- Country of manufactureRussia
Good mechanical durability of bronze alloys and high resistance to corrosion lead to broad application in production of preparations from bronze. The bronze bar, one of kinds of such semi-finished products, can be made in various ways. Depending on manufacturing techniques, bronze bars share on hot-rolled (rolled and pressed) and holodnodeformirovanny (drawn). Most often hot-rolled bars are made from bezolovyanny bronz.
On physical indicators of hardness of metal (alloy) from which the product is developed bronze bars are subdivided on:
Bronze bars differ and in a form - in cross section they can be:
Production of a bronze bar is conducted with various degree of accuracy (depending on technological requirements), the accuracy of production happens:
Irrespective of production accuracy, standards of production mean absence in a ready-made product of cavities, emptiness, material stratifications, nonmetallic inclusions are also not allowed. Small defects are allowed on a surface of a bronze bar: insignificant dents, scratches, cracks.
Bronze bar | Application
It should be noted that at the bars made by method of cold deformation (drawn bars from Brkmts3-1 bronze), before sending to further processing internal stress has to be removed. Excellent physical characteristics of bronze bars allow with ease of a message machining on turning, boring, milling machines. At turning and milling operations the surface of a bar turns out ideally equal and smooth. The bronze bar is one of the best semi-finished products for production of screws, bolts, various accessories, spindles and shaft, valves and parts of mechanisms for water and gas systems.
Thanks to excellent operational qualities, the bronze bar is widely applied in mechanical engineering and automotive industry, the aviation and space industry, instrument making and the electrotechnical industry. High corrosion resistance of alloys allows to use a bronze bar in shipbuilding.
Pressed in accordance with GOST 1628 produce from Bramts9-2 brand bronze; BRAZHMTSYU-3-1,5; BrAZhNYu-4-4; BrAZh9-4 with a chemical composition in accordance with GOST 18175.
Round on TU 48-21-249-72 make from bronze of brand BRAZHNMTS9-4-4-1 with a chemical composition in accordance with GOST 18175. Bronze of this brand differs in especially high corrosion resistance.