Dacromet Hexagonal Bolts-Hordhac Dhameystiran oo ku saabsan Xiijiyeyaasha Wax-qabadka Sare ee Daxalka 

2. Waa maxay Dakrometka

Dacromet waa nidaam daahan inorganic ah oo ka kooban jeexjeexyada zinc aadka u fiican, budada aluminium, iyo xidhe ku salaysan chromium (ama chromium-free). Codsaday firidhsanaan biyo-ku-salaysan oo lagu daaweeyay ku dhawaad ​​300°C, waxay samaysaa xidhidh aan caadi ahayn oo isku xidha jajabyo bir ah oo is dulsaaran oo isu rogaya filim difaac adag. Dhumucda dahaarka caadiga ah waa 4-8 μm oo kaliya—oo aad uga khafiifsan galvanizing-ku-kulul (50-80 μm) -hase ahaatee waxay bixisaa ilaalin daxaleed sare leh. Oogada dhammaatay waxay leedahay muuqaal macdan ah oo qalin-cawlan isku mid ah.

Halabuurka asaasiga ah: jajabka zinc (60-80%) ee ilaalinta allabaryada, budada aluminium (5-15%) ee guryaha xannibaadda ee la xoojiyey, xidhe aan organic ahayn oo dulmaraya oogada, iyo biyaha fuuqbaxay sida dhexdhexaadiyaha.

3. Faa'iidooyinka Muhiimka ah ee Dacromet Hexagonal Bolts

3.1 Iska caabin Daxalka Gaarka ah

Daahan 4-8 μm Dacromet wuxuu caadi ahaan u adkeysanayaa in ka badan 1,000-1,200 saacadood ee baaritaanka buufinta milixda dhexdhexaadka ah (ASTM B117) iyada oo aan lahayn miridh cas-qiyaastii 7 ilaa 10 jeer waxqabadka electro-galvanizing (100-300 saacadood). Darajooyinka waxqabadka sare waxay dhaafi karaan 2,000 saacadood. Qaab dhismeedka lakabyada badan wuxuu u shaqeeyaa sida xannibaad jireed iyo anode allabari, oo bixisa ilaalin waqti dheer ah xeebaha, warshadaha, iyo jawiga cusbada.

3.2 Xorriyadda ka dhalata Hydrogen Embrittlement

Electroplating dhaqameedku waxa uu ku lug leeyahay qaadashada aashitada iyo korantada, kaas oo soo bandhigi kara hydrogen galay birta xoogga badan oo sababi karta jab jaban oo daah-gaar ahaan muhiim u ah Fasalka 10.9 iyo 12.9 bolts. Habka Dacromet wuxuu isticmaalaa kaliya nadiifinta farsamada iyo codsiga aan elektaroonigga ahayn, oo gebi ahaanba meesha ka saaraya khatarta qallafsanaanta hydrogen. Tani waxay ka dhigaysaa dahaarka la door biday ee badbaadada-muhiim u ah boolal-xaglaha sare ee cufan.

3.3 Iska caabbinta kulaylka ee aadka u wanaagsan

Dahaarka Dacromet waxay ahaanayaan kuwo deggan oo ilaalinaya heerkul joogto ah ilaa 300°C. Dahaarka zinc-ga caadiga ah waxay bilaabaan inay hoos u dhacaan in ka badan 70-100 ° C waxaana laga yaabaa inay diiraan 200-300 ° C. Xasiloonida kulaylka ayaa ka dhigaysa Dacromet boolal laba geesood ah oo ku habboon qaybaha matoorka, nidaamyada qiiqa, iyo jawiga heerkulka sare ee warshadaha.

