Precision Silicone Tube Extrusion Technology Analysis: The Manufacturing Philosophy of Ruixiang Precision

Precision Silicone Tube Extrusion Production Technology: The Manufacturing Philosophy of Ruixiang Precision

1. Silicone Tube Extrusion Process: The Fusion of Art and Science

Silicone tube extrusion molding is one of the most common and efficient processes in silicone rubber product manufacturing, particularly suited for high-volume, continuous production of precision tubing. At Dongguan Ruixiang Precision Silicone Products Co., Ltd., we have elevated this process to a level where art and science converge. Using advanced screw extruders, we force uniformly mixed silicone compound through dies of specific specifications to form tubes with the required cross-sectional shape and dimensions. Whether employing vertical extrusion or horizontal extrusion, we achieve precise control, ensuring consistency in every meter of product.

Ruixiang Silicone possesses fifteen years of professional experience in silicone product R&D. Our extrusion production lines utilize German-imported equipment, with the vulcanization temperature range precisely controlled between 300-500°C, complemented by comprehensive post-vulcanization treatment processes to ensure stable and excellent final product performance. As a company certified by both the ISO 9001:2015 Quality Management System and ISO 13485 Medical Device Quality Management System, our extrusion process is not only efficient but also fully complies with international quality standards.

2. Ruixiang Precision Silicone Tube Extrusion Process Flow: A System of Precision-Controlled Engineering

In our production facility, silicone tube extrusion is a multi-step, precision-controlled system engineering process, where each stage is meticulously designed and strictly monitored.

• Raw Material Preparation & Mixing: We exclusively select silicone raw materials from top global suppliers, including renowned brands like Germany's Wacker and the US's Dow Corning. Our fully automated mixing system ensures uniform dispersion of various additives, resulting in a homogeneous compound. Our laboratory possesses comprehensive raw material testing capabilities, guaranteeing product quality from the source.

• Precision Extrusion Molding: Strip-shaped compound is fed into our German-imported screw extruders. Through the precise rotational advancement of the screw, the material undergoes stages of conveying, compression, melting, and homogenization. We employ Digital Flow Channel Design Technology and Polyflow simulation of silicone rubber extrusion flow to optimize flow channel exit structure parameters, ensuring optimal extrusion uniformity.

• Precise Vulcanization Cross-linking: The extruded silicone tubes immediately enter our custom-designed vulcanization system. Precise multi-zone temperature control facilitates the formation of a perfect three-dimensional network structure between silicone rubber molecular chains. The special vulcanization process developed by our engineering team endows products with exceptional performance in high-temperature resistance and anti-aging. Notably, our food-grade silicone tubes remain completely odorless after high-temperature water sterilization.

• Comprehensive Inspection & Packaging: We have established a robust inspection system with 18 quality control points from raw material intake to finished product shipment. Our testing equipment includes precision instruments such as Vision Measuring Systems, Tensile Testers, and Durometers, ensuring every batch meets customer specifications. For overseas clients, we offer Vacuum Moisture-Proof Packaging and Customized Labeling services, ensuring products arrive intact despite long-distance shipping.

3. Process Optimization & Precision Control Technology: Ruixiang's Path of Innovation

As market demands for silicone tube quality continually increase, Ruixiang Precision Silicone remains at the forefront of extrusion process optimization and precision control.

• Intelligent Online Monitoring System: We have invested in advanced Online Monitoring Systems capable of real-time detection of key parameters during extrusion. Using Laser Profile Sensors to measure dimensional errors, combined with data analysis and automatic process parameter adjustment, has increased the coincidence degree between the actual extrusion path and the target path by over 25%, far exceeding industry averages.

• Innovative Flow Channel Structure Design: Our R&D team optimizes flow channel design for different application scenarios, possessing unique expertise particularly in medical catheters and food-grade tubing. Optimal coating uniformity is achieved when the flow channel exit contraction length is 5mm, the die gap is 0.8mm, and it linearly expands to 1.05mm at a point 3.5mm from the edge at the center of the exit. This technology has been applied for a national patent.

• Morphology-Based Process Optimization: Our developed Filament Morphology Optimization Method (SMO), by precisely adjusting process parameters like extrusion speed, movement speed, nozzle height, and nozzle radius, effectively controls filament width and height. Actual production data shows this method reduces our processing time by 15%, decreases filament height error by approximately 65%, and increases tensile strength by 10%, delivering superior products and more competitive costs for our customers.

4. Ruixiang's Professional Capability in Solving Industry Challenges

Silicone tube extrusion production often encounters various process issues. Leveraging years of accumulated experience, Ruixiang Precision Silicone has developed comprehensive solutions.

• Precision Dimensional Control: Addressing the common industry challenge of uneven silicone tube dimensions, we have implemented an Intelligent Iterative System Based on Process Monitoring, including steps like initial printing, scanning, analysis, judgment, and automatic modification, significantly improving dimensional accuracy. Our precision silicone tubes can achieve tolerances as tight as ±0.03mm, meeting stringent requirements in medical and aerospace fields.

• Flawless Surface Finish: By Optimizing Flow Channel Exit Structure, particularly applying linear expansion to the edge thickness at both ends of the exit, we can thoroughly improve material flow uniformity and eliminate surface defects. Our silicone tube surface smoothness reaches Ra0.2 or below, fully satisfying high-cleanliness application environment needs.

• High Performance Consistency: We have established a robust quality traceability system ensuring consistent performance between batches. By employing the SMO Method to balance production efficiency and mechanical properties, we achieve a higher degree of product consistency. Client feedback indicates performance variation between our product batches is controlled within 3%, significantly lower than the industry average.

Dongguan Ruixiang Precision Silicone Products Co., Ltd. consistently adheres to technological innovation as the driving force and customer demand as the orientation. Our silicone tube products are exported to over 30 countries and regions including Europe, America, Japan, and South Korea, and we have established long-term, stable cooperative relationships with several Fortune 500 companies. Whether for standard specifications or custom requirements, we provide professional technical support and reliable product solutions. We welcome domestic and international customers to visit our factory for inspection and to explore the limitless possibilities of silicone tube applications together.