DACROMET BOLTS

2026-11-07

1. Intangiriro

Mubuhanga bugezweho, ingingo zifatika zigomba kurwanya imitwaro yubukanishi no kwangirika kw ibidukikije. Gakondo ya electro-galvanizing hamwe na hot-dip galvanizing itanga uburinzi bwo kurwanya ingese ariko ikababazwa no kwinjiza hydrogène mumashanyarazi akomeye hamwe no kwivanga kurwego kumutwe. Igikoresho cya Dacromet, sisitemu ya flake ya zinc-aluminium yakozwe mu myaka ya za 70, irenga izo mbogamizi. Itanga ruswa idasanzwe yo kurwanya ruswa, ikuraho ibyago byo kwanduza hydrogène, ikabika urugero rw’urudodo, kandi igatanga ubushyuhe bwo hejuru bugera kuri 300 ° C. Bolt ya Dacromet isobanuwe cyane mubinyabiziga, ubwubatsi, ingufu z'umuyaga, gari ya moshi, n'inganda zo mu nyanja.

2. Gutwika Dacromet ni iki?

Dacromet nigikoresho kitari electrolytike, gishingiye kumazi ya zinc-flake igizwe na micron-nini ya zinc na aluminiyumu mumashanyarazi adahuza. Nyuma yo kuyikoresha no gukira, flake zirengerwa zikora inzitizi nyinshi zitanga inzitizi zitanga uburinzi ndetse no gukingira cathodic kurinda ibyuma byubutaka.

Ibintu by'ingenzi biranga:

Ubunini bwa firime: mubisanzwe 5-12 mm (biroroshye cyane kuruta gushyushya-gushira)
Kugaragara: kurangiza ifeza-imvi zuzuye kurangiza
Nta ngaruka ya hydrogène ishobora guterwa (nta gufata aside cyangwa electrolysis)
Kurwanya ruswa: akenshi> amasaha 1.000 gutera umunyu kugeza ingese itukura (ASTM B117)
Ubushyuhe bwo hejuru bugera kuri 300 ° C serivisi ikomeza

Ipitingi ikoreshwa na dip-spin (isanzwe ifata ibyuma byinshi), gutera, cyangwa kuvoma, hanyuma igakira neza kuri ~ 300 ° C. Amakoti yihitirwa arusheho kongera imbaraga zo kurwanya ruswa no kugenzura coefficient de friction kugirango imikorere ihoraho ya torque-tension.

3. Incamake yuburyo bwo gutwikira

Inzira isanzwe ya bolts igizwe nibyiciro bine byingenzi:

1.Itegurwa ry'ubutaka: Kugabanuka kwa alkaline bikurikirwa no gusukura imashini niba bikenewe. Kwirinda aside irinda kwirinda kwinjiza hydrogène.

2.Gusaba gusaba: Ibice byinjijwe mumazi ya zinc-aluminium flake slurry (dip-spin kubuto buto) cyangwa gutera; ibirenze bivanwaho na centrifugation kubwubunini bumwe.

3.Gukiza: Guteka hafi ya 300-320 ° C bihindura binder kandi bigahuza ibyuma byuma bikavangwa cyane.

4.Ikoti ryihitirwa / Ikidodo: Ikidodo cyoroheje gitezimbere amavuta, kurwanya imiti, kandi bikongera imikorere yumunyu-spray.

Kuberako inzira itari electrolytike kandi idafite aside irike, Bolt ifite imbaraga nyinshi (Icyiciro cya 8.8, 10.9, 12.9 na ASTM A490) irashobora gutwikirwa nta ngaruka ya hydrogène yo munda imbere - inyungu ikomeye yumutekano kuruta amashanyarazi gakondo.

4. Ibyiza byingenzi bya Dacromet Bolts

4.1 Kwangirika Kuruta & Imikorere yo Kurwanya Rust

Filime yoroheje ya Dacromet (6-10 mm) isanzwe ihanganira amasaha 1.000.000 yo gupima umunyu utabogamye mbere yuko ingese itukura igaragara - inshuro 7-10 kurenza amashanyarazi asanzwe. Imiterere yibice byinshi itanga kurinda inzitizi mugihe flake ya zinc itanga uburinzi bwa cathodic. Chromate passivation irakomeza gutinda kwangirika kandi itanga kwikiza kugarukira ku tuntu duto.

4.2 Nta hydrogène yinjiza

Bolt ifite imbaraga nyinshi irashobora kwanduzwa cyane na hydrogène iterwa no gufata aside hamwe na electroplating, bishobora gutera kuvunika gutinda. Dacromet ikuraho burundu ibyago. Birakenewe rero kubintu bikomeye byihuta cyane muri moteri yimodoka, chassis, ibyuma byubatswe, hamwe ninteko zijyanye numutekano.

4.3 Ibipimo Byukuri & Urudodo Bikwiye

Hamwe nuburinganire bwa 5-12 mm gusa, Dacromet ntabwo ihindura cyane geometrie. Imbuto zisanzwe zirashobora gukoreshwa nta gukanda cyane. Ibinyuranye, gushyushya-gushira (40-80 mm) akenshi bisaba imbuto zidasanzwe. Ipfunyika yoroheje ihuye nibyiza kuri bolts neza neza.

4.4 Kurwanya Ubushyuhe Bwinshi & Kugenzura Ubuvanganzo

Dacromet ikomeza gushikama kugeza kuri 300 ° C serivisi ikomeza, hejuru yurugero rwamashanyarazi (~ 120 ° C) cyangwa gushiramo ubushyuhe (~ 200 ° C). Hamwe namakoti akwiye coefficente yubushotoranyi irashobora kugenzurwa (mubisanzwe μ = 0.10–0.18), bigatuma umutwaro uhoraho hamwe nimyitwarire yizewe.

