近年來，隨著我國城鎮化進程的快速發展，復合井蓋的需求越來越大，無論是城市規劃，還是公路建設，都需要大量使用強度高、性能好的優質復合井蓋產品，所以，樹脂復合井蓋等復合材料復合井蓋逐漸取代了傳統的鑄鐵復合井蓋和水泥復合井蓋，成為復合井蓋產品的主流。

那么，作為專業的復合井蓋生產廠家，應該怎樣選擇復合井蓋模具呢?選擇復合井蓋模具的關鍵是看模具的制造材質，具體來說，對于尺寸和形狀穩定、產量較大的產品，應該使用高性能的制造材料。而對于形狀多變、制作周期長、要求精度較高的產品，因為其模具的加工費大大高于模具的成本費用，所以也應該選用高強度的材料。對于形狀簡單、承受應力小、制造難度小的復合井蓋產品，就應該采用改形的模具，這種模具通常使用鑄鐵、鋼或非金屬材料制造。

n recent years, with the rapid development of China's urbanization, growing demand for composite covers, whether it is urban planning, or road construction, require extensive use of high-strength, high-performance composite covers a good product, so resin composite composite manhole covers and other composite materials gradually replaced the traditional cast iron manhole covers and cement composite covers composite, composite covers mainstream products.

The key, then, as a professional manufacturer of composite covers, how to select composite covers mold it? Choice is to look at the composite covers mold mold manufacturing material, specifically, the size and shape stability, yield larger product, you should use a high manufacture of material properties. As for changing the shape of a long production cycle, requiring high precision products, because of its mold processing fee is much higher than the cost of the mold, so it should use high-strength materials. For simple shape to withstand stress, difficulty composite covers the manufacture of small products, should be used to change shape of the mold, this mold typically use cast iron, steel or non-metallic materials.