Launi na tutiya-plated flange bolts: ci gaba mai dorewa? 

Kuna ganin 'launi' da 'dorewa' tare akan takarda takamammen, kuma tunaninku na farko tabbas shine tallan tallace-tallace. Nima nayi tunani. A cikin wannan wasan, kusoshi ne a kulle-har sai ya kasa a kan site saboda rufin blistered, ko abokin ciniki koka game da hex kai launuka fade zuwa ruwan hoda bayan watanni shida a cikin wani bakin teku sito. Gaskiyar tambaya ba shine ko launin zinc plating wani sabon abu ne, amma ko yana da dorewa, mai amfani wanda ke motsa allura akan sharar gida, sake yin aiki, da kuma rayuwa. Bari mu kwasfa baya yadudduka.

Lalacewa da Shakku nan take

Farantin yana da sauƙi: ɗauki ma'auni tutiya-plated flange kulle, gudanar da shi ta hanyar tsarin jujjuyawar chromate, kuma ku sami kewayon launuka - shuɗi, rawaya, baki, bakan gizo. Yana da don ganewa, juriya na lalata, wani lokacin har ma da kyan gani a aikace-aikacen gine-gine da aka fallasa. Matsakaicin dorewa yawanci ana fuskantar: tsawon rayuwa yana nufin ƙarancin maye gurbin, ƙarancin amfani da kayan. Amma a nan ga rub. Standard yellow zinc dichromate ya kasance a kusa da shekaru. Kira shi 'kore' saboda yana iya daɗe yana daɗaɗawa idan tsarin plating ɗin kansa bai samo asali ba daga tushen sa mai ƙarfi.

Na tuna wani tsari daga mai kaya a ƴan shekarun baya, kyawawan ƙullun shuɗi masu kyau don tsarin hawan hasken rana. Rubutun launi an yi nufin sauƙaƙe shigarwa don yankuna daban-daban na juzu'i. Yayi kyau a cikin akwatin. Amma aikin ya kasance a cikin yanki mai girman UV. A cikin watanni 18, shuɗin shuɗi a kan kawunan flange da aka fallasa ya ɓace sosai, yayin da kusoshi na zinc mara launi kusa da su kawai ya nuna lalatawar fari. Launi bai gaza ba da tsari ba, amma manufarsa—ganewar gani na dindindin—ya yi. Wannan ba dorewa ba ne; wanda ke shirin ɓatar da siffa.

Don haka, ɓangaren ƙirar dole ne ya zama fiye da launi. Yana da game da prep na substrate, da plating sunadarai, da kuma bayan jiyya. Wasu sabbin matakai na chromate trivalent, waɗanda ba su da guba fiye da hexavalent, na iya ba da kwanciyar hankali mai launi. Amma mannewa da aikin lalata, gaskiya, ana iya bugawa ko rasa. Kuna cinikin wasu kayan 'warkar da kai' na kayan kwalliyar zinc na gargajiya don wannan launi mai launi. Daidaitawa ne, ba ingantaccen haɓakawa ba.

2

Inda Dorewa Ya Samu Gaskiya: Tsari da Dabaru

A gare ni, wani ingantaccen labari mai dorewa ya fito a cikin dabaru da kaya. Wannan shi ne inda kamfani ke so Hannun Zetai Mretering co., Ltd. ya zo a hankali. An kafa shi a Yongnian, zuciyar samar da fastener na kasar Sin, ma'aunin su yana ba da damar wani abu da ƙananan kantuna ba za su iya yin aiki yadda ya kamata ba: sadaukarwa, ingantattun layin plating. Lokacin da kuka ziyarci kayan aiki irin wannan (shafin su a zitaifaseners.com yana ba da ma'anar aikin), kuna ganin yuwuwar rage sawun muhalli a kowane kusoshi.

Ka yi tunani game da shi. Idan aikin ƙirƙira a Turai yana buƙatar M12, M16, da M20 flani fals a cikin rawaya don taro ɗaya da baƙar fata don wani, yana samo su masu launin fari daga babban sikelin, masana'anta masu haɗaka sun yanke kan jigilar kayayyaki da yawa, batches plating da yawa, da abin sarrafawa da marufi. Wurin Zitai kusa da manyan hanyoyin sufuri ba kawai wurin tallace-tallace ba ne; yana fassara zuwa ƙaƙƙarfan jigilar kaya. Kwantena ɗaya mai da aka riga aka gama, na'urori masu launi masu launi daga babban tushe na samarwa yana da ƙarancin farashin carbon fiye da samar da kusoshi daga wuri ɗaya da aika su zuwa faranti daban-daban na gida.

Ainihin gwajin yana cikin sarrafa tankin plating. Manyan masana'anta suna da mafi kyawun harbi a kiyaye daidaiton sinadarai, magance ruwan sha da kyau, da dawo da karafa. Wannan shine ribar ɗorewa ta tsarin da ba ta da alaƙa da launi kanta amma duk abin da ya shafi yadda ake samar da kullin launi. Karamin, shago maras inganci yana zubar da sharar chromium hexavalent shine maganin dorewa, ba tare da la'akari da yadda ake siyar da launin samfurin 'kore' na ƙarshe ba.

Hanyoyin Rashin Ganewa da Duban Filin

Bari mu yi magana game da inda waɗannan kusoshi za su iya ba ku kunya. Haɗaɗɗen hydrogen wani abu ne na al'ada tare da kowane nau'i mai ƙarfi mai ƙarfi na lantarki, amma tsarin canza launi yana ƙara wani nau'in yuwuwar damuwa. Idan murfin chromate ya yi kauri sosai don neman launi mai ban sha'awa, zai iya zama raguwa da micro-crack. Na ga wannan a ƙarƙashin na'urar hangen nesa akan wasu jajayen kusoshi waɗanda suka gaza da wuri a cikin aikace-aikacen injina. Fashewa sun zama wuraren farawa don lalata, suna cin nasara ga dukan manufar.

