Every silicone impregnated projects exhibit a unique set of challenges, also require unique solutions accordingly.Medical (located in the field of medical equipment application has more than 30 years of experience in silica gel impregnated;In the meantime, we develop and optimize the special technology and equipment, to produce products to meet customer demand.
From the Angle of the generalized understanding, silicone impregnated can be divided into two processes: dip (sometimes referred to as the casting) and dip coating:
dip
Dip forming provides an alternative to the silicone molding process and cost-effective method, the latter usually require expensive metal mold.The process can be used in the shape of complex thin-walled rapid prototyping, can also be used for large-scale commercial production.Dip molding process includes the following steps:
- In the final parts of the production of a spindle shape.The spindle is usually composed of metal processing, but also can be processed by engineering plastics and ceramics.
- The spindle into the silicone dispersion, and then remove.When spindle will be coated with a thin layer of liquid silica gel film.Parts of the wall thickness can be adjusted by changing the impregnation times or silica gel percentage to control the dispersion of solid concentration.
- Spindle with silicone coating is placed in the oven silica gel sulfide.
- After vulcanization, silica gel, stripped down from the spindle, eventually become the finished product.
Our medical (impregnated experts to understand and control the influence each component quality and reproducibility of many variables.Process validation includes core shaft surface finish evaluation, impregnation and drawing Angle and speed, the dispersion viscosity and temperature, environmental conditions and curing parameters.
Dip coating
Dipping process can also be used to create a silicone coating on various medical equipment.All kinds of medical components, including metal, plastic, can be coated with a thin silicon film, then sulfide, eventually produce smooth surface, durable and biological compatibility.For some devices, such as casing and the syringes, needles, the equipment surface deposition layer not cured film as the lubricant can improve patient comfort.