Household Appliances
Cooking Appliance Industry SolutionsWaterproof and breathable membrane is a key functional material that balances the internal and external pressure of equipment. The integrity of its microporous structure directly affects the protection level and service life of the product. In fields such as outdoor electronic equipment, automotive lighting, and medical equipment, the sealing failure of the breathable membrane will lead to problems such as water ingress andfogging of the equipment. Hirays provides professional sealing testing solutions for the special structure of waterproof and breathable membranes to ensure that the product achieves reliable waterproofing while maintaining its breathable function.
The breather valve (breathing valve) needs to balance the internal and external pressure difference and be waterproof and dustproof. The key points of the test and the solutionsare as follows:
1. Air permeability test
Measure the air permeability under the standard pressure difference to ensure that it "breathes" smoothly and avoids shell deformation or seal damage due to insufficient flow. You can choose the Hirays HC flow-type airtightness detector.
2. Real water test
Use the HW real water detector tosimulate working conditions such as heavy rain and high-pressure water guns to verify whether its waterproof performance meets the standard and ensure "breathability and no water leakage." The main test method is to apply precisely controlled water pressure to one side of the membrane and hold it steady for several seconds. The instrument monitors the pressure attenuation value in the cavity in real time. If it exceeds the set threshold, the severe waterproofness is determined to be unqualified.style="text-align:center">
⬆ HW true water detector schematic
High-precision flow sensor with resolution up to 0.1 mL/min
Measurement range 0~100 L, support IPX5 / IPX6 and other waterproof grade products
Flexible parameters, free configuration, adaptable to different membrane materials and design requirements
Integrated, multi-channel design, small size, high precision
Automatically identify defective products and alert the police, reducing manualintervention
Widely used in new energy battery packs and 3C fields, serving more than 1,000 production lines in total
