Surface metallization nickel plating method for nylon material based on laser sintering forming

A technology of laser sintering and surface metallization, which is applied in the field of metallization of nylon material surface, can solve the problems of high-quality surface modification and difficulty, and achieve the effects of low use cost, reduced shedding and cracking, and simple operation.

Inactive Publication Date: 2016-02-03
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of difficulty in high-quality surface modification in the surface metallization process of nylon part

Method used

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  • Surface metallization nickel plating method for nylon material based on laser sintering forming

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of specific operation steps of nickel-plating on the surface of nylon material based on laser sintering molding are as follows:

[0027] (1) Relieve internal stress

[0028] Grind the nylon parts formed based on laser sintering step by step with fine sandpaper, and then completely immerse them in an organic mixed solution at a temperature of 25±2°C, take them out for 30 seconds and dry them immediately, and check the surface condition; small and dense cracks on the surface indicate this. Stress exists at all places; the more cracks, the greater the stress; 62% of the qualified parts without stress; the parts with stress are heated in cold water, kept for 1 hour until boiling, and naturally cooled to room temperature in water to eliminate stress, and get no stress. Stress-qualified parts; the stress-free qualified parts obtained in the above two steps are soaked in water, ethanol and n-hexane in turn, fully cleaned, and dried to obtain internal stress-relieved par...

Embodiment 2

[0044] A kind of specific operation steps of nickel-plating on the surface of nylon material based on laser sintering molding are as follows:

[0045] (1) Relieve internal stress

[0046]Grind the nylon parts formed based on laser sintering step by step with fine sandpaper, and then completely immerse them in an organic mixed solution at a temperature of 25±2°C, take them out for 60 seconds and dry them immediately, and check the surface condition; small and dense cracks on the surface indicate this. There is stress at the place; the more cracks, the greater the stress; 65% of the qualified parts without stress; the parts with stress are heated in cold water, boiled for 2 hours, and naturally cooled to room temperature in water to eliminate the stress, and get no stress. Stress-qualified parts; the stress-free qualified parts obtained in the above two steps are soaked in water, ethanol and n-hexane in turn, fully cleaned, and dried to obtain internal stress-relieved parts.

...

Embodiment 3

[0061] A kind of specific operation steps of nickel-plating on the surface of nylon material based on laser sintering molding are as follows:

[0062] (1) Relieve internal stress

[0063] Grind the nylon parts formed based on laser sintering step by step with fine sandpaper, and then completely immerse them in the organic mixed solution at a temperature of 25±2°C, take them out for 90 seconds and immediately dry them, and check the surface condition; the places with small and dense cracks on the surface indicate this. Stress exists at all places; the more cracks, the greater the stress; 67% of the qualified parts without stress; the parts with stress are heated in cold water, boiled for 3 hours, and naturally cooled to room temperature in water to eliminate stress and get no stress. Stress-qualified parts; the stress-free qualified parts obtained in the above two steps are soaked in water, ethanol and n-hexane in turn, fully cleaned, and dried to obtain internal stress-relieve...

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Abstract

The invention relates to a surface metallization method for nylon based on laser sintering forming. The method includes the concrete steps that the nylon material based on laser sintering manufacturing is subjected to destressing, alkaline degreasing, acid micro-etching, activating and acid chemical nickel plating, so that a nickel material layer with the thickness of 2-3 micrometers is formed on the surface of the nylon material based on laser sintering manufacturing. The strong oxidizing property of acid is utilized for making the surface of the nylon material subjected to slight etching so as to achieve microcosmic roughing, and the effect of making the surface layer of the nylon material hydrophilic is achieved. A silver salt center with catalytic activity can be formed on the surface of the nylon material by adopting a sensitization and activation one-step method; good solid solution diffusion can be formed between an acid chemical nickel plating layer and a substrate by utilizing a surface conditioning treatment method, interface bonding force is increased, stress on the plating layer is released, and the obtained plating layer is good in appearance quality and solderability.

Description

technical field [0001] The invention belongs to the technical field of surface treatment of nylon-based materials, and in particular relates to a method for metallizing the surface of a nylon material based on laser sintering. Background technique [0002] Nylon is a thermoplastic powder material with a wide operating temperature range. Excellent mechanical properties, tensile strength, fracture toughness, repeated impact toughness, wear resistance, etc. are very prominent, very suitable for selective laser sintering, which selectively sinters nylon-based and other non-metallic powder materials through laser beams Perform sintering to rapidly prepare 3D solid models and products. [0003] Due to the different requirements for material properties in practical applications, it is necessary to metallize the surface of nylon-based materials to improve its surface properties so that it can have both the unique functions of plastics and metals. After metallization of nylon mater...

Claims

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Application Information

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IPC IPC(8): C23C18/20C23C18/32
Inventor 刘东光李敏胡江华桂中祥赵东栾兆菊张志勇
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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