Automotive Plastic Parts

Kunshan Tehui Plastic Mold Co.,Ltd: Your Professional Automotive Plastic Parts Supplier！

Founded in 2011, Kunshan Tehui Plastic Mold Co., Ltd is located in Kunshan, China. We have a standard factory of more than 6,500 square meters and 88 employees. Our normal annual output value is 80 million RMB, and we are a fast-growing enterprise. We have experience in manufacturing precision injection molds for export and have advanced mold development management mode.

Wide Range of Products
The company's main business is plastic mold development, manufacturing and injection molding, focusing on export plastic molds such as auto parts, air conditioners, sweepers, power tools, 3C accessories, coffee machines, etc., and its main customers are distributed in Europe, the United States, Japan and other places.

Leading Service
We have many years of industry experience and a complete production management, quality supervision and sales service operation system. If you want to buy our products, just send your needs by email and we can respond to you as soon as possible.

Complete Qualifications
We passed ISO9001/IATF16949 certification in 2011, in line with the international general automotive industry quality system.

Advanced Equipment
The company has world-leading mould processing equipment, such as five-axis linkage high-speed CNC, Taiwan high-speed CNA double-head EDM and other large-scale processing equipment, as well as more than 20 injection molding machines, CMM measurement, hardness tester, flaw detector and other equipment.

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What is Automotive Plastic Parts?

Automotive plastic parts refer to all parts and components made of plastic on a car except the frame. These parts play an important role in automobile manufacturing and are widely used due to their lightweight, corrosion resistance, and easy processing and molding.

Benefits of Automotive Plastic Parts

Lightweight
The average proportion of automobile plastic parts is only 15-20% of that of ordinary steel, and it is also lighter than ordinary wood. This feature allows the car to significantly reduce its own weight, especially for high-end large sedans. Weight reduction can help improve fuel economy and reduce emissions. In addition, due to the reduction in body weight, the energy consumption required by the car during operation will be reduced accordingly, thereby improving fuel efficiency.

Corrosion Resistance
Plastic materials have good corrosion resistance and can maintain stable performance even under harsh environmental conditions. This means that automotive plastic parts can resist corrosion from moisture, salt, chemicals, etc. and extend their service life.

Aging Resistance
Plastic materials also have good aging resistance and can resist aging caused by environmental factors such as ultraviolet rays and high temperatures, maintaining the appearance and performance of components.

Easy To Process And Form
Automotive plastic parts can be formed in one go through modern processing methods such as injection molding, extrusion, and calendering, which not only simplifies the production process, but also improves production efficiency and product quality. The plasticity of plastic materials allows them to be processed into products with complex shapes and a variety of colors. Through printing, film, embossing and other processes, the luxury and personalization of the car's appearance can be further enhanced.

Applications of Automotive Plastic Parts

Interior Trim

Interior trim is one of the important application areas of automotive plastic parts. These parts include dashboards, seats, door trims, steering wheels, pillar trims, armrests, floor guards, glove boxes, etc. Plastic interior trims have the advantages of light texture, strong plasticity, low cost, etc., while providing good touch and visual effects. For example, polypropylene (PP) is widely used in the manufacture of automotive dashboards, door trims and other parts due to its good impact resistance and easy molding.

Exterior Trim

Exterior trim is also an important application area for automotive plastic parts. These parts include bumpers, side anti-collision strips, radiator grilles, spoilers, fenders, fender linings, door handles, etc. Plastic exterior trims are not only lightweight, but also can improve the corrosion resistance, weather resistance and impact resistance of automobiles. For example, engineering plastics such as polycarbonate (PC) and polyethylene terephthalate (PET) are often used to manufacture bumpers and radiator grilles due to their excellent impact toughness and weather resistance.

Functional Structural Parts

In addition to interior and exterior parts, automotive plastic parts are also widely used in the manufacture of functional structural parts. These parts include fuel tanks, engines, and some parts on the chassis. Plastic functional structural parts are not only lightweight, but also meet the requirements of automobiles for strength, heat resistance, and chemical resistance. For example, some high-strength engineering plastics such as nylon (PA) and polyoxymethylene (POM) are used to manufacture fuel tanks and engine parts.

