Production Process Of Atomized Bronze Powder

Production Process Of Atomized Bronze Powder

Bronze powder is an important raw material for the production and use of powder metallurgy products. Production of international industrial bronze powder began at 20 century. The production methods used at that time are restoring copper campfire and electrolysis. After 1950s, there are new production methods for bronze powder: replacement precipitation and hydrometallurgy tack. Then the atomization disposal emerges.
In 1958, China began the trial of bronze powder ( FCu 663 ). It was about the production examination of electrolytic bronze powder at that time. In the mid - 1960s, electrolytic bronze powder trial to be thriving and put small clique production. The mid - 1970s, China has popular a production line of the first electrolytic bronze powder. In the 1980s and 1990s, with the rapid development of China ' s national economy, the bronze powder was substantially new. In order to meet market demand, the number of substantial enterprises by tapping the likely of innovation and technological transformation, the bronze powder production - parish. In the meantime, have popular and developed more than l0 bronze powder manufacturers, National bronze powder production capacity of about 4000t, annual average production is about 1400t.
Alternative to electrolysis in the production of bronze powder, when the devaluation of the atomization milling rule. Practice has proved that a single atomization production of bronze powder bulk density and beggared formability drawback in practical applications can not be replaced by electrolytic bronze powder. Thereupon, the use of water atomization, paired with the subsequent treatment process, equal as redox developed to meet the environmental needs of low bulk density of bronze powder.
Industrialization atomized bronze powder production shortcut by gas atomization and water atomization wise. Production practice proves that the production effect of water atomization gas atomization. The equivalent particle size and particle size composition of the water atomization and gas atomization bronze powder, the same follow - up treatment conditions, the hot spot effect and the finished product bulk density is different. Study its causes, water atomized powder particle shape irregular powder than aerosolization, and in consequence more practical to speed up the incandescence degree.
The pyre process has great influence on the production of high - performance and low loose density bronze powders. It is endow that in sparks process, the fire time and scorching temperatures have a great influence on the flames effect of metal powder. In local, in the identical holocaust time and bonfire temperature, heat is particularly affected the inferno effect. Warmth form is divided into static and productive in two ways. Static conflagration, the searing percentage of the bronze powder is very motionless, and habituated to agglomeration; strenuous inferno is not, so the heat effect is very good. Consonant as under in 5000C / 3h trait, static combustion of the bronze powder enterprising hot spot content is 7. 5 %. The bulk density is 3. 80g / cm3. Strenuous embers content of bronze powder oxygen is 18. 7 % and bulk density is 2. 32g / cm3.
AOR disposition of production of bronze powder, due to the microscopic shape of irregular, low oxygen content, good formability, process performance and stability, and it could replace the electrolytic copper powder. Depend upon a higher friction material used in thick - based products and green strength equivalent products. Several well - known powder metallurgy and electric simulacre enterprises have use the powders in big - scale. It is endow that the effect is very rad.
The antioxidant effect of AOR bronze powder is better than that of electrolytic copper powder. Below the same conditions, the antioxidant effect of the AOR habit bronze powder is 2 times than electrolytic copper powders. This is particularly important to manufacturers of diamond tools. Whereas these enterprises use a small amount bronze powder every time, for requiring a long shelf life of the powder. Source: http: / / www. mhcmp. com