01 Imigaqo yoomatshini
Indlela esisiseko ye-extrusion ilula-isikrufu sijikela kwisilinda kwaye sityhalele phambili iplastiki.I-screw yi-bevel okanye i-ramp ejikelezwe kumaleko asembindini.Injongo kukwandisa uxinzelelo ukuze ukoyise ukuchasana okukhulu.Kwimeko ye-extruder, kukho iintlobo ezi-3 zokuchasana ukoyisa: ukungqubuzana kweengqungquthela eziqinileyo (ukutya) kwindonga ye-cylinder kunye nokudibanisa phakathi kwabo xa i-screw ijika ukujika okumbalwa (indawo yokutya);ukunamathela kwi-melt kwindonga ye-cylinder;Ukuxhathisa kwenyibilika kulungiselelo lwalo lwangaphakathi xa lutyhalelwa phambili.
Uninzi lwezikrufu ezilodwa ziyimisonto esekunene, njengaleyo isetyenziswa ekwenzeni amaplanga kunye noomatshini.Ukuba zijongwe ngasemva, zijikela kwelinye icala kuba zenza konke okusemandleni ukujikeleza umphanda.Kwezinye ii-screw extruders ezimbini, izikrufu ezibini zijikeleza ngokuchaseneyo kwiisilinda ezimbini kwaye ziwela enye kwenye, ngoko ke enye kufuneka ijonge ekunene kwaye enye mayijonge ekhohlo.Kwezinye izikrufu zamawele ezilumayo, izikrufu ezibini zijikeleza kwicala elinye kwaye ke ngoko kufuneka zibe nokuqhelaniswa okufanayo.Noko ke, kuzo zombini ezi meko, kukho ii-thrust bearings ezitsala amandla abuya umva, yaye umgaqo kaNewton usasebenza.
02 Umgaqo weThermal
Iiplastiki ezikhutshwayo zi-thermoplastics-ziyanyibilika xa zishushu kwaye ziqina kwakhona xa zipholile.Buvela phi ubushushu beplastiki enyibilikayo?Ukufudumala kwesondlo kunye ne-cylinder / die heaters kunokusebenza kwaye kubalulekile ekuqaleni, kodwa amandla okufaka i-motor-ubushushu obukhukhulayo obuveliswa kwi-cylinder xa i-motor ijika isikrufu ngokuchasene nokumelana nokunyibilika kwe-viscous-ngowona mthombo ubalulekileyo wobushushu. kuzo zonke iiplastiki, ngaphandle kweenkqubo ezincinci, izikrufu ezinesantya esisezantsi, iiplastiki ezinyibilikayo zobushushu obuphezulu, kunye nezicelo zokugquma kwe-extrusion.
Kuyo yonke eminye imisebenzi, kubalulekile ukuqaphela ukuba isifudumezi sekhatriji ayingowona mthombo wobushushu osebenzayo kwaye ke ngoko sinesiphumo esincinci kwi-extrusion kunokuba sinokulindela.Ubushushu be-cylinder yangasemva busenokuba bubalulekile kuba buchaphazela umlinganiselo wokuthuthwa kwezinto eziqinileyo kwi-meshing okanye kwifidi.Iqondo lokushisa lokufa kunye nokungunda kufuneka libe liqondo lokushisa elifunekayo lokunyibilika okanye lisondele kuyo, ngaphandle kokuba zisetyenziselwa injongo ethile efana ne-varnishing, ukuhanjiswa kwamanzi, okanye ukulawula uxinzelelo.
03 Umgaqo wokunciphisa izinga
Kwii-extruders ezininzi, utshintsho kwisantya se-screw lufumaneka ngokulungelelanisa isantya semoto.Imoto idla ngokujika ngesantya esipheleleyo malunga ne-1750rpm, kodwa ikhawuleza kakhulu kwisikrufu esinye se-extruder.Ukuba ijikelezwe ngesantya esinjalo, ubushushu obuninzi kakhulu buveliswa, kwaye ixesha lokuhlala leplastiki lifutshane kakhulu ukulungiselela ukunyibilika okufanayo, okuxutywe kakuhle.Imilinganiselo yokunciphisa isantya iphakathi kwe-10:1 kunye ne-20:1.Inqanaba lokuqala linokuthi lilungelelaniswe okanye libe yi-pulley, kodwa inqanaba lesibini lilungiselelwe kwaye isikrufu sibekwe embindini wesixhobo esikhulu sokugqibela.
Kwabanye oomatshini abahamba ngokucothayo (njengezikrufu zamawele ze-UPVC), kusenokubakho izigaba ezi-3 zokunciphisa isantya kwaye isantya esiphezulu sinokuba ngaphantsi kwe-30 rpm okanye ngaphantsi (umlinganiselo ukuya kwi-60: 1).Kwelinye icala, ezinye izikrufu zamawele ezide kakhulu zokuvuselela zinokubaleka nge-600rpm okanye ngokukhawuleza, ngoko ke izinga lokuthoba elisezantsi liyafuneka kunye nokupholisa okunzulu okuninzi.
Ngamanye amaxesha izinga lokuhla lihambelana nomsebenzi-amandla amaninzi ashiywe engasetyenziswanga-kwaye kunokwenzeka ukongeza i-pulley iseti phakathi kwemoto kunye nenqanaba lokuqala lokunciphisa elitshintsha isantya esiphezulu.Oku mhlawumbi kwandisa isantya se-screw ngaphaya komda wangaphambili okanye ukunciphisa isantya esiphezulu, ukuvumela inkqubo ukuba isebenze kwipesenti enkulu yesantya esiphezulu.Oku kwandisa amandla akhoyo, kunciphisa i-amperage kwaye kuthintele iingxaki zeemoto.Kuzo zombini iimeko, isiphumo sinokunyuka ngokuxhomekeke kwizinto eziphathekayo kunye neemfuno zokupholisa.
Cinezela umnxeba:
Qing Hu
Langbo Machinery Co.,Ltd
No.99 Lefeng Road
215624 Leyu Idolophu Zhangjiagang Jiangsu
Umnxeba: +86 58578311
EMail: info@langbochina.com
Web: www.langbochina.com
Ixesha lokuposa: Jan-17-2023