Plastic Blow Molding
Hollow blow molding is one of the main technologies for plastic blow molding. Whether it is extrusion blow molding, injection molding or stretch blow molding, the products produced have the common feature of high quality and high precision, which is suitable for the manufacturing of large and complex products.
Automobile Air Duct Blow Mold Tooling Inc
After plasticizing the plastic raw materials, Blow Mold Tooling Inc. introduces compressed air to blow molding and expand the plastic parts, which are tightly attached to the mold wall. After cooling and solidification, they form a hollow-shaped part. Mold companies using plastic blow molding technology to manufacture automotive duct materials have high utilization rates, strong customizability, strong sealing, and no air leakage issues, occupying a very important position in the automotive industry.
The Advantages of Plastic Air Ducts
The selection of materials for manufacturing automotive air ducts is crucial for Blow Mold Tooling Inc. Some car duct manufacturers choose to use steel for manufacturing, but generally, the quality and cost are relatively high. The advantages of using plastic for automotive air duct manufacturing are particularly prominent for Blow Mold Tooling Inc., such as:
- Convenient Installation and Maintenance: The connection method of automotive plastic air ducts is flexible. Blow mold tooling Inc. can choose bonding, welding, or quick connectors according to customer needs. This flexible and diverse connection selection makes the installation process faster and the subsequent operation process faster. In addition, the inner wall of plastic air ducts is relatively smooth, less prone to dust accumulation, and easier to clean and maintain.
- Lightweight Production: The plastic chosen by Blow Mold Tooling Inc. for manufacturing automotive air ducts has a lower density and lighter weight, and the most prominent feature compared to traditional metal air ducts is that it is more lightweight.
- Sound Insulation: Plastic air ducts can absorb noise to a certain extent, achieve sound insulation effect, and reduce noise pollution. Compared to metal, plastic air ducts can provide a more comfortable interior environment.
- Excellent Chemical Properties: According to the actual processing situation, Blow Mold Tooling Inc. usually chooses polyvinyl chloride and polypropylene as raw materials. These two raw materials have excellent chemical properties and can resist the erosion of various solutions such as strong acids, strong alkalis, and inorganic salts, making plastic ducts suitable for use in various extreme environments and improving the durability of components.
- Antibacterial: The plastic air ducts manufactured by Blow Mold Tooling Inc. have a smooth surface, which makes it not easy to breed bacteria and mold. Moreover, the plastic has a certain inhibitory effect on the growth of mold. This design can improve the air quality inside the car and enhance comfort.
- High Cost-effectiveness: Compared to metal ducts, plastic ducts have lower production and installation costs. In addition, the material price of plastic air ducts is relatively stable and not easily affected by market fluctuations, with good cost control ability.
- Insulation: Plastic car air ducts can to some extent block the conduction of heat (compared to metal air ducts) and have good insulation performance. The advantage of this is that it can reduce heat loss and improve energy utilization efficiency.
Blown Molding Materials for Automotive Air Ducts
Automobile air duct blow mold Tooling Inc. generally chooses to use polyvinyl chloride (PVC) and polypropylene (PP) for processing, and the characteristics and advantages of these two materials are very prominent.
1.Polyvinyl Chloride (PVC)
The polyvinyl chloride raw material is slightly yellow and semi-transparent, with a luster, and its transparency is higher than polypropylene. Depending on the amount of additives used by Blow Mold Tooling Inc., they can be divided into soft and hard polyvinyl chloride. Soft polyvinyl chloride is soft and tough, with a slightly sticky feel. Hard polyvinyl chloride has a higher hardness, but not as high as polypropylene, and white creases may appear after bending. This material is relatively stable, with excellent chemical properties and strong heat resistance. The air ducts manufactured by Blow Mold Tooling Inc. using polyvinyl chloride have good air tightness and are not prone to leakage. When used as air conditioning ventilation ducts, they have good cooling effects and bring excellent comfort performance. In addition, polyvinyl chloride has moisture-proof and flame-retardant properties, Increasing the reliability and safety performance of automotive ducts. Even in complex and ever-changing situations, polyvinyl chloride ducts can maintain good performance and are not prone to aging. The above advantages make polyvinyl chloride the preferred solution for blow mold tooling Inc. air ducts.
