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Non-electrolytic method for metallizing a surface pretreated substrate on-line by spraying and device for implementing the method

A technology of metal plating and electroless plating, which is applied in the field of electroless metal plating and the manufacture of conductive rails, and can solve problems such as incompatibility

Active Publication Date: 2017-04-26
JET METAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technique does not provide any satisfactory results in terms of the adhesion of metal films on the substrate surface, because regardless of the substrate (plastic, metal, wood, polymer...), the method are implemented in the same manner, so this method is not adapted to the characteristics of various substrates that require metallization

Method used

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  • Non-electrolytic method for metallizing a surface pretreated substrate on-line by spraying and device for implementing the method
  • Non-electrolytic method for metallizing a surface pretreated substrate on-line by spraying and device for implementing the method
  • Non-electrolytic method for metallizing a surface pretreated substrate on-line by spraying and device for implementing the method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0207] Example 1: Silver plating of rigid substrate of insulating glass

[0208] Coating by DEGUSSA on cylindrical glass bottles with a height of 10 cm and an outer diameter of 5 cm by spraying with an HVLP spray gun Sold under the trade name GLYMO 0.1g / l silane-based solution. Then still spray AKZO NOBEL on the rotating bottle with HVLP spray gun Epoxy varnishes sold by companies. Heat for 10 minutes in a heated enclosure at a temperature of 280°C.

[0209] The bottles are then placed in a flame treatment chamber with three natural gas burners. The bottles rotate at 120 rpm. The flame temperature was adjusted to 1400°C, and the flame treatment time was 20 seconds.

[0210] The bottles thus treated are placed in a metallization unit where the bottles go through the following steps in succession:

[0211] § Sensitization of the surface by spraying a stannous chloride based solution with a HVLP spray gun for 5 seconds,

[0212] § Flush the sensitizing solution by sp...

Embodiment 2

[0219] Example 2: Silver plating of rigid substrate of insulating glass

[0220] POLIR-MALIN is spray-coated by HVLP spray gun on a cylindrical glass bottle with a height of 10 cm and an outer diameter of 5 cm. Sold under the trade name GLASSPOLISHING A solution based on cerium oxide at a concentration of 250 g / l, followed by polishing in a polishing chamber consisting of a rotating pad and rinsing by spraying distilled water with an HVLP spray gun.

[0221] The bottles thus treated are placed in a metallization unit in which the following operations are carried out sequentially:

[0222] § Sensitization of the surface by spraying a stannous chloride based solution with an HVLP spray gun for 5 seconds,

[0223] § Flush the sensitizing solution by spraying water with the HVLP spray gun for 5 seconds,

[0224] § Simultaneously spray silver nitrate aqueous solution with a concentration of 2g / l and sodium gluconate aqueous solution with a concentration of 15g / l for 25 secon...

Embodiment 3

[0227] Example 3: Nickel / copper plating of flexible substrates made of polyester fabric

[0228] Apply LA CELLIOSE on a fabric made of polyester with a length of 10 cm, a width of 10 cm and a thickness of 2 mm by spraying with an HVLP spray gun Polyurethane varnishes sold by the company. It was then heated for 40 minutes in a thermally enclosed space at a temperature of 40°C.

[0229] The fabric is then placed in a flame treatment chamber with three natural gas burners. The painted side of the fabric was flame treated at a flame temperature of 1400° C. for 20 seconds. The fabric thus treated is placed in a metallization unit in which the flame-treated lacquered side undergoes the following operations in sequence:

[0230] §Wetting treatment by spraying water with HVLP spray gun for 5 seconds

[0231] §Use the HVLP spray gun to spray nickel sulfate aqueous solution with a concentration of 5g / l and sodium hypophosphite solution with a concentration of 20g / l for 30 seconds...

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Abstract

The present invention relates to a method for the electroless metallization of substrate surfaces by spraying one or more redox solutions onto the substrate surface, the method is industrializable, automatable, clean, multi-substrate and bonded Optimal performance and decorative appearance. To this end, the method comprises the steps of: a. performing a physical or chemical treatment to reduce the surface tension of the substrate prior to metallization, b. The surface of the substrate treated in step a. is electrolessly metallized, and c. forming a topcoat on the metallized surface. The invention also relates to a small device for carrying out the method and the products obtained therefrom, in particular: hollow glass bottles, especially for cosmetics, automotive parts, household appliance parts or aerospace parts, and electronic parts such as conductor rails, radio frequency Identify antennas or coatings used for electromagnetic shielding.

Description

technical field [0001] The present invention relates to the technical field of plating substrate surfaces with metal films. [0002] The present invention relates to a method for performing electroless metal plating on decorative substrates, for example, the method is suitable for insulating glass, flasks, cosmetic parts, aviation parts, automobile parts and home appliance parts. The invention also relates to the electroless metallization of substrates for electronic products, in particular for the manufacture of conductive tracks. Background technique [0003] Glass silvering to make mirrors is one of the oldest applications of metallization by chemical means. The method involves depositing the metal by gravity by immersion in a bath of a metal solution containing a metal salt, a reducing agent, and a complex-forming additive. The surface must be coated with stannous chloride (SnCl 2 ) is pre-sensitized with an acidic solution. This sensitization step can be achieved by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/31
CPCC23C18/1653C23C18/18C23C18/1803C23C18/2006C23C18/31C23C18/1619C03C17/003C03C17/10C23C18/1601Y10T428/1317Y10T428/31678C23C18/54
Inventor 塞缪尔·斯特雷姆斯多厄弗尔
Owner JET METAL TECH
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