Carbide cold treatment machine

Product Description

The cryogenic process of copper-aluminum-tungsten steel tungsten carbide cryogenic treatment machine can improve the performance of metal materials. Effective and economical technical indicators. During the cryogenic process of martensite, the residual austenite is transformed, and the fine dispersed carbides are in the material The change of the performance can prevent the ultrafine carbides precipitated by the movement of dislocations, thereby strengthening the matrix structure and exerting the grain boundary strengthening effect, and the following three aspects are improved: impact toughness, wear resistance, and dimensional stability.

In the industry, the treatment method of further cooling the material after ordinary heat treatment to 100 ℃ ~ 196 ℃ is called cryogenic treatment, which can reduce the content of paralympics, promote the precipitation of fine carbides, reduce intercrystalline tensile stress, and thus improve the following macroscopic properties :

Increase hardness: High-speed steel and die steel increase Rockwell hardness by 1 to 2℃.
Improve wear resistance: Cr12MoV steel wear resistance increased by 30%, 20Ni3Mo carburized steel wear resistance increased by 89%.
Increased bending strength: The bending strength of 440A cast stainless steel increased from 1135MPa to 1355MPa.
Improve toughness: W6Mo5Cr4V2 impact energy increased from 18J to 40J.
Improve Red Hardness: The hardness of W18Cr4V increases from Rockwell hardness 57.9 to 63.9 at 625 ℃.
Improve dimensional stability: 95Crl8 stainless steel residual austenite is reduced from 35% to 10%.
Improve conductivity: The resistivity of copper alloy Cu-15Ni-8Sn decreases from 2 86 × l0-7 Ω.m to 1.5l × l0-7Ω.m.

With the development of low-temperature technology and the improvement of test methods, people have gradually deepened the research of cryogenic treatment. The research scope has now extended from iron making to powder metallurgy, copper alloy, aluminum alloy and other non-metallic materials. Cryogenic chamber application industries are found in many fields such as aerospace, hardware, tools, molds, friction parts, precision machining, measuring tools, textiles, and automobiles. Cryogenic technology is currently a high-tech to improve the performance of metal materials.

It is characterized by consumables, low power consumption and no environmental pollution. It is a new type of environmental protection technology.

At present, this technology has been widely used in aerospace, marine, military, manufacturing, automotive, hardware tools, sports equipment and other industries.

Model				GY-8028N	GY-8050N	GY-8080N	GY-80A16N
volume				280L	500L	800L	1600L
Inner dimension				800600 600	1200650 650	1350800 750	2000900 900
Type				（Chest/Horizontal）
Capacibility carrying				150KG	220KG	300KG	650KG
	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	-80°C~-10°C Optional -80°C～60°C
Cooling capacity at -75℃				1kw	1.5kw	2.5kw	4kw
Temp. accuracy				±2℃	±2℃	±2℃	±2℃
Heating power				2kw	3kw	5kw	8kw
	Nickel-chromium alloy electric heating heater, the controller has double safety protection, with independent temperature limiter protection.
Cooling rate	(ambient temperature of 25 degrees, no-load, from 60 degrees to -75 degrees 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	1650 m³/h	2100 m³/h	2750 m³/h	2100 m³/h	2750 m³/h	3500 m³/h	6000 m³/h
	When it is open, the internal circulation fan automatically turns off. The touchscreen 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 degrees)
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
Dimension				22001150 1150	27001200 1200	29001300 1250	37001400 1350
Power 380V 50HZ				7KW MAX	11.5KW MAX	15KW MAX	21KW MAX
Weight				415kg	525kg	710kg	840kg
Optional	High temperature reaches 150degree and temperature accuracy is ±0.5degree；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	Closed circulating oil heating system, no direct electric heating element inside the box, suitable for flammable products test
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 degrees 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）

Carbide cold treatment machine

SLJ -110℃～-150℃

Single Fluid Heat Transfer System SR

Reactor Temperature System ZLF