摘要:
A method for reducing shrinkage variability of aluminum titanate honeycombs includes preparing an aluminum titanate-forming batch material that includes least one alkaline earth carbonate having a particle size distribution. The particle size distribution of the at least one alkaline earth carbonate is selected based on the predicted shrinkage during sintering of the aluminum titanate honeycombs.
摘要:
A method for reducing shrinkage variability of aluminum titanate honeycombs includes preparing an aluminum titanate-forming batch material that includes least one alkaline earth carbonate having a particle size distribution. The particle size distribution of the at least one alkaline earth carbonate is selected based on the predicted shrinkage during sintering of the aluminum titanate honeycombs.
摘要:
The disclosure relates to ceramic-body-forming batch materials comprising at least one pore former and inorganic batch components comprising at least one silica source having a specified particle size distribution, methods of making ceramic bodies using the same, and ceramic bodies made in accordance with said methods. The disclosure additionally relates to methods for reducing pore size variability in ceramic bodies and/or reducing process variability in making ceramic bodies.
摘要:
A method for reducing shrinkage variability of ceramic honeycombs formed from batch mixtures including inorganic materials and a pore former. X is a cumulative amount of pore former particles having a diameter less than 37 μm. There is a maximum value of X (Xmax) and a minimum value of X (Xmin) during a production period, and ΔX=Xmax−Xmin. The method fixes an amount of pore former fines such that X ranges from 25%-71% by volume, and ΔX is ≦23% throughout the production period.
摘要翻译:一种减少由包括无机材料和成孔剂在内的间歇混合物形成的陶瓷蜂窝体的收缩变异性的方法。 X是直径小于37μm的成孔剂颗粒的累积量。 在生产期间存在最大值X(Xmax)和最小值X(Xmin),并且&Dgr; X = Xmax-Xmin。 该方法固定了一定量的造孔剂,使得X在整个生产周期内为25%-71%体积,&Dgr; X为&NlE; 23%。
摘要:
The disclosure relates to aluminum titanate-forming batch materials comprising inorganic batch components comprising at least one alkaline earth carbonate having a specified particle size distribution, methods of making ceramic bodies using the same, and ceramic bodies made in accordance with said methods.
摘要:
The disclosure relates to methods for making aluminum titanate-containing ceramic bodies, and methods for predicting shrinkage and minimizing shrinkage variability of said bodies from target size.
摘要:
The disclosure relates to aluminum titanate-forming batch materials comprising inorganic batch components comprising at least one alkaline earth carbonate having a specified particle size distribution, methods of making ceramic bodies using the same, and ceramic bodies made in accordance with said methods.
摘要:
The disclosure relates to ceramic-body-forming batch materials comprising at least one pore former and inorganic batch components comprising at least one silica source having a specified particle size distribution, methods of making ceramic bodies using the same, and ceramic bodies made in accordance with said methods. The disclosure additionally relates to methods for reducing pore size variability in ceramic bodies and/or reducing process variability in making ceramic bodies.
摘要:
A method for green-to-fired shrinkage control in honeycomb ceramic article manufacture, including: measuring, prior to mixing, the particle size distribution properties of at least one fine particle size graphite pore former ingredient of a provided ceramic source batch mixture; calculating the expected shrinkage of the green body to the fired ceramic article based on the measured particle size distribution properties of the at least one fine particle graphite pore former; making the honeycomb ceramic article; measuring the shrinkage of the resulting fired honeycomb ceramic article; and adjusting the ceramic source batch mixture in a subsequent batch material schedule, as defined herein, wherein the adjusted ceramic source batch mixture provides finished honeycomb ceramic articles having controlled green-to-fired shrinkage.
摘要:
Methods for making extruded ceramic products meeting set dimensional specifications comprise subjecting a small firing sample taken from a first unfired product preform to a rapid firing treatment to determine a value for firing shrinkage or growth, and then adjusting the dimensions of succeeding unfired preforms based on that value, e.g., by adjusting wet extruded product dimensions, so that the succeeding preforms will meet the set dimensional specifications.