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Development of China's plastic machinery
China's plastic machinery industry began in the late 1950s. As China's petrochemical industry developed, the plastic machinery sector gradually evolved into an independent industrial segment. Over time, it gained momentum and became a significant part of the manufacturing landscape. Today, China is the world's largest producer of plastic machine parts, with companies like Ningbo Haitian leading the global market as the top manufacturer of injection molding machines.
In recent years, the industry has experienced rapid growth. The number of plastic machinery manufacturers across the country has exceeded 1,000, with around 400 firms having a notable scale and strength. Since the Tenth Five-Year Plan, the industry has seen significant progress, expanding its industrial scale and achieving consistent growth in key economic indicators for eight consecutive years. It ranks among the top industries within the broader machinery sector in terms of development speed and performance.
The promising future of the plastics processing industry continues to drive the fast-paced growth of China’s plastic machinery manufacturing. It is projected that the demand for plastic machinery will grow at an average annual rate of about 6%, reaching approximately 14.5 billion yuan by 2010. This indicates substantial development potential and strong long-term growth prospects. Particularly, high-tech models such as large-scale, precision, and specialized injection molding machines, low-temperature and high-power extruders for producing heat-resistant packaging materials, multi-layer co-extrusion blow molding machines, and equipment used for manufacturing industrial components like auto parts are expected to have strong market demand.
When it comes to materials used in plastic machinery, there are several key components. For example, extruder barrels are typically made from 48-gauge steel, which is cost-effective but less wear-resistant. On the other hand, No. 38 Luogang aluminum is an alloy that offers better thermal conductivity. Additionally, traction equipment and steel bar molds often require electroplating to enhance their hardness and durability. These material choices play a crucial role in determining the performance and longevity of the machinery.