Characteristics And Maintenance Methods Of Medical Mold

Characteristics of medical molds

1. Wide range of application, easy processing, good chemical resistance, toughness, strength, rigidity and heat resistant steam.

2. Good biocompatibility but not easy to bond, dimensional stability, radiation resistance.

3. Long service life, accurate manufacturing positioning, small accuracy difference, reliable hot runner operation and low cost.

How to maintain medical moulds?

1. The edges of medical molds are polished after long-term use. After sharpening, the cutting edge surface must be demagnetized and cannot be magnetic, otherwise it will be easily blocked. Companies using molds should make detailed records and statistics on the use, storage (lubrication, cleaning, rust prevention) and damage of the molds. Under the normal operation of the injection molding machine and molds, the performance of the molds should be tested and the dimensions of the molded plastic parts should be measured. This information allows us to determine the state of existence of the mold and find out the damage of cavities, cores, cooling systems, and parting surfaces. According to the information provided by the plastic parts, the damage status of the mold and the maintenance measures can be determined.

2. Elastic parts such as springs are easily damaged during use and usually fracture and deform. The method used is replacement. In the process of replacement, be sure to pay attention to the specification model of the spring. Spring specifications are determined by the color, outside diameter, length three. Only if all three are the same can they be replaced. Imported spring quality priority.

3. Medical die in the process of use, the punch is easy to break, bending, stamping sleeve is generally bitten, punch and punch sleeve damage is usually replaced with parts of the same specifications. The parameters of punching machine mainly include working parts size, mounting parts size, length size, etc.

4. Fasten the parts and check if the fasteners are loose or damaged. The method used is to find parts of the same specification for replacement.

5. Pressing parts such as pressure plate and Youli glue. Unloading parts such as stripper plate, pneumatic ejector, etc. When repairing, check the relationship between parts and accessories and any damage, repair the damaged parts, check whether the pneumatic ejector is leaking, and take measures for the specific situation. If the air hose is damaged, replace it. It is necessary to focus on following up and testing several important parts of the mold. The role of the ejector and guide parts is to ensure the ejection of the mold's plastic parts. If any part of the mold gets stuck due to damage, it will cause a stoppage. Therefore, mold ejectors and guides should be lubricated frequently (a suitable lubricant should be selected) and regularly inspected for deformation and surface damage. Once found, they should be replaced in time. After completing a production cycle, professional anti-rust oil should be applied to the working surface, moving and guiding parts of the mold, especially for the protection of the elastic strength of the bearing parts of the mold with rack and pinion and the spring mold to ensure that they are always in working condition; with the continuous extension of production time, scale, rust, sediment and algae are easily deposited in the cooling channel, making the cross-section of the cooling channel smaller and the cooling channel This greatly reduces the heat exchange rate between the coolant and the mold, and increases the production cost of the enterprise. Therefore, attention should be paid to the cleaning of the cooling channels. For hot runner molds, the maintenance of the heating and control system is very important because it helps prevent production failures.