Custom DLC Coating Service is a post-process enhancement for Hansheng Automation's products after CNC machining. Our comprehensive CNC machining system boasts a precision of ±0.01mm for conventional turning and milling, ±0.005mm for precision grinding and turning, and micron-level precision of ±0.002mm for ultra-mirror finishing. As a professional packaging machinery parts supplier, we offer comprehensive manufacturing capabilities encompassing gear manufacturing, CNC machining, and custom casting. This means we can provide any component you require for your equipment, including customization.
Product Features
Customizable solutions:
Our customized DLC coating service can be individually designed to meet your requirements. If you need to specify the thickness, hardness and surface finish of your parts for DLC coating, we can adjust the corresponding parameters for you. This ensures that your parts are perfectly coated with DLC.
Performance Advantages:
DLC-coated items will have very high performance. Excellent wear resistance and minimal friction translate into low energy consumption when one uses high hardness. It will also possess outstanding chemical stability and corrosion resistance. These coatings guarantee smooth operation and a longer service life of the parts by being also self-lubricating among other things. Depending on the kind of coating, our DLC coatings can resist temperatures up to 600°C and keep their integrity in demanding surroundings.
Technical Parameters
DLC Coating Introduction
Excellent performance from amorphous materials with a diamond-like microstructure comes from DLC coatings. Applied on a range of substrates, including metals (e.g., steel, aluminium), ceramics, and even some polymers, this adaptable coating solution can The special structure of the coating provides great dielectric strength, strong thermal conductivity, and in certain situations outstanding optical qualities.
| Item | Specification | Test Standard |
|---|---|---|
| Coating Type | Diamond-Like Carbon (DLC) | ISO 14577 |
| Hardness | 2000-3500 HV (Typical: 3300HV) | Vickers Hardness Test |
| Thickness Range | Total thickness: 0.5-20μm Single side: 1-3μm |
Coulometry/SEM |
| Friction Coefficient (Dry) | 0.02-0.1 (Typical: 0.1) | ASTM G99 |
| Salt Spray Resistance | ≥1000 hours (No rust) | ASTM B117 |
| Maximum Service Temperature | 350℃ | - |
| Coating Process Temperature | <260℃ | - |
| Suitable Substrates | Stainless Steel/Titanium Alloy/Aluminum Alloy/Ceramics/Plastics etc. | - |
| Coating Color | Black/Grey/Dark Grey/Colored (Customizable) | - |
| Core Advantages | Self-lubricating, Low-temperature Deposition, High Surface Finish, Anti-adhesion | - |
Note: The "typical values" in the table are measured parameters under common application scenarios. Specific performance can be customized through process adjustments.
Custom DLC Coating Process Flow
1 the workpiece substrate treatment, the workpiece will be polished to less than Ra0.2um, the operation needs to pay attention to the substrate surface treatment can not leave dead ends, which affects the film layer and the substrate can be firmly combined.
2 fully cleaned, the workpiece to be coated to be fully cleaned, the workpiece is mounted on a set of fixtures, fixtures are designed on the basis of optimizing the loading size of the cavity and ensuring the uniformity of the coating. Cleaning method for the vacuum chamber vacuum to 10-6 torr (high vacuum) to exclude any contaminants in the system, the vacuum chamber inert gas and make it ionized, this is the gas cleaning stage to make the parts ready for metal precipitation.
3 metal precipitation, in the precipitation of solid metal (refers to the target material) loaded with high-current, low-voltage arc, the metal is evaporated and instantaneous ionization, metal ions in the role of high-energy through the inert gas or active gas into the chamber and precipitated on the workpiece.
Applications of DLC Coating Service
Automotive Industry：Dlc coating finds application in the automotive sector for parts including engine valves, gears, and piston rings. DLC-covered parts' low friction and great wear resistance help to lower maintenance costs and increase fuel economy. For instance, dlc - coated piston rings show lower friction loss, therefore improving engine performance.
Semiconductor and Electronics: DLC coatings are perfect for tools for semiconductor manufacture and connectors. The resistance to corrosion and electrical insulating qualities of the coating guarantee consistent signal transmissions and extended service life for electronic equipment.
Precision Tools and Molds：Dlc coating greatly increases the service life of precision tools (such cutting tools) and moulds (such injection-mould tools). While its non-stick qualities prevent material adhesion, guaranteeing exact and consistent production, the great hardness of the coating lowers wear from repeated use.
Aerospace: Components used in aerospace applications sometimes endure severe conditions and temperatures. Turbine blades, bearings, and other vital components make use of DLC-coated parts, which have great thermal stability and low - friction characteristics, so enhancing dependability and performance.
At Hansheng Automation, our customized DLC coating services are dedicated to providing innovative, high-quality solutions. Whether you need DLC coatings for performance enhancement, wear resistance or corrosion protection, we have the expertise and technology to meet your needs.
Contact us today at info@hansmat.com to discuss your specific requirements and experience the difference our specialized DLC coating services can make!
FAQ
Q: Can I be guaranteed a coating for parts with complex shapes?
A: Yes, Our customized services are tailored to the specific shape of the part and parameters are adjusted to ensure even complex geometries are covered with a uniform and perfect DLC coating to meet your practical needs.
Q: What is the role of self-lubrication in practice?
A: Particularly in applications where it is difficult to add conventional lubricants or where the lubrication needs are high, the self-lubrication function lets the parts run smoothly without additional lubrication, lowers friction losses and heat, increases efficiency and extends the service life of the parts.
Q: Do different substrates have an effect on the effectiveness of the coating?
A: Different substrates (e.g. stainless steel, titanium alloys, aluminum alloys, ceramics, plastics, etc.) have different material properties. To minimise the effect of substrate variations on the coating effect, we conduct pre-treatments and other activities appropriately when we execute the DLC coating process, thereby ensuring that the coating adheres well to the substrate and generates the expected performance effect.
Q: How does the metal precipitation step work?
A: In the metal precipitation step, we will load the solid metal (i.e. target material) with high current and low voltage arc, which makes the metal evaporate and ionize instantly, and then the metal ions enter the chamber through inert gas or active gas under the action of high energy, and finally precipitate on the workpiece, so as to realize the deposition of the coating on the surface of the workpiece.
Q: How specifically do DLC coatings improve fuel economy in automotive applications?
A: Because DLC coatings have low friction and great wear resistance, they help to minimise friction losses between parts in the automotive sector including engine valves, gears and piston rings. For piston rings, for instance, less friction losses translate into smoother engine performance, which lowers energy losses, increases fuel economy, and helps to cut maintenance costs.
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