The corundum (Tao Ci) cause unreasonable:
1, corundum (Tao Ci): high density sintered plate caused no pores, is not conducive to the smooth latex skim parts.
2, corundum (Tao Ci) sintered plate: dense non porous, with heat storage performance, high heat slowly, so that at the bottom of the parts not timely cooling or heat release gravity; at the bottom of the parts than the top part heat slowly, not with the parts at the same time consistent heat, make parts cannot be smoothly carried out effectively shrink, cause parts size first deformation phenomenon.
3, corundum (Tao Ci) sintered plate: the surface is smooth, contact with the bottom parts with larger area, increased the thermal resistance of parts.
4, corundum (Tao Ci) sintered plate: high thermal expansion coefficient, unable to resist the thermal shock conditionsof thermal shock, corundum plate itself is easy to appear the deformation phenomenon, cause parts with the same direction of corundum ceramic plate deformation.
5, corundum (Tao Ci) sintered plate: sodium ion active impurities are high, high temperature environment and parts;carbon, chromium, nickel and other produce chemical reaction, adhesion to parts parts; thermal expansion during high temperature sintering shrinkage caused by resistance, to make parts can not guarantee the size of form and position accuracy is good.
