Quality control of alumina ceramic linings during production is a multi-link, refined process involving raw material preparation, molding, sintering, surface treatment and inspection. The following is a detailed description of the quality control measures for these key links:

1. Raw material preparation

Raw material selection and proportioning: Selecting appropriate raw materials is the basis for ensuring product quality. The purity, particle size distribution and shape of the raw materials will affect the performance of the final product.

Reasonable proportioning can optimize the structure and performance of the product and improve the wear resistance and other related properties of the ceramic lining.

Raw material processing: The raw materials need to go through screening, crushing, grinding and other processes to ensure that the quality and particle size of the raw materials meet the production requirements.

Use advanced equipment and technology to process raw materials to improve the uniformity and consistency of raw materials

2. Molding

Molding method: The ceramic lining needs to go through a molding process to press the raw materials into the required shape and size. Common molding methods include dry pressing, isostatic pressing, hot pressing, etc.

Select a suitable molding method according to product requirements and production conditions to ensure molding accuracy and product quality.

Molding control: Strictly control parameters such as pressure, temperature and time during the molding process to ensure that the density and strength of the molded body meet the requirements.

Use advanced molding equipment and molds to improve molding accuracy and consistency.

3. Sintering

Sintering process: Sintering is the process of forming a strong bond between the raw material particles of the ceramic lining. Sintering temperature, insulation time and atmosphere control are important factors affecting the performance of the ceramic lining.

Adopt a strict sintering process and a determined computer temperature control system to reduce the generation of internal pores and ensure that the finished product is dense and not deformed.

Sintering control: Accurately control the temperature and time during the sintering process to ensure that the ceramic lining reaches the ideal sintering state.

Use advanced sintering equipment and detection technology to monitor the temperature changes and product quality during the sintering process in real time.

4. Surface treatment

Surface treatment method: The alumina ceramic lining needs to undergo a surface treatment process, including sandblasting, oxidation, spraying and other processes to improve its wear resistance and corrosion resistance.

Select the appropriate surface treatment method according to product requirements and application scenarios.

Surface treatment control: Strictly control the process parameters during the surface treatment process to ensure that the treatment effect meets the requirements.

Use high-quality processing materials and equipment to improve the consistency and durability of surface treatment.

5. Inspection

Inspection content: Ceramic linings need to undergo strict inspection processes, including dimensional inspection, appearance inspection, performance inspection and other processes.Use advanced testing equipment and technology to conduct comprehensive inspections on various performance indicators of ceramic linings.

Inspection control: Establish a complete inspection system and process to ensure the accuracy and reliability of inspection results.Timely processing and traceability of unqualified products to prevent unqualified products from entering the market.

In summary, the quality control of ceramic linings in the production process is a complex and delicate process involving raw material preparation, molding, sintering, surface treatment and inspection. By strictly controlling the process parameters and quality requirements of each link, the high performance and long life of ceramic linings can be ensured.