Tushen tukwane masu launi: ci gaba mai dorewa? 

Kuna ganin 'kullun tukwane masu launin zinc' a kan takamaiman takarda ko gidan yanar gizon masu siyarwa, kuma saurin amsawa a cikin layin aikinmu galibi yana haɗuwa da shakku da son sani. Shin gimmick ne kawai na tallace-tallace, hanyar da za a caji ƙarin don madaidaicin fastener tare da dash na fenti? Ko akwai ingantacciyar hujjar injiniya da muhalli da aka binne a ƙarƙashin wannan launi na launi? Na shafe shekaru masu yawa don samowa da gwada kayan ɗamara don aikace-aikacen waje daban-daban da na gine-gine, kuma zan iya gaya muku, tattaunawar da ke kewaye da waɗannan sassan ba safai ba ne baki da fari-ko a wannan yanayin, azurfa da shuɗi. Da'awar dorewa ita ce ƙugiya ta gaske, amma an haɗa shi da tatsuniyoyi na wasan kwaikwayo, kayan aikin sinadarai, da wasu munanan haƙiƙanin daga bene na masana'anta.

Bayan Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararrun Ƙwararrun Ƙwararrun Ƙaƙwalwa na Ƙaƙwalwar Launi

Bari mu yanke ta hanyar kuskuren farko: launi ba na farko don kamanni ba. Tabbas, yana ba da damar yin rikodin launi a cikin taro ko haɗin gine-gine, wanda ke da ƙima. Amma a cikin ma'anar aiki, waccan suturar launi-yawanci abin rufewa na chromate tare da rini ko simintin halitta - shine ainihin dokin aiki. Daidaitaccen ma'auni mai haske ko shuɗi mai haske na zinc yana ba da kariya ta lalata, amma tsawon rayuwarsa a kan tsatsa, musamman a cikin yanayi mai laushi ko bakin teku, na iya zama gajere. Launi mai launi, sau da yawa mai kauri mai trivalent ko maras hexavalent chromate Layer, yana aiki azaman shinge mai ƙarfi sosai. Yana rufe lallausan tulin tulin da ke ƙasa. Na ga daidaitattun sassan zinc da aka bayyana daga batch suna nuna farin lalata bayan sa'o'i 48 a gwajin feshin gishiri, yayin da masu rawaya iridescent daga wannan tsari har yanzu suna da tsabta a cikin sa'o'i 96. Bambancin ba kayan kwalliya ba ne; yana da mahimmancin haɓakawa a cikin juriya na lalata.

Wannan yana kaiwa kai tsaye zuwa kusurwar dorewa. Idan kullin ya daɗe sau biyu ko uku kafin ya lalace, kuna rage mitar sauyawa, sharar kayan abu, da aiki/makamashi don kulawa. Wannan fa'idar rayuwa ce ta zahiri. Amma-kuma yana da girma amma-wannan ya rataya gaba ɗaya akan amincin wannan tsari mai launi. Wankin da ba a sarrafa shi ba, rashin daidaitaccen lokacin nutsewa, ko rashin isasshen kurkura na iya barin ku da wani ɓangaren da yayi kyau lokacin isowa amma ya gaza da wuri. Launi na iya ɓoye ɗimbin zunubai a cikin rufin zinc ɗin da ke ƙasa, wanda shine dalilin da ya sa amincewa da tsarin sarrafa mai siyarwar ku ba zai yuwu ba.

Na tuna wani aikin titin jirgin ruwa na gefen teku. Maginin yana son ƙayyadadden ƙarewar tagulla mai duhu. Mun samo asali tukwane masu launin tutiya wanda yayi daidai daidai. A gani, ba su da aibi. A cikin watanni 18, mun sami rahotanni na tsatsa. Binciken bayan gazawar ya nuna cewa Layer na zinc yana da bakin ciki kuma mai laushi; Kyakykyawan doguwar rigar ta rufe wani aikin platin da mara inganci. Samfurin mai ɗorewa, mai dorewa ya zama tushen gazawar da wuri da sharar gida. Darasin ba shine fasahar ba ta da kyau, amma aikinta gaba ɗaya ya dogara da tsari.

