What is DLC process technology

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Author : Vanmodel
Update time : 2024-10-25 21:57:00
DLC technology refers to Diamond-like Carbon, which is a technology that forms a diamond-like carbon film on the surface of an object to enhance the hardness, wear resistance and reduce the friction coefficient of the material. DLC technology is widely used in injection molds, automobiles, tools, machinery, aerospace and medical fields.
CNC machined metal parts are often treated with DLC to increase the hardness of the parts surface and reduce the friction coefficient of the parts surface. The principle of DLC process technology is to use chemical vapor deposition to form an amorphous carbon film on the surface of the material. This film is composed of carbon and Element "H" atoms and has a structure and hardness similar to diamond. DLC film can obtain different properties and applications by adjusting the reaction atmosphere and deposition conditions.During the deposition process, carbon ions in the reaction gas enter the material surface through ion bombardment, ion beam or chemical reaction, and form a continuous, dense and uniform thickness carbon film.

DLC process technology has many advantages. First, DLC film has a high hardness, usually up to 2000-3000Hv, which is harder than many metal and ceramic materials. Second, DLC film has a low friction coefficient and surface energy, which can significantly reduce friction and wear between materials. In addition, DLC film has good resistance to chemical corrosion and oxidation, and can protect the surface of the material from corrosion and oxidation. In addition, DLC film also has good optical properties and can be used as an anti-reflective coating and touch screen protective layer. DLC process technology has a wide range of applications in many fields. In the electronics field, DLC film is often used to manufacture hard disk heads, touch screen protective layers, and LCD display coatings. These applications can improve the hardness and wear resistance of products and extend product life. In the mechanical field, DLC film is often used to manufacture automotive engine parts, tool blades, bearings, some friction parts in aerospace parts, and some parts in medical devices that need to provide surface hardness and wear resistance. These applications can improve the wear resistance of parts and reduce energy loss. In the aerospace field, DLC film is often used to manufacture aerospace engine parts and turbine blades. These applications can improve the high temperature resistance of parts and reduce the friction coefficient, thereby improving engine efficiency. In the medical field, DLC films are often used to manufacture artificial joints, dental instruments and heart valves. These applications can improve the biocompatibility, wear resistance and reduce the risk of infection of medical devices. In general, DLC process technology is a high-tech coating technology that can improve the hardness, wear resistance and reduce the friction coefficient of materials. It has a wide range of applications in electronics, machinery, aerospace and medical fields, which can improve product performance and extend service life. With the continuous advancement of science and technology, we believe that DLC process technology will be more widely used and developed.

The processing process of DLC coating generally includes the following steps:
1. Pretreatment: Clean and polish the material to remove dirt, oxides and roughness on the surface and improve the adhesion of the coating.
2. Plasma pretreatment: Use plasma technology to activate the surface of the material to increase the surface energy and improve the adhesion of the coating.
3. Coating deposition: Use physical vapor deposition (PVD) or chemical vapor deposition (CVD) and other methods to deposit DLC coating on the surface of the substrate. During the deposition process, the coating's thickness, hardness, friction coefficient and other properties can be controlled.
4. Post-processing: Polish and hone the coating to improve the surface finish and precision.
5. Quality inspection: Test the coating's hardness, adhesion, wear resistance and other properties to ensure that the coating quality meets the requirements.
The processing process of DLC coating may vary depending on the specific application and material. In actual production, it needs to be adjusted and optimized according to the specific situation.

" Vanmodel " is a company that provides CNC machining parts (including CNC Milling and CNC turning) and injection molds (including plastic injection molds and metal die-casting molds). We provide auto parts to many auto companies, so we are also their cooperative auto parts factory/auto parts manufacturer.
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