷，这是导致试样低应力断裂的根本原因。
Hardness can do 61 — 65hrc maturation process is: annealing, softening after casting machining, machining of air cooling after quenching and low temperature stress tempering.
硬度能做到61——65hrc成熟工艺是：铸造后软化退火，便于加工，加工后空冷淬火加低温去应力回火。
The heat transfer in the mold and stress distribution in the bloom at different casting speeds were obtained by using the model.
应用模型分析了大方坯连铸结晶器内的传热过程和坯壳的应力分布。
So it is necessary to develop the coupled model of heat transfer and stress for continuous casting billet.
所以，开发连铸坯凝固传热与应力分析耦合模型是非常必要的。
In order to calculate residual stress in the casting, different heat transmission models before and after shake out had been established.
针对残余应力的计算，结合铸造中落砂工艺，对落砂前后不同的传热模型进行了相应的调整。
This paper is a brief introduction of the calculating principle and method of the transient temperature fields and the residual stress fields in the casting during the process of solidification.
本文扼要介绍铸铁件在浇注后凝固过程中瞬时温度场及残余应力场的计算原理和方法。
Using the ANSYS finite element analysis software, thermal analysis and thermal stress analysis of side dam in the strip casting process are carried out to explain the cause of side dam cracking.
采用ANSYS有限元分析软件，分析了侧封板在铸轧过程中温度场和热应力场，由此解释侧封板产生裂纹的原因。
By contrasting curved bridge and straight bridge, influence of dead load and prestressing force on the stress in cantilever casting period of curved Bridges is analyzed.
通过曲线箱梁桥与直线箱梁桥的对比，模拟计算并着重分析了施工阶段自重、预应力等因素对曲线箱梁桥悬浇时应力的影响。
The distribution of thermal stress in the pulling straightening roller of slab casting machine is calculated with finite element method.
采用有限单元法计算板坯连铸机拉矫辊热应力分布。
The numerical simulation of stress field can provide some information to deformation and the rate of shrink which in the process of casting.
铸造过程应力场数值模拟得到涡轮叶片铸造过程中的变形情况。
Therefore, the application of mathematical analysis of the temperature and stress field of slab, which has important practical significance in continuous casting production.
因此，应用数学方法分析铸坯的温度及应力场对连铸生产具有重要的现实意义。
For the convenience of casting, machining, transporting, etc, the beam of large-scale hydraulic forging press has always been designed as combined structure and connected with pre-stress bolts.
大型液压机的横梁由于铸造、加工、运输等原因，大多设计成组合结构，采用预紧螺栓组连接。
For the convenience of casting, machining, transporting, etc, the beam of large-scale hydraulic forging press has always been designed as combined structure and connected with pre-stress bolts.
大型液压机的横梁由于铸造、加工、运输等原因，大多设计成组合结构，采用预紧螺栓组连接。
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