Quality requirements: The screw of the machine barrel is made of high-quality 38CrMOALA material, which has been processed by quenching, nitriding, and polishing. Quenching hardness: HB260-290, nitriding depth: 0.4-0.85mm, nitriding hardness: 850-1050HV, nitriding brittleness: ≤ Level 1. The rest shall comply with the industry standard JB/T 8538-2011.
Quality requirements: 9Cr18MoV stainless steel material processing, vacuum quenching, hardness HRC60~62, depth unilateral 18-22mm, ground and polished.
Quality requirements for contract gearbox items: The gear 20CrMOTi material and shaft parts are made of high-strength alloy steel material. Gears are processed through processes such as carburization, quenching, and precision grinding. The gear accuracy reaches GB10095-88, level 6, and the gear hardness is HRC56-62.
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