Bi-metal liners (double metal liners) are made of forged steel shell and wear-resistant sleeve of high chromium iron. In the production process, the size accuracy should be strictly controlled, which can ensure that they can be easily and stably installed. The inner sleeve with high finish and hardness is wear-resistant, corrosion-resistant and has a long service life. The bi-metal liners are suitable for a lot of bad working conditions. Its service life is more than 800 hours.
Extemnal liner forged in #45 steel, with tension strength o>610MPa,
yield strength o>450MPa, percentage elongaion S>17%, and hardness HB180-200
Inlemal liner made in high chromium cast iron through centrifugal casing process with the annealing hardness HRC<40M,and quenching hardness HRC60-67.
| BOMCO | F-500 | F-800 | F-1000 | F-1300 | F-1600 | F-1600HL | F-1600L | F-2200HL |
|---|---|---|---|---|---|---|---|---|
| Hong Hua | HHF-500 | HHF-800 | HHF-1300 | HHF-1600 | 3NB-1600F | 5NB-1600 | 5NB-2400 | |
| HRSB | RSF-1300 | RSF-1600 | ||||||
| RG | RGF-800 | RGF-1000 | RGF-1300 | RGF-1600 | ||||
| Lanzhou | 3NB1000C | 3NB1300C | 3NB1600F | 3NB1600L | ||||
| EMSCO | F-500 | F-800 | F-1000 | F-1300 | F-1600 | FD-1000 | FC-2200 | FB-1300 |
| Gardner Denver | PAH | P7 | P8/9 | P10/11 | ||||
| National | 7-P-50 | 8-P-80 | 9-P-100 | 10-P-130 | 12-P-160 | 14-P-200 | 14-P-220 | |
| Oilwell | A-850-PT | A-1100-PT | A-1400-PT | A-1700-PT | ||||
| TSC | WF-500 | WF-800 | WF-1000 | WF-1300 | WF-1600 | WF-2000 | WF-2200 | |
| IDECO | T-500 | T-800 | T-1000 | T-1300 | T-1600 |
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