Iindaba

Uvavanyo lomothuko we-Thermal ludla ngokubizwa ngokuba luvavanyo lokothuka kweqondo lobushushu okanye ukukhwela ibhayisekile lobushushu, uvavanyo lobushushu obuphezulu kunye noluphantsi lobushushu obuphantsi.

Izinga lokufudumeza/ lokupholisa akukho ngaphantsi kwe 30℃/ngomzuzu.

Uluhlu lokutshintsha kweqondo lokushisa lukhulu kakhulu, kwaye ubunzima bokuvavanya buyanda ngokunyuka kwezinga lokutshintsha kweqondo lokushisa.

Umahluko phakathi kovavanyo lokungcangcazela kweqondo lobushushu kunye novavanyo lomjikelo weqondo lobushushu ubukhulu becala yindlela eyahlukileyo yomthwalo woxinzelelo.

Uvavanyo lokutshitshiswa kweqondo lokushisa luhlola ubukhulu becala ukungaphumeleli okubangelwa yi-creep kunye nomonakalo wokudinwa, ngelixa umjikelo wobushushu uhlola ubukhulu becala ukusilela okubangelwa kukukhathala kwe-shear.

Uvavanyo lokutshatyalaliswa kobushushu luvumela ukusetyenziswa kwesixhobo sovavanyo lwe-slot ezimbini; uvavanyo lomjikelo lobushushu isebenzisa isixhobo sovavanyo lwe-slot enye. Kwibhokisi ye-slot ezimbini, izinga lokutshintsha ubushushu kufuneka libe likhulu kuno-50℃/ngomzuzu.
Izizathu zokothuso lobushushu: utshintsho olumandla lobushushu ngexesha lokuvelisa kunye neenkqubo zokulungisa ezifana nokuphinda kufakwe i-solder, ukomisa, ukuphinda kusetyenziswe, kunye nokulungiswa.

Ngokutsho kwe-GJB 150.5A-2009 3.1, ukutshitshiswa kweqondo lokushisa lutshintsho olubukhali kwiqondo lokushisa kwindawo yesixhobo, kwaye izinga lokutshintsha kweqondo lokushisa lingaphezulu kwe-10 degrees / min, oko kukuthi ukutshitshiswa kweqondo lokushisa. I-MIL-STD-810F 503.4 (2001) inombono ofanayo.

Kukho izizathu ezininzi zokutshintsha kobushushu, ezikhankanywe kwimigangatho efanelekileyo:
I-GB/T 2423.22-2012 yoVavanyo lokusiNgqongileyo iSigaba sesi-2 sovavanyo N: Ukutshintsha kobushushu
Iimeko zebala lotshintsho lobushushu:
Utshintsho lobushushu luxhaphakile kwisixhobo sombane kunye namalungu. Xa isixhobo singasetyenziswanga, amalungu angaphakathi afumana utshintsho olucothayo lobushushu kunamalungu akumphezulu waso ongaphandle.

Utshintsho olukhawulezileyo lobushushu lunokulindelwa kwezi meko zilandelayo:
1. Xa izixhobo zikhutshelwa kwindawo efudumeleyo yangaphakathi ukuya kwindawo ebandayo yangaphandle, okanye ngokuchaseneyo;
2. Xa isixhobo sibonakaliswe emvuleni okanye sintywiliselwa emanzini abandayo kwaye siphole ngokukhawuleza;
3. Ifakwe kwizixhobo zomoya zangaphandle;
4. Phantsi kweemeko ezithile zothutho kunye nokugcinwa.

Emva kokusetyenziswa kwamandla, i-gradients eziphezulu zokushisa ziya kuveliswa kwisixhobo. Ngenxa yokutshintsha kweqondo lokushisa, amacandelo aya kugxininiswa. Umzekelo, ecaleni kwesixhobo sokumelana namandla aphezulu, ukusasazeka kwemitha kuya kubangela ukuba ubushushu bomphezulu bamacandelo asondeleyo bunyuke, ngelixa ezinye iindawo zihlala zibanda.
Xa isixokelelwano sokupholisa silayitiwe, iinxalenye ezenziweyo ezipholileyo ziya kuba notshintsho olukhawulezayo lobushushu. Ukutshintsha kobushushu obukhawulezayo bamacandelo nako kunokubangelwa ngexesha lenkqubo yokwenziwa kwesixhobo. Inani kunye nobukhulu bokutshintsha kweqondo lokushisa kunye nexesha lexesha libalulekile.

I-GJB 150.5A-2009 Iindlela zoVavanyo lokusiNgqongileyo kweZixhobo zoMkhosi kwiLebhu yeNdawo yesi-5:Uvavanyo loMothuko wobushushu:
3.2 Usetyenziso:
3.2.1 Okusingqongileyo okuQhelekileyo:
Olu vavanyo lusebenza kwizixhobo ezinokuthi zisetyenziswe kwiindawo apho ubushushu bomoya bunokutshintsha ngokukhawuleza. Olu vavanyo lusetyenziselwa kuphela ukuvavanya imiphumo yotshintsho olukhawulezayo lobushushu kumphezulu wangaphandle wesixhobo, iinxalenye ezifakwe kumphezulu wangaphandle, okanye iinxalenye zangaphakathi ezifakwe kufuphi nomphezulu wangaphandle. Iimeko eziqhelekileyo zezi zilandelayo:
A) Isixhobo sidluliswa phakathi kweendawo ezishushu kunye neendawo ezisezantsi zobushushu;
B) Iphakanyiswe kwindawo yobushushu obuphezulu emhlabeni ukuya kwindawo ephezulu (kushushu nje ukuya kubanda) ngumthwali osebenza kakhulu;
C) Xa uvavanya kuphela izinto zangaphandle (ukupakishwa okanye izixhobo zomphezulu wezixhobo), yehliswa kwigobolondo elikhuselayo lenqwelomoya phantsi kokuphakama okuphezulu kunye neemeko zobushushu obuphantsi.

