Quality
Uncompromising Quality, Our Magnet Standards
our quality matters
Quality Control Procedure
| 1. Purchase Raw Material | Equipment: – | ||||
|---|---|---|---|---|---|
| Control Point | Control Method | ||||
| Item Inspection | Standard | Frequency | Instrument Used | Record Document | In-Charge |
| Name, Amount, Order No. | Purchase Document Inspection Standard | All 2pcs Per Load | Visual ICP or Chemical Analyze | Material Inspection Sheet | Operator Technician |
| Composition, Appearance | |||||
| 2. Burden | Equipment: Electric Balance | ||||
|---|---|---|---|---|---|
| Control Point | Control Method | ||||
| Item Inspection | Standard | Frequency | Instrument Used | Record Document | In-Charge |
| Weight | Burden Production Guide | All | Electric Balance Visual | Burden Record | Operator |
| Appearance | |||||
| 3. Melting | Equipment: Vacuum Melting Furnace | ||||
|---|---|---|---|---|---|
| Control Point | Control Method | ||||
| Item Inspection | Standard | Frequency | Instrument Used | Record Document | In-Charge |
| Composition | Inspection Standard | 1pcs / Furnace / Week | ICP or Chemical Visual | Inspection Sheet Quality Record | Technician |
| Appearance | All | ||||
| 4. Smash & Jet Milling | Equipment: Smash Machine Jet Mill | ||||
|---|---|---|---|---|---|
| Control Point | Control Method | ||||
| Item Inspection | Standard | Frequency | Instrument Used | Record Document | In-Charge |
| Powder Size | Milling Production Guide | 1Times / Day / Machine Per Load | FSSS Oxygen Determinator | Powder Size Record | Technician |
| Oxygen Content | Oxygen Record | ||||
| 5. Pressing | Equipment: Press | ||||
|---|---|---|---|---|---|
| Control Point | Control Method | ||||
| Item Inspection | Standard | Frequency | Instrument Used | Record Document | In-Charge |
| Height | Pressing Production Guide | 5% Per Load | Calipers | Produce Process Sheet(3) | Operator |
| Press | All | Press Meter |
|||
| Weight | All | Balance | |||
| 6. Sintering & Tempering | Equipment: Vacuum Furnace | ||||
|---|---|---|---|---|---|
| Control Point | Control Method | ||||
| Item Inspection | Standard | Frequency | Instrument Used | Record Document | In-Charge |
| Sintering Time | Inspection Standard | 1pcs / Furnace / Week | ICP or Chemical Visual | Inspection Sheet Quality Record | Technician |
| Sintering Temperature | All | ||||
| 7. Inspection | Equipment: B-H Curves Measurement Magnetizer | ||||
|---|---|---|---|---|---|
| Control Point | Control Method | ||||
| Item Inspection | Standard | Frequency | Instrument Used | Record Document | In-Charge |
| Br、jHc、(BH)max | Company Standard Inspection Standard | 5pcs Per Load | B-H Curves Measurement | Sintering Produce Test Sheet | Inspection |
| Magnetic Property | AQL = 0.65 | Gauss meter or Flux meter | |||
| De-Magnetiz Volt | AQL = 0.65 | De-Magnetizer | |||
| Appearance | All | Visual | |||
| 8. Machining | Equipment: Grinder Slice Electric Spark Machining Magnetizer | ||||
|---|---|---|---|---|---|
| Control Point | Control Method | ||||
| Item Inspection | Standard | Frequency | Instrument Used | Record Document | In-Charge |
| Dimentions | Inspection Standard | AQL = 0.25 | Calipers | Produce Inspection Sheet | Inspection |
| Appearance Tolerance | AQL = 0.25 | Calipers | |||
| Orientation | AQL = 0.25 | Magnate Material | |||
| Magnetic Property | AQL = 0.4 | Gauss Meter or Flux Meter | |||
| Appearance | AQL = 0.25 | Visual | |||
| 9. Plating | Equipment: Plating Vat | ||||
|---|---|---|---|---|---|
| Control Point | Control Method | ||||
| Item Inspection | Standard | Frequency | Instrument Used | Record Document | In-Charge |
| After Plating Dimensions | Inspection Standard | AQL = 0.65 | Calipers | Produce Inspection Sheet | Inspection Technician |
| Appearance | AQL = 0.65 | Visual | |||
| Plating Thickness | 5pcs Per Load | Thickness Determinator | Thickness Record | ||
| 10. Final Inspection | Equipment: Magnetizer | ||||
|---|---|---|---|---|---|
| Control Point | Control Method | ||||
| Item Inspection | Standard | Frequency | Instrument Used | Record Document | In-Charge |
| Dimensions | Inspection Standard | AQL = 0.65 | Calipers | Final Inspection Record Sheet | Inspection |
| Appearance Tolerances | AQL = 0.1 | Calipers | |||
| Orientation | AQL = 0 | Magnate Material | |||
| Magnetic Property | AQL = 0.65 | Gauss Meter or Flux Meter | |||
| Appearance | All | Visual | |||
| 11. Packing | Equipment: Packer | ||||
|---|---|---|---|---|---|
| Control Point | Control Method | ||||
| Item Inspection | Standard | Frequency | Instrument Used | Record Document | In-Charge |
| Quality | Inspection Standard | All | Visual | Enter Store Sheet | Operator |
| Label | |||||