Form and dimension may also be achieved by a number of alternative processes such as hot or cold extrusion, sand casting, die casting, and precision casting.

形式和尺寸也可以通过其它一些可选工艺来达到，比如热挤出或冷挤出加工，沙模铸造，拉模铸造，或精密铸造。

The processes of sand casting are discussed in this section, including patterns, sprues and runners, design considerations, and casting allowance.

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。

Green sand casting casting clay weight from a few kilograms until decades kilograms, machine tool lathe bed and clay dry type of casting production can be weighed dozens of tons.

粘土湿型砂铸造的铸件重量可从几公斤直到几十公斤，机床床身而粘土干型生产的铸件可重达几十吨。

Effect of low freqency vibration on solidified behavior of ferro-carbon alloy was inspected in sand-mold Casting.

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。

During this month, I learned lathe work, miller operating, benchwork, digital control processing, sand mold casting, heat treatment, and welding.

在一个月中，我们学习了车工，铣工，钳工，数控加工，沙型铸造、热处理、焊接等等。

Prime materials for the plastic injection moulds and general pressing moulds, also suitable for making diverse sand and metallic casting components for the auto and other industrial sector purposes.

是塑料模具及一般简易冲压模具的首选材料，也适用于汽车及其它工业部门用的各种砂型及金属型铸件。

The objective of sand reclamation is make good casting, not to reclaim sand to a given level of cleanliness.

砂再生的目的是用再生砂生产出好铸件，而不是将砂再生到指定的干净程度。

When low alloy steel replaced carbon steel castings, a series of questions were uncovered in traditional sand casting process.

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。

The fine surface quality and dimensional accuracy cast hot work die was obtained by special sand V method casting technique.

采用特种砂v法铸造工艺获得了良好表面精度和尺寸精度的铸造模具。

Although sand casting production may decrease with new casting technologies emerging, it is asserted that the vast majority of castings would have to be produced by sand casting technology.

随着新的铸造工艺的不断出现，未来砂型铸件的产量可能会有所减少，但是专家断言，绝大部分铸件依然要靠砂型工艺进行生产。

Casting sand casting, die - casting, investment casting.

铸造沙铸，压铸，融模铸造。

Mold material of rapid sand casting is one of important factor for realizing rapid sand casting.

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。

In the mix of sand or sand core casting equipment, sand mixing machine generally has the following functions: the old sand, new sand, sand bonding agent and auxiliary materials mixed evenly.

用在混制型砂或芯砂的铸造设备，混砂机一般具有下列功能：将旧砂﹑新砂﹑型砂黏结剂和辅料混合均匀。

Sand bottom die-casting padlock series, sentinel production "earth" brand iron padlock series, breed diversity, the specification is complete.

砂底压铸挂锁系列，定点生产“地球”牌铁挂锁系列，品种多样，规格齐全。

Sand casting is capable of making fairly complex shapes using relatively inexpensive wood patterns.

砂模铸造使用相对便宜的木质模型生产出很多形状复杂的模型。

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.

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。

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.

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。

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。

Used for engraving glass, cleaning residue on the sand casting, controlled fermentation, power semiconductor wafer polishing and cleaning corrosion (with HNO3 mixed acid).

用于雕刻玻璃、清洗铸件上的残砂、控制发酵、电抛光和清洗腐蚀半导体硅片(与HNO3的混酸)。

Because the mold is formed around a one-piece pattern (which does not have to be pulled out from the mold as in a traditional sand casting process), very intricate parts and undercuts can be made.

由于这种铸型是环绕整块型模形成的(无需像传统的砂型铸造工艺那样拔模)，能制作十分复杂的零件和浮雕。

Add a of starch sand sand can improve the anti drying ability, reduce sand casting defects.

型砂中加入a淀粉可以提高型砂的抗风干能力，减少铸件冲砂缺陷。

Suitable for metallic and sand casting, also for cold chamber casting;

适用于金属型、砂型铸造，也可冷室压铸。

Compared with large stainless steel valve body in sand casting, it was difficult to control solidification process in investment casting, which results in some defects in the valve body.

特大型不锈钢阀体熔模精密铸造与砂型铸造比较，最大的问题是铸件的凝固控制。

The common defects of the housing casting include cracks, sand drop, slag inclusion, shrinkage porosity and rough grain, etc.

机架的常见缺陷有裂纹、掉砂、夹渣、缩孔缩松和晶粒粗大等。

My factory technical force is abundant, specialized production each kind of casting: Low pressure casting, sand casting.

我厂技术力量雄厚，专业生产各种铸造：低压铸造、型铸造。

Practice indicates that this production process can improve the quality and performance of products and working environment, and it can substitute for conventional sand casting process.

生产实践表明，这种生产工艺对提高产品性能和质量、改善生产环境等起到了一定作用，可以取代传统的砂型铸造。

The use of vibration and impact to the mold casting equipment in separation of molding sand and casting.

利用振动和冲击使铸型中的型砂和铸件分离的铸造设备。

The outer surface temperature of the sand casting approximates its center temperature in the solidification period and it is independent of the casting shape.

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。

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。

With prolonged production period, the problems like failure of sand control and casting leap were arisen.

但随着开采时间的延长，陆续出现了防砂失效、套管错断等问题。