RAMPF Giessharze to present first BIO electro casting system at Productronica 2011

Visitors to Productronica, the world leading trade fair for innovative electronics production, will be able to see two highlights from RAMPF live and in action at Stand 260 in Hall A3. With the development of a two-component BIO electro casting system made of polyurethane, RAMPF Giessharze is responding to the market's growing awareness of ecological issues. RAKU-PUR® 21-2499 casting material has been developed based on renewable raw materials. Thanks to the COD (Curing On Demand) equipment integrated into the DC-CNC low-pressure system from RAMPF Dosiertechnik, the material cures after just three minutes. The BIO system is suitable for casting electrical and electronic components.

With a mix viscosity of 3,200 mPa*s, solvent-free RAKU-PUR® 21-2499 makes the casting process easy. The BIO electro casting system offers excellent thermal conductivity of 0.6 – 0.7 W/mK and good thermal endurance and thermal schock resistance (from -40 to +130 °C). Due to its low exothermic reaction, it demonstrates low shrinkage and stress during curing. Even with thin layers of 6 mm, the product range complies with fire protection class V0 in accordance with UL94, extinguishing a flame within 10 seconds. During the development process for this material, the experts from RAMPF completely eliminated the use of flame retardants containing halogen. This ensures the two-component system also conforms to the European RoHS directive 2002/95/EC. The use of non-abrasive fillers means the green casting resin can be processed on all commercially available two-component mixing and dosing systems. The standard pot life for processing the system is 10 to 15 minutes. At Productronica, RAMPF Dosiertechnik will be giving a live demonstration of accelerated curing of the casting material using Curing On Demand, a contactless method of introducing energy into the casting material. Infrared radiation is used to heat the material to 90° Celsius. The high temperature speeds up the reaction of the polyurethane casting material and it cures in a maximum of three minutes. The COD system was developed by Swiss company Vulkan AG, which manufactures tailored heating technology solutions for the industrial sector, and made available to RAMPF Dosiertechnik for use with BIO electro casting materials. Curing On Demand has already become established in the automotive supplier sector as a method for speeding up the curing process when bonding plastic parts. But a casting material will be cured using COD for the first time at Productronica.
The compact DC-CNC dispensing cell is the optimum solution for the 2D or 3D application of casting, sealing and adhesive systems. The basic set-up of the fully enclosed DC-CNC is equipped with an integrated control cabinet and a two-component material conditioning system. Further features include the modular control solution incorporating a Siemens Sinumerik control system, and integrated process control for continuous monitoring of pressure, fill level and speed. The mixing and dispensing system can optionally be equipped with a high-pressure rinse agent recycling system, high-pressure water rinsing or various items of automation equipment depending on the application in question.

Once again, companies in the RAMPF Group are demonstrating how they work hand in hand as system suppliers of reactive resins and machine systems. RAMPF Giessharze is one of the leading companies in the field of reactive casting resins for sealing, casting, bonding and designing. The plastics specialist has been manufacturing casting materials based primarily on polyurethane and epoxy and silicon in its laboratories since 1980. RAMPF Giessharze works with its sister company RAMPF Ecosystems to develop polyols based on renewable raw materials. In order to ex-pand the potential applications of renewable raw materials in the production of polyurethane systems, RAMPF Ecosystems has been modifying and functionalising renewable raw materials since 1999. The Pirmasens-based company focuses primarily on native plant oils such as rapeseed oil. Known as Recypols, these materials flow back into the polyurethane production chain.
“Our formulations are developed to respond to the needs of our customers and offer customer-specific systems for new markets, too,” explains Jean-Michel Pouillaude, Key Technology Manager Electro Casting Resins at RAMPF Giessharze.

 

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