Nitride hardening of steel (1986)

Shipyard, panorama of a ship under construction (shot from the bow).

Port, shipyard, various shots of ships under construction, cranes, etc.

Plant workshop, steel being melted.

The frame shows production processes in the plant workshop, hot metal, sparks, etc.

Large - hot liquid metal.

Nitride hardening requires the mandatory use of cast ligatures obtained by metallurgical methods.

The ligature is an alloy in which cheap and common nitride-forming elements are introduced - nitrogen, vanadium, niobium, titanium, etc.

Nitrogen can be introduced in the cheapest ways - with plasma or into the melt products with gaseous nitrogen.

Liquid molten metal flows.

Ligatures are manufactured on standard smelting equipment (the production process in the workshop is shown, in the frame steelmakers are melting metal).

The resulting finished ligature is distinguished by uniformly distributed inclusions of nitride compounds (the ligature structure is shown at a magnification of 1000 times).

Steel foundry, production process, steel smelting.

Workshop, liquid hot metal is poured into a large refractory container.

The ligature can be introduced either into the bath of a steel-smelting furnace or into a pouring ladle.

Plant workshop, production process, metallurgists are working.

Nitride inclusions have a beneficial effect on the structure of steel at all stages of product manufacturing (animation insert).

The process of pouring metal into special forms (molds) is shown.

The photographs show how the structure of the metal changes (the structures of ordinary steel and steel with the addition of ligature are shown).

Pearlitic structure.

Martensitic structure.

Austenitic grain.

A bar of hot metal is formed.

Hot metal.

Rolling mill - a hot sheet of metal is moving.

Close-up - a hand presses buttons on the control panel.

Metal strength test - a steel ring is compressed under a press.

The instrument needle is moving.

Metallurgical plant, workshop, hot metal bars on a conveyor, automated production process in the frame.

In the frame - production of forging and pressing tools.

Hot parts on the conveyor.

Plant workshop, long steel pipes, panorama of the enterprise employee who is sitting at the control panel and managing the equipment.

Drilling rig.

Crane working in a quarry (in the frame earthmoving equipment, dump trucks, etc.).

View of the quarry from above.

Excavator working.

Freight train passing.

Winter, snow falling, equipment working in the quarry.

Hot steel layers moving along the rolling mill.