To achieve the physical properties of aluminum rods, it is necessary to achieve the physical properties of metals: select the appropriate aluminum alloy and its type, select the appropriate quenching (cooling) method, apply the appropriate aging temperature and control the aging time. Yield Yield is another factor in production efficiency. Important indicator: 100% yield is theoretically impossible to achieve because the extrusion cutting head (Butts) and the material cut off due to the clamping marks of the tractor and the stretching machine are inevitable.
In addition to the scraps, bruises, pre-production samples, mold change test machines, etc. that occur during aluminum bar extrusion, the general yield rate can only reach about 85%. Domestic extrusion plants in China can generally only reach 70% - 75% yield.
Aluminum rod production efficiency. The main production efficiency indicators of profile extrusion include: Extrusion press utilization rate: the ratio of the actual output of the extrusion press to the designed production capacity, extrusion press yield, per capita output per unit time, internal scrap rate, return rate, Number and time of downtime.