In the field of superconducting applications that pursue ultimate performance, every detail is of vital importance. Superconducting coils, as core components of magnetic resonance imaging (MRI), particle accelerators, nuclear magnetic resonance (NMR), and future fusion energy devices, the quality of their insulation and packaging directly determines the stability and performance of the entire system. How to ensure zero defects and complete impregnation inside the coil, thereby achieving unparalleled electrical and mechanical performance? The answer lies in the cutting-edge static mixing vacuum casting equipment.
What is static mixing vacuum casting technology?
In simple terms, this is an advanced process used for handling materials such as two-component (or multi-component) high-precision epoxy resins. It integrates precise mixing, thorough degassing and vacuum casting, and is specially designed for products like superconducting coils that have extremely high requirements for purity and consistency.
Static mixing: No dynamic stirring blades are required. Through the precisely designed internal structure of the mixing tube, the A and B components of the resin are thoroughly and evenly mixed under pressure, fundamentally avoiding the entrainement of bubbles and the degradation of the catalyst due to stirring.
Vacuum environment: The entire mixing and pouring process takes place in a continuous vacuum environment, which can effectively remove the tiny bubbles that may occur in the material itself and during the pouring process, ensuring that the impregnating medium has no air gaps.
Precise pouring: The system can precisely control the flow rate, pressure and temperature, allowing the viscous resin to smoothly and uniformly penetrate into the tiniest gaps of the superconducting coil, achieving 100% perfect impregnation.
Why must the manufacturing of superconducting coils rely on this technology?
Superconducting coils operate in an extreme environment with extremely low temperatures, strong magnetic fields and huge electromagnetic stresses. Any tiny bubbles, voids or uneven impregnation can lead to:
Partial discharge and insulation failure: Bubbles are weak points in insulation under strong electric fields and are prone to partial discharge, eventually breaking down the insulation and causing a short circuit in the coil.
Hot spot formation and Quench: Uneven impregnation can lead to a decline in thermal conductivity, creating local "hot spots" during operation and triggering coil quench, resulting in disastrous consequences.
Insufficient mechanical properties: Epoxy resin not only provides insulation but also serves as a structural material that solidifies the coil into a solid whole. Any defect will reduce its ability to resist huge electromagnetic stress.
Our static mixing vacuum casting equipment is precisely designed to address these core pain points.
What core values can our equipment bring to your superconducting project?
Outstanding insulation integrity: Through vacuum and static mixing technology, zero-bubble impregnation is achieved to create a uniform and dense insulation system, significantly enhancing the coil's withstand voltage rating and long-term operational reliability.
Unparalleled thermal conductivity: The fully filled epoxy resin ensures the best heat conduction path inside the coil, effectively dissipates heat, significantly reduces the risk of overloading, and enhances system stability.
Extremely high repeatability and consistency: The entire process is automatically controlled by PLC. Once the parameters are set, each batch of products can meet the same top-level standards, making it perfectly suitable for large-scale production.
Protecting expensive superconducting materials: The gentle mixing and casting process avoids potential damage to sensitive materials caused by mechanical shear forces, ensuring that the performance of your precious superconducting tapes is perfectly brought out.
Application fields of static mixing vacuum casting equipment
Our equipment is an ideal choice for the following high-end superconducting applications:
Medical MRI superconducting magnet
NMR spectrometer magnets for scientific research
Particle collider and synchrotron radiation device magnets
Superconducting coils for nuclear fusion experimental devices (such as tokamaks)
Superconducting energy storage (SMES) and current limiters
We are well aware that on the path of exploring superconducting technology, the reliability of manufacturing equipment is the cornerstone of your success. Our static mixing vacuum casting equipment integrates decades of engineering experience and technological innovation, dedicated to providing you with a full-process solution from laboratory research and development to industrial production.