Overview of reciprocating single screw extruder PC sheet production line
DATE：2021/7/9 8:46:43 / READ： / SOURCE：This station
Overview of reciprocating single screw extruder PC sheet production line
Reciprocating single screw extruder has five functions: shearing, orientation, cutting, folding and stretching. The unique reciprocating single screw and multi tooth barrel design combines the advantages of single screw extruder and twin screw extruder. The product has great flexibility in application. The variable screw elements and pins make it widely used and suitable for modification granulation of various plastic products. Compared with other machines, the ratio of length to diameter is shorter, the residence time of melt in the barrel is shorter, and it is controllable, reducing the degradation of materials. Due to its high dispersion and uniform shear, the demand for pigments and additives is less and the energy consumption is lower on the premise of ensuring the performance of materials. The unique reciprocating motion of the system enables the materials to carry out the whole process of mixing, mixing, plasticizing, dispersing, homogenizing and degassing in one production. The excellent mixing ability provides excellent mixing and dispersing efficiency. The product quality is stable and the repeatability is good. Proper shearing, accurate temperature control and small aspect ratio ensure the materials to be processed gently. The vacuum device can completely remove the moisture in the product, the gas and some volatile gas produced in the process of processing, which is particularly important for semiconductor materials, conductive materials and cable materials. The product has accurate temperature control and small temperature difference. The real temperature of the melt is measured by the pin, the temperature curve is uniform, and the process parameters are stable and reliable. It is especially suitable for processing some heat sensitive materials and shear sensitive materials. The combination of split barrel and building block screw can be applied to many formulations and quickly change varieties without changing hardware; No dead angle, convenient disassembly and cleaning, quick, simple and safe maintenance of all parts, making the maintenance cycle very short, low maintenance cost, reliable and durable equipment. Because the cylinder pressure is very low, so the internal friction is very small, the equipment works smoothly and the noise is low. PC sheet production line www.handern.com
Reciprocating single screw mixing extruder is a new type of mixing and processing equipment for plastics. It is widely used in the production of filling, blending, reinforcing, crosslinking, grafting, color masterbatch, functional masterbatch, flame retardant masterbatch, conductive material, degradation masterbatch, etc. When preparing high concentration color masterbatch, the pigment and additives are directly measured, and the color masterbatch with good dispersing effect can be obtained without pretreatment. The amount of pigment is reduced, the production cost is reduced, and the production environment is improved. The production of various glass fiber reinforced products, glass fiber dosage up to 50%. It is especially suitable for the production of various cable sheathing materials, insulating materials, cross-linking materials, semiconductor materials, shielding materials, conductive materials, hard and soft PVC products and other heat sensitive materials, as well as the production of thermoplastic elastomer hot melt adhesive. The content of carbon black in black masterbatch produced by reciprocating single screw extruder is as high as 50%, and there is no special requirement for raw materials and no pretreatment. For example, the black masterbatch made of carbon black N330 can be used in the blown film without coupling agent, and the amount of polyethylene wax can be reduced, and the effect of uniform distribution can still be achieved. When the short glass fiber reinforced polyolefin is prepared, the glass fiber content can reach 50%, and the mixing effect is better than that of twin-screw (because the shear strength of twin-screw is larger and the average effective length of glass fiber is shorter). PC sheet production line www.handern.com
Reciprocating single screw mixing extruder is especially suitable for all kinds of filling modification. Because it is equipped with two forced feeding hoppers, a large number of fillers can be divided into two parts and added separately without premix. Moreover, it can avoid the torque increase and filling difficulty caused by a large number of fillers added together with the base material, so it can produce some products with large filling amount and difficult filling. The special screw structure and movement form can disperse it well. For example, when PE is filled with light calcium carbonate, the filling amount can reach 200%. When using reciprocating single screw extruder to produce inorganic flame retardant materials, the filling amount of magnesium hydroxide and aluminum hydroxide can reach 60% ~ 70%, and the flame retardant effect is excellent. PC sheet production line www.handern.com
With the help of the pin of the reciprocating single screw extruder, the real temperature of the melt can be measured, and the accurate temperature control can be achieved, which is also impossible for the twin screw extruder, which is extremely beneficial to the preparation of thermosetting composites. Therefore, the reciprocating single screw extruder creates a new process for the preparation of thermosetting composites, and accelerates the research, development and application of thermosetting resin composites. Reciprocating single screw extruder is also a kind of high-efficiency and energy-saving plastic extrusion mixing equipment. Compared with other extruders with the same output, it can save about 1 / 4 of energy. It is more and more widely used in the field of plastic modification and has made contributions to the development of plastic industry. PC sheet production line www.handern.com