3.4 Deganaanshiyaha cabbirka iyo waafaqsanaanta xadhigga

Dahaarka aadka u dhuuban ee iswaafaqsan si weyn uma beddelo cabbirrada dunta ama dhexroorka garoonka. Nutsku si habsami leh ayay isugu soo ururaan iyada oo aan la garaacin cabbirka weyn ee inta badan loo baahan yahay galvanization-kuleelka kadib. Dahaarka ayaa sidoo kale gala godadka qoto dheer, godadka, iyo sagxadaha gudaha ee koronto-sameeyayaashu aysan si kalsooni leh u ilaalin karin. Intaa waxaa dheer, filimku wuxuu si adag ugu xiraa substrate-ka wuxuuna aqbalaa dahaarka dabiiciga ah ee xiga ama rinji leh dhejis heer sare ah.

4. Habka wax-soo-saarka iyo dahaarka

Dhalooyinka laba geesoodka ah waxaa sida caadiga ah laga soo saaraa kaarboon dhexdhexaad ah ama bir daawaha ah iyada oo loo marayo ciwad qabow ama foorno kulul, oo ay ku xigto dunta duubista iyo daaweynta kulaylka si loo gaaro heerka hantida loo baahan yahay (caadi ahaan 8.8, 10.9, ama 12.9). Ka dib markii si fiican loo nadiifiyo, daaha Dacromet waxaa lagu dabaqaa sida soo socota:

1. Diyaarinta dusha sare: Nadiifinta alkaliinka iyo nadiifinta xoqidda (ma lahan aashito).

2. Codsiga dahaarka: Ku-dhigidda-spin-ku-xidhka-xidhayaasha badan ama ku buufinta qaybo waaweyn; dahaarka xad-dhaafka ah ayaa laga saaray centrifugation.

3.Cudurka: Dubi ugu yaraan 300-320 ° C 15-30 daqiiqo si aad u sameysid qaab-dhismeedka jilicsanaanta difaaca.

4.Jaakad sare oo ikhtiyaar ah: Shaabadeeyaha ama saliidaha ayaa lagu dabaqi karaa si kor loogu qaado iska caabinta daxalka oo loo xakameeyo isku-dheellitirka isku dhaca.

5. Codsiyada caadiga ah

Dhalooyinka laba geesoodka ah ee Dacromet ayaa si weyn loo qeexay halka isku halaynta muddada-dheer ee hoos timaada xaaladaha heerkulka sare ee ay lagama maarmaan tahay:

Baabuur: Chassis, ka joojinta, nidaamka biriiga, qalabka qaybta mishiinka, iyo qaybaha jidhka hoostiisa oo soo gaadhay milixda wadada.

Tamarta dabaysha & gudbinta tamarta: Dabooleyaasha Tower-ka iyo xidhayaasha qaab-dhismeedka ee marawaxadaha dabaysha ee xeebaha iyo xeebaha.

Badda & xeebaha: Qalabka sagxadda dhulka hoostiisa iyo qaab dhismeedka madal ay bannaanka soo dhigaan buufinta joogtada ah ee biyaha cusbada.

Dhismaha & kaabayaasha: Isku xirka qaabka birta, qaybaha buundada, iyo kala goysyada qaabdhismeedka dibadda.

Jidka tareenka, mishiinada culus, hawada sare iyo difaaca: Dhibcaha xidhitaanka xoogga sare ee ku xiran gariirka, cimilada, iyo walbahaarka farsamada.

6. Isbarbardhigga Dahaarka Dhaqanka

Kala duwanaanshaha waxqabadka muhiimka ah ayaa muujinaya sababta Dacromet loogu doorbiday boolal lix geesood ah oo heer sare ah:

Dhumucda dahaarka: Dacromet 4-8 μm |  Electro-galvanizing 5-15 μm |  Galvanizing-kulul 50-80 μm

Iska caabin buufin milix ah (ma jiro miridh cas): Dacromet ≥1,200 h |  Electro-galvanizing 100–300 h |  Ku-kulul 500-800 h

Khatarta khalkhalgelinta hydrogen: Dacromet - Midna  |  Electro-galvanizing – Sare  |  Ku-kulul - Dhexdhexaad

Iska caabbinta heerkulka sare: Dacromet ilaa 300°C |  Electro-galvanizing ≤100°C |  Ku-kulul ≤200°C

Ku haboon dunta: Dacromet waxay ilaalisaa dulqaadka saxda ah; galvanization-ku-kulul badanaa waxay u baahan tahay magdhow dun ah.

