Original price was: $49.00.$29.40Current price is: $29.40.
Total Indicated Runout and its Impact on ed Board Quality
standard by Technical Association of the Pulp and Paper Industry, 01/01/2005
Description
In the process of making corrugated board, there are several steps in the process that require precise applications of pressure between rolls, or consistent gaps between rolls in order to meter precise amounts of adhesive to the flutes. In order for these requirements to be met, rolls have to be parallel to each other and also must be as close to perfectly round as possible.If a pressure roll is not perfectly round, then as the roll turns against the corrugating roll there will be areas where the pressure applied to the singlefacer web at the rolls’ nip point will be lessened. If the pressure is lessened enough, the singlefacer bond can be compromised and, thus, affect board quality. An adjustment to increase pressure to compensate for the problem could lead to another problem-pressure roll cutting of the medium and possibly box failure in compression and/or mullen (burst).
Product Details
- Published:
- 01/01/2005
- Number of Pages:
- 3
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
Original price was: $49.00.$29.40Current price is: $29.40.
Total indicated runout and its impact on combined board quality
| Published by | Publication Date | Number of Pages |
| TAPPI | 06/30/2022 | 3 |
Description
TAPPI TIP 0304-56 – Total indicated runout and its impact on combined board quality
In the process of making corrugated board, there are several steps in the process that require precise applications of pressure between rolls, or consistent gaps between rolls in order to meter precise amounts of adhesive to the flutes. In order for these requirements to be met, rolls have to be parallel to each other and also must be as close to perfectly round as possible. Bearings or journals must also be operating in such a manner as to allow the rolls to turn as close to perfect circular motion as possible.
If a pressure roll is not rotating in a perfectly round manner, then as the roll turns against the corrugating roll there will be areas where the pressure applied to the singlefacer web at the rolls’ nip point will be lessened. If the pressure is lessened enough, the singlefacer bond can be compromised and, thus, affect board quality. An adjustment to increase pressure to compensate for the problem could lead to another problem-pressure roll cutting of the medium and possibly box failure in compression and/or mullen (burst).
Product Details
- Published:
- 06/30/2022
- Number of Pages:
- 5
- File Size:
- 1 file , 330 KB
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
Original price was: $49.00.$29.40Current price is: $29.40.
Total indicated runout and its impact on combined board quality
standard by Technical Association of the Pulp and Paper Industry, 01/01/2009
Description
In the process of making corrugated board, there are several steps in the process that require precise applications of pressure between rolls, or consistent gaps between rolls in order to meter precise amounts of adhesive to the flutes. In order for these requirements to be met, rolls have to be parallel to each other and also must be as close to perfectly round as possible.
If a pressure roll is not perfectly round, then as the roll turns against the corrugating roll there will be areas where the pressure applied to the singlefacer web at the rolls’ nip point will be lessened. If the pressure is lessened enough, the singlefacer bond can be compromised and, thus, affect board quality. An adjustment to increase pressure to compensate for the problem could lead to another problem-pressure roll cutting of the medium and possibly box failure in compression and/or mullen (burst).
Product Details
- Published:
- 01/01/2009
- Number of Pages:
- 4
- File Size:
- 1 file , 54 KB
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
