Dacromet Flange Bolts-Bayyanawar Fasaha 

1. Gabatarwa

Dacromet flange bolts su ne babban ƙarfi fasteners cewa hada flanged kai zane tare da ci-gaba tutiya-aluminum flake shafi da aka sani da Dacromet (wanda kuma ake kira zinc-chromium shafi). Haɗe-haɗen flange a ƙarƙashin kai yana rarraba nauyin matsawa daidai gwargwado, yana haɓaka saman ƙasa, yana inganta juriya ga sassautawar girgiza, kuma akai-akai yana kawar da buƙatar mai wanki daban.

An haɓaka shi a cikin 1970s azaman madadin babban aiki ga na'urar lantarki na yau da kullun da suturar cadmium, fasahar Dacromet ta zama jiyya mai fa'ida don Grade 8.8, 10.9 da 12.9 bolts. Ana amfani da waɗannan kayan ɗamara da yawa a cikin chassis na motoci da manyan tarurrukan wutar lantarki, tsarin injin turbine, injinan noma da gini, kayan sarrafa sinadarai, kayan aikin ruwa da kayan aikin ƙarfe na waje inda juriyar lalata na dogon lokaci ke da mahimmanci.

Hoto A. Bayyanar wakilci na Dacromet mai rufi hex flange bolts (ƙarfe azurfa-launin toka).

2. Menene Dacromet Coating?

Dacromet shi ne wanda ba electrolytic, ruwa tushen inorganic shafi kunshi zinc flakes, aluminum flakes da chromium mahadi (ko chromium-free binders) tarwatsa a cikin wani musamman matrix. Ana amfani da murfin ta hanyar dip-spin, spray ko hanyoyin dip-magudanar ruwa sannan a warke ta hanyar zafi a kusan 300-320 ° C. A lokacin warkar da wani m, Multi-mai lebur tsarin lamellar da aka kafa wanda lokaci guda samar da shinge kariya da hadaya (cathodic) kariya na karfe substrate.

Yawan kaurin fim ɗin busassun ya bambanta daga 5 zuwa 12 μm. Duk da bakin ciki, rufin yana ba da sa'o'i ≥1,000 akai-akai (yawanci awanni 1,200-2,000 don ingantaccen tsarin) na kariya a gwajin fesa gishiri mai tsaka-tsaki (ASTM B117 / ISO 9227) kafin bayyanar tsatsa - kusan sau 7 zuwa 10 na aikin daidaitaccen kauri na electro-galvanizing.

3. Mabuɗin Amfani

• Juriya na Musamman na Lalata: ≥1,000-1,500 h gishiri fesa hankula; bambance-bambancen ayyuka masu girma sun wuce 2,000 h.
• Haɗarin Haɗaɗɗen Sifirin Hydrogen: Tsarin ba ya amfani da pickling na acid ko electrolysis, yana mai da shi lafiya ga maƙarƙashiya mai ƙarfi (Grade 10.9+).
• Ƙarfin Maɗaukakin Zazzabi: Ana kiyaye aikin kariya har zuwa kusan 300 ° C.
• Kyakkyawan Gudanar da Girman Girma: Sirin siriri uniform fim yana kiyaye zaren lissafi; babu buƙatar girman goro.
• Fa'idodin Zane Flange: Har ma da rarraba kaya, rage matsa lamba da kuma inganta juriya na girgiza.
• Bayanin Muhalli Mai Kyau: Chemistry na tushen ruwa tare da aikace-aikacen rufaffiyar madauki da rage rafukan sharar gida.

4. Kwatancen Ayyuka tare da Rufin Gargajiya

5. Manufacturer & Rufe Tsarin

Tsarin tsari na al'ada ya ƙunshi: tsabtace alkaline da ragewa; tarwatsa injina ko fashewar fashewar abubuwa (an guje wa ɗaukar acid da gangan); aikace-aikacen slurry na zinc-flake ta hanyar tsoma-spin ko fesa; thermal curing a 300-320 ° C; aikace-aikace na zaɓi na rigar mai mai mai ko kariya; da sanyin ƙarshe da dubawa. Ana yawan amfani da aikace-aikacen rigar gindi guda biyu masu jere don isa ga kauri da ake buƙata da matakin aiki. Mahimman sarrafawa sun haɗa da tsaftar ƙasa, slurry danko, juzu'i mai jujjuyawa, daidaiton zafin tanderu da tabbatarwa-nauyi na ƙarshe.

