Our company has the ability to forge, quench and temper, process, surfuce quench and carbonize high precision soft/ hard-surfaced gear or gear shaft. The main specification is within ¦µ3500mm, Mn¡Ü40mm. Our company can produce 4000 tons of gears and gears shafs annually, and can produce different products according to our custumers¡¯ requirements.
The main technical parameters of gear
1. Standard of materials: GB/T3077-1999
2. The grade of materials: 45, 20Cr, 40Cr , 35Cr Mo , 42Cr Mo, 20CrMnMo, 20CrMnTi, 17CrNiMo6, 20CrNi2Mo
3. Standard of pruduction: ISO1328-1995
4. Smelting method: electric arc furnace + refining furnace
5. Precision accuracy: according to GB/T10095-88 standard, within five degrade
6. Hardness: 56-60 HRC is the hardest; 40-55 HRC is the average hardness; below 28 HRC is the soft
7. Detection methods and the implementation of standards
Samples are from the same furnace
Tensile test is done according to GB/T288-2002 standard
Hardness test is done according to GB/T231 standard
8. Standard of ultrasonic flaw detection
All forging pieces must go through the GB/T6402-1999 standard ultrasonic flaw detection, grade two. If the forging pieces are within 1000 kgs, they can reach the GB/T6402-1999 standard, grade one.
9. Manetic particle testing
Every product must be tested after the surface quenching and machining.
Method: magnetic particle testing
Satisfying products: no crack, scab, white dot or fold. Repair welding is not allowed.
Statistics above are for reference. We can produce according to different requirements.
10. Parking: wood package for shipping (see below)
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