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There are many types of surface treatment of CNC machined parts that can be used for prototype manufacturing design and production. Not all surface treatments are suitable. Many surface treatments are only used to improve aesthetics and ignore the functions of CNC machined parts, but there are also many people who consider the beauty and practicality of CNC machined parts. In this article, we will focus on the electroplating of CNC machining parts. In the surface treatment design and production of CNC machined parts, in addition to improving the aesthetics, it is more important to improve the performance of CNC machined parts. This article describes the knowledge of electroplating of key CNC machining parts.
What electroplating?
Electroplating is the process of plating a thin layer of other metals or alloys on the surface of some CNC machined parts using the principle of electrolysis. It is the process of using electrolysis to attach a layer of metal film to the surface of the CNC machined parts to prevent oxidation of the CNC machined parts ( Such as rust), improve wear resistance, electrical conductivity, reflectivity, corrosion resistance (copper sulfate, etc.) and enhance aesthetics. The outer layer of many coins is also electroplated.
Principles of Electroplating of CNC Machining Parts
In the salt solution containing the CNC machined parts to be plated, the base metal to be plated is used as the cathode. Through electrolysis, the cations of the metal to be plated in the plating solution are deposited on the surface of the CNC machined parts to form a coating.
Elements of electroplating of CNC machined parts
1. Cathode: The object to be plated refers to various connector terminals.
2. Anode: If it is a soluble anode, it is the metal to be plated. . In the case of insoluble anodes, most of them are precious metals (platinum, iridium oxide).
3. Electroplating potion: electroplating potion containing metal ions to be plated.
4. Electroplating tank: a tank that can bear and store electroplating solution, generally considering factors such as strength, corrosion resistance, and temperature resistance.
5. Rectifier: A device that provides DC power. Polishing &#; polishing &#; hanging &#; degreasing and degreasing &#; washing &#; electrolytic polishing or chemical polishing &#; pickling activation &#; pre-dipping &#; electroplating &#; washing &#; post-treatment &#; washing &#; drying &#; hanging &#; inspecting packaging.
What are the electroplating of CNC machining parts?
Gilded
The gold plating layer has a golden appearance, has good chemical stability, discoloration resistance, electrical conductivity, corrosion resistance and oxidation resistance. At the same time, it has good solderability, low contact resistance, and excellent hot-press bonding performance, which makes electroplating gold The coating can be used as a decorative coating as well as a functional and protective coating. An easy way to impart these important properties to silver and copper metals is gold plating. It has a wide range of applications in improving the conductivity of CNC machined parts (such as electrical connectors).
Silver
Similar to gold plating, silver plating also improves the beauty of related materials. When it comes to silver plating, conductivity also plays a role. Many manufacturers of CNC machined parts choose silver plating because it is cost-effective and cheaper than gold. It can also more fully electroplate copper and CNC machined parts. It is often used in electrical appliances, sanitary ware, furniture and household products, handicrafts, hardware equipment, lighting, fire-fighting supplies, medical equipment, aluminum, steel, fitness equipment, transportation facilities, etc.
Copper plating
When your application requires cost-effectiveness and high conductivity, copper plating is the best choice. This procedure is usually used as the main coating pretreatment for subsequent electroplating surfaces. Copper electroplating technology is the core technology for manufacturing electronic interconnection devices such as printed circuit boards and package carrier boards. Due to its low material cost, the electroplating efficiency is high.
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Galvanized
Galvanizing is to coat a layer of zinc on the surface of CNC machined parts or other materials for aesthetics and rust prevention. The zinc layer on the surface is an electrochemical protective layer that can prevent the CNC machined parts from decay. Widely used Machinery manufacturing, electronics, precision instruments, chemicals, transportation, aerospace, etc.
Chrome
This electroplating process usually involves the use of chromic acid and a trivalent chromium bath to create a coating on the CNC machined part. The chromium plating layer has good chemical stability. It has no effect in alkali, sulfide, nitric acid and most organic acids, but it can be dissolved in hydrochloric acid (such as hydrochloric acid) and hot sulfuric acid. In the visible light range, the reflectivity of chromium is about 65%, which is between silver (88%) and nickel (55%). Because chromium does not change color, it can maintain its reflectivity for a long time and is better than silver and nickel. . Mainly in many fields such as metallurgy, automobile, civil engineering, electric power, chemical industry, marine engineering, household appliances, railways, highways, bridges, tunnels, military industry, etc.
