Kuyerwa kwe polymer melt viscosity kunosarudza extrusion uye molding process. Kutarisa viscosity panguva chaiyo kwakakosha kupfuura kutarisa tembiricha nekumanikidzwa.
Overviewof ExtrusionMoldingPrbasa
Kugadzira zvinhu kubva muzvinhu zvakambogadzirwa (extrusion molding) inzira inoshanda mukugadzira zvinhu mumaindasitiri akasiyana-siyana ekugadzira zvinhu zvakaita semapaipi, mafirimu, machira, nezvimwewo. Izvi zvinoita kuti pave nekugadzirwa kwezvinhu zvakaoma zvine hunhu hwakafanana ukuwo zvichivimbisa kukurumidza kugadzirwa uye kushanda zvakanaka kwezvinhu. Kufambira mberi kuri pachena kwakaita sekushanda kwemaitiro otomatiki, kutarisa zvinhu panguva chaiyo uye kutarisa mashandiro ekushandisa zvinhu zvakagadziriswazve kwakavandudza kunyatsoshanda uye kuderedza kukanganisa kwezvakatipoteredza kuburikidza nekuderedza marara.
Rough Idea yeZvimwerusisipaMachine
Muchina wekubvisa zvinhu une zvikamu zvinotevera: hopper, feeding screw, heating elements uye gear pombi. Zvinhu zvinoiswa mumuchina pahopper. Feeding screw inotenderera nguva dzose, inofambiswa nemota negearbox, inofambisa zvinhu pamwe chete nebarrel uye nepadier. Heating elements iri pabarrel inochengetedza tembiricha inodzorwa kuti ipfave nekunyungudutsa polymer element. Mushure mekubuda mudier, simbi yakanyungudutswa inopinda muforoma ine imwe kana kupfuura, uko inotonhorera uye inosimba kuita chimiro chaunoda. Mune mamwe masisitimu, gear pombi inoiswa pakati pebarrel nedier kuti ive nechokwadi chekuti zvinhu zvinobuda zvinomanikidzwa nguva dzose.
Zvinhu Zvikuru Zvinoyera Kupenya Kwekupenya Pamuchina Wekuburitsa
Kubuda kweHopper / Nzvimbo Yekudya: Inoyera kunyunguduka kwekutanga kwemvura sezvo polymer inotanga kupfava.
Nzvimbo Yekunyunguduka (Mid-Barrel): Inobata shanduko kuenda kumamiriro akanyungudutswa zvizere.
Nzvimbo yekuyera(Pamberi peGiya Pombi kana Die): Inoyera kuyerwa kwe polymer melt viscosity pasi pemazinga ekuchekwa kwesimbi.
Mukova wekufa: Inopa data rekunyunguduka kwemvura panguva chaiyo panguva yekubuda kwechinhu.
Kunzwisisa Kunyunguduka kwePolymer uye Kusviba
Chii chinonzi polymer melt?
Ipolymer inodziya kusvika yanyunguduka, ichiratidza hunhu hwekuyerera kwemvura hunoita kuti iumbwe kuburikidza nekubuda kana kuumbwa.kunyungudutsa viscosity yemapolymers—kuramba kuyerera kwemvura—zvinoenderana nehuremu hwemamorekuru, tembiricha, mwero wekuchekwa kwemvura, uye zvinowedzerwa, zvichikanganisa simba uye kupera kwechigadzirwa chekupedzisira.maitiro ekuwedzera polymer, uko polymer yakanyungudutswa inoburitswa kuburikidza nedhizi, uye mujekiseni rekugadzira, uko inozadza maforoma pasi pekumanikidzwa, ichichengetedza zvakakwanakunyungudutsa viscosityzvakakosha. Chinyakarekuyerwa kwekunyungudika kwepolymernzira dzekurapa, dzakadai se rheometry ye capillary iri kunze kwe-line, dzinowanzo nonoka nekuda kwekunonoka, zvichiita kuti chinjo iende kumukativiscometer yemapolymerskuti uwane ruzivo rwechokwadi.
Matambudziko muPolymer Extrusion uye Process Control
Iyomaitiro ekuwedzera polymeruye kugadzira jekiseni zvinosangana nematambudziko makuru mukuchengetedza nguva dzosekunyungudutsa viscosityKuchinja-chinja kunokonzerwa nekupisa uye kuchinja-chinja kwehuwandu hwekupisa kunogona kukonzera kusaenzanakunyungudutsa viscosity yemapolymers, zvichikonzera zvikanganiso zvakaita sekusarongeka kwepamusoro kana kuti maburi ari muma profiles akaburitswa. Mitsetse mikuru inotadza kuenderana neyunifomukuyerwa kwekunyungudika kwepolymerkuyerera kwese, zvichichengetedza kutevedzera mitemo. Mukugadzira majekiseni nekukurumidza, kugadziriswa nemaoko hakuenderane nenguva dzinokurumidza dzekufamba, zvichikonzera njodzi yekudonha kwemvura kana kuzadza kusina kukwana. Matambudziko aya anoratidza kudiwa kwemhando yepamusoro.polymer viscometermasisitimu, akadai seviscometer yepolymer otomatiki, kupa ruzivo rwepanguva chaiyo uye kukunda zvipingamupinyi zvenzira dzechinyakare.
Nei Kunyungudutsa Kutarisa Kusviba Kunokosha?
