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Strength of Hinges
on many of its die cast. hinges. · The flexibility of a hinge depends on its design and the material from. which it is made. · A glass reinforced nylon hinge is significantly less strong than a. similar zinc alloy hinge, however it's greater flexibility will allow it to. share the load more
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Hinge Optimization
in inventory. A better solution is to use the hinge on the right, this. provides even easier door removal and replacement. than a lift-off, low cost installation, attractive looks and. reversibility. (1110-U122/U126). HINGES. HINGE MATERIALS. MATERIAL OPTIONS. Glass reinforced PA (nylon) low cost
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Sizing up Hinges
such as glassreinforced nylon may make up for their reduced strength by sharing load more equally. This permits more leeway for manufacturing tolerance and imperfect installation. For lift-off hinges, the worst consequence of an installation error is that one hinge is forced to carry the entire weight of the door
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Gas-Assist Molding: Not just for hollow parts
with both stiffness and breakage. Gas-assist molding using the same 15% glass-filled nylon as in the original paddles improves tolerances and weight consistency (< 1 lb with no breakage). A one-piece gas-assist part replaced a three-piece plastic and metal oven handle for GE Appliances. Gas-assist
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Plastics that don't wear out their welcome
urethane bearings led to the selection of a nylon 6/6 compound with aramid fiber and PTFE. The bearings separate the spinning metal cutting blades, which instantly cut through lines, nets, and weeds before they become entangled or damage the running gear. The bearings are water lubricated
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Joining Plastic
, with slight changes, the process can be used to join both filled and unfilled nylon. To fuse unfilled nylon, a thin, nickel-chrome blade, rather than a platen, is heated to about 1,100 F. The heated blade is brought to within 0.0005 in. of the material in a brief heating cycle. The blade
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Casing the extrusion joint
corrosive conditions. Both nylon and neoprene are good choices for insulation, though neoprene must not contain carbon as an additive. Holes for fasteners can be drilled and reamed or just drilled, depending on the application. For low-stress joints, bolt-to-hole clearances up to 0.040
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Fighting friction with solid-film coatings
temperatures over 400F may cause numerous eruptions on the coated surface. To avoid this, preheat the parts to the cure temperature to expel the trapped gases before coating. Another option is to cure parts below 400 F. Engineering plastics that can be coated, include nylon, polyetheretherketone (PEEK