Introduction Metal Wire Shelf of Chrome Plated and Galvanized Finish on the Surface
2021-09-07
Introduction metal wire shelf of chrome plated and galvanized finish on the surface
In the surface finsih process of metal shelf products, we often use chrome-plated process. So, let's take a closer look at what is the chrome-plated process.
Chrome-plated refers to the process of plating a thin layer of other metals or alloys on the surface of certain metals using the principle of electrolysis. In essence, it is the process of using electrolysis to attach a layer of metal film to the surface of a metal or other material. Prevent metal oxidation (such as rust), improve wear resistance, electrical conductivity, reflectivity, corrosion resistance (copper sulfate, etc.) and enhance aesthetics.
Chrome-plating is further divided into specific processes such as copper plating, gold plating, silver plating, chrome plating, nickel plating and zinc plating. In the field of industrial design, chromium plating and zinc plating are the most widely used.
The following is a detailed introduction to the characteristics of these two metal surface finish processes:
1. Chrome plating
Two, galvanized
The following is the most basic difference between the chrome plating and galvanizing process on the surface of the metal shelf
1. Chrome plating is mainly to improve surface hardness, beauty and rust prevention. The chromium plating layer has good chemical stability and has no effect in alkali, sulfide, nitric acid and most organic acids, but it can be dissolved in hydrohalic acid (such as hydrochloric acid) and hot sulfuric acid. Because chromium does not change color, it can maintain its reflection ability for a long time when used, which is better than silver and nickel. The process is generally electroplating.
2. Galvanizing is mainly for aesthetics and rust prevention. Zinc is a lively metal, easy to oxidize, and can react with acid, so it has poor corrosion resistance and low cost. However, the surface of galvanized racks is generally purely galvanized, and the surface is usually sprayed with powder, so that it can be used for a long time. It is not easy to rust in humid and low temperature environments, such as cold storage, commercial kitchens, etc. Please see the picture of galvanized and powder-coated racks below:
In addition, the two can be easily distinguished by color:
Chrome-plated bright white, galvanized silver-white (in fact, there are color zinc, gray zinc, matt chrome, bright chrome, white nickel, black nickel, etc.) these two are the most common.
Electroplating production is mainly based on heavy metal pollution in sewage and sewage. The country has strictly controlled the expansion of the electroplating industry and has reduced it year by year. my country's electroplating processing is mainly zinc plating, copper plating, nickel plating, and chromium plating, of which zinc plating accounts for 50%, and copper, chromium, and nickel plating account for 30%. If the purpose is to prevent rust, zinc plating can be used; if the focus is to prevent wear, chrome plating is a better choice.
In the surface finsih process of metal shelf products, we often use chrome-plated process. So, let's take a closer look at what is the chrome-plated process.
Chrome-plated refers to the process of plating a thin layer of other metals or alloys on the surface of certain metals using the principle of electrolysis. In essence, it is the process of using electrolysis to attach a layer of metal film to the surface of a metal or other material. Prevent metal oxidation (such as rust), improve wear resistance, electrical conductivity, reflectivity, corrosion resistance (copper sulfate, etc.) and enhance aesthetics.
Chrome-plating is further divided into specific processes such as copper plating, gold plating, silver plating, chrome plating, nickel plating and zinc plating. In the field of industrial design, chromium plating and zinc plating are the most widely used.
The following is a detailed introduction to the characteristics of these two metal surface finish processes:
1. Chrome plating
- Definition: Chromium is a kind of bright white metal with a bluish tint. The method of plating a layer of chromium on metal or some non-metals by electrolysis or chemical methods is called chromium plating.
- Features: There are two types of chromium plating. The first one is for decorative purposes. It has a bright appearance and good abrasion resistance. The anti-rust ability is not as good as galvanized and is worse than oxidation. The second is to increase the hardness and wear resistance of metal parts. , This is the functionality of the part.
- Application: Bright decorative parts on furniture, home appliances, electronics and other products, or metal wire shelf, the surface color is similar to the stainless steel color, which looks beautiful and high-end, as shown in the following figure:
Two, galvanized
- Definition: Zinc plating refers to a surface treatment technology that coats the surface of metal, alloy or other materials with a layer of zinc for aesthetics and rust prevention.
- Features: low cost, general anti-corrosion, silver-white color.
- Application: screws, circuit breakers, industrial supplies, etc.
The following is the most basic difference between the chrome plating and galvanizing process on the surface of the metal shelf
1. Chrome plating is mainly to improve surface hardness, beauty and rust prevention. The chromium plating layer has good chemical stability and has no effect in alkali, sulfide, nitric acid and most organic acids, but it can be dissolved in hydrohalic acid (such as hydrochloric acid) and hot sulfuric acid. Because chromium does not change color, it can maintain its reflection ability for a long time when used, which is better than silver and nickel. The process is generally electroplating.
2. Galvanizing is mainly for aesthetics and rust prevention. Zinc is a lively metal, easy to oxidize, and can react with acid, so it has poor corrosion resistance and low cost. However, the surface of galvanized racks is generally purely galvanized, and the surface is usually sprayed with powder, so that it can be used for a long time. It is not easy to rust in humid and low temperature environments, such as cold storage, commercial kitchens, etc. Please see the picture of galvanized and powder-coated racks below:
In addition, the two can be easily distinguished by color:
Chrome-plated bright white, galvanized silver-white (in fact, there are color zinc, gray zinc, matt chrome, bright chrome, white nickel, black nickel, etc.) these two are the most common.
Electroplating production is mainly based on heavy metal pollution in sewage and sewage. The country has strictly controlled the expansion of the electroplating industry and has reduced it year by year. my country's electroplating processing is mainly zinc plating, copper plating, nickel plating, and chromium plating, of which zinc plating accounts for 50%, and copper, chromium, and nickel plating account for 30%. If the purpose is to prevent rust, zinc plating can be used; if the focus is to prevent wear, chrome plating is a better choice.
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