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 pyre and electrolysis. After 1950s, there are new production methods for bronze powder: replacement precipitation and hydrometallurgy adjustment. Then the atomization wrinkle emerges.
In 1958, China began the trial of bronze powder ( FCu 663 ). It was about the production appraisal of electrolytic bronze powder at that time. In the mid - 1960s, electrolytic bronze powder trial to be on track and put small battery production. The mid - 1970s, China has celebrated 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 augmented. In order to meet market demand, the number of great enterprises by tapping the inherent of innovation and technological transformation, the bronze powder production - canton. In the meantime, have down pat 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 arrangement. Practice has proved that a single atomization production of bronze powder bulk density and down-and-out formability drawback in practical applications can not be replaced by electrolytic bronze powder. Inasmuch as, the use of water atomization, banal with the subsequent treatment process, parallel as redox developed to meet the environmental needs of low bulk density of bronze powder.
Industrialization atomized bronze powder production proceeding by gas atomization and water atomization way. Production practice proves that the production effect of water atomization gas atomization. The alike particle size and particle size composition of the water atomization and gas atomization bronze powder, the duplicate follow - up treatment conditions, the scorching effect and the finished product bulk density is different. Study its causes, water atomized powder particle shape irregular powder than aerosolization, and ergo more convenient to speed up the incandescence scale.
The fire process has great influence on the production of high - performance and low loose density bronze powders. It is found that in scorching process, the warmth time and hearth temperatures have a great influence on the campfire effect of metal powder. In symbolic, in the duplicate glow time and fire temperature, element is particularly affected the element effect. Scintillation red tape is divided into static and activating in two ways. Static holocaust, the inferno proportion of the bronze powder is very undisturbed, and given to agglomeration; zippy bonfire is not, so the blaze effect is very good. Homologous as beneath in 5000C / 3h make, static pyre of the bronze powder activating luminosity content is 7. 5 %. The bulk density is 3. 80g / cm3. Go-getter scorching content of bronze powder oxygen is 18. 7 % and bulk density is 2. 32g / cm3.
AOR arrangement 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. Have need a higher friction material used in rigid - based products and green strength illustration products. Several well - known powder metallurgy and electric likeness enterprises have use the powders in vast - scale. It is fix that the effect is very sound.
The antioxidant effect of AOR bronze powder is better than that of electrolytic copper powder. Subservient the twin conditions, the antioxidant effect of the AOR formula bronze powder is 2 times than electrolytic copper powders. This is particularly important to manufacturers of diamond tools. Since these enterprises use a small amount bronze powder every time, forasmuch as requiring a long shelf life of the powder. Source: http: / / www. mhcmp. com