Tilt casting QX: In this method, the casting cavity is located towards the lower back face of a block; the feasible limits of cavity can be evaluated and indicated by the volume-weight testing of blocks in-situ according to the technical specifications. Meanwhile, blocks which height less than 900mm are not suitable to be manufactured by this process.
General casting PT: Due to volume shrinkage from liquid-solid transform and rapid solidification of a casting ,normal cast blocks have their cavity located under the filling scar. The feasible limits of cavity can be evaluated and indicated by the volume-weight testing of blocks in-situ according to the technical specifications.
Reinforced casting ZWS; In this developed process, reduced cavity is located towards the bottom of a casting; a little part of the cavity will be remained at the end of the electro fused cast AZS after the header cutting. Block evaluation in-situ begins from the determination for the feasible size and deepness of cavity remainder at first and then to the volume-weight testing of blocks according to the technical specifications.
Void-free casting WS: In the process, additional liquid from the header fills sufficiently into a casting; the header is then cut off leaving a block free of casting cavities. Block evaluation in-situ includes the acceptance or rejection for somewhat trace of cavity remainder which perhaps appeared and the volume-weight testing of blocks according to technical specifications.
NR-33 is the Alumina-Zirconia-Silica fused cast material with >32% ZrO2 made by oxidizing process. Its microstructure makes a feature of zirconia , corundum and eutectoid crystals assembly, certain amount of the glassy matrix, resulting in unique properties. The good cast-ability of this material enables the products of many complex and varied shapes?
