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How do Sodium Feldspar Manufacturers Control Product Quality?

March 03 , 2025

In high-end industries such as ceramics, glass fiber, and plastics, sodium feldspar is a key raw material, and its quality directly affects the performance and market competitiveness of the final product. In order to ensure the high purity and high performance of sodium feldspar, manufacturers must strictly control every link from raw material screening, production process, quality testing to customer feedback. This article will deeply explore the comprehensive quality management strategy in sodium feldspar production, and reveal how to ensure that every grain of sodium feldspar powder meets the highest standards through technological innovation and strict management.

把控质量

Raw material screening and procurement

Supplier evaluation and selection

Establish a supplier evaluation system to comprehensively evaluate suppliers from the aspects of ore source, production capacity, quality control ability, etc.

Select suppliers with stable ore sources and good reputation to ensure the purity and consistency of raw materials.

Raw material testing and analysis

Strict chemical composition analysis is carried out on each batch of incoming sodium feldspar ore, and the content of components such as Na₂O, Al₂O₃, SiO₂, Fe₂O₃, TiO₂, etc. is detected using equipment such as X-ray fluorescence spectrometer (XRF).

Ensure that the Na₂O content is ≥11%, the Fe₂O₃ content is ≤0.2%, and the TiO₂ content is ≤0.1% to meet the needs of high-end industries.

Return or downgrade raw materials that do not meet the standards to ensure that the quality of raw materials entering the production link meets the standards.

 

Production process control

Crushing and grinding

Use efficient jaw crushers, cone crushers and ball mills to crush and grind the ore to the target particle size (usually 100 mesh to 600 mesh).

The grinding process is monitored in real time by a particle size analyzer to ensure uniform particle size distribution and avoid coarse or fine particles affecting product quality.

 Purification process

Magnetic separation: Use a high gradient magnetic separator to remove ferromagnetic impurities (such as Fe₂O₃) in the ore.

Flotation: Remove non-magnetic impurities such as titanium and calcium through the flotation process to further improve the purity of sodium feldspar.

Washing and drying: Wash the purified sodium feldspar several times to remove residual flotation agents, and then remove moisture through drying equipment to ensure the dryness and fluidity of the product.

High temperature treatment and cooling

During the high temperature melting process, strictly control the furnace temperature (usually 1200°C to 1400°C) and the insulation time to ensure the chemical stability of sodium feldspar.

Through the rapid cooling process, the changes in the crystal structure are avoided and the physical properties of the product are ensured.

 

Quality inspection and analysis

Particle size test

Use laser particle size analyzer and sieving method to detect the particle size distribution of sodium feldspar powder to ensure that key parameters such as D10, D50, and D90 meet customer requirements.

Chemical composition analysis

Use X-ray fluorescence spectrometer (XRF) and inductively coupled plasma emission spectrometer (ICP-OES) to accurately determine the content of Na₂O, Al₂O₯, SiO₂, Fe₂O₃, TiO₂ and other components in sodium feldspar.

Ensure that the Na₂O content is ≥11%, the Fe₂O₃ content is ≤0.2%, and the TiO₂ content is ≤0.1%.

Physical property test

Whiteness test: Use a whiteness meter to detect the whiteness of sodium feldspar to ensure that it meets the requirements of ceramics, glass and other industries.

Density test: The density of sodium feldspar is measured by a densitometer to ensure its stable physical properties.

Melting point test: The melting point of sodium feldspar is measured using a high-temperature furnace to ensure its stability in a high-temperature environment.

Application performance test

Simulate the actual production environment to test the performance of sodium feldspar in processes such as ceramic blanks and glass melting.

Provide detailed test reports to help customers optimize production processes.

 

Production environment management

Clean production

Keep the production workshop clean, clean the equipment and the ground regularly, and reduce dust and impurity pollution.

Use a closed production line to avoid the impact of the external environment on product quality.

Equipment maintenance

Regularly maintain and calibrate equipment such as crushers, grinders, magnetic separators, etc. to ensure their normal operation and accuracy.

Establish equipment maintenance records to promptly discover and solve potential problems.

Personnel training

Provide professional training for production personnel to improve their operating skills and quality awareness.

Regularly organize quality management and safety production training to ensure that employees are familiar with quality control processes and operating specifications.

 

Quality Management System

ISO Certification

Establish and implement ISO 9001 quality management system to ensure the normalization and standardization of production process.

Continuously improve the quality management system through regular internal audits and external assessments.

Quality Traceability

Establish a complete quality traceability system to record the production process and test data of each batch of products to facilitate problem tracing and improvement.

Through barcode or QR code technology, the whole process of product traceability from raw materials to finished products can be realized.

 

Customer feedback and improvement

Customer feedback

Collect customer feedback on product quality and solve existing problems in a timely manner.

Establish a customer satisfaction survey mechanism to regularly evaluate customer satisfaction with products and services.

Customized service 

Provide customized sodium feldspar products and technical support according to customer needs.

Provide customers with detailed product application suggestions to help them optimize production processes.

Continuous R&D

Invest in R&D resources to develop high-purity, high-performance sodium feldspar products to meet the changing needs of the market.

Cooperate with universities and research institutions to carry out research on sodium feldspar application technology to enhance the added value of products.

 

As a sodium feldspar manufacturer with its own raw ore resources, Henan Ankai New Materials Co., Ltd. relies on strict raw material screening, advanced production technology and a comprehensive quality management system to ensure the high purity and high performance of each batch of sodium feldspar products. In the future, Henan Ankai New Materials Co., Ltd. will continue to focus on quality and customer needs, provide global customers with better sodium feldspar products and services, and promote the efficient development of various industries.

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