3. TendonsEfficient design:-Increase the sustainability of the product. -Increase the bending resistance of the product. the tendon is detailed on the product functionality is enhancing the ability for product, helping to reduce the material on to save cost and weight that still ensures the ability to do the equivalent, even better. b) types of products need durable increase in tendon: shell, outer parts need out there, good quality gloss with light weight. c tendon) design:Design for tendon thickness as thin as possible productsIf the product requires firmware higher hardness gap the tendons as fall short again. Tendon geometry shape increase durability: thickness, altitude, angle of taper are related with each other, if the tendon thickness is too large can result in sunken place opposite the tendons and if too big taper angle makes the top tendon was too small to cause difficulties for the process to complete. The tilt of the tendon of each side about 10, if the stereotypes are polishing, the tilt of the tendons can be 0.5°. Ribbed bottom thickness allowed by 0.8 times the thickness of products at home to tendons. Usually, the bottom thickness tendon from 0.5-0.8 times the thickness of products in where the tendons. Location of tendons to increase durability, convex lobes (bosses) and the gussets: tendons to increase durability must be straight direction with open molds. d) some note:Tendon thickness should not exceed half the thickness put tendons but in less material shrinkage and not affect the aesthetics, then can a little thicker. However, should consider when designing for this easy brought to the dents on the surface opposite the latest tendons. Tendon thickness also affects the priority flow in the extrusion process-the cause brought to the welding line defects and pitting. The tendon should parallel design, the distance between the tendons should at least equal to 2 times the thickness → help reduce cooling system and the exhaust trench in the mold. The tendons should be placed along a direction to achieve solid hardness. Can put horizontal but this does not bring high efficiency by putting along. When designing the tendons cross the junction, the place of the transition should be a point to ensure the hardness and ability to resist stress for the product. Boost tendon hard hard to increase the angle, lateral, convex lobes of the product.
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