Bicycle carbon rim production process

1. Carbon fiber material and air bladders incoming, we use Toray T700 and T800 carbon fiber material, and a special material air bladders which produces smoother rim walls;
2. Applying DSC tester to inspect physical properties;
3. Storing in a refrigerating equipment (-5°C) to maintain the activity of resin;
4. Prepreg cutting, cutting to desired angles and shapes;
5. Precise layup & pre-modling, each rim carries its own layup schedule documents which are meticulously by experienced layup workers;
6. Hot press molding, PC hydraulic molding machines with pressure temperature and time control;
7. Raw finish rim quality control (QC-1);
   
8. Remove the air bladders through the valve hole with a unique process;
   
9. Drilling holes in 4D-direction using PC controlled drilling machine;
10. Quality control (QC-2), check and test;
11. Smoothing, surface treated by experienced workers;
12. Painting and decalcomania;
13. Quality inspection (QC-3), 100% quality inspection and record in database, each carbon rim is given a unique ID number;
14. Packing, each carbon rim is packed in a tailor-made foam bag;
15. Delivery.