Metal Surface Treatment

Metal surface treatment is an important process used in many industries. It involves the alteration of metal surfaces for a variety of reasons, including protection against corrosion and improving adhesion of coatings. This article examines the current state of metal surface treatment factories in China, and their importance to the manufacturing industry.

China has become one of the most influential countries in terms of production, technology, and innovation. As a result, metal surface treatment factories have been established in order to meet the needs of Chinese manufacturers. The use of these factories helps to increase the efficiency and effectiveness of metal surface treatments, as well as reduce costs associated with such processes. In addition, Chinese metal surface treatment factories are able to provide specialized services that are not available elsewhere.

The success of Chinese metal surface treatment factories depends on a number of factors, including quality control measures, technological advancements, and adherence to international standards. An analysis into these aspects will provide insight into how China is emerging as a leader in metal surface treatments and how this can benefit businesses both domestically and internationally.

Metal powder coating factory in China.

What is Surface Treatment?

All objects are inevitably in contact with the environment, and the real contact with the environment is the surface of the object. For a long time, it is recognized that once the use of product parts such as surface material loss and loss, it will cause changes in geometry and the use of performance damage, then reduce its service life, and even can not complete the normal work. For example, a variety of machinery and equipment parts, are often in the process of using the product corrosion, wear, oxidation, etc., its surface damage first, will cause the failure of the entire component, resulting in huge economic losses. According to statistics, the world’s steel production is 1/10 due to corrosion and loss, mechanical and electrical products manufacturing, and the use of about 1/3 of the energy directly consumed by friction and wear. Therefore, to improve the performance of products, it is necessary to start by delaying and controlling their surface failure.

Surface treatment is a discipline that improves the surface properties of substrate materials such as mechanical parts and electrical and electronic components.

It is the design of the material surface together with the substrate as a system, using various physical, chemical, or mechanical methods and techniques to make the material surface with different properties from the substrate. Surface treatment can modify the surface of the material, the preparation of a variety of properties of coatings, plating, seepage layer, and other coverings, multiply the life of the parts, and can be used to repair used parts, but also be used to prepare new materials. At present, surface treatment has become one of the key technologies of green remanufacturing engineering.

Definition of Surface Treatment 

Surface treatment is the pretreatment of the surface, through the surface coating, surface modification, a variety of surface technology composite treatments, changes in the chemical composition of solid metal surfaces or non-metallic surfaces, organizational structure, and stress state, in order to obtain the required surface properties of the system engineering. From a scientific system perspective, surface treatment is the study of the structural characteristics, physical, chemical, and mechanical behavior and properties of material surfaces and interfaces, the mechanisms of surface modification or reconstruction, and the corresponding engineering means. The function of surface treatment is to analyze the failure patterns and mechanisms of material surfaces, design new material surfaces and apply relevant surface technologies, and implement them to obtain new surfaces with good serviceability.

Surface treatment is the application of various coating technologies, surface modification technologies, etc. to improve the quality and extend the service life of products and parts. Surface treatment technology uses a variety of physicochemical or mechanical methods to change the morphology, chemical composition, organization, or stress state of the substrate surface to give it a special performance, so as to meet the specific requirements of the use of parts. Surface treatment is a combination of recent technology and classical surface technology and developed, both solid scientific basis, but also has obvious cross, edge discipline nature and strong practicality. Surface treatment is becoming increasingly useful in practical applications.

Metal Surface Treatment Factory in China

Features of Surface Treatment 

  • Gives special properties that are not available in the surface substrate material without changing the overall material of the part;
  • Various combinations of substrates and coatings can be realized. The base material can be metal, organic material, inorganic material, etc., and the coating layer can be a single or composite material consisting of metal, alloy, polymer, ceramic, amorphous state, etc;
  • Can be remanufactured for wear, and corrosion damage parts, so as to achieve energy savings, reduce losses, and protect the environment.

