A high density, for the teeth and tongue than large mold test, the first bar must be 150-200mm short aluminum rod or pure aluminum rod. Two, before the trial mode, you must adjust the extrusion center, extrusion axis, spindle tube and die base out of the material in a center line. Three, in the test mode and the normal production process, the aluminum rod heating temperature to ensure that between 480-520. To ensure uniform mold core temperature and external temperature, die temperature according to the conventional mold temperature control at about 480 DEG C, diameter of 200mm below the flat die holding time shall not be less than 2 hours, if the porthole die insulation in 3 hours or more; diameter greater than 200mm above the mold insulation 4-6 hours. Five, before the test mode or production must with cylinder cleaning pad clean Sheng spindle cylinder liner, and view the extrusion machine operation is normal or not.

Six, trial production mode or the beginning, turn off the automatic machine extrusion, each switch is zero. From the minimum pressure began to slowly from the pressure, the material is about 3-5 minutes, aluminum filling process is mainly controlled by good pressure. Pressure control in 100Kg/cm2, the current meter data is less than 2-3A, the general 80-120Kg/cm2 can be expected, after which can be slowly accelerated, the normal production pressure to pressure less than 120Kg/cm2. Seven, the mold in the test or production process, such as the discovery of blocking, partial tooth, the speed deviation is too large and so on, should immediately stop, and in order to point out the way to remove the mold, avoid die.

Eight, in the test mode or in the production process, the outlet must be smooth, cushion or fixture according to the discharging situation of the slack. At any time to observe the abnormal situation, timely treatment, the stop should be immediately shut down. Nine, straightening process, to be carefully detected before and after the change, the operating norms, the appropriate force, and strictly protect the quality of products. Ten, in accordance with the production planning requirements of a reasonable scale, sawing, the saw tooth feed speed can not be too fast, to avoid injuring the end, the end must be pliers, remove the fly edge and burr. Eleven, the basket should be standardized, including the pad to be placed reasonable, to avoid damage to the section. Twelve, profile aging temperature control at 190 + 5 degrees, heat insulation 2.5-4 hours, after the cooling.