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Home > Portable contact lens case 240ton injection molding machine and mould making

Portable contact lens case 240ton injection molding machine and mould making

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A contact lens is provided that has visible inversion marks on the lens. The marks include a plurality of recessed spots having side walls, a substantially convex bottom surface, and a relatively shallow maximum depth of between about 7.5 microns and 12 microns. The recessed spots provide a highly visible marking indicia on a contact lens with maximum comfort to wear.

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Light transmission devices, such as lenses and windows for portable electronic devices, are produced using an injection/compression molding technique in which a light transmission device mold includes an integral runner in substantially the same plane and with substantially the same wall thickness as the light transmission device to be produced.

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Dec 22, 2010 · So now the final step is to automate this process. Rather than press molding by hand, injection molding is the way to go for quantity. Below is a family mold with four slightly different variations of the same lens. This is currently being fabricated by Protomold. I should get parts back in the second week of January.

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US9149964B2 - Method of molding, process for producing lens, molding

Molded articles, such as a lens, are produced by multiple repetitions of a transfer process composed of the transformation step of bringing a transfer member ( 62 ) provided with a transfer configuration area consisting of the same configuration as that of a lens part with aspherical configuration or the configuration opposed to the lens part with aspherical configuration into contact

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US4981634A - Injection molding process operating without opening the mold

An injection molding process creates a micro-cleanroom environment inside a mold cavity which can stay closed to airborne contaminants while ejecting and transferring the molded part out. The molded part is formed and solidified at a parting-line plane within the mold cavity, then is carried rearward on the movable mold insert to a second plane where it is stripped off and …

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A plastic molded article has an external appearance of a coated article and is formed by injection molding using a mold with a surface shaped by forming machining marks in the form of recesses over the entire mold surface. The resulting plastic molded article has a center line average roughness of the surface shaped of the plastic molded article less than 0.5 μm and one of …

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4.4 Injection Moulding The injection moulding process can be used for manufacturing parts from both thermoplastic and thermosetting elastomers. The process is quite similar to the Fig. 8 Schematic drawing of the extrusion process Bio-Medical Applications of Elastomeric Blends, Composites 247 Fig. 9 Schematic of the injection moulding process

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Jun 01, 2006 · Include molding machines, controls, robots, QMC systems, and hot-runner components. New developments appear in boldface type. A.B. MACHINERY Booth 9463 Introducing AB-400 floor-standing semi-automatic injection machine with 5-ton clamp and two-stage injection capable of up to 12,000 psi and 0.5-oz shot size.

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