Thick sheet blister automotive parts applications

Thick sheet blister automotive parts applications

Vacuum blister molding is one of the most commonly used molding methods for plastic packaging containers. Thick sheet blister is a secondary forming technology which takes thermoplastic sheet as forming object. In foreign countries, vacuum molding is an old molding process, due to continuous development and change, has been highly automated, mechanized, and do not have any waste material generation, 100% raw and auxiliary materials into products, full line production of molding system engineering.

In the blister process, according to the shape of raw materials (sheet or coil), it can be divided into thick wall and thin wall two categories. Thick wall blister means that the thickness of the raw material used is more than 2mm, which can not be blister formed on the automatic machine, and must be processed and produced by the semi-automatic blister forming machine dedicated to the thick sheet metal.

Thick sheet blister products generally have the characteristics of large area, large height and thick material. The production method of thick wall blister and thin wall blister products is similar, which is mainly based on vacuum blister mold. Most of these plastic products are widely used in automotive interior and exterior decoration, transportation, building materials, packaging, medical equipment, household appliances, cultural education bathroom, sporting goods and other areas of People's Daily life.

The principle of thick sheet blister processing is basically the same as the conventional blister process, the plastic sheet is cut into a certain size and heated to soften, and the pressure difference or mechanical pressure on both sides of the sheet is used to make it deform and pasted on the specific mold outline surface, after cooling and shaping, and the required products are trimmed.

For thick sheet blister commonly used raw materials sheet mainly HDPE, ABS, ABS+TPU, etc., the following is a brief introduction to the basic characteristics of these three materials.

(1) HDPE (high-density polyethylene) material: it has good heat resistance, cold resistance, chemical stability, high rigidity, toughness and excellent resistance to environmental stress cracking. Main uses: 200 liter bucket, fuel tank, pallet, large parts, yachts, blister tray cover, most of the auto parts of the special packaging.

(2) ABS (acrylonitrile-butadiene-styrene plastic) material: it has good impact resistance, heat resistance, low temperature resistance, chemical resistance and excellent electrical properties, compared with HDPE has easy formation, product size stability, good surface luster, better bearing and compressive performance. HDPE has more advantages in low temperature resistance, toughness and resistance to environmental stress cracking. Main applications: Widely used in automotive, electronic and electrical, office and communication equipment and other fields. In the field of packaging, it is mainly used in the robot automatic pickup project with high dimensional accuracy requirements for packaging.

(3) ABS+TPU (thermoplastic polyurethane) material: It has a special co-extrusion process in the ABS plate process to make the surface of the ABS plate covered with a layer of TPU film plate. The products made of this material have not only the excellent mechanical properties of ABS but also the high wear resistance and tear resistance of TPU. The cost of this material is 2 to 3 times that of ordinary materials. Because of the high cost, the application of such materials is limited. When the material is often subjected to friction, scraping, grinding and other mechanical effects during use, it will cause its surface to gradually wear, so the wear resistance of the material is very important. TPU plastic raw materials excellent wear resistance, more than five times the wear resistance of natural rubber, is one of the materials of wear-resistant products, generally speaking, TPU has a high tear resistance, tear strength and some commonly used plastics are very excellent. Main application: Mainly used in automotive interior parts. In the field of packaging, it is mainly used for parts with high cleanliness requirements, such as engine, transmission and other power system parts packaging.

From the above three material characteristics can be seen, thick sheet blister products are very suitable for the automotive industry many Ovens and parts packaging, the following through several case introduction and analysis to elaborate thick sheet blister packaging products in the automotive parts industry application.

The auto parts industry has its unique commercial characteristics, shape complexity, and because of the characteristics of the automobile industry; Its packaging requirements and methods and other industrial products have different characteristics and characteristics. Coupled with the characteristics of the automotive industry supply chain, it is precisely because of these characteristics that the automotive industry and its parts production enterprises are mainly divided into three types in the use of packaging: one-time transportation packaging, turnover transportation packaging, and factory turnover packaging equipment. Turnover transportation packaging is mainly used for the circulation and turnover transportation of materials between enterprises at various supply chain levels, because it can greatly reduce the use of disposable packaging, which will reduce the total cost of transportation packaging in the long run. The case of thick sheet blister packaging is mainly used in the field of turnover transportation packaging.