Jiyya na saman Fasteners: Cikakken Jagorar Fasaha

Kusan duk na'urorin kasuwanci ana kera su ne daga karfen carbon, gami da karfe, ko bakin karfe. Ko da lokacin da aka yi amfani da kayan da ba su jure lalata ba, jiyya na saman ƙasa suna da mahimmanci don haɓaka dorewar kusoshi da goro a cikin mahalli masu tayar da hankali. Wannan labarin yana binciko sutura na gama-gari da aikace-aikacen su, yana ba injiniyoyi da masana'antun da abubuwan da za su iya aiki don ingantaccen aikin mai ɗaure.

1. Electroprated Zinc (Zinc Plating)

Electroplated zinc shine rufin da aka fi amfani da shi don kayan ɗaurin ƙarfe na kasuwanci saboda ingancin sa da tsadar kayan sawa (akwai cikin baƙar fata ko zaitun). Koyaya, yana ba da matsakaicin juriya na lalata, yawanci yana ɗaukar awanni 72 a gwajin feshin gishiri mai tsaka tsaki. Sealants na musamman na iya tsawaita wannan zuwa 200+ hours, amma a 5-8 sau farashin.

Mahimmin ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun iskar hydrogen ke haifar da rauni mai ƙarfi (maki 10.9 da sama). Yin burodi bayan-plating na iya rage yaduwar hydrogen, amma ba a cika aiwatar da tsarin ba saboda wahalar aiki da farashi. Bugu da ƙari, masu ɗauren tukwane na zinc suna nuna madaidaicin madaidaicin juzu'i-zuwa-ɗorawa, wanda ya sa ba su dace da haɗin gwiwa mai mahimmanci ba. Maganin shafawa bayan jiyya na iya inganta daidaito amma ƙara farashi.

2. Fosfat

Phosphating yana ba da madadin farashi mai inganci ga tukwane na zinc, kodayake yana da ƙarancin juriya na lalata. Aiki sosai ya dogara da ingancin mai bayan jiyya: daidaitaccen mai yana samar da sa'o'i 10-20 na juriya na feshin gishiri, yayin da mai mai ƙima ya ƙara wannan zuwa sa'o'i 72-96 a sau 2-3 farashin.

Nau'o'i biyu sun mamaye amfani da masana'antu:

• Zinc Phosphating: Yana ba da ingantaccen mai don sauƙin haɗuwa.

• Manganese Phosphating: Excels a cikin juriya na lalata, sa juriya, da kwanciyar hankali na thermal (107-204 ° C / 225-400 ° F).

Ana fifita fitattun filayen phosphated don daidaiton ƙarfin juzu'i-zuwa-zurfin ɗaukar nauyi, yana mai da su manufa don majalisu masu mahimmanci kamar abubuwan injin (misali, sanduna masu haɗawa, ƙusoshin silinda) da haɗin ginin ƙarfe. Musamman ma, phosphating yana guje wa haɓakar hydrogen, yana mai da shi zaɓin tsoho don ƙwanƙwasa ƙarfi mai ƙarfi (jin 10.9+).

3. Black Oxide

Black oxide, haɗe tare da murfin mai, zaɓi ne mai dacewa da kasafin kuɗi don masu ɗaurin masana'antu. Duk da yake abin sha'awa na gani lokacin da aka mai da shi, juriyar lalatarsa ​​ba ta da yawa - yana dawwama cikin sa'o'i 3-5 kawai a gwajin feshin gishiri da zarar mai ya ragu. Matsakaicin karfin juyi ba shi da kyau, amma yin amfani da mai a lokacin taro na iya rage wannan. Amfaninsa na farko shine a cikin aikace-aikacen marasa mahimmanci, masu rahusa.

4. Cadmium Plating

Cadmium plating yana ba da juriya na musamman na lalata, musamman a cikin yanayin ruwa. Duk da haka, yawan gubarsa da farashin maganin ruwa ya sa ya fi sau 15-20 tsada fiye da plating na zinc. An iyakance amfani da shi ga ɓangarorin ƙwararrun kamar na'urorin mai na teku da jiragen ruwa na ruwa, inda aikin ya tabbatar da kashe kuɗi.

5. Chromium Plating

Plating na Chromium yana ba da roƙon ado, tauri, da juriya mai zafi (har zuwa 650°C/1200F). Koyaya, karɓar karɓar masana'anta yana iyakance saboda daidaiton farashi tare da bakin karfe da ci gaba da haɗarin haɓakar hydrogen. Pre-plating jan karfe da nickel yadudduka suna da mahimmanci don kariya ta lalata.

6.Silver & Nickel Plating

• Plating Azurfa: Yana aiki azaman mai mai ƙarfi kuma yana jure matsanancin yanayin zafi (har zuwa 871°C/1600°F), yana hana galling a aikace-aikacen zafi mai zafi (misali, masu ɗaurin sararin sama). Matsalolin tsada galibi suna iyakance amfani da shi zuwa goro ko ƙananan kusoshi.

• Plating nickel: Haɗa juriya na lalata da ƙarfin lantarki, manufa don abubuwa kamar tashoshin baturi.

7. Hot-Dip Galvanizing

Galvanizing mai zafi-tsoma ya haɗa da nutsar da kayan ɗamara a cikin tutiya narkakkar, samar da kauri mai kauri mai jure lalata (15-100 μm). Duk da haka, kauri mara daidaituwa yana dagula zaren dacewa, yana buƙatar sake yin aikin zaren bayan-galvanizing ko ƙwaya mai girman gaske-dukansu suna daidaita ƙarfi. Hakanan tsarin yana da haɗari ga muhalli saboda sharar zinc da hayaƙi. Musamman ma, bai dace da masu ɗaure aji na 10.9+ ba saboda haɗarin zafin zafi.

8. DacrometTufafi

Dacromet®, yana ba da kariya iri ɗaya ta hanyar matrix zinc-aluminum. Suna kawar da haɓakar hydrogen kuma suna ba da daidaiton juzu'i mafi girma, yana sa su dace da ƙarfin ƙarfi, aikace-aikacen lalata.

9.Wasu

Musamman kayan shafa kamar Magni (MAGNI), Ruspert (RUSPERT), da Tiodize's aluminum/Teflon hybrids suna biyan buƙatun alkuki, suna ba da ingantaccen juriya, lubrication, ko rashin kuzarin sinadarai.

Jiyya na Fannin Karfe don Maɗaurin Karfe

• Ragewa: Mahimmanci don cire man masana'anta waɗanda ke lalata ayyuka da ƙayatarwa.

• Passivation: Yana haɓaka juriya na lalata da haske na sama ta hanyar nutsar da kayan ɗamara a cikin maganin nitric ko citric acid.

• Electroplating: Nickel ko tutiya na zaɓi na zaɓi yana haɓaka kamanni ko aiki, kodayake juriyar lalatawar bakin ƙarfe galibi yana sa wannan ba dole ba ne.

Kammalawa

Zaɓin mafi kyawun jiyya na saman yana buƙatar daidaita juriya na lalata, aikin injiniya, ƙa'idodin muhalli, da farashi. Daga tutiya mai amfani da lantarki don majalissar kasafin kuɗi zuwa rufin yaɗuwar zafi don mahimman tsarin manufa, kowace hanya tana magance takamaiman ƙalubale. Dole ne injiniyoyi su ba da fifikon dacewa tare da yanayin aiki—ko yana fama da fallasa ruwan gishiri, yanayin zafi, ko nauyi mai ƙarfi—domin tabbatar da dogaro mai ƙarfi da tsawon rai.

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