Brief introduction to the application of thermal spray technology in the textile industry

       According to statistics, the application of thermal spraying in the textile industry can be summarized in the following aspects.



    (1) Repairing the worn out parts, all kinds of equipment will inevitably have physical wear during the service process. When the wear amount reaches 0.35mm, the textile enterprise decides to scrap the product (or the product to be repaired), and the thermal spraying , The thickness of the sprayed coating can be freely controlled between 0.3-3mm. Therefore, many textile enterprises use this technology to repair a large number of scrapped products, save a lot of machine parts, and obtain huge economic benefits.

    (2) Troubleshooting. Repair the abnormal damage of the main body of the equipment because the raw materials are mixed with metal or other non-metallic hard objects, and they are not cleaned up during the production process. The licker-in shaft and other related parts are rolled, forming grooves, indentations or pits of varying depths, resulting in equipment accidents. It is complex and difficult to eliminate these faults with other repair methods, and spray welding repair is far superior.

    (3) Repair out-of-tolerance parts in the manufacture of accessories and defects such as pores and blisters in castings, and use the spraying welding process to repair the out-of-tolerance waste products that appear in the manufacturing, and turn the waste products into genuine products; self-made castings are often found in Casting defects, such as pores, shrinkage holes, and sand holes, are repaired by spray welding technology. Quality requirements can be met.

    (4) Strengthen the surface of parts and improve the anti-corrosion and wear resistance of equipment. This is another important application of thermal spray technology in textile enterprises. Many machines are used in printing and dyeing factories, and some parts are used for sizing equipment in cotton textile factories. In the production process, it is constantly in contact with chemical media. With the continuation of time, the contact and moving parts are corroded and worn. The application of spray welding technology can arc the surface of the parts and improve the corrosion resistance and lung resistance of the equipment. Extended service life. For example, the cloth guide rollers used in the printing and dyeing industry have a wide variety of specifications and a huge number, and they need to be in direct contact with acids, alkalis and pigments during use. In the past, the stainless steel plate was rolled and wrapped, the process was complicated, the cost was high, and the bending deformation was often caused by insufficient rigidity, forcing downtime. Sound production. Use ordinary seamless steel pipe to spray 2Cr13, 1Crl8Ni9 material on its surface to make cloth guide roller, with thick-walled liner inside, with good rigidity. Strong bending resistance, smooth roll, uniform coating material, no corrosion between welds. Domestic materials can be used to replace imported stainless steel sheets. Obtain obvious economic benefits.

    In the future, with the continuous development of society and the increasing progress of spraying technology, it can be expected that the application of spraying spraying technology in textile enterprises will transition from repairing old waste to pre-protection and strengthening of products; it will be organically related to equipment maintenance. Combination; will develop in the direction of standardization, standardization, mechanization, automation, applicability, diversity, and advanced nature.