6. Aikace-aikace na yau da kullun

• Motoci & Sufuri: Chassis, dakatarwa, injina da tsarin birki da aka fallasa ga gishirin hanya, zafi da hawan hawan zafi.
• Makamashin Iska: Hasumiya da kusoshi na turbines na kan teku da na teku waɗanda dole ne su jure bayyanar shekaru da yawa zuwa yanayin saline tare da ƙarancin kulawa.
• Aikin Noma & Gina: Kayan aiki da ke aiki a cikin mahalli masu ɗauke da danshi, takin mai magani, ƙazanta ƙasa da yanayin waje.
• Masana'antu & Tsari: Haɗin flange da kayan ɗamara a cikin tsire-tsire masu sarrafa ruwa mai lalata ko yanayi.
• Kayan Aiki & Ruwa: Gada, hasumiya mai watsawa, tsarin bakin teku, kayan aikin tashar jiragen ruwa da dandamali na ketare.

Hoto 4. Ƙarfin aikin dangi na manyan halayen Dacromet.

7. Matsayi, Makiyoyi & Jagorar Zaɓi

Ma'auni mai girma da aka saba amfani da su sun hada da DIN 6921 da ISO 4162 (hexagon flange bolts) tare da daidaitattun ka'idoji na kasa kamar GB/T 5787. Kayan kayan aikin injiniya mafi akai-akai ana ba da su tare da murfin Dacromet sune 8.8, 10.9 da 12.9 bisa ga ISO 898-1. Ana yin ƙayyadaddun aikin sutura ta al'ada ta hanyar ɗaukar nauyi (Grade A ≈ 24 g/m², Grade B ≈ 36 g/m²) ko ta ƙaramin adadin sa'o'in fesa gishiri. Yawancin OEM na kera motoci da ƙayyadaddun ƙayyadaddun tsari sun fi son tsarin tuƙin-flake a sarari don ƙugiya mai ƙarfi daidai saboda suna kawar da haɗarin haɓakar hydrogen.

Nasihun zaɓi na aiki:

1. Zaɓi nau'in aikin shafa bisa ga nau'in lalata muhalli da ake tsammanin (ISO 9223 C3-C5 ko mafi girma).
2. Don Grade 10.9 da sama, saka Dacromet ko daidai abin rufe fuska-flake maimakon na al'ada.
3. Lokacin da daidaiton jujjuyawar juzu'i ko aiki mai ɗaurewa da yawa yana da mahimmanci, nemi jaket ɗin da ke da juzu'i mai sarrafawa (madaidaicin ƙima na gogayya 0.10-0.18).
4. Sarrafa kuma shigar da kusoshi a hankali don guje wa lalacewar inji ga fim ɗin mai laushi mai laushi.

8. Kammalawa

Dacromet flange bolts suna ba da ingantacciyar ma'auni na babban ƙarfin injina, kariyar lalata na dogon lokaci, daidaiton girman da amincin aiki. Ta hanyar kawar da haɗarin haɓakar hydrogen da isar da rayuwar sabis na shekaru masu yawa har ma a cikin mahalli masu tayar da hankali, suna rage farashin kiyayewa da haɓaka amincin tsarin a cikin sassan kera motoci, sabuntawa-makamashi, masana'antu da abubuwan more rayuwa. Bayanin ƙayyadaddun ƙayyadaddun ma'aunin injin da ake buƙata, daidaitaccen ma'auni, ajin aikin shafa da kowane buƙatun riguna suna tabbatar da cewa masu ɗaure za su yi kamar yadda aka yi niyya cikin rayuwar sabis ɗin su.