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- Processing of silica and siliceous sand 硅石和硅砂选矿
- The normal temperature strength and collapsibility of sodium silicate sand are always two contradictory property indices in this kind of mounding sand. 摘要对酯硬化水玻璃砂的性能特徵进行了分析,就提高酯硬化水玻璃砂常温强度及溃散性的措施与方法,进行了试验研究和探讨。
- According to the water solubility characteristic of the residual binder,the "freezing-mechanical"reclamation of used sodium silicate sand was studied. 根据水玻璃旧砂残留粘结剂的水溶性特点,进行了水玻璃旧砂"冰冻-机械"再生试验研究。
- In general, the higher the atmospheric temperature strength of the sodium silicate sand is, the more deteriorative its collapsibility becomes. 水玻璃砂的常温强度越高,其溃散性通常越差。
- Large, medium and small cordless medium frequency furnace saries, ZWB bottom pouring furnace, VRH silicate sand vacuum hardeing process and production line. Cast steel joint. 大中小型无心变频感应电炉,ZWB系列塞杆底注式保温电炉,VRH水玻璃砂真空硬化工艺及生产线,树脂砂设备及生产线。铸钢节点等。
- Large, medium and small cordless medium frequency furnace, saries GWB bottom pouring furnace, VRH silicate sand vacuum hardeing process and productiom line, cast steel joint. 大中小型无心变频感应电炉,GWB系列塞杆底洼式保温电炉、VRH水玻璃砂真空硬化工艺及生产线、树脂砂设备及生产线,精密铸造设备及工艺、大屏幕炉前快速测温仪,铸钢节点等。
- Large, medium and small cordless medium furnace saries, ZWB bottom pouring furnace, VRH silicate sand vacuum hardening process and production line. Cast steel joint. 大中小型无心变频感应电炉,ZWB系列塞杆底注式保温电炉,VRH水玻璃砂真空硬化工艺及生产线,树脂砂设备及生产线。
- Ouch! The sand is so hot! I can burn my feet. 哎哟!沙子这么烫!会烫伤脚的。
- The sodium silicate sand prepared with higher modulus sodium silicate has advantages of low residual strength, short CO2 blowing time, high moisture absorption ability and surface stability. 摘要使用较高模数的水玻璃混制的型砂具有残留强度低、吹CO2间短等优点,并有好的抗吸湿性和表而稳定性。
- The sand blew into the food and made it gritty. 砂吹进食物中,里边尽是砂子。
- The children were playing in the sand pit. 孩子们在沙坑中玩耍。
- The tractor has make deep furrow in the loose sand. 曳引机在松软的沙土上留下了深深的车辙。
- The sun blazed down on the sand. 阳光强烈地晒在沙滩上。
- His company was built on the sand. 他的公司根基不稳固。
- The influence of adding the HS powder and PVA sol together or respectivly on the original and retained strewth, bench life and moisture resistance of the CO_2 sodium silicate sand was studied. 研究了HS粉与PVA单独及复合使用后对水玻璃砂初始强度、残留强度,可使用时间以及抗吸湿性的影响。
- It is always the goal pursued by foundrymen to obtain a sort of sodium silicate sand having excellent collapsibility while ensuring its sufficient atmospheric temperature strength. 在保证水玻璃砂具有足够的常温强度的条件下,获得好的溃散性一直是铸造工作者追求的目标。
- Since silicate sand has the advantages of low cost, non-poison, no odor, high refractoriness and low pollution, it will be one of the main sand casting processes used in the 21st century. 由于水玻璃砂价格低廉、无毒无味、耐火度高、污染小等优点,它必将成为21世纪铸造生产中造型(芯)应用的主要工艺之一。
- The river has scour out a passage in the sand. 这条河在沙土中冲出一条水道。