# # # I. Pre-inspection and evaluation
1. ** Appearance inspection * *: First, make an appearance inspection of the used aircraft tires to see if there is obvious damage, crack or deformation.
2. ** Internal inspection * *: Use nondestructive testing technologies such as ultrasonic method and infrared method to inspect the inside of the tire to ensure that there are no defects such as delamination and air holes inside the tire.
3. ** Evaluate the feasibility of retreading * *: Evaluate the feasibility of retreading tires according to the inspection results. Tires with serious wear or defects may not be suitable for retreading.
# # # II. Cleaning and Pretreatment
1. ** Cleaning tires * *: Use a high-pressure water gun or cleaning agent to thoroughly clean the oil, dirt and other impurities on the tire surface.
2. ** Remove the old tread * *: Use special cutting tools or machinery to remove the old tread on the tire surface and expose the inner tire carcass.
# # # III. Repair and processing of carcass
1. ** Inspection of the tire carcass * *: Carefully inspect the tire carcass to find and repair possible defects such as cracks and perforations.
2. ** Grinding and polishing * *: Use a polishing machine to grind and polish the tire carcass to make its surface smooth and smooth, so as to facilitate the subsequent adhesion of new treads.
# # # IV. Sticking new tread and curing
1. ** Prepare new tread material * *: According to the size and needs of the tire, prepare suitable new tread material, such as rubber strip or rubber sheet.
2. ** Paste the new tread * *: Paste the new tread material evenly on the tire carcass to ensure that the paste is firm and flat.
3. ** Vulcanization * *: Put the tires with new treads into vulcanization equipment for vulcanization. During the curing process, the tire carcass and new tread materials will be closely combined to form a solid tire structure.
# # # V. Post-inspection and testing
1. ** Appearance inspection * *: Carry out appearance inspection on the refurbished tire to ensure that the tire surface is smooth, free of bubbles, cracks and other defects.
2. ** Performance test * *: Conduct performance tests on the retreaded tires, such as air pressure test and load test, to ensure that the tires meet the use requirements.
3. ** Quality certification * *: The retreaded tires that pass the test can obtain the corresponding quality certification for the normal use of the aircraft.
It should be noted that the retreading process of aircraft tires needs to strictly follow the relevant technical standards and safety specifications. At the same time, the use of retreaded tires also needs to be strictly restricted and supervised to ensure flight safety.
In addition, with the continuous development of technology, the retreading technology of used aircraft tires is also constantly innovating and improving. For example, using advanced materials and technology to improve the performance and service life of retreaded tires; Use intelligence and automation technology to optimize the renovation process and improve production efficiency. The application of these new technologies will further improve the recycling rate and renovation quality of used aircraft tires.
