Dear procurement experts and engineers, today we will share how to use Debug fixtures to check product leakage points.
Generally speaking, there are three ways to check product leakage points.The first is to use the method of entering water to see the bubbles as shown in Figure 1-1, which is suitable for products with holes.When testing, inflate directly from the hole and then put it into water to check for bubbles.
Figure 1-1Enter the water to see the bubbles method - the product has holes and inflate directly, then sink it into the water to see the bubbles
Figure 1-2 Watch center frame leakage inspection fixture
The second type is that the product has no holes (finished watches, finished mobile phones, finished cameras, finished doorbells, finished controllers, etc.), so a leakage detector must be used for testing. The leakage detector is shown in Figure 1-3.
The third method is the sealing pressure attenuation method. This method is to use seals to seal the places where the product may leak.Then gradually open the seal of the part to be tested. If the air pressure decreases, it proves that there is a leak here.
Figure 1-5 Sealing pressure attenuation method - mobile phone Debug fixture lower mold
They each have their own advantages and disadvantages, see the table below
Table 1-1 Comparison of three methods
If a product has IP67 or IP68 waterproofing requirements during design, it often needs to undergo an airtight and waterproof test. The formal steps are as follows.① Consider the testing and assembly of the product thoroughly during design to make the product easy to assemble and remove anti-human designs as much as possible.② Small batch trial production must be carried out before mass production, usually three times. After the equipment and materials are pulled through during trial production, mass production equipment is finally introduced.③Mass production. In mass production, test standards are gradually adjusted and improved so that equipment and standards can be replicated later.
When doing air tightness testing, depending on the state after assembly, there are two testing methods, one is semi-finished product and the other is finished product.
Figure 2-1 The composition of the waterproof detection system
In both states, you can use Microsoft YaHei HC High-precision differential pressure detector + tooling + mold for testing. After the detection is completed, a water test will be carried out. Combining the instrument detection data and water test test results, the judgment parameters of the detector can be corrected to establish the boundaries of qualified products.
Electronic products generally useIPX7
Figure 2-2 Semi-finished product inspection process
The finished product testing process is divided into six steps: pre-inflation, partial pressure, air intake, voltage stabilization, testing, and deflation.
Figure 2-3 Finished product inspection process
The above is today's sharing, thank you for reading.
Heruis Technology------your customized testing equipment partner.
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