Surface Treatment Technology System

Surface treatment is an emerging discipline developed by multi-disciplinary crossover and synthesis, which takes “surface” as the core of research, based on the theory of related disciplines, according to the failure mechanism of the surface of the parts, featuring the application of various surfaces.

It takes “surface” as the core of research, based on the theories of related disciplines, features the application of various surface treatment technologies and their compounding, and gradually forms the basic theory of surface treatment closely related to other disciplines.

Surface treatment includes surface science, the basic theory of surface application, surface treatment technology, the application of the surface treatment, inspection and control of surface quality, the technical design of surface treatment etc.

Types of Metal Surface Treatment

There are many types of surface treatment technologies with different applications. From different perspectives of observation and analysis, surface treatment technologies can be classified according to the following methods.

Treatment Types by Discipline Characteristics

  •  Surface coating technology: Surface coating technology refers to the technique of coating a material surface with a liquid coating or depositing atoms of a plating material to form a coating or plating layer. Typical surface coating technologies include thermal spraying, surfacing, electroplating, chemical plating, vapor deposition, and painting.
  • Surface modification technology: Surface modification technology is the use of heat treatment, mechanical treatment, ion treatment and chemical treatment, etc., to change the composition of the surface layer of the material properties of the technology. Commonly used surface modification techniques include thermal expansion, conversion film, surface alloying, ion injection, and shot peening.
  • Surface thin film technology: Surface thin film technology is a variety of methods to deposit on the surface of the workpiece (or substrate) thickness of 100nm ~ 1wm or several micro-water thick film technology. According to the technical characteristics, thin films can be divided into six categories: optical films, microelectronics films, optoelectronics films, integrated optical films, information storage films, and protection function films; according to the composition of the film layer, thin films can be divided into metal films, alloy films, organic compound films, ceramic films, etc., and their preparation methods are mainly vapor phase deposition.

Treatment Types by Whether the Chemical Composition of the Surface is Changed or Not

Change of Surface Chemical Composition:

The chemical composition of the surface is changed, and the organization of the surface is also changed so that the surface has different properties.

  • Surface coating. By means of coating, patching, foil wrapping, electroplating, chemical plating, vapor deposition, fusion coating, thermal spraying, hot dip plating, overlay welding, etc., a layer or several layers of material of a certain thickness and different from the substrate are formed on the surface of the substrate to obtain a surface coating layer with a different chemical composition, structure and properties from that of the substrate.
  • No additional coating on the surface. Surface modification methods such as anodic oxidation, chemical heat treatment, surface alloying, ion implantation, etc. are used to bring the desired atoms (or ions) to the surface of the substrate to change the chemical composition, phase structure, and properties of the substrate surface.

No change in surface chemistry:

The chemical composition of the surface of the raw material is kept unchanged, and the surface structure of the surface is changed by surface quenching, shot peening, tumbling, re-baking, etc. to improve or enhance the performance of the surface.

Classification by the Type of Surface Coating

  • Surface without cladding: Through chemical pretreatment, finishing, mechanical strengthening, etc., the chemical composition of the substrate surface is not changed, but only the surface morphology, stress state and organization structure are changed.
  • Surface metal cladding: Metal, alloy and metal-based composite layers are formed on the surface of the substrate by electroplating, chemical town, thermal spraying, thermal diffusion plating, fusion plating, vapor deposition, surface alloying, etc.
  • Surface organic cladding: Coatings such as paint, rubber, plastic and tar coatings are applied to the surface of the substrate using methods such as painting.
  • Surface inorganic cladding: Enamel, glass, ceramic and cement coatings are applied to the surface of the substrate by means of thermal spraying, firing, baking, etc.
  • Surface chemical transformation layer: Formation of oxide, phosphate, chromate, oxalate film layer, etc. on the surface of steel or zinc, aluminum, magnesium, titanium metal or alloy by electrochemical and chemical treatment.

