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半硬塑挤出瓦一般利用瓦坯自重摩擦力来切割.由于瓦坯成型水分低,切割不能用钢丝而要用刀片,这样切割阻力增大,瓦坯会出现以下几点缺陷:a、切割中容易产生翘曲;b、挤出速度快、慢影响瓦坯长短.挤出快、惯性大.阻力小、瓦坯短;挤出慢、惯性小,切割阻力产生的翘曲使瓦坯暂时与托辊脱离.瓦坯增长;C、瓦坯正面各部位不在同1个水平面.没有接触托辊的部位切割中易损伤等.
Semi-hard plastic extruded tiles are generally used to cut the weight of tile blanks. Due to the low moisture content of the blanks, the blades can not be cut with steel wire, so that the cutting resistance increases, and the blanks will have the following defects: a. It is prone to warp; b, extrusion speed is fast, slow impact on billet length. Extrusion is quick, inertia is high, resistance is small, and billet is short; extrusion is slow, inertia is small, warpage caused by cutting resistance makes the billet temporary Detach from the idler. The billet grows; C. The front part of the billet is not in the same horizontal plane. The parts that are not in contact with the idler are easily damaged during cutting.