Technical oxygen is used for cutting and welding metal products.
The flame formed during the combustion of this substance has a temperature of about 3000 ° C, which is sufficient for welding most metals.
The gas used for flame treatment of products must contain at least 99.2% oxygen.
At a lower concentration, gas consumption increases sharply and the quality of processing deteriorates.
When performing welding or cutting, oxygen is supplied from special installations, compressor stations or cylinders.
Due to the low density of the substance, it is often stored in a liquefied form.
For the reverse transition to the gaseous phase, special installations are used.
Oxygen is stored under high pressure in special cylinders, which are painted blue and have a special black inscription.
Since this gas is a strong oxidizing agent, high demands are placed on the procedure for filling cylinders.
Before use, containers and fittings are carefully checked for mechanical damage, cleaned of impurities such as oil.
Refueling is carried out only by qualified personnel who have undergone special training.
During storage, the cylinders are protected from direct sunlight.
During transportation, they are laid in a horizontal position.
Transportation in a vertical position is allowed if the possibility of mechanical damage to the containers is excluded.