Treatment Types by Mechanism of Action

  • Atomic deposition: Atomic deposition is the deposition of substances in atomic, ionic, molecular and particle groups.
  •  Scale particle form on the surface of the material to form an applied coating layer, including electroplating, chemical plating, vapor deposition, etc.
  • Particle deposition: Particle deposition is the formation of a coating layer on the material surface in the form of macroscopic particles, including thermal spraying, enamel coating, etc.
  • Integral coverage: Integral coverage is the uniform coating of the covering material on the working surface of the material, including hot dip plating, patching, painting, overlay welding, etc.
  • Surface modification: Surface modification is the use of physical, chemical, mechanical and other methods to change the structure and properties of the material surface, including electrochemical transformation, surface treatment, chemical heat treatment, ion injection, shot peening, etc.

Treatment Types by the Characteristics of the Process Method

* Electrochemical method: Using electrode reaction to form a coating layer on the surface of the material substrate, such as electroplating, electrobrush plating, anodic oxidation, etc.

* Chemical method: Using the interaction and transformation of chemical substances to form a plating layer on the surface of the substrate, such as chemical plating, chemical transformation, etc.

* Thermal processing method: The material is melted or thermally expanded at high temperatures to form a coating layer on the surface of the substrate, such as thermal spraying, hot dip plating, overlay welding, cladding, surface alloying, etc.

* High vacuum method: Formation of the surface layer by vaporization and stimulated ionization of material under high vacuum, such as vacuum vapor deposition, ion plating, sputtering plating, etc.

Treatment Types by Functional Characteristics of the Surface Layer

  • Decoration: The surface has different colors and patterns to beautify the appearance of the material and increase visual appreciation.
  • Abrasion resistance and friction reduction: The surface is resistant to abrasive wear, adhesive wear, corrosive wear, etc., anti-scuffing bite, friction reduction and self-lubrication, wearable seal, etc.
  • Corrosion resistance: resistant to atmospheric, seawater, soil, chemical media impregnation corrosion, etc.
  • Heat resistance and thermal function: heat resistance, high-temperature oxidation resistance, thermal fatigue resistance, thermal insulation, thermal radiation, etc.
  • Light, electricity, magnetism, and other special functions: light, electricity, magnetism, light transmission, reflection, extinction, conductivity, superconductivity, insulation, semiconductor, soft magnetism, hard magnetism, magneto-optics, etc.
  • Others: Wave absorption, infrared reflection, solar energy absorption, shielding, explosive jointing, thermal processing, repair, catalysis, biological function, etc.

Metal Surface Treatment Companies

China has emerged as a major industrial power, and there is now a growing number of metal surface treatment companies in the country. These companies are providing cutting-edge technology to industries such as automotive, aerospace, medical devices, and electronics. Many of these companies are growth-oriented and have become recognized as leading surface technology providers in their respective markets.

These companies specialize in offering high-performance surface treatment solutions for candidates requiring effective metal surfaces with corrosion protection, wear resistance, and other qualities. They offer a range of services that include pretreatment, anodizing, galvanizing, electroplating, powder coating, painting and more. Companies use advanced technologies to ensure quality control and consistent results for all their customers needs.

Metal Surface Treatment Company in China

The Chinese metal surface treatment industry has been growing steadily over the years due to increased demand from local industries. This growth is further accelerated by strong government support for research and development initiatives that promote innovation in this sector. Companies are also investing heavily in new technologies to help them stay ahead of the competition and provide better products for their customers.

As the industry continues to grow and evolve, it is important for businesses to partner with reliable metal surface treatment companies in order to access the latest technologies and get the best possible results from their processes. By selecting a company that has experience in various types of treatments, businesses can ensure they are meeting their customer’s needs while staying ahead of trends in the marketplace.

Frequently Asked Questions

What Types Of Materials Can Be Treated With Metal Surface Treatments?

