China Standard Custom Injection Molded Process Plastic Injection Molding Part

Product Description

Company Profile

• Specialized in microfluidics, die cutting, laser cutting, screen printing, LSR, plastic
injection molding, bonding (laser & ultrasonic welding), blister packing, dry reagent
handling, assembly, soft goods/wearable manufacturing, and packaging;
• Class 10-100K clean rooms and GMP facilities;
• Offices in Los Angeles (USA) and Singapore;
• Manufacturing sites in Malaysia and China.
 

 

 

Manufacturing Capablities

Types of Injection Molding Used for Medical Prototypes

Injection molding comes in many forms and each type is utilized based on the desired application for the medical device. Hochuen provides all these injection molding processes based on what application would be ideal for the medical device.

Hochuen has experience injection molding with the following materials: Medical grade PC, PMMA, COC, COP, PS, PP, TPE/TPU, LSR, ABS, etc. Each project however has different requirements and we will work with you to determine what works best for your project.

Injection Molding Type:

Ordinary Injection Molding
Double Color Injection Molding
Over Molding
Insert Molding
LSR
Our competence:
Hochuen Medical has a large machine shop equipped with high-speed and high-precision CNC machines to make injection molds and fixtures in house. Our turn-around time of prototype molds is 1~2 weeks and production molds is 4-6 weeks depending on the design complexity.

Injection Molding Applications for Medical Device
Injection-molded parts for medical devices can be used in many different applications, including:

Point-of-care Testing IVD devices
Microfludic Cartridge Devices
Off-Shelf Disposables( Vials, Transfer Pipettes, etc.)
Medical Wearables
Testing Kits

Injection Molding Type Description Description Product precision
Ordinary injection molding All electric injection molding machine,and some high speed machine Normal: 0.01~0.03mm
High Speed: 0.003~0.005mm
Double-color injection molding Finished part injected by 1 time, including hard and soft
material
0.02~0.05mm
Over molding First hard or soft material and then soft or hard one, twice
shots
0.02~0.05mm
Insert molding Hardware inserting 0.02~0.05mm
LSR Liquid silicone rubber injection molding 0.05~0.1mm

Injection Molding Workshop

 

Product Description

Company Name Hochuen Medical Technology Co., Ltd.
Business Type Manufacturer/OEM Factory
Manufacture Capabilities Injection molding, microfluidic devices, adhesive, die cutting, lamination, LSR, bonding (including laser welding, ultrasonic welding, heat staking, etc.), dry reagent handling, reagent blister packing, wet lab process, PCR QC test, CNC precision machining, laser machining, rapid prototyping, label printing, softgood manufacturing, sterilization/packaging,etc.
Plastic Materials ABS, PC, PP, PS, POM, PMMA, PE, PA, HIPS, TPU, PE, BOPP, EPDM, Liquid Silicone Rubber (LSR), etc.
Mould Precision +/-0.01mm
Mould Life 500,000 Times Shots
Mould Cavity Single cavity or multi cavity
Runner System Hot runner and cold runner
CNC/Injection Molding Machines We have Makino, Fanuc, Sodick, CHINAMFG injection molding machines from 50 tons to 450 tons for prototyping and large volume production.
Advanced Testing Equipment Prismo 3D equipment for inspection, 2D testers and other
Colors Available Black, white, clear, red, blue, or according to customer’s requirements.
File Format Solidworks, DWG, PDF, AI, STP/STEP, etc.
Quality Management ISO9001, ISO14001, ISO13485(ALL THE MEDICAL PRODUCTS MEET F.D.A STHangZhouRDS), ISO45001
Other services offered Printing, die cutting, CNC machining, assemblying and packaging, etc.
Payment Method T/T or online transactions(by trade assurance) for option
Products Applications Medical instrument parts and medical disposables, consumer electronics, sports, beauty and personal care products, baby’s products, biosensors for DNA analysis or chemical research, Medical foams/tapes or thermal insulation pad for other biometrics,small parts for automobile, aviation and aerospace equipments, etc.
Prototyping Drawings and quantities will be needed for a detailed quotation. Free Sample will be offered for approval after PO for molding is confirmed.

Our Advantages

1.Work with world-class customers and suppliers;
2.Rapid ramp up capability to mass production;
3.Superior quality and cost benefits;
4.Superior engineering development service;
5.Stringent IP protection for clients;
6.Comprehensive in-house manufacturing and engineering capabilities;
7.Fast response and rapid turn-around;
8.Hochuen has been producing detection cartridges for a dozen of
clients during pandemic.

