The green sand mold with even density and proof of the impact of liquid metal is one of the critical factors in the production of quality casting.
紧实度均匀、能抵抗金属液体冲击的合格砂型是保证铸件质量的关键因素之一。
So it is significant for improving casting quality and social productivity of labor to study fast testing system of green sand composition and performance parameter.
因此，研究湿型砂组分及性能参数快速测试系统对于提高铸件质量和劳动生产率具有非常重要的现实意义。
The factors influencing the rigidity of green sand mold during pouring were analyzed.
对影响湿砂型浇注时的刚度的各种因素进行了分析。
It is shown that properties of green sand vary with charging sequence and mulling time.
结果表明，型砂各性能均随加料顺序和混砂时间的不同而变化。
The system can test active clay content and moisture of green sand fast and control its composition directly.
该系统能快速测定型砂的有效粘土含量和含水量，实现型砂质量的直接控制。
A displacement sensor based on solenoid principle is used to measure green sand compactibility and mould compaction.
基于螺线管原理的位移探测器用于完成型砂紧实率及铸型紧实度的快速检测。
A comparative test between green sand mold casting method and resin sand-coated iron mold casting method was conducted.
介绍了球铁刹车盘的不同铸造工艺，对粘土砂湿型铸造工艺和覆砂铁型铸造工艺进行了试验对比。
The experience of cast Mg alloy in graphite green sand mold was summarized and its casting characteristics were analyzed.
总结了采用石墨砂湿型铸造镁合金的经验，分析了镁合金铸造的特点。
Critical value of plastic deformation of green sand has been tested by molding sand multi-tester using computer and sensors.
用计算机技术和传感技术组成系统构成型砂多项性能测试仪，测定湿型粘土砂塑性变形临界值。
As air compacting sand has a lot of remarkable advantages, it has become the new generation of the technology of compacting green sand.
由于气流实砂具有一系列显著优点，它已成为新一代的湿砂紧实工艺。
The gas evolution test method has the advantage that the effective coal dust content in green sand can be determined rapidly and accurately.
发气量试验方法的优点是能够迅速和准确地确定 型砂中有效煤粉的具体含量。
It is proved by experiments that DPSEM together with ANNsmakes the fast on line prediction of active clay content and moisture of green sand feasible.
实验结果表明，双电源二次激励法与人工神经网络相结合，可以实现型砂有效粘土含量和含水量的快速在线预测。
Compared with the original bentonite modification, lithium-base bentonite can improve the properties of green sand and the optimum added content is 8 %.
与原膨润土相比，锂化膨润土的加入改善了湿型砂的性能，最佳加入量为8%。
Properties of the green sand and the surface quality of the casting may be decreased due to the resin sand of cold box cores entering the green sand system.
冷芯盒树脂砂进入湿型砂系统会使湿型砂性能和铸件表面质量下降。
Based on "Double Powers Exciting Method" and ANN technique, the moisture and the available clay content of green sand can be calculated quickly by the system.
本文基于“双电源二次激励法”的基本原理，并利用人工神经网络技术求得型砂含水量及有效粘土含量。
The active and dead bentonite contents in green sand system have great effect on the sand properties, but it is very difficult to measure them in actual shop.
型砂系统中的有效膨润土和失效膨润土含量对其性能有很大影响，而生产中对这两个参数的检测比较困难。
It was pointed out that the strength of molding sand and compactness of sand mold is the key factors influencing the rigidity of green sand mold under normal temperature.
指出型砂强度和砂型的紧实程度是常温下影响湿砂型刚度的主要因素。
In order to test the composition of green sand on-line and control its quality, an optimizing direct-control system based on a new method has been developed by the authors.
为了实现型砂质量的快速在线检测和组分控制，本文作者研制了一种基于新方法的型砂质量直接优化控制系统。
The dynamic stress inside green sand during experimental compaction by air impact moulding can be achieved using a method of placing aluminium plate at the top of green sand.
采用气冲造型机并在型砂顶部覆盖铝板的方法，获得了气力冲击造型试验紧实过程中型砂内部的动态应力。
The growing thermal load of green sand, the quicker recirculation times and the increased requirements on the quality of molding material make new demands on the molding sand preparation.
潮模砂日益增长的热负荷，更快的循环时间以及对造型材料质量要求的提高，对型砂制备提出了更高的要求。
This research mainly explores the production of steel castings with air flush molding green sand and the improvement of its character from the molding sand recipe and mold sand system control.
本研究主要探讨了用气冲造型湿型砂来生产铁路钩缓铸钢件，从型砂的配方和型砂系统的控制等几个方面来优化其性能。
The mold hardness under different vacuum degree was tested. The results showed that the mold hardness of EPC process was higher than that of green sand mold and was more uniformly distributed.
不同真空度下消失模铸型硬度的测试结果表明，消失模铸型的硬度高于普通湿型砂铸型，并且硬度分布更均匀。
Green sand beach lies on the slopes of the world's largest active volcano mauna loa.
绿沙海滩就位于全球最大的活火山冒纳罗亚的斜坡上。
The high density green-sand molding has a high requirement for materials quality.
高密度湿型砂对原材料的质量要求很高。
The high density green-sand molding has a high requirement for materials quality.
高密度湿型砂对原材料的质量要求很高。
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