Dacromet Hexagonal Bolts-Madaidaicin Gabatarwa zuwa Babban Ayyukan Lalata-Masu Tsayawa 

2. Menene Dacromet Coating?

Dacromet wani tsarin sutura ne na inorganic wanda ya ƙunshi flakes na tutiya mai kyau, foda na aluminum, da mai ɗaure tushen chromium (ko chromium-free). Ana amfani da shi azaman tarwatsawar ruwa kuma ana warkewa a kusan 300°C, yana samar da abin ɗaure amorphous wanda ke haɗa ɓangarorin ƙarfe masu rufi cikin ƙaramin fim ɗin kariya. Matsakaicin kauri mai kauri shine kawai 4-8 μm - ya fi bakin ciki nesa fiye da galvanizing mai zafi (50-80 μm) - duk da haka yana ba da kariya ta lalata. Wurin da aka gama yana da nau'in nau'in azurfa-launin toka na ƙarfe.

Babban abun da ke ciki: flakes na zinc (60-80%) don kariyar hadaya, foda aluminum (5-15%) don ingantaccen kaddarorin shinge, mai ɗaure inorganic wanda ke wuce saman, da ruwa mai narkewa a matsayin matsakaici mai ɗaukar hoto.

3. Mahimman Amfanin Dacromet Hexagonal Bolts

3.1 Na Musamman Juriya na Lalata

A 4-8 μm Dacromet shafi yawanci jure fiye da 1,000-1,200 hours na tsaka tsaki gishiri gwajin gwajin (ASTM B117) ba tare da ja ja-kimanin 7 zuwa 10 sau aikin electro-galvanizing (100-300 hours). Maki mai girma na iya wuce sa'o'i 2,000. Tsarin flake mai nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i) shamaki da kuma anode na hadaya.

3.2 'Yanci daga Haɗawar Hydrogen

Wutar lantarki ta al'ada ta ƙunshi ɗaukar acid da electrolysis, wanda zai iya shigar da hydrogen zuwa cikin ƙarfe mai ƙarfi kuma yana haifar da jinkirin karaya-musamman mahimmin mahimmanci ga bolts na 10.9 da 12.9. Tsarin Dacromet yana amfani da tsabtace injin kawai da aikace-aikacen da ba na lantarki ba, yana kawar da haɗarin haɓakar hydrogen gaba ɗaya. Wannan ya sa ya zama abin da aka fi so don aminci-mahimmancin kusoshi hexagonal mai tsayi mai tsayi.

3.3 Fitaccen Juriya mai zafi

Rubutun Dacromet sun kasance masu ƙarfi da kariya a ci gaba da yanayin zafi har zuwa 300 ° C. Tufafin zinc na al'ada sun fara raguwa sama da 70-100 ° C kuma suna iya bawo a 200-300 ° C. Wannan kwanciyar hankali na thermal ya sa Dacromet hexagonal bolts ya dace don ɗakunan injin, tsarin shaye-shaye, da yanayin yanayin zafin masana'antu.

3.4 Daidaita Girma da Daidaituwar Zaren

Maɗaukakin-bakin ciki, rufin tsari ba ya canza girman zaren ko diamita mai mahimmanci. Kwayoyi suna taruwa a hankali ba tare da matsananciyar girma da ake buƙata sau da yawa bayan galvanizing mai zafi ba. Har ila yau rufin yana ratsa ramuka masu zurfi, matsuguni, da filaye na ciki waɗanda lantarki ba zai iya dogaro da dogaro ba. Bugu da ƙari, fim ɗin yana ɗaure da ƙarfi ga ƙwanƙwasa kuma yana karɓar suturar ƙwayoyin cuta na gaba ko fenti tare da mannewa mai kyau.

4. Tsarin sarrafawa da Rufewa

Ana samar da kusoshi mai hexagonal daga matsakaici-carbon ko ƙarfe mai ƙarfe ta hanyar sanyi ko ƙirƙira mai zafi, biye da zaren mirgina da magani mai zafi don cimma ƙimar dukiyar da ake buƙata (mafi yawanci 8.8, 10.9, ko 12.9). Bayan tsaftacewa sosai, ana amfani da murfin Dacromet kamar haka:

1. Shirye-shiryen saman: Tsabtace alkaline da goge goge na inji (babu tsinken acid).

2. Shafi aikace-aikace: Nitsewa-spin nutsewa don babban ɗauri ko fesa ga manyan sassa; wuce haddi shafi cire ta centrifugation.

3.Cikin: Yin burodi a kusan 300-320 ° C na minti 15-30 don samar da tsarin flake mai kariya.

4.Optional topcoat: Ana iya amfani da mai siti ko mai mai don haɓaka juriya na lalata da sarrafa juzu'i.

5. Aikace-aikace na yau da kullun

Dacromet hexagonal bolts an ƙayyade ko'ina inda dogara na dogon lokaci a ƙarƙashin lalata ko yanayin zafi yana da mahimmanci:

Mota: Chassis, dakatarwa, tsarin birki, kayan aikin injin, da sassan jikin da aka fallasa ga gishirin hanya.

