Quomodo Optimum Furnitorem Magnetorum NdFeB Ad Producta Qi2 Ad Chargerem Wireless Eligeres
Aim Magnet Procurement Advisory Team
You've designed your Qi2 wireless charger. The PCB is laid out, the enclosure is toooled, and the bill of materials is 90% complete. Then comes the magnet ring — the component that determines whether your product snaps satisfyingly into alignment or limps along with weak, unreliable attachment.
Choosing the wrong magnet supplier can cascade into certification failures, production delays, and a 3.8-star Amazon rating. Here's how to make the right choice.
The 7-Point Magnet Supplier Evaluation Framework
1. Dimensional Precision: Can They Hold ±0.02 mm?
This is the non-negotiable starting point. Ask your potential supplier:
- What is your standard OD/ID tolerance? Expected: ≤ ±0.05 mm for Qi2 rings
- Num offeris ±0.02 mm ut optio? Ita — indicat facultatem praemium
- Quomodo dimensiones per partem verificatis? Machina mensurae coordinata (CMM) aut micrometrum laser, non calipers manuales
- Quae est specificatio planitiei? < 0.05 mm trans totum anulum
2. Authenticitas materiae: N52 contra «N52»
Industria magnetica notum habet probleme: inflationem gradus. Magnet «N52» ab fornitori non verificato fortasse actu operatur ad nive N48 — aut peius.
Verificatio requisa:
- Examinatio curvae BH: Unica via ad verificandam Br, Hcj, et BHmax
- XRF (fluorescentia radii X): Confirmat compositionem elementarem, detegit contentum rari terrae impurum
- Examen punctuale per metrum Gauss: Cito examen in campo (probo/reprobo) — utile pro qualitate recensenda
- SEM sectio transversa: Revelat structuram granulorum, detegit microfissuras ex sinteratione mala
Interroga tu fornitor pro un reportu de testu de curva BH ex parte de tertius pro ogni gradu de magnete quod illos cita. Si non possunt fornir unu, abandona.
3. Qualitate del rivestimentu: Le modo occultu de fallimentu
Un anellu de magnete con un rivestimentu deficente oxidabit, dilatabit e perderà fortia intra septimanas in ambientes umidos.
|
Stratum Picturae |
Minima spissore |
Quod protegit contra |
|
Stratu basal (Ni) |
8–12 μm |
Barriera primariu contra corrosionem |
|
Stratu intermediu (Cu) |
3–5 μm |
Sigillatio foraminis |
|
Stratum superius (Ni) |
5–8 μm |
Dura superficiei, aspectus |
|
Totale |
≥ 15 μm |
— |
4. Paratus ad certificandum
- Scit exigentias WPC Qi2 ad experimentum
- Praebet data de campo magnetico ante conformitatem
- Conformitas REACH / RoHS
- Certificatum ISO 9001:2015
5. Constantia partium: Verum experimentum
Un magnes prototypus perfectus facile est. 50 000 annuli magnetici cum performance identica durum est.
|
Metricus |
Industria Standard |
Aim Standard |
|
Variatio Gauss per partem |
±8% |
±3% |
|
Variatio OD/ID per partem |
±0,08 mm |
±0,03 mm |
|
Variatio crassitudinis tegimenti |
±30% |
±10% |
6. Tempus ducens et scalabilitas
- Prototypus (100–500 pces): 2–3 hebdomades
- Exercitium (5 000–10 000 pces): 4–6 hebdomades
- Productio massiva (50 000+ per mensem): 6–8 hebdomades continuo
7. Auxilium technicum
- Simulatio magnetica pro tua specifica bobina + cassa + configuratione magnetis
- Retroactio DFM ante fabricam formarum
- Communicatio technica in lingua Anglica
- responsio intra < 24 h ad quaestiones technicas
Pretium Errandi
|
Modus Defectionis |
Impactus |
|
Certificatio WPC non successit |
retardatio 4–8 hebdomadarum, reditus novus $5K–$15K |
|
Vis retinens inconstans |
ratio redituum productorum 15–25% |
|
Defectus tegimenti in usu |
Petitiones garantis, damnum in mercatis tropicalibus |
|
Fornitor non potest augere productionem |
Finestra di lancio persa |
Anulus magneticus repraesentat < 3% pretii BOM — sed > 50% differentiae UX.
Matrix cito decidendi
|
Tuum praecipuum |
Optimum profilo fornitoris |
|
Celerrimum tempus ad mercatum |
Anulus Qi2 standardis iam certificatus |
|
Maxima potentia |
Arcus segmentatus N52SH, ±0.02 mm |
|
25W Qi2.2 product |
N52SH grade, thermal simulation |
