Newland Magnetics is committed to achieving and maintaining the highest standards of quality in all aspects of our operations. By adhering to this Quality Control Plan and continuously improving our processes, we will meet the needs of our customers and ensure the long-term success of our business.
Inspection regarding the purity of raw material: Using ICP to exam elements in raw material.
Use caliper to exam the semi-finished magnet thickness, 100pcs for each shift. An average of 90percentage striped chips’ dimension should fal between 0.25-0.35mm. The total weight loss occurs during this Process and should be controlled to less than 1.8percentage.
The microchip thickness is measured with a metallographic microscope. No α-Fe partides are expected. Any average size of 3.5-6.5μm microchips would f the standard as being satisfactory quality category.
Monitor the oxygen level with oxygen detector under the strictest standard. Analyze the powder particle size and distribution with laser particle size diagnose examiner to ensure the top standard of result.
This process is also known as pressing, magnetizing onertation is usually deciced over this process. Oxygen detector is placed during the process to monitor the oxygen level inside operating box.
This process uses a gauge to ensure the vacuum inside of sinter fumace remains at the requred level. The level wil vary as the temperature inside the sinter fumace changes. The figure should be less than 1Mpa after loading. It changes to 7.5×10-3Mpa when the temperature starts rising The vacuum level ndicates the functional abiity of the fumace, A controled vacuum provides better insurance of stabilzed magnet quaity.
Ni coated magnet must survive high pressure cooker with National examining standard (0.2-0.24Mpa, 120℃) passes quality test.
Place Ni-Cu-Ni coated magnets inside the oven and increase the temperature up to 250℃, and after one hour drop the magnet into iced water. Coating that passes examination shall not have any part of coating fall apart air bubble inside or under the coating.
Collision Test
Glue the magnet with steel object that has greater size compared with itself and drop it from 1.5 meter height at free fall speed for 8 times. There should not be anyd part of coating strip off from the magnet.
Zinc Coating Bonding Effectiveness
Zinc coating binding effectiveness, cut the coating on the magnet with sharp steel edge with 30° of incision. The area of cut magnet coating should be square with 1mm2. A successfully-tested object should not fall apart from the base.
Newland has strict inspection protocols against finished goods. Base Il is applied during daily inspection routine. The corresponding AQL value of Newland inspection protocol is 0.65.
Newland has developed their own online system to manage raw material, production quality, packing and dispatch. The system is used to give live data to the management team enabling them to manage the production process and ensure agreed lead-times are being maintained. Newland developed the system to control costs throughout the manufacturing process and certify that production standards are carried out to the requirements of ISO: 9001:2008 and TS 16949:2009
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