4Cr13 Ring die heat treatment

The ring mold material of the granulator is 4Cr13 steel, and the heat treatment method includes quenching and twice tempering, wherein the quenching process is the temperature at which the carbide of M23C6 chromium starts to dissolve into the austenite, an increase in the holding time, and then the furnace is cooled to The conventional temperature is kept warm for short periods of time and then quenched in hot oil; the first is tempered at 250°C for 5 hours, the second is tempered at 200°C, and the holding time is 7 hours. It uses high-quality martensitic stainless steel as the ring mold material, which has good wear resistance and corrosion resistance, long service life, and the lowest ton ring mold cost. The optimized quenching process results in more uniform composition,

 

The following vertical vacuum quenching furnace suits the die heat treatment

Model	Temperature Uniform Size	MAX. Temperature	Ultimate Pressure	Heating Power	Temperature Uniformity	Loading Capacity
RVGQ-B0506	500*600mm(Φ*H)	1300℃	4*10-1Pa/6.7*10-3Pa	80Kw	±5℃	200Kg
RVGQ-B0809	800*900mm(Φ*H)	1300℃	4*10-1Pa/6.7*10-3Pa	150Kw	±5℃	500Kg
RVGQ-B1011	1000*1100mm(Φ*H)	1300℃	4*10-1Pa/6.7*10-3Pa	200kW	±5℃	800Kg
RVGQ-B1020	1000*2000mm(Φ*H)	1300℃	4*10-1Pa/6.7*10-3Pa	300Kw	±5℃	1500Kg
RVGQ-B1625	1600*2500mm(Φ*H)	1300℃	4*10-1Pa/6.7*10-3Pa	500Kw	±5℃	3000Kg

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