Product Details

Protective atmosphere vacuum heat treatment furnace

Brief

RQ3 series pit type protective atmosphere vacuum heat treatment furnace is new type and energy-saving batch type furnace,working temperature is 950℃,using the following heat treatment,carburizing, nitriding and carbonitriding, the workpiece is vertically loaded in furnace tank for heating,not easy to deformation. Pit type furnace is usually placed under the ground plane in the workshop, also is placed above the ground plane, or ground level fluctuation in each half.

Application field

Mainly used for rod and long axis steel mechanical parts.

Structure

This furnaceis mainly composed of furnace shell, furnace lining, heating device, muffle tank, loading frame, the furnace cover, and furnace cover lifting mechanism.,etc. Furnace body is cylindrical deep well.

Advantages

1.The workpiece is vertically loaded in furnace tank for heating,not easy to deformation;

2.Good sealing, easy operation and maintain, long working service life.

3.Using advanced protective atmosphere control system, including carbon control instrument and oxygen probe, ensure that the workpiece carbonitriding layer uniform and high precision.

Main technical parameters

Model		RQ3-25-9	RQ3-35-9	RQ3-60-9	RQ3-60-12	RQ3-75-9	RQ3-90-9	RQ3-105-9	RQ3-150-9	RQ3-180-9	RQ3-220-9	RQ3-288-9
Rated power(kw)		25	35	60	60	75	90	105	150	180	220	288
Rated voltage(V)		380	380	380	380	380	380	380	380	380	380	380
Max temperature(℃)		950	950	950	950	950	950	950	950	950	950	950
Working temperature(℃)		0-940	0-940	0-940	0-940	0-940	0-940	0-940	0-940	0-940	0-940	0-940
Phase		3	3	3	3	3	3	3	3	3	3	3
Charging size (mm)	Diameter	Φ300	Φ300	Φ450	Φ450	Φ450	Φ600	Φ600	Φ600	Φ800	Φ800	Φ800
Charging size (mm)	Depth	450	600	600	600	900	900	1200	1800	1500	1800	2500
Muffle tank size (mm)	Diameter	Φ450	Φ450	Φ630	Φ630	Φ630	Φ780	Φ780	Φ780	Φ980	Φ980	Φ980
Muffle tank size (mm)	Depth	938	1125	1144	1144	1450	1490	1800	2400	2100	2400	3100
Furnace hearth size(mm)	Diameter	Φ590	Φ590	Φ770	Φ770	Φ770	Φ920	Φ920	Φ920	Φ1120	Φ1120	Φ1120
Furnace hearth size(mm)	Depth	958	1150	1164	1480	1480	1520	1830	2430	2130	2450	3130
Heating zone qty		1	1	2	2	2	2	2	2	2	2	3
Heating elements connection		Y	Y	YY	YY	YY	YY	YY	YY	YY	YY	YYY
No-load heating up time(h)		≤2.5	≤ 2.5	≤ 3	≤3	≤3	≤3	≤3.5	≤3.5	≤3.5	≤3.5	≤4
No-load power losses(kw)		≤7	≤8	≤11	≤16	≤14	≤16	≤18	≤28	≤29	≤34	≤41
Temperature control precision(℃)		±1	±1	±1	±1	±1	±1	±1	±1	±1	±1	±1
Max loading capacity(kg)		50	100	150	150	220	400	500	800	1500	2000	3000
Weight(kg)		1700	1850	2650	2950	3200	3700	4500	5000	5500	6000	5500

Note: Various size furnace can be designed and manufactured as user's needs.