The article analyzes the causes of burn marks on medical injection-molded products from four aspects: material, process, mold, and equipment. It emphasizes that manufacturers should adopt whole-process control to reduce defect rates.

Although material shortage is caused by a combination of factors including raw materials, molds, injection molding processes, and the environment, such as issues with raw material characteristics and quality, mold design and wear, injection molding parameter settings and temperature control, as well as humidity and temperature fluctuations in the workshop environment, we can address it from the following aspects.

In the process of medical injection molding production, material shortage is a relatively common defect that seriously affects product quality and production efficiency. Medical products have extremely high requirements for the precision, performance, and safety of injection-molded parts.

Medical products have extremely high requirements for strength, toughness, and stability. Brittleness not only shortens the product's lifespan but may also pose safety hazards during use. Product brittleness is influenced by multiple factors, including raw materials, injection molding processes, and molds. The following explores strategies to address this problem.

In the field of medical injection molding production, product brittleness is a serious issue that significantly affects product quality and performance. Medical injection-molded products usually have extremely high requirements for strength, toughness, and stability.

In the field of medical device manufacturing, injection molding technology stands as a core process for producing critical components such as catheter connectors, surgical instrument handles, and in-vitro diagnostic equipment housings, owing to its high precision, efficiency, and scalability.

Medical injection molding, a core process in medical device manufacturing, directly impacts product supply stability and cost control. However, production lag—manifesting as extended cycle times, reduced yield rates, or frequent equipment downtime—frequently occurs. This phenomenon stems from multifaceted factors spanning technology, management, supply chains, and external environments.

By establishing end-to-end control systems—from material pretreatment to equipment maintenance—and leveraging advanced simulation and monitoring technologies, manufacturers can achieve precise defect prevention, meeting the medical industry’s stringent safety and reliability demands.

In the field of medical injection molding, residual stress in products is a crucial factor affecting device performance, service life, and safety. Take the piston of a certain brand of syringe as an example. Surface stress marks on it once led to a decrease in sealing performance, triggering a batch recall.

In the field of medical injection molding, product fracture is a core issue affecting production yield and clinical safety. From precision surgical instrument components to high-requirement implant shells, any micro-crack can lead to product rejection or even medical accidents.

In the field of injection molding for medical products, main runner adhesion is a common problem that affects production efficiency and product quality. Given the stringent requirements for material purity, dimensional accuracy, and surface finish in medical products, the issue of main runner adhesion can not only lead to production interruptions but also cause surface defects and even contamination risks in products.

Side wall dents in medical injection-molded parts compromise functionality and safety, with complex causes. This article proposes systematic solutions covering mold design, process optimization, material selection, and case studies to enhance product quality and competitiveness.