3.2.2 Uvavanyo loKhuseleko noxinzelelo lokusiNgqongileyo:
Ukongeza kwinto echazwe kwi-3.3, olu vavanyo lusebenza ukubonisa imiba yokhuseleko kunye neziphene ezinokuthi zenzeke ngokuqhelekileyo xa isixhobo sibonakaliswe kwiqondo lokushisa elingaphantsi kweqondo lokushisa eliphantsi (ukuba nje iimeko zokuvavanya zingadluli ukuyila." umda wesixhobo). Nangona olu vavanyo lusetyenziswa njengovavanyo loxinzelelo lokusingqongileyo (ESS), lunokusetyenziswa njengovavanyo lokuhlola (usebenzisa ukutshatyalaliswa kobushushu bokushisa okugqithiseleyo) emva konyango olufanelekileyo lobunjineli ukuveza iziphene ezinokuthi zenzeke xa isixhobo sibonakaliswe kwiimeko. ngaphantsi kobushushu obugqithisileyo.
Iziphumo zomothuko wobushushu: GJB 150.5A-2009 Isixhobo soMkhosi seLebhu Indlela yoVavanyo lokusiNgqongileyo Icandelo lesi-5: Uvavanyo loMothuko wobushushu:

4.1.2 Iimpembelelo zokusiNgqongileyo:
Umothuko wobushushu udla ngokuba nefuthe elibi kakhulu kwindawo ekufutshane nomphezulu wesixhobo. Ukude ukusuka kumphezulu wangaphandle (ngokuqinisekileyo, kuhambelana neempawu zezixhobo ezifanelekileyo), ukuguquka kweqondo lokushisa ngokukhawuleza kunye nesiphumo esicacileyo. Iibhokisi zezothutho, ukupakishwa, njl.njl nazo ziya kunciphisa impembelelo yokutshatyalaliswa kobushushu kwizixhobo ezivaliweyo. Ukutshintsha kobushushu obukhawulezayo kunokuchaphazela okwethutyana okanye ngokusisigxina ukusebenza kwesixhobo. Le ilandelayo yimizekelo yeengxaki ezinokuvela xa isixhobo sisesichengeni somothuko wobushushu. Ukuqwalasela ezi ngxaki zilandelayo eziqhelekileyo kuya kunceda ukugqiba ukuba ngaba olu vavanyo lufanelekile kwisixhobo esiphantsi kovavanyo.

A) Iziphumo eziqhelekileyo zomzimba zezi:
1) Ukuqhekeka kwezikhongozeli zeglasi kunye nezixhobo ze-optical;
2) Ukuxinga okanye ukukhulula iindawo ezihambayo;
3) Ukuqhekeka kwiipellets eziqinileyo okanye iikholamu kwiziqhushumbisi;
I-4) Ukuncipha okungafaniyo okanye amazinga okwandisa, okanye ukunyanzeliswa kwemilinganiselo yezinto ezahlukeneyo;
5) Ukuguqulwa okanye ukuphuka kwamalungu;
6) Ukuqhekeka kweengubo ezingaphezulu;
7) Ukuvuza kwiikhabhinethi ezivaliweyo;
8) Ukungaphumeleli kokukhusela ukugquma.

B) Iziphumo eziqhelekileyo zekhemikhali zezi:
1) Ukwahlulwa kwamacandelo;
2) Ukungaphumeleli kokukhuselwa kwe-reagent chemical.

C) Iziphumo zombane eziqhelekileyo zezi:
1) Utshintsho kwizinto zombane kunye ne-elektroniki;
2) Ukujiya ngokukhawuleza kwamanzi okanye iqabaka ebangela ukusilela kombane okanye oomatshini;
3) Umbane omileyo ogqithisileyo.

Injongo yovavanyo lobushushu bobushushu: Ingasetyenziselwa ukufumanisa uyilo lwemveliso kunye neziphene zenkqubo ngexesha lophuhliso lobunjineli; ingasetyenziselwa ukungqinisisa ukulungelelaniswa kweemveliso kwiimeko zomothuko wobushushu ngexesha lokuqukunjelwa kwemveliso okanye ukuchongwa koyilo kunye nezigaba zemveliso yobuninzi, kunye nokubonelela ngesiseko sokugqitywa koyilo kunye nezigqibo zokwamkelwa kwemveliso yobuninzi; xa isetyenziswa njengovavanyo loxinzelelo lokusingqongileyo, injongo kukuphelisa ukusilela kwemveliso kwangethuba.

Iindidi zovavanyo lokutshintsha ubushushu zahlulwe zaba ziindidi ezintathu ngokwe-IEC kunye nemigangatho yesizwe:
1. Uvavanyo lweNa: Utshintsho olukhawulezayo lobushushu kunye nexesha elichaziweyo lokuguqula; umoya;
2. Uvavanyo lweNb: Utshintsho lobushushu kunye nesantya esichaziweyo sokutshintsha; umoya;
3. Uvavanyo lwe-Nc: Ukutshintsha kobushushu obukhawulezayo ngamatanki amabini angamanzi; ulwelo;

Kwezi mvavanyo zintathu zingentla, u-1 no-2 zisebenzisa umoya njengophakathi, kwaye eyesithathu isebenzisa ulwelo (amanzi okanye olunye ulwelo) njengoluphakathi. Ixesha lokuguqulwa kwe-1 kunye ne-2 lide, kwaye ixesha lokuguqulwa kwe-3 lifutshane.