Thermal spray industry application

       

Thermal spray industry application

Various parts have special requirements for their own performance, especially surface performance, in different working environments. For example, piston rods and shaft parts of various pumps working in corrosive environments such as the ocean or acid and alkali must have good corrosion resistance on their surfaces. At this time, only a layer of alloy material can be thermally sprayed on the surface. Corrosion resistance requirements; due to different working environments, some parts only require higher surface hardness, wear resistance, and high temperature oxidation resistance. Such problems can be solved by spraying a layer of coating on the surface; parts After long-term use, abrasion or improper processing, the size will not meet the working requirements, resulting in scrapped parts and replacement of new parts. If it is imported or special parts, no spare parts or spare parts will not only cause certain economic losses, but also delay production. According to the situation, spraying a certain thickness of coating can not only restore the size, but also has better performance.

 

In short, thermal spray coating technology can meet the requirements of different hardness, wear resistance, corrosion resistance, high temperature resistance, oxidation resistance, impact resistance, antistatic and different alloy combinations on the surface of all mechanical parts. This technology is suitable for the manufacture, repair and size reduction of almost all mechanical parts, and can meet the surface treatment and material combination of different requirements. In addition, it can overcome the phenotypic problems that cannot be solved by heat treatment and surfacing technology, so as to achieve the purpose of improving the performance of mechanical parts, extending the service life and regenerating. From an economic point of view, it can save your company a lot of money. This technology is especially suitable for large and medium-sized high-cost mechanical parts, special parts without spare parts and parts with special surface requirements. The specific application scope is as follows:

 

industry

 

Thermal spray application industry and components

 

Paper Machinery

 

Strengthening and repairing the inner wall of steamer, drying cylinder and oven; strengthening and repairing the surface of various rollers; repairing parts such as centrifugal pumps, axial flow pumps, steam boilers, valves and mixer shaft sealing sleeves; strengthening the surface of corrugated rollers (after strengthening After treatment, the surface hardness of the corrugated roller can be increased to HV1200, and the working life of the corrugated roller can reach more than 40 million meters).

 

Textile

 

Roller, guide wire hook, rapier weaving machine picking finger wear-resistant coating; cotton loosening machine pressure roller, small pressure roller, Xilin roller, cast iron outer plate, roller surface, roller shaft for face, upper chopper drive shaft, Doffer shaft; sizing machine steam valve, drying room side shaft plane joint, submerged basket shaft, sizing roller shaft head, main shaft journal, yarn guide roller, squeezing roller, moisture regain roll, warp beam journal, cloth Yarn machine journal; grade and break rollers, large rollers (black rollers), finishing rollers, guide rollers, heat rollers and thread-separating rollers, cloth guide rollers, printing roller surfaces and journals, wire wheels , Friction disc (sheet) and other wear-resistant coatings.

 

print

 

Printing embossing roller; ceramic anilox roller; coating roller, ink roller, printing roller, water roller; tooth pad; tooth piece, etc.

 

metallurgy

 

Heat-resistant and corrosion-resistant coatings for tuyere and slag mouth of blast furnace; molds, guide rollers and conveyor rollers of slab continuous casting lines; various process rolls in steel and non-ferrous metal processing; various rolls of steel surface treatment production lines (such as Continuous annealing furnace furnace rollers, galvanized sunken rollers, various guide rollers, tension rollers, etc.) wear-resistant, corrosion-resistant and anti-tumor coatings.

 

electricity

 

Repair of ball mills, steam turbine rotors and generator rotor journals and cylinder joint surfaces; wear-resistant and corrosion-resistant coatings for four boiler tubes; anti-cavitation and wear-resistant coatings for turbine blades; high-temperature protective coatings for gas turbine blades, flame tubes, and transition sections ; Wear-resistant coatings for wear parts such as fan impellers, ball mills, etc.; door cores, door stems, valve cores, valve parts, valve seats, wear-resistant and corrosion-resistant coatings, and strengthened repair of boiler-related equipment parts.

 

Transportation

 

Wear-resistant coatings for various worn parts; repair and pre-strengthening of automobile engine bases, synchronization rings, and curved rollers; gearbox bearing housings, cylinder plungers, front and rear axle support shafts, gantry guide rails, engine main shaft bushings, rocker arms The wear-resistant coating on the shaft and half shaft oil seal and the wear part of the pin shaft; dredger head, anti-wear ring, mud bucket, cutter blade, shovel teeth, mud pump impeller, ship stern shaft, and copper bushing , Eccentric bushings, gear drive shafts, mud pump water seal necks, mud doors, sliding plates, sand scraper scrapers, wear-resistant coatings, etc.

 

Chemical industry

 

Repair of various containers, reactors, pipelines, pumps, valves and sealing parts; on-site repair of various enamel tanks and special containers; repair of parts such as boilers, air compressors, and water pumps.

 

Glass industry

 

Thermal spraying method is used to spray a layer of ceramic on the surface of the lifting roller and the conveying roller to improve the corrosion resistance of the lifting roller and the conveying roller to the molten glass, inhibit the adhesion of the molten liquid on the roller surface, and slow down the erosion of the molten glass on the roller surface. The roller surface remains smooth for a long time, reducing the maintenance of lifting rollers and conveying rollers, improving glass quality and production yield, and reducing production costs.

 

Electrician production line

 

The supersonic flame spraying process is used to spray carbide ceramic coating on the surface of the wire drawing tower wheel, wire drawing machine, wire drawing wheel, wire wheel, wire drawing cylinder, take-up reel, guide groove and other parts, which can make the surface hardness reach HRc75, which is far more than that of abrasive tools. The wear resistance of steel or chilled cast iron is high; the base of these parts can also be made of ordinary steel or cast iron, which not only reduces the cost, but also prolongs the service life.

 

Municipal

 

Thermal spraying long-term protective coating, anti-corrosion, long-term anti-corrosion of various steel structures, one-time protection life can reach more than 30 years

 

Light industry

 

Plastic mold spraying strengthening repair; extruder screw and rubber mixer rotor spraying strengthening; various roller bearing positions spraying repairing and strengthening.