Česká zbrojovka a.s. manufactures and supplies to its customers engineering products, parts and assemblies designed mainly for aircraft and automotive industries. The automotive industry includes activities such as machining, stamping, degreasing and control of production. All of these activities possess certificates. The aircraft industry is involved in production of gear-units for motors and gear wheels, further there are tool works involved in sharpening and in production of cutting tools, gauges, fixtures and moulds. As the surface finishes are concerned we make blueing, phosphating, chromium-plating, nickel-plating and painting. Among heat treatment operations we do hardening, carburising, annealing and blasting.
Hardening Carburising Annealing Blasting
The principle is the processing of steel items in a boiling alkaline-oxidising solution with the addition of a reduction or other substances. On the surface a blue-black to black coating of a mixture of iron oxides appears. The thickness of the layer is 0.5 to 1.5 µm. The thickness and the appearance depend on the type of steel, the type of bath, the length of the bath time and the temperature.
Technology:
Limiting parameters: