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Metal surface treatment method and method for preparing alloy mold base

A technology of alloy and mold base, applied in the field of electroplating gold, which can solve the problems of complex production process, numerous processes, and long process time

Active Publication Date: 2019-01-25
SHENZHEN UNITED BLUEOCEAN TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a metal surface treatment method and a method for preparing alloy mold blanks in order to overcome the problems of high skill requirements for operators, complex manufacturing process, numerous procedures, long process time and high scrap rate in the prior art. method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Processing and forming: the tin-bismuth alloy of molten state is injected in the silicone rubber mold with bracelet structure (based on the total weight of the tin-bismuth alloy, the content of tin is 42% by weight, and the content of bismuth is 58% by weight. % by weight), then cooled to form the rough product of the alloy mold base of the bracelet structure.

[0025] (2) Surface treatment: place the rough finished product of the alloy die on the workbench of a laser machine (near infrared light, Changchun New Industry Optoelectronics Technology Co., Ltd., a lamp pump YAG laser welding machine of 500W, the same below), set the laser wavelength as 1064nm, power 200W, frequency 5Hz, focus spot diameter 0.2mm, start the laser machine for polishing, the polishing is completed, and the alloy mold base A is obtained, and there are no dents, scratches, grades, bumps, etc., surface treatment The total time required for the process to complete is 5 minutes, and the measured...

Embodiment 2

[0027] (1) Processing and forming: draw the 3D drawing of the steel mold used for the bracelet mold embryo, and then make the steel mold according to the drawn 3D drawing, and the alloy raw material (lead-bismuth alloy, based on the total weight of the lead-bismuth alloy, the content of lead is 45% by weight, and the content of bismuth is 55% by weight) is filled into the above-mentioned obtained steel mold, and in a die-casting machine (Guangdong Yizumi Precision Machinery Co., Ltd., HM160H, the die-casting temperature is 160 ℃, and the clamping force is 150kg / cm 2 ) in die-casting the alloy raw material to obtain the rough product of the alloy mold base.

[0028] (2) Surface treatment: place the rough alloy mold blank on the workbench of the laser machine, set the laser wavelength to 1064nm, the power to 480W, the pulse frequency to 20Hz, and the diameter of the focused spot to be 1.9mm, start the laser machine for polishing, polishing Completed, the alloy mold base B was ...

Embodiment 3

[0030] (1) Processing and molding: draw the 3D figure of the bracelet mold base, select the alloy raw material block (tin-bismuth alloy, based on the total weight of the tin-bismuth alloy, the content of tin is 58% by weight, and the content of bismuth is 42% by weight) , according to the drawn 3D map, cutting on a CNC machine tool (Shenyang Yiji Machine Tool Company, VMC800) to obtain a rough alloy mold blank.

[0031] (2) Surface treatment: place the rough alloy mold blank on the workbench of the laser machine, set the laser wavelength to 1064nm, the power to 350W, the pulse frequency to 12Hz, and the diameter of the focused spot to be 1mm, start the laser machine for polishing, and the polishing is completed , the alloy mold base C was obtained, and no dents, scratches, grades, bumps, etc. were observed. The total time required for the surface treatment process to complete was 4 minutes, and the average surface roughness was measured to be 0.33 μm.

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Abstract

The invention relates to the field of electroplating gold, and discloses a metal surface treatment method and a method for preparing alloy mold base. The invention discloses a method for treating metal surface, which comprises: performing laser polishing on a metal surface, wherein the metal is an alloy material and / or gold; on the other hand, the invention discloses a method for preparing alloy mold base, which comprises: processing an alloy raw material into an alloy mold base, and carrying out surface treatment on the formed alloy mold base according to the above method. Through the technical scheme, the surface treatment of the surface of the mold base and the gold finished product can be realized quickly, simply and efficiently, and the lower roughness can be achieved.

Description

technical field [0001] The invention relates to the field of electroplating gold, in particular to a metal surface treatment method and a method for preparing an alloy mold base. Background technique [0002] With the improvement of people's living standards, gold products are more and more favored by consumers. At present, more and more gold products are produced by electroplating, and the surface of the alloy mold blank used for electroplating is very bright. The degree determines the quality of the electroplated gold product. In addition, the brightness of the surface of the gold product also determines the quality of the gold product. [0003] The surface treatment of the existing alloy mold blanks and gold products is very complicated, requiring a mature operator to use a series of tools such as files, scissors, scissors, pointed scissors, bows, brushes, sandpaper, dental needles, etc. And a series of complex operating procedures to polish the alloy mold base or gold f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P23/04B23K26/40
CPCB23K26/40
Inventor 唐双喜王树涵何来生
Owner SHENZHEN UNITED BLUEOCEAN TECH DEV
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