Metal surface treatments can be used to alter the properties of a range of materials. Depending on the desired outcome, different types of metal surface treatments can be employed. These include physical and chemical processes that are used to modify the surface of metals in order to improve their performance or aesthetic qualities. Commonly treated materials include steel, aluminum, titanium, and copper alloys.
Physical treatments involve processes such as blasting, grinding, honing, polishing, and sandblasting, which are used to change the shape or texture of a material’s surface. Chemical treatments involve the use of acids or other chemicals to remove oxides from metals or create a protective layer on their surfaces. These processes are often used in conjunction with one another in order to achieve the desired result.
In addition to these traditional methods of metal surface treatment, there has been an increasing trend towards using more environmentally friendly approaches such as electrolytic plating and electrochemical polishing. This is due to concerns about environmental pollution caused by traditional methods as well as advances in technology that have made these methods more efficient and cost effective.
The choice of which type of metal surface treatment will best suit a particular application will depend on several factors such as the desired finish or outcome, cost considerations, environmental concerns, and safety requirements. All these factors must be taken into account when choosing a method for treating any given material’s surface.

What Are The Environmental Benefits Of Using Metal Surface Treatment?

The environmental benefits of metal surface treatment have long been debated. Some believe that this process is more effective in preventing corrosion and rust than other methods, while others contend that it is detrimental to the environment due to its use of hazardous chemicals. To investigate the truth of this theory, one must consider the advantages and disadvantages of metal surface treatment from an environmental perspective.
One advantage of metal surface treatment is its ability to provide a protective coating against rust and corrosion. This reduces the need for frequent repairs and replacements, thus reducing emissions from production processes associated with these activities. Additionally, some metal surface treatments are non-toxic or even considered eco-friendly, further decreasing the risk of pollution from their use.
On the other hand, some metal surface treatments rely on the use of toxic chemicals that can be harmful to both humans and animals when released into the environment. These chemicals may also contaminate groundwater supplies if they are not disposed of properly, leading to further harm down the line. Furthermore, some metal surface treatments require large amounts of energy for application which can increase overall carbon emissions as well as air pollutants such as particulate matter and ozone precursors.
Despite these drawbacks, research has shown that many metal surface treatments have a positive effect on the environment when compared to traditional methods such as painting or galvanizing. The protective coating provided by these treatments helps reduce corrosion-related damage over time, resulting in lower levels of waste production and fewer resources being used in repairs or replacements. In addition, certain eco-friendly solutions are available that do not rely on hazardous chemicals nor emit high levels of pollutants during application or disposal.
Overall, there are clear environmental benefits associated with using metal surface treatment when compared to other methods; however, caution must be taken when selecting which product to use in order to ensure that no harm is done to either people or planet Earth in the process.

How Long Does The Metal Surface Treatment Process Take?

The process of metal surface treatment is an essential part of many industrial processes and the length of time required can vary depending on the type of treatment being applied. This article will discuss how long various types of treatments typically take, as well as any factors that may affect the duration.
To begin with, there are several steps involved in most metal surface treatments that can influence their duration. Firstly, the surface must be prepared by removing any existing coatings or contaminants. This can involve chemical cleaning, mechanical abrasion or power washing. Secondly, a new coating must be applied to protect the material from further corrosion or wear and tear. Lastly, the coating must be cured for a set period of time so that it adheres correctly to the substrate.
The length of time taken for each step in the treatment process depends on several factors:
* The type of treatment:
* Thermal spraying this method usually takes between 10-20 minutes per square foot, but can take up to an hour depending on the complexity of the job.
* Anodizing this technique usually takes between two and six hours depending on the size and complexity of the substrate being treated.
* The size and complexity of the substrate: Larger surfaces require more time to prepare and treat than smaller ones, while complex shapes may also add extra time due to having to reach all areas equally.
* Environmental conditions: Hotter temperatures can cause coatings to cure faster than normal, while colder temperatures may lead to longer curing times.
In order for metal surface treatments to achieve optimal results, it is important that they are carried out correctly and within a given timeframe; this includes taking into consideration any environmental factors which could impact their effectiveness. As such, it is advisable for factories using metal surface treatment processes in China to ensure they have sufficient resources available in terms of personnel and equipment so that their treatments are completed efficiently and without compromising quality standards.

