Features of light guide plate manufacturers for injection molding product process

  The most outstanding feature is that the product is ultra-thin thin light guide plate, the plastic is more easily cured into the mold cavity corresponding to the filling, therefore, the most significant feature of light guide plate injection molding thin is a high-speed filling, either in injection molding as the entire mold cavity will be said plastic has not yet fully or completely cured in the mold cavity, and the product occurs before the feeding process is filled, the pressure can reach the end of filling the product so that the product does not shrink

  The temperature setting is very important in injection molding, the screw temperature is set depending on the melt temperature, screw speed, back pressure, injection volume and injection production cycle. Nanometer light guide plate in the light guide plate injection molding directly into the light guide plate inside a transparent particle material with scattering function, through reasonable adjustment of the concentration of transparent particles to achieve effective control of the light, and finally achieve a high degree of uniformity of light. Due to the doping process is not easy to precisely control, so the injection method is suitable for the production of small and medium-sized light guide plate, for the large size of the light guide plate will appear uneven light problems. Automotive LOGO guide plate combined with different acrylic materials, different ways of use, both uniform and unified laser dot layout, but also according to different specifications and ways of use, do different sizes of dot layout. To do a perfect unity of common use and specificity. Lighting light guide plate through a variety of sparse, different sizes of light guide points, can make the light guide plate uniform light. The use of reflective sheet is to reflect the light exposed on the bottom back into the light guide plate, used to improve the use of light efficiency; the same area luminous brightness, high luminous efficiency, low power consumption. Single-sided microstructure array light guide plate generally uses the extrusion molding process. Ultra-thin light guide plate needs a high mobility, so the temperature can be set as well as the corresponding requirements are high, but should not be too high, otherwise yellowing phenomenon will occur, and the temperature of the first zone to set the business needs to cost a lower value, which will effectively prevent premature melting and shunting of Chinese plastic.

  Injection working pressure This is a pressure that causes the flow of Chinese plastic enterprises, which can be measured by different sensors. It does not carry a fixed value, but increases with the increasing difficulty of filling the mold. During the filling development phase of the molding cycle, we need to use high injection pressure to maintain the molding speed at the required management level. Once the mold has been filled, it no longer requires high pressure on its own.

  During the filling phase of the injection cycle, a high injection pressure is required to maintain the injection speed at the required level... After the mold is filled, it enters the holding phase, when the screw pushes additional plastic to compensate for plastic shrinkage. This can be done at a lower pressure

  This refers to the development speed of the mold filling when the screw can be used as a punch. Injection molding of ultra-thin light guide must be done by using a high injection speed in order to completely fill the mold when the melt is not solidified. When conditions permit, the filling is done by using a multi-pole injection as much as possible, avoiding defects such as the student's impact injection or trapped air.