Electrical System Components

Many components in the automotive electrical system also use plastic materials. For example, wire insulation, battery housing, relay housing and other components are often made of plastics such as polypropylene (PP) and polyvinyl chloride (PVC). These plastic parts are not only insulating and corrosion-resistant, but also can improve the safety and reliability of the electrical system.

Examples of Automotive Plastic Parts

Auto Plating Grille Plastics Parts

Description
Auto plating grille plastics parts usually refer to plastic grille parts with electroplated appearance used on cars. These parts not only have the advantages of plastic materials such as light weight, corrosion resistance, and easy processing and molding, but also obtain unique metallic texture and high-end appearance through electroplating process.

Features

Metallic texture and high-end appearance: The electroplating process makes the surface of the plastic grille parts show a metallic-like luster and texture, giving the front of the car a more luxurious and atmospheric visual effect. This metallic texture can significantly enhance the class of a car and attract consumers' attention.
Strong corrosion resistance: The electroplating layer can effectively protect the plastic substrate from corrosion and oxidation, extending the service life of the component. This is especially important for cars, which are often exposed to harsh environmental conditions such as rain, snow, salt spray, etc., which can cause corrosion and damage to components.
Lightweight design: Compared with metal grilles, auto plating grille plastics parts have lighter weight. This lightweight design helps reduce the overall weight of the car, thereby reducing fuel consumption and emissions. In the current context of global energy conservation and emission reduction, lightweight design has become one of the important trends in automobile manufacturing.
Good weather resistance: auto plating grille plastics parts have been specially treated and have good weather resistance. They can resist the erosion of harsh environmental factors such as ultraviolet rays, high temperature, and low temperature, and maintain a long-lasting bright appearance. This is particularly important for cars that often drive in complex road and climate conditions.

Application

Intake grille body: As an important part of the front face of the vehicle, the electroplated grille body not only protects the water tank and engine, but also directly affects the overall appearance of the vehicle.
Radiator grille: The electroplated plastic parts on the radiator grille can improve the heat dissipation efficiency and enhance the visual effect.

Auto Audio Plastics Parts

Description
Auto audio plastics parts refer to the parts made of plastic materials used in car audio systems. These parts play an important role in the construction of car audio, not only carrying the functionality of the audio equipment, but also affecting the overall sound quality and durability.

Benefits

Lightweight: Plastic materials are lighter than traditional metal materials. Car audio components made of plastic can significantly reduce the overall weight of the vehicle. This not only helps improve fuel economy, but also reduces vehicle carbon emissions, meeting the requirements for energy conservation and emission reduction in modern automobile manufacturing.
Corrosion resistance: Plastic parts have excellent corrosion resistance and can resist the erosion of humidity, salt spray, chemicals and other harsh environmental factors. During the use of automobiles, audio components are often exposed to these environments, so corrosion resistance is one of its important performance indicators.
Good acoustic performance: Plastic materials have certain advantages in acoustic design. The acoustic performance of audio components can be optimized by adjusting the density, hardness and other parameters of the material. This helps improve the sound quality performance of the audio system, allowing drivers to enjoy clearer and more realistic music effects.
Excellent processing performance: Plastic materials are easy to process and shape, and can produce various complex geometric shapes. This makes the design of car audio components more flexible and diverse, able to meet the needs of different models and audio systems. At the same time, the manufacturing process of plastic parts is also relatively simple and fast, helping to reduce production costs.
Aesthetics: Plastic parts can be improved through surface treatment processes (such as spray painting, electroplating, etc.). In car audio systems, beautiful plastic parts can not only enhance the overall decorative effect of the car, but also provide drivers with a more pleasant auditory and visual experience.

