Wuxi Guanya Refrigeration Technology co., ltd
Carbide cold treatment machine

Carbide cold treatment machine

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


800*600*
600

1200*650*
650

1350*800*
750

2000*900*
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


2200*1150*
1150

2700*1200*
1200

2900*1300*
1250

3700*1400*
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)

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E-mail: sales@cnzlj.com
Add: No.203, Hongyun Road, Hongshan Street, Optoelectronics Park, Xinwu District, Wuxi City, Jiangsu Province, China
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