top
logo

HOTLINE 24 HR.

(66) 089-787-3603 

(66) 083-753-1928

                                         

 

 


หมวดเตาอุตสาหกรรม

หมวดอุปกรณ์เตา

จำนวนผู้เยี่ยมชมเวปไซต์

Today22
Yesterday232
Week1769
Month5802
All224141

Currently are 5 guests and no members online

Flag Counter

QR CODE

Endothermic Gas

 Endothermic gas generator

               Endothermic gas generator

Endothermic gas or endo gas is used for the thermal treatment of metals as a protective gas. It can be generated in an

endothermic gas generator by burning natural gas, consisting mainly of methane or other hydrocarbons with heavy lack

of oxygen. The reaction takes place at the surface of a catalyst under external heating at around 1000°C. The process

needs energy supply and is therefore endotherm.

        2 CH4  +  O2  →  CO  +  4 H2
Carbon monoxid and rather high amounts of hydrogen are formed. Nitrogen from the air is of course also available in larger

quantities and can be further increased in order to dilute the hydrogen content. Carbon dioxid, water and unburnt

hydrocarbons are included only in small amounts. Formation of soot can be avoided by selecting proper process conditions.
Hydrogen and carbon monoxide are reducing agents and avoid oxidation or corrosion of metal surfaces in a furnace. It has to

be taken into account however, that carbon monoxid increases the carbon content of steel. Endothermic gas can therefore

be used for surface hardening of steel by carbonisation or carburization. Carbon concentration can be increased up to the

saturation level of austenite in surface close areas (around 1mm deep).

 

Applications

  • Carbonisation, Carbonization, Carburization, Carburisation
  • Sintering
  • Annealing of steel with high carbon content
  • Normalizing

      Properties

  • Cheap formation of shielding gas
  • Stable gas supply
  • Energy saving heating by usage of Moldatherm® heaters
  • Customized design

 


bottom
top
Copyright@ 2014 Professionnal Heating & Furnace Co.,Ltd.

bottom

power by www.profurnace.com.