How to ensure the quality control of silicone products?

Raw material testing: Each batch of silicone raw materials must undergo strict quality testing before entering the factory. This includes but is not limited to visual inspection (color, transparency, impurities), physical performance testing (hardness, tensile strength, tear strength), chemical performance testing (acid and alkali resistance, aging resistance), and microbiological testing (particularly important for medical and food grade silicone). Through these tests, unqualified raw materials can be detected and removed in a timely manner to prevent them from flowing into the production line.

Storage management: Ensure that the warehouse is dry, ventilated, and protected from light to prevent raw materials from getting damp, heated, or contaminated. At the same time, the first in, first out principle is implemented to ensure that raw materials are used within their validity period and reduce performance degradation caused by prolonged storage time.

2、 Production process optimization

Formula design: Based on the application scenarios and performance requirements of the product, scientifically design the silicone formula. A reasonable formula can not only meet the basic functional requirements of the product, but also improve production efficiency and reduce costs. When designing the formula, it is necessary to fully consider factors such as compatibility between raw materials, processing temperature, vulcanization time, etc., to ensure the stability and repeatability of the formula.

Molding process: There are various molding methods for silicone products, including injection molding, extrusion molding, rolling molding, and compression molding. Each molding method has its specific process parameters and precautions. For example, in injection molding, precise control of injection pressure, speed, and temperature is required to ensure the dimensional accuracy and surface smoothness of the product. In compression molding, attention should be paid to the design of the mold, preheating temperature, and time to avoid problems such as bubbles, missing materials, or deformation in the product.

Post processing: Post processing is a key step in improving the quality of silicone products, including deburring, cleaning, drying, and post vulcanization treatment. Through precise post-processing, the appearance, durability, and safety of the product can be further improved. For example, post sulfurization treatment can not only enhance the cross-linking degree of silicone, but also improve its heat resistance and chemical stability.

Finished product inspection: After each batch of silicone products is produced, strict finished product inspection is required. This includes visual inspection, dimensional measurement, performance testing (such as tensile strength, tear strength, aging resistance testing), safety testing (such as toxicology testing, fire resistance testing), etc. Through these inspections, ensure that the product meets the design requirements and relevant standards.

Customer feedback and continuous improvement: Establish an effective customer feedback mechanism to promptly collect and handle issues and suggestions discovered by customers during use. Identify weak links in product quality through data analysis and develop targeted improvement measures. At the same time, encourage employees to propose quality improvement suggestions and stimulate the enthusiasm of all staff to participate in quality management.