Dacromet Flange Bolts

2026-11-09

1. Hordhac

Codsiyada warshadaha casriga ah, daacadnimada muddada dheer ee kala-goysyada xiran waxay si aad ah ugu xiran tahay waxtarka ilaalinta daxalka iyo waxqabadka lidka ku ah miridhku. Dajinta zinc-dhaqameedka iyo galvanization-ku-kulul inta badan waxay ku gaabiyaan bay'ada aadka u kacsan sida kaabayaasha xeebaha, meelaha xeebaha ah, dhirta kiimikaad, iyo gawaadhida hoostooda ee soo gaadha milixda waddooyinka. Dacromet boolal flange isku dar faa'iidooyinka qaabdhismeed ee naqshadeynta madaxa flange-ga iyo kuwa aad u wanaagsan miridhku-ka-hortagga iyo ka-hortagga daxalka sifooyinka zinc-aluminium flake dahaarka.

Dacromet (sidoo kale loo yaqaan daahan zinc flake) waa daaweyn aan koronto ahayn, oo biyo ku salaysan. Waxay dejisaa lakab khafiif ah oo aad waxtar u leh oo Zinc iyo aluminium flakes ah oo ay ku xidhan yihiin matrix chromate ah, taasoo keenaysa wax aan caadi ahayn. ilaalinta caqabadda, ilaalinta cathodic allabariiyo is-bogsiyeedka. Codsaday boolal flange, daahan waxay bixisaa muddo dheer la isku halayn karo iska caabin miridhku iyada oo aan waxyeello loo geysan taam ahaanshaha dunta, saxnaanta qulqulka, ama soo bandhigin khatarta qallafsanaanta hydrogen.

Jaantuska 2

2. Flange Bolts iyo Tiknoolajiyada Dahaarka Dacromet

Bolt flange waxa uu leeyahay garab wareeg ah oo isku xidhan oo ka hooseeya madaxa lix geesoodka kaas oo u shaqeeya sidii dhaqe gudaha ku dhex jira. Naqshadani waxay u qaybisaa xoogga isku-xidhka dusha sare ee xajinta, yaraynta dhaawaca dusha sare iyo hagaajinta caabbinta dabacsanaanta gariirka. Marka boolal-yadani helaan daahan Dacromet, isku darka waxay soo saartaa xire bixisa isku halaynta farsamada iyo ka sarreeya labadaba ka-hortagga miridhku iyo daxalka u adkaysta waxqabad. Dahaarka khafiifka ah (sida caadiga ah 5-12 μm) wuxuu ilaaliyaa joomatari dunta saxda ah.

2.1 Halabuurka Dahaarka iyo Habka

Dacromet waa kala firdhiso aqueous of flakes zinc, flakes aluminium, iyo chromium oxides. Habka aan elektarooniga ahayn ayaa caadi ahaan ku lug leh: (1) nadiifinta dusha sare iyada oo aan la qaadin aashitada gardarada ah; (2) Codsiga lagu shubo-spin-ka-maroojiska, biyo-miirashada ama buufinta; iyo (3) in lagu daaweyo ku dhawaad 300°C si loogu daro jajabyada lakabyo is dulsaaran. Filimka qalin-cawlan ee biraha ah ee ka soo baxa wuxuu bixiyaa lakabyo badan iska caabin oksidation iyo mid la isku halayn karo xannibaadda qoyaanka.

2.2 Hababka Ilaalinta Daxalka

Dacromet waxay gaadhay heer aan caadi ahayn ka-hortagga daxalka waxqabadka iyada oo loo marayo saddex hab oo isku-dhafan:

Ilaalinta Caqabadaha: Isku darka zinc iyo aluminium flakes waxay abuuraan xayndaab jireed oo xannibaya biyaha, ogsijiinta, iyo ions-daxalka sida chlorides.
Ilaalinta (Cathodic) allabari: Jeexjeexyada Zinc waxay door bidaan daxalaystaan, iyagoo u dhaqmaya sidii anode allabari oo ka ilaalinaysa substrate-ka birta samaynta miridhku.
Caafimadka iyo Is-bogsiinta: Xeryahooda Chromate waxay sameeyaan filim dadban waxayna u guuri karaan xagashada yaryar, iyagoo siinaya joogto ah ka hortagga miridhkuiyo kartida is-dayactirka.

3. Faa'iidooyinka muhiimka ah ee Dacromet Flange Bolts

Marka la barbar dhigo daawaynta caadiga ah ee dusha sare, Dacromet flange bolts waxay bixiyaan isku darka faa'iidooyinka waxqabadka gaarka ah:

Iska caabbinta buufinta milixda ee Sare: Caadi ahaan waxa uu dhaafaa 1,000-1,200 saacadood ee tijaabada buufinta milixda dhexdhexaadka ah (ISO 9227) iyada oo aan lahayn miridhku cas—badanaa 7-10 jeer ka wanaagsan daahanka electro-galvanized.
Halista Ebrittlement Hydrogen: Habka aan elektrolytic-ka ahayn wuxuu baabi'iyaa jiilka hydrogen, taasoo ka dhigaysa Dacromet mid ku habboon heerka sare ee Fasalka 8.8, 10.9, iyo 12.9.
Dahaarka khafiifka ah, cabbir ahaan deggan: Kaliya 5-12 μm, dahaarka ayaa ilaalinaya saxnaanta dunta waxayna u ogolaataa lawska caadiga ah in la isticmaalo iyada oo aan dib loo taaban.
Iska caabbinta kulaylka wanaagsan: Waxay ilaalisaa daacadnimada ilaa 300°C, aad uga sarraysa dahaarka caadiga ah ee zinc kaas oo hoos u dhiga 100-200°C.
Cimilo heersare ah iyo iska caabbinta Kiimikada: Waxay u adkaysataa jawiga warshadaha, cusbada waddooyinka, asiidhyada khafiifka ah iyo alkalis iyagoo bixinaya waqti dheer ka-hortagga miridhkuwaxqabadka dibadda.
Xakamaynta is jiid jiid wanaagsan: Iyada oo la raacayo jaakadaha dushooda saliidaysan ee ikhtiyaarka ah, isku-dhafka is-jiidhka ayaa si adag loo xakameyn karaa culeyska xajin la isku halayn karo.

