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Plastic injection molding has transformed from a basic celluloid press into a smart manufacturing process powered by AI and sustainability. This article explores how the technology evolved and why it’s vital to modern industry.

1. The Origins of Injection Molding
Injection molding began in 1872, when John Wesley Hyatt and Isaiah Hyatt patented the first injection machine using celluloid to create billiard balls, replacing ivory. Though primitive, this invention started the plastic revolution and led to today’s advanced processes.

2. Growth in the Early 20th Century
The invention of Bakelite by Leo Baekeland in 1907 was a turning point, offering heat-resistant and electrically insulating plastic. By the 1920s–1930s, materials like polystyrene and nylon broadened injection molding’s role in consumer and industrial applications.

3. Modern Machinery Emerges (1940–1970)
World War II accelerated demand for durable plastic parts. In 1946, James Watson Hendry developed the screw-type injection molding machine, improving control over melt flow and temperature.
From the 1950s–1970s, new engineering plastics such as PC, PP, and PET enabled stronger, heat-resistant components and expanded plastic’s role in manufacturing.

4. Automation and Intelligence (1980–Present)
The 1980s saw the rise of CNC and automation, enhancing speed and accuracy. By the 1990s–2000s, multi-material molding, 2K, and overmolding allowed combining different resins in a single part—offering complex functionality in fewer steps.
Today, Injection Molding 4.0 incorporates AI, IoT, and 3D printing for real-time optimization, traceability, and significant reduction in cycle times and waste.

5. The Future of Injection Molding
The process is evolving toward greener, smarter manufacturing:
* Use of bioplastics and recycled resins
* Smart systems with real-time process control
* Design strategies that minimize material usage and waste

Why Choose Hakkai Precision Thailand?
Hakkai Precision Thailand is a trusted expert in precision injection molding. We offer end-to-end service—from mold design to high-performance part production—backed by modern automation and strict quality control.
✅ Automated machines reduce waste and cost
✅ Engineering-grade materials for every industry
✅ Custom mold development tailored to your application

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