5. Kugereranya imikorere

Imbonerahamwe ikurikira irerekana muri make itandukaniro ryibanze hagati ya Dacromet nubuvuzi busanzwe bwo kuvura kuri bolts:

Ibipimo by'imikorere	Dacromet	Amashanyarazi	Bishyushye
Ubunini busanzwe	5-12 mm	5-15 mm	40-80 + mm
Gusiga umunyu (kugeza ingese itukura)	1.000.000	100-300 h	500-1000 h
H₂ Ingaruka zo Kwinjira	Nta na kimwe	Hejuru (akeneye guteka)	Hagati
Ikigereranyo Cyikomeza.	≈ 300 ° C.	≈ 100-120 ° C.	≈ 200 ° C.
Kwivanga	Ntarengwa / Ntayo	Hasi	Birahambaye
Imbaraga-zohejuru	Cyiza (8.8–12.9)	Ntarengwa / Risky	Ntarengwa
Kugaragara	Ifeza imwe	Zinc nziza cyangwa ubururu	Icyatsi kibisi, cyijimye

Imbonerahamwe 1: Kugereranya imikorere yubuvuzi busanzwe bwa bolt

Dacromet itanga uburyo buhebuje bwa firime yoroheje, irwanya ruswa ikabije, ibyago bya hydrogène byinjira, hamwe nubushyuhe bwo hejuru - bigatuma ihitamo kubintu byinshi bisaba kwihuta.

6. Ibisanzwe

Dacromet yubatswe na bolts ikoreshwa cyane aho kurinda ruswa, umutekano, hamwe nuburinganire bwuzuye:

Imodoka & Ubwikorezi: Moteri, chassis, guhagarikwa no gufunga umubiri (cyane cyane Icyiciro 10.9 / 12.9).
Umuyaga Umuyaga & Imbaraga: Umunara, nacelle na fondasiyo ihindagurika mukirere cyinganda cyangwa inganda.
Gariyamoshi & Ibikorwa Remezo: Kurikirana ibifunga, ibiraro hamwe nuburyo buhuza bisaba ubuzima bwa serivisi ndende.
Ubwubatsi & Ibyuma: Imbaraga-zubaka zubatswe aho galvanizing itifuzwa.
Marine & Offshore: Ibigize byerekanwe kumiti yumunyu nubushuhe bwinshi (akenshi hamwe namakoti yongerewe hejuru).
Ibikoresho byubuhinzi & Biremereye: Imashini zikorera mubutaka bwangirika cyangwa ibidukikije hanze.

7. Ibipimo bijyanye & Amabwiriza yo Guhitamo

Dacromet nibindi bisa na zinc-flake bitwikiriye ibipimo mpuzamahanga harimo ISO 10683 (Fasteners - idafite amashanyarazi ya zinc flake coatings), EN 13858, ASTM F1136 / F1136M, hamwe nuburyo bwo gutera umunyu ASTM B117 / ISO 9227.

Mugihe cyo kwerekana Dacromet bolts, injeniyeri agomba gutekereza:

Icyiciro cy'imbaraga: Icyiza kuri 8.8 no hejuru; akenshi ni itegeko kubice 10.9 / 12.9.
Icyiciro cya Ruswa: Hitamo uburemere bwo gutwikira, umubare w'amakoti hamwe na topco ukurikije umunyu-spray usabwa cyangwa imikorere yikizamini.
Coefficient de frais: Kugaragaza ikoti ryagenzuwe-lubricity topcoat niba umutwaro uhoraho wa clamp ari ngombwa.
Ibidukikije: Nibyiza kubikorwa byinganda, ibinyabiziga nibindi bidukikije byo hanze; suzuma sisitemu yibyibushye yo guhura ninyanja ikabije.
Ikiguzi nubuzima-Cycle: Igiciro cyinshi kuruta plaque ya zinc isanzwe ikurwaho nigihe kirekire cyo gukora no kubungabunga bike.

8. Umwanzuro

Bolt ya Dacromet yerekana igisubizo gikuze, cyimikorere-yo hejuru yo gukingira ruswa. Ipine ya zinc-aluminiyumu itanga imbaraga zo kurwanya umunyu-spray iruta kure cyane iy'amashanyarazi asanzwe, ikuraho ingaruka ya hydrogène yangiza itera imbaraga zikomeye, ikabika urugero rwiza, kandi ikihanganira ubushyuhe bwo hejuru bugera kuri 300 ° C.

Ku ba injeniyeri n'abaguzi bashaka imikorere yizewe yo kurwanya ingese no kurwanya ruswa mu binyabiziga, imiterere, ingufu n’inganda zikoreshwa mu nganda, Dacromet ikozwe mu nganda itanga uburinganire bugaragara burambye, umutekano n’ubunyangamugayo. Iyo bisobanuwe neza - bihuye nu ntera yo gutwikira, hejuru yikoti hamwe no gutandukanya ibintu bya serivisi - bigira uruhare mubuzima burebure, kugabanya kubungabunga no kunoza sisitemu muri rusange. Nkuko ibyifuzo byimbaraga-ndende, bifata igihe kirekire bikomeza kwiyongera, ibishishwa bya zinc-flake nka Dacromet bikomeza kuba urufatiro rwubwubatsi bugezweho bwihuta.

Ibanza. Ibikurikira.

Amakuru agezweho