It is gived the properties of CO_2-sodium silicate sand by adding WK-breakdown agent.
本文研究WK型溃散剂在CO_2法水玻璃砂中的各种性能。
2
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.
使用较高模数的水玻璃混制的型砂具有残留强度低、吹CO2时间短等优点，并有好的抗吸湿性和表面稳定性。
3
The properties of sodium silicate-bonded sand have been investigated by experiments and the results of application of liquid accelerator in Sodium Silicate-bonded Sand have been studied.