Numerical simulation for casting process may optimize craft design, shorting trial cycle, cut the cost, decrease casting defect and assure the casting quality.
铸造过程的数值模拟可以优化工艺设计，缩短产品试制周期，降低成本，减少铸件缺陷，确保铸件质量。
The results showed that the root reason for valve body failure was seriously casting defect exist and its big and density shrinkage porosity form the original crack;
结果得出：阀体失效的主要原因是阀体本身存在严重的铸造缺陷，铸造疏松严重、孔洞尺寸大乃于形成原始裂纹源；
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。
This research USES rough sets to reduce this factors, then adopts radial basis function networks to predict and diagnose the continuous casting slab defect.
提出用粗糙集理论简化这些因素，然后采用径向基函数网络对连铸板坯缺陷进行预报诊断。
The factors which have an effect on the formation of a kind of defect called "iron thorn"on the large area of casting are discussed, and process parameters are presented for the process improvement.
根据铸件大面积铁刺缺陷的技术攻关，论述了造成铸件缺陷的影响因素，制定一套可行的工艺参数，对改进工艺参数有一定参考作用。
A knowledge_based intelligent expert system of defect analysis of navigational aluminum_magnesium casting is developed by using artificial intelligence technology.
采用人工智能技术，建立了一个基于知识的航空铝镁铸件缺陷分析智能专家系统。
Defect analysis in cylinder sleeve with high performance by centrifugal casting in metallic mold is made. Measure to technological improvement and effect obtained are introduced.
对金属型离心铸造高性能气缸套的缺陷进行了分析，介绍了工艺改进措施及取得的效果。
It is considered that the temperature fluctuation of meniscus is a key factor for the surface defect formation of continuous casting billets.
据此认为，连铸弯月面温度波动是导致铸坯表面缺陷产生的一个重要原因。
It was indicated that the linear defect appeared after machining is not crack, it is the appearance of oxide film involved in the casting under the effect of external force.
结果表明，这种加工后出现的线性缺陷并非裂纹，而是卷入铸件的氧化膜受外力作用后在叶片表面的显现。
Centerline shrinkage is the main defect that affects the inner quality of continuous casting slab.
连铸坯内部中心缩松、缩孔是影响铸坯内部质量的主要缺陷之一。
Aiming to the manufacturing of the automobile glass checking tools, the casting technology and the porosity defect of the checking tools were researched in this paper.
本文针对复杂铝合金玻璃检具毛坯的设计和制造，对其铸造工艺、合金成分、缺陷展开了研究。
The numerical simulation of temperature field and shrinkage defect prediction for a valve casting, which was involved in 4 kinds of casting proces.
对采用4种不同铸造工艺方案的阀体铸件凝固过程进行了数值模拟及缺陷预测，获得了与试验相一致的模拟结果。
A variety of protective casting process have been developed for decreasing defect on killed steel bloom sur-face.
为了减少镇静钢钢锭(坯)表面缺陷，出现了各种类型的保护浇铸技术。
Burr defect often appears on the surface of investment casting and it is the main reason causing inferior produces.
熔模铸造中经常出现毛刺缺陷，是造成铸件次品的重要原因。
Abstract: in this paper the gas gap in the expendable pattern casting process was studied and the relation between the gas gap and collapse defect is discussed.
文摘：对消失模铸造铸铁件流动前沿的气隙进行了研究，探讨了气隙与坍塌缺陷的相互关系。
In this paper the gas gap in the expendable pattern casting process was studied and the relation between the gas gap and collapse defect is discussed.
对消失模铸造铸铁件流动前沿的气隙进行了研究，探讨了气隙与坍塌缺陷的相互关系。
The main task of this paper is to develop prediction & analysis system of shrinkage cavity and porosity defect in a casting for foundry engineering application.
本论文以有限元分析软件为开发平台，运用设计参数化和功能模块化技术，初步开发了面向铸造工程应用的铸件缩孔缩松预测及缺陷分析系统。
Using thin, wide ingate and chill can prevent the shrinkage defect, and improve casting yield by 3%.
采用薄、宽的内浇道和冷铁工艺消除了飞轮铸件的缩孔缺陷，铸造工艺出品率提高3%；
Producing continuous casting slab without defect is precondition to hot delivery and charging continuous casting slab.
生产无缺陷的连铸坯是连铸坯热送、热装的前提条件。
Carried on the analysis to the lost wax casting craft sand hole defect creation factor.
对熔模铸造砂眼缺陷产生因素进行了分析。
In this thee, the e-valuation for main casting materials available now is put forward and the defect of usual casting materials available now are analyzed.
对现有的主要铸造粘结剂进行了评价，分析了现有常用铸造粘结剂存在的缺陷。
The common structural defect of large-scale rudder horn casting steel and its cause of flaw were analyzed, the smelting and heat treatment technology of casting steel was pointed out as well.
分析了挂舵臂铸钢件常见的组织缺陷及产生原因，提出了铸钢件的冶炼及热处理工艺。
A general problem in protecting the casting ingots by using expanded complex mould casting mold powder is the surface defect that slag deposition can be evolved easily in ingots head.
使用膨胀型复合模铸保护渣保护浇注钢锭，普遍存在的一个问题是容易使钢锭产生头部积渣这一表面缺陷。
This paper analyzes the cause of civil-situ floor defect from the construction point of view, and put forward control measures to prevent casting slab defects.
文章分析了民用建筑现浇楼板缺陷产生的原因，着重从施工角度上提出了对现浇楼板产生缺陷的防治措施。
The mass defect that often appears in continuous casting process, the relative solution and key technique are also systematically discussed.
并针对连铸过程中易出现的质量缺陷、解决办法和连铸关键技术作了系统讨论。
Advantages: it can destroy the ingot casting, steel grain refinement, and eliminating the defect in microstructure, thus making steel tissue close-grained, with improved mechanical properties.
优点：可以破坏钢锭的铸造组织，细化钢材的晶粒，并消除显微组织的缺陷，从而使钢材组织密实，力学性能得到改善。
According to the optimal results, the flange casting with the ratio of diameter and height of 10 was produced successfully, the shrinkage defect was avoided, the quality of the castings was ensured.
根据优化结果进行生产，成功地生产了直径与高度比为10的法兰铸件，避免了缩孔缺陷，保证了铸件的质量。
It is found that the surface defect like black stripes appeared in certain surface regions of die-casting wheel hub AM60B magnesium alloy after acid pickling in the anti-corrosion treatment.
在对AM 60 B镁合金轮毂压铸件进行表面耐蚀处理时，发现在前处理酸洗后，表面某些区域会产生黑色条纹状缺陷。
Influence of the initial temperature fields and mold hardness on the shrinkage defect of ductile iron casting by EPC process was mainly investigated in this paper.
本文主要讨论了初始温度场和铸型硬度对消失模铸造球墨铸铁件收缩缺陷的影响。
The optical inspection technology of surface defect, as for defects of hot continuous casting slabs, has advantages of high speed, contactless and high resolution.
光学缺陷检测技术，对热连铸坯表面缺陷而言，具有高速、非接触、高分辨率等优点。
应用推荐