Magna-Tech Electronics Components Sealing Division
Vacuum impregnation sealing provided by the electronic components division of Magna Tech is effective for wire harnesses, terminated connectors, thermistors, over-molded coil windings, and insert and injection mold components that are exposed to harsh environmental conditions. The sealing process ensures part integrity. There is no change in the appearance or dimensional attributes of the components.
Vacuum impregnation sealing of these types of components can be performed more economically than applying epoxies and silicone blockers. Additionally, vacuum impregnation is a consistent batch process as compared to hand or spray-on applications.
Tiny voids, holes and micro leak paths are inherent in many molded electronic components and wire harnesses. These conditions can result in intrusion of foreign materials such as humidity, salt spray, oil, and other corrosive agents, which can ultimately lead to part or field failure.
The electronic components division of Magna Tech provides advanced sealing technology capabilities include using the latest evolutionary resin technology thereby creating high sealing yields. The resin used is a very high quality cured polymer, which resists common solvents, including: oils, glycol, chlorinated and fluorinated solvents, mild caustics, acid solutions and water. The resin is formulated with the highest quality monomers to maximize the service operating range of the polymer. The resin is capable of continuous operating temperatures of up to 154 C (300 F).
The vacuum impregnation process fills and permanently seals the leak paths and voids of the part. This process is effective, efficient and consistent; saving you the time and resources associated with failed or suspect components in the field.
Click Hereto learn more and read actual customer quotes from Siemens and Amphenol!
Components currently being impregnated in our electronic components division include:
- ABS Brake Sensors
- Solenoids
- Fuel Vapor Management Systems
- Fuel Tank Power Pass-Throughs
- Thermistors
- Marine Outboard Motor Sensors
- Fuel Injector Systems
- Wire Harnesses
- Stators
- Resistors
- EFS Sensors
- Speed Sensors
- Bulk Pre-cut Wires
Properties of the Cured Resin:
- When cured, the resin maintains flexibility
- The cured resin has characteristics of a firm, but flexible plastic
- Hardness Shore D (ASTMD2240) 70
- Temperature capability, 300 F (154 C) continuous service
- Dialectric Constant (ASTMD-150) @100 Hz 3.85, @1KHz 3.60, @1MHz 3.2
- Resistant to common solvents, including oil, glycol, chlorinated and fluorinated solvents, mild caustics and acid solutions
- Cured resin contains a UV dye that will allow detection with a black light
What are we replacing:
- Potting compounds
- Silicone blocked wire
- Scrap parts
- Glues or other topical adhesives
- Labor intensive operations
Advantages:
- No dimensional changes
- High capacity and quick turn around
- Economic advantages
- Increased customer satisfaction
What is NOT Affected:
- Dimensional attributes
- Electrical properties
- Terminals, leads or pins
- There is no exterior visual evidence of sealing
Click Here to learn more and read actual customer quotes from Siemens and Amphenol!
Enviroseal provided by Magna Tech is effective for wires, wire harnesses, terminated connectors, thermistors, over-molded coil windings, and insert and injection mold components that are exposed to harsh environmental conditions. The sealing process ensures part integrity. There is no change in the appearance or dimensional attributes of the components.
Casting impregnation sealing at Magna-Tech Manufacturing is most effective on porous substrates such as metal castings and powdered metal components required to meet pressure retention specifications, or to improve machinability or finish quality of the part. Candidates for impregnation include parts manufactured to contain gases or liquids and parts that will be plated or coated with a surface finish. Parts can be impregnated in the as-cast or in the machined state.
The Vacuum Pressure Impregnation process takes place after the stator has been wound and the bracing system installed. VPI is the process developed for impregnation of the windings with epoxy resin that gives the premium epoxy system its unmatched quality. Epoxy resins are ideal as impregnants because, in their cured solid state, they are extremely tough, with excellent resistance to both moisture and practically all types of chemical contaminants encountered in normal motor application environments.
When you are looking for an industry-best solution for your machining needs, look no further than Patriot CNC.
Magna-Tech Manufacturing offers processes to remove rust and corrosion from ferrous materials. Production parts that cannot be used, or may be considered scrap due to corrosion, are candidates for Magna-Tech’s de-rusting services.
Magna-Tech Manufacturing provides Thermal Deburring services for applications that typically have inaccessible burrs such as internal and external flashing burrs, rough edge finishes and applications that have threaded holes.
Magna-Tech Manufacturing offers Iridite Conversion Coating, also known as Chromate Conversion Coatings. Conversion Coating is conductive and is designed to improve corrosion resistance for unpainted aluminum surfaces as well as increase adhesion of paint finish for aluminum and aluminum alloys.
Shipping containers often become contaminated from repeated use or from machining oils and other debris. Magna-Tech provides dunnage washing services to clean these contaminants from shipping materials. We utilize a fully automated system to provide fast and cost-effective service.
During casting, at least some of the hardening atoms remain in solution. If the part is elevated in temperature, the rate of nucleation and growth of these precipitates can be accelerated. This treatment is called artificial aging (T5) and improves strength through precipitate hardening. Some T5 treatments are performed for the purposes of stabilization rather than improving strength.