Quality control is a necessary process to ensure the quality of products in industrial diamond factories. Here are a few key steps for quality control:

Raw material control: Ensure that the purchased raw materials are of stable quality, high purity, and meet production requirements. Conduct quality inspections on raw materials entering the factory, including testing of chemical composition, purity, particle size distribution, etc.
Production process control: During the production process, the process flow and operating procedures must be strictly followed to prevent product quality from declining due to improper operation or fluctuations in process parameters such as temperature and pressure. Conduct quality inspections on semi-finished products during the production process to ensure that the quality of each process meets the requirements.
Finished product quality control: The quality of finished diamonds directly affects the final performance of the product. Conduct quality inspections on finished products, including inspection of appearance, size, hardness, purity, etc. Ensure that all product indicators meet customer requirements and industry standards.
Establishment and implementation of quality management system: Establish a complete quality management system, including quality planning, quality control, quality assurance and quality improvement. Through the implementation of quality management system, we continuously improve product quality and production efficiency and reduce the rate of defective products.

Continuous improvement: Continuous improvement of production processes and products based on customer feedback and internal quality inspection results. Take effective measures to improve the problems found and continuously improve product quality and customer satisfaction.
Personnel training: Provide quality management training to employees to improve their quality awareness and skill levels. Ensure that employees are proficient in process processes and operating procedures, comply with quality standards, and provide guarantee for product quality.
Equipment maintenance and calibration: Regularly maintain and calibrate production equipment to ensure the stability and accuracy of the equipment. Conduct regular inspections and tests on key equipment to ensure that the performance and accuracy of the equipment meet production requirements.
Environmental control: Keep the production environment clean and hygienic, control temperature, humidity and other environmental factors to prevent environmental factors from affecting product quality.
Selection and calibration of quality inspection equipment: Select quality inspection equipment with high accuracy and good stability, and calibrate and maintain the inspection equipment regularly to ensure the accuracy and reliability of the inspection results.

Recording and analysis of quality data: Record quality data in detail, including raw material testing results, production process testing data, finished product testing reports, etc. Through the analysis of quality data, fluctuations and potential problems in product quality are discovered, and measures are taken to improve them in a timely manner.
Handling of non-conforming products: Identify, isolate and handle non-conforming products. Analyze the causes of non-conforming products and take corresponding measures to correct and prevent similar problems from happening again.