Metal Processing Chemicals: Surface Treatment and Finishing Solutions

Exploring Metalworking Chemicals Deep Mysteries: From Surface Treatment to Finishing Efficient Solutions

In modern industrial production, the application of metal processing chemicals has penetrated into various fields. From surface treatment to finishing, the selection and application of chemicals directly determines the quality and production efficiency of products. This article will provide an in-depth analysis of the key role of metal processing chemicals in surface treatment and finishing solutions to help readers better understand the development trends and practical applications in this field.

1. surface preparation: chemical preliminary roles

Metal surface treatment is the first step to ensure machining accuracy and functionality. Surface treatment improves the surface chemical environment and reduces the surface tension and friction coefficient of subsequent processing, thereby improving processing efficiency. Metal processing chemicals play an important role in this process.

1. Surface passivation treatment Passivation treatment is to form a dense protective film through chemical reaction, reducing the activity of the surface. Common passivating agents include nitric acid, sulfuric acid, and chloride. Passivation treatment can not only prevent oxidation and rust, but also provide a good starting point for subsequent processes.

2. phosphating treatment Phosphating treatment significantly reduces the friction coefficient and prolongs the service life of tool by forming an inorganic zinc-rich layer. The type and formula of the phosphating agent directly affect the treatment effect, and the selection of the appropriate phosphating agent is the key to ensure uniform coverage and excellent performance.

3. Selection of chemical treatment process Different metal materials require different surface treatment methods. For example, carbon steel may require pickling passivation, while stainless steel may require microwave cleaning or chemical etching treatment. Choosing the appropriate surface treatment scheme is the basis for improving production efficiency.

Basics of Surface Treatment

In the process of surface treatment, the characteristics of chemicals directly affect the treatment effect. Chemical stability, corrosion performance and surface activity are key indicators for the selection of surface treatment chemicals. The temperature, pressure and time parameters of the process also need to be optimized according to the material properties.

2. Finishing: From Surface Treatment to Final Form

Finishing is an important link to achieve high precision and high efficiency. The uniform surface obtained by the surface treatment provides a good basis for finishing. The application of metal processing chemicals in finishing is mainly reflected in polishing and surface strengthening.

1. Chemical Mechanical Polishing (CMP) Through high-pressure water washing and mechanical movement, chemical mechanical polishing is an efficient method to achieve superfinishing. The choice of cleaning agent and polishing solution in CMP process directly affects the polishing effect and equipment life. Reasonable formulation design can maximize the use of equipment performance.

2. electrochemical polishing Electrochemical polishing promotes degreasing and polishing of metal surfaces through electrochemical reactions. Compared with chemical mechanical polishing, electrochemical polishing has better surface treatment effect and environmental protection advantages. Choosing appropriate electrode materials and polishing solution is the key to ensure high polishing efficiency.

3. mechanical polishing technology The mechanical polishing realizes the adjustment of the surface roughness by sandpaper or emery cloth. The efficiency and effect of mechanical polishing depends on the type of sandpaper and the frequency of use. When selecting sandpaper, it needs to be optimized according to material characteristics and processing requirements.

Combined with surface treatment

The combination of finishing and surface treatment is the key to achieving high precision and functional surfaces. The surface treatment provides a uniform basis for finishing, and finishing further improves the performance and structure of the surface. The synergistic effect of the two significantly improves the efficiency and effect of the processing process.

3. Metal Processing Chemicals Selection Criteria and Application Strategies

Choosing the right metalworking chemicals is key to ensuring successful surface treatment and finishing. The following are several important criteria for chemical selection and application strategies.

1. Material characteristics and chemical properties Depending on the chemical composition and physical properties of the material, suitable surface treatment and finishing chemicals are selected. For example, high-alloy steel may require a more corrosion-resistant treatment, while ordinary carbon steel can be used with simple methods such as pickling and passivation.

2. Corrosion performance In a complex working environment, the corrosion performance of materials directly affects the machining accuracy and life. The selection of processing chemicals with excellent corrosion stability can effectively extend the service life of equipment and materials.

3. Surface activity and uniform coverage Ensure that the processing chemicals cover the surface evenly to avoid dead or uneven coverage. Reasonable formulation design and optimization of process parameters are the key to achieve uniform coverage.

5. to reduce processing costs and extend equipment life strategy

In practical applications, in addition to paying attention to the effects of surface treatment and finishing, we should also pay attention to cost reduction and equipment maintenance. The following strategies are worth learning from:

1. process optimization By optimizing process parameters, such as temperature, pressure and time, material waste and energy consumption can be reduced, thereby reducing processing costs.

2. Improve equipment utilization By extending the service life of equipment and materials, the maintenance cost and replacement cost of the enterprise can be significantly reduced. Choosing the right processing chemicals is the key to improving equipment efficiency.

3. Adopt environmentally friendly products With the increasing awareness of environmental protection, the use of environmentally friendly processing chemicals and polishing agents has become an industry trend. These products not only reduce the pollution to the environment, but also meet the social responsibility requirements of modern enterprises.

   Conclusion The application of metal processing chemicals in surface treatment and finishing is an important means to achieve high precision and functional materials. Through reasonable selection, optimization of process and application of environmental protection concept, processing effect and production efficiency can be significantly improved. In the future, with the development of science and technology, the application of metal processing chemicals will be more intelligent and environmentally friendly, bringing greater changes to industrial production.