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Quenched Steel Flexo Doctor Blades , Doctor Blades For Gravure Printing
7. Quenched steel doctor blades used in coated paper making machine
Doctor blades is the main part of the paper machine scraper which used for cleaning the rolls’ surface.
Scraper device
Components include: clamps, scraper blades, bearings, pressure and pressure relief devices, swinging devices.
Pressing part blade: a pressure roller blade to clean fine fibers and fillers, and a blade on the blanket guide roller to prevent dirt from contaminating the carpet, because the small fibers and fillers tend to transfer from the carpet to the smooth roller surface.
Drying blade: Press on the inlet and outlet of each group of dryers to remove paper breaks and dirt on the cylinder surface.
Problems and solution :
| Problems | Reasons | Solution |
| Uneven wear |
Uneven roller surface Damaged fixture Fouling |
Use a softer spatula Cleaning maintenance fixture Use a wear-resistant spatula |
| Middle or end heavy wear |
Mismatch between scraper and roller Excessive or virtual contact with the spatula due to prolonged use |
Reassembly and use of shims to adjust the relationship between fixture and scraper seat Replace with new scraper |
| Excessive wear on the paper feed section | Paper leaves dirt on rollers or cylinders |
Use a wear-resistant spatula Handle scraper edges often Use edge slotted blades to prevent excessive end pressure |
| Serious wear on the outside of the paper feed section | Sheets lubricate the rollers | reduce pressure |
| Jagged |
Fouling on rollers Excessive scraper pressure Material is too hard |
Use a wear-resistant spatula relieve pressure Use a softer spatula |
Quenched Steel Paper Machine Doctor Blade
,Gravure Printing Paper Machine Blade
,Coated Paper Making Doctor Blade
Mr. John Lou
Manager
- Email: daqiancorp.01@gmail.com
- Tel: 8615638823327
- WhatsAPP: 8615638823327/8615565063237
-
WeChat:
15638823327
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