PLA follows a standard cycle of "drying-plasticizing-injection-cooling-demolding" in the injection molding process, but each step has specific process window requirements. PLA is a thermoplastic material that combines environmental friendliness and biodegradability with excellent molding precision, making it particularly suitable for manufacturing disposable and short-life products that require high surface gloss and come into contact with food or medical materials. The core of its processing lies in strictly controlling the drying of raw materials and the melt temperature to overcome its high heat sensitivity, low melt strength, and slow crystallization rate, thereby obtaining high-quality parts with stable dimensions and no bubbles.