Imigca ye weld yeyona ixhaphakileyo phakathi kweziphene ezininzi zeisitofu iimveliso ezibunjiweyo.Ngaphandle kweendawo ezimbalwa ezibunjiweyo ezinenaliti ezinemilo yejiyometri elula kakhulu, imigca yeweld iyenzeka kwiindawo ezininzi ezibunjiweyo zenaliti (idla ngokufana nomgca okanye umjelo omilise okwe-V), ingakumbi kwiimveliso ezinkulu nezintsonkothileyo ezifuna ukusetyenziswa kwemold yamasango amaninzi. kunye nokufaka.
Umgca we-weld awuchaphazeli kuphela umgangatho wembonakalo yamacandelo eplastiki, kodwa uchaphazela iimpawu zoomatshini zamacandelo eplastiki, njengamandla empembelelo, amandla okuqina, ukunyusa ngexesha lekhefu, njl. uyilo lwemveliso kunye nobomi bamalungu eplastiki.Ngoko ke, kufuneka iphetshwe okanye iphuculwe kangangoko kunokwenzeka.
Izizathu eziphambili zomgca we-weld zezi: xa iplastiki etyhidiweyo idibana nokufakwa, umngxuma, indawo enesantya sokuhamba okungapheliyo okanye indawo enesiphazamiso sokuzaliswa kwezinto eziphathekayo kwi-mold cavity, i-multiple melts idibanisa;Xa ukugcwaliswa kwenaliti yesango kwenzeka, izixhobo azikwazi ukuxutywa ngokupheleleyo.
(1) Ubushushu obuphantsi kakhulu
Iipropathi zokucima kunye nokuguqula izinto ezincibilikisiweyo zobushushu obuphantsi zihlwempuzekile, kwaye imigca ye-weld kulula ukwenza.Ukuba imiphezulu yangaphakathi nangaphandle yeenxalenye zeplastiki zinemigca emihle yokuwelda kwindawo enye, kudla ngokuba yi-welding engalunganga ebangelwa kubushushu bezinto eziphantsi.Kulo mba, iqondo lokushisa lombhobho kunye nomlomo linokunyuswa ngokufanelekileyo okanye umjikelo wenaliti unokwandiswa ukwandisa ubushushu bezinto eziphathekayo.Ngexesha elifanayo, ubungakanani bamanzi okupholisa adlula kwi-mold kufuneka ilawulwe, kwaye ukushisa kwe-mold kufuneka kwandiswe ngokufanelekileyo.
(2)Ngundoiziphene
Iiparamitha zesakhiwo se-mold gating system zinempembelelo enkulu kwi-fusion ye-flux, kuba ukudibanisa okungahambi kakuhle kubangelwa ikakhulu yi-shunt kunye ne-confluence ye-flux.Ngoko ke, uhlobo lwesango olunokuphazamiseka okuncinci luya kwamkelwa ngokusemandleni kwaye indawo yesango iya kukhethwa ngokufanelekileyo ukuphepha izinga lokuzaliswa okungahambelaniyo kunye nokuphazamiseka kokuzalisa ukuhamba kwezinto.Ukuba kunokwenzeka, isango elinye iphuzu kufuneka likhethwe, kuba eli sango alivelisi imijelo emininzi yokuhamba kwezinto, kwaye izinto ezityhidiweyo aziyi kudibanisa ukusuka kumacala amabini, ngoko kulula ukuphepha imigca ye-weld.
(3) Umbhobho ongekho mgangathweni
Xa umgca we-fusion wezinto ezinyibilikileyo uhambelana nomgca wokuvala i-mold okanye i-caulking, umoya oqhutywe yimijelo emininzi yezinto eziphathekayo kwi-mold cavity unokukhutshwa kwi-gap yokuvala i-mold okanye i-caulking;Nangona kunjalo, xa umgca we-welding ungahambelani nomgca wokuvala i-mold okanye i-caulking, kwaye umngxuma we-vent awumiselwanga ngokufanelekileyo, umoya oseleyo kwi-mold cavity eqhutywa yi-flow material ayikwazi ukukhutshwa.I-bubble inyanzeliswa phantsi koxinzelelo oluphezulu, kwaye ivolumu iyancipha ngokuthe ngcembe, kwaye ekugqibeleni ixinzelelwe kwinqanaba.Ngenxa yokuba amandla e-molecular dynamic omoya ocinezelweyo aguqulwa abe ngamandla obushushu phantsi koxinzelelo oluphezulu, iqondo lobushushu kwindawo yokuqokelela izinto ezinyibilikisiweyo liyenyuka.Xa ubushushu bayo bulingana okanye bungaphezulu kancinci kunobushushu bokubola bezinto ezikrwada, amachaphaza aYellow aya kuvela kwindawo yokunyibilika.Ukuba iqondo lobushushu liphezulu kakhulu kunobushushu bokubola bemathiriyeli ekrwada, amachaphaza amnyama aya kuvela kwindawo yokunyibilika.
(4) Ukusetyenziswa okungafanelekanga kwe-arhente yokukhululwa
I-arhente yokukhululwa kakhulu okanye uhlobo olungalunganga luya kubangela imigca ye-weld kumphezulu wamalungu eplastiki.Ekubunjweni kwesitofu, inani elincinci le-ejenti yokukhulula lisetyenziswa ngokulinganayo kuphela kwiindawo ekungelula ukuzidiliza, njengeentambo.Ngokomgaqo, inani le-arhente yokukhulula kufuneka lincitshiswe kangangoko kunokwenzeka.
Ixesha lokuposa: Nov-04-2022