Optimizing Electronic Potting and Product Reliability through Simulations

Leo Shen, Senior Manager at R&D 1 Division of CoreTech System 

The Benefits of Electronic Potting

Using PU (polyurethane), silicone, or epoxy for electronic potting offers several advantages:

  • Insulation Properties: PU, silicone, and epoxy provide effective insulation, safeguarding electronic components from moisture, dust, and other environmental factors, enhancing device stability and reliability.
  • Component Protection: Components in electric vehicles and mobile products, especially high-power elements, are usually susceptible to mechanical vibrations or impact. These materials offer additional physical protection, reducing the risk of damage.
  • High-Temperature Resistance: Potting materials typically exhibit excellent resistance to high temperatures, helping to address the heat generated during prolonged operation of high-power chargers.
  • Filling and Sealing: PU, silicone, and epoxy can fill and seal gaps around electronic components, minimizing the possibility of moisture and dust ingress, and improving product lifespan.

Electronic potting significantly improves electronic parts and product reliability, durability, and safety.

Challenges in the Potting Process 

Challenges such as air trapping (Figures 1 and 2), the thermal effects of phase transition, and residual stress (Figure 3) accumulated from chemical shrinkage must be addressed during the potting process. These factors can impact product lifespan and reliability estimation.

Figure 1. Air traps in electric motor

Figure 2. Air traps under PCB

Figure 3. Residual stress

Moldex3D Electronic Potting Can Help

Moldex3D Electronic Potting simulation makes it possible to model the fluid dynamics during the potting process, effectively predicting the location and size of air traps. Furthermore, the simulation comprehensively analyzes temperature changes, chemical reactions, curing degree, and shrinkage during the phase transition process.

Confirm and Improve Processing Condition Settings

  • Flow, temperature, phase, and conversion field simulation.
  • Introduce the effects of surface tension, capillary force, and gravity.
  • Optimize the dispenser and path design.
  • Detect potential defects and issues, such as air traps

Post Mold Cure Warpage Simulation

  • Observe the phase transition process through numerical simulation.
  • Thoroughly consider the stress relaxation and chemical shrinkage.
  • Predict deformation in the post-mold cure process via temperature, conversion, and stress distribution simulation.

Enhancing Industrial Precision through Moldex3D Numerical Simulations

Numerical simulations provide comprehensive information at each time point of the process, from the motion state of the flow process to phase-transition and temperature-induced shrinkage and deformation. These rich details can help the industry evaluate product yield, precisely control product quality, and significantly accelerate product evolution.


Door And Window Sealing Strip Series

The classification of door and window sealing strips mainly includes rubber sealing strips, plastic sealing strips, silicone sealing strips, elastic rubber sealing strips, etc. ‌
Rubber sealing strip: Made of natural or synthetic rubber materials, it has good elasticity and durability, which can effectively prevent wind, rain, and noise from entering the room, while also having good insulation and sound insulation effects.
Plastic sealing strip: It is often made of PVC material, which has good weather resistance and durability, and a long service life. The appearance of plastic sealing strips is smooth, easy to clean and maintain, and suitable for sealing various windows.
Silicone sealing strip: Made of silicone material, it has good high temperature resistance, weather resistance, and corrosion resistance. Silicone sealing strips have high flexibility, which can effectively fill window gaps, prevent the penetration of air and moisture, and have good adhesion properties.
Elastic rubber sealing strip: made of elastic materials such as polyurethane, it has good elasticity and toughness, and can maintain a tight fit with the window frame when the window is closed, preventing the penetration of wind, water, and noise. Elastic rubber sealing strips generally adopt self-adhesive design, which is easy and fast to install, does not require glue or other auxiliary tools, and has good wear resistance and corrosion resistance.
These different types of door and window seals have their own characteristics and are suitable for different environments and needs. Choosing the appropriate seal is crucial for improving the sealing performance, waterproofing, sound insulation, and other aspects of doors and windows.
Classified by Material
Rubber door and window sealing strips: They have good elasticity and sealing properties, are affordable, and commonly include EPDM rubber sealing strips with good weather resistance; There is also a natural rubber sealing strip with excellent elasticity.
Silicone door and window sealing strip: with outstanding high and low temperature resistance, stable chemical properties, environmentally friendly and non-toxic, suitable for sealing doors and windows in various harsh environments.
PVC door and window sealing strips: They are cheap, easy to process, and have a certain sealing and waterproof effect, but their durability is relatively poor.
Classify by shape
Self adhesive door and window sealing strip: With an adhesive layer on the back, it is easy to install and can be directly attached to door and window frames. It has various shapes, such as D-type, E-type, etc.
Slot type door and window sealing strip: It needs to be installed in the slot of the door and window frame, tightly combined with the door and window, with good sealing effect. Common shapes include U-shape.

Door And Window Sealing Strip Series,Door Window Frame Seal Strip,Door Seal Strip,Wind Proof Rubber Strip

HEBEI JIEXING RUBBER SEALS CO.,LTD , https://www.jiexingrubber.com

This entry was posted in on