500X500X4MM 100% 3K Plain Weave Carbon Fiber Sheet Laminate Plate Twill Weave Plate

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500X500X4MM 100% 3K Plain Weave Carbon Fiber Sheet Laminate Plate Twill Weave Plate

The Plain Weave Carbon Fiber Sheet is a high-performance composite material made from 3K carbon fiber fabric arranged in a plain (1×1) weave pattern and cured with high-strength epoxy resin under vacuum pressure or autoclave technology. In this weave, each carbon fiber tow passes alternately over and under the perpendicular tows, forming a tight, checkerboard-like structure that provides excellent stability, uniform strength, and smooth surface quality.

This sheet combines the lightweight advantage of carbon fiber with high rigidity and outstanding dimensional stability. The tight interlacing of the plain weave enhances resistance to deformation and surface impact, making it ideal for structural applications requiring flatness and stiffness rather than deep draping.

Key Features

• High Strength-to-Weight Ratio: Up to five times stronger than steel at a fraction of the weight.
• Balanced Mechanical Properties: Equal stiffness and strength along both fiber directions (warp and weft).
• Smooth and Uniform Surface: Tight weave results in a clean, fine appearance with low porosity.
• Excellent Dimensional Stability: Minimal distortion under load or thermal expansion.
• Superior Rigidity: Ideal for flat panels and structural components.
• Corrosion and Fatigue Resistance: Long service life under harsh or repetitive use.
• Multiple Finish Options: Glossy or matte surface available for different aesthetic or functional needs.
• Easy to Machine and Bond: Can be CNC-cut, drilled, and bonded using epoxy or structural adhesives.

Manufacturing Process

1. Fabric Lay-up: 3K plain weave fabric is stacked in alternating orientations (0°/90°) to ensure balanced strength.
2. Resin Infusion or Prepreg Layup: Layers are impregnated with epoxy resin using vacuum bagging or autoclave curing.
3. Curing: High-pressure, high-temperature curing ensures uniform density and a void-free surface.
4. Trimming and Polishing: Sheets are precision-cut and surface-finished for consistent thickness and edge quality.

Applications

• Industrial and robotic machine panels
• Aerospace and automotive parts (flat covers, supports, brackets)
• Sporting goods and RC model structures
• Marine components and drone chassis
• Decorative carbon fiber plates and consumer product covers
• Replacement for aluminum or steel in lightweight assemblies

Advantages Over Twill Weave

• Tighter Structure: Better fiber alignment and dimensional stability.
• Less Distortion During Machining: Reduced fraying and edge lifting when cut or drilled.
• More Uniform Surface: Suitable for structural and precision applications.
• Slightly Higher Impact Resistance: The interlaced weave distributes stress evenly.

Carbon Fiber Sheet Plate Specification: