Kedu ka oven reflow nke oge a si arụ ọrụ?

Iji mee nke ọma solder elu ugwu components na sekit osisi, okpomọkụ kwesịrị ibufe na solder alloy mado ruo mgbe okpomọkụ ya ruru a wụrụ awụ ebe (217°C maka SAC305 edu free solder).Alloy mmiri mmiri ga-ejikọta ya na paịlị ọla kọpa PCB wee ghọọ ngwakọta eutectic alloy.A ga-emepụta nkwonkwo siri ike na-ere ihe mgbe ọ jụrụ oyi n'okpuru ebe a wụrụ awụ.

Enwere ụzọ atọ iji nyefee okpomọkụ site na isi iyi ọkụ gaa na ihe ọkụ ọkụ.

1. Nduzi: Ntugharị ọkụ na-ebufe ozugbo site na ihe mgbe enwere ọdịiche nke okpomọkụ n'etiti mpaghara ndị dị n'akụkụ, na-enweghị mmegharị nke ihe.Ọ na-eme mgbe ihe abụọ dị na okpomọkụ dị iche iche na-ejikọta ibe ha.Okpomọkụ na-esi na igwe na-ekpo ọkụ na-aga na ihe nju oyi ruo mgbe ha abụọ nọ n'otu okpomọkụ.
2. Radiation: Mbufe ọkụ site na radieshon na-ewere ọnọdụ n'ụdị ebili mmiri electromagnetic tumadi na mpaghara infrared.Radiation bụ usoro nnyefe okpomọkụ nke na-adabereghị na kọntaktị ọ bụla n'etiti isi iyi ọkụ na ihe ọkụ ọkụ.Mmachi nke radieshon bụ na ahụ ojii ga-amịkọrọ okpomọkụ karịa ahụ ọcha.
3. Convection: Mkpokọta ọkụ bụ ịnyefe okpomọkụ site n'otu ebe gaa na nke ọzọ site na mmegharị nke mmiri dị ka ikuku ma ọ bụ vapor gas.Ọ bụkwa ụzọ na-enweghị kọntaktị iji nyefee okpomọkụ dị ka nke ọma.

Nke oge a solderreflow ovenjiri echiche nke radieshon na convection jikọtara ọnụ.Igwe ọkụ seramiiki nwere radieshon infrared na-ebupụta ọkụ, mana ọ naghị ebufe ya na PCB ozugbo.Okpomọkụ ga-ebufe na onye na-ahụ maka ikpo ọkụ na-ebu ụzọ mee ka ọ pụta ìhè ọbụna.Igwe ikuku convection ga-afụ ikuku na-ekpo ọkụ n'ime ụlọ dị n'ime.The lekwasịrị anya PCB nwere ike na-ekpo ọkụ agbanwe agbanwe n'ebe ọ bụla.