"Luer connector" process of medical device plastic parts
Release Time:
2022-07-15 14:21
The Luer connector is a standardized micro-impermeable connector, which is connected by a male Luer connector and a matching female Luer connector part. It is widely used in medical and laboratory instruments. It is named after the German instrument inventor Luer in the nineteenth century. name.
Luer fittings are convenient connection devices used in the medical industry, which greatly simplify the management of liquid and gaseous medical fluids. The luer connector can switch 4 infusion bags without inserting and removing the patient's infusion needle. The connector also allows multiple compatible fluids to be administered using the same line, reducing trauma to the patient.
Mold structure
The number of cavities in the luer connector mold is mainly 1*2 or 1*4 ranking method, the glue feeding method is side feeding glue, and the submerging glue is two kinds, and the ejecting method is generally ejector pin ejection.
materials used
1. ABS: ABS plastic has good comprehensive physical and mechanical properties, good impact toughness, good stiffness, hardness and fatigue strength; the thermal deformation temperature of ABS plastic is 85-110 ° C, and it has good cold resistance, Good electrical properties can be used as electrical insulating materials for general requirements; secondly, the material has good chemical stability, in addition to concentrated oxidizing acids, it is relatively stable to other acids, alkalis and salts.
2. PC: PC material has flame retardancy, wear resistance, oxidation resistance, etc. It is a non-crystalline plastic, with high-quality heat resistance, good transparency and high impact resistance and other physical and mechanical properties, and has efficient penetration. Light rate, refractive index and easy processing and molding characteristics.
Mold Precautions
1. When polishing, pay attention to the structural features of the tooth shape for protection
2. When matching the mold, pay attention to check that the step difference at the parting line of the product should be controlled within 0.02mm
3. In the design, the size of the seal should be set as the lower limit, in case the subsequent sealing is not enough, and then do the glue treatment.
Notes on injection molding process
1. According to the scientific mold test method, set a reasonable molding process
2. Regularly monitor the mold temperature and maintain the mold waterway regularly to ensure the smoothness of the waterway.
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