1. Xa ubhaka ubukhulu obukhulu obukhulu, sebenzisa ilungiselelo elithi tyaba. Kucetyiswa ukuba kwelona nani liphezulu le-stack akufuneki lidlule amaqhekeza angama-30. I-oven kufuneka ivulwe ngaphakathi kwemizuzu eli-10 emva kokubhaka ukuthoba i-PCB kwaye ibeke iflethi yokupholisa. Emva kokubhaka, kufuneka icinezelwe. I-anti-bigtutions. I-PCB ezinkulu ze-PCB azicetyiswa ukuba zibhaka, njengoko kulula ukugoba.
2. Xa ubhaka i-pcbs ezincinci nephakathi, ungasebenzisa iflethi. Elona nani liphezulu lesitaki liyacetyiswa ukuba singabi lidlule ezingama-40, okanye lingathe tye, kwaye inani alikho umda. Kuya kufuneka uvule i-oveni kwaye ukhuphe i-PCB ngaphakathi kwemizuzu eli-10 yokubhaka. Vumela ukuba upholile, kwaye cinezela i-anti-bush jig emva kokubhaka.
Amanyathelo okhuseleko xa ukubhaka
I-1. Iqondo lokubhaka lokubhaka alifanelanga kudlula kwindawo ye-TGB, kwaye imfuneko jikelele ayifanele idlule kwi-125 ° C. Kwiintsuku zokuqala, inqaku le-TG le-PCBs le-PCBS laliphantsi, kwaye ngoku i-TG yee-PCB ezikhokelayo iphakathi kwe-150 ° C.
2. I-PCB ebhakiweyo kufuneka isetyenziswe ngokukhawuleza. Ukuba ayisetyenziswanga, kufanele ukuba i-vacuum ipakishwe ngokukhawuleza. Ukuba ityhilwe kwindibano yocweyo ixesha elide, kufuneka iphekwe kwakhona.
3. Khumbula ukufaka izixhobo zokumisa umoya kwi-oveni, kungenjalo i-Steam izakuhlala kwi-oveni kwaye ikhulise umswakalo wayo, engalunganga kwi-PCB Dehumifidition.
4. Ukusuka kwinqanaba lokujonga umgangatho, igosa le-PCB elitsha lisetyenziswa, okungcono umgangatho uya kuba. Nokuba i-PCB ephelelwe lixesha isetyenzisiwe emva kokubhaka, kusekho umngcipheko othile.
Iingcebiso zokubhaka i-PCB
1. Kucetyiswa ukusebenzisa ubushushu be-105 ± 5 ℃ ukubhaka i-PCB. Kuba indawo yokubila yamanzi yi-100 ℃, lo gama nje idlula kwindawo yayo yokubila, amanzi aya kuba ngumxhasi. Kuba i-PCB ayinazo iimolekyuli ezininzi zamanzi, ayifuni kubushushu obuphezulu kakhulu ukonyusa inqanaba lokufumana i-vaporizay yayo.
Ukuba iqondo lobushushu liphezulu kakhulu okanye inqanaba lokukhulisa ngokukhawuleza likhawuleza, lingangela ukuba amanzi anempuphu ukuze akhule ngokukhawuleza, engalunganga kumgangatho. Ingakumbi kwiibhodi zeqela lemixwaba kunye nee-PCB ezinemingxunya engcwatywe, i-105 ° C ingaphezulu nje kwendawo yokubila amanzi, kwaye iqondo lobushushu aliyi kuphakama kakhulu. , Ingancipha kwaye inciphise umngcipheko we-oxidation. Ngapha koko, amandla e-oveni ekhoyo ukulawula amaqondo obushushu aphuculwe kakhulu kunangaphambili.
2. Ingaba i-PCB kufuneka ibhakiwe ixhomekeka ekubeni ukupakishwa kwayo kufike khona, oko kukuthi, ukuqaphela ukuba i-Hic (Ikhadi lesalathiso sesalathiso) libonisa ukufuma. Ukuba ukupakisha kulungile, i-HIC ayibonisi ukuba umswakama ngokwenene ungaya kwi-Intanethi ngaphandle kokubhaka.
3. Kucetyiswa ukuba usebenzise "ngokuthe tye" kwaye ubhaka xa ubhaka i-PCB, kuba le inokufezekisa iziphumo eziphezulu zengfinyezi eshushu, kunye nokufuma kulula ukubhakwa kwi-PCB. Nangona kunjalo, i-pribbs enkulu, kunokuba yimfuneko ukuqwalasela ukuba uhlobo oluthe nkqo luya kubangela ukugoba kweBhodi.
4. Emva kokuba i-PCB ibhakiwe, kuyacetyiswa ukuyibeka kwindawo eyomileyo kwaye ivumele ukuba ipholile ngokukhawuleza. Kungcono ukucinezela "ukugoba i-anti-Bells" ngaphezulu kweBhodi, kuba eyona nto ilula kulula ukuyifumana i-vapor yamanzi ukusuka kwinkqubo yokupholisa. Nangona kunjalo, ukuphola ngokukhawuleza kunokubangela ukugoba iplate, efuna ibhalansi.
Izinto ezingalunganga ze-pcb bang kunye nezinto ekufuneka ziqwalaselwe
I-1. Ukubhaka kuyakhawulezisa i-oxidation ye-PCB engapheliyo, kunye namaqondo obushushu aphezulu, ixesha elide lokubhaka, eyona nto ingenakuvumelekile.
2. Akucetyiswa ukuba ubhakwe iibhodi ze-OSP kwiqondo lokushisa elingaphezulu, kuba ifilimu ye-OSP iya kuncipha okanye iphumelele ngenxa yobushushu obuphezulu. Ukuba kuya kufuneka ubhaka, kuyacetyiswa ukuba ubhaka kubushushu obungama-105 ° 5 ° C, ungabi ngaphezu kweeyure ezimbini, kwaye kuyacetyiswa ukuba uyisebenzise kwiiyure ezingama-24 emva kokubhaka.
3. Ukubhaka kunokuba nefuthe kwi-IMC, ngakumbi i-Hasl (i-Tin Spray), i-ImSn (i-Imsn (i-TIT ye-Imc) ithengisa i-PCB ithengisiwe, ngenxa yokuhambisa i-Imb, ngenxa yokuba i-Imc Supeds (i-COPER) ivelisiwe, eyenza iingxaki zokuthembakala.