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Etching and forming method for stainless steel without micro connecting points

A micro-connection and stainless steel technology, which is applied in the field of stainless steel sheet etching and forming without micro-connection points, can solve the problems of affecting product quality stability, waste of working hours and costs, stabbing FPC lines, etc., and achieve the effect of overcoming the problem of etching after nickel plating

Inactive Publication Date: 2013-04-24
SUZHOU YUNHONG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. Potential burr risk of micro-connection points: When there are slight flaws in the etching of stainless steel, or the manual breaking of micro-connection points is incorrect, there is a potential burr risk at the micro-connection points of the graphic steel sheet
After bonding and curing with FPC, the FPC circuit will be damaged by burrs, resulting in the scrapping of the final product
[0007] 2. Gap of the graphic steel sheet: When the micro-connection point of the graphic steel sheet is broken, there will be a gap, which will affect the appearance quality of the product. For some products with special requirements, the quality stability of the final product will be affected by the gap of the graphic steel sheet
[0008] 3. Waste of man-hours and costs: It takes a lot of manual work to break off the micro-connection points of the single PCS graphic steel sheet before it can be bonded and solidified with FPC. This process will cause huge waste of man-hours and cost, and increase the manufacturing cost
[0009] 4. The nickel plating process reduces the overall yield rate of the graphic steel sheet: the original technology single PCS graphic steel sheet is positioned through micro-connection points. There are abnormalities such as deformation and falling off, resulting in a low overall yield rate of graphic steel sheets

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The stainless steel micro-junction-free etching forming method of the present invention adopts the following steps sequentially: first etching of stainless steel sheet, positioning of PET carrier, secondary etching of stainless steel sheet, lamination of back glue, lamination and curing of graphic steel sheet + FPC. Before the stainless steel sheet is etched for the first time, it is electroplated with nickel.

[0021] The first etching method of the stainless steel sheet is as follows:

[0022] Use: FeCL3+HCL+NaCLO3 potion for half-cut etching, cleaning, drying, and then use PET carrier for positioning, where etching temperature: 45°C, pressure: 1kg / cm 2 ;Potion ratio: FeCLO3: 300g / L, HCL: 15g / L, NaCLO3: 100g / L.

[0023] The secondary etching method of the stainless steel sheet is as follows:

[0024] Adoption: positioning with PET carrier, using FeCL3+HCL+NaCLO3 liquid medicine for graphic etching, and etching is completed, among which etching temperature: 45°C, pre...

Embodiment 2

[0027] The stainless steel micro-junction-free etching forming method of the present invention adopts the following steps sequentially: first etching of stainless steel sheet, positioning of PET carrier, secondary etching of stainless steel sheet, lamination of back glue, lamination and curing of graphic steel sheet + FPC. Before the stainless steel sheet is etched for the first time, it is electroplated with nickel.

[0028] The first etching method of the stainless steel sheet is as follows:

[0029] Use: FeCL3+HCL+NaCLO3 potion for half-cut etching, cleaning, drying, and then use PET carrier for positioning, where etching temperature: 50°C, pressure: 3kg / cm 2 ;Potion ratio: FeCLO3: 350g / L, HCL: 30g / L, NaCLO3: 300g / L.

[0030] The secondary etching method of the stainless steel sheet is as follows:

[0031] Use: positioning with PET carrier, using FeCL3+HCL+NaCLO3 potion for graphic etching, and etching is completed, among which etching temperature: 50°C, pressure: 3kg / cm ...

Embodiment 3

[0034] The stainless steel micro-junction-free etching forming method of the present invention adopts the following steps sequentially: first etching of stainless steel sheet, positioning of PET carrier, secondary etching of stainless steel sheet, lamination of back glue, lamination and curing of graphic steel sheet + FPC. Before the stainless steel sheet is etched for the first time, it is electroplated with nickel.

[0035] The first etching method of the stainless steel sheet is as follows:

[0036] Use: FeCL3+HCL+NaCLO3 potion for half-cut etching, cleaning, drying, and then use PET carrier for positioning, where etching temperature: 55°C, pressure: 6kg / cm 2 ;Potion ratio: FeCLO3: 400g / L, HCL: 45g / L, NaCLO3: 400g / L.

[0037] The secondary etching method of the stainless steel sheet is as follows:

[0038] Adoption: positioning with PET carrier, using FeCL3+HCL+NaCLO3 potion for pattern etching, and etching is completed, among which etching temperature: 55°C, pressure: 6k...

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PUM

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Abstract

The invention discloses an etching and forming method for stainless steel without micro connecting points. The method comprises the following steps of: primarily etching a stainless steel sheet; positioning a PET (Polyethylene Terephthalate) carrier; secondarily etching the stainless steel sheet; attaching gum; and attaching and curing a patterned steel sheet and an FPC (Flexible Printed Circuit). With the adoption of a uniquely created PET carrier positioning plus secondary etching and forming technology, a necessary micro connecting point design in the prior art is overcome, and the difficulty of sequential nickel plating and etching is overcome. The micro connecting points are not needed to break manually for the patterned steel sheet which can be directly attached to and cured with the FPC so as to form a final product.

Description

technical field [0001] The invention relates to a micro-junction-free etching forming method for a stainless steel sheet, in particular to a micro-junction-free etching forming method for an electroplated nickel stainless steel sheet. Background technique [0002] Stainless steel sheet etching technology: use the principle of chemical reaction to corrode and dissolve the non-graphic area of ​​stainless steel sheet, and retain the technology of stainless steel graphic steel sheet. [0003] In the original technology, in order to prevent the graphic steel sheet from falling into the etching groove during the etching forming process, a micro-connection point design is required, as shown in Figure 1, and then the entire etched graphic steel sheet is electroplated with nickel and adhesive, and processed at the client In the process, the micro-connection points of the graphic steel sheet are manually broken, and the final product is formed by laminating and curing with the FPC. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/28C23F1/02
Inventor 马文勇
Owner SUZHOU YUNHONG PLASTIC