In order to obtain the expected sand cooling and humidifying effect, requiring sand in the boiling bed to flow in uniform.
为使型砂获得预期的冷却和增湿效果，要求型砂在沸腾床上均匀的流动。
The invention relates to a molding sand cooling and dedusting device for foundry, in particular to a double-plastid vibration molding sand boiling and cooling bed.
本发明涉及铸造用的型砂冷却除尘装置，特别是双质体振动型砂沸腾冷却床。
Located on the Big Island of Hawaii, the beach gets its rare color from eroded black sand particles that were created by volcanic lava flowing into the ocean and then cooling.
该海滩位于夏威夷大岛，其罕见的颜色，由火山熔岩流进海里冷却形成的黑色沙粒腐蚀而成。
Simulating different solidification cooling rate with step-metal mould and sand mould, the effect of solidification cooling rate on microstructure and properties of high boron steel were studied.
利用阶梯型腔金属模和砂型模拟不同的冷却速度，研究了冷却速度对高硼钢凝固组织和性能的影响。
The attenuation of temperature wave in humid sand layer on an evaporation cooling roof differs from that in dry sand layer in essence.
有含湿砂层存在的被动蒸发冷却层屋面的温度波衰减，在本质上不同于干燥状态情况。
However, the foundry plant of tsinghua university lacks old sand with high temperature and can not carry out test of cooling control.
但因清华大学铸造厂缺乏温度较高的旧砂，以致无法进行降温控制效果的试验。
The cooling rate is faster in chromite sand mold, but also causes more porosity in castings.
铬砂制作的砂模可让铸件有较快的冷却速率，但也产生较多的微孔隙。
The cast ingots prepared using sand mould and metal mould were analyzed to investigate the effect of cooling rates on morphologies and characters of M2C eutectic carbides in M2 high speed steel.
采用砂型和金属型铸造制备m 2高速钢铸锭，研究了冷却速度变化对高速钢m 2c共晶碳化物形态及性质的影响，探讨了M2C共晶碳化物形态变化的机理。
High voltage blasting lets the used sand to be under boiling state, therefore best cooling effect can be reached.
高压鼓风使旧砂处于沸腾状态，达到最佳冷却效果。
Then, the protein coated sand particles are dried and blown into a pattern mold to form a molded article without active cooling of the coated sand particles.
然后在没有有效冷却涂覆砂粒的情况下，干燥涂覆蛋白质的砂粒且吹入型模以形成一种模制品。
The utility model relates to a fast-cooling device for resin bonded sand molding casting, which also can be applied to the cooling of other casting molding methods.
本实用新型涉及树脂砂造型铸件快速冷却装置，也适用于其它铸件造型方法的冷却。
The defects of sand-slag and gas-hole are absent in the water-cooling-sprayer whose surface is clean and qualified rate is more than 90%.
结果表明：铸件表面光洁，无砂眼、气孔等缺陷，铸件合格率高于90%；
The defects of sand-slag and gas-hole are absent in the water-cooling-sprayer whose surface is clean and qualified rate is more than 90%.
结果表明：铸件表面光洁，无砂眼、气孔等缺陷，铸件合格率高于90%；
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