Hot melt glues are the most environmentally friendly and suitable for high-speed automatic assembly line operations. With the improvement of the automatic control level of the production system of automobile companies, the automobile industry technology needs to use a large number of adhesives that can be quickly bonded, but also suitable for high-speed automated product production and environmentally friendly. The ability of glue to be used in the automobile industry is more and more widely used, and the amount of use is also increasing year by year. It has become an irreplaceable kind of glue in the automobile industry system. The reason for this trend is determined by the characteristics of the Hot melt glue itself.
Hot melt glue features:
1. The curing speed is fast, and it can adapt to the production and use of modern high-speed assembly lines.
2. There are a wide range of bonding materials. Automobiles are mainly composed of metal and non-metal parts that companies have studied in large quantities. Hot melt glues are suitable for the bonding of such technical products. Such as ABS, PP, PE, felt, etc., which require a lot of capital to be used in automobiles.
3. The construction is convenient, and the Hot melt glue can be applied in a variety of ways, such as spraying, rolling, scraping, etc.
4. The solid content of Hot melt glue is 100%, which is convenient for storage, energy saving, environmental protection, non-toxic, and will not cause secondary pollution to the environment.
5. In a modern society with limited resources, many auto companies are already considering the recycling of resources after the car is scrapped when producing cars. Hot melt glue can be melted again, which is very convenient when cars are recycled and dismantled.
Cars are made up of thousands of parts, many of which are glued together with hot melt glue, here are some of the more common ones:
1. Headlights, the traditional method is to use perforated rubber seals, which are sealed by screw clamps. After changing to Hot melt glues, they can be quickly sealed, which at the same time reduces the cost of the production of seals and facilitates automated manufacturing. The main types of hot melt type and rubber type APAO and PUR type, need to have good heat resistance, high adhesion strength to glass substrate, vibration resistance.
2. In the past, we used mechanical design methods for the fixed connection of the dashboard, ventilation ducts, interior fixing buckles, etc., which was not only time-consuming and labor-intensive, but also had low work efficiency and poor performance of the sealing system. After the use of Hot melt glue, the production management efficiency and product service quality of the enterprise have been greatly improved. Mainly through the use of temperature-resistant hot melt glue sticks, there are EVA and polyolefin types.
3. The roof of the car is a composite plastic sheet, which is sealed with a hot-melt film and powder, and the hot-melt adhesive base material is PE and EVA.
4. Auto production door panels, Hot melt glue bonding used in the assembly process of auto door panels, mainly including PP parts bonding, audio and wire harness fixing. Commonly used temperature-resistant hot melt glue sticks.
5. Car carpets and floor insulation pads, luggage buckles, etc. This is where Hot melt glues are most commonly used in cars. The types of Hot melt glues used are rubber blocks, rubber granules and rubber sticks. The types of pressure-sensitive adhesives are mostly EVA rubber particles and glue sticks. These Hot melt glues feature long open times, easy assembly and assembly of large parts, good heat resistance, and low odor.
6. Fix the car wiring harness. There are various electronic components in the car, so there are a lot of wires. If you want to achieve the neatness of the vehicle wiring, you need to fix it, and the wiring harness cannot be fixed with the same home decoration wire pipe, so Fastening with hot melt glue is a much more time-saving and efficient way.