Plastics injection molding mechanical parts

Plastics injection molding mechanical parts

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Payment Type:	L/C,T/T
Incoterm:	FOB,CIP
Transportation:	Ocean
Port:	Dalian

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Product Description

Product Attributes

Packaging & Delivery

Product Description

Product Attributes

Brand: Jinggong

Place Of Origin: China

Processing Service: Moulding

Plastic Molding Process Type: Injection

Packaging & Delivery

Selling Units	:	Piece/Pieces
Package Type	:	Carton or pallet
Picture Example	:

Product Description

Injection Molding is a manufacturing process used to create various components, including gears, by injecting molten plastic into a mold. Here's a brief overview of how injection molded gears are produced:

1. **Design and 3D Modeling**: The first step is to design the gear using computer-aided design (CAD) software. Engineers create a 3D model of the desired gear shape, considering factors like tooth profile, pitch diameter, and module.

2. **Tooling**: A mold is made for the injection molding process. The mold consists of two main parts: a male half (which has the negative shape of the gear) and a female half (with the positive shape). These are machined from steel or aluminum, ensuring precision and durability.

3. **Material Preparation**: The appropriate plastic material, such as acrylonitrile butadiene styrene (ABS), polypropylene (PP), or nylon, is prepared in the form of pellets or powder. It is melted and mixed to achieve the desired color, strength, and other properties.

4. **Injection Molding Process**: The melted plastic is fed into an injection molding machine, which heats it up to the required temperature. The material is then injected into the mold under high pressure, filling the mold cavities with the molten plastic.

5. **Curing and Cooling**: Once the mold is filled, the plastic begins to cool and solidify. The mold halves remain closed during this stage, allowing the part to retain its shape. After the material has cooled and hardened, the excess plastic is ejected from the mold.

6. **Post-Molding Operations**: The gears are removed from the mold, and any burrs or flash (excess plastic) is trimmed. They may also go through additional processes like polishing, heat treatment, or surface coating to improve their finish and functionality.

7. **Quality Control**: Each gear is inspected for dimensional accuracy, surface quality, and overall performance to ensure they meet the specifications.

8. **Assembly and Packaging**: Injection molded gears are ready for assembly into machinery or devices, and they are typically packaged in quantities suitable for storage and distribution.

This process allows for mass production of consistent, high-quality gears at a relatively low cost, making it a popular choice for many industries that require precise and durable components.