この原料の乾燥感度係数

原料の超微粒子の割合が高い場合, その可塑性指数は高くなります. 一般的に, この原料の乾燥感受性係数も比較的高いです, 乾燥時に内部の水分が排出されにくい, which can easily lead to network cracks.
外面が縮んでしまった, but the internal moisture has not been discharged, so the internal cannot shrink, only the surface shrinks, 亀裂のネットワークを引き起こす. In addition to increasing the temperature of the green body entering the drying chamber, efforts should also be made to increase the micro porosity of the green body by adding poor materials to the raw materials. 石炭脈石の追加, 頁岩, slag and other aggregates is an economical choice. In essence, the mineral composition of these highly sensitive raw materials determines their drying performance. 例えば, モンモリロナイトの含有量が多すぎる場合, 頁岩でもレンガを作るために単独で使用することはできません.
Some regions have high levels of montmorillonite in their raw materials, such as the red clay soil in Northeast China, 内モンゴル, 寧夏回族自治区, 新疆, 北京, および黄土高原地域. For materials with high plasticity, 押出機の真空度は高すぎてはいけません. High vacuum degree can increase the density of the billet, ただし密度が高すぎると, この原材料から作られたビレットの密度が高くなりすぎる可能性があります, affecting the discharge of moisture inside the billet, resulting in network cracks, and even bursting in the preheating zone during firing.