HDPE pipe is widely used in the field of water supply because of its high strength, corrosion resistance and non-toxicity. It also overcomes the shortcomings of galvanized pipes, iron pipes, rust, bacteria growth and short life. Qingdao Kechuang Plastic Machinery Co., Ltd. focuses on the production of HDPE silicon core tube production line, and has accumulated many years of inspection and accumulation of HDPE silicon core tube production. The production process is as follows:
I. Process Pipe Extrusion Machine-Silk Core Layer Lining Extrusion-Color Line Extrusion-Combined Machine Head Forming-Vacuum Sizing Cooling-Cooling Water Tank-Printing-Tractor-Cutting Machine-Rolling Machine Operation Procedure as follows:
1. Ingredients, silicon core tube special materials, color masterbatch, and silicon core layer masterbatch according to the process requirements. Stir well with a blender and configure the materials used in the pipe.
2, the raw materials, after the temperature set by the extruder is heated, three layers of co-extrusion, vacuum sizing, spray cooling, printing traction, and then close, 2000m roll.
3. Inspect the appearance of the pipe, the wall thickness, the inner and outer diameters, and confirm the pass, and put it into the warehouse.
Second, the production of silicon core tube requires three consecutive household registrations to co-extrude, so the speed and processing temperature of each silicon core extruder must be matched. The length of each silicon core tube is 2000m, which requires good stability of the equipment. The cooling system and auxiliary equipment should be matched with the extruder to ensure the quality of the product and reduce the generation of waste.
Here's how to identify the quality of HDPE silicon core tubes:
1. Look at the appearance: High-quality pipe: The inner and outer walls of the pipe are smooth and smooth, without bubbles. Inferior pipes: The inner and outer surfaces of the pipe are not flat and have pitting. Large wall thickness deviation
2, milling strip: high quality tube: oil bright and flat, repeated folding is not easy to break inferior tube: color is dim, easy to break
3, welding mouth: high quality pipe: the flanging is smooth and flat. After the joint is pressurized, the flanging is longer. Inferior tubes: a large number of pores are generated on the surface after the flanging, and the flanging is short.
4, the sense of smell, high-quality tube: just after processing the latter, after heating and melting, there is a light plastic fragrance. Inferior tube: pungent smell
5, tensile elongation rate of high quality pipe: stretched to 3.5 times without breaking, good tensile properties. Inferior tube: elongated and easy to break, very poor toughness