2.Polypropylene (PP)
Polypropylene is a thermoplastic formed by polymerization, which is white in wax shape, transparent in appearance, and lightweight. The air ducts manufactured by Blow Mold Tooling Inc. using polypropylene have the characteristics of easy installation, low noise, and fire resistance. Polypropylene automotive air ducts are not easily damaged even when working in humid or high-temperature environments for a long time, with strong lifespan and durability; In addition, polypropylene materials are not easily combustible and do not produce toxic gases, providing a high level of environmental protection. Using polypropylene blow molded air ducts in high friction environments is less likely to generate static electricity and has a lower likelihood of explosion. Moreover, the maintenance cost of polypropylene air ducts is relatively low, with low maintenance requirements and simple methods. So, the advantages of polypropylene blow molding in air ducts are obvious, making PP material an indispensable material in the automotive manufacturing industry, promoting the technological development and innovation of blow mold tooling Inc.
In addition, Blow Mold Tooling Inc. will focus on considering customer needs and the usage environment of cars, comprehensively considering the selection of plastic materials, and providing better plastic blow molding services.
Quality Control of Automotive Air Ducts
The Automotive Air Duct Blow Mold Tooling Inc. must ensure that the quality of the automotive air duct meets the requirements, whether it is in the early stage of design and processing or subsequent processing. The automotive industry has very high requirements for quality. So quality control is crucial.
- Material Control
The main materials for automotive air ducts are metals, plastics, or fiberglass, each with its own specific physical and chemical properties. When selecting materials for Blow Mold Tooling Inc., they need to choose based on actual engineering needs and environmental conditions to ensure that the quality of the selected materials meets the relevant processing standards. For example, the selected metal material should meet high corrosion resistance and thermal conductivity, plastic material should have a low friction coefficient, electrical insulation performance, and airtightness, and glass fiber material should have high-temperature resistance and chemical stability. At present, in the production of automotive air ducts, blow molding mold manufacturers often use plastic as the raw material.
- Production Process Control
The general processing process of automotive air ducts mainly Includes cutting, bending, welding, and polishing, and each step requires strict quality control (some steps of plastic air ducts can be ignored). For example, during the cutting process of metal air ducts, it is necessary to ensure that the Incision is flat and vertical, and when bending, it should be uniform without any breakage. The welding process should ensure the tightness of the weld seam, and the polishing process should ensure the smoothness and brightness of the surface. The plastic air ducts manufactured by Blow Mold Tooling Inc. need to ensure their mechanical and chemical properties. In addition, for different types, specifications, and materials of air ducts, corresponding production process flow and control parameters should be developed according to the actual situation.
- Size and Shape Control
The size and shape of plastic air ducts in cars determine the effectiveness of air transportation and the energy consumption of buildings. Therefore, blow mold tooling Inc. needs to strictly control the size and shape of air ducts during the processing. Firstly, it is necessary to regularly inspect the processing equipment for damage to ensure its accuracy. Secondly, it is necessary to check whether the blow-molded air duct components meet the requirements for use. For complex-shaped ducts, a combination of multiple blow molding molds can be used for processing.
- Inspection and Testing
After the completion of automobile air duct processing, Blow Mold Tooling Inc. needs to conduct strict quality inspection and testing to ensure that its performance meets the standards. Firstly, the appearance quality of the air duct should be checked for any seams, scratches, or deformations; Next, a pressure test to verify the airtightness and durability of the air duct; The most crucial step is to conduct aerodynamic performance testing to check the air delivery effect of the air duct; Finally, corrosion resistance testing should be conducted to ensure that plastic ducts can operate for extended periods even in extreme situations.
- Environment and Personnel Control
In addition to controlling the above key points, Blow Mold Tooling Inc. also needs to evaluate the environment and personnel quality. The blow molding mold company first needs to establish a good operating environment and personnel training system, maintain the cleanliness and hygiene of the workshop, and prevent environmental pollution from affecting product quality. Strengthen personnel training, improve overall quality, and ensure that personnel can work by the regulations.
Automobile Blow Mold Tooling Inc. has extremely high requirements for the manufacturing of air ducts, as automotive component manufacturing itself is an industry with extremely high precision requirements.
Related News
Applied’s expertise in modifying materials at atomic levels and on an ihdustrial scaleenables our customers to transform possibilities into reality.
