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Manufacturing process of shell

A manufacturing process and shell technology, applied in the field of shell manufacturing process, can solve problems such as environmental pollution and waste of resources

Inactive Publication Date: 2015-05-20
温兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface treatment of the current plastic shell is mainly electroplating or spraying and sintering into a ceramic layer. It is difficult to achieve a variety of products that are gorgeous and full in color, have a strong sense of hierarchy, are beautiful, heat-resistant, wear-resistant, corrosion-resistant, and high-hardness. ; and it needs to be sintered into a ceramic layer at high temperature, which not only pollutes the environment but also wastes resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] The invention relates to a manufacturing process of a mobile phone casing, which is formed by high-temperature-resistant electroplatable grade plastic, and then respectively electroplated and sprayed with ceramic glaze.

[0070] (1) The plastic molding process specifically includes the following steps:

[0071] (1.1) Heat treatment before molding: use plastics such as LCP, PSU or PES, the temperature is 160°C, and the time is 4h;

[0072] (1.2) Plastic molding: Extrusion plastic molding method, processing temperature is 360°C; Sumitomo Corporation horizontal injection molding machine tonnage 86T, Resin drying temperature 150°C, drying time 4h, molding cycle 40s, front mold temperature 130° C, the mold temperature of the rear mold is 110°C, and the cooling time is 20s.

[0073] (1.3) Annealing treatment: Glycerin bath annealing method, the temperature is 160°C, and the time is 1h.

[0074] (2) The electroplating process specifically includes the following steps:

[00...

Embodiment 2

[0093] The invention relates to a manufacturing process of a notebook casing, which is formed by high-temperature-resistant electroplatable grade plastic, and then electroplated and sprayed with oxidized ceramic glaze.

[0094] (1) The plastic molding process specifically includes the following steps:

[0095] (1.1) Heat treatment before molding: PSU plastic is used, the temperature is 160°C, and the time is 4h;

[0096] (1.2) Plastic molding: injection molding method, processing temperature is 380°C; Sumitomo Corporation horizontal injection molding machine tonnage is 86T, Resin drying temperature is 145°C, drying time is 6h, molding cycle is 45s, front mold temperature is 135°C, The mold temperature of the rear mold is 115°C, and the cooling time is 20s.

[0097] (1.3) Annealing treatment: Glycerin bath annealing method, the temperature is 160°C, and the time is 2h.

[0098] (2) The electroplating process specifically includes the following steps:

[0099] (2.1) Degreasin...

Embodiment 3

[0117] A manufacturing process of a rechargeable battery shell is formed by high-temperature-resistant electroplatable grade plastic, and then electroplated and sprayed with an organic UV coating.

[0118] (1) The plastic molding process specifically includes the following steps:

[0119] (1.1) Heat treatment before molding: LCP plastic is used, the temperature is 160°C, and the time is 4h;

[0120] (1.2) Plastic molding: blow molding method, processing temperature is 400°C; Sumitomo Corporation horizontal injection molding machine tonnage is 86T, Resin drying temperature is 155°C, drying time is 2h, molding cycle is 35s, front mold temperature is 125°C , the mold temperature of the rear mold is 105°C, and the cooling time is 20s.

[0121] (1.3) Annealing treatment: air bath annealing method, the temperature is 160°C, and the time is 4h.

[0122] (2) The electroplating process specifically includes the following steps:

[0123] (2.1) Degreasing: The degreasing liquid is: so...

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Abstract

The invention discloses a manufacturing process of a shell. The manufacturing process of a shell comprises the following steps: (1) providing a plastic and carrying out injection moulding to form a plastic workpiece of the shell; (2) forming a conductive layer on the surface of the shaped plastic workpiece; (3) soaking the plastic workpiece in a copper plating solution to perform electroplating to form a copper-plated layer on the conductive layer; (4) soaking the plastic workpiece in a nickel plating solution to perform electroplating to form a nickel-plated layer on the copper-plated layer; (5) soaking the plastic workpiece in a metal or alloy plating solution to perform electroplating to form a metal-plated layer or alloy-plated layer on the nickel-plated layer; and (6) spraying inorganic coating or organic coating onto the electroplated plastic workpiece to form an inorganic coating layer or an organic coating layer. The manufacturing process increases shell performances such as rigidity and strength, decreases cost, improves production efficiency and realizes environment protection. The manufacturing process can be combined with different electroplating surfaces and inorganic or organic coating layers to present various products with gorgeous and full colors, strong sense of hierarchies, beautiful and decent appearances, heat-resistant and abrasion-resistant properties, anti-corrosion properties and high rigidities.

Description

technical field [0001] The invention relates to a manufacturing process of a casing. Background technique [0002] Existing hardware shells, especially hardware mobile phone shells, have been using traditional processes such as metal aluminum alloy sandblasting + oxidation + high-gloss edge + in-mold injection molding or stainless steel frame + stamping parts + in-mold injection molding or powder metallurgy. High, complicated process, simple color tone, surface hardness and wear resistance cannot meet the diverse needs of people's lives. Compared with metal casings, plastic casings have received more and more attention due to their unique advantages. The more common ones are: waterproof boxes, power supply casings, charger casings, mobile phone casings, and so on. The plastic shell has the following advantages: lightweight, low cost; chemically stable, no rust; good impact resistance; good insulation, low thermal conductivity; good transparency and wear resistance; formabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29C47/00B29C43/24B29C49/00B29C51/00B29C71/02C23C28/02C23C18/20C23C18/36C25D5/14
Inventor 温兵
Owner 温兵
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