砂型铸件上可能发现下列哪种缺陷？
Which of the following is a discontinuity which might be found in sand castings?
采用呋喃树脂砂型铸造。
对异形铸件，还可用砂型铸造或金属型铸造。
We can also adopt sand shell moulding or metal mold casting as for allotype castings.
在粘土砂型铸造生产过程中经常出现夹砂类缺陷。
In casting iron production casting iron scab flaw is often found.
介绍一种在雕塑泥稿外直接制作铸造砂型的方法。
One method to make casting sand mold directly from the bozzetto (mud draft) of the sculpture is introduced.
对影响湿砂型浇注时的刚度的各种因素进行了分析。
The factors influencing the rigidity of green sand mold during pouring were analyzed.
得出的结轮是提高压头压下速度能提高砂型表面硬度。
Thus we got a conclusion that increasing the velocity of pressing can increasing the hardness of sand mould surface.
探讨了石墨粉加入量对硼砂型固体渗硼剂结块的影响。
The influence of amount of graphite powder addition on the agglomeration of pack boriding agent with borax has been discussed.
文摘：介绍一种在雕塑泥稿外直接制作铸造砂型的方法。
Abstract: One method to make casting sand mold directly from the bozzetto (mud-draft) of the sculpture is introduced.
快速砂型铸造用模具材料，是实现快速砂型铸造的重要因素。
Mold material of rapid sand casting is one of important factor for realizing rapid sand casting.
本文研究了一种适用于铸造的铸造砂型用粘结剂-磷酸盐无机树脂。
A new modified phosphate inorganic binder, which can be applied in foundry industry, is studied in this paper.
本文研究了在普通砂型条件下，低频振动使铁碳合金凝固组织的影响。
Effect of low freqency vibration on solidified behavior of ferro-carbon alloy was inspected in sand-mold Casting.
热型连铸L401线材耐蚀性优于砂型铸造线材，耐蚀性提高26%。
The corrosion resistance of L401 alloys wire by OCC is higher 26% in comparison with that by sand mould.
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。
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.
当湿型不能满足要求时再考虑使用粘土砂表干砂型、干砂型或其它砂型。
When wet type can not meet the requirement to consider using clay sand table dry sand, dry sand mold or other.
浇注温度和砂型初始温度越高，热节处粘塑性应变越大，而热应力越小。
The higher the pouring temperature and initial mold temperature are, the larger the plastic strain while the smaller the thermal stress is.
配重铁一般按造型方法来分类，习惯上分为普通砂型配重铁和特种配重铁。
The counterweight iron classifies generally according to the modelling method, in the custom divides into the ordinary sand mold counterweight iron and the special counterweight iron.
在砂型中浇注时，凝固期间铸件外表面温度接近的中心温度，与形状无关。
The outer surface temperature of the sand casting approximates its center temperature in the solidification period and it is independent of the casting shape.
本节讨论砂型铸造工艺，包括型模、浇注口、浇道、设计考虑因素及铸造余量。
The processes of sand casting are discussed in this section, including patterns, sprues and runners, design considerations, and casting allowance.
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。
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.
铸钢材质升级为低合金钢后，传统的砂型铸造工艺在生产中暴露出了一系列问题。
When low alloy steel replaced carbon steel castings, a series of questions were uncovered in traditional sand casting process.
以该法的砂型性能良好与砂型硬度高度均匀以及噪声测定水平，来显示此法的特色。
Features of this process have been demonstrated from the good characteristics and excellently even hardness of the sand mold, and low noise level detected.
试验结果表明，砂型铸造铜套性能较差，而真空吸铸铜套性能较好，可以替代卷制铜套。
Result of testing shows that proPerty of sand casting bushing is unsatisfactory and that of vacuum casting bushing is better, which can be used to replace the pressed bushing.
本机主要用于树脂砂造型时型砂的振实，也可用于粘土砂造型或自硬砂造型实砂型的振。
It for consolidating molding sand, such as resin bonded sand, as well as tamping sand, such as clay sand or self hardening sand.
石英砂型芯是采用熔模精密铸造的常用材料，通过特定的制芯工艺制成的一种铸造用型芯。
Quartz sand core, which is made in accordance with a special core making technique of casting, is one of common materials used in Investment casting.
本文从理论和实践的两个角度，论述了D型湿砂型表面硬度计的设计思想，定型设计方案。
The ideal of the design and finalized programme of the type-D green mold hardness tester are expounded by the theory and the experiments.
按铸造方法不同，分为连续铸铁管和离心铸铁管，其中离心铸铁管又分为砂型和金属型两种。
According to different casting methods, divided into continuous cast iron pipe and the centrifugal cast iron pipe, wherein the centrifugal cast iron pipe is divided into two types of sand and metal.
模拟结果表明，金属型铸造晶粒尺寸较小，砂型铸造的较大。模拟结果与金相观察结果相符。
Simulation results show that grain size is smaller for metal mold casting, but larger for sand mold casting, which is in good agreement with the experimental results.
介绍了消失模铸造衬铁的工艺，通过消失模铸造与湿砂型铸造的比较，得出消失模铸造的优点。
This paper introduces the technique of EPC casting iron linner. Made a comparison between EPC casting and green sand casting, the advantage of EPC casting is obtained.
介绍了消失模铸造衬铁的工艺，通过消失模铸造与湿砂型铸造的比较，得出消失模铸造的优点。
This paper introduces the technique of EPC casting iron linner. Made a comparison between EPC casting and green sand casting, the advantage of EPC casting is obtained.
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