7. Heerarka, Darajooyinka, iyo Tilmaamaha

Dhalooyinka laba geesoodka ah ee Dacromet waxaa loo soo saaray heerarka caalamiga ah oo ay ku jiraan ISO 4014/4017, DIN 931/933, ANSI/ASME B18.2.1, iyo GB/T 5782/5783. Fasalada hantida guud waa 4.8, 8.8, 10.9, iyo 12.9 (metric) ama Fasalka 5 iyo Fasalka 8 (inji). Qalabka waxaa ka mid ah birta kaarboonka iyo birta daawaha ah sida 35CrMo, 40Cr, iyo 42CrMo. Baaxadda cabbirka caadiga ah waa M5 ilaa M36 (xajmiyada waaweyn ee loo heli karo codsiyada gaarka ah), oo ku jira qaabaynta dunta-buuxa ama qayb ahaan. Baabuur badan oo OEM ah ayaa taxaya Dacromet ama dahaarka zinc-flake u dhigma sida dhamaystirka la ansixiyay ee xirayaasha xoogga sare leh.

8. Tixgelinta Deegaanka

Hababka Dacromet ee dhaqameed waxay ka kooban yihiin chromium hexavalent oo ku jira xidhaha. Iyadoo daahan la daweeyay uu yahay mid xasiloon oo geeddi-socodku uu soo saarayo biyaha wasakhda ah oo aad uga yar marka loo eego koronto-samaynta, xeerarka deegaanku waxay horseedeen horumarinta beddelaadyo aan chromium-ka lahayn sida Geomet® iyo hababka kale ee casriga ah ee zinc-flake. Kuwani waxay hayaan faa'iidooyinka waxqabadka asaasiga ah ee Dacromet iyagoo buuxinaya shuruudaha RoHS iyo REACH adag.

Guud ahaan, habka Dacromet waxaa loo arkaa inuu ka saaxiibtinimo badan yahay deegaanka marka loo eego electro-galvanizing caadiga ah sababtoo ah waxay tirtiraysaa qubayska aashitada, xalalka cyanide, iyo daaweynta biyaha wasakhda ah ee ballaaran. Kiimikada biyaha-ku-saleysan waxay sidoo kale keentaa qiiqa isku-dhafka dabiiciga ah (VOC) ee hooseeya.

9. Gabagabo

Dhalooyinka laba geesoodka ah ee Dacromet waxay bixiyaan xal waxqabad sare leh oo loogu talagalay codsiyada dalbanaya isku halaynta farsamada iyo ilaalinta daxalka muddada-dheer. Isku darka daahan aadka u dhuuban ee aad waxtarka u leh, xorriyad dhammaystiran oo ka imanaya isugeynta hydrogen, iska caabbinta kulaylka aadka u wanaagsan, iyo kontoroolka cabbirka saxda ah ayaa ka dhigaya inay si gaar ah qiimo ugu yeeshaan xirmooyinka xoogga badan ee baabuurta, tamarta, badda, iyo qaybaha injineernimada qaabdhismeedka.

Sida xeerarka deegaanku u kobcayaan, dahaarka aan chromium-free zinc-flake ee laga soo qaatay tignoolajiyada asalka ah ee Dacromet waxay sii wadaan inay ballaariyaan kala duwanaanshaha xulashooyinka waafaqsan. Haddi loo cayimo sida Dacromet caadiga ah ama wax u dhigma oo casri ah, boolashan saddex geesoodka ah ee dahaarka leh waxay keenaan adkeysi la hubo oo si wayn u kordhiya nolosha adeega yaraynaysana kharashaadka dayactirka ee deegaanka daxalka iyo kulaylka sareeyo. Kala-goysyada muhiimka ah ee aan guuldarradu ahayn ikhtiyaar, Dacromet bolts hexagonal ayaa weli ah mid ka mid ah xalalka xiraha ee ugu kalsoon iyo farsamada horumarsan ee maanta jira.