|
| No. | Failure mode | Failure effect | Failure reason |
|
| F1 | Poor insulation | Product leakage | Insufficient insulation level of material |
| F2 | The strength of the spool is not enough, and the product splits after winding | Magnetic flux leakage products | (i)Low strength of plastic materials |
| (ii)Improper design of spool |
| (iii)Excessive tension design |
|
| F3 | Short circuit/open circuit of product after power on and heating | Cannot drive the action of customer organization, customer cannot use it | Insufficient temperature resistance of materials |
| F4 | Insufficient strength of end foot | Affect customer installation | Improper soldering and assembly design |
| F5 | Poor surface roughness | Affect product life | Improper design of dimensional tolerance |
| F6 | Poor concentricity | Customer unable to install or not suitable for installation | Improper design of dimensional tolerance |
| F7 | The magnetic force of the product is insufficient after being electrified | Unable to drive customer organization action | (i)The magnetic permeability of the material is insufficient, and the attraction is insufficient after being electrified |
| (ii)Improper design |
|
| F8 | Residual magnetic field after power on | Unable to drive customer organization action | (i)The magnetic permeability of the material is insufficient, and the attraction is insufficient after being electrified |
| (ii)The thickness of the lower wall is thin |
|
| F9 | Appearance corrosion and rust | Poor appearance, customer dissatisfied | The antirust layer is too thin and the process is improper |
|
