Craft
Carburizing and quenching + machining
Application features
Low-carbon alloy steels such as 20#, 20CrMnTi, and 20CrMo are used as the matrix, with double 8-character, cross, and three-ring oil lines or oil holes on the surface, and are finished after carburizing and quenching.Then the surface is phosphated, vulcanized, and graphite sprayed to form a high-hardness surface layer with the advantages of wear resistance, fatigue resistance, long life, and high toughness and impact resistance of the intermediate layer.
Suitable for harsh working conditions such as high load, low speed, impact load, etc.
It is used in joint parts such as excavators, rotary drilling rigs, large loaders, continuous wall grabbers, etc.
Characteristics | Unit | Grease lubrication |
Max. dynamic load | Mpa | 250 |
Operating temperature | ℃ | -100 ~ +250 |
Max. line speed | m/s | 0.15 |
Max. PV | m/s·Mpa | 1.5 |
Surface hardness | HRC | 52~62 |