Certifications

Our Global Business Partners

FAQ

1.How do you cut the parts?
We have laser cutting, die cutting, CNC machining and stamping.

2.What Certificate do you have?
We have certified with ISO 14001, ISO 45001, ISO 13485, and FDA registered.

3.What kind of injection molding you do?
Normally we have ordinary injection molding, double color injection molding, LSR, overmolding, insert molding, etc.

4.What tons of injection molding machine do you have?
From 50 tons to 450 tons, we mainly focus on consumable medical device, LSR (liquid silicone rubber) also available, and we do mold in house.

5.How do you assemble the parts?
Typically we have PSA bonding, laser welding, ultrosonic welding, diffusion bonding, etc.

6.Are you available only prototyping or from prototyping to manufacturing?
We are an OEM manufacturer, and provide 1 stop service from prototyping to mass production.
All of our products are customized.

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Warranty: Customized
Shaping Mode: Injection Mould
Surface Finish Process: Heat Treatment
Customization:
Available

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Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

What are the typical tolerances and quality standards for injection molded parts?

When it comes to injection molded parts, the tolerances and quality standards can vary depending on several factors, including the specific application, industry requirements, and the capabilities of the injection molding process. Here are some general considerations regarding tolerances and quality standards:

Tolerances:

The tolerances for injection molded parts typically refer to the allowable deviation from the intended design dimensions. These tolerances are influenced by various factors, including the part geometry, material properties, mold design, and process capabilities. It’s important to note that achieving tighter tolerances often requires more precise tooling, tighter process control, and additional post-processing steps. Here are some common types of tolerances found in injection molding:

1. Dimensional Tolerances:

Dimensional tolerances define the acceptable range of variation for linear dimensions, such as length, width, height, and diameter. The specific tolerances depend on the part’s critical dimensions and functional requirements. Typical dimensional tolerances for injection molded parts can range from +/- 0.05 mm to +/- 0.5 mm or even tighter, depending on the complexity of the part and the process capabilities.

2. Geometric Tolerances:

Geometric tolerances specify the allowable variation in shape, form, and orientation of features on the part. These tolerances are often expressed using symbols and control the relationships between various geometric elements. Common geometric tolerances include flatness, straightness, circularity, concentricity, perpendicularity, and angularity. The specific geometric tolerances depend on the part’s design requirements and the manufacturing capabilities.

3. Surface Finish Tolerances:

Surface finish tolerances define the acceptable variation in the texture, roughness, and appearance of the part’s surfaces. The surface finish requirements are typically specified using roughness parameters, such as Ra (arithmetical average roughness) or Rz (maximum height of the roughness profile). The specific surface finish tolerances depend on the part’s aesthetic requirements, functional needs, and the material being used.

Quality Standards:

In addition to tolerances, injection molded parts are subject to various quality standards that ensure their performance, reliability, and consistency. These standards may be industry-specific or based on international standards organizations. Here are some commonly referenced quality standards for injection molded parts:

1. ISO 9001:

The ISO 9001 standard is a widely recognized quality management system that establishes criteria for the overall quality control and management of an organization. Injection molding companies often seek ISO 9001 certification to demonstrate their commitment to quality and adherence to standardized processes for design, production, and customer satisfaction.

2. ISO 13485:

ISO 13485 is a specific quality management system standard for medical devices. Injection molded parts used in the medical industry must adhere to this standard to ensure they meet the stringent quality requirements for safety, efficacy, and regulatory compliance.

3. Automotive Industry Standards:

The automotive industry has its own set of quality standards, such as ISO/TS 16949 (now IATF 16949), which focuses on the quality management system for automotive suppliers. These standards encompass requirements for product design, development, production, installation, and servicing, ensuring the quality and reliability of injection molded parts used in automobiles.

4. Industry-Specific Standards:

Various industries may have specific quality standards or guidelines that pertain to injection molded parts. For example, the aerospace industry may reference standards like AS9100, while the electronics industry may adhere to standards such as IPC-A-610 for acceptability of electronic assemblies.

It’s important to note that the specific tolerances and quality standards for injection molded parts can vary significantly depending on the application and industry requirements. Design engineers and manufacturers work together to define the appropriate tolerances and quality standards based on the functional requirements, cost considerations, and the capabilities of the injection molding process.

What is the role of design software and CAD/CAM technology in optimizing injection molded parts?

