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5217268
YASSIAN or Your's
How to choose the right knife board
When choosing a knife plate, the working conditions, materials, structure and maintenance requirements should be comprehensively considered. The following is an analysis of the key points:
I. Selection of Working Condition Compatibility
Material type match
For light materials such as wood chips and grains: it is recommended to use smooth bean knife boards, which can reduce the wear rate by more than 30%
Native soil/sand and gravel materials: A bucket tooth bucket knife plate is required to increase the insertion force by 40%
In harsh environments such as ports/coal washing plants: It is recommended to use the main knife plate in the movable knife plate combination, which can extend the wear life by 2-3 times
Ii. Material Technical Standards
Wear resistance grade
The hardness of NM400/NM500 wear-resistant steel plates reaches HB400-550, and their service life is 3-5 times that of ordinary steel
Composite process requirements
High-chromium alloy surfacing technology (6mm thick wear-resistant layer) can reduce the maintenance cost of grab blade plates by 90%
Iii. Structural Design Specifications
Modification of grab blade plate
The open-arc low-temperature automatic surfacing process should be adopted to ensure the welding strength between the Q345 base material and the high-chromium alloy layer
Impact test
Mechanical shock test (≥100 m/s²) and level 6 sea condition simulation test are required
Iv. Intelligent Maintenance Suggestions
Wear monitoring
Integrated sensor for early warning of 0.15mm wear volume
Periodic check
Check the wear condition every 50 hours and measure the thickness of the surfacing layer every 1000 hours (with an error of ±0.5mm)
Note: For special working conditions (such as a low-temperature environment of -20℃), it is necessary to ensure that the impact energy of the material is ≥27J. For port applications, it is also necessary to comply with the ISO 23125:2015 mechanical safety standard .
How to choose the right knife board
When choosing a knife plate, the working conditions, materials, structure and maintenance requirements should be comprehensively considered. The following is an analysis of the key points:
I. Selection of Working Condition Compatibility
Material type match
For light materials such as wood chips and grains: it is recommended to use smooth bean knife boards, which can reduce the wear rate by more than 30%
Native soil/sand and gravel materials: A bucket tooth bucket knife plate is required to increase the insertion force by 40%
In harsh environments such as ports/coal washing plants: It is recommended to use the main knife plate in the movable knife plate combination, which can extend the wear life by 2-3 times
Ii. Material Technical Standards
Wear resistance grade
The hardness of NM400/NM500 wear-resistant steel plates reaches HB400-550, and their service life is 3-5 times that of ordinary steel
Composite process requirements
High-chromium alloy surfacing technology (6mm thick wear-resistant layer) can reduce the maintenance cost of grab blade plates by 90%
Iii. Structural Design Specifications
Modification of grab blade plate
The open-arc low-temperature automatic surfacing process should be adopted to ensure the welding strength between the Q345 base material and the high-chromium alloy layer
Impact test
Mechanical shock test (≥100 m/s²) and level 6 sea condition simulation test are required
Iv. Intelligent Maintenance Suggestions
Wear monitoring
Integrated sensor for early warning of 0.15mm wear volume
Periodic check
Check the wear condition every 50 hours and measure the thickness of the surfacing layer every 1000 hours (with an error of ±0.5mm)
Note: For special working conditions (such as a low-temperature environment of -20℃), it is necessary to ensure that the impact energy of the material is ≥27J. For port applications, it is also necessary to comply with the ISO 23125:2015 mechanical safety standard .
