Friction liner material experienced the process of polyvinyl
chloride, polyurethane, polyurethane, and thermosetting materials.
The first three materials designed the friction coefficient in 0.2
~ 0.23, the last material’s friction coefficient is more than 0.25
( high friction liner).
High friction liner is divided into domestic high friction,
imported materials to suppress high friction, pure imported high
friction three. The users can choose at will according to their
needs. Tower hoist liner is a rope groove, floor type hoist liner
two rope grooves, mainly for the convenience of turning rope
groove. In return, they also improved the liner service life and
the usage rate of liner material. The friction liner is fixed on
the friction wheel by fixed block and pressing block through bolts.
GM-3 friction liner Mechanical properties |
No. | Item | Unit | Measure results | Remark |
1 | density | g/cm3 | 1.36 | |
2 | hardness | HD | 70-74 | GB/T2411 |
3 | impact strength | KJ/M2 | 9.72 | GB1843 |
4 | tensile strength | Mpa | 19.10 | GB1040 |
5 | Bending strength | Mpa | 26.22 | GB9341 |
6 | Flexural modulus | Mpa | 920 | GB9341 |
7 | elongation at break | % | 10.6 | GB1040 |
8 | compressive strength | Mpa | 45.6 | GB1041 |
9 | thermal decomposition temperature | ℃ | 320 | |
Comparison between GM-3 friction liner and K25 friction liner equal
power abrasion test |
Sample No. | Try before weight(g) | Try after weight(g) | abrasion(g) | Total abrasion(g) | (cm2) | Equal power abrasion (10-6cm3/KN.m) |
K25 | 1# | 549.70 | 549.23 | 0.47 | 0.75 | 0.481 | 5.29 |
2# | 548.12 | 547.84 | 0.28 |
GM-3 | 3# | 513.44 | 513.15 | 0.29 | 0.56 | 0.412 | 5.29 |
4# | 523.22 | 522.95 | 0.27 |
FQA
Q: Why we believe in luoyang zhongtai industries co., ltd:
A: 1. More than 30 years experience.
2.We are the leading professional supplier of mining machinery,
construction machinery, machines casting and forged parts.
3. All products achieved ISO9901:2000 quality management
certificate and CE, ROHS certificates.
Q:Delivery time :
A: Parts lead time 1-2months, machines 2-3months.
Q:Payment terms :
A: Accept payment type: T/T, L/C, Western union,Cash. 30% deposit
when signed contract. Full payment paid before shipping.
Q: Quality warranty?
A: Guarantee time: one year for main machinery. If something wrong
we will provide the technical advice and find solution immediately.
For those wearing parts we guarantee high quality parts for
long-term supply.
Q: After sales service?
A: we can supply technical guide for machines running test and
parts maintenance if end user needs.
