Comprehensive Analysis of Stainless Steel Water Bottle Production Process (Precision & Efficiency Chapter)

"Every cup tells a story, bringing warmth to life." Hello everyone, this is "Dong Dong's Cup Talk"! Regular followers know I've been deeply involved in the water bottle industry for many years. As I've mentioned in previous posts, http://www.zhanyict.com/en/ProductsDetail-VB-10480.htmlour factory specializes in manufacturing stainless steel water bottles.

Today, I'll share with you the complete production process of stainless steel water bottles - how a beautiful insulated tumbler transforms from raw stainless steel material into your favorite daily companion. As always, due to the extensive content, I'll present this information in multiple installments. New friends who enjoy our content, http://www.zhanyict.com/en/ProductsDetail-VB-10480.htmlplease follow us to get the latest updates as soon as they're posted. And to our long-time followers - don't forget to give us a thumbs up!

II. Production Process: The Balance Between Precision and Efficiency

(1) Single-layer Stainless Steel Bottle Production Process

1. Material Cutting:

- Laser cutting of stainless steel coils with ±0.1mm precision

2. Deep Drawing Forming:

- Multi-station hydraulic press for progressive forming, maintaining wall thickness uniformity http://www.zhanyict.com/en/ProductsDetail-VB-10480.html(±0.05mm tolerance)

3. Welding:

- TIG welding for mouth and base connections (current controlled at 40-60A to prevent burn-through)

4. Surface Treatment:

- Sandblasting (180-240 grit) or electrolytic polishing to enhance texture and quality

(2) Core Processes for Double-wall Vacuum Insulated Bottles

A. Inner Wall Spin Thinning (Critical!)

- CNC spinning machines reduce material thickness from 0.3mm to 0.12mm (material elongation rate must be ≥60%; http://www.zhanyict.com/en/ProductsDetail-VB-10480.html304/316 stainless steel recommended)

- Advantage: Saves 15% material compared to deep drawing process

- Challenge: High equipment cost (over ¥1 million per imported spinning machine)

B. Vacuum Extraction and Sealing

- High-temperature (400°C) degassing followed by molecular pump evacuation to 10⁻³Pa

- Failure Case (2018): Insufficient sealing temperature caused vacuum level to degrade to 10⁻¹Pa within 3 days, http://www.zhanyict.com/en/ProductsDetail-VB-10480.htmlresulting in 50% reduction in insulation performance

Precision manufacturing requires careful balancing of technical parameters - next time we'll explore more quality control breakthroughs!

(Key Terms: TIG welding = Tungsten Inert Gas welding; Spin thinning = Material thinning through spinning process; Molecular pump = High-vacuum pump technology)