עקרון ויישום טכנולוגיית פוטופורזה של הכחדה

1. Matte Electrophoretic Technology

Matte electrophoretic technology is a specialized electrophoretic coating process for aluminum profile surface treatment. It creates a lowgloss matte or satin finish through resin matting principles while offering excellent weather resistance, עמידות בפני קורוזיה, and environmental performance. Key aspects include:

Technical Principle

The core of matte electrophoresis lies in achieving diffuse reflection via resin matting:

Resin Matting: Utilizes electrical differences between bonding resins to form insoluble microgel particles in the coating film. Variations in refractive indices across the film create diffuse reflection for a matte effect.

Molecular Weight: Matte electrophoretic paint has a higher molecular weight (70,000–80,000 g/mol) compared to glossy electrophoresis (25,000–40,000 g/mol), resulting in thicker films with enhanced durability.

Production Process

Typical steps:

1. טיפול מקדים: Degreasing, alkaline/acid cleaning, neutralization, and rinsing.
2. אנודיזציה: Sulfuric acid anodizing (10–12 μm film thickness).
3. Coloring: Singlenickel salt coloring determines final hue.
4. שְׁטִיפָה: Hot (60–80°C) and cold pure water washing (conductivity <50 μS/cm).
5. Electrophoresis: 180–250V voltage, 20–25°C, 2–5 minutes (15–20 μm coating).
6. הִתרַפְּאוּת: 160–190°C for 30–40 minutes (film hardness: 4–5H).

 

תכונות

Low Gloss: 60° gloss value <30 GU, reducing light pollution.

עמידות בפני מזג אוויר: 8,000+ hours in accelerated tests (vs. 1,500–4,500 hours for standard coatings).

EcoFriendly: Waterbased, low VOC emissions.

SelfCleaning: Stainresistant surface.

 

2. Aluminum Anodizing Technology

Anodizing is an electrochemical process that generates a dense oxide layer (Al₂O₃) on aluminum surfaces, enhancing corrosion resistance, wear resistance, ואסתטיקה.

עיקרון עבודה

Electrochemistry: Aluminum acts as the anode in an acidic electrolyte (לְמָשָׁל., sulfuric acid):

Anode: \( 2Al + 3H_2O \rightarrow Al_2O_3 + 6H^+ + 6e^ \)

Cathode: \( 6H^+ + 6e^ \rightarrow 3H_2↑ \)

Layer Structure:

Barrier Layer: Compact inner layer (0.01–0.1 μm).

Porous Layer: Honeycomb outer structure (10%–30% porosity).

זרימת תהליכים

1. טיפול מקדים: Degreasing → Alkaline etching → Neutralization.
2. אנודיזציה:

Electrolyte: 15%–20% sulfuric acid.

Parameters: 12–20V, 1–2 A/dm², 18–22°C, 30–60 min (5–25 μm thickness).

3. Coloring (אופציונלי):

Electrolytic: Metal salts (Ni, Sn) for bronze/black.

Dyeing: Organic dyes for colors.

4. אִטוּם: Hot water (90–100°C) or cold Ni/Fcontaining solutions.

 

Characteristics

Property	תֵאוּר
עמידות בפני קורוזיה	Withstands 1,000+ hours in salt spray tests
Hardness	200–400 HV (vs. 100 HV for bare aluminum)
בִּדוּד	Breakdown voltage: 30–100 V/μm (used in electronics)
Aesthetics	Customizable via coloring/matte finishe

Applications

Construction: חלונות, façades.

Industry: Automotive radiators, machinery.

Advanced Tech: Hard anodizing (＞50 μm) for aerospace.

Innovations

Hard Anodizing: Lowtemperature (0–10°C), highvoltage (40–100V).

Microarc Oxidation: Plasmaassisted ceramic coatings (＞2,000 HV).

 

 

 

Both translations maintain technical accuracy while ensuring readability for an international engineering audience. Let me know if you’d like any refinements!