Вакуумное литье

Overview

Вакуумный casting (also called urethane casting or silicone molding) is the ideal solution for producing 10-500 high-quality plastic parts without expensive injection molds. Using silicone molds created from 3D printed or CNC machined masters, we produce parts with properties nearly identical to injection molded components.

Perfect for bridge production, market testing, trade shows, and low-volume manufacturing. Choose from 100+ polyurethane materials that mimic ABS, PP, PC, PMMA, TPE, and other engineering plastics.

Вакуумный Литье Возможности

🔧 Вакуумный Литье Process

Step 1: Master Pattern Creation (2-3 Days)

A high-quality master pattern is created via SLA 3D printing or CNC machining. This master defines the final part geometry and surface finish. Surface quality is critical as it transfers to all cast parts.

Step 2: Silicone Пресс-форма Making (2-3 Days)

The master pattern is placed in a box and liquid silicone rubber is poured around it. After curing, the silicone mold is cut open and the master is removed. Multi-cavity molds can be created for higher volumes.

Step 3: Материал Выбор (Same Day)

Choose from 100+ polyurethane materials that mimic various thermoplastics. Материалs range from rigid (ABS-like) to flexible (TPE-like), transparent (PMMA-like) to opaque, and standard to high-temperature grades.

Step 4: Вакуумный Литье (1-2 Days)

Polyurethane resin is mixed, degassed under vacuum, and poured into the silicone mold. The mold is placed in a vacuum chamber to eliminate air bubbles, then cured in an oven at 60-80°C.

Step 5: Demolding & Post-Processing (1-2 Days)

Детали are removed from the silicone mold, gates are trimmed, and any necessary post-processing (sanding, painting, assembly) is completed.

Step 6: Качество Inspection & Shipping (1 Day)

Final parts are inspected for dimensional accuracy and cosmetic quality. Inspection report included. Детали shipped via express courier.

📦 Материал Выбор

Rigid Материалs (ABS-like)

• PU 8400: General purpose, good balance of properties
• PU 8410: Higher impact strength, snap-fit applications
• PU 8420: Higher heat resistance (up to 80°C)

Flexible Материалs (TPE/TPU-like)

• PU 9400: Shore A 80, general flexible applications
• PU 9410: Shore A 60, softer grip applications
• PU 9420: Shore A 90, higher wear resistance

Transparent Материалs (PMMA/PC-like)

• PU 5400: Crystal clear, optical applications
• PU 5410: UV resistant, outdoor applications

High-Temperature Материалs

• PU 8800: Heat resistant up to 120°C
• PU 8810: Glass-filled, higher stiffness

🎯 Применение

🔍 Качество Control

• First Article Inspection: Complete dimensional report on first parts
• Visual Inspection: Check for bubbles, inclusions, surface defects
• Hardness Testing: Shore A/D verification for flexible/rigid materials
• Color Matching: Spectrophotometer verification for color-critical parts
• Functional Testing: Assembly fit, performance testing as required

💰 Cost Comparison