{"id":914,"date":"2026-03-17T17:45:57","date_gmt":"2026-03-17T09:45:57","guid":{"rendered":"https:\/\/www.jccncmachining.com\/?post_type=material_model&p=914"},"modified":"2026-03-17T17:45:57","modified_gmt":"2026-03-17T09:45:57","slug":"bronze-filled-ptfe","status":"publish","type":"material_model","link":"https:\/\/www.jccncmachining.com\/fr\/materials\/ptfe-teflon\/bronze-filled-ptfe\/","title":{"rendered":"PTFE charg\u00e9 de bronze"},"content":{"rendered":"

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Variantes de mat\u00e9riaux PTFE \/ T\u00e9flon<\/h3>\n\n\n\n\n\n\n\n
Nuance<\/th>\nNom courant<\/th>\nCaract\u00e9ristiques cl\u00e9s<\/th>\nApplications typiques<\/th>\n<\/tr>\n<\/thead>\n
PTFE charg\u00e9 de bronze<\/strong><\/td>\nBearing Grade (40%\/60%)<\/td>\nHighest wear resistance and thermal conductivity. Best for high-load sliding. Dark brown\/metallic appearance.<\/td>\nHydraulic guide rings, piston seals, bridge bearing pads, wear strips.<\/td>\n<\/tr>\n
PTFE vierge<\/strong><\/td>\nPure Unfilled<\/td>\nLowest friction and highest purity. Excellent dielectric properties. FDA compliant.<\/td>\nMedical components, chemical seals, electrical insulators.<\/td>\n<\/tr>\n
PTFE charg\u00e9 de verre<\/strong><\/td>\nT\u00e9flon renforc\u00e9<\/td>\nLower “cold flow” (creep) than virgin. Improved compressive strength. Chemical resistance maintained.<\/td>\nValve seats, structural gaskets, spacers.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Bronze Filled PTFE Machining Capabilities<\/h3>\n\n\n\n\n\n\n\n\n
Capacit\u00e9<\/th>\nDescription technique<\/th>\nAvantage Jucheng<\/th>\n<\/tr>\n<\/thead>\n
High-Precision Bearing Turning<\/strong><\/td>\nTurning internal and external diameters for large-scale hydraulic bushings with tight clearances.<\/td>\nWe achieve exceptional roundness and surface finishes (Ra 0.8\u03bcm), ensuring smooth sliding motion and reduced seal wear.<\/td>\n<\/tr>\n
Precision Wear Pad Milling<\/strong><\/td>\nMilling flat sliding surfaces and lubricant grooves into bronze-filled PTFE sheets.<\/td>\nOur vacuum workholding ensures absolute parallelism (+\/- 0.03mm) across large wear plates, critical for industrial slide ways.<\/td>\n<\/tr>\n
Heavy-Wall Seal Boring<\/strong><\/td>\nBoring thick-walled dynamic seals and piston rings with high diameter consistency.<\/td>\nJucheng utilizes vibration-dampened boring bars to prevent chatter, ensuring a perfect “crush-fit” for high-pressure hydraulic systems.<\/td>\n<\/tr>\n
Complex Lip Profiling<\/strong><\/td>\nCNC turning intricate “V-ring” or “U-cup” lip geometries in reinforced bearing materials.<\/td>\nOur ultra-sharp diamond-polished inserts ensure the bronze particles are cut cleanly, preventing the “pitting” that causes seal leakage.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Fabrication Guidelines for Bronze Filled PTFE<\/h3>\n

Thermal Conductivity Advantage:<\/strong>
\nThe bronze content allows heat to dissipate much faster than virgin PTFE. Conseil :<\/strong> This reduces the risk of thermal expansion-induced binding in high-speed bearings, but the part must still be monitored for size during machining.<\/p>\n

Tool Wear & Abrasiveness:<\/strong>
\nBronze is abrasive to standard tools. Conseil :<\/strong> We use high-grade carbide or PCD (Diamond) tooling to maintain sharp edges. Dull tools will cause the PTFE to smear over the bronze particles, ruining the bearing’s self-lubricating effectiveness.<\/p>\n

Weight & Handling:<\/strong>
\nBronze-filled PTFE is significantly heavier (higher density) than standard plastics. Conseil :<\/strong> We adjust our workholding and spindle acceleration parameters to account for the increased mass of the billets, ensuring safe and accurate turning.<\/p>\n

Strat\u00e9gie de refroidissement :<\/strong>
\nTo maintain a pristine surface, we use high-volume air blast or specialized synthetic coolants. This prevents bronze chips from scratching the soft PTFE matrix during the final finishing passes.<\/p>\n<\/div>\n

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Applications principales<\/h3>\n

Hydraulics & Pneumatics<\/strong>
\nPiston rings, guide strips, and backup rings that must operate under high pressure with minimum friction and maximum wear life.<\/p>\n

Automotive Suspension<\/strong>
\nShock absorber bushings and steering rack bearings that require durability and maintenance-free operation over thousands of miles.<\/p>\n

Civil Engineering<\/strong>
\nSliding bearing plates for bridges and building expansion joints that must support massive loads while allowing for thermal movement.<\/p>\n

Heavy Industry Pumps<\/strong>
\nThrust washers and wear rings in high-speed centrifugal pumps where heat dissipation and self-lubrication are critical for reliability.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

PTFE \/ Teflon Material Variants Grade Common Name Key Characteristics Typical Applications Bronze Filled PTFE Bearing Grade (40%\/60%) Highest wear resistance and thermal conductivity. Best for high-load sliding. Dark brown\/metallic appearance. Hydraulic guide rings, piston seals, bridge bearing pads, wear strips. Virgin PTFE Pure Unfilled Lowest friction and highest purity. Excellent dielectric properties. FDA compliant. […]<\/p>\n","protected":false},"featured_media":917,"template":"","meta":[],"class_list":["post-914","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/material_model\/914","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/media\/917"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/media?parent=914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}