The Birth of High – Quality Silicone Products at JEWELIVES

In today’s world where technology and daily life are closely connected, シリコーン製品 have become very popular because they are eco – friendly, safe, durable, and can be made into various shapes. These products are used in many areas like everyday life, medical care, electronic appliances, baby products, and industrial parts.JEWELIVES, a tech company specialized in top – notch silicone product R & D and manufacturing, always prioritizes product quality and process innovation. Now, let’s explore the entire production process of high – quality silicone products at JEWELIVES.

Core: JEWELIVES’ Standard Production Process for Silicone Products

JEWELIVES strictly follows the ISO quality management system and implements refined control over the entire silicone product production process. Our standard process mainly includes the following key steps:

Raw Material Selection and Inspection (Source Control)

Strict Material Selection: We only use high – purity food – grade or medical – grade silicone raw materials (liquid silicone rubber LSR or solid silicone compound) that meet international eco – standards such as FDA, LFGB, RoHS, and REACH.

Incoming Inspection: Before each batch of raw materials is stored, we conduct strict physical property testing (such as viscosity, hardness, density) and chemical safety inspection to ensure the source is pure and reliable.

Mold Design and Manufacturing (The Starting Point of Craftsmanship)

Precision Design: Based on customer requirements or product design drawings, our engineering team uses advanced CAD/CAM technology for precise mold design, considering product structure, demolding method, parting line position, and venting requirements.

Precision Machining: We use high – precision CNC machining centers, electrical discharge machines, and other equipment to manufacture molds, ensuring precise mold dimensions and high surface finish, which is crucial for product precision and appearance quality.

Strict Trial Molding: Before new molds are put into use, they must undergo multiple trial molding and adjustments to verify their stability, forming effect, and production efficiency until optimal conditions are achieved.

Mixing and Coloring (Precision Allocation)

Solid Silicone Mixing: For solid silicone (HTV), we mix raw rubber with vulcanizing agents, color masterbatches, and additives in precise formulations using internal mixers or open mixers. This ensures uniform color and stable performance of the mixed compound.

Liquid Silicone Preparation: For liquid silicone (LSR), we accurately measure the A and B components (base polymer and catalyst) of the liquid raw materials and ensure uniform mixing through a static mixer. Color matching also requires precise color paste proportioning and mixing.

Forming Process (Core Shaping)

Solid Silicone Forming (Compression/Injection):

• Compression Forming:Place the precisely weighed mixed compound into a preheated mold and vulcanize it under high temperature and pressure. This method suits products with relatively simple structures and larger sizes.
• Injection Forming: Use an injection machine to plasticize the mixed compound and inject it into a closed mold for vulcanization. This method is efficient and suitable for complex – structured, precision – sized, and mass – produced products.

Liquid Silicone Forming (LSR Injection Forming): Using a dedicated LSR injection molding machine, the precisely mixed two – component liquid is injected into the mold at a low temperature and then quickly vulcanized inside the mold through heating. This method offers significant advantages such as high precision, no flash, high production efficiency, and high automation, making it ideal for precision, mini – sized, and high – requirement silicone parts like medical tubes, sealing rings, and nipples.

Vulcanization (Performance Stabilization)

The high – temperature and high – pressure stage during forming is the vulcanization process, a key step where silicone molecular chains undergo cross – linking reactions. JEWELIVES accurately controls vulcanization temperature, pressure, and time to ensure products meet design requirements for physical and mechanical properties (such as hardness, elasticity, tensile strength, and tear strength) and chemical stability.

Post – processing (Refinement)

• De – flashing/De – burring: Remove flash and burrs from the forming process to ensure smooth product edges. Various methods such as manual, cryogenic, and mechanical cutting can be used.

Secondary Vulcanization (Baking): For some products with higher requirements, secondary high – temperature baking is performed after forming vulcanization. This further promotes cross – linking reactions, removes volatile substances, and enhances product performance (such as compression set and temperature resistance) and stability.

Surface Treatment (Optional): Based on customer requirements, surface treatment processes such as spraying (hand – feel oil, PU oil, etc.), silk – screening, laser engraving, and drop – coating can be applied to improve product appearance, feel, or add identification marks.

Comprehensive Quality Inspection (Quality Protection)

JEWELIVES has established a comprehensive quality inspection system:

Visual Inspection: Use manual visual inspection or automated vision – inspection equipment to check for defects such as dirt, missing material, bubbles, deformation, color difference, and burrs.

Dimensional Inspection: Use precision instruments such as calipers, projectors, 2D image measuring instruments, and 3D coordinate measuring machines (CMM) to strictly control critical product dimensions to meet drawing tolerance requirements.

Function Testing: For products with specific functions (such as sealing, water – proofing, and button life), conduct functional tests simulating actual usage scenarios.

Physical and Chemical Property Testing: In the laboratory, conduct tests on hardness, tensile strength, tear strength, resilience, temperature resistance, aging resistance, chemical solvent resistance, and biocompatibility (if applicable).

Safety Testing: Ensure products meet regulatory requirements (such as food – grade and medical – grade) by conducting tests on heavy metals, migratable substances, and odor.

Cleaning and Packaging (Perfect Delivery)

Cleaning: Thoroughly clean finished products (e.g., ultrasonic cleaning, IPA wiping) to remove surface dust, oil, and mold release agent residues, ensuring product cleanliness.

Packaging: Based on product characteristics and customer requirements, use appropriate packaging methods such as dust – proof bags, blister packs, cardboard boxes, and wooden cases. Clearly mark product information, batch number, quantity, and necessary warning instructions to ensure product protection during transportation and storage.

JEWELIVES’ Advantages and Commitments:

Full – process Control: From raw materials to finished products, JEWELIVES has a complete production chain and strict internal control standards to ensure quality control at every stage.

Advanced Equipment and Processes: We continuously invest in introducing advanced automated production equipment (such as precision injection machines and automated production lines) from home and abroad, as well as mature forming processes (especially LSR technology), to improve efficiency and accuracy.

Professional Team: We have experienced engineers, skilled technicians, and a dedicated quality inspection team to provide strong technical and human resource support for product quality.

Customization Capability: With strong mold design and manufacturing capabilities and flexible production lines, we can meet diverse and personalized product requirements, offering one – stop solutions from OEM to ODM.

Strict Quality Control: The “quality is the lifeline” concept is always observed. Multiple quality inspection checkpoints ensure zero – defect products are delivered.

Eco – compliance: We strictly select eco – friendly materials, focus on energy – saving and emission reduction during production, and ensure products meet domestic and international environmental regulations.

Every silicone product that leaves JEWELIVES embodies our dedication to quality and continuous improvement in craftsmanship. Behind the seemingly simple process from silicone raw materials to finished products lies countless technical refinements, rigorous process control, and strict quality inspection.

JEWELIVES aims to be your trusted partner for silicone products. We provide not only products but also professional solutions and reliable quality assurance. Regardless of your industry or requirements, JEWELIVES is committed to crafting safe, reliable, and high – quality silicone products for you with excellent craftsmanship and a craftsman’s spirit.

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