Seamless splicing method for circular metal mould tape with optical micro structure aggregate on surface

An optical microstructure and seamless splicing technology, applied in the field of optical mold manufacturing, can solve the problems of sub-board seam burrs, the inability to ensure the absolute fit of the seam, and the inability of the weld to be completely filled and filled. Ablation, strong and not easy to crack, the effect of mechanical strength guarantee

Inactive Publication Date: 2014-08-13
田武学 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Since it is impossible to ensure that the seam fits perfectly without gaps and that the left and right sides of the seam are absolutely on the same plane, when the seam is electroformed, there will be burrs and unevenness on the daughter board that cannot be removed.
Some patent documents report that the seam is welded from the back by laser welding, but because laser welding is hot-melt welding, local high temperature is inevitably generated, and due to the influence of thermal expansion and contraction and thermal stress, the left and right sides of the welded seam The optical microstructure is geometrically deformed, and the edges are squeezed, resulting in larger gaps and dislocations, and because the welds can no longer be completely welded and filled, the seams of the electroformed daughter boards also have burrs

Method used

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  • Seamless splicing method for circular metal mould tape with optical micro structure aggregate on surface

Examples

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Effect test

Embodiment

[0022] The peelable single-sided tape used in the embodiment is 3M898 fiber tape of 3M Company in the United States; the A / B structural conductive adhesive is TD-8813 high-strength electronic conductive adhesive produced by Dongguan Yantai Adhesive Co., Ltd.; the two-component structural adhesive It is Wuhan double bond DB8011 two-component epoxy structure AB glue.

[0023] 1. Make two unit small-area flat metal master templates A1 and A2, the size of which is not less than 500mm×500mm. Cut, polish, and corner the two flat metal master templates to ensure smooth end faces and good straightness . The processed metal plates are B1 and B2, the size is 480mm×480mm, and the inclination angle of the corresponding edge is 30 degrees.

[0024] 2. Put the well-polished metal plates B1 and B2 side by side on a plane according to the required size and grain structure direction, so that the edges with inclined angles are close to each other, and match until there is no gap in the eyes, a...

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Abstract

The invention discloses a seamless splicing method for a circular metal mould tape with an optical micro structure aggregate on the surface. The seamless splicing method for the circular metal mould tape with the optical micro structure aggregate on the surface is characterized in that a peelable adhesive tape is adopted for sealing and pasting a seam in the front, a room temperature cured A/B structure conductive adhesive is used for packing the back of the seam, and a method that the seam is fixed by metal sheet and two-component structural adhesive from the back is adopted for treating the seam; meanwhile, an electroforming process is combined, and finally a super large circular tape metal template is formed. The seamless splicing method for the circular metal mould tape with the optical micro structure aggregate on the surface has the advantages that the seam is smooth and ablation-free and mechanical strength can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of optical mold manufacturing, in particular to a method for seamless splicing of ring-shaped metal mold belts with optical microstructure aggregates on the surface. Background technique [0002] Optical microstructure aggregates, such as microprism arrays, microlens arrays, Fresnel lens arrays, etc., can be manufactured through large-area replication of plastic resin on molds with these microstructure aggregates, that is, ultra-precision nanoimprinting, which can be manufactured with Functional films with different optical effects. Such as reflective film with micro-prism array, light-enhancing film with micro-lens array, and solar concentrator film with Fresnel lens array. [0003] In order to achieve the purpose of high-precision, large-area, and continuous imprinting and copying of the optical microstructure assembly on the plastic resin, it is necessary to use a ring-shaped belt-shaped template with th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D2/00
Inventor 田武学
Owner 田武学
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