Are you interested in annealing, hardening and heat treatment of lead? The supplier Evek GmbH offers to buy lead corresponding to the requirements of GOST 3778-98 in any quantity at an affordable price in a wide range. We provide product delivery anywhere in the continent. The price is optimal.

Heat treatment of rolled lead

Ordinary heat treatment of lead, due to its low melting point, is not possible. In particular, in order for pure lead to obtain higher mechanical characteristics, the metal should be cooled to a temperature below -33 ° C. Heat treatment of lead alloys, especially those used in the manufacture of high-current cable sheaths, has gained practical use. Lead alloys used for this purpose are alloyed with tin, but in recent years so-called triple lead alloys, alloyed with tin or antimony and with cadmium and tellurium, have become common.

Aging

The main type of heat treatment of such alloys is natural aging, which increases the hardness of the material to 60-70 MPa. As the duration of aging increases, alloys with these additives acquire additional hardness, but such hardening is removed spontaneously after 3 to 4 weeks.

Hardening

Hardening is carried out for alloys of lead with antimony. The process consists in heating the alloy to a temperature of 55 ... 60°C, followed by slow cooling. The final hardness of such alloys reaches 100 MPa. The supplier Evek GmbH offers to buy lead (GOST 3778-98), at an affordable price in a wide range. We provide product delivery anywhere in the continent. Price is optimal.

Heat treatment that increases corrosion resistance.

This technology finds application in the production of battery plates. In constantly changing temperature and humidity conditions, lead loses its thermodynamic stability. In order to avoid this negative phenomenon, heat treatment is performed, which consists of the following:

• The surfaces of the plates are thoroughly washed and dried;
• After cleaning the blanks are subjected to heat treatment at temperatures of 150 ... 200 ° C;
• After 1 ... 1,5 h the temperature is reduced to room temperature.

As a result of such heat treatment the anticorrosive properties of the surface of the battery plates are increased by 30 ... 40%.

To buy. Supplier, price

Are you interested in annealing, hardening and heat treatment of lead? The supplier Evek GmbH offers to buy rolled lead that meets the requirements of GOST 3778-98, in any quantity at the manufacturer's price. We provide delivery of products anywhere in the continent. The price is optimal. We invite you to partner cooperation.