Casting Impregnation Shop
Why Impregnation?
What Can be "Imprexed?"Wherever castings of any metal must withstand hydrostatic, hydraulic, or pneumatic pressures, then they can be Imprexed.
The Process
Impregnation Methods
In the Imprex Casting Impregnation Shop, each stage of the VPI process is monitored and documented. Quality and custom processes, such as basket size, part orientation, custom baskets and dividers, are engineered prior to the product arriving at our loading dock. Once here, a travel tag with process specifications and requirements follows the product each step of the way – from the time it’s unloaded off the truck to shipment back to the customer. Customer requirements and specifications are noted and products can be traced back to identify the systems operator, process specifications, time in the shop, and leak testing documentation. We test our resins weekly, compare batch numbers, and audit our equipment specifications. A complete history of a batch can be traced. We also keep training records of our employees, who are trained to carry out and document procedures. Contact UsIMPREX, Inc.
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Impregnation is the fastest, most effective process for eliminating the inherent problems of porosity in cast and powdered metal. Porosity can be caused by numerous factors in the design, tooling, or pouring of casting and forming of P/M parts. Impregnation prevents leakage of fluids and gases, prevents plating defects, increases machinability, reduces scrap and increases profits. Impregnation does not alter the exterior dimensions and appearance of the part or component.
Imprex VPI systems eliminate porosity by internally sealing parts through various methods of application. The process varies slightly depending on the requirements of the parts or the sealant used, however, the basic steps include removing air from the pores, filling the pores with sealants, removing excess sealant from the exterior of the part, and curing the part.Imprex Vacuum Pressure Impregnation Systems
Imprex pressure vessels are built to ASME Code. What Can be "Imprexed?"Wherever castings of any metal must withstand hydrostatic, hydraulic, or pneumatic pressures, then they can be Imprexed.
Our Product Line
Our Imprex 3-phase system is best suited when utilizing a variety of difficult-to-handle impregnation mediums and potting compounds, or as a multi-purpose prototype system for experimentation with small quantities of a variety of impregnating solutions. For more information about this system, click here.
Systems include these basic components:
Systems can also be outfitted with the following options, if applicable:
Our Commitment To QualityImprex is committed to providing the highest quality products and services to its customers. Imprex pressure vessels are built to ASME Code . Before shipping to a customer, Imprex's VPI Systems are inspected, tested, evaluated, and calibrated by an Imprex engineer. Systems can be built to ASME code and designed and engineered according to individual requirements. Each Imprex VPI System is fully assembled and tested before shipment is made. The systems are then disassembled into the largest sized components practical for shipment and installation to minimize the start-up time at your facility. Our facility is ISO 9001:2008 certified for high quality and reliability. On-site Installation and Quality Assurance VisitsAn Imprex representative will oversee your installation and provide training in its operation. Our personnel include mechanical, electrical and production engineers and certified ASME welders. Our customer service policy includes yearly visits to your facility for maintenance of your VPI System. We'll tune-up and recalibrate the system, and offer additional training, if needed. Of course, you can contact us at any time for assistance. Our response time is immediate. Our reputation is built on our customers receiving the goal is to ensure that our customers receive the highest quality product! Quality SpecificationsImprex meets quality specifications and process requirements as defined in the specifications listed below.
Spare PartsImprex VPI Systems' Spare Parts Department has a comprehensive range of quality spare parts. We maintain complete documentation on all our VPI Systems, so we are able to provide you exactly what is needed to keep your unit operating efficiently. Our quality control department ensures the spare parts and equipment meet all specifications and certification requirements. Whether you're looking for technical support to help identify part numbers, or solve production problems, Imprex Spare Parts Department is here to provide the support you need. Spare parts can be ordered by phone, e-mail or fax during our office hours, which are 7 a.m. to 4:30 p.m. Monday through Friday. For spare parts service and information, contact:
Contact UsIMPREX, Inc.
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Imprex has been designing, engineering, manufacturing and installing Vacuum Pressure Impregnation (VPI) equipment since 1958. Our VPI systems are installed all over the world in applications from electronic equipment and coil windings to motors, generators, transformers, automotive parts, pumps, and more.
Programmable control systems are designed for each Imprex VPI System with operator-friendly touch screens and a variety of options for easy operation. Programming of processes is designed to meet customer specifications, and ensure repeatability and long resin life. Up to 80 adjustable set points are available and include vacuum level and time, pressure level and time, resin and part temperature, fill level, drain pressure, and any other important parameters for process control. PLC/computer screens available in several languages, including Russian, Chinese, and Vietnamese.
For a high degree of flexibility, Imprex offers a 3-phase VPI system. To read more, click here.