Companies plastic product more competitive

Online, December 10, 2009 (Newswire.com) - Companies plastic product is more competitive than in Asian countries, including China cheaper continue to increase their participation in world trade. To survive the competition, it is important that the injection molder to optimize the process of injection molding machine and increase productivity, reduce waste, save time and procedures.

Any form optimal time of filling. The optimal filling is similar to that less pressure is required. However, rapid rates of filling were not compromised by problems such as the gassing of the question. The combustion of the pre-merger of Air-trapping cavity occurs. Ventilation openings must be cut, the gasification occurs. If ventilation is not present, and are sufficiently large and clean, the reduction of barriers in force to help provide better ventilation and the time after the injection. But that should not be called into question because of poor ventilation - ventilation should be appropriately designed to do the work required. Optimization of filling time, probably 95% of all forms filling time should be 1.5 to 3 seconds. When is a mold, take more than 3 seconds, should be investigated. Small parts with a short length of the complete solution faster, but only some or very thick flow length of 500 mm shall be filled by more than 3 seconds. Optimization of the filling can make small savings in time, but always time to make the optimal set complete with savings elsewhere. The packing or holding time is the phase in the semi-fusion in the form will be under pressure during cooling, so that others can compensate for the melt in the form of shrinkage that occurs. With polymers such as polypropylene, this can be important for the contraction of the volume is high. The conditioning phase reduces sink marks, improves the playback of the target dies, welding and strengthened controls brightness. The door should remain the right size to open long enough to allow proper packing. A door to check on the gel to determine the exact time for the packaging.

The cooling of the piece is to be by the thickness of the wall and the polymer type and is easily determined by looking for tables or determined with precision. The packaging is about 80% of the cooling time is often less than what is being said. Cooling rate is an exponential relationship between the polymer melt temperature and time. Low interest rates permanently. Increasing the temperature at which to remove a form, reducing the cooling time for a proportion can be.

Poor cooling of the mold is usually caused by a lack of coolant. It is important to know whether the flow of coolant in each channel.

If these hours are not met, there is a lack of knowledge about the process of optimization of injection and cycle time. All parts of the movement of the tool should be speeded up slowed down and controlled in order to minimize delays and optimize the conditions. Efforts to optimize the molding cycle is rewarded with substantial cost savings and increased productivity. More production is far from optimal and productivity of most molds can be around 10-30%, improved without investment