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                                Jiangsu Hongyi Biochemical Technology Co., Ltd.
                            
    
                        
    
                    
    
                
    
                
      
                                                            
    • Categories:Engineering case
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    • Time of issue:2020-07-31 10:01
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    Jiangsu Hongyi Biochemical Technology Co., Ltd.
    
                                            
    Jiangsu Hongyi Biochemical Technology Co., Ltd.
    
                                        
    
                                    
    
                                
    
                                                                        
    
                    
                    
    
                        
                    
    
                    
    
                        
                    
    
                    
    
                
    
                
    
                    
    
                                                                                                                
    
                                    
    
                                        	 新聞
	                                    
    
                                
    
                                                                        
    
                    
                    
                
    
            
    
                        
    
                
                
    
                    
                                        
                                        
    
                        
    
                            
    
                                
                                Jiangsu Hongyi Biochemical Technology Co., Ltd.
                            
    
                        
    
                    
    
                
    
                
                
    
                    (Summary description)
                
    
                
      
                                                            
    • Categories:Engineering case
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    • Time of issue:2020-07-31 10:01
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	Jiangsu Hongyi Biochemical Technology Co., Ltd. is a booming biodegradation leader. So far, our company has successfully supplied the company's multiple biodegradable pelletizing extrusion production lines and sheet extrusion production line equipment to enter the Soviet Union for similar equipment. The North Market has laid a solid foundation.
    

    
                        
                        
    
                
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                    	 About the structure process analysis of twin screw extruder
	                
    
                
                
                
    
                    
                    
    About the structure process analysis of twin screw extruder
    
                    
                    
                    
    Next,theeditorofJuliwillgiveyouabriefintroductionaboutthestructureandprocessanalysisofthetwin-screwextruder:??1.Plasticizingarea??Theplasticizingzoneistoheattheinjectedresintoformamoltenstate.Theconditionssuchastheheatingtemperatureandtimeinthisregionarenotparticularlylimitedaslongasthefluoropolymerhavingaspecificunstableterminalgroupisinamoltenstate.Inthelatterhalfoftheplasticizationzone,itispreferabletoprovidedevolatilizationholestoremoveatleastapartofvolatilecomponentsundernormalpressureorreducedpressure.Then,thepartialpressureofvolatilecomponentsinthestabilizationregiondescribedlatercanbereduced,andthestabilizationtreatmentcanbeeffectivelypromoted.??2.Stabilizationtreatmentarea??ThestabilizationzoneistomeltandkneadandconvertspecificunstableendgroupsintoaCF2H.Thestabilizationtreatmentareaispreferablyformedbyusingakneadingdiscwithoutpropulsion.Here,melt-kneadingiscarriedoutinthepresenceofwaterandoxygen.Itcandirectlyintroducepurewater,ionexchangewater,etc.orwatervapor;itcanalsobeaccompaniedbythefluoropolymertobetreated.Theamountofwateraddedisthesameasthenumberofunstableterminalgroups,butitisactuallypreferabletosupplyanexcessamount,forexample,atleast10timestheamount.Thepressureinthestabilizationzoneisgenerallycontrolledat0.2～10MPa,andthesettemperatureiscontrolledat280～430℃.Thetimetomaintainpressurizationisusuallylessthan10minutes.??Accordingtotheprincipleoftheextrudertoremoveunstableendgroups,themelt-kneadinginthestabilizationzoneispreferablycarriedoutinthepresenceofoxygeninadditiontothepresenceofwater.Airisusuallyusedintermsofeconomy.Inthepresenceofoxygen,thecarbongeneratedbythemoltenkneadedproductisalsoburned,whichcaninhibitthecoloringofthefluoropolymer.Oxygenisaninertgastotheunstableterminalgroupscarboxylandfluorinatedacylgroups.Duringtheprocessofmeltingandkneading,itcanimprovethedevolatilizationefficiencyofvolatilecomponents.??Three,devolatilizationarea??Thedevolatilizationzoneremoveshigh-temperaturevolatilecomponentsgeneratedbythedecompositionofspecificunstableterminalgroups.Theabsolutepressurevariesaccordingtothemoltenstateofthemoltenkneadedproductandtheoperatingconditionsofthescrewofthekneader.Generally,thepressureisreducedtothepointwherethemoltenkneadedproductdoesnotintrudeintotheexhaustnozzle.Itcanbe0.01to0.1MPa,andthetemperatureiscontrolledat25O~Claughataround.??Inthepresenceofacertainamountofwaterandoxygen,FEPextrudingthroughatwin-screwextrudercaneffectivelyremovetheunstableterminalgroupsofFEP.SimplifiestheprocessingprocessofFEPunstableendgroupsandsavesproductioncosts.Whentheobtainedstabilizedpolymerismelt-formed,nobubblesorvoidsaregeneratedinthefinishedproduct,anditisnotcolored.?Formoreinformationabouttwinscrewextruders,pleasevisithttp://www.njjl.com/
    
