Menene Tanderun Reflow Na Nitrogen?

Nitrogen reflow soldering shine tsari na cika ɗakin reflow da iskar nitrogen don toshe shigowar iska a cikin tanda mai sake fitarwa don hana iskar oxygen da sassan ƙafafu yayin sake fitarwa.Yin amfani da reflow na nitrogen shine yafi don haɓaka ingancin soldering, don haka soldering yana faruwa a cikin yanayin da ke da ƙarancin iskar oxygen (100 PPM) ko ƙasa da haka, wanda zai iya guje wa matsalar oxidation na sassan.Don haka babban batun sayar da reflow na nitrogen shine don tabbatar da cewa abun da ke cikin iskar oxygen ya ragu sosai.

Tare da karuwar yawan taro da kuma fitowar Fasahar Taro ta Fine, an samar da tsarin sake kwararar nitrogen da kayan aiki, wanda ya inganta ingancin sayar da kayayyaki da yawan amfanin ƙasa kuma ya zama jagorar ci gaba na reflow soldering.Guangshengde don magana game da sayar da sake kwararar nitrogen yana da fa'idodi masu zuwa.

(1) Rigakafi da rage oxidation.

(2) inganta solder wetting ƙarfi da kuma hanzarta wetting gudun.

(3) rage samar da kwalayen kwano, don gujewa gada, don samun ingantacciyar walda.

Amma rashin amfaninsa shine bayyanannen haɓakar farashi, wannan haɓakar farashi tare da adadin nitrogen, lokacin da kuke buƙatar isa abun ciki na oxygen 1000ppm a cikin tanderun tare da abun ciki na oxygen na 50ppm, babban gwajin abun ciki na nitrogen shine ta hanyar tallafawa nau'in nau'in oxygen abun ciki na nazari akan layi. , Ka'idar gwajin abun ciki na oxygen shine ta mai binciken abun ciki na oxygen da farko da aka haɗa ta hanyar wurin tattarawar reflow na nitrogen, sannan kuma tattara iskar gas, bayan gwajin abun ciki na oxygen Ana nazarin ƙimar abun ciki na oxygen don samun kewayon tsaftataccen abun ciki na nitrogen.Nitrogen reflow soldering gas tarin maki suna da akalla daya, high-karshen nitrogen reflow soldering gas tarin maki fiye da uku, waldi samfurin bukatun ne daban-daban a kan bukatar nitrogen ne duniya bambanci.

Don gabatarwar nitrogen a cikin reflow soldering, shi wajibi ne don gudanar da wani kudin-fa'ida bincike, da amfanin sun hada da samfurin yawan amfanin ƙasa, ingancin inganta, rework ko kiyaye halin kaka rage, da dai sauransu A cikakken da rashin son zuciya bincike zai sau da yawa bayyana cewa gabatarwar nitrogen. baya ƙara farashin ƙarshe, akasin haka, za mu iya amfana daga gare ta, na yau da kullun na ruwa na nitrogen, akwai injunan nitrogen, zaɓin nitrogen kuma ya fi sauƙi.

Nawa PPM na oxygen ya dace a cikin tanderun nitrogen?

Littattafan da suka dace suna jayayya cewa ƙasa da 1000PPM infiltration zai kasance da kyau sosai, 1000-2000PPM shine mafi yawan amfani da shi, amma ainihin amfani da yawancin tsarin ta amfani da 99.99% wanda shine 100PPM nitrogen, har ma 99.999% wanda shine 10PPM, da wasu abokan ciniki. ko da a cikin amfani da 98% na nitrogen wanda ya kai 20,000PPM.wata sanarwa ta OSP tsarin, walda mai gefe biyu, tare da PTH ya kamata ya zama ƙasa da 500PPM, yayin da karuwar adadin abubuwan tunawa da ke faruwa ya haifar da rashin daidaiton bugu.

Yawancin tanderun da ake amfani da su a yau sune nau'in zazzagewar iska mai zafi, kuma ba aiki mai sauƙi ba ne don sarrafa amfani da nitrogen a cikin irin wannan tanderun.Akwai hanyoyi da yawa don rage yawan amfani da nitrogen: ɗaya shine rage wurin buɗewa na shigo da fitarwa na tanderu, yana da mahimmanci a yi amfani da sassan, labule ko makamancin na'urori don toshe ɓangaren shigo da fitarwa na sararin samaniya. wanda ba a yi amfani da shi ba, wani kuma shine a yi amfani da ka'idar cewa Layer nitrogen mai zafi yana da haske fiye da iska kuma ba zai iya haɗuwa ba, lokacin da ake tsara wutar lantarki don yin ɗakin dumama fiye da shigo da fitarwa yana da girma, ta yadda ɗakin dumama ya samar. wani nau'in nitrogen na halitta, wanda ke rage adadin ramuwa na nitrogen kuma yana rage adadin nitrogen kuma ya sa ya fi sauƙi ga haɗuwa.Wannan yana rage adadin ramuwa na nitrogen kuma yana kiyaye tsabtar da ake bukata.