Ƙarfin iska & watsa wutar lantarki: Tumbun hasumiya da na'urorin ɗamara a kan na'urorin sarrafa iska da na bakin teku.

Marine & bakin teku: Kayan aikin bene da tsarin dandamali wanda aka fallasa ga ci gaba da feshin ruwan gishiri.

Gina & kayan more rayuwa: Haɗin firam ɗin ƙarfe, abubuwan gada, da haɗin ginin waje.

Hanyar jirgin ƙasa, injina masu nauyi, sararin samaniya & tsaro: Mahimman abubuwan ɗaure masu ƙarfi waɗanda ke ƙarƙashin girgiza, yanayi, da damuwa na inji.

6. Kwatanta da Rufin Gargajiya

Maɓallin bambance-bambancen aiki yana nuna dalilin da yasa aka fi son Dacromet don manyan kusoshi mai girman aiki:

Kauri mai rufi: Dacromet 4-8 μm |  Electro-galvanizing 5-15 μm |  Hot tsoma galvanizing 50-80 μm

Juriya na fesa gishiri (babu jajayen tsatsa): Dacromet ≥1,200 h |  Electro-galvanizing 100-300 h |  Hot-tsoma 500-800 h

Haɗarin haɓakar hydrogen: Dacromet - Babu |  Electro-galvanizing – High |  Hot-tsoma - Matsakaici

Juriya mai zafi: Dacromet har zuwa 300°C |  Electro-galvanizing ≤100°C |  Yanayin zafi ≤200 ° C

Ya dace da zaren: Dacromet yana kula da daidaitattun haƙuri; zafi-tsoma galvanizing sau da yawa na bukatar thread diyya.

7. Ma'auni, maki, da ƙayyadaddun bayanai

Dacromet hexagonal bolts ana ƙera su zuwa ƙa'idodin duniya waɗanda suka haɗa da ISO 4014/4017, DIN 931/933, ANSI/ASME B18.2.1, da GB/T 5782/5783. Azuzuwan kadarorin gama gari sune 4.8, 8.8, 10.9, da 12.9 (metric) ko Grade 5 da Grade 8 (inch). Kayayyakin sun haɗa da ƙarfe na carbon da ƙarfe irin su 35CrMo, 40Cr, da 42CrMo. Matsakaicin girman kewayon shine M5 zuwa M36 (mafi girma masu girma da ake samu don aikace-aikace na musamman), a cikin tsarin sikeli-cikakken zaren ko ɓangarori. Yawancin OEMs na kera motoci suna lissafin Dacromet ko makamancin suttura-flake kamar yadda aka amince da su don manyan kayan ɗamara mai ƙarfi.

8. La'akarin Muhalli

Tsarin Dacromet na gargajiya sun ƙunshi chromium hexavalent a cikin ɗaure. Yayin da murfin da aka warke ya tsaya tsayin daka kuma tsarin yana haifar da ƙarancin ruwa fiye da na lantarki, ƙa'idodin muhalli sun haifar da haɓaka hanyoyin da ba su da chromium kamar Geomet® da sauran tsarin flake na zinc na zamani. Waɗannan suna riƙe ainihin fa'idodin aikin Dacromet yayin saduwa da ƙaƙƙarfan buƙatun RoHS da REACH.

Gabaɗaya, ana ɗaukar tsarin Dacromet fiye da abokantaka na muhalli fiye da na al'ada na electro-galvanizing saboda yana kawar da baho acid, mafita na cyanide, da kuma babban jiyya na ruwa. Har ila yau, sinadarai na tushen ruwa yana haifar da ƙaramar fili mai canzawa (VOC).

9. Kammalawa

Dacromet hexagonal bolts suna ba da ingantaccen aiki don aikace-aikacen da ke buƙatar amincin injiniyoyi da kariya ta lalata na dogon lokaci. Haɗin su na rufin bakin ciki mai ƙarfi amma mai inganci, cikakken 'yanci daga haɓakar hydrogen, kyakkyawan juriya na zafi, da daidaitaccen iko yana sanya su mahimmanci musamman ga manyan kayan ɗamara a cikin abubuwan kera motoci, makamashi, ruwa, da sassan injiniyan tsarin.

Yayin da ka'idojin muhalli ke tasowa, chromium-free chromium-flake coatings da aka samu daga ainihin fasahar Dacromet na ci gaba da faɗaɗa kewayon zaɓuɓɓukan da suka dace. Ko an kayyade shi azaman Dacromet na gargajiya ko makamancin zamani, waɗannan rufaffiyar kusoshi masu rufin hexagonal suna ba da tabbataccen tsayin daka wanda ke haɓaka rayuwar sabis kuma yana rage farashin kulawa a cikin lalata da yanayin zafi mai zafi. Don haɗin gwiwa mai mahimmanci inda gazawa ba zaɓi ba ne, Dacromet hexagonal bolts sun kasance ɗayan ingantattun amintattun hanyoyin haɗin gwiwa da fasaha da ake samu a yau.