Aluminum alloy craft decoration gold plating process and application

[China Aluminum Network] inside the surface:

(I. Overview

Crafts made of aluminum alloy materials generally require the appearance of bronze color or gold. Most of the low-grade products use dyeing, such as stained bronze and golden yellow. Some of the more upscale crafts use antique copper plating or imitation gold plating. Upscale crafts must be plated with hard gold. Since the aluminum alloy material has a low potential and a strong oleophilic ability, a natural passivation film can be formed instantaneously, and since the potential is negative in the plating solution, a substitution reaction easily occurs, so that the plating layer has a very poor binding force during direct plating. The aluminum alloy must be pretreated before plating, otherwise a good coating cannot be obtained. At present, there are many kinds of pretreatment methods. The most commonly used methods are immersion plating replacement methods, such as dipping zinc, tin, iron, nickel and other metals and their alloys. Many foreign companies have patents and goods used in this area. Domestic research institutions also research and develop such products and apply them in production. The application of immersion plating pretreatment technology developed by Yang Middle East, Li Changye et al., and aluminum gold-silicon alloy casting handicraft decoration gold plating process in production are introduced below. The products used in the production are sunbirds made of pressed aluminum-silicon alloys, which have been used for many years. It has been reported that the gold plating layer is still bright and its bonding strength and corrosion resistance are good.

(II) Production process

Aluminum-silicon alloy die castings (32 art sunbirds) â†’ Mechanical modification â†’ Trichloroethylene degreasing â†’ Air drying â†’ Liquor degreasing â†’ Washing â†’ Alkali etching â†’ Washing â†’ Acidic washing â†’ Washing â†’ Activation â†’ Washing â†’ Alkali Washing â†’ Washing â†’ Immersion Plating â†’ Washing â†’ Film Stripping â†’ Washing â†’ Alkaline Washing â†’ Washing â†’ Secondary Immersion Plating â†’ Washing â†’ Neutral Pre-Plating Nickel â†’ Washing â†’ Pure Washing â†’ Bright Copper Plating â†’ Washing â†’ Pure Washing â†’ Bright nickel plating â†’ Washing â†’ Pure water washing â†’ Hard gold plating â†’ Washing â†’ Alkaline water washing â†’ Washing â†’ Pure water washing â†’ Drying â†’ Packaging.

Pm2.5 Mesh Screen

The Pm2.5 Mesh Screen is a revolutionary technology designed to filter out PM2.5 particles from the air, improving air quality and protecting human health. This innovative solution consists of a fine mesh that effectively captures and traps PM2.5 particles while allowing clean air to pass through. With its versatile applications in residential, commercial, industrial, and public settings, the Pm2.5 Mesh Screen offers a cost-effective and energy-efficient solution to combat air pollution. By understanding its significance, we can appreciate its potential to create a cleaner and healthier environment for all.

PM2.5,Mesh screen,Air pollution

Jinwu Glass Fiber Co., Ltd , https://www.jinwuwindows.com