4. Isbarbardhigga Waxqabadka iyo Dahaarka Dhaqanka

Shaxda hoose ayaa soo koobaysa kala duwanaanshaha muhiimka ah ilaalinta daxalka iyo sifooyinka dahaarka.

Hanti	Dacromet	Electro-Galvanizing	Galvanizing Kulul-Dip
Dhumucda dahaarka	5-12 μm	5-15 μm	40-80 μm
Buufis milix ah (aan lahayn miridh cas)	≥1,000-1,200 saac	100-300 saacadood	500-800 saacadood
Embrittlement Hydrogen	Midna	Khatar sare	Khatar dhexdhexaad ah
Iska caabinta kulaylka	Ilaa 300°C	≤100°C	≤200C
Saamaynta Fiican ee Thread	Ugu yar / heer sare ah	Wax yar	Badana waxay u baahan tahay dib u taabasho

Shaxda 1. Waxqabadka isbarbardhigga ee Dacromet iyo dahaarka zinc caadiga ah ee xirayaasha.

5. Codsiyada caadiga ah

Dacromet bolts flange ayaa lagu qeexay meel kasta oo sare iska caabin daxalka waa in lagu daraa isku halaynta farsamada:

Baabuur: Chassis, ka joojinta, nidaamka biriiga iyo qaybaha jidhka hoostiisa oo soo gaadhay milixda wadada.
Tamarta dabaysha & xeebaha: Flanges Tower, nacelle assemblies iyo isku xirka qaab-dhismeedka ee jawi cusbada.
Dhismaha & kaabayaasha: Buundooyinka, dhismayaasha xeebaha, dariiqyada ilaalinta ee u baahan waqti dheer ka hortagga miridhku.
Mashiinada culus & tareenada: Qalabka ku jira deegaanka qoyan ama kimikalka gardarrada leh halkaas oo ka-hortagga daxalkawaxqabadku waa muhiim.

6. Tilmaamaha Guud

Dacromet flange bolts waxaa loo soo saaray heerarka caalamiga ah ee waaweyn iyo darajooyinka xoogga:

Halbeegga	Range / Qiimaha caadiga ah
Heerarka	DIN 6921, ISO 4162, GB/T 5787/5789, ASME B18.2.1
Fasalada Xoogga	8.8, 10.9, 12.9 (mitir); SAE Fasalka 5/8 (inji)
Dhexroorka dunta	M5–M24 (mitir); 1/4"-5/8" (Imperial)
Dhererka dhererka	10 mm - 200 mm (dhererka gaarka ah waa la heli karaa)
Dhumucda dahaarka	Caadi ahaan 5-12 μm (Fasalka A / B kala duwanaanshiyaha)
Muuqashada	Birta qalin-cawlan (matte)

7. Rakibaadda ugu Fiican & Gabagabada

Si loo kordhiyo ka-hortagga daxalka nolosha adeegga ee boolalka flange ee Dacromet: isticmaal nuts-dahaarka Dacromet-ku-daran iyo weel-dhaqista halka ay suurtagal tahay; Raac qiyamka qulqulka lagu taliyey (xakamaynta la xakameeyey waxay taageertaa culeyska saxda ah); ka fogow burburka farsamo ee xad dhaafka ah inta lagu jiro wax ka qabashada; oo ku kaydi xidhayaasha xaaladaha qalalan ka hor inta aan la isticmaalin.

Marka la soo koobo, boolalyada flange ee Dacromet waxay u taagan yihiin xallin qaangaadh ah, wax qabad sare leh oo si guul leh wax uga qabta shuruudaha laba-geesoodka ah ee isku halaynta farsamada iyo muddada dheer. ilaalinta daxalka. Marka la isku daro faa'iidooyinka qaybinta culeyska ee naqshadeynta flange isku dhafan oo leh daahan khafiif ah oo aad waxtar u leh zinc-aluminium flake, xirayaashan ayaa bixiya heer sare. ka-hortagga miridhku wax qabad, baabi'inta khataraha khalkhalgelinta hydrogen, oo ilaali xakamaynta cabbirka saxda ah.

Deegaannada ay xirayaasha elektro-galvanized-ka caadiga ah ama galvanized galvanized-ku-shubasho ah ay ku dhici doonto xilli hore miridhku iyo xaalufka—xeebaha, badda, baabuurta, iyo goobaha warshadaha—Dacromet flange bolts waxay bixiyaan beddelka la xaqiijiyay, waara. Aad u fiican cimilada, iska caabin oksidationiyo ilaalin allabaryo Nidaamyadu waxay xaqiijiyaan nolosha adeegga oo la dheereeyey iyo kharashaadka dayactirka oo yaraada, taas oo ka dhigaysa doorashada sii kordheysa ee injineerada iyo naqshadeeyayaasha adduunka oo dhan.