EN
Metal surface treatment is the core link to enhance the performance, durability and added value of metal products. It can not only improve the corrosion resistance, wear resistance and aesthetic properties of metal workpieces, but also tailor functional surface characteristics for products in different application scenarios. As a professional hardware and electromechanical enterprise with more than 10 years of industry experience and a registered capital of 10 million yuan, Cangzhou Deeplink International Supply Chain Co., Ltd. has built a comprehensive metal surface treatment system, covering 8 core processes including Polished, Anodizing, Powder Coated, Chrome Plating, Sand Blasting, Zinc Plating, Electroplating and Silk Screen.
Combined with our full-industry-chain metal fabrication capabilities (metal stamping, laser cutting, CNC machining, etc.), we provide one-stop surface treatment solutions for the global high-end manufacturing industry, and have won the trust of world-renowned brands with the core advantages of fast delivery, exquisite craftsmanship and stable quality. Below is a detailed introduction to our core metal surface treatment processes and exclusive service advantages.
Our Core Metal Surface Treatment Processes
We tailor the most suitable surface treatment process according to the material characteristics (aluminum bronze, stainless steel, brass, carbon steel, etc.), application environment (petrochemical field, outdoor harsh environment, precision electronic equipment, etc.) and functional requirements of the workpiece, and ensure the consistency and stability of the process effect through 80+ professional detection capabilities.
1. Polished (Polishing)
Polishing is a precision surface finishing process that uses flexible polishing tools and abrasive particles to modify the metal surface, which can be divided into rough polishing, fine polishing and mirror polishing according to the precision requirements.
- Process Features: Eliminate surface burrs and fine defects of workpieces, obtain smooth or mirror-like metal luster, improve the dimensional accuracy and geometric shape accuracy of workpieces, and enhance the aesthetic and tactile feel of products.
- DEEPLiNK Application: It is widely used in the surface finishing of metal hardware tools , stainless steel precision hardware and automotive decorative parts, and the polished surface can reach a high gloss finish to meet the high aesthetic requirements of high-end manufacturing.
2. Anodizing (Anodic Oxidation)
Anodic oxidation is an electrochemical process mainly for aluminum and its alloys, which forms a dense and porous aluminum oxide film (Al₂O₃) on the metal surface through electrolysis, and the film layer can be further colored and sealed for reinforcement.
- Process Features: The oxide film is metallurgically bonded with the substrate, with high adhesion, excellent wear resistance, corrosion resistance and insulation; it can realize color customization (black, bronze, red, blue, etc.) through electrolytic coloring or organic dyeing, and the color is durable.
- DEEPLiNK Application: Specialized in hard anodic oxidation and colored anodic oxidation of aluminum bronze metal tools in the petroleum and chemical industry, the thickened oxide film effectively improves the corrosion resistance of the tools in the harsh petrochemical working environment, and meets the IMPA industry standard requirements.
3. Powder Coated (Powder Coating)
Powder coating is an environmentally friendly dry coating process that uses electrostatic adsorption to attach powder coatings (epoxy, polyester, etc.) to the metal surface, and forms a uniform and dense coating after high-temperature baking and curing.
- Process Features: No VOC (volatile organic compound) emission, green and environmental protection; the coating is thick and wear-resistant, with strong impact resistance and excellent hiding power for workpiece surface defects; rich color options, support matte, high-gloss and wood grain imitation effects.
- DEEPLiNK Application: Applied to outdoor metal brackets, construction hardware, automotive accessories and other products, we use high-quality polyester powder for outdoor workpieces to ensure excellent weather resistance, and epoxy powder for indoor precision parts to enhance wear resistance, with the coating adhesion meeting international standards.
4. Chrome Plating (Chromium Plating)
Chrome plating is a special electroplating process that deposits a chromium layer on the metal surface through electrolysis, which is divided into decorative chrome plating and hard chrome plating according to the application purpose.
- Process Features: Decorative chrome plating has a bright silver-white luster, with excellent decorative effect and basic corrosion resistance (usually with copper-nickel bottom plating); hard chrome plating has ultra-high hardness (HV800-1100), excellent wear resistance and chemical stability, and low surface friction coefficient.
- DEEPLiNK Application: Decorative chrome plating is used for the surface of high-end hardware tools and automotive decorative parts; hard chrome plating is applied to the surface of mold parts, hydraulic rods and high-wear mechanical parts, effectively extending the service life of products.
5. Sand Blasting
Sand blasting uses compressed air as power to spray abrasive materials (steel shot, quartz sand, etc.) onto the metal surface at high speed, so that the workpiece surface obtains a certain clean degree and roughness.
- Process Features: Thoroughly remove oil, rust, scale and other contaminants on the metal surface; form a uniform rough surface, significantly improve the adhesion of the subsequent coating (electroplating, powder coating, etc.); can realize matte, frosted and other surface textures, and eliminate the stress concentration of the workpiece.
- DEEPLiNK Application: As the core pre-treatment process of all surface treatment, it is suitable for complex-shaped workpieces such as stamping parts and welding parts. Our professional sand blasting equipment can realize precise control of surface roughness, and is specially used for the pre-treatment of metal tool blanks to ensure the stability of the subsequent process effect.
