Scooter plastic body parts moulding

In addition, our company has established cooperative relationships with plastic raw material suppliers, printing manufacturers, etc. to ensure the supply of raw materials and printing quality. Through our rich experience and perfect supply chain, our company can provide customers with high-quality customized scooter plastic body parts moulding products to meet their specific needs. At the same time, we have 10 years of professional foreign trade service experience, understand the foreign trade process, and better serve our customers. For scooter plastic body parts moulding products, we can make corresponding plastic parts, which is mainly done through injection molds.

The injection molding of plastic body parts for scooters (typically including the base plate, body cover, mudguard, etc.) is a process with high requirements for structural strength, impact resistance, and appearance quality.

The following is the detailed process and key points of injection molding for plastic body parts of scooters.

The entire process of injection molding for plastic body parts of scooters

Phase One: Design & Material Selection

This is the foundation for ensuring the safety and durability of vehicle body parts.

Key points of structural design

Uniform wall thickness: Basic requirement, usually the main body wall thickness is 2.5-3.5mm, to prevent shrinkage and warping.

Reinforcing rib design: The soul. The reinforcing ribs must be scientifically arranged (following the principle of "60% thickness") to achieve maximum rigidity with the least weight and ensure the load-bearing capacity and anti-stepping ability.

Installation points and clips: Design reliable installation columns, screw columns and clips to ensure a firm assembly with the frame and other components.

DFM (Design and Manufacturing Feasibility Analysis) : Analyze the draft Angle, parting line, and gate position to avoid production risks in advance.

Material selection

Preferred materials

PP (polypropylene) : The most commonly used. Low cost, good toughness, flexing resistance (preventing breakage), and light weight. Impact copolymer PP or PP+EPDM (toughened) is usually used.

ABS: It has higher strength, a harder surface and better gloss, and is used in mid-to-high-end vehicle models. However, its cost is higher than that of PP, and its weather resistance is slightly worse.

Reinforcing materials: For components that require extremely high strength, glass fiber reinforced plastics (such as PA+GF, PP+GF) can be used, but this will cause greater wear and tear on the mold.

Additive: UV stabilizer must be added to prevent aging, brittleness and fading during outdoor use. Add color masterbatches to give colors.

Phase Two: Mold Design & Manufacturing

Body parts molds are usually large molds.

Large mold bases and processing: Large gantry CNC is required for mold core processing.

Hot Runner system: Essential. Adopting multi-point hot nozzles for glue injection, balanced filling, reducing flow length and internal stress, and saving raw materials.

Cooling system: The key point. It is necessary to design efficient and uniform cooling waterways, especially in areas with dense reinforcing ribs, to prevent severe deformation caused by uneven cooling.

Exhaust system: Sufficient exhaust slots are provided at the end of the melt to prevent charring and material shortage.

Slider mechanism: It is used to handle the inverted structures such as holes and grooves on the side of the vehicle body.

High polishing/etching: The surface of the appearance parts needs to undergo etching treatment (such as leather texture, orange peel texture), which can not only enhance the texture but also effectively hide scratches and weld marks.

Phase Three: Injection Molding Process

The core of the process lies in ensuring strength and controlling deformation.

Material treatment: PP/ABS must be dried at 80-85℃ for 2-4 hours.

Injection molding machine: A large-tonnage injection molding machine is required (depending on the projected area).

Core process

Mold temperature: A moderately high mold temperature (PP: 40-60℃, ABS: 60-80℃) is adopted, which helps to reduce internal stress and improve appearance.

Injection speed: Medium speed injection is adopted. Too fast can easily lead to high internal stress, while too slow may result in insufficient filling.

Pressure retention: This is the key to controlling shrinkage. Apply sufficient holding pressure and time to compensate for shrinkage, especially at the junction of the reinforcing ribs and the main body, to prevent depression.

Cooling time: It must be sufficient to ensure that the parts are fully set before being ejected to prevent deformation.

