Black Passivation Kya Hai? Zinc Electroplating Mein Matt Black Finish Ka Full Raaz!
Black Passivation Kya Hai? Zinc Electroplating Mein Matt Black Finish Ka Full Raaz!
Introduction: Black passivation ek aisi advanced coating technique hai jo zinc plated metal surface ko ek sundar, durable aur corrosion-resistant black finish deti hai. Yeh process specially Faridabad jaise industrial zones mein kaafi demand mein hai, kyunki yeh automotive, hardware aur electrical industries mein extensively use hoti hai.
Black Passivation Kya Hai?
Zinc plating ke baad metal surface par ek chemical layer apply ki jaati hai jise "Black Passivation" kehte hain. Is process mein metal ko corrosive environment se bachaane ke liye black oxide ya chromate-based solution mein dip kiya jaata hai.
Black Passivation Ki Process:
- Step 1: Zinc Plating – Workpiece ko electroplating ke through zinc se coat kiya jaata hai (usually 8–12 microns).
- Step 2: Rinse – Clean water se dhona hota hai.
- Step 3: Black Passivation Solution – Solution mein 15–45 seconds dip kiya jaata hai.
- Step 4: Sealing/Topcoat – Optional hota hai but rust protection ke liye zaroori hota hai.
Matt Black Finish Kaise Achieve Kare?
- Micron Thickness: 8 to 12 microns zinc plating best hoti hai matte finish ke liye.
- Timing: 20–30 seconds dip kaafi hoti hai.
- Solution Temperature: Room temp (20–30°C).
- Avoid brighteners in zinc bath – matte plating ke liye rougher surface chahiye hota hai.
Best Chemistry in Faridabad:
Faridabad mein kuch reputed suppliers jaise MacDermid, Surpass, Atotech, etc. ke chemicals use hote hain. Inmein cobalt-free aur chromium-III based black passivation solutions available hote hain.
Common Mistakes to Avoid:
- Zinc plating uneven ya low thickness
- Passivation tank ka pH out of range (Ideal pH: 2.2 – 2.8)
- Post-passivation rinse kaafi nahi hona
Conclusion:
Agar aap ek high-quality matt black finish chahte hain to plating thickness, passivation timing aur chemical quality teenon ka dhyan dena hoga. Faridabad mein agar expert plating services chahiye, toh Rawat Electroplaters aapke liye best choice ho sakta hai!
About Rawat Electroplaters
Rawat Electroplaters is a trusted name in the electroplating industry, operating from Faridabad for over 15 years. We specialize in high-quality Zinc Electroplating, serving automotive, hardware, and industrial clients.
Our state-of-the-art plant, skilled workers, and commitment to timely delivery make us a reliable partner for industries. We are ISO-certified and follow eco-friendly practices to ensure customer satisfaction and sustainable development.
✨ Trusted by 50+ manufacturers across Faridabad & Delhi NCR.
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Our Electroplating Services
- ✅ Zinc Electroplating – Blue, White, Yellow & Black
- ✅ Acid Zinc & Alkaline Zinc Plating
- ✅ Degreasing & Pickling Process
- ✅ Passivation – Bright & Matte Finish
- ✅ Bulk Order Handling with 24-hour Delivery
- ✅ Free Trial Coating for New Customers
- ✅ Rust-proof, Smooth & Durable Coatings
Call now for custom electroplating solutions: 8700710086
Get In Touch
📍 Address: Plot No. 424, Sector 58, Faridabad, Haryana
📞 Phone: 8700710086
📧 Email: rawatelectroplaters@gmail.com
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