Function

Protect the speaker: As the outer shell or protective cover of the speaker, the audio plastic parts can effectively protect the speaker from dust, dirt and mechanical damage, thereby maintaining the good performance and life of the speaker.
Isolate noise: Although plastic materials cannot completely isolate sound, they can reduce the propagation of sound to a certain extent, reduce noise interference, and provide passengers with a more peaceful listening environment.
Beautify the appearance: The design of car audio plastic parts often matches the overall interior style of the car. They are not only practical, but also add a touch of beauty to the car interior and enhance the overall visual effect.

Seat Belt Plastic Mould

Description
Seat belt plastic mould refers to the mold used to produce plastic parts in the seat belt system of the car. These molds are usually made of high-strength and high-wear-resistant materials, such as alloy steel or hard alloy, to ensure the durability and precision of the mold. They inject the molten plastic material into the mold cavity through injection molding, blow molding or other plastic molding processes, and demold after cooling and solidification, so as to obtain the seat belt plastic parts with the required shape, size and surface quality.

Benefits

High precision: Modern mold manufacturing technology can ensure that the precision of the mold is very high, so the seat belt plastic parts produced using seat belt plastic mold can accurately match the design requirements, including shape, size and surface quality. The precision of the mold ensures that each injection or blow molding process produces a nearly identical product, which is critical in the automotive manufacturing industry where seat belt components need to meet strict safety standards and quality control requirements.
Automated production: The use of molds makes the production process of plastic parts highly automated, reducing the need for manual operations, thereby improving production efficiency.
Fast production cycle: Compared with manual manufacturing or other methods, the use of molds can significantly shorten the production cycle, allowing manufacturers to respond to market demand or production changes more quickly.
Durability: Molds are usually made of high-strength, high-wear-resistant alloy steel or carbide to ensure their durability and long life.

Key Components

Seat belt webbing: It is usually made of high-strength synthetic fibers such as polyester, polypropylene and nylon, which can withstand a lot of tension. The length and width of the webbing are designed according to the height and body shape of the passengers to ensure that they can be effectively restrained in an emergency.
Retractor: The retractor is the core component of the seat belt system. It can keep the seat belt close to the body of the passenger, while being able to retract freely to adapt to the movement of the passenger.
Locker: The lock is used to prevent the seat belt from being too loose or rolled up in an emergency, ensuring that the seat belt can remain taut and effectively restrain the passenger.
Buckle: The buckle is the component that connects the seat belt webbing and the locker, and is used to secure the seat belt to the passenger.

Frequently Asked Questions

Q: What are automotive plastic parts ?

A: Automotive plastic parts refer to all plastic components and assemblies used in automobile manufacturing, excluding the main frame or chassis. These plastic parts play a vital role in modern vehicles, providing a range of benefits such as weight reduction, cost savings and enhanced design flexibility.

Q: What factors affect the durability of automotive plastic parts?

A: Material properties: The durability of plastic parts depends first on the properties of the material itself. Different types of plastics have different physical and chemical properties, such as density, strength, toughness, heat resistance, corrosion resistance, etc. These properties directly affect the durability of plastic parts during use. Commonly used automotive plastic materials include polypropylene (PP), polyethylene (PE), polyamide (PA), polycarbonate (PC), etc. These materials have their own advantages and disadvantages. For example, PP materials have advantages such as low density, light weight, and chemical corrosion resistance, but they also have problems such as low-temperature brittleness; PC materials have excellent light transmittance, impact resistance, and heat resistance, but the cost is relatively high.
Usage environment: Both high and low temperature environments will affect the durability of plastic parts. High temperature may cause plastics to soften, deform, or even melt; low temperature may cause plastics to become brittle and easy to break.
Processing accuracy: The accuracy of the manufacturing process directly affects the dimensional stability and performance consistency of plastic parts. The higher the processing accuracy, the better the durability of the parts.

Q: What are the advantages of automotive plastic parts?

