Solid carburizing agent

2, the product characteristics
1, granular, particle size uniformity, the product mainly in the northeast hard wood carbon (oak wood), high hardness, in the carburization without broken, do not collapse boxes, shrink small, so that the workpiece surface to be uniform carburization.
2, active strong, high density; fine sieve after crushing charcoal, ash less impurities less high carbon content, seepage flow air box, shortening the carburizing cycle.
Third, use
1, packing carburizing, the workpiece and between the walls of the box between the workpiece and to maintain the 3-6mm distance. Carburizing agent and the workpiece hierarchical placement, to maintain a certain thickness and the distance (not to be superposed artifacts). Then add filling and tamping carburizing agent.
2, carburizing agents re-use should be kept dust screen to go use the old and new penetration enhancers by 1:1,2:1 or 2:3 mixture preparation.
3, carburizing agent should be stored in a dry place, unboxed unused carburizing agent should be moisture-proof seal.
4, carburizing and hardness of the organization
To 20Cr material, for example: 880for half an hour at insulation, 920heat for four hours, 880 ~ 890 ℃, when the proliferation of two-hour period of heat, air-cooled.
Reheating after quenching surface layer: fine needle-like martensite, granular carbide.
Excessive layers: pearlite transition gentle.
Carburizing Depth: 0.8 ~ 1.2mm
Hardness: HRC57 ~ 63
Pay attention to:
1, part carburizing former should be kept clean, no oil, water and stain.
2, carburizing agent should be placed in a dry of the Department to adopt the appropriate particle size can not be mixed with other debris.
3 pairs of alloy steel after carburizing quenching temperature can be properly increased.
6, packing:
Outer bag with inner double plastic bags, each 50kg, 40kg.