Canjin Chemistry: Daga Hex-Cr zuwa Trivalent da Beyond

Tushen don dorewa ya canza ainihin sinadarai a bayan waɗannan suturar. Shekaru da yawa, ma'aunin gwal don juriya mai girman lalacewa shine Layer passivation chromate (Hex-Cr). Ya samar da waɗancan ƙaƙƙarfan rawaya ko ƙyalli kuma yana da tasiri sosai. Amma kuma yana da guba sosai kuma yana haifar da ciwon daji, yana haifar da matsananciyar muhalli da ƙa'idodin amincin ma'aikata (RoHS, REACH). Kiran kullin mai rufin Hex-Cr mai dorewa zai zama abin dariya, ba tare da la'akari da tsawon sa ba.

Bidi'a-ainihin mataki mai dorewa-ya kasance haɓakar chromate trivalent da marasa chromium (misali, tushen zirconium, tushen silica) riguna masu canzawa waɗanda za'a iya canza launin su. Waɗannan ba su da haɗari sosai. Lokacin mai kaya kamar Hannun Zetai Mretering co., Ltd. suna magana game da launin zinc plating yanzu, kusan tabbas suna magana ne akan waɗannan sabbin sinadarai. Ana zaune a Yongnian, cibiyar samar da kayan aiki na kasar Sin, suna cikin yankin da ya kamata ya daidaita cikin sauri zuwa matsayin muhalli na duniya. Canjin ba na zaɓi ba ne ga masu fitarwa.

Duk da haka, muhawarar daidaiton aiki na gaske ne. Na farko trivalent chromates bai yi daidai da kaddarorin warkar da kai na Hex-Cr ko juriyar feshin gishiri ba. Fasaha ta kama sosai, amma tana buƙatar ƙarin ingantaccen sarrafa tsari. Chemistry na wanka ba shi da gafara. Na sami wakilai na fasaha daga kamfanonin sinadarai masu shafa sun yarda cewa idan pH ko zafin jiki ya motsa, daidaiton launi da aikin lalata na matakai masu mahimmanci na iya bambanta fiye da tsohon, ma'auni mai guba. Don haka, madadin ɗorewa yana buƙatar ƙwarewa mafi girma daga masana'anta. Ba sauƙaƙan digo ba ne.

Haƙiƙanin Sarkar Bayarwa da Factor na Yongnian

Lokacin da kuka shiga cikin inda waɗannan tukwane masu launin tutiya ya zo daga, babban girma yana gudana ta cikin gungu kamar gundumar Yongnian a Handan. Matsakaicin gwaninta da abubuwan more rayuwa a can yana da ban mamaki. Kamfani kamar Handan Zitai Fastener, wanda ke kusa da manyan hanyoyin sufuri, ya ƙunshi ma'auni da ƙarfin wannan tushe. Za su iya sarrafa dukan sarkar: sanyi kan kai, zaren, maganin zafi, plating, da canza launi. Wannan haɗin kai tsaye shine maɓalli don sarrafa inganci a cikin tsari mai mahimmanci kamar platin launi.

Amma ma'auni yana kawo nasa ƙalubale. A lokacin buƙatun kololuwa, na ga daidaiton inganci yana shan wahala a duk faɗin hukumar a yankin. Matakin canza launi, sau da yawa mataki na ƙarshe, na iya zama ƙugiya. Kurkurewar gaggawa ko gajeriyar lokutan bushewa kafin marufi na iya haifar da tabon ajiya -lalacewa da ke faruwa a cikin wucewa saboda ragowar danshi yana kama da kusoshi. Kuna karɓar akwati na ƙwanƙolin launuka masu kyau waɗanda tuni suka fara fara farar tsatsa a cikin ramukan. Wannan ba gazawar ra'ayin samfurin ba ne, amma na kayan aikin samarwa da ƙofofi masu inganci. Yana da tunatarwa mai amfani cewa dorewa ba kawai game da sinadarai masu sutura ba; yana da game da dukan tsarin masana'antu wanda ke hana sharar gida.