A: Light weight: The average proportion of automobile plastic parts is only 15-20% of that of general steel, even lower than that of wood. This feature allows the car to significantly reduce body weight while maintaining the same strength and stiffness. This advantage is particularly prominent for large luxury cars, which can significantly reduce fuel consumption and improve fuel economy.
Versatility: Plastic has good insulation, anti-corrosion, wear resistance, waterproof, aging resistance and other properties, and can meet the diversified needs of automobile interior and exterior decoration parts. These properties enable plastic parts to maintain stable performance in harsh environments.
Remarkable decorative effect: Through complex modeling and color processing, plastic parts can simulate natural elements, and even enhance the luxury appearance of the car through processes such as hot stamping and film sticking. In addition, plastic parts can be processed into products with complex shapes and multiple colors at one time, providing extremely high decorative effects.
Ease of processing: The plasticity of plastic materials enables them to be formed into products of various shapes and functions through a variety of modern processing methods, such as extrusion, injection molding, molding, etc. This flexibility allows plastic parts to have a higher degree of freedom in the design and manufacturing process and can meet customization needs.
Safety: Automotive plastic products have the characteristics of elastic deformation, which can absorb a large amount of collision energy and play a buffering role, thus effectively protecting the safety of vehicles and passengers. For example, the application of plasticized dashboards, steering wheels and other components enhances vehicle collision safety.

Q: What are the disadvantages of automotive plastic parts?

A: Poor heat resistance: Plastic parts are prone to deformation, aging, or even melting in high temperature environments, which limits their application in high temperature areas such as engine compartments and exhaust systems. Long-term high temperature exposure can cause plastic parts to degrade in performance or even fail.
Limited load-bearing capacity: Compared with metal materials, plastic parts have relatively low strength and stiffness. This means that plastic parts may be more likely to deform or damage when subjected to large loads or impacts.
Vulnerable to damage: Plastic parts are prone to cracks, fractures, and other damage when impacted. This increases the risk of damage to the vehicle in accidents such as collisions.

Q: What material is automotive plastic parts made of?

A: Polycarbonate (PC) and its composite materials: It is often used to make lamps, instrument signs, sun visors, window glass, bumpers and other parts. It has excellent transparency and mechanical properties, beautiful and durable.
Polyethylene plastics: It is widely used to make fenders, shock-absorbing materials for roofs and doors, trunk mats and air ducts. It has good processing performance and chemical corrosion resistance.
Polyvinyl chloride (PVC) and its modified materials: It is often used to make interior parts such as dashboard covers, car roof linings, rear cover skins and spare tire covers, and is also used to make steering wheels, bumper covers and wire coverings. It has good weather resistance, flame retardancy and chemical stability.
Polypropylene (PP) and its composite materials: It is widely used in the manufacture of heating and ventilation systems, compartments, engine compartments and body parts. It has high strength and stiffness, as well as good heat resistance and chemical corrosion resistance.
ABS plastics: It is widely used to make rear fenders, dashboards, radio covers, air exhaust pipes and steering wheel horn covers. It has excellent impact resistance, rigidity and processing properties.

Q: What factors affect ease of use of automotive plastic parts?

A: Elasticity and toughness: The elasticity and toughness of plastic parts directly affect whether they are easy to deform or break during use. Plastic parts with good elasticity and toughness can better maintain their shape when impacted or squeezed, thereby improving the convenience of use.
Wear resistance: Plastic parts with good wear resistance are not easy to wear during long-term use, can maintain a good appearance and function, reduce the frequency of replacement, and improve user experience.
Corrosion resistance: Plastic parts need to have a certain degree of corrosion resistance to cope with various chemicals that may exist inside the car, such as lubricants, detergents, etc. Plastic parts with good corrosion resistance can reduce performance degradation or damage caused by corrosion, thereby maintaining good ease of use.
Design rationality: The design of plastic parts should comply with the principles of ergonomics, taking into account the human body structure and operating habits, to ensure that the parts are easy to grasp, easy to operate and meet the requirements of human comfort. For example, the design of parts such as steering wheels and shift levers should take into account the driver's hand size and holding habits to improve driving convenience and comfort.

