What is the radiator extrusion process?
Article Source: SHENZHEN SITEMPO TECHNOLOGY CO., LTD.Popularity：245Issuing time:2017-08-10 10:59:59【smallinBig】
1, for high density teeth and tongue than the mold test mode, the
first aluminum rod must be 150-200mm short aluminum rods or pure
aluminum rods.
2, before the test mode, you must adjust the extrusion center,
squeeze the shaft, Sheng Dong tube and die base outlet in a center line.
3, in the test mode and the normal production process, aluminum rod heating temperature to ensure that between 480-520 ℃.
4,
the mold heating temperature according to the conventional mold
temperature, control at 480 ℃ or so, the diameter of 200mm below the
flat mold holding time of not less than 2 hours, if the shunt mold
insulation in more than 3 hours; diameter greater than 200mm above the
mold insulation 4-6 Hour to ensure that the mold core temperature and external temperature uniformity.
5, in the test mode or before production, you must use a clear
cylinder pad to clean up the drum barrel, and see whether the normal
operation of the extruder empty.
Six, try or start production, the extruder automatically shut down, each switch to zero. From
the minimum pressure began slowly from the pressure, the material about
3-5 minutes, the aluminum filling process to control the main pressure. Pressure control in the 100Kg / cm2 or less, the ammeter data within
2-3A, generally 80-120Kg / cm2 can be expected before, can be slowly
accelerated, the normal production of extrusion pressure to less than
120 Kg / cm2 pressure.
7, mold in the test or production process, such as the discovery of
blocking, partial teeth, such as the speed of deviation is too large to
immediately stop, and point off the way unloading, to avoid die
scrapped.
8,
in the test mode or production process, the outlet must be smooth, pad
or clamp material according to the expected reasonable grasp of the
situation. At any time to observe the abnormal situation, timely processing, the downtime to immediately stop.
9, straightening process, we must carefully check before and after the
change, the operation of norms, moderate force, strict product quality.
10, in accordance with the requirements of the production schedule
reasonable length, sawing, the sawtooth feeding speed can not be too
fast, to avoid injury to the end, the end must be clamped, remove the
flash and burr.
11, loaded baskets to regulate, including the pad to be placed reasonable, to avoid damage profiles.
12, profile aging temperature control in the 190 ± 5 ℃, insulation 2.5-4 hours, baked after the air-cooled.