Wani ciwon kai mai amfani shine daidaitawar galvanic. Launi mai launin chromate yana canza ƙarfin lantarki. A cikin taro tare da ɓangarorin aluminium, madaidaicin kullin zinc zai iya zama lafiya, amma mai launi tare da tsari daban-daban na iya ƙara lalata galvanic na aluminum. Kuna buƙatar sanin ainihin ƙayyadaddun magani na bayan-plating, ba wai kawai ɗauka cewa 'zinc tare da rini ba ne.' Mun koyi wannan hanya mai wuya a kan aikin majalisar ministocin waje. Baƙaƙen baƙar fata sun yi kyau, amma ƙaƙƙarfan aluminium ɗin da ke kewaye da su ya nuna mummunan rami a cikin shekaru biyu. Filayen tukwane na zinc da ke kan wannan panel bai haifar da wannan batu ba.

Sa'an nan akwai juzu'i daidaito. Ƙaƙwalwar flange mai launi tare da santsi, kauri mai kauri akan saman mai ɗaukar hoto na iya samun bambancin juzu'i fiye da na tutiya na fili. Idan masu sakawa ba su sani ba kuma suna amfani da ƙimar juzu'i iri ɗaya, zaku iya samun ƙasa-ƙasa ko, mafi muni, wuce gona da iri da cire zaren. Yana da ƙarami, amma akan layi tare da dubban haɗe-haɗe, mafarki ne mai kula da inganci. Maganin sau da yawa shine kakin zuma ko rigar mai, wanda sannan ya canza kamanni kuma yana iya jawo datti. Yana da ɓarke ​​​​na ƙananan sasantawa.

Harka a cikin Point: Aikace-aikacen Dama

Don haka, akwai wuri mai dadi? Lallai. Inda mai launi zinc-plated Fasteners shine a cikin sarrafawa, wuraren da ba a bayyana su ba inda ake amfani da fa'idarsu ta biyu. Ƙarfe na cikin gida tare da ƙwanƙwasa masu launi don ƙididdige nauyin kaya daban-daban ko jadawalin dubawa. Rukunin gine-ginen da aka riga aka kera inda ake ganin bolts kuma launi wani yanki ne na ƙirar ƙira, amma an kiyaye su daga yanayin kai tsaye da UV.

Na tuna nasarar amfani da aka yi a cikin babban tsarin tara kayan ajiya. Abokin ciniki ya yi amfani da shuɗi don haɗin takalmin gyaran kafa da rawaya don daidaitattun katako. Ya yi bincike-bincike bayan shigarwa da gyare-gyaren gaba cikin sauri. Yanayin ya bushe, na cikin gida, tare da yanayin zafi. Waɗancan ƙullun za su iya wuce tsarin tarawa kanta tare da kulawa da sifili. A cikin wannan yanayin, launi yana ƙara ƙimar gaske, mai ɗorewa kuma yana hana kurakurai - ƙirar ƙira ce mai dorewa.

Makullin shine sarrafa tsammanin abokin ciniki. Ba ku sayar da su a matsayin maye gurbin kai tsaye don ƙwanƙwasa galvanized mai zafi a cikin injin tsabtace ruwa. Kuna sanya su azaman mai wayo, gamawa mai ƙima don ingantaccen yanayi. Da'awar dorewarsu tana da ƙarfi lokacin da suka hana haɗuwa, rage lokacin shigarwa, kuma ana samar da su a cikin ingantacciyar sarkar samar da sarrafawa wanda ke rage sharar hanya. Launi da kansa ba sabon abu ba ne; da tunani aikace-aikace na gama bangaren ne.

Kammalawa: Kayan aiki, Ba juyin juya hali ba

Kunna wannan, ƙwanƙolin flange mai launin zinc-plated samfuri ne mai ɓarna. Kiran su da '' ci gaba mai dorewa '' kai tsaye ya wuce gona da iri. Su ne a zaɓi mai dorewa kawai a ƙarƙashin ƙayyadaddun ƙayyadaddun ƙayyadaddun yanayi: lokacin da tsarin plating ya kasance mai tsabta da inganci, lokacin da tsarin launi ya kasance tsayayye kuma mai dorewa ga rayuwar sabis ɗin da aka yi nufi, kuma lokacin da launi ya ba da fa'ida mai mahimmanci, mai dorewa wanda ke rage sharar gida ko kuskure a cikin layi.

Ana buƙatar masana'antar ta wuce hotunan kasida masu haske. Ainihin aikin yana cikin takaddun bayanan - sa'o'in juriya na lalata a cikin gishiri, ƙimar kwanciyar hankali UV, ƙididdige ƙima don takamaiman ƙarewa. Masu kera irin su Handan Zitai suna da ikon fitar da wannan ta hanyar ba da cikakkun bayanai dalla-dalla da kuma matsawa zuwa mafi ƙarancin matakai a matsayin ma'auni, ba ƙima ba.

A ƙarshe, wani kayan aiki ne. Mai fa'ida idan aka yi amfani da shi tare da gwaninta da fayyace idanu na gazawarsa. Bidi'a ba a cikin kullin da kake riƙe a hannunka ba, amma a cikin sanin lokacin amfani da shi, da lokacin tafiya. Wannan shawarar, dangane da gogewa da darussa masu wahala, shine ainihin abin da ke gina aiki mai dorewa.