Grandshine

The 5G era is approaching. Mobile phone shell material from plastic to metal and non-metal material cycle, plastic because of the low cost, favored by the low-end market The evolution from the IML to the IMT process has made plastics more useful , which can approach the 3D optical texture of the simulated glass back cover, and has become the choice of many CMF designers. LDS has been widely used in plastic rear case antennas in the 4G era, but whether it can be adapted to the high-end curved glass 3D back cover of the 5G era needs to continue to be developed. IMT technology can be further extended to IME technology, which integrates electrical and decorative functions and is applied to the intelligent surface of future cars. Injection molded transparent PC back cover, as a lower cost and more efficient product form, with better impact strength and durability, is attracting more and more attention from traditional plastic factories. 1.LDS technology The principle of LDS techno...

The structure of the hot runner mold is generally the same as that of the thin nozzle. The biggest difference is that the runner is located in one or more hot runner plates and hot nozzles with constant temperature. There is no cold material demoulding, the runner and gate are directly on the product. Therefore, the runner does not need to be demolded. This system is also known as the nozzleless system, which can save raw materials. It is suitable for the product that the raw materials are expensive and the product requirements are high. Hot runner system, also known as hot sprue system, is mainly composed of hot runner sleeve, hot runner plate and temperature control electric box. There are two types of hot runner system: single point hot sprue and multi-point hot sprue. Single-point hot sprue is to use a single hot sprue sleeve to inject molten plastic into the cavity directly. It is suitable for plastic molds with single-cavity and single-gate; multi-point hot-gate ...

First, injection mold 1. If the mold cavity is not processed well, if there are scars, micro holes, wear, roughness, etc., it will inevitably reflect on the plastic part, making the plastic part poor in gloss. In this regard, the mold must be carefully processed to make the surface of the cavity Small roughness, polishing chrome plating if necessary.  2. If the surface of the cavity has oil stains, water stains, or too much release agent, the surface of the plastic part will be dark and dull. In this regard, you should remove the oil stains and water stains in time, and limit the use of mold release agents. 3. If the demolding angle of the plastic part is too small, it is difficult to demold, or the force is too large during demolding, so that the surface gloss of the plastic part is the best. In this regard, the demolding angle of the plastic part should be increased. 4. If the mold exhaust is poor, too much gas stays in the mold, which also causes poor gloss. For this,...