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paerewa International mō ngā whakaritenga papa

wā: 2012-05-18

  Ko te 6118 paerewa o te International Electrotechnical Commission IEC International Eletrotechnical Kōmihana whakaae te hiahia mo te rerekē ngā taumata mō te tūhoto te aho tikanga tukinga papa ranei. haapapu tēnei paerewa ao hou e rua tikanga taketake mō te whakarato kōrero i runga i te whanaketanga o ngā āhua papa:

1). mōhiohio tika e hāngai ana i runga i ngā wāhanga ahumahi, PCB ahumahi poari tārua me te wāhanga whakanohonga kaha tika. He iti ki te wāhanga motuhake ēnei āhua papa, me te whai i te maha e tāutu ana i te āhua o te papa.

2). Ka taea te whakamahi ētahi whārite ki te huri i te mōhiohio i homai ki te whakatutuki i te tahi tūhoto atu pakari, whakamahia nei i roto i te wā motuhake i reira riro te tika te hoki whakapuru whakapuru i te pūrere ranei atu ka whakatau i te kōrero papa. He nui ake iti iho ranei rerekētanga.

tautuhi ana tēnei paerewa te mōrahi, reo, me ngā āhuatanga iti mō Pads rauemi e whakamahia ana ki te Maunga ngā titi wae ranei terminals. Ki te kore te kore tohua, tenei paerewa tohu katoa e toru ngā whāinga e hiahiatiarite Taumata 1, taumata 2 Taumata ranei 3.

taumata 1: Max - Hoki tono hua kiato iti, te "mōrahi" E whakamahia tikanga papa mō te tihi ranei rere whakapiringa wae leadless kongakonga me pinea wāhanga pakihau. Ko te āhuahanga whirihoratia hoki enei wae, rite pai rite te roto "T" wāhanga mata āhua, whakarato i tētahi matapihi tukanga whānui mō te whakapiringa ringa me te Reflow whakapiringa.

taumata 2: Waenga - Products ki reo ki densities wāhanga reo taea te whakaaro mo tenei "reo" āhuahanga papa. He nui rite te IPC-SM-782 āhuahanga papa paerewa, he papa reo whirihora mō ngā momo wāhanga katoa e whakarato i tētahi huru whakapiringa pakari hoki te tukanga whakapiringa Reflow me kia kia leadless me te whai parirau. Poipoi rere whakapiringa whakarato te tikanga tika ranei.

taumata 3: Minimal - Products ki densities wāhanga tiketike Ko te tikanga he tono hua kawe e taea te tango ki pūkete te "iti" āhuahanga whenua. E kore ai te kōwhiringa o te āhuahanga papa iti kia e tika ana mō ngā hua katoa. I mua i te whakamahi i te āhua papa iti, te whakamahi i tenei kia whakaaro herenga o te hua \ 'me te whakamātautau i runga i te tikanga e whakaaturia ana i roto i te ripanga.

Ko te geometries papa whakaratohia i roto i te IPC-SM-782 me whirihora i IEC 61188 kia hāngai ngā tukunga wāhanga me te tukanga taurangi. I Pads i roto i te paerewa IPC whakarato kē he atanga pakari mō te nuinga o ngā tono whakaminenga o te kaiwhakamahi \, Kua whakahuatia etahi kamupene te hiahia mō geometries iti mō te hikohiko kawe me te tahi atu densities teitei ahurei papa. tono.

Te International Pad Paerewa (IEC61188) mārama te whakaritenga mō ngā tono kiato wahi teitei, ka whakarato ngā mōhiohio i runga i te āhuahanga papa mo te momo ngā hua. Ko te whakaaro o tenei kōrero ko ki te whakarato i te rahi e tika ana, te hanga me te tukunga o te mata Maunga Pads ki te whakarite tika ngā wāhi o te aho tūhoto tika, me te ki te tukua te tirohanga, whakamātautau me te rework o enei hononga tūhoto.