Q: What is the main function of automotive plastic parts?

A: Lightweight: Plastic parts are lighter than traditional metal parts, which can significantly reduce the overall weight of the car. This not only helps improve the vehicle's fuel economy, but also reduces carbon dioxide emissions, meeting the requirements of modern automobile manufacturing for energy conservation and emission reduction.
Comfort: Plastic parts are widely used in automotive interiors, such as instrument panels, door panels, seats, etc. These components can provide a comfortable riding environment and tactile experience through reasonable design and material selection.
Beautiful appearance: Plastic parts can be made into various complex shapes and colors through injection molding, spraying and other processes to add beauty to the appearance of the car. At the same time, the corrosion resistance and weather resistance of plastic parts also help maintain the durability of the car's appearance.
Durable and reliable: Plastic parts have good wear resistance, corrosion resistance and weather resistance, and can maintain stable performance in harsh use environments. At the same time, reasonable material selection and structural design also help improve the durability and reliability of plastic parts.

Q: What are the common types of automotive plastic parts?

A: Interior parts: The dashboard and its peripheral components such as the dashboard body, decorative panels, door handles, etc. are mostly made of plastic materials such as PC/ABS, ABS, etc., which have good impact resistance and weather resistance. Seat frames, support structures under seat fabrics, and door panel interiors, etc., these parts require a certain strength and comfort, and are often made of materials such as PP and PVC.
Exterior parts: As an important safety component of the car, the bumper is usually made of reactive injection molded polyurethane (RIM PU) or reinforced PC/ABS and other materials to withstand the impact of collisions. Body panels such as side guards, fenders, door frames, etc., these parts require a flat appearance and corrosion resistance, and often use alloy materials such as PC/PBT, PC/PET.
Functional parts: Fuel tanks and fuel system components such as gasoline tanks, fuel pipes, etc., these parts need to be oil-resistant and corrosion-resistant, and are usually made of materials such as high-density polyethylene (HDPE). Cooling system components such as radiator grilles, water tanks, etc., these parts require high temperature resistance and water corrosion resistance, and often use reinforced PA6, PA66 and other materials.
Electrical components: Wire sheaths are used to protect wires and cables from wear and corrosion, and are often made of materials such as PVC and thermosetting low-foaming PVC. Electrical component housings such as fuse boxes and circuit breaker housings require good insulation and high temperature resistance, and are often made of materials such as PBT and POM.

Q: How to maintain automotive plastic parts to ensure its normal operation?

A: Use mild detergent: You can use mild detergent and soft cloth to wipe the surface of plastic parts to remove dirt and stains. Avoid using harsh chemical cleaners or rough brushes to avoid scratching the plastic surface.
Protection and maintenance: You can use protective agents or waxing products specially made for automotive plastic parts, and apply them to the surface of plastic parts regularly to form a protective film to reduce the damage to plastic caused by ultraviolet rays and daily use.
Avoid exposure to the sun: You should try to avoid exposing your car to the sun for a long time, because ultraviolet rays will accelerate the aging of plastic. You can choose to park in a shaded place or use a car cover to block the sun.

Q: How to store automotive plastic parts?

A: Packaging: Choose appropriate packaging materials such as cartons, wooden boxes, plastic pallets, etc. according to the shape, size and weight of the parts. The packaging materials should have sufficient strength and stability to protect the parts from damage during transportation and storage. At the same time, the name, specification, quantity and other information of the parts should be marked on the packaging for easy management and identification.
Storage: Classify and store the parts on different shelves or areas for easy access and management. For fragile or deformable parts, special containers or shelves should be used for fixed placement to ensure their stability and safety. At the same time, avoid placing the parts directly on the ground to prevent moisture and damage.
Inspection: Regularly inspect the stored automotive plastic parts to check for deformation, aging, damage or rust. Problems found should be dealt with in a timely manner, such as replacing damaged parts and repairing deformed parts.

We're professional automotive plastic parts manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade automotive plastic parts at low price from our factory.

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