With the advent of electric vehicles, driverless technology and the era of new energy vehicles, automobile lightweight design will be the inevitable trend of automobile design, and it is plastic that can turn automobile lightweight design into reality. A large number of plastics are used in the automotive industry, which will bring a new historical opportunity to the plastic industry and automotive injection mold industry.
Interior and exterior decoration composition
1. Automobile interior trim instrument panel assembly
It mainly includes main instrument panel assembly, instrument panel pipe beam assembly and auxiliary instrument panel assembly.
Proportion of automobile injection mold in interior and exterior decoration
Behind the rapid development of automobile industry is the development of automobile mould industry. Especially in recent years, the development of the world automobile mold industry is changing with each passing day, and the demand for molds is also increasing. In a new car, about 500 sets of automobile injection molds are required. In the developed countries of automobile industry, the market share of automobile products has exceeded 60%, and this trend is still rising. It can be said that injection mold accounts for the largest proportion in automobile mold, and its importance is self-evident.
Advanced technology of injection mold for automobile interior and exterior decoration
There is no essential difference between automobile injection mold and other injection molds, but it also has many characteristics of its own. Because the added value of automobile injection mold is generally high, many advanced technologies (such as sequence valve hot runner control technology, internal parting surface technology, low-pressure injection technology, etc.) have been developed and applied in automobile injection mold.
1. Sequence valve hot runner control technology (SVG Technology)
Sequence valve hot runner control technology (SVG Technology) is a new stage controlled hot runner technology. It solves the problem of appearance defects of traditional multi-point synchronous glue feeding products by controlling the glue feeding in sequence through the oil cylinder. It can effectively avoid the defects such as weld marks and cavitation of automobile interior and exterior trim parts, reduce the flow length and reduce the forming pressure, and plays a great role in automobile interior and exterior trim parts with strict appearance requirements.
2. Low pressure double-layer injection mold technology
The so-called low-pressure double-layer injection mold, also referred to as low-pressure injection mold, is a new type of injection mold technology, which directly injects the traditional parts that rely on manual coating and vacuum adsorption of female mold and male mold in the mold at one time. The main principle of low-pressure injection mold is: the injection pressure is low, and the plastic flows on the cloth. When opening the mold, first hang the cloth on the hanging needle of the front mold, then close the mold, inject plastic, and finally take the part. The products produced by this technology have a special layer of soft cloth on the surface, which greatly improves the decoration, feel and beauty. Therefore, low-pressure injection mold technology is widely used in medium and high-grade automobiles, generally used in automobile map bag skeleton, automobile ABC column and other parts.
