The Origin he Origin of of Cr Cryogenics ogenics Greek Cryo - - PowerPoint PPT Presentation

The Origin he Origin of

• f Cr

Cryogenics

• genics

 Greek  Cryo – Cold  Genics – Born Of  Processing at temp below -190°C  Cryogenic processing was developed by

Aerospace Industry.

Deep Contr Deep Controlled

• lled Cr

Cryogenics

• genics

 This is a technology where everything we

process gets frozen at ultra low temperatures

• f -193 °C.

 Several different time/temperature profiles

depending on variables like type of material, maximum wall thickness and total mass being processed.

 Then everything is held down at temperatures

• f -193 °C for 12 - 48 hours followed by gradual

ascend and tempering.

Deep Cr Deep Cryogenic

• genic Cy

Cycle le

FURNACE CONTROL PANEL

Temper emperatur ture Contr e Control

• l

 We have pioneered a controlled deep

cryogenic process wherein the cooling of the material was very gradual eliminating thermal shock

 For optimum and consistent results the

temperature changes must be controlled

• exactly. Our PLCs can duplicate the optimal

cooling curve exactly time after time after time.

The Ef he Effect ect on Steels

• n Steels

 Retained soft Austenite is nearly completely

converted to harder, abrasion resistant MARTENSITE (99.7%).

 Formation of ETA carbides & secondary carbides

& uniform distribution in the martensite matrix

 Reliving of Stresses  Denser & Homogenous molecular structure

supported by eta carbides, reducing the possibility of micro cracking, fractures and chipping

Dif Differ erence ence in in Micr Microstr

• structur

ucture

(R (Reta etained ined A Auste ustenite nite Le Levels) els)

Before After

Before After

Before After

The Benefits he Benefits

 Increased Abrasion resistance-wear resistance  Increased Strength and toughness but reduction in

brittleness

 Increased Impact strength  Increased fatigue limit  Higher heat dissipation property  Wear is uniform, thus material to be removed

while grinding is lesser to renew the edge

 Reduction in downtime  One time , solid , irreversible process

Per ermanent manent Pr Process

• cess

 A very important benefit of our method is

that items only have to be processed one time.

 This is not a surface treatment. It is a core

treatment where the whole mass is treated - and unlike surface treatment - regrinding or resharpening does not nullify the benefit.

 This is a permanent, irreversible process. So,

material have to be processed once and have the same benefits every time you have them reground or re-sharpened.

The Benefits he Benefits

 Cost savings

In today’s highly competitive and quality conscious global market cryogenics enhances tool life, reduces wear and machine downtime - resulting in cost savings.

 Manufactured Products of better quality

Industr Industrial ial Applica pplications tions

 Cutting tools – turning, milling, drilling, taps,

reaming,

 Hobbing tools –Hobs, Shapers, Shaver cutters  Forging tools – dies for hot and cold forging  Press Tools – Dies, punches for blanking, punching,

shearing & other operations

 Carbides – tools, inserts, components  High precision & accuracy parts – guides, gauges,

shafts & other industrial spares

Helps Lower Manufacturing Costs

Limita Limitations tions

 Steels need to have a good quality heat

treatment prior to cryogenic treatment (Cryogenics is supplementary to heat treatment and not a replacement to it.)

 Cryogenics will make a good tool better,

but cannot make a bad part good.

Survey No. 56, Bootwala Estate, Aplay Ghar, Kharadi, Pune - 411014 Phone : 9822020000, 9923702000, 9824110266 Email: kryospace@live.in