What Types Of Safety Precautions Should Be Taken When Working With Metal Surface Treatments?

What types of safety precautions should be taken when working with metal surface treatments? Working with metal surface treatments can come with many potential hazards and risks. As such, it is important to ensure that the right safety procedures are in place to reduce the risk of injury or harm. In this article, let’s explore what steps should be taken when dealing with metal surface treatments.
What are some of the potential risks associated with metal surface treatments? Rhetorically speaking, could any of these risks be avoided through preventative measures? The reality is that when dealing with metal surfaces, there are a number of potential risks:
* Burns from hot surfaces
* Cuts and abrasions from sharp edges
* Respiratory irritation due to dust and fumes
* Exposure to hazardous chemicals
To help minimize these risks, employers must take proper safety precautions for the environment and workers. Here are three key steps to keep in mind:
1. Provide protective equipment such as gloves, face masks, goggles etc., depending on the type of work being done.
2. Ensure that all workers are adequately trained on how to safely handle the materials they will use. This includes using safety protocols such as wearing appropriate clothing and making sure that tools are properly maintained and stored away after use.
3. Employers should conduct regular inspections of the workspace to check for any potential hazards or risks which may have gone unnoticed during daily operations. Additionally, employers should provide their employees with safe disposal methods for hazardous waste materials generated during the process.
Taking all these measures into consideration can help create a safer working environment where accidents are less likely to happen due to improper handling or storage of materials used in metal surface treatments. It also helps employers meet their responsibility towards providing a safe working environment for their employees so that everyone can go home safely at the end of each day’s work.

Are There Any Specialized Tools Or Equipment Needed For Metal Surface Treatment?

When working with metal surface treatments, it is important to consider the specialized tools and equipment that may be needed. Many of these tools are designed specifically for metal surface treatments and can be used to achieve different results depending on the desired outcome. In order to ensure safe and successful operations, it is essential to have the right tools and equipment available.
The type of tool and equipment needed will depend on the type of treatment being performed. Some common tools used in metal surface treatments include grinding machines, sanders, polishers, and etching machines. Each one of these tools has its own purpose and application when performing metal surface treatments. For example, grinding machines are used to remove burrs or irregularities from a surface while sanders are used to create a smooth finish on a metal piece.
In addition to specialized tools for specific applications, other more general-purpose pieces of equipment such as protective eyewear, respirators, gloves, and aprons may also be necessary when carrying out metal surface treatment procedures. These safety items help protect workers from potential hazards associated with contact with hazardous materials or machinery parts that could cause injury or illness if not properly handled.
Other considerations should also be taken into account when selecting the appropriate tool or equipment for a specific job. Factors such as size restrictions, budget constraints, environment requirements (e.g., indoor/outdoor), ease of use, cost-effectiveness, energy efficiency, durability, and maintenance needs should all be considered when choosing the right tool or equipment for a particular task. It is also important to take into account any local regulations regarding safety protocols when handling hazardous materials or machinery parts during a metal surface treatment process.
By ensuring that workers have access to the right tools and equipment as well as following safety protocols accordingly, organizations can ensure successful outcomes in their metal surface treatment operations while protecting their personnel from harm.


Metal surface treatment is a cost-effective and environmentally friendly method to improve the surface of materials. It has become increasingly popular in China with many factories producing high-quality treatments for metals. According to statistics, metal surface treatment in China has seen more than a 20% increase in production over the past five years. This indicates that more and more industries are becoming aware of its benefits and using it to enhance their products.

In conclusion, if you are looking for a metal surface treatment solution for your business, then China is the place to go! With its wealth of experienced experts and factories, coupled with cost-effective manufacturing processes and quality assurance measures, you can rest assured that any metal finishing work you commission will be completed to a high standard. Get in touch with a China-based metal surface treatment factory today and let them show you just what they are capable of! 

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