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Manufacturing method of tourist souvenir ornament

A manufacturing method and technology of souvenirs, applied in the field of manufacturing tourist souvenirs, to achieve the effect of cheap price, simple metal coating method, and easy control

Inactive Publication Date: 2016-06-01
张颖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the prior art, there is almost no report on the decorative chrome plating of tourist souvenirs, and the present invention aims to overcome the above-mentioned defects of the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for making a tourist souvenir ornament, said method comprising the steps of:

[0034] 1) Use computer to design the shape of tourist souvenirs;

[0035] 2) making a die-casting metal mold according to the molding designed in step 1);

[0036] 3) select 2# zinc alloy for use, and smelt; simultaneously the mold of step 2) is painted with paint and preheated;

[0037] 4) Die-casting with horizontal die-casting machine;

[0038] 5) Die cleaning;

[0039] 6) Electroplating;

[0040] Wherein, described electroplating comprises the steps:

[0041] (1) Pre-plating treatment: including surface degreasing and degreasing, pickling and rust removal, and activation treatment process to improve the bonding force of the coating;

[0042] (2) Cyanide-free copper pre-plating: the composition of the plating solution is copper pyrophosphate 80g / L, sodium pyrophosphate 150g / L, trisodium citrate 200g / L, potassium sodium tartrate 40g / L, HEDP15g / L, ethylenediamine 180g / L; ammoniu...

Embodiment 2

[0049] A method for making a tourist souvenir ornament, said method comprising the steps of:

[0050] 1) Use computer to design the shape of tourist souvenirs;

[0051] 2) making a die-casting metal mold according to the molding designed in step 1);

[0052] 3) select 2# zinc alloy for use, and smelt; simultaneously the mold of step 2) is painted with paint and preheated;

[0053] 4) Die-casting with horizontal die-casting machine;

[0054] 5) Die cleaning;

[0055] 6) Electroplating;

[0056] Wherein, described electroplating comprises the steps:

[0057] (1) Pre-plating treatment: including surface degreasing and degreasing, pickling and rust removal, and activation treatment process to improve the bonding force of the coating;

[0058] (2) Cyanide-free copper pre-plating: the composition of the plating solution is copper pyrophosphate 90g / L, sodium pyrophosphate 140g / L, trisodium citrate 220g / L, potassium sodium tartrate 36g / L, HEDP17g / L, ethylenediamine 160g / L; ammon...

Embodiment 3

[0065] A method for making a tourist souvenir ornament, said method comprising the steps of:

[0066] 1) Use computer to design the shape of tourist souvenirs;

[0067] 2) making a die-casting metal mold according to the molding designed in step 1);

[0068] 3) select 2# zinc alloy for use, and smelt; simultaneously the mold of step 2) is painted with paint and preheated;

[0069] 4) Die-casting with horizontal die-casting machine;

[0070] 5) Die cleaning;

[0071] 6) electroplating;

[0072] Wherein, described electroplating comprises the steps:

[0073] (1) Pre-plating treatment: including surface degreasing and degreasing, pickling and rust removal, and activation treatment process to improve the bonding force of the coating;

[0074] (2) Cyanide-free copper pre-plating: the bath composition is copper pyrophosphate 85g / L, pyrophosphoric acid 145g / L, trisodium citrate 210g / L, potassium sodium tartrate 38g / L, HEDP16g / L, ethylenediamine 170g / L; ammonium bifluoride 6g / L;...

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Abstract

The invention discloses a manufacturing method of a tourist souvenir ornament. The manufacturing method comprises the following steps: (1) designing modeling of the tourist souvenir ornament by using a computer; (2) manufacturing a die casting metal mold according to the molding designed in the step (1); (3) selecting 2# zinc alloy and smelting; and meanwhile brushing coating on the mold obtained from the step (2) and pre-heating; (4) carrying out die casting molding by using a horizontal die casting machine; (5) carrying out demolding cleaning; and (6) electroplating, wherein electroplating comprises (1) treatment before plating, (2) cyanide-free copper pre-plating, (3) acid copper plating, (4) semi-bright nickel electroplating, (5), high sulfur nickel electroplating, (6) bright nickel electroplating and (7) chromium electroplating. A plating film of a plating layer obtained by the manufacturing method is uniform in thickness, high in corrosion resistance, high in hardness and bright and neat in surface, and the plating layer does not peel, fade or discolor.

Description

technical field [0001] The invention relates to the field of handicraft production, in particular to a method for producing tourist souvenir ornaments. Background technique [0002] Zinc alloy has been widely used in the production of tourist souvenirs because of its cheap price, low melting point, and especially its good die-casting performance. Such as scenic modeling, commemorative ornaments, etc. [0003] However, the appearance of zinc alloy die castings is gray and white, and there are various defects on the surface, such as: slag inclusions, shrinkage cavities, etc. Therefore, without surface treatment, its usability and decoration are very poor. A common surface treatment method is electroplating. According to the different decorative and functional requirements, there are certain differences in the electroplating process. For example, there are gold-plated, silver-plated, chrome-plated, and gun-plated colors on the surface. However, regardless of the coating on ...

Claims

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Application Information

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IPC IPC(8): C25D5/14C25D3/38C25D3/12C25D3/04
CPCC25D5/14C25D3/04C25D3/12C25D3/38
Inventor 张颖
Owner 张颖
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