CN102354808B

CN102354808B - Manufacturing method for antenna

Info

Publication number: CN102354808B
Application number: CN 201110177956
Authority: CN
Inventors: 余章军
Original assignee: XIAMEN KAIMEIOU SANITARY WARE CO Ltd
Current assignee: Carnegie precision electronic plastic (Kunshan) Co., Ltd.
Priority date: 2011-06-29
Filing date: 2011-06-29
Publication date: 2013-08-14
Anticipated expiration: 2031-06-29
Also published as: CN102354808A

Abstract

The invention provides a manufacturing method for an antenna. A plurality of built-in antennas having laminated structures are arranged on an antenna pedestal surface or a mobile phone housing back surface, wherein the surfaces are in an injection-molded state; the laminated structure comprises the following parts from inside to outside: a vacuum coating layer as a first layer; a chemical copper coating layer as a second layer; a chemical nickel coating layer as a third layer; and a chemical gold coating layer as a fourth layer. Beneficial effects of the method are as follows: the antenna has antioxidation and anticorrosion performances; chemical performances are stable; the antenna surface is fine and smooth and has metal luster; besides, the antenna surface does not discolor and shed; and the antenna highly stands wear and tear. Moreover, the manufacturing cost is low and the yield is high; and therefore, the antenna provided in the invention is suitable for mass production.

Description

The manufacture method of antenna

Technical field

The present invention relates to a kind of manufacture method of antenna.

Background technology

Existing antenna for mobile phone carries out stereosopic printing or three-dimensional laser at the plastic cement blank, because its technology difficulty is higher, manufacturing speed is slow, and rate of finished products is low, is difficult to produce the cost of manufacture height in enormous quantities.

Summary of the invention

Purpose of the present invention provides a kind of manufacture method of antenna, and its technology is simple, and cost of manufacture is low, and the rate of finished products height, is fit to produce in enormous quantities.

The manufacture method of antenna of the present invention, antenna base surface or phone housing back of the body surface in injection mo(u)lding arrange some built-in aerials with layer structure, it is vacuum coating that its layer structure is respectively ground floor from the inside to the outside, the second layer is chemical plating copper layer, the 3rd layer is chemical Ni-plating layer, and the 4th layer is the chemical gilding layer; Its processing step is as follows:

(1) press the mould of the good product of graphic designs of antenna, and injection mo(u)lding plastic cement blank;

(2) by the graphic designs of antenna and make the smelting tool, install the smelting tool at blank then, purpose is the zone that covers in beyond the antenna pattern, prevents that it from plating metallic diaphragm;

(3) vacuum coating is packed cleaned above-mentioned blank in the vacuum chamber into, vacuumizes, and adds oxygen, nitrogen, carries out the ion bombardment, makes its surface active, and purpose is the adhesion that strengthens rete and basis material; Then, nickel plating, and nickel alloy film perhaps plate palladium, and palladium alloy membrane, perhaps silver-plated, and silver alloy film, perhaps copper facing, and tin-copper alloy film; For strengthening the adhesion between itself and the basis material, plated film layer that also can first other material of vacuum plating one deck or hybrid films or spacer film or gradient film are made bottom, as Cr layer or Ti layer or Al layer;

(4) electroless copper takes out the product of above-mentioned steps 3 and takes off the smelting tool, loads onto the hanger of subsequent treatment, and it is clean to carry out oil removing, activation processing, washing, carries out electroless copper again;

(5) chemical nickel plating after the product taking-up and cleaning with above-mentioned steps 4, carries out chemical nickel plating;

(6) chemical gilding after the product taking-up and cleaning with above-mentioned steps 5, carries out chemical gilding;

(7) product of above-mentioned steps 6 is taken out and cleans, dry, check, packing.

The invention has the beneficial effects as follows that product is anti-oxidant, anticorrosive, stable chemical performance, antenna surface is moist, is rich in metallic luster, nondiscolouring, does not come off, and highly abrasion-resistant decreases; Cost of manufacture is low, and the rate of finished products height, is fit to produce in enormous quantities.

Embodiment

The manufacture method of antenna of the present invention, its processing step is as follows:

(2) by the graphic designs of antenna and make the smelting tool, install the smelting tool at blank then;

(3) vacuum coating is packed cleaned above-mentioned blank in the vacuum chamber into, opens mechanical pump and is pumped to 500Pa, opens lobe pump then and is pumped to 3 Pa, closes bottom valve, opens high valve, is pumped to base vacuum 5.0E-3Pa with molecular pump and trap; Regulate grating 0 degree, add the 1700sccm argon gas, vacuum degree keeps 1.5Pa, opens pivoted frame, opens grid bias power supply, adjusts parameter 350V, continues glow discharge 4 minutes, carries out the ion bombardment, makes its surface active; After the glow discharge, close gas circuit, powered-down is adjusted grating 90 degree, is pumped to 5.0E-3Pa; Add the 500sccm argon gas, keep vacuum degree 0.35Pa, grating is adjusted into 20 degree, bias voltage is adjusted into 100v, opens intermediate frequency chromium target again, adjusts parameter to 18A, carry out vacuum chromium-coated film 8 minutes, and directly opened intermediate frequency copper target then, adjust parameter 18A, close intermediate frequency chromium target, argon gas is adjusted into 400sccm, keep vacuum degree 0.30Pa, vacuum copper plating film 20 minutes is closed copper target, bias voltage, gas circuit then, adjusts grating 90 degree, recover high vacuum 2min, behind the passivation 5min, workpiece is taken out in venting;

Claims

1. the manufacture method of antenna, antenna base surface or phone housing back of the body surface in injection mo(u)lding arrange some built-in aerials with layer structure, it is vacuum coating that its layer structure is respectively ground floor from the inside to the outside, the second layer is chemical plating copper layer, the 3rd layer is chemical Ni-plating layer, and the 4th layer is the chemical gilding layer; Its processing step is as follows:

(3) vacuum coating is packed cleaned above-mentioned blank in the vacuum chamber into, vacuumizes, and adds oxygen, nitrogen, carries out the ion bombardment, makes its surface active, strengthens the adhesion of rete and basis material; Then, nickel plating, and nickel alloy film perhaps plate palladium, and palladium alloy membrane, perhaps silver-plated, and silver alloy film, perhaps copper facing, and tin-copper alloy film; For strengthening the adhesion between itself and the basis material, the plated film layer of first other material of vacuum plating one deck or hybrid films or spacer film or gradient film are made bottom, and other material is Cr, Ti or Al;