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DuPontTM Vespel® CR-6100 Machined Parts
DuPont™ Vespel® CR-6100 is part of the family of DuPont™ proprietary products which offer superior chemical and creep resistance, particularly at elevated temperatures. Vespel® CR-6100 is a carbon fiber-reinforced fluoropolymer; therefore its machining characteristics are very similar to that of Teflon® products.
While most end users prefer to machine Vespel® CR-6100 in their own machine shop, Boulden Company has the capability to manufacture components to customer requirements. Parts with close tolerance requirements can be produced using state of the art CNC equipment with very short turn around delivery time.
Boulden can provide a complete, turn-key solution to end-users or repair shops that require Vespel® retrofits. After sending your components to one of our machining centers, we provide design and engineering support; manufacturing of the inserts, machining of the hardware to accept the inserts, and then the final install.
Vespel® CR-6100 can be machined on metal working equipment by standard lathe single point turning.
• Use carbide tipped tools with a 5 degree to15 degree rake angle at the front face and a positive (0 to 5 degree) back rake angle.
• For longer production runs, diamond tipped tools or inserts provide increased tool life.
• Use feeds and speeds appropriate for turning aluminum.
• Coolant is not normally required for turning, unless there is a particular need to maximize dimensional stability.
• Turned diameter surface finishes of 63 micro-inches (1.6 micro-meters) are typical using a visual surface finish reference guide.
• Bushing grooves, axial and spiral type, can be generated using standard carbide tipped broaching tools or end mills.
• As in machining all fluorocarbon materials, part temperature should be
maintained below 572°F (300°C) to avoid the possible liberation of a fine particulate fume. See the DuPont MSDS for Vespel® CR-6100 if more detailed information is required.
Read our most recent articles and news:
Krytox® Improves Safety; Prevents Fluid Leakage and Extends Double Mechanical Seal Life
May 09, 2013
Installing new agitators and pumps for a reactor with acidic off-gas for a large chemical plant presented challenges in system design, and provided direction for the planning team in determining what lubricants they would use for the system’s mechanical seals.
Hot Water Condensate Pumps: Upgrade with DuPont™ Vespel® CR-6100
Apr 26, 2013
Condensate return pumps often cause reliability problems. Hot water can vaporize, causing pumps to run dry. Hot water is also a notoriously poor lubricant, resulting in excessive wear of traditional materials. Vespel® CR-6100 has been used in dozens of condensate pumps over the years with excellent results. The first known pump to be upgraded to Vespel® CR-6100 was a condensate pump in a refinery, and this simple upgrade increased the MTBR of the pump from 4 months to 9 years.
The TEN PUMP RULES for Optimum Pump Performance - Rule #2: PROPER LUBRICATION, Part 1
Apr 06, 2013
Correct lubrication is essential to pump reliability. Studies have shown that up to 30% pump failures are bearing-related, and nearly all of those failures are due to improper lubrication. In the case of pumps (and the motors or turbines driving the pump), the lubricant can be either oil or grease, and the guidelines for successful application can vary depending on the type of bearing—whether plain, rolling element, or tilt-pad.