What is the injection molding process of medical parts?

What is the injection molding process of medical parts?

The injection molding process for medical parts is a complex and delicate process that involves several key links to ensure that the quality and performance of the final product meet the stringent requirements of the medical industry.

Medical parts injection molding process mainly includes the following 6 aspects of the steps:

(1) Product analysis and design

Perform detailed product analysis and design according to the specific requirements of medical parts, including size, shape, function, and required biocompatibility and corrosion resistance. This stage is the key to ensure the smooth progress of subsequent production, and it is necessary to fully consider multiple factors such as material selection, mold design and injection molding process.

(2) Mold design and manufacturing

According to the requirements of product design, mold design, including determining the mold structure, size and material. Subsequently, high-precision machine tools and processes are used to create molds that meet the requirements. The precision and quality of the mold directly affect the precision and appearance quality of the injection molding product.

(3) Select appropriate medical plastic materials and pre-treat them

Medical plastic materials need to have high strength, biocompatibility, chemical corrosion resistance and other characteristics. The pre-treatment process includes drying, dust removal, color allocation, etc., to ensure the quality and stability of raw materials.

(4) Enter the injection molding stage

The pre-treated plastic raw materials are put into an injection molding machine and heated to a molten state. The molten plastic is then injected into the mold at high pressure, where it is cooled and cured to form the required medical parts. In this process, parameters such as temperature, pressure and speed of the injection molding machine need to be strictly controlled to ensure the quality and performance of the product.

(5) demoulding and post-processing

Remove the injection parts from the mold and carry out the necessary post-treatment, such as trimming, polishing, spraying, etc., to improve the appearance quality and performance of the product.

(6) Quality inspection and control.

Strict quality testing of injection parts, including size, appearance, performance, etc., to ensure compliance with the standards and requirements of the medical industry. Only through strict quality testing can we ensure the safety and reliability of medical parts and accessories.

Throughout the process, attention also needs to be paid to the maintenance of a dust-free or low-microbial environment, as well as the use of medical-grade plastic materials to ensure that products meet the special requirements of the medical industry.

To sum up, the injection molding process of medical parts is a complex and delicate process that requires strict control of all aspects to ensure that the quality and performance of the final product meet the strict requirements of the medical industry.