高速护坡模具采用的双色共挤技术是一种塑料型材的挤出加工方式。 双色共挤(双色共挤塑料型材)就是把两种不同颜色的材料(材质可以不同)通过不同流道输送给挤出设备, 加工出来的一种具有两种不同颜色的产品。双色共挤塑料型材具有两种不同颜色或材质,兼具两种材料的共同优点。双色共挤塑料型材在建筑装饰中在满足色彩和性能需求的同时还可以有效节省成本。
The dual color co extrusion technology used in the high-speed slope protection mold is a plastic profile extrusion processing method. Dual color co extrusion (dual color co extruded plastic profiles) is a product produced by conveying two different colored materials (materials can be different) through different channels to the extrusion equipment, resulting in two different colors. Two color co extruded plastic profiles have two different colors or materials, combining the common advantages of both materials. Double color co extruded plastic profiles can effectively save costs in architectural decoration while meeting color and performance requirements.
PE挤出型材生产线选用专用HDPE、PP管材的高效挤出机,螺杆采用带屏障和混炼头结构,机筒采用新型开槽机筒,塑化和混炼效果好,PE挤出型材的挤出量大而且非常稳定。PE挤出型材的生产线为HDPE、PP大口径厚壁管材设计的螺旋式模头,该模头具有熔体温度低,混合性能好,模腔压力低,PE挤出型材生产稳定的特点。
The PE extrusion profile production line uses high-efficiency extruders with dedicated HDPE and PP pipes, and the screw adopts a structure with a barrier and mixing head. The machine barrel adopts a new type of slotted machine barrel, which has good plasticization and mixing effects. The extrusion volume of PE extrusion profiles is large and very stable. The production line of PE extruded profiles is designed with spiral die heads for HDPE and PP large-diameter thick walled pipes. This die head has the characteristics of low melt temperature, good mixing performance, low mold cavity pressure, and stable production of PE extruded profiles.
1995年开始,一批有实力的企业,开始消化吸收国外高速护坡模具的技术精华,研制出自己的门窗系列,成为国内塑料门窗的主导,推动门窗的技术更新和发展,也使整个行业得到了空前的发展和高速增长。高速护坡模具行业进入产品成熟期后,也即从2003年起,许多弊端开始反应出来,过高的利润率导致盲目投资过多,使行业综合产能近300万吨,远高于市场需求。很多新进入高速护坡模具行业的投资者没有从产品创新、技术创新入手,而是简单模仿,甚至偷工减料,假冒伪劣,行业市场竞争处于非健康状态。高速护坡模具原料市场价格不断上扬,加剧这种非健康的竞争,使部分企业经营处于困境,出现停产或半停产状态。
Since 1995, a group of powerful enterprises have begun to digest and absorb the essence of foreign high-speed slope protection mold technology, and developed their own door and window series, which has become the leading role of domestic plastic doors and windows, promoting the technical update and development of doors and windows, and also making the entire industry get unprecedented development and rapid growth. After the high-speed slope protection mold industry entered the product maturity period, which began in 2003, many drawbacks began to be reflected. The high profit margin led to blind investment, resulting in a comprehensive production capacity of nearly 3 million tons, far exceeding market demand. Many investors who have recently entered the high-speed slope protection mold industry have not started with product and technological innovation, but have simply imitated, even cut corners, counterfeit and inferior products. The industry market competition is in a non healthy state. The market price of raw materials for high-speed slope protection molds continues to rise, intensifying this unhealthy competition and putting some enterprises in a difficult situation, resulting in production stoppages or semi stoppages.