Views:240 Author:Feiya Publish Time: 2018-03-30 Origin:Site
1. L method: that is, the most basic method COPYSURFACE, this is a method taught by a Taiwanese professor.
2. Cutting method: In many cases, when we do a parting pattern after we have done a good parting pattern, we find that we can't separate and there are many green lines and red dots. At this time we can choose the cutting method. The specific approach is: directly The parting surface is duplicated and then extended to the front mold direction to the thickness of the front mold core. The mold is closed to generate the front mold core, and then an entity is formed as the rear mold core. The front mold part is cut off with the mold split, and then the reference part is directly CUTOUTed out. After the mold kernel cavity;
3. Strength – When plastic injection molding medical devices, the strength of the device is a key consideration. The device must be designed to successfully function for its intended purpose, environment and service life. You need to make sure you're using the best resin for the medical device, without overpaying for strength properties the device does not necessitate.
4. Environment Conditions – The environment in which a medical device will be exposed must be accounted for during the resin selection process. Environment conditions may include temperature extremes, moisture, humidity, chemicals, bodily fluids, radiation, etc.
5. Implantation or Direct Contact – If the medical device is intended to be implanted or if it will be in direct contact with bodily fluids, the plastic injection molding manufacturer must use a biocompatible resin that meets FDA regulations.
6. Sterilization or Chemical Exposure – If the medical device is intended to receive sterilization treatment or will be exposed to chemicals the resin chosen must have chemical-resistant properties.
7. One Time Use or Re-Use – Medical devices that are designed to be re-used typically require materials that have corrosion-resistant properties. However, one time use medical devices may not require materials with corrosion-resistant characteristics, which can potentially save on overall product development costs.
8. Overmolding – If a medical device requires overmolding, the plastic injection molding company must ensure the materials are compatible so they bond well during overmolding, as well as maintain the bond for the designated service life of the device.