Injection molding process presumably we
have heard of, it is to have a certain shape of the model, through the pressure
of the molten state of the colloid into the cavity and molding. The process
also has a wide range of applications in the manufacture of metal parts for
injection molding. In fact, parts of the molding process is affected by a lot of
factors. The following ZCMIM will be described in detail.
The temperature of the mold and the barrel
has an important influence on the injection molding process. The lower the mold
temperature, the faster the cooling rate, the melt temperature decreases more
rapidly, resulting in increased melt viscosity, injection pressure loss
increased, and even lead to a serious shortage of mold filling. In addition,
the proper choice of barrel temperature is related to the quality of plastic.
In view of this, we'd better control the nozzle of the highest temperature
slightly lower than barrel the highest temperature, to prevent the melt in the
nozzle occurred casting phenomenon.
The injection speed injection speed, it is
mainly in the cavity Nader effect of melt flow behavior. With the increase of
injection rate, the melt flow rate increases, the shear effect of the melt
temperature increases, the viscosity decreases, so it is good for filling the
mold. Moreover, in the whole injection molding cycle, the injection speed and
cooling time have a decisive influence on the performance of the product.
The above two points are the main factors
that affect the injection molding process, we can according to the situation of
the injection process to adjust the system, in order to ensure that the quality
of the injection process.
