Hardening of metals

Are you interested in the technology of hardening metals, steels and alloys from the supplier company AvecGlob? Here you will find interesting information on this topic /

The essence of the process

Hardening is the process of heat treatment of steels and alloys, as a result of which a significant increase in hardness and mechanical strength is achieved, while reducing the ductility and viscosity.

As a result of quenching, it is possible to impart strength values to the mild steel values that are characteristic of high-carbon steels. Quenching technologies depend on the chemical composition of the metal or alloy, as well as on the required hardness parameters after heat treatment.

There are volumetric and surface hardening. In the first case, the workpiece material is calcined through, and in the second, the required strength characteristics are formed only in the surface layer (this is how laser or electric-arc hardening is done). The degree of hardening is determined by two structures — martensite and austenite. As a result of quenching, not only the mechanical properties of the metal being processed, but also its magnetic parameters, change.

Urgency of application

Quenching is subjected to critical parts of machine-building or power engineering (gears, shafts, parts of turbines, construction and road equipment, engines, etc.).

Supplier — AvekGlob Company — offers at affordable prices from the manufacturer various metals and alloys subjected to quenching, in the quantity and assortment required by the customer. The supplier guarantees the timely delivery of products to any address specified by the consumer

The sequence of the

Tempering involves heating the metal to a certain temperature, depending on the percentage of carbon in the steel or iron. The metal is held at this temperature for a certain period of time. This process modifies the structure of the crystal lattice of the metal and makes it more stable. Then follows the accelerated cooling in water or oil. After this quenching process, the metal in most cases undergoes tempering, during which the hardness decreases slightly, but internal stresses decrease, which can lead to premature destruction of the product (especially if it works under dynamic and alternating loads).

Possible problems

When tempering, care should be taken to ensure the uniformity of the heating of the parts, otherwise the increase in hardness can be very uneven. At too high cooling rates (for example, in water), the parts jar, lose their dimensional accuracy, and low-plastic steels or alloys can even crack. Some alloys (for example, aluminum or copper) can not be quenched at all, and their strength is increased by strain hardening.

Supplier — AvekGlob Company — offers to purchase various metals and alloys subjected to quenching, in any quantity and range of sizes. Products can be bought at a price formed on the basis of European and world standards of production. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.