Nickel plated
The method of depositing a layer of nickel on the surface of CNC machined parts by electrochemical action. It can be used as a surface coating, but it is mainly used for chrome plating to prevent corrosion, increase wear resistance, gloss and beauty. This electroplating technology is most suitable for aluminum and copper CNC machining parts. It is also suitable for other metal materials, and also used for bottom plating of chromium. Mainly used in petroleum, chemical, electronics, instrumentation, lighting, communications, aerospace and other fields.
Advantages and disadvantages of electroplating of CNC machined parts
Electroplating is an effective and common surface treatment process for CNC machined parts. When using metal electroplating, we should also understand its advantages and disadvantages. Below we tell you its advantages and disadvantages.
Advantages: It can be plated with a variety of materials, it has a wide range of specific and architectural finishes, this is a cost-effective finishing technology that provides anti-wear and anti-corrosion protection, provides high hardness and strength, and increases the decorative feel of the material.
Disadvantages: It is easy to break in certain wear environments, it may be very long, and if it is not handled well, CNC machining defects will occur.
Summarize
Electroplating is a common surface treatment method, which can increase the beauty of CNC machined parts and strengthen product performance. When choosing a metal coating, attention should be paid to its practicality, whether it is to improve chemical properties or physical properties. So you need a professional CNC machining parts company to cooperate, if you need CNC machining parts, please contact us, we will create a high-quality CNC machining parts experience for you.
When it comes to packaging, the quality of materials can make all the difference. Steel strapping is a crucial component in ensuring the safety and security of your packaged goods during transit. However, not all steel strapping is created equal. To guarantee the safety of your products and peace of mind for your business, it&#;s essential to know how to identify the quality of steel strip for packaging. In this article, we&#;ll provide you with valuable insights and tips to help you make informed choices.
The first and most fundamental aspect of steel strapping quality is the material itself. Steel strapping is typically made from two primary materials: regular steel and high-tensile steel.
Regular Steel: This type of strapping is more affordable but is suitable for lighter loads and shorter transit distances. It is characterized by a lower tensile strength and is more prone to elongation under pressure.
High-Tensile Steel: High-tensile steel strapping, on the other hand, is designed for heavy-duty applications. It offers superior tensile strength and elongation resistance, making it ideal for long-distance shipping and securing heavy loads.
To identify the material, check the strapping&#;s specifications provided by the manufacturer. Look for terms like &#;regular steel&#; or &#;high-tensile steel&#; in the product description.
The width and thickness of steel strapping also play a critical role in its quality. Thicker and wider strapping generally offers better strength and load-bearing capabilities. Measure the strapping&#;s width and thickness using a caliper or ruler. Ensure that it meets the requirements of your specific packaging needs.
Steel strapping often comes with various finishes and coatings designed to enhance its performance and resistance to corrosion. Common finishes include:
Painted: Painted steel strapping offers protection against rust and corrosion. It is typically color-coded for easy identification of the strapping&#;s tensile strength.
Galvanized: Galvanized steel strapping is coated with a layer of zinc, providing excellent corrosion resistance, especially in humid or corrosive environments.
Waxed: Waxed steel strapping is lubricated with wax, reducing friction during tensioning and ensuring a secure seal.
Choose the finish or coating that best suits your packaging needs and environmental conditions.
The edge finish of steel strapping is often an overlooked factor in assessing quality. The edges can be either rounded or deburred. Rounded edges are safer to handle and less likely to damage your products or injure workers during tensioning and application.
Tensile strength is a crucial indicator of a steel strapping&#;s quality. It measures the maximum amount of stress a strapping can withstand without breaking. Tensile strength is usually indicated in pounds per square inch (PSI) or megapascals (MPa). Ensure that the strapping&#;s tensile strength matches or exceeds the requirements of your application.
Reputable manufacturers subject their steel strapping to rigorous testing to ensure quality and compliance with industry standards. Look for strapping that has been tested and certified by recognized organizations. These certifications are a reliable indicator of quality and reliability.
Last but not least, the reputation of the supplier matters. Choose a supplier with a track record of delivering high-quality steel strapping and excellent customer service. Read reviews and ask for recommendations from industry peers to find a reliable supplier.
In conclusion, identifying the quality of steel strip for packaging involves assessing the material, dimensions, finish, edge treatment, tensile strength, testing, and supplier reputation. By paying attention to these factors, you can make informed decisions that will enhance the safety and reliability of your packaging solutions. Invest in high-quality steel strapping to protect your products and ensure smooth and secure transit, ultimately saving you time and money in the long run.
Tags: Top 10 Metal Packing Straps Manufacturers in China , What issues should be paid attention to when buying steel strapping&#;
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