Production process of insert radiator
With the rapid development of science and technology, as an important branch of Chicco's current radiator manufacturer, insert radiator has a very large market. In addition, the fin radiator does not have a bare leaking liner pipe required for assembly, and the overall strength is high, and it will not deform and leak due to careless installation. The performance is also relatively good, therefore, the insert radiator has become one of the mainstream radiators.
For high-density tooth-to-tongue mold trials, the first aluminum rod must be a short aluminum rod or pure aluminum rod of 150-200mm.
Before trying the mold, the extrusion center must be adjusted so that the extrusion shaft, the ingot barrel and the outlet of the mold base are on the same centerline.
The mold heating temperature is controlled at about 480℃ according to the conventional mold temperature. The heat preservation time of flat molds with a diameter of 200mm or less shall not be less than 2 hours. If it is a split mold, the heat preservation time shall be more than 3 hours; molds with a diameter greater than 200mm shall be kept for 4-6 hours. To ensure the uniformity of the mold core temperature and the external temperature.
Before mold trial or production, the inner container of the ingot barrel must be cleaned with a cylinder cleaning gasket, and the dry running of the extruder must be checked.
When the mold is tried or the production is just started, the automatic gear of the extruder is turned off, and the switches of each section are reset to zero. Start slowly from the minimum pressure, and discharge the material for about 3-5 minutes. The pressure is mainly controlled during the aluminum filling process. The pressure is controlled within 100Kg/cm2, and the ammeter data is within 2-3A. Generally, 80-120Kg/cm2 can be discharged, and then it can be slowly accelerated. In normal production, the extrusion speed should be less than 120Kg/cm2.
In the mold trial or production process, if the mold is blocked, the partial tooth, the speed deviation is too large, etc., the mold should be stopped immediately, and the mold should be removed in a point-retract manner to avoid the mold being scrapped.