Heat treatment freezer

Product Description

In the past, during hot-fitting, when it could not be installed, workers often needed to use a sledgehammer or a crane to lift heavy objects for impact to complete the assembly. This operation has a certain degree of danger. Break. With cold assembly, a small workpiece can be completed by one person, just put the parts into the base hole. During the hot-fitting process, the base hole parts need to be heated and then cooled in the air. This process is equivalent to performing a low-temperature annealing treatment on the parts, which reduces the hardness and strength of the parts. Cold assembly is equivalent to performing a cold treatment on the parts. After the parts are cold treated, the following can be obtained:
a. Lower austenite can make the product invariable for a long time;
b. Increased hardness and averaging;
c. Improve the performance of machinery;
d. Stable size;
e. Increased magnetism;
f. Enhanced wear resistance.

Thereby improving efficiency and reducing the labor intensity of workers.

The cryogenic process of the ice-cooling machine for the heat treatment of cutting tools can improve the performance of metal materials. Effective and economical technical indicators. During the cryogenic process of martensite, the retained austenite is transformed, and the performance of the finely dispersed carbides changes in the material , It can hinder the dislocation movement of ultra-fine carbides, thereby strengthening the matrix structure and exerting the grain boundary strengthening effect, which has been improved in the following three aspects: impact toughness, wear resistance, and dimensional stability.

Model		GY-A028N	GY-A050N	GY-A080N	GY-A0A16N
Volume		280L	500L	800L	1600L
Inner dimension		800600 600	1200650 650	1350800 750	2000900 900
Type		（Chest/Horizontal）
Capability carrying		150KG	220KG	300KG	650KG
Capability carrying	Designed bearing capacity is two times of the standard one, (refrigeration system is designed according to the standard capacity when target artifact weight is greater than the standard capacity, the cooling rate will decrease)
Temp. range		-100℃～60℃	-100℃～60℃	-100℃～60℃	-100℃～60℃
Cooling capacity at -90℃		0.7kw	1 kw	2 kw	3kw
Temp. accuracy		±2℃	±2℃	±2℃	±2℃
Heating power		2kw	3kw	5kw	8kw
Heating power	Nickel-chromium alloy electric heating heater, the controller has double safety protection, with independent temperature limiter protection.
Cooling rate	(Ambient temperature of 25℃, no-load, from 60 ℃s to -95 ℃ about 1 hour).；cooling rate will be a little different for temperature changes.
Controller	ASET multifunctional controller
Operation panel	7-inch color touch screen, display set temperature, measured temperature.
Temp. record	Temperature curve and fault record, U-disk data export, excel format.
Inside circulating air		2100 m³/h	2750 m³/h	3500 m³/h	6000 m³/h
Inside circulating air	When it is open, the internal circulation fan automatically turns off. The touch screen displays open state.
Compressor	Emerson Copeland, adopt cascade refrigeration technology
Intermediate heat exchanger	KAORI Plate heat exchanger
Dry filter	Emerson
Expansion valve	Electronic expansion valve
Evaporator	Copper-tube with aluminum-fin
Cooling Type	Air-cooled with water-cooled auxiliary functions (Ensure good cooling capacity when temp. above 30℃)
Means of insulation	Polyurethane foam insulation, thermal insulation layer 125 mm, with embedded FIR boards
Safety Protection	Self-diagnosis function; Phase sequence phase failure protection; leakage protector; cooling unit overload protection; high and low pressure switch, overload relay, thermal protection device, high temperature protection and temperature fault protection.
Case material	Outside is cold rolled steel painting, internal is SUS304 wire drawing board.
Refrigerant	R404A R23 R14
Dimension		22001150 1150	27001200 1200	29001300 1250	37001400 1350
Power 380V 50HZ		12KW MAX	16.5KW MAX	20KW MAX	30KW MAX
Weight		495kg	625kg	810kg	940kg
Optional	High temperature reaches 150℃ and temperature accuracy is ±0.5℃；the input power will be changed （When select this model, the thickness of thermal insulation layer will be 150mm，thermal insulation material will be silicate and vacuum plate）
Optional	Temp. accuracy ±0.5℃
Optional	Cooling and heating program controlled, meet cold treatment process requirements(can set 5 programs, each program can edit 45 steps.)
Optional	Interior door, reduce cooling capacity lost when picking small workpieces (temperature below 60℃ optional)
Optional	Outside SUS304 wire drawing board case
Optional	Diameter 50mm cable hole
Optional	Electric heating vacuum glass observation window (with lighting) 200mm*300mm
Optional	Low temperature automatic defrost (can be once per hour or use manual button to defrost), ensure it can work at low temperature for long time even the door is open and close frequently）

Heat treatment freezer

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