Belting Flashcards
(6 cards)
1
Q
What are the benefits of a black shoe press belt?
A
- excellent wear resistance
- stable structure
- long running time
- excellent impact resistance
- efficient dewatering
- no paper marking
2
Q
What are the requirements of a shoe press belt?
A
- durable
- constant dewatering properties during lifetime
3
Q
How are shoe belts manufactured?
A
- Casting and yarn adhering
- First post-cure treatment
- Low friction treatment on inside surface
- Second post-cure treatment
- Release from mould and third post cure treatment
- Finishing
4
Q
What raw materials are used for shoe press belt manufacture?
A
Oil side = twisted PET multifilament
Paper side = twisted PA multi- and mono-filaments
5
Q
What can be used to reinforce belt structures?
A
- reinforcing yarns
- woven base fabric
6
Q
What are the function of discontinuous grooves in shoe press belts?
A
To prevent water flowing backwards to the nip.
