OMEC LS-POP(9) Laser Particle-Size Analyzer
Used to generate particle-size distribution data for identified samples.
Industrial Diamond Quality Control
Quality Control for Industrial Diamond Products
Quality control is built into the stages that affect the supplied product, from incoming material inspection and process monitoring to finished-product review, batch records, and shipment preparation.
Quality Control Overview
Quality Control Built Around Product Requirements
The quality-control process described in the source document covers incoming material review, production-stage monitoring, finished-product inspection, batch record management, and shipment preparation. The applicable checks depend on the product and the requirements defined for the order.
Product Requirements
Applicable checks are aligned with the product specification and order requirements.
Batch Information
Production, inspection, batch, and shipment records are maintained as connected information.
Buyer Review
Buyers can request confirmation of the documents available for the product under evaluation.
Process Overview
Our Quality Control Process
Quality checks are placed at the stages that influence the supplied material. The applicable inspection items depend on the product and order requirements.
Step 01
Incoming Material Inspection
Step 02
In-Process Monitoring
Step 03
Finished-Product Inspection
Step 04
Batch Review and Release
Step 05
Packaging and Shipment Verification
Stage 01
Incoming Material Inspection
Incoming diamond raw materials are sampled before release to production. Supplier quality is also evaluated as part of incoming material management.
Crystal form or particle appearance
Impurity content and initial particle-size screening
Strength, color, appearance, and batch identification
Optical microscopy supports particle appearance review during incoming and finished-product control.
Production equipment and test data support repeatable process control.
Stage 02
In-Process Quality Control
Documented production stages for diamond micron powder include crushing, ball milling, classification, and purification. Operators monitor defined process parameters at the applicable stages.
Samples are taken after classification to evaluate particle-size distribution and agglomeration. Material that falls outside the defined requirement is reprocessed and tested again. It is released only after meeting the applicable acceptance criteria.
Ball mills, air-jet crushers, and airflow shaping machines
Ultrasonic vibrating screens and automatic classification systems
Micron powder extraction centrifuges and drying equipment
Stage 03 and 04
Finished-Product Inspection and Batch Release
Finished-product inspection covers D50 and D90 particle-size distribution, impurity content, powder purity, dispersion, product specification, appearance, packaging integrity, and customer-specific requirements. Conforming product is released for packaging and shipment with the applicable batch test data.
Particle Size
D50 represents the particle size at which 50% of the measured distribution is below that value; D90 represents the size below which 90% of the measured distribution falls.
Appearance
Crystal form or particle appearance is reviewed during incoming and finished-product control.
Product and Packing
Packaging can be customized to meet specific customer requirements.
Testing Equipment and Methods
Equipment Used for Particle-Size and Appearance Review
The supplied document shows an OMEC LS-POP(9) laser particle-size analyzer, a Microtrac S3500 particle-size analyzer, and an optical microscope.
Microtrac S3500 Particle-Size Analyzer
Used to generate particle-size distribution data and report values such as D50 and D90.
Optical Microscope
Used for visual observation of particle appearance.
Test Report Examples
Particle-Size Test Report Examples
LS-POP(9) particle-size distribution report for an identified diamond powder sample.
Microtrac particle-size analysis report for an identified diamond powder sample.
Batch Consistency and Traceability
Batch Records and Traceability
The documented batch record structure connects the raw-material batch, production record, quality test result, batch number, and shipment record. These records support review of the production and inspection information associated with a supplied batch.
Diamond micron powder batch label showing particle-size and batch-number fields.
Industrial diamond product package label showing product name, particle size, quantity, and lot number fields.
Stage 05
Packaging and Shipment Preparation
Packaging is completed according to the order requirements. Before shipment, the documented final review covers packaging integrity, labels, quantity or weight, batch number, and accompanying documents. Packaging and shipment records are maintained with the order history.
Documents
Quality Documents and Customer Support
Depending on the product and order requirements, available documents may include a product test report, Technical Data Sheet (TDS), Safety Data Sheet (SDS), and relevant quality certification documents. Document availability should be confirmed for the product under evaluation.
Certifications
Certified Management Systems
ISO 9001Quality management system
ISO 14001Environmental management system
ISO 45001Occupational health and safety management system
ISO 50001Energy management system
Production records, test data, and raw-material information may be reviewed to identify the cause of a quality issue.
Nonconformance and Corrective Action
Quality Issue Handling and Corrective Action
When a quality issue is identified during production or reported by a customer, the documented process records the product, batch number, issue description, application conditions, and customer feedback.
Nonconforming material is reprocessed where applicable and tested again. It is released only after it meets the applicable requirement. Corrective actions may also address the production process, inspection process, personnel training, or management requirements.
FAQ
Frequently Asked Questions
What is checked before diamond raw materials enter production?
Incoming materials are sampled before release. The documented inspection items include crystal form or particle appearance, impurity content, initial particle-size screening, strength, color, appearance, and batch identification.
How is particle size controlled during production?
Process parameters are monitored during crushing, ball milling, classification, and purification. Samples are taken after classification to review particle-size distribution and agglomeration before the material moves to the next stage.
What happens if an in-process sample does not meet the requirement?
The material is reprocessed and tested again. It is not released to the next production stage until it meets the applicable requirement.
What is included in finished-product inspection?
The listed items may include D50 and D90 particle-size distribution, impurity content, powder purity, dispersion, product specification, appearance, packaging integrity, and customer-specific requirements.
What quality documents may be available?
Depending on the product and order requirements, available documents may include a product test report, TDS, SDS, and relevant quality certification documents.
How are quality issues investigated?
The review records the product, batch, issue description, application conditions, and customer feedback. Production records, test data, and raw-material information may then be reviewed to identify the cause and define actions.
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