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Metal fibers are metallic materials science development is an important area. Metal fibers having a metallic material not only excellent properties inherent, there is a remarkable physical properties. The most commonly used method of producing metal fiber bundle drawing method, the process of fibrosis in the internal structure and surface properties to place a significant change from the traditional materials, a new material development value doubled. Metal stainless steel fibers as high temperature, corrosion resistance, flexibility and spinnability, are widely used in many fields. However, special metal fiber preparation process, drawing and heat treatment parameters during any impact on the quality of the fiber is, the change in properties, affecting the application results. Especially in recent years with the development of science, fine stainless steel fibers because of their special properties of more and more people's attention, such as high filtration precision stainless steel fiber felt need to adopt superfine fiber (6μm, 8μm) to prepare, while the fine Since the surface of the fiber into a network problems caused by uneven, affecting the fiber mat filtration accuracy, it is necessary to study the surface of the ultrafine fiber and process, it does not affect other properties of the fiber under the premise of improving the surface condition. So far little research in this area, it is necessary to research in this area. This surface modifier used for modification of the fiber surface, in a vacuum by the volatile modifier, the modified fiber friction coefficient changes, the modified fiber sintered corrosion changes and modification of the fiber mat spread Uniformity of other studies, we can draw the following conclusions: 1, modifier PEO heated in a vacuum, as the temperature increases, the evaporation rate increases. At about 270 ℃, the vacuum level to a minimum, the maximum amount of volatile; temperature was raised to 420 ℃, evaporation rate close to 100%, the remaining traces of residual main elements carbon content of 0.1%. 2, silicone modifier heated in a vacuum, as the temperature increases, increasing evaporation rate. Temperature range of 480-500 ℃ vacuum most significant change; volatile at 520 ℃ was 99%, continue to increase in temperature, evaporation rate of up to 100%. 3 the two experiments have proved flux modifiers, modifier in the heating process decomposition reaction to produce small molecules evaporate. 4, for the same material of stainless steel fibers, the finer the fiber, the fiber surface friction coefficient is. Modified fiber with Xi'an University of Architecture and Technology University, with the increasing concentration of the surface modifier significantly lower coefficient of friction. And the modifier concentration was increased to a certain extent, the fiber surface friction coefficient does not change. 5, using a concentration of 0.4% PEO modified fiber, the surface friction coefficient value had reached the theoretical requirements. Concentration increased to 0.5%, the variation coefficient of friction tends to slow. The silicone modifier, the concentration of 2%, the lower coefficient of friction tends to slow start level, 1.5% in the modified fiber friction coefficient has reached the theoretical required value. 6, the same etching conditions, the finer the fiber, the greater the corrosion rate. The PEO-modified fiber sintered after the corrosion rate modifier with the increase of the concentration, but the concentration of 0.4%, the corrosion rate in accordance with the performance requirements of the fiber concentration to 0.5% corrosion rate suddenly increases, beyond the child spit energy requirements. The silicone-modified fiber sintered O to 2% concentration range, the corrosion rate did not change significantly, in accordance with performance requirements. 7, the finer the fiber, the greater the friction coefficient, the more difficult to form a network. Fiber by the modified lower coefficient of friction of the surface, into a network of a marked improvement in yield of fiber network is improved. Modified by different modifiers into the net effect is to improve different. The PEO-modified fibers into the net effect is a certain improvement, the silicone-modified fibers into the net effect is significantly improved. 8, with a trace of diameter fibers, crimped fibers are straight fiber lapper effect, into the net yield is high. So filament diameter fibers treated by crimping process will improve the quality of fiber network.
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