Method of manufacturing a floor or wall panel

A method of manufacturing a floor or wall panel comprising a foamed polymer core， wherein a foamable polymer powder is at least partially frothed between two conveyor belts of a double belt press in the forming zone of a steel belt press， the sum of the thicknesses of the two conveyor belts and the total thickness of the layers at the entrance to the steel strapping press is less than or equal to the opening of the steel strapping press at the entrance to the steel strapping press， and wherein the sum (T4) of the thicknesses of the two conveyor belts and the total thickness of the substrate at the exit of the steel strapping press - is equal to the opening of the steel strapping press at the exit of the steel strapping press and - is greater than the sum of the thicknesses of the two conveyor belts and the total thickness of the layers at the entrance to the steel strapping press.

一种地板或墙板的制造方法，该方法包含发泡聚合物芯体（foamed polymer core）。其中，可发泡聚合物粉末（foamable polymer powder）在钢带压机（steel strapping press）成型区内的双带压机（double belt press）的两条传送带之间至少完成部分发泡；进入该钢带压机时，两条传送带的厚度之和与各层物料总厚度之和，小于或等于该钢带压机的入口开口尺寸；而在离开该钢带压机时，两条传送带的厚度之和与基材总厚度之和（记为T4），既等于该钢带压机的出口开口尺寸，同时又大于进入该钢带压机时两条传送带的厚度与各层物料总厚度之和。