ʻO ka maʻamau nānā ʻana o ka papa PCB

Nā Kūlana Nānā Papa Kaapuni

1. He kūpono ka laulā no ka nānā ʻana mai o nā papa kaapuni kelepona HDI.

2. E nānā ʻia ka hoʻolālā laʻana e like me GB2828.1-2003, pae nānā nui II.

3. Hoʻokumu ʻia ka nānā ʻana i nā kikoʻī ʻenehana maka a me nā laʻana nānā.

4. Hoʻokumu ʻia ka pae maikaʻi kūpono ma ka waiwai AQL: Papa A = 0.01, Papa B = 0.65, Papa C = 2.5.

5. Nā mea hana a me nā mea ho'āʻo: plug gauge, vernier caliper, reflow umu, dynamometer, magnifying glass, digital multimeter, mau wela a me ka pahu haʻahaʻa, kī ola mea hōʻike, gula-plated layer mānoanoa mea ho'āʻo, pālahalaha a aniani paha, insulation kū'ē hōʻike. ferrochrome wela mau.

6. Ka hoʻokaʻawale ʻana o nā hemahema: helu serial Mea nānā ʻia ka wehewehe ʻana Defect description Ua pulu ka ʻeke o waho, ua waiho ʻia nā mea i loko o ka maʻi Defect category CB Manaʻo 1 ʻAʻohe lepili i loko a i waho paha o ka pūʻolo, lepili hewa ʻole, hāʻule ka wai i loko, ʻaʻohe moisture-proof beads, ʻaʻohe kāleka haʻahaʻa. , nā mea i hui pū ʻia, ʻaʻohe pahu pahu.

1 ʻAʻole hāʻawi ʻia ka hōʻike hoʻouna.Hōʻike hoʻouna hale hana

2. ʻAʻole kūlike nā mea nānā i ka hōʻike hoʻouna o ka mea hana e like me kā mākou mau koi maʻamau nānā, ʻaʻole i hoʻokō ka ʻikepili hoʻāʻo i nā koi maʻamau, ʻaʻohe ʻae o ka hōʻike mai ka luna hoʻokele maikaʻi a i ʻole nā ​​limahana kiʻekiʻe, a me ka hōʻike. He wahaheʻe ka ʻike, etc. Inā ʻaʻole i hoʻokō ʻia nā koi i luna.Nā mea nānā helu serial B ka wehewehe ʻana i nā hemahema ʻokoʻa ʻokoʻa ka mea e hiki mai ana mai ka mea hana laʻana, ʻokoʻa ka helu pā, pā like ʻole (me ka ʻike ʻole o ka pā), ʻaʻohe pōʻai hana, a ʻaʻohe kūlana hale hana.ʻAʻohe ʻaoʻao ʻoi a puni ka PCB e hoʻopilikia i ka hui a hōʻeha i ka mea hana.Pores a liʻiliʻi nā pores nui a liʻiliʻi (e like me nā koi o nā kiʻi hoʻolālā) Aia ke koena keleawe i loko o ka lua NPTH, a aia ka oxidation i loko o ka lua.) ka puka ʻana: inā ʻoi aku ka nui o nā koi ma lalo

3 ʻO ka wili ʻana i nā lua puni: NPTH: +/-2mil (+/-0.05mm);NPTH: puka keleawe B ʻole e poho;PTH: lua keleawe poho PTH: +/-3mil (+/-0.075mm) 2,