在塑料成形製程中，硬化和表面處理是非常重要的步驟。透過硬化處理，塑料成品可以變得更堅固耐用，增加其使用壽命。當塑料品項需求更高的強度和耐磨性時，硬化是不可或缺的工序。
在塑料成形完成後，表面處理則是必須進行的步驟之一。表面處理可以讓塑料成品外觀更具美感，同時也能提高其抗腐蝕和耐磨性能。利用砂輪、打磨和電鍍等技術，可以使塑料表面變得更光滑、均勻，達到理想的效果。
除了硬化和表面處理外，塑料成形製程還涉及其他工藝，如冷熔接、鍛造和鑲嵌等。透過這些工藝的結合，製造出的塑料成品可以擁有更高的品質和性能。
In the plastic molding process, hardening and surface treatment are crucial steps. Through hardening treatment, plastic products can become stronger and more durable, increasing their lifespan. When plastic items require higher strength and wear resistance, hardening is an essential process.
After the plastic molding is completed, surface treatment is a necessary step. Surface treatment can improve the appearance of plastic products, while also enhancing their corrosion resistance and wear resistance. Techniques such as grinding, polishing, and electroplating can make the plastic surface smoother and more uniform, achieving the desired effect.
In addition to hardening and surface treatment, the plastic molding process also involves other techniques such as cold fusion bonding, forging, and inlaying. By combining these techniques, the manufactured plastic products can have higher quality and performance.
（本文章僅就題目要求進行撰寫，不代表任何觀點或意見）
