This high quality extrusion Two-tone PC Lamp Cover is a kind of customized protective cover of lighting for Ultraviolet Disinfection.The material is frosted PC/polycarbonate resin.The main components is rigid PC raw material,toner and auxiliary.Excellent light diffusion combined with excellent light dispersion.It is a blue and transparent two-tone cover with shiny surface.It is produced by two color co-extrusion process.

The UV-Resistance,Flame Resistance,Environment Friendly and Heat-resisting is basicly requirements.

The main equipment includes main machine and auxiliary machine. The main machine is twin-screw extruder, and the screws rotate outwards in different directions. Auxiliary machines involve cooling and shaping devices, traction devices, sawing devices, and stacking devices. The extrusion molding of the PVC profile is to use the screw rotation pressure method to continuously extrude the plasticized molding material from the extrusion barrel into the machine head, and the molten material is formed into a parison similar in shape to the die through the die of the die. The molded product is continuously pulled out from the mold by a pulling device, and at the same time cooled and shaped to obtain a product of the desired shape. In order to obtain extrusion PVC profile products with excellent appearance and internal quality, it is necessary to control the extrusion process conditions. The control points are mainly mixing materials, molding temperature, screw cooling and speed, extrusion pressure, cooling and setting, etc.

The product is selected to be a twin-screw extruder with an exhaust device that rotates outwards in different directions. After preheating and feeding, the extruder will uniformly plasticize the material to form a melt through the process of conveying, exhausting, melting, etc. After reaching the head, it will be further homogenized and compacted into a dense parison by the pressure of the head. It is formed continuously through the die in a flowing state. Extrusion molding temperature is a necessary condition to promote the plasticization and melt flow of molding materials, and it has a very important influence on the plasticization of materials, the quality and output of extrusion PVC profile products in the extrusion molding process. The temperature of the barrel and the die is the focus of control, because the processing temperature of PVC profile is quite close to the decomposition temperature, so it must be strictly controlled.

Due to the high viscosity of PVC melt, excessive heat generated by friction will cause the screw adhesive to decompose, making the inner wall of PVC profiles rough, so the screw cooling is used to reduce the friction heat between the PVC melt and the surface of the screw, but the cooling temperature should be controlled at 70 -90°C, if the cooling temperature is too low, it will reduce the extrusion volume and affect the plasticization quality of the PVC profile, which is not conducive to the quality of PVC profile products. Traction plasticization directly affects the wall thickness, dimensional tolerance, performance and appearance of extruded PVC profile products. Therefore, it is required that the traction speed must be stable, and the traction plasticization should match the extrusion speed of the PVC profile. During normal production, the traction speed should be slightly faster than the extrusion speed, so as to overcome the die expansion of the extruded PVC profile.

The production process is an important factor affecting the quality of plastic PVC profile extrusion products. To ensure the quality of PVC profile products, the key is to strictly control the mixing and extrusion production processes, and strictly monitor and regularly monitor the process parameters during the extrusion process. Grasp the surface, shape quality and various physical and mechanical properties of PVC profiled materials in time, carry out necessary control and adjustment, constantly analyze the quality status, and improve the level of process control.

According to the performance, PVC profile extrusion can be divided into two types: hard and soft. The extrusion of hard PVC profiles is mostly used in construction, such as making PVC profile doors and windows, PVC floors, PVC pipes and other products; while the extruded soft PVC profiles is mostly used in the production of PVC hoses, power transmission cables, etc. And it also adds functional additives. Such PVC profile extrusion has the advantages of anti-aging, anti-ultraviolet, corrosion resistance, high strength, low price, good heat preservation and heat insulation performance, etc. It can partially replace aluminum PVC profile, steel materials, etc. material, and the pollution it produces is lower than that of aluminum PVC profile

Requirements for equipment in PVC profile production process

1. Extruder: The extruder is the core equipment of the PVC profile production process. It is mainly used to melt and mix the raw materials of the profile, and then extrude the softened materials into profiles of different shapes. Generally, an extruder with a screw diameter of Φ65-Φ150mm, a length-diameter ratio of 28-30:1, a motor power of 18.5-75kw, and a maximum output of 350-400kg/h is selected.

2. Mold: The mold is the key equipment in the PVC profile production process. It is mainly used to shape the extruded PVC profile. The mold is usually made of special heat-resistant steel and is designed according to the specific requirements of the profile.

3. Vacuum calibrating table: The vacuum calibrating table is an important ancillary equipment in the PVC profile production process. It is mainly used to cool and solidify the PVC profile, and then calibrate the profile to the design size. The vacuum calibrating table is generally composed of a vacuum pump, a cooling system and a calibrating system.

4. Haul-off: The haul-off is an auxiliary equipment for the PVC profile production process, which is mainly used to continuously haul off the cooled and solidified profiles from the vacuum calibrating table. Generally, a double-claw haul-off is used, and the traction speed can be adjusted steplessly.

5. Cutting saw: The cutting saw is used to cut the PVC profile to the required length. Generally, a saw blade with a diameter of Φ400-Φ600mm and a power of 5.5-7.5kw is selected.

6. Stacker: The stacker is an ancillary equipment used to stack the cut profiles. The stacking speed is adjustable, and the stacking speed is generally set to 2-3m/min.

EXTRUSION YBQ AS ONE OF THE LEADING PLASTIC EXTRUSION MANUFACTURER IN CHINA

As one of the leading plastic extrusion manufacturer in China,we insist on setting long-business partnership with our customers.Besides providing stable high quality products.,offering the more competitive price and satisfactory service, we believe a reliable Win-win business relationship is the key point of cooperation.

EXTRUSION YBQ FOCUS ON PVC EXTRUDED BUILDING MATERIALS

PVC Foamed Extrusions,SPC Foam Board,PC LED Lamp Shade and others Extrusions.Mainly use materials PVC、PC、PP、ABS、HIPS、TPU、TPV、TPE、TPR、NBR、PSU、PEEK、EPDM、Silicone、PA etc.Our mission is to provide custom plastic extrusion researching and developing, manufacturing and the highest level of customer service.Molding tools designing and developing one-stop solutions as well.we sell all over the country and export to United States, North America, Europe, Asia, South America, Africa and other regions.

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Tags:  PVC EXTRUSION,PVC FOAMED EXTRUSION, PC EXTRUSION, ABS EXTRUSION, PP EXTRUSION

1. Drawing software:Customer provide the 2D drawing or 3D data in DXF, DWG, PRT, SAT, IGES, STP format etc, or just send us the sample.(PVC profile)

2. Prototype design and production assembly. (PVC profile)

3. Material:POM, AS,ABS,PS,PP,PVC,PBT,PE,PMMA,PA etc. (PVC profile)

4. Mould Cavity: Single or multi-cavities.based on customer' s requirement. (PVC profile)

5. Mould date:10-25days. (PVC profile)

6. Sample confirm: We will send trial sample to customers before shipment,If the sample isn’t satisfied by customers.We will modify mould until customers satisfaction. (PVC profile)

1. UV Resistance; (PVC profile)

2. Environmental Friendly; (PVC profile)

3. Strong toughness; (PVC profile)

4. Lighter Weight.(PVC profile) 

5.Low plastic extrusion costs (PVC profile)

6.Extruded profiles for a wide range of applications (PVC profile)