Low pollution of textile machinery

The change in the composition of textile machinery materials is also a feature of the development of modern textile machinery. Cast iron was originally the main structural material of textile machinery, because it is rich in resources, cheap in price, easy to process, can be cast into complex shapes, relatively corrosion-resistant, and has good shock absorption, but it is gradually being shaped by steel and welded parts. Replaced by alloy die castings, the percentage of weight in each machine is significantly reduced. Wood is also the main structural material of textile machinery. Due to excessive forest deforestation, resources are becoming increasingly scarce and gradually replaced by engineering plastics and light metals. Composite engineering plastics have superior properties not found in wood, such as high strength, corrosion resistance and water resistance. Weather resistant, wear resistant, etc. High-quality steel is also used more as a drive shaft, gear blank, connecting rod, cam and other materials. In order to resist the acid corrosion of the chemical and the high temperature corrosion of the organic matter, the dyeing and finishing machine mostly uses nickel-chromium stainless steel containing molybdenum and titanium as a container, a machine room wall, a guide roller and other parts in contact with the fabric and the medium. Chemical fiber machinery is more widely used as a spinneret, screw extruder, metering pump and other parts in contact with polymers and parts that work in liquids containing organic solvents at high temperatures.