Shenzhen Jinyihe Technology Co., Ltd.
Precision CNC machining services | High precision Certified manufacturer We provide high precision CNC machining services, using imported CNC equipment (five-axis/three-axis) and advanced technology,
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Customized accessories high precision plastic injection molding manufacturing mold services
What is the Plastic Injection Molding Process?
Injection molding is a manufacturing solution for creating custom plastic parts with fast turnaround times. Before mass producing your custom plastic parts, you must first customize injection moulds for your production line. The molten thermoplastic is then injected into the mold to form your plastic parts. Inside the mold, the plastic cools and hardens into your custom components.
Injection Molding Service
Custom injection molding services for plastic prototypes and start the production parts at JYH.
Get a free injection molding quotation and design feedback within haft hours.
1. No MOQ requirement
2. Rapid Tooling Production as fast as 1 weeks
3. ISO 9001:2015 certified
4. 24 hours/ 7 engineering support
The temperature in injection molding plays several important roles in ensuring quality control:
| Material Flow and Fill: | The temperature of the molten plastic material affects its viscosity, or flowability. Higher temperatures reduce the material’s viscosity, allowing it to flow more easily into the mold cavities during the injection phase. Proper temperature control ensures optimal material flow and fill, preventing issues such as short shots, flow marks, or incomplete part filling. Temperature control also helps ensure consistent material properties and dimensional accuracy in the final parts.
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| Melting and Homogenization: | The temperature must be carefully controlled during the melting process to ensure complete melting and homogenization of the plastic material. Insufficient melting can result in unmelted particles or inconsistent material properties, leading to defects in the molded parts. Proper temperature control during the melting phase ensures uniform melting and mixing of additives, enhancing material homogeneity and the overall quality of the molded parts.
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| Cooling and Solidification: | After the molten plastic is injected into the mold, temperature control is crucial during the cooling and solidification phase. Proper cooling rates and uniform cooling help prevent issues such as warping, shrinkage, or part distortion. Controlling the temperature allows for consistent solidification throughout the part, ensuring dimensional stability and minimizing internal stresses. Temperature control also affects the part’s crystallinity and microstructure, which can impact its mechanical properties.
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Injection Molding Processes
| Plastic Injection Molding Plastic injection molding is a versatile manufacturing process that utilizes high-pressure injection of molten plastic into a mold cavity to produce a wide range of complex and durable plastic products. This is an ideal process for producing large volumes of standardized parts with excellent mechanical properties. | Insert Molding Insert molding involves the injection of molten thermoplastic around a pre-placed insert to create strong, durable parts. This technique offers advantages like reduced assembly time, improved product reliability and the ability to combine multiple materials in a single part.
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| Overmolding Overmolding is a process in which multiple shots of thermoplastic are injected over or around a substrate to create highly customizable parts. This technique offers versatility and customization options, allowing for the creation of complex and multi-material products with enhanced performance and visual appeal.
| Micro Molding Micro molding is a specialized variation of the injection molding process used to produce small parts with complex geometries. This process allows for the creation of extremely small shot weights, making it a popular option for medical devices, electronics and automotive applications. Micro molding can produce components as small as 0.00025 cc with high quality and repeatability and is compatible with a variety of materials such as PEEK, ABS, Pebax and polypropylene. |
Custom Plastic Injection Molding Materials
Acrylonitrile Butadiene Styrene (ABS).A common thermoplastic used for products that do not require chemical, electrical, or UV resistance. ABS is a flexible and lightweight material with good impact strength and durability. Many everyday objects use ABS custom injection molded parts, such as children’s toys, components in household appliances, and automotive parts.
Low-Density and High-Density Polyethylene (LDPE and HDPE).As one of the most versatile thermoplastics, LDPE and HDPE have high tensile strength, impact resistance, and moisture resistance. HDPE is a material used in a range of consumer and industrial products, while LDPE is a softer version popular in consumer and industrial production.
Polycarbonate (PC).As a transparent, lightweight material, PC is a durable alternative to glass. With high durability and extreme impact resistance, many demanding applications use PC, including bulletproof glass.
Polyamide (Nylon).Nylon offers excellent electrical properties, strength, and resistance to heat wear, and chemicals. Applications in the medical and automotive industries often use nylon for custom plastic injection molded parts.
High Impact Polystyrene (HIPS).As a versatile, impact-resistant, and economical plastic, HIPS consists of crystal styrene and rubber. With non-toxic properties, HIPS is ideal for food-grade components.
Polypropylene (PP).With excellent chemical and stress resistance and high impact strength, PP is a robust plastic with a high melting point. PP is often used as a food-grade polymer in the food and beverage industry.
Why Choose An Injection Molding Service?
The plastic inside the patterns of an injection mold is compressed and forced more firmly into the walls due to the high pressure applied to
the mold. Plastic injection molding is the only molding process that, in comparison to other molding processes, can successfully combine all
of the part’s intricacies. This indicates that there should be no restrictions placed on the amount of detail that should be included in the design.
Plastic molding can produce detailed and extensive details without incurring high costs thanks to high pressure, which is another key
contribution that high pressure brings to the process. The use of injection molding makes it possible to produce elaborate designs
while maintaining a cost-effective manufacturing technique.
Prototype Injection Molding Considerations
| Subject | Consideration
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| Tool Life | Tooling used for prototype molding applications is generally made of softer materials and thus will wear out sooner than molds made of tougher material.
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| Mold Texturing & Polishing | Texturing and polishing of prototype molds can be performed; however, the effect is likely to wear out sooner due to the softer tooling used and may not justify the increased cost. Typically we recommend B to D SPI finishes for prototype molds.
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| Gating Methods | Gates may be constrained to edge, direct & fan techniques. Gating that requires high shear or hot runners is better suited for Bridge or Production tooling.
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| Mold Classes | Class 105 & 104 molds are the most suitable for prototyping molding runs and are typically made of Aluminum or Mild Steel. Projects requiring class 103,102 or 101 molds may be better suited for other tiers of production and be made of higher tier materials.
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| Material Selection | All injection molding materials we offer are available for prototype mold applications. That said, abrasive materials such as glass-filled ones may result in increased wear on a prototype tool's life.
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The benefits of using custom plastic injection moldin
Application of injection molding in large moulded parts
Why Choose Us for Plastic Injection Molding Service
JYH Precision machining provides advanced injection molding services, with solutions covering material verification, tool design,
prototyping & production, finishing, and quality assurance. Our team of experts is committed to delivering professional technical support.
With precise prototypes and production parts,we can help you reach your manufacturing goal.
Our workshop
Shipping way:
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FAQ:
Here are concise responses to your FAQs:
Project Progress: We'll keep you updated via email or calls.
Mold Lead Time: Depends on complexity.
3D Printing Prototypes: Ready within [insert time] after design approval.
Confidentiality: Your drawings remain private, not used for our gain.
Product Quality: If unsatisfied, we'll collaborate on solutions.
OEM & ODM: We offer both options for your convenience.
Our Identity: We are a [insert your description, e.g., "leading manufacturer"].
Design Assistance: Our team can refine or create designs for you.
Getting a Quote: Share details for a detailed project quote.
Assembly & Packaging: We provide assembly and custom packaging.
Price Information: Contact us for accurate pricing details.
Plastic Injection Molding Service For Connect And Training Cartridge Molded Parts,JYH is your best injection mold supplier!
Injection Moulding is highly repeatab.