Yueqing Chenf Electric Co., Ltd. has specialized in the production of customized wiring harnesses for 20 years. Its products are widely used in industrial control, new energy, automotive, medical and other fields. In medical wiring harnesses and computer power wiring harnesses, they are often seen wrapped in thick colloid. Peel it off and you will find an iron ring. This is a very common magnetic ring. There are many names for magnetic rings, such as anti-interference magnetic ring, absorption magnetic ring, shielding magnetic ring, ferrite magnetic ring, EMI/EMC magnetic ring. According to the market demand for EMI anti-interference magnetic rings, manufacturers have developed anti-interference magnetic rings with different performances and specifications. So how to test this magnetic ring?
Medical power harness
Sequence of inspection: Generally, the principle that should be followed when inspecting iron powder cores: First, inspect the overall appearance and size.
1. Appearance
1. No foreign matter, pores, impurities, burrs, dirt, damage, etc.
2. (1) The area of one defect ≤ 1mm2 (2) The total defect area ≤ 2mm2 (3) Depth of defects ≤ 4mm (4) Burr length ≤ 0.2mm
2. Packaging
1. The packaging box must not be damaged, and the label must be printed correctly, clearly and legibly.
2. There should be no clutter in the inner packaging and no mixed packaging.
3. Size
1. Compare the sampled objects with the specifications indicated on the acknowledgment letter
2. Key dimensions need to be confirmed by measurement and comparison.
4. Environmental protection testing
1. Each batch of materials must undergo ROHS 10 environmental tests.
2. Suppliers must attach SGS reports or relevant environmental protection material certificates
Chenf Electric conducts strict inspections on each product and records the test results to facilitate data traceability. Iron powder core inspection is the first and most basic step in quality control of connector wire harness products. Work. Kaibaile’s control and strict requirements for wire harness quality are worthy of your trust.
Post time: Oct-07-2023