QD-3118 Frequency Conversion Speed Regulating Wally Pulp Freeness Tester (Valley Freeness Tester, Small Freeness Tester) is an international standard equipment for papermaking laboratories, which is the equipment required for the study of pulp and papermaking process, the machine cuts, crushes, kneades, splits, moistens and refines various fiber slurries through the mechanical force generated by the flying knife roller and the bed knife, and at the same time produces the displacement and deformation of the cell wall, the rupture of the primary wall and the outer layer of the wall. According to the pressure on the bed knife and the beating time, you can get the change of pulp with different degrees of pulping, Wally Freeness Tester is widely used in the pulping test of various plant fibers, synthetic fibers, carbon fibers, glass fibers, and is an indispensable papermaking experimental equipment for papermaking production testing, quality control, process formulation, teaching and scientific research experiments.
GB/T 24325-2009 Pulp -- Laboratory pulping -- Valley Freeness Tester