该工艺可用于各类烘焙硬化和气体硬化型芯的硬化。
The technology can be applied to the multifarious moulds and cores which can be hardened by heat enginery.
该粘结剂采用PVA17-99为主要原料，通过改性等实验方法，并利用正交试验优化改性参数，制备了一种常温下呈液态的粘结剂，使用此种粘结剂的型砂可以通过吹入CO2气体硬化。
The main material of the binder was PVA17-99, the liquid binder was produced by means of modifying experiment and orthogonal test . The binder could be hardened by blowing CO2.
羊毛和毡绝缘表面的硬化增强了产品对高速气体侵蚀性的抵抗能力，同时也降低了渗气性。
Hardening of the surfaces of blanket and felt insulation improves the resistance to erosion by high-velocity gases and reduces the permeability of gases.
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