Phase Four: Post-Processing & QC

Post-processing

Gate removal: Automatically completed by the mechanical hand.

Annealing treatment (if necessary) : For components with significant internal stress or extremely high dimensional accuracy requirements, annealing treatment can be carried out to eliminate stress and reduce deformation.

** rigorous quality inspection ** :

Dimensional inspection: Use calipers and three-coordinate measuring machines to inspect the spacing of key installation holes, flatness, etc., to ensure smooth assembly with the frame.

Visual inspection: Check for color differences, shrinkage, burrs, weld seams, scratches, etc.

Performance testing (crucial)

Impact test: Use a heavy hammer to freely fall and impact the underfloor of the vehicle body, simulating trampling or collision, to test whether its impact resistance meets the standards.

Static load test: Apply a pressure far exceeding the weight of a child on the pedal to test its bending resistance and creep resistance.

Fatigue test: Simulate the usage state and conduct repeated loading tests on the vehicle body.

Weather resistance test: Place the sample in the ultraviolet aging test chamber to test its UV resistance and ensure it does not become brittle after long-term outdoor use.

We are a scooter plastic body parts moulding manufacturer, providing high-quality scooter plastic body parts moulding manufacturing. As long as you want to customize/develop scooter plastic body parts moulding products, you can find us. We have professional injection mold design and mature manufacturing technology, providing you with one-stop service, from product design-mold making-product production-product packaging-product transportation, we can help you in every link. As long as you come to us, we will provide you with the ultimate service and satisfy you in terms of product quality, production time, information dialogue, etc.

Plastic Injection Mould making

Plastic molding specifications

Mold design:

Transaction process:

Mold testing:

Product packaging

Factory

We are Custom Plastic Mold factory. Our factory is plastic injection mold maker. we has 17 years of experience in professional custom plastic mold and 10 years of foreign trade experience. We are custom Plastic Mold supplier. We can provide custom Plastic Mold service. Our factory can make the Injection molded plastic parts, and the quality of the products will satisfy you.

We have more than 50 high-end machines and hundreds of engineers and designers. We can provide one-stop service, from product design - mold making - product production - product packaging - transportation. We have a complete production chain. We can meet all your requirements.

Services we provide:

Professional custom mold service, Plastic mold design and manufacturing .plastic product production, product design, mold design, blow mold customization, rotational mold customization, die-casting mold customization. 3D printing services, CNC manufacturing services, product packaging, customized packaging, shipping services.

We always adhere to the principles of quality first and time first. While providing customers with the highest quality products, try to maximize the production efficiency and shorten production time. We are proud to tell every customer that our company has not lost any customer since its establishment.If there is a problem with the product, we will seek a solution actively and take responsibility to the end.

FAQ

Q1: Are you trading company or manufacturer ?

A: We are manufacturers.

Q2. When can I get the quotation?

A: We usually quote within 2 days after we get your inquiry.

If you are very urgent, please call us or tell us in your email so that we can quote for you first.

Q3. How long is the lead-time for mold?

A: It all depends on the products' size and complexity. Normally, the lead time is 25 days.

Q4. I have no 3D drawing, how should I start the new project?

A: You can supply us a molding sample, we will help you finish the 3D drawing design.

Q5. Before shipment, how to make sure the products quality?

A: If you don't come to our factory and also don't have the third party for inspection, we will be as your inspection worker.

We will supply you a video for production process detail include process report, products size structure and surface detail, packing detail and so on.

Q6. What is your payment terms?

A: Mold Payment: 40% deposit by T/T in advance, 30% second mold payment before sending out the first trial samples, 30% mold balance after you agree the final samples.

B:Production Payment: 50% deposit in advance, 50% before sending out the final goods.

Q7: How do you make our business long-term and good relationship?

A:1. We keep good quality and competitive price to ensure our customers benefit for best quality products.

2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.