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Home / Products / Cryogenic Tunnel Freezer

12kw Air Blast Cryogenic Tunnel Freezer Metal Processing Minus 190C

12kw Air Blast Cryogenic Tunnel Freezer Metal Processing Minus 190C
12kw Air Blast Cryogenic Tunnel Freezer Metal Processing Minus 190C 12kw Air Blast Cryogenic Tunnel Freezer Metal Processing Minus 190C 12kw Air Blast Cryogenic Tunnel Freezer Metal Processing Minus 190C 12kw Air Blast Cryogenic Tunnel Freezer Metal Processing Minus 190C 12kw Air Blast Cryogenic Tunnel Freezer Metal Processing Minus 190C 12kw Air Blast Cryogenic Tunnel Freezer Metal Processing Minus 190C
Basic Information
Place of Origin: Guangdong, China
Brand Name: DJL
Certification: ISO9001,CE
Model Number: DJL-SLX-1000
Minimum Order Quantity: 1 set
Price: negotiable
Packaging Details: sea shippment package
Delivery Time: 30 working days
Payment Terms: T/T
Supply Ability: 20 Set/Sets per Year
Get Best Price Contact Now Chat Now
  • Detail Information
  • Product Description
Power: 12kw Inner Dimension(L*W*H): 10000*1200*850mm
Weight: 1300 Kgs Working Temperature: -190℃~+320℃
Coolant: Liquid Nitrogen Port: Shenzhen
High Light:

12kw Cryogenic Tunnel Freezer

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Cryogenic Tunnel Freezer Metal Processing

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air blast tunnel freezer minus 190c

Ultra Low Temperature Metal Processing Line Deep Cryogenic Tunnel Freezer
 
Product Description
 

Mechanism of cryogenic treatment

 

1. Eliminate retained austenite:

Generally, the retained austenite after quenching and tempering is about 8-20%. The retained austenite will be further martensitized over time. During the martensite transformation process, it will cause volume expansion, which will affect The dimensional accuracy increases the internal stress of the crystal lattice, which seriously affects the performance of the metal. Cryogenic treatment can generally reduce the retained austenite to less than 2% and eliminate the influence of the retained austenite. If there is more retained austenite, the strength will decrease. Under the action of cyclic stress, it is easy to fatigue and fall off, causing nearby carbide particles to hang in the air and quickly fall off from the matrix, resulting in spalling pits and forming a relatively rough surface.

 

2. Fill the internal gaps to increase the metal surface area, namely the wear-resistant surface:

Cryogenic treatment makes the martensite fill the internal voids, makes the metal surface more dense, increases the wear resistance area, smaller crystal lattice, uniform alloy composition, increases the depth of the quenched layer, and not only the surface, but also increases the number of renovations and life improve.

 

3. Precipitation of carbide particles:

Cryogenic treatment not only reduces residual martensite, but also precipitates carbide particles, and can refine martensite twins. The shrinkage of martensite during cryogenic cooling forces the reduction of the crystal lattice and drives the precipitation of carbon atoms. Diffusion of carbon atoms is difficult, so the carbides formed are nano-sized and adhere to the martensite twin zone to increase hardness and toughness. The wear morphology of metals after cryogenic treatment is significantly different from that of metals that have not been cryogenically treated, indicating that their wear mechanisms are different.

Cryogenic treatment can martensitize most of the retained austenite, and precipitate high-dispersion carbide particles in the martensite. Accompanied by the refinement of the matrix structure, this change cannot be made with traditional metallography, phase transformation The theoretical explanation is not carried out in the form of atom diffusion. Generally, at -150℃~-180℃, atoms have lost their ability to diffuse and can only be explained from the viewpoint of physical energy. The transformation mechanism has not yet been studied clearly. So it needs to be discussed further.

 

4. Reduce residual stress;

5. Make the metal matrix more stable;

6. Increase the strength and toughness of metal materials;

7. Increase the metal hardness by about HRC1~2;

8. The redness and hardness increase significantly.

 

Specification
 
Model
Inner cavity dimension
(L*W*H)
External dimension
(L*W*H)
Freezing capacity
L/KG(hour)
SLX-433
400*350*350
1300*800*1050
50L/80KGS
SLX-544
500*400*400
1410*830*1080
80L/150KGS
SLX-655
600*500*500
1500*900*1130
150L/300KGS
SLX-755
700*500*500
1600*1030*1140
250L/500KGS
SLX-966
900*500*500
1850*1230*1210
324L/650KGS
SLX-1077
1000*700*700 1950*1280*1290
490L/1000KGS
SLX-1288
1200*800*800
2150*1330*1340
769L/1500KGS
SLX-1499
1400*900*900
2350*1580*1470
1000L/2000KGS
 
Why take cryogenic treatment of the workpiece?
 
* To improve the hardness and strength of workpiece
* To improve the abrasion resistance of workpiece
* To improve the impact toughness
* To improve the fatigue strength

* To improve the corrosion resistance of workpiece
* To improve the internal stress distribution of workpiece
* To ensure the dimension accuracy of workpiece

 

Our partners
12kw Air Blast Cryogenic Tunnel Freezer Metal Processing Minus 190C 0
 
Exhibition
 
12kw Air Blast Cryogenic Tunnel Freezer Metal Processing Minus 190C 1
 

Tag:

Cryogenic Tunnel Freezer Line Deep 300C,

14 kw Cryogenic Tunnel Freezer,

ultra cool freezer 850mm

Contact Details
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Phone Number : +8618813573192

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