Design software and CAD/CAM (Computer-Aided Design/Computer-Aided Manufacturing) technology play a crucial role in optimizing injection molded parts. They provide powerful tools and capabilities that enable designers and engineers to improve the efficiency, functionality, and quality of the parts. Here’s a detailed explanation of the role of design software and CAD/CAM technology in optimizing injection molded parts:

1. Design Visualization and Validation:

Design software and CAD tools allow designers to create 3D models of injection molded parts, providing a visual representation of the product before manufacturing. These tools enable designers to validate and optimize the part design by simulating its behavior under various conditions, such as stress analysis, fluid flow, or thermal performance. This visualization and validation process help identify potential issues or areas for improvement, leading to optimized part designs.

2. Design Optimization:

Design software and CAD/CAM technology provide powerful optimization tools that enable designers to refine and improve the performance of injection molded parts. These tools include features such as parametric modeling, shape optimization, and topology optimization. Parametric modeling allows for quick iteration and exploration of design variations, while shape and topology optimization algorithms help identify the most efficient and lightweight designs that meet the required functional and structural criteria.

3. Mold Design:

Design software and CAD/CAM technology are instrumental in the design of injection molds used to produce the molded parts. Mold design involves creating the 3D geometry of the mold components, such as the core, cavity, runner system, and cooling channels. CAD/CAM tools provide specialized features for mold design, including mold flow analysis, which simulates the injection molding process to optimize mold filling, cooling, and part ejection. This ensures the production of high-quality parts with minimal defects and cycle time.

4. Design for Manufacturability:

Design software and CAD/CAM technology facilitate the implementation of Design for Manufacturability (DFM) principles in the design process. DFM focuses on designing parts that are optimized for efficient and cost-effective manufacturing. CAD tools provide features that help identify and address potential manufacturing issues early in the design stage, such as draft angles, wall thickness variations, or parting line considerations. By considering manufacturing constraints during the design phase, injection molded parts can be optimized for improved manufacturability, reduced production costs, and shorter lead times.

5. Prototyping and Iterative Design:

Design software and CAD/CAM technology enable the rapid prototyping of injection molded parts through techniques such as 3D printing or CNC machining. This allows designers to physically test and evaluate the functionality, fit, and aesthetics of the parts before committing to mass production. CAD/CAM tools support iterative design processes by facilitating quick modifications and adjustments based on prototyping feedback, resulting in optimized part designs and reduced development cycles.

6. Collaboration and Communication:

Design software and CAD/CAM technology provide a platform for collaboration and communication among designers, engineers, and other stakeholders involved in the development of injection molded parts. These tools allow for easy sharing, reviewing, and commenting on designs, ensuring effective collaboration and streamlining the decision-making process. By facilitating clear communication and feedback exchange, design software and CAD/CAM technology contribute to optimized part designs and efficient development workflows.

7. Documentation and Manufacturing Instructions:

Design software and CAD/CAM technology assist in generating comprehensive documentation and manufacturing instructions for the production of injection molded parts. These tools enable the creation of detailed drawings, specifications, and assembly instructions that guide the manufacturing process. Accurate and well-documented designs help ensure consistency, quality, and repeatability in the production of injection molded parts.

Overall, design software and CAD/CAM technology are instrumental in optimizing injection molded parts. They enable designers and engineers to visualize, validate, optimize, and communicate designs, leading to improved part performance, manufacturability, and overall quality.

Can you describe the range of materials that can be used for injection molding?

Injection molding offers a wide range of materials that can be used to produce parts with diverse properties and characteristics. The choice of material depends on the specific requirements of the application, including mechanical properties, chemical resistance, thermal stability, transparency, and cost. Here’s a description of the range of materials commonly used for injection molding:

1. Thermoplastics:

Thermoplastics are the most commonly used materials in injection molding due to their versatility, ease of processing, and recyclability. Some commonly used thermoplastics include:

  • Polypropylene (PP): PP is a lightweight and flexible thermoplastic with excellent chemical resistance and low cost. It is widely used in automotive parts, packaging, consumer products, and medical devices.
  • Polyethylene (PE): PE is a versatile thermoplastic with excellent impact strength and chemical resistance. It is used in various applications, including packaging, pipes, automotive components, and toys.
  • Polystyrene (PS): PS is a rigid and transparent thermoplastic with good dimensional stability. It is commonly used in packaging, consumer goods, and disposable products.
  • Polycarbonate (PC): PC is a transparent and impact-resistant thermoplastic with high heat resistance. It finds applications in automotive parts, electronic components, and optical lenses.
  • Acrylonitrile Butadiene Styrene (ABS): ABS is a versatile thermoplastic with a good balance of strength, impact resistance, and heat resistance. It is commonly used in automotive parts, electronic enclosures, and consumer products.
  • Polyvinyl Chloride (PVC): PVC is a durable and flame-resistant thermoplastic with good chemical resistance. It is used in a wide range of applications, including construction, electrical insulation, and medical tubing.
  • Polyethylene Terephthalate (PET): PET is a strong and lightweight thermoplastic with excellent clarity and barrier properties. It is commonly used in packaging, beverage bottles, and textile fibers.

