Quality Inspection - Qingdao Shengan Fine Ceramic Advanced Materials Co., Ltd.

Zirconium bead quality control project and testing equipment

Test Items	Unit	Test Equipment and Specifications	Test Methods and Procedures	Equipment pictures
Particle Size	mm	Spiral Micrometer, Electron Microscope, Particle Size Analyzer	Measure the particle size of 50 zirconium balls with a micrometer; use the two - point and three - point methods with an electron microscope to measure the particle size; analyze the particle size with a particle size analyzer through optical tracking and algorithms.
Crushing Strength	N	TH - 8201S Testing Machine	Use the TH - 8201S testing machine to test 50 randomly selected zirconium balls.
Hardness	HV	HVS - 50 Digital Vickers Hardness Tester	Use the HVS - 50 digital Vickers hardness tester with a pressure of 9.8N and a holding time of 15S.

Test Items	Unit	Test Equipment and Specifications	Test Methods and Procedures	Equipment pictures
True Density	g/cm3	Density Tester	Gas displacement method (mass/volume).
Bulk Density	g/cm3	Bulk Density Tester	Conduct a feeding test with a bulk density tester (mass/volume).
Sphericity	%	Two - Dimensional Measuring Instrument	Randomly select 20 zirconium balls for testing (minimum/maximum ball diameter).

Test Items	Unit	Test Equipment and Specifications	Test Methods and Procedures	Equipment pictures
Abrasion	ppm/hr	Planetary Mill	Use 500g of zirconium balls + 300g of water, and run the high - speed planetary mill at 900 revolutions for 4 hours.
Surface	-	Electron Microscope	Take pictures of the smoothness, scratches, defects, etc. of the surface at different magnifications (30 - 50000x).
Cross - Section	-	Electron Microscope	Inlay, polish the cross - section, and randomly select zirconium balls to detect internal pores, cracks, defects, etc. at different magnifications (30 - 2500x).