In the field of machining, surface treatment technology is a key link to enhance the performance and value of parts.
By using abrasive materials like sand grains and steel shots ejected at high speed to impact the surface of parts, oxide skin, rust, and burrs are rapidly stripped away. This process not only cleans the surface but also intentionally increases roughness, “creating grip” for subsequent coatings and enabling protective or decorative layers to adhere more firmly.
Using the chemical action of acid solutions such as hydrochloric acid and sulfuric acid, the oxide film and rust on the metal surface are dissolved. As a “standard operation” prior to the processing of stainless steel as well as iron and steel parts, it’s like giving the metal a “deep cleaning”, clearing “obstacles” for subsequent processes.
Through a chemical reaction, a phosphate protective film is deposited on the metal surface. This film acts as an “invisible shield” — it not only enhances the corrosion resistance of parts but also enables better adhesion of subsequent coatings, making it particularly common in auto parts manufacturing.
Zinc layer blocks moisture; regular corrosion solution (with color passivation).
Hard & glossy chromium: decorative for brightness, hard for wear resistance (molds/piston rods).
Corrosion-resistant & glossy; top pick for electronics/precision instruments (protection + beauty).
High conductivity/oxidation resistance; for high-end contacts & luxurious decoration.
Paint and powder coating are applied as protective films via spraying. The primer prevents rust, while the topcoat ensures aesthetics and wear resistance. Both metal and non – metal parts can be coated with this protective and decorative layer.
By means of electric field force, paint particles adhere evenly to the surface of parts. The coating boasts strong adhesion and uniform coverage, effectively meeting the corrosion prevention and aesthetic needs of auto bodies and hardware components.）
The high temperature of the electric arc melts metal wires, which are then sprayed to form a coating. It is a practical choice for scenarios like bridge steel structures requiring wear resistance and corrosion protection, providing “protective armor” for large-scale components.
The plasma flame flow turns into a “high-temperature furnace” to melt materials such as ceramics and metals, creating a high-temperature-resistant and wear-resistant “golden bell jar” for engine blades and other key parts, ensuring their stable operation.
“Power is applied” to aluminum and aluminum alloys to generate an oxide film on their surface .This film can be dyed into various colors, and at the same time, the corrosion resistance and hardness of parts are improved. Mobile phone cases and door – window profiles often use this process to “renew appearance and enhance protection”.
Iron and steel parts are “transformed” in a high – temperature alkaline solution to form a black oxide film. It is both rust – preventive and beautiful. Tools and mechanical parts “wear” this black coat, achieving both practicality and improved appearance.
“Chemical care” is carried out on stainless steel and galvanized parts with nitric acid, etc., to generate a passivation film. It is like adding an “invisible barrier” to parts, further enhancing corrosion resistance.
By virtue of high temperature, carbon and nitrogen atoms “penetrate” into the metal surface layer, creating a “hard surface layer” for stressed parts such as gears and bearings, enhancing wear resistance and compression resistance, and making parts more “durable”.
“Rapid cooling” is carried out on the surface layer of iron and steel parts to stimulate the improvement of hardness and wear resistance. For parts such as cutters and molds that pursue “strong strength”, quenching is a key step to enhance performance.
Using laser as a “scalpel”, the microstructure of the surface layer of parts is precisely changed. Hardness, wear resistance, and corrosion resistance are improved as needed, customizing “exclusive performance” for high – end parts.
Through mechanical grinding or chemical action, the surface roughness of parts is reduced. Mirror polishing pursues extreme brightness, and electrolytic polishing achieves efficient cleaning, making the “appearance” of parts more delicate.
“Adding colors” on the basis of anodizing, through dyeing or electrolysis, aluminum parts are endowed with rich colors. The colorful appearance of mobile phone cases and door – window profiles is mostly “outlined” by this process.
As a zinc – chromium coating technology, it creates a “salt – spray – resistant armor” for parts in high – corrosion environments (such as auto chassis and marine equipment). The excellent corrosion resistance allows parts to “remain stable as Mount Tai” even in harsh environments.
Professional Solutions to Empower Both Performance and Aesthetics of Your Products
Your Surface Treatment Expert, Covering All Needs
We cover all surface treatment processes—from pre-treatment (sand blasting, pickling) to high-end modification (laser treatment, carburizing/nitriding). Tailored solutions for materials (steel, aluminum, etc.) and scenarios (corrosion resistance, wear resistance) meet diverse needs, no “one-size-fits-all.”
With refined control over key parameters (plating density, coating thickness), we ensure core indicators (adhesion, salt spray resistance, hardness) exceed industry standards. Proven results across bridge structures, engine blades, and electronics guarantee durable protection and stable performance.
The excellent structural properties of engineering-grade CNC machined plastics, including electrical insulation and strength-to-weight ratio, make them ideal for plastic machining. Thus, with plastic machining, machinists can use a wider range of materials for plastic fabrication, with popular ones including HDPE, ABS, Nylon, Acrylic, Delrin, PEEK, and so on.
From consumer electronics (e.g., mobile phone casings, smart wearables) to heavy industries (bridge steel structures, auto chassis), and precision machinery (engine blades, cutters/molds), surface treatment is key to enhancing corrosion resistance, wear resistance, and aesthetics. It’s especially a “must – have” in high – corrosion (marine equipment) and high – friction (mechanical transmission parts) scenarios to ensure product lifespan and performance.
For corrosion – prevention focus, Dacromet treatment and chemical conversion coatings (e.g., passivation) are preferred. For wear resistance, carburizing/nitriding and quenching work better. To balance aesthetics and protection, anodizing coloring or electroplating spraying fits. We customize solutions balancing “needs + cost + effect” based on material (aluminum/steel/alloy) and operating environment (outdoor/high – temperature/high – humidity).
We ensure this in three ways: ① Process standardization: Strictly control parameters (e.g., electroplating current, spraying thickness); ② Full – process inspection: From raw materials to finished products, verify via salt spray tests, adhesion tests, etc.; ③ Experience – driven: Leverage years of industry cases to precisely match processes with needs. Making every treatment “performance – compliant and quality – controllable”.
Yes! We optimize for complex structures: ① Precision pre – cleaning for dead corners; ② Flexible processes (laser treatment, chemical conversion coating) for irregular parts; ③ Compatibility tests before process stacking (e.g., verify film stability after anodizing + coloring). From design to execution, ensure multi – process synergy for uniform, high – quality treatment on complex parts.
Cost varies by process and needs. We control cost via: ① Precision process selection: No over – specifying high – end tech, match “need levels” (e.g., Dacromet for general corrosion vs. special coatings); ② Batch optimization: Scale production to lower unit cost; ③ Full – cycle service: Pre – treatment & maintenance advice to extend part lifespan, cutting long – term costs. Balance “good performance” and “cost control”.
We practice green processes: ① Eco – friendly chemicals (cyanide – free plating, low – VOC coatings); ② Wastewater/exhaust purification for compliant discharge; ③ Upgrade processes (e.g., laser treatment replaces polluting traditional methods). From source to end, fully comply with national environmental regulations (RoHS, REACH), enabling “green production, compliant export” for your products.
Standard lead time: 5 – 15 days (varies by process complexity). We ensure: ① Standardized processes to cut waiting time; ② Flexible capacity (urgent – order production lines); ③ Pre – stocked materials (for common metals/processes). Regular orders on – time, urgent orders responded in 2 – 3 days. Keep your project “controllable, accelerable”.
