Zeziphi izizathu ze-SMT engenanto yokuSoldering kunye neMiqathango yokuPhucula?

Enyanisweni, i-SMT inomgangatho ohlukeneyo ovela ngamanye amaxesha, njenge-solder engenanto, i-solder yobuxoki, i-tin, i-toni ephukileyo, elahlekileyo, i-offset, njl., iingxaki zomgangatho ezahlukeneyo zinezizathu ezifanayo, kukho nezizathu ezahlukeneyo, namhlanje siza kuthetha. kuwe malunga SMT solder engenanto ziziphi izizathu kunye nokuphucula countermeasures.
I-solder engenanto ithetha ukuba amacandelo, ngakumbi amacandelo anezikhonkwane awanyuki i-tin, ebizwa ngokuba yi-solder engenanto, i-solder engenanto inezizathu ezi-8 ezilandelayo:

1.Ukuvulwa kwestencil kakubi

Ngenxa yokuba isithuba se-pin sixinene kakhulu, ngoko ke umngxuma mkhulu kakhulu, umncinci kakhulu, ukuba ukuchaneka kokuvula umngxuma kubi kuya kukhokelela ekuncamathelweni akukwazi ukuvuza okanye ukuvuza kuprintwe kancinane kakhulu, okukhokelela ekubeni iphedi ingancamathiseli, i-soldering emva kokuvela i-solder engenanto.

Isisombululo: i-stencil echanekileyo evulekileyo

2. Umsebenzi we-solder paste ubuthathaka

I-Solder intlama ngokwayo umsebenzi wengxaki ubuthathaka, intlama ye-solder akulula ukuyinyibilika eshushu

Isisombululo: Buyisela intlama yesolder esebenzayo

3. Uxinzelelo lwe-scraper luphezulu

Intlama ye-Solder ukuvuza i-coating eprintiweyo kwi-pcb pads, imfuno yokukrazula ngasemva naphambili ukukhuhla kwakhona, ukuba uxinzelelo lwe-scraper kunye nesantya, ukuvuza kwe-solder paste kuya kuba kuncinci kakhulu, okukhokelela kwi-solder engenanto.

Isisombululo: lungisa uxinzelelo kunye nesantya se-scraper

4. Izikhonkwane zecandelo le-warp deformation

Ezinye izikhonkwane zigqwethekile okanye zikhubazeke kwindlela yokuhamba, okukhokelela ekubeni intlama ye-solder enyibilikayo eshushu ayinakunyuka i-tin, ikhokelela kwi-solder engenanto.

Isisombululo: Vavanya phambi kokusetyenziswa uze usebenzise

5. Ifoyile yobhedu emdaka okanye ene-oxidized pcb

Ifoyile yobhedu ye-pcb imdaka okanye i-oxidised, ikhokelela ekukhaseni kakubi kwephini, okukhokelela kwi-solder engenanto.

I-Countermeasures: i-pcb kufuneka isetyenziswe ngokukhawuleza emva kokuvulwa, kwaye kufuneka ibhakwe kwaye ihlolwe phambi kokusetyenziswa.

6. Reflow soldering machine indawo yokutshisa ifudumeza ngokukhawuleza kakhulu

I-Reflow soldering preheating zone ukufudumeza ngokukhawuleza kakhulu, okukhokelela ekubeni intlama ye-solder inyibilikiswe kwindawo yokufudumeza kunye ne-soldering ibe ngumphunga.

Isisombululo esichasene nesisombululo: setha ijika lobushushu lesithando esifanelekileyo

7. Umatshini we-SMTukubekwa kwecandelo offset

Ngenxa yokuba isithuba sephini sixinene kakhulu, ukuchaneka komatshini wokubekwa akukwazi ukufikelela, okukhokelela ekubekweni kwecala, hayi isikhonkwane sokubekwa kwiphedi echongiweyo.

Amanyathelo okumelana nesisombululo: thenga i-mounter echanekileyo ephezulu

8. I-solder paste printing offset

Umatshini wokushicilela we-Solder uncamathelise ukuprinta, inokuba sisizathu sestencil, kwakhona inokuba yipleyiti yokucoca ekhululekile.

Isisombululo: lungisa umatshini wokuprinta we-solder, ulungelelanise i-Table table track fixture ukulungiswa.

Inkcazo yeNeoDen reflow oveni IN6

Ulawulo lwe-Smart kunye ne-sensor yeqondo lokushisa eliphezulu, ubushushu bunokuzinza ngaphakathi kwe- + 0.2 ℃.

Ipleyiti yokufudumeza yealluminiyam esebenza kakhulu endaweni yombhobho wokufudumeza, ukonga amandla kunye nokusebenza kakuhle, kunye nokwahlukana kobushushu obunqamlezayo bungaphantsi kwe-2℃.

Iifayile ezininzi zokusebenza zinokugcinwa, zitshintshe ngokukhululekileyo phakathi kweCelsius kunye neFahrenheit, zibhetyebhetye kwaye kulula ukuyiqonda.

IJapan NSK iibheringi zeemoto zomoya oshushu kunye nocingo lokufudumeza lwaseSwitzerland, lomelele kwaye luzinzile.

Uyilo lwetafile-phezulu yemveliso yenza ukuba ibe sisisombululo esifanelekileyo kwimigca yokuvelisa kunye neemfuno eziguquguqukayo.Yenziwe nge-automation yangaphakathi enceda abaqhubi banikeze i-solder ephuculweyo.

Uyilo lusebenzisa ipleyiti yokufudumeza kwe-aluminium ialloy eyandisa amandla okusebenza kakuhle kwenkqubo.Inkqubo yokucoca umsi yangaphakathi iphucula ukusebenza kwemveliso kwaye inciphisa imveliso eyingozi, nayo.

Iifayile ezisebenzayo zigcinwa ngaphakathi kwe-oven, kwaye zombini iifomati zeCelsius kunye neFahrenheit ziyafumaneka kubasebenzisi.I-oven isebenzisa umthombo wamandla we-110/220V AC kwaye inobunzima obuninzi (G1) be-57kg.