Chamber Resistance Furnace

• Warranty: One Year
• Heating Mode: Dielectric
• Drying Medium: Electric
• Weight: >50kg
• Transport Package: Export Standard Wooden Case
• Specification: 580x406x480mm
• Model NO.: SRJX Series
• Origin: China

Product Description

Usage:
This series of resistance furnaces are all cycle operated and are used for element analysis and determination in laboratories, industrial and mining enterprises, scientific research and other units, as well as heating during quenching, annealing, tempering and other heat treatments of general small steel parts. In addition, a high-temperature box type resistance furnace with a rated temperature of 1300 ºC can be used for heat treatment of alloy steel, as well as high-temperature heating such as metal sintering, melting, and analysis.

Structure Introduction:
The furnace body is made of angle steel and steel plate, and the furnace is sintered with refractory materials. Lightweight bricks are built between the furnace and the furnace body. Heating elements at 950 ºC and 1000 ºC are distributed around the furnace, while heating elements at 1300 ºC are distributed on both sides of the furnace. When using the resistance furnace, please cut off the power when taking and placing objects.

Installation and use:
1. Place the electric stove flat on a flat indoor ground or an appropriate workbench, prohibit wooden frames, and keep away from other objects that are afraid of heat and flammability.
2. The measuring element thermocouple is placed into the pre reserved hole in the electric furnace, and the gap between the hole and the thermocouple should be filled with asbestos.
3. Open the cover of the temperature controller, connect the wires of the electric furnace, power supply, and thermocouple according to the nameplate behind the cover. When connecting the thermocouple, be careful not to reverse the positive and negative poles.
4. For safe operation, the shell of the furnace body and controller must be reliably grounded.
5. A front stage switch should be installed at the power input end of the power supply line for this box, and a wire twice the thickness of the front stage wire should be used as the grounding wire.
6. Before powering on, check whether the return wire matches the nameplate, and whether the wiring screws on the controller are loose. Once everything is ready, power can be turned on to raise the temperature of the electric furnace. At this time, the instrument will display a green indicator light.
7. Due to the possibility of moisture during storage and transportation, electric furnaces must be dried before use. The drying time should be from room temperature to 200 ºC and dried for four hours; Bake at 200 ºC to 600 ºC for four hours.
8. In order to maintain the service life of the electric furnace, the temperature must not exceed the limit temperature, it is prohibited to pour various liquids into the furnace hall, and the oxides in the furnace should be regularly removed.
9. The heating element silicon carbon rod of a 1300 ºC resistance furnace will gradually age after use for a period of time. When the voltage cannot reach the rated power even if it reaches the highest value, it can continue to be used according to the aging connection method in the attached diagram. If the working temperature cannot be reached again, a new silicon carbon rod must be replaced, and the resistance of the silicon carbon rod should be noted during replacement.
10. When using the electric furnace, refer to the instruction manual of the matching temperature controller.

Service:
1. If small cracks occur inside the furnace lining during use and do not affect the normal use of the electric furnace, there is no need to repair it. If the damage is severe and cannot be used, some furnace lining bricks and insulation fillers can be removed to replace the damaged furnace or lining bricks. When re laying, attention should be paid to ensuring that the furnace bricks are tightly aligned, and that the lightweight bricks are tightly aligned. The alignment of the lightweight bricks should not exceed 1.5 millimeters. Use 20-30% finely ground refractory clay powder and 70-80% finely ground cooked clay powder to fill the brick joints. After the repair is completed, it can be used after 1-2 days and nights of drying in the oven.
2. When repairing the furnace, the heating element (electric furnace rod or silicon carbon rod) should be gently removed to avoid damage.
 

Main technical parameters and complete supply scope of SRJX series 950 ° -1300 ° resistance furnace

 

		SRJX-2-9	SRJX-3-9	SRJX-4-9	SRJX-12-9	SRJX-4-13	SRJX-8-13
Rated power	KW	2	3	4	12	4	8
Rated voltage	V	220	220	220	380	220	380
Phase number	phase	single	single	single	three	single	three
Rated temperature	ºC	950	950	950	950	1300	1300
Empty furnace heating time	min	≤60	≤100	≤100	≤120	≤150	≤350
Empty furnace loss power	KW	≤1.2	≤1.6	≤2.0	≤2.6	≤3.6	≤5.5
Furnace size length Chang-L	mm	250	275	325	500	250	500
Width - b	mm	100	150	200	300	150	200
High - h	mm	75	100	125	200	100	180
External dimensions Chang-L	mm	580	710	705	940	600	800
Width -B	mm	406	460	460	650	500	600
High - H	mm	480	535	535	730	500	550
Weight	KG	50	65	70	180	55	280

Complete set name

Model and specifications

quantity

Box type resistance furnace

SRJX-2-9

SRJX-3-9

SRJX-4-9

SRJX-12-9

SRJX-4-13

SRJX-8-13

1set

Temperature controller

KSY-4-11

KSY-12-11

KSY-6-16

KSY -10-16  DRZ

1set

Thermocouple

WRN-010 nickel chromium nickel silicon thermocouple L=300mm

WRP Platinum Rhodium 010L=225 mm

1branch