Shafukan yanar gizon su, zitaifaseners.com, yana nuna kewayon-daga daidaitaccen galvanized zuwa mai launi zinc-plated zažužžukan. Abin da ba ku gani shi ne zuba jarurruka na baya-bayan nan a cikin maganin sharar gida don layukan su, wanda shine babban ɓangare na farashin muhalli na gaskiya. Ƙaddamar da mai bayarwa don magance ƙazanta daga tsarin plating da canza launi shine, a gani na, mafi nuna alamar matsayinsu fiye da launi na kullin kanta.

Ƙimar Aikace-aikacen: Inda Yayi Ma'ana (kuma Inda Bai Yi ba)

Don haka, yaushe za ku ƙididdige kullin tutiya mai launi? Ba haɓakawa na duniya ba ne. Don cikin gida, wuraren bushewa, yana da kisa; daidaitaccen zinc ya fi tasiri. Tabo mai dadi yana cikin aikace-aikacen waje inda ake buƙatar matsakaici zuwa matsakaicin juriya na lalata, amma bakin karfe yana da tsada-haramta, kuma galvanizing mai zafi yana da girma ko m ga taron. Ka yi tunanin shingen lantarki, hawan HVAC, ƙirar hasken rana, kayan aikin filin wasa, da wasu kayan aikin ƙarfe na gine-gine.

Mun yi amfani da su cikin nasara akan jerin sandunan fitilu na waje na zamani. Makullan da ake buƙata don haɗawa tare da ƙarewar sandar tagulla mai duhu da kuma jure yanayin bakin teku-birane. Kyawawan kusoshi masu launin trivalent chromate sun ba da juriya na lalata da wasan kwalliya. Shekaru biyar a ciki, ba tare da kulawa ba, har yanzu suna kallo kuma suna yin kyau. Wannan nasara ce ga hujjar dorewa-babu maye gurbin, babu tabo, babu kira.

Amma akwai iyaka. Mun yi ƙoƙari mu yi amfani da su a cikin yanayin daɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗakakakakakaninjuna gona. Launi mai launi, yayin da yake jure lalata, yana da ɗan sirara kuma ya bushe da sauri a saman saman, yana fallasa tushen zinc ga saurin lalacewa. Kasawa Ya koya mana cewa juriya abrasion wani abu ne na daban gaba ɗaya. Bidi'a ta musamman; yana magance matsalar lalata/ganewa, ba lalacewa ta inji ba.

Hukuncin: Eh mai cancanta, tare da buɗe ido

Shin sabon abu ne mai dorewa? Ee, amma tare da manyan cancantar. Yunkurin daga Hex-Cr mai guba zuwa mafi aminci trivalent ko wadanda ba chrome chemistries ne bayyananne nasara muhalli da lafiya. Yiwuwar tsawaita rayuwar sabis ta mafi kyawun kariyar shinge yana rage sharar gida. Wannan shine jigon shari'ar mai dorewa.

Koyaya, kalmar mai ɗorewa tana samun diluted idan tsarin masana'anta ya ɓata ko kuma ba a sarrafa shi ba, yana haifar da ƙima da ƙima ko gazawar da wuri a fagen. Bidi'a ba a cikin kullun yana shuɗi ko rawaya; yana cikin ci-gaba, ingantaccen tsarin sinadarai da aka yi amfani da shi tare da daidaito akan sautin zinc. Yana buƙatar ƙwararrun masana'anta, mai saka hannun jari.

Shawara ta? Kada ku yi oda kawai ta hanyar launi. Yi tambayoyi akan tsari. Nemi rahoton gwajin feshin gishiri (ASTM B117) yana ƙayyadaddun sa'o'i zuwa fari da tsatsa ja don ƙayyadaddun ƙayyadaddun launin su. Yi tambaya game da sarrafa ruwan sharar su. Audit idan za ku iya. Haƙiƙan dorewa, da aiki, sun fito ne daga cikakkun bayanai a bayan facade masu launi. Ga masu samar da kayayyaki da ke aiki a sikelin tare da haɗaɗɗun sarrafawa, kamar waɗanda ke cikin tushen Yongnian waɗanda suka daidaita, yana wakiltar ci gaba na gaske. Ga wasu, ƙarfe ne kawai mai launi. Sanin bambancin shine komai.