2. Engineering Plastics:

Engineering plastics offer enhanced mechanical properties, heat resistance, and dimensional stability compared to commodity thermoplastics. Some commonly used engineering plastics in injection molding include:

  • Polyamide (PA/Nylon): Nylon is a strong and durable engineering plastic with excellent wear resistance and low friction properties. It is used in automotive components, electrical connectors, and industrial applications.
  • Polycarbonate (PC): PC, mentioned earlier, is also considered an engineering plastic due to its exceptional impact resistance and high-temperature performance.
  • Polyoxymethylene (POM/Acetal): POM is a high-strength engineering plastic with low friction and excellent dimensional stability. It finds applications in gears, bearings, and precision mechanical components.
  • Polyphenylene Sulfide (PPS): PPS is a high-performance engineering plastic with excellent chemical resistance and thermal stability. It is used in electrical and electronic components, automotive parts, and industrial applications.
  • Polyetheretherketone (PEEK): PEEK is a high-performance engineering plastic with exceptional heat resistance, chemical resistance, and mechanical properties. It is commonly used in aerospace, medical, and industrial applications.

3. Thermosetting Plastics:

Thermosetting plastics undergo a chemical crosslinking process during molding, resulting in a rigid and heat-resistant material. Some commonly used thermosetting plastics in injection molding include:

  • Epoxy: Epoxy resins offer excellent chemical resistance and mechanical properties. They are commonly used in electrical components, adhesives, and coatings.
  • Phenolic: Phenolic resins are known for their excellent heat resistance and electrical insulation properties. They find applications in electrical switches, automotive parts, and consumer goods.
  • Urea-formaldehyde (UF) and Melamine-formaldehyde (MF): UF and MF resins are used for molding electrical components, kitchenware, and decorative laminates.

4. Elastomers:

Elastomers, also known as rubber-like materials, are used to produce flexible and elastic parts. They provide excellent resilience, durability, and sealing properties. Some commonly used elastomers in injection molding include:

  • Thermoplastic Elastomers (TPE): TPEs are a class of materials that combine the characteristics of rubber and plastic. They offer flexibility, good compression set, and ease of processing. TPEs find applications in automotive components, consumer products, and medical devices.
  • Silicone: Silicone elastomers provide excellent heat resistance, electrical insulation, and biocompatibility. They are commonly used in medical devices, automotive seals, and household products.
  • Styrene Butadiene Rubber (SBR): SBR is a synthetic elastomer with good abrasion resistance and low-temperature flexibility. It is used in tires, gaskets, and conveyor belts.
  • Ethylene Propylene Diene Monomer (EPDM): EPDM is a durable elastomer with excellent weather resistance and chemical resistance. It finds applications in automotive seals, weatherstripping, and roofing membranes.

5. Composites:

Injection molding can also be used to produce parts made of composite materials, which combine two or more different types of materials to achieve specific properties. Commonly used composite materials in injection molding include:

  • Glass-Fiber Reinforced Plastics (GFRP): GFRP combines glass fibers with thermoplastics or thermosetting resins to enhance mechanical strength, stiffness, and dimensional stability. It is used in automotive components, electrical enclosures, and sporting goods.
  • Carbon-Fiber Reinforced Plastics (CFRP): CFRP combines carbon fibers with thermosetting resins to produce parts with exceptional strength, stiffness, and lightweight properties. It is commonly used in aerospace, automotive, and high-performance sports equipment.
  • Metal-Filled Plastics: Metal-filled plastics incorporate metal particles or fibers into thermoplastics to achieve properties such as conductivity, electromagnetic shielding, or enhanced weight and feel. They are used in electrical connectors, automotive components, and consumer electronics.

These are just a few examples of the materials used in injection molding. There are numerous other specialized materials available, each with its own unique properties, such as flame retardancy, low friction, chemical resistance, or specific certifications for medical or food-contact applications. The selection of the material depends on the desired performance, cost considerations, and regulatory requirements of the specific application.

China Standard Custom Injection Molded Process Plastic Injection Molding Part  China Standard Custom Injection Molded Process Plastic Injection Molding Part
editor by CX 2024-02-19