                    
                    
                    
    
                        發布時間 : 2020-07-30
                        點擊 : 0 
                    
    
                    
                
    
                
                
        
    
                        
    
          
            
                
                
    
                    	 What are the technical parameters of a single screw extruder
	                
    
                
                
                
    
                    
                    
    What are the technical parameters of a single screw extruder
    
                    
                    
                    
    Next,theeditorofJuliwillgiveyouabriefintroductionaboutthetechnicalparametersofthesinglescrewextruder??1.Screwdiameter:referstothediameteroftheoutercircleofthescrew,representedbyD,andtheunitismillimeter(mm).2.Screwlength-to-diameterratio:referstotheratioofthelengthLoftheworkingpartofthescrew(thelengthofthethreadedpart,thatis,thelengthfromthecenterlineofthefeedingporttotheendofthescrew)andthescrewdiameterD,expressedbyL/D.3.Rangeofscrewrotationspeed:referstothemaximumrotationspeedofthescrewtotheminimumrotationspeedofthescrew;nrepresentsthescrewrotationspeed,andtheunitisrevolutionsperminute(r/min).HuahongAnswer4.Powerofthedrivingmotorofthemainscrew:ExpressedbyP,theunitiskilowatt(kW).5.Heatingpowerofextruderbarrel:ExpressedbyE,theunitiskilowatt(kV).6.Theproductioncapacityoftheextruder:expressedbyQ,theunitiskilogramperhour(kg/h).7.Theheightofthecenteroftheextruder:referstothedistancefromthecenterlineofthescrewtotheground,expressedbyH,andtheunitismillimeter(mm).8.Externaldimensionsoftheextruder:referstothetotallength×totalwidth×totalheight,expressedbyL×W×H,andtheunitismillimetersormeters(mmorm)9.Extruderquality:expressedbyW,theunitiskilogramorton(kgort)
    
                    
                    
                    
    
                        發布時間 : 2020-07-30
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                    	 Two more effective cleaning agents for starting the double screw extruder
	                
    
                
                
                
    
                    
                    
    Two more effective cleaning agents for starting the double screw extruder
    
                    
                    
                    
    Next,Iwillgiveyouabriefintroductiontotwomoreeffectivecleaningagentsforstartingthedoublescrewextruder:????1.Mixture:50%HDPE+50%diatomaceousearth????2.Mixture:HDPE+water+decontaminationpowder.TheHDPEisfedintothescrewattheusualspeedatthemeltingtemperature.Stirthedecontaminationpowderwithwaterinabuckettoformaslurry,andslowlyaddtheslurryfromthemainfeedport.Theseslurriesimpact,rub,andcleanthescrewduetofoaming.????Formoreinformationabouttwinscrewextruders,pleasevisithttp://www.njjl.com/
    
                    
                    
                    
    
                        發布時間 : 2020-07-30
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