Study on Poly Ethylene Oxide Modified Sodium Silicate Binder
聚氧化乙烯改性水玻璃粘结剂的研究
The sodium silicate binder possess many advantages including being odor free, non-toxic and environmental friendly, hence it is widely applied in foundry molding sand, chemistry painting, papermaking and many other industries.
水玻璃粘结剂具有无毒无味、环境友好等优点，被广泛应用于铸造型砂、化工涂料、造纸等许多行业。
The fundamental ingredients of PEO modified sodium silicate binder are determined, and the bonding strength in room temperature and retained strength in high temperature of ester cured sand and CO2 hardening sand are tested.
确定了聚氧化乙烯改性水玻璃粘结剂的基本组分，测试了有机酯自硬和CO2气硬型砂的常温粘结强度和高温残留强度。
With the same binder amount, the sand strength is nearly 1.5 times that of general sodium silicate sand, and the retained strength from 800 ℃ to 1000 ℃ is less than 0.5 MPa.
粘结剂加入量相同时，型砂强度是普通水玻璃砂的1.5倍，800～1000℃时，型砂残留强度≤0.5MPa。
This paper introduces the cause of the easy aging of sodium silicate binder and the harm of its aging to the sand nature, and puts forward the methods and effects of sodium silicate binder modifying.
介绍水玻璃粘结剂容易“老化”的原因和老化现象对水玻璃砂性能的危害，提出水玻璃粘结剂改性的方法与应用效果。
Application of Sodium Silicate Binder with Na_2HPO_4 Modifier to Investment Casting
磷酸氢二钠改性水玻璃在熔模铸造中的应用
Study on the binder bridge morphology of sodium silicate bonded sands by scanning electron microscopy
水玻璃砂粘结桥形貌的扫描电镜研究
The modified sodium-silicate binder could have the functions of improve the normal temperature strength and high temperature collapsibility of the sodium-silicate sand, and also have the effect of ameliorating the properties of its dry reclaimed sand.
水玻璃改性技术在提高水玻璃砂强度，改善其溃散性的同时，也对水玻璃旧砂经干法再生后循环使用的砂性能产生了影响。
Experimental results showed that the addition amount of binder was reduced to 2.5%~3.0% by the process of organic ester cured new modified water glass sand and the collapsibility of new modified sodium silicate sand was improved very well.
生产实际表明，采用新型改性水玻璃粘结剂的酯硬化工艺，可使水玻璃的加入量降为2.5%～3.0%，水玻璃砂的溃散性显著改善。
Measurement of the Na_2O Content and Ratio of the Remain Binder Film Shedded by Reclaimer in Sodium Silicate Used Sand Reclamation
水玻璃旧砂再生中Na2O含量的测定与再生机的脱膜率