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Spray Painting Industry Solutions: A Guide to Technological Innovation and Full-Scenario Applications

Release Time：

2025-05-23 10:25

1. Automotive Manufacturing Electrophoretic coating: Cathodic electro-deposition (CED) film thickness 20±2μm, salt spray test 1000h without rust Topcoat spraying: Dupont waterborne color paint + 2K clear coat system (baking temperature 140℃/30min) Robot rotary cup electrostatic spraying (speed 50,000rpm, coating rate ≥85%)

I. Industry Pain Points and Core Needs

Pain Points	Technical Requirements	Market Trends
Insufficient coating adhesion	Nanometer-scale surface pretreatment technology	Environmentally friendly pretreatment to replace phosphating
VOC emissions exceed standards	Water-based coatings/high-solids coatings application	EU VOC limit to be reduced by another 30% in 2024
Uneven spraying of irregularly shaped parts	Robot path planning + electrostatic spraying optimization	Automotive bumper yield requirement ≥99.5%
High proportion of labor costs	Intelligent spraying island (AI visual positioning)	3C industry automation rate exceeds 85%

II. Full-Scenario Spraying Solutions

1. Automotive Manufacturing Field

Electrophoretic coating: Cathodic electrophoretic deposition (CED) film thickness 20±2μm, salt spray test 1000h without rust

Topcoat spraying:

DuPont water-based color paint + 2K clear coat system (baking temperature 140℃/30min)

Robot rotary cup electrostatic spraying (speed 50,000rpm, coating rate ≥85%)

Innovative solutions:

Tesla integrated die-casting body without intermediate coating process (saves 15% paint)

BMW iFACTORY dry spray booth (energy saving 60%)

2. 3C Electronics Field

Mobile phone casing:

Nano-spraying (film thickness 8-12μm) + AF anti-fingerprint coating

Xiaomi MIX Fold 3 uses magnetron sputtering film deposition + UV curing

Keyboard coating:

Skin-like PU spraying (hand feel Ra0.4-0.6μm)

Logitech G series keyboard anti-sweat test >10,000 friction times

3. Heavy Machinery Field

Engineering machinery:

Epoxy zinc-rich primer (dry film 80μm) + polyurethane topcoat

Sany Heavy Industry uses arc spraying aluminum layer (weather resistance improved by 3 times)

Ship anti-corrosion:

Wuxi Lanxing SPC zinc silicate paint (salt spray resistance >15 years)

Spraying robot equipped with explosion-proof system (ATEX certified)

4. Home Appliances and Furniture Field

Refrigerator panel:

Powder coating (AkzoNobel Interpon D series)

Midea microcrystalline X panel passed 100,000 steel wool tests

Furniture UV coating:

Zhanchen 7-layer base and 3-layer topcoat process (mirror effect ΔE≤0.5)

Fully automatic UV curing line (energy density ≥800mJ/cm²)

III. Cutting-Edge Technology Applications

1. Environmental Protection Technology

Supercritical CO₂ spraying:

BASF developed a replacement for solvent-based coatings, zero VOC emissions

Suitable for high-end fields such as medical equipment

Bio-based coatings:

PPG launched soybean oil modified resin (bio-carbon content ≥30%)

2. Intelligent Spraying System

AI real-time control:

Fanuc PaintPRO system dynamically adjusts atomization pressure (±0.1bar)

Mercedes-Benz factory paint utilization rate increased to 92%

Digital twin quality inspection:

Schneider Electric uses 3D scanning to compare coating thickness (accuracy ±1μm)

3. Special Processes

Cold spraying (Cold Spray):

Lockheed Martin used for fighter jet component repair (particle speed 800m/s)

Huawei 5G base station heat sink metal coating preparation

Plasma spraying:

Siemens gas turbine blade Al₂O₃ coating (temperature resistance 1600℃)

IV. Equipment Selection Guide

Process Type	Recommended Equipment	Key Parameters
High-precision electrostatic spraying	Durr EcoRP E033 rotary cup	Atomization particle size 15-25μm
Large-scale powder spraying	Jinma intelligent spray booth (recovery rate ≥98%)	Powder output 200-500g/min
Small batch multicolor spraying	ABB IRB 5500 robot + color change valve	Color change time < 8 seconds
Ultra-high speed UV curing	Haolisun UVLED system	Wavelength 365nm, power 10W/cm²

Precautions for the entire process of mold use and maintenance

A detailed guide to CNC product usage precautions, covering key aspects such as equipment operation, maintenance, and safety regulations, to help ensure machining accuracy, extend equipment life, and ensure operational safety

More Information

Precautions for the entire process of mold use and maintenance

Confirm that the parting surface is free of scratches (Ra≤0.8μm). Check that the ejector pin/slider moves smoothly (manual stroke test). Verify the patency of the cooling water channels (flow meter test, pressure drop ≤0.1MPa)

Spray Painting Industry Solutions: A Guide to Technological Innovation and Full-Scenario Applications

Confirm that the power supply and pneumatic/hydraulic system are stable (voltage fluctuation ≤ ±10%). Check the lubrication status of the guide rails and lead screws, ensuring that there is sufficient lubricating oil (ISO VG32 or higher guide rail oil is recommended). Verify the rigidity of the fixture/tooling to avoid machining vibrations (torque wrench tightening and a bolt pre-tightening force error ≤ 5% are recommended).

Development dynamics of the die casting industry

Tesla Upgrades Giga Press: Utilizing the latest 16,000-ton die-casting machine from Italy's IDRA Group, the entire lower body of the Cybertruck is now cast as a single piece. This reduces the number of parts from 171 to 1 and shortens production time from 2 hours to 3 minutes. Chinese Automakers Follow Suit: NIO's Hefei factory has put into operation a 9,000-ton die-casting island, reducing the weight of the ET5 underbody by 30%; XPeng's Wuhan base has introduced a 12,000-ton die-casting machine from LKM, with mass production of a new SUV planned for 2024.

Trends in the die casting industry in 2025

The die casting industry market size will continue to grow in 2025, driven by the surging demand for lightweighting from new energy vehicles. Technological innovation is leading to upgrades, while industry chain integration and collaboration, environmental protection and sustainable development, international market opportunities, significant regional cluster effects, and increasing customized demands are creating vast development opportunities.

Die casting molds are indispensable tools in manufacturing. Made from metal, they boast high precision and durability.

In die casting, molten metal is injected into the mold cavity of a die, and after the metal cools and solidifies, the desired product is formed.