Kuyerwa kwe viscosity yekunyunguduka kwakakosha mukuita kwe polymer extrusion uye jekiseni rekugadzira nekuda kwezvikonzero zvakasiyana-siyana. Mu extrusion, viscosity yekunyunguduka inogara ichionekwa kuti inozadza kufa kwakafanana uye inodzivirira zvikanganiso zvakaita sekusarongeka kwepamusoro kana kuzvimba kwe die. Mu injection molding, inokanganisa kuzadza mold, mhando yechikamu, uye nguva yekutenderera, uko kusiyana kunogona kutungamira pakudonha kana kuzadza kusina kukwana. Kutarisa kwenguva chaiyo kunobvumira vashandi kugadzirisa tembiricha, kumanikidzwa, kana kuumbwa kwezvinhu nguva nenguva, zvichivandudza mashandisirwo esimba uye kuderedza marara—zvinhu zvikuru sezvo mitemo yekabhoni ichinyanya kusimba muna 2025.
Kuoma kwekuyera polymer melt viscosity kunobva pahunhu husiri hweNewtonian hwepolymer melts, uko viscosity inosiyana zvichienderana ne shear rate uye nhoroondo yekupisa. Masisitimu e inline polymer-melt viscometer systems anotarisa izvi nekupa data rinoenderera mberi, zvichigonesa kudzora maitiro ayo nzira dzisina kuenderana.
Unyanzvi hwaLonnmeter muKutarisa Kunyunguduka kweMamiriro ekunze
Neruzivo rwemakore anopfuura gumi,Lonnmeter, mutungamirimutengesi we polymer viscometer, yazvisimbisa senzira yekutanga mukutarisa kusimba kwemuviriUnyanzvi hwavo hunosanganisira mitsetse yekuburitsa zvinhu ine simba guru uye tembiricha yepamusoro uye nzvimbo dzekuumba majekiseni, zvichigadzirisa zvinodiwa nemapolymer akasiyana-siyana akadai sepolyethylene, polypropylene, uye PET.
Mhinduro dzeZvigadzirwa
Lonnmeter ine hunyanzvi hwepamusoropolymer inonyungudutsa viscometermhinduro dzakagadzirirwakuongorora kunyunguduka kwe viscosity. IyoViscometer iri mukatiyakagadzirirwa kuiswa kwakatwasuka kana kwakafanana mumichina yekuwedzera, ichiyerakunyungudutsa viscositykusvika ku100,000 cP·s uye tembiricha inosvika 300°C, isingakanganiswi nekusiyana kwekuyerera kwemvura.
Kugadzirisa zvinhu ndicho chiratidzo chezvinhu zvinopihwa neLonnmeter, nesarudzo dzekubatanidza zvine tambo kana kuti flanged uye data rinobuda kuburikidza ne4-20mA kana RS485, zvichibatanidzwa zvakanaka nemasisitimu e automation. Mu extrusion, kugadzika kwacho kunovimbisa kusakanganiswa kwekufamba kwemvura.
Mabhenefiti eLonnmeter's Melt Viscosity Solutions
Kuvimbisa Hunhu Hwakanaka:Nguva chaiyokuyerwa kwekunyungudika kwepolymerinovimbisa kuti zvinhu zvinobuda zvisina mhosva uye zvikamu zvakaumbwa hazvina mhosva.
Kushanda Nemutengo Wakanaka:Kuderedza marara nekugadzirisa zvinoderedza mari yekushandisa.
Kuchengetedza Simba:Kugadzirisa kwakanyatsonaka kunoita kuti kushandiswa kwesimba kuwedzere kunaka.
Kuchinjika Kwemaitiro:Kuenderana nemapolymer akasiyana-siyana kunotsigira zvinodiwa zvakasiyana-siyana zvekugadzira.
Kuchengetedzwa Kwakawedzerwa:Kuonekwa kwezvisina kunaka zvekunamira kwemuviri kunodzivirira kukanganiswa kwemidziyo.
Mibvunzo Inowanzo bvunzwa
Sei kunyunguduka kwemvura kuchikosha kupfuura tembiricha kana kumanikidzwa?
Kunyungudika kwekunyungudika kunokanganisa zvakananga kuyerera kwekunyungudika, kufa kwakazara, uye kugara kwenguva refu kwechigadzirwa, zvichiwanzopfuura simba rekupisa kana kumanikidzwa. Kuyerwa kwakakodzera kwe polymer melt viscosity kunodzivirira zvikanganiso zvakaita se warpage kana kufa kwemvura, zvichiita kuti zvive zvakakosha pakudzora maitiro.
Ko Lonnmeter inoita sei kuti data risanganisirwe?
Viscometer yepolymer otomatiki inobatanidza kuburikidza ne4-20mA kana RS485 protocols, ichipa data renguva chaiyo kumasystem ekudzora. Nhoroondo yayo iri mubhodhi, inowanikwa kuburikidza nesoftware, inopa ruzivo rwenhoroondo, ichipfuura miganhu yepolymer yeviscometer yechinyakare.
Ndezvipi zvinhu zvinopesvedzera kunyungudika kwepolymers?
Kunyungudika kwemapolymer kunokonzereswa nehuremu hwemamorekuru, tembiricha, mwero wekuchekwa kwechinhu, uye kuvapo kwezvinowedzera kana zvinozadza. Huremu hwakawanda hwemamorekuru uye tembiricha yakaderera zvinowanzo wedzera kusimba, zvichikanganisa maitiro ekubvisa mapolymer.
Kutarisa kunyunguduka kwemvura (melt viscosity monitoring) ndicho chinhu chikuru mukugadzirwa kwepolymer extrusion uye jekiseni, zvichivimbisa kuti mhando uye kushanda zvakanaka. Nehunyanzvi hwaLonnmeter hwakaratidzwa uye viscometer yepamusoro yemapolymers, vagadziri vanogona kukunda matambudziko mukudzora maitiro uye kugadzirisa kugadzirwa. Kumbira mutengo nhasi kubva kumutengesi we polymer viscometer uyu akavimbika!
Nguva yekutumira: Chikunguru-31-2025
