In the production process of rubber cables, a variety of quality problems often occur, the following is a preliminary summary and analysis of such quality problems: First, the appearance of defects The problem is mainly reflected in the following aspects: â‘ surface is not smooth; surface clinker particles (early vulcanized rubber particles) or impurities; wire and cable surface scratches, scratches; surface collapse; surface twist pattern. Analysis: 1, die sets too long or too short line, the die is not smooth and the aperture is too large; nose, die or fuselage temperature is low; rubber plastic small may lead to rubber cable surface is not smooth. 2, the supply of rubber is not clean, with impurities; plastic scorch time is too short; squeeze rubber body, nose or die temperature is too high; head rubber flow is not smooth, rubber dead ends; screw is not smooth , Viscose, etc. may cause clinker particles (early vulcanized rubber particles) or impurities on the rubberized cable surface. 3, the mold is not smooth, chamfered; impurity or clogged particles to block the mold; pipe vulcanization tube scratches; vulcanized tube outlet seal rubber gasket aperture is too small and so may lead to rubber cable surface scratches Scratch. 4, the mold sleeve aperture is too large; conductive wire outer layer between the strands, filaments between the gap is too large, non-uniform core diameter; rubber plastic small, poor adhesion; rubber impurities; mold distance is small, Small pressure may cause the rubber cable surface collapse. 5, die hole diameter is too small; insufficient extrusion of rubber, the core gap filled with unsatisfactory; conductive core or core jumper; mold distance is short and so may lead to rubber twist cable surface appears twist pattern. Second, the surface of rubber cables blistering or fizzing phenomenon The main causes of the problem are the following three points: 1, the core wet, rubber contains moisture; 2, lack of curing rubber or into the steam too fast; 3, twisted wire or cable connector is not good, steam into the core inside. Third, the rubber section has pores The main reasons leading to this phenomenon are: 1, low steam pressure; 2, rubber tight enough; 3, downtime Vulcanization, steam pressure put too fast. Cnc Wood Lathe,Wood Cnc Router,Wood Turning Lathe,Cnc Wood Turning Lathe Jinan Jing Xun Cnc Equipment Co., Ltd , https://www.jnjingxuncnc.com
Summary and Analysis of Common Quality Problems in Rubber Cable Production