6. Zinc Plating (Zinc Plating)
Zinc plating is a classic anti-corrosion surface treatment process for steel workpieces, which forms a zinc layer on the steel surface through electrolysis or hot dipping, and protects the substrate through the "sacrificial anode" principle.
- Process Features: Low cost and excellent anti-corrosion effect; the zinc layer can be passivated (colorful, black, blue-white) to further improve the corrosion resistance; the plating layer is uniform and suitable for complex-shaped steel workpieces.
- DEEPLiNK Application: Widely used in carbon steel stamping parts, metal brackets, hooks and outdoor hardware products, our zinc plating process meets the ROHS and REACH environmental standards, and the salt spray test resistance of the passivated zinc layer is significantly higher than the industry average.
7. Electroplating
Electroplating is a general electrochemical plating process that deposits metal ions (nickel, copper, zinc, chromium, etc.) on the cathode workpiece surface through electrolysis to form a uniform metal coating, which can be divided into decorative electroplating, protective electroplating and functional electroplating according to the functional positioning.
- Process Features: Rich coating options, which can be customized according to the requirements of anti-corrosion, wear resistance, conductivity and reflectivity; the plating layer is dense and uniform, and the decorative electroplating can obtain a high-gloss metal surface.
- DEEPLiNK Application: We have built an environmentally friendly electroplating production line that meets international standards, providing customized electroplating services such as copper plating, nickel plating and zinc plating for precision hardware, electronic components and metal tool accessories, and all processes comply with SGS environmental testing requirements.
8. Silk Screen (Silk Screen Printing)
Silk screen printing is a surface marking process that prints patterns, logos, scale marks and other information on the metal surface through a silk screen stencil and special ink, and forms a wear-resistant printing layer after curing.
- Process Features: High printing precision, clear patterns and characters; the printing ink has excellent adhesion, wear resistance and chemical resistance, and is not easy to fade and fall off; support personalized customization of patterns and colors.
- DEEPLiNK Application: Used for the personalized customization of hardware tools, industrial equipment accessories and automotive parts, we can print high-precision logos and technical parameters on the surface of workpieces of different shapes, and the printing effect is suitable for long-term use in harsh environments such as oil fields and mines.
Why Choose DEEPLiNK for Metal Surface Treatment?
As a factory-direct metal surface treatment service provider with a complete industrial chain, we have built an irreplaceable core competitive advantage through years of technical precipitation and equipment upgrading, and are committed to creating higher value for customers.
✅ Professional Technical Strength & Advanced Equipment
- We have 6 sets of automated surface treatment production lines with an automation level of 80%, realizing precise control of process parameters (temperature, current, coating thickness, etc.), and the processing tolerance can reach the micron level, which ensures the consistency of batch production.
- The core technical team has more than 10 years of industry experience, and can provide professional technical consulting and process optimization solutions for complex workpieces and special requirements.
✅ Complete International Certification & Strict Quality Control
- Our surface treatment processes and products have passed SGS, ROHS, REACH, ISO9001, ISO14001, ISO45001 and other international certifications, and the product quality meets the standards of the global high-end manufacturing industry.
- We have 80+ professional detection capabilities, and carry out full-process quality inspection from raw material incoming, process processing to finished product delivery (salt spray test, adhesion test, hardness test, etc.), with a product qualification rate of more than 99%.
✅ One-stop Customization Service & Full Industry Chain Support
- We provide personalized OEM/ODM customization services for surface treatment, and match the whole process of technical consulting, drawing design, sample testing, mass production, packaging and shipment and after-sales service to meet the customized needs of customers.
- Integrate metal stamping, laser cutting, metal bending, deep drawing, welding and riveting and other metal fabrication capabilities, realize the seamless connection between workpiece processing and surface treatment, shorten the production cycle and reduce the comprehensive cost for customers.
✅ Efficient After-sales Service & Global Delivery Capacity
- Our professional after-sales service team provides 24-hour fast response, and solves the technical problems and after-sales needs of customers in a timely manner.
- With perfect logistics and supply chain system, we realize factory direct sales and global delivery, and ensure the fast delivery of orders with the core service concept of "fast delivery".
✅ Rich Experience in High-end Industry Cooperation
We have rich surface treatment experience in high-end industries such as petroleum, chemical industry, mining and marine, and have become a long-term cooperative supplier of world-renowned brands . Our metal tool surface treatment process has passed the IMPA industry standard and is widely recognized in the global high-end manufacturing industry.
Get Your Custom Metal Surface Treatment Quote Now
DEEPLiNK is committed to providing high-quality, high-efficiency and customized metal surface treatment solutions for the global high-end manufacturing industry. Whether you need a single surface treatment process or a one-stop solution combining metal fabrication and surface treatment, our professional team can provide you with free DFM analysis and personalized quote according to your needs.
Contact us now and let DEEPLiNK's exquisite craftsmanship and stable quality become the core support for your product upgrading!