Reciprocating single screw extruder has five functions: shearing, orientation, cutting, folding and stretching. The unique reciprocating single screw and multi tooth barrel design combines the advantages of single screw extruder and twin screw extruder. The product has great flexibility in application. The variable screw elements and pins make it widely used and suitable for modification granulation of various plastic products. Compared with other machines, the ratio of length to diameter is shorter, the residence time of melt in the barrel is shorter, and it is controllable, reducing the degradation of materials. Due to its high dispersion and uniform shear, the demand for pigments and additives is less and the energy consumption is lower on the premise of ensuring the performance of materials. The unique reciprocating motion of the system enables the materials to carry out the whole process of mixing, mixing, plasticizing, dispersing, homogenizing and degassing in one production. The excellent mixing ability provides excellent mixing and dispersing efficiency. The product quality is stable and the repeatability is good. Proper shearing, accurate temperature control and small aspect ratio ensure the materials to be processed gently. The vacuum device can completely remove the moisture in the product, the gas and some volatile gas produced in the process of processing, which is particularly important for semiconductor materials, conductive materials and cable materials. The product has accurate temperature control and small temperature difference. The real temperature of the melt is measured by the pin, the temperature curve is uniform, and the process parameters are stable and reliable. It is especially suitable for processing some heat sensitive materials and shear sensitive materials. The combination of split barrel and building block screw can be applied to many formulations and quickly change varieties without changing hardware; No dead angle, convenient disassembly and cleaning, quick, simple and safe maintenance of all parts, making the maintenance cycle very short, low maintenance cost, reliable and durable equipment. Because the cylinder pressure is very low, so the internal friction is very small, the equipment works smoothly and the noise is low. PC sheet production line www.handern.com
Reciprocating single screw mixing extruder is a new type of mixing and processing equipment for plastics. It is widely used in the production of filling, blending, reinforcing, crosslinking, grafting, color masterbatch, functional masterbatch, flame retardant masterbatch, conductive material, degradation masterbatch, etc. When preparing high concentration color masterbatch, the pigment and additives are directly measured, and the color masterbatch with good dispersing effect can be obtained without pretreatment. The amount of pigment is reduced, the production cost is reduced, and the production environment is improved. The production of various glass fiber reinforced products, glass fiber dosage up to 50%. It is especially suitable for the production of various cable sheathing materials, insulating materials, cross-linking materials, semiconductor materials, shielding materials, conductive materials, hard and soft PVC products and other heat sensitive materials, as well as the production of thermoplastic elastomer hot melt adhesive. The content of carbon black in black masterbatch produced by reciprocating single screw extruder is as high as 50%, and there is no special requirement for raw materials and no pretreatment. For example, the black masterbatch made of carbon black N330 can be used in the blown film without coupling agent, and the amount of polyethylene wax can be reduced, and the effect of uniform distribution can still be achieved. When the short glass fiber reinforced polyolefin is prepared, the glass fiber content can reach 50%, and the mixing effect is better than that of twin-screw (because the shear strength of twin-screw is larger and the average effective length of glass fiber is shorter). PC sheet production line www.handern.com
Reciprocating single screw mixing extruder is especially suitable for all kinds of filling modification. Because it is equipped with two forced feeding hoppers, a large number of fillers can be divided into two parts and added separately without premix. Moreover, it can avoid the torque increase and filling difficulty caused by a large number of fillers added together with the base material, so it can produce some products with large filling amount and difficult filling. The special screw structure and movement form can disperse it well. For example, when PE is filled with light calcium carbonate, the filling amount can reach 200%. When using reciprocating single screw extruder to produce inorganic flame retardant materials, the filling amount of magnesium hydroxide and aluminum hydroxide can reach 60% ~ 70%, and the flame retardant effect is excellent. PC sheet production line www.handern.com
With the help of the pin of the reciprocating single screw extruder, the real temperature of the melt can be measured, and the accurate temperature control can be achieved, which is also impossible for the twin screw extruder, which is extremely beneficial to the preparation of thermosetting composites. Therefore, the reciprocating single screw extruder creates a new process for the preparation of thermosetting composites, and accelerates the research, development and application of thermosetting resin composites. Reciprocating single screw extruder is also a kind of high-efficiency and energy-saving plastic extrusion mixing equipment. Compared with other extruders with the same output, it can save about 1 / 4 of energy. It is more and more widely used in the field of plastic modification and has made contributions to the development of plastic industry. PC sheet production line www.handern.com
Author：admin