Russia "Kaminsk Chemical Fiber" to improve aramid wire gear metering pump

Aramid wet wire into the need for multiple cycles, in order to optimize the yarn process and cost-effective, the need to use gear metering pump. It not only conveys the polymerization solution to the spinneret, but also controls the amount of the polymerization solution delivered to ensure the yarn quality. According to the study, the output error of the gear pump should not exceed 1.5% (0.0045g / rev). This metering pump output method has been used for more than 70 years in the past chemical fiber production, but Russia has done very little improvement on the gear metering pump itself. In order to improve the durability of the pump parts, pump parts are generally used to change the material approach, in Russia, there have been all parts of the metering pump to stainless steel production, stainless steel containing a high proportion of nickel and chromium, so the problem is to solve corrosion , Wear-resistant, but easy to cause friction parts slip. Another approach is to coat the parts of the dosing pump with a special surface coating. The fly in the ointment is the drastic drop in the physical properties of the aramid yarn sometimes. In cooperation with another unit, Russia's Kaminsk Chemical Fiber Co., Ltd. conducted research and experimental work on the improvement of aramid wire metering pumps, which took 5 years. Metering pump housing and friction gear, made of composite material, this composite material contains polyamide, it is made of self-lubricating parts, the application of new materials and metering pump structural reform, reducing corrosion, And components due to mechanical wear and tear caused by deflection, the gear pump life of 1-2 times, aramid fiber also improved the quality of the fracture load increased by 0.5-1 times the number of declines by 60% or more .

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