Dacromet Coating Bolts - Ubuyobozi Bwuzuye Kuri Zinc-Aluminium Flake Ikoreshwa rya tekinoroji. 

1.Dacromet ni iki?

Dacromet yakozwe mu mpera za 1960 na sosiyete y'Abanyamerika Diamond Shamrock (nyuma MCI, hanyuma NDS / Doerken MKS). Mu ntangiriro yakozwe kugirango ikemure ikibazo cyo kunanirwa kwa hydrogène mu mashanyarazi akomeye y’imodoka, kuva icyo gihe yahindutse isi yose ku rwego rwo kurwanya ruswa ruswa, rusobanurwa na ISO 10683, ASTM B695, hamwe n’ibipimo bitandukanye by’igihugu (GB / T 18684 mu Bushinwa).

Ibintu by'ingenzi biranga

Non-electrolytic process: Dacromet ikoreshwa hifashishijwe dip-spin, ntabwo ari amashanyarazi. Nta muyagankuba uca mu bice, ukuraho hydrogène hamwe ningaruka zijyanye no kwinjiza.

Igikoresho gishingiye kuri flake: Igifuniko kigizwe na microscopique zinc na aluminiyumu (20-60 nm z'ubugari) zuzuzanya nka shitingi yo hejuru, bigakora inzitizi yuzuye, igizwe ninshi.

Ntoya kandi imwe: Ubunini busanzwe butwikiriye ni 4-10 µm - binanutse bihagije kugirango ubungabunge urudodo rukwiye kandi rwihanganirana, bitandukanye nubushyuhe bukabije.

Kubungabunga ibidukikije: Dacromet igezweho idafite chromium ya hexavalent (Cr⁶⁺), ihura na RoHS, REACH, na ELV (Imodoka ya nyuma yubuzima).

Kurwanya ubushyuhe: Ipfunyika idahwitse ihanganira ubushyuhe bwa serivisi ikomeza kugera kuri 250 ° C, bigatuma ibera moteri ya moteri hamwe na feri yegeranye.

2.Ibyiza

Kurwanya ruswa birenze urugero: Amasaha 500–1,200 yumunyu utabogamye (NSS) kuri ISO 9227 - inshuro 5-10 kurenza isahani isanzwe ya zinc (amasaha 96-240).

Zero hydrogen embrittlement: Inzira idafite amashanyarazi ikuraho kwinjiza hydrogène, bigatuma Dacromet ikundwa cyane kubifata imbaraga zikomeye (Icyiciro cya 8.8–12.9) aho amashanyarazi abujijwe cyangwa abujijwe.

Excellent coating uniformity: Gupfundikanya ibipfundikizo bitwikiriye ibirindiro, ibyobo bihumye, hamwe na geometrike igoye cyane kuruta amashanyarazi cyangwa gushyuha. Imitwe hamwe nimizi yakira ubwishingizi buhoraho.

Thin coating, preserved tolerances: Kuri 4-10 µm, Dacromet ntabwo ibangamira guhuza imigozi cyangwa umubano wa torque-tension. Nta kongera gukanda imbuto zirakenewe, bitandukanye na hot-dip ya galvanised.

Kurwanya ubushyuhe: Ipfunyika idasanzwe ya ceramic imeze nkububiko bwayo ikingira ubushyuhe bugera kuri 250 ° C (ikomeza) na 300 ° C (mugihe gito), ikarenza kure ibinyabuzima.

Kubahiriza ibidukikije: Ubuntu bwa Cr⁶⁺, bwujuje amabwiriza ya RoHS, REACH, na ELV. Amazi ashingiye kumazi afite imyuka mike ya VOC ugereranije nubundi buryo bushingiye kumashanyarazi.

Good adhesion and wear resistance: Imiti ihujwe na chimique irwanya gukata, gushushanya, no gutunganya ibyangiritse kuruta isahani isanzwe.

3. Comparison with Other Coatings

Imbonerahamwe ikurikira iragereranya Dacromet nuburyo bubiri busanzwe bwihuta bwo gutwikira - amashanyarazi ya zinc hamwe na hot-dip galvanizing:

Gutera umunyu kuri ISO 9227 NSS. Amazi ya hydrogène ashobora gukoreshwa kuri electroplated fasteners Icyiciro cya 10.9 no hejuru.

4. Porogaramu

Imodoka: Ibikoresho bya moteri, ibyuma bya chassis, sisitemu ya feri, ibice byo guhagarika, hamwe nibikoresho byuma. Dacromet isobanurwa na OEM nini (VW, Toyota, GM, Ford) kugirango ibe ifite imbaraga nyinshi (Icyiciro 8.8-10-10) aho hagomba kwirindwa kwinjiza hydrogène.

Construction & infrastructure: Guhuza ibyuma byubaka, ibyuma byikiraro, ibyuma bifata umurongo, hamwe nisano ifatika igaragaramo ibidukikije bitose kandi byangirika.

Amashanyarazi & imbaraga: Umuyoboro wogukwirakwiza, ibyuma bya switchgear, hamwe nugufunga amashanyarazi bisaba igihe kirekire hanze.

Gariyamoshi & transit: Kuzunguza ibicuruzwa, gukurikirana ibice, hamwe nibikoresho byerekana ibikoresho byerekanwe n'umunyu wa de-icing hamwe no kwangirika kwikirere.

Inyanja & inkombe: Ibyuma bya Dock hamwe nicyambu, ibyuma bifata ibyuma bya offshore, nibikoresho mubirere byuzuye umunyu (byongeweho ikote rya kashe kugirango birinde cyane).

Ingufu z'umuyaga: Umunara wa flange, ibyuma bya nacelle, hamwe na fondasiyo ya fondasiyo isaba imyaka mirongo yo kurinda ruswa idafite.

Ibikoresho & HVAC: Ubushyuhe bwo guhinduranya ubushyuhe, ibikoresho byo mu itanura, hamwe nibikoresho byo hanze byo hanze aho birwanya ubushyuhe no kurinda ruswa byombi.

Incamake

Dacromet ni tekinoroji yemejwe, ikora cyane yo kurwanya ruswa ikora ibyuma bifata ibyuma. Imiterere yihariye ya zinc-aluminium, ikoreshwa binyuze muburyo butari electrolytike dip-spin, itanga amasaha 500-1200 yo kurwanya umunyu utarinze kwinjiza hydrogène - bigatuma iba igikoresho cyo guhitamo amashanyarazi akomeye mumashanyarazi, ubwubatsi, ningufu. Hamwe na firime yoroheje, imwe, kubahiriza ibidukikije, hamwe no guhangana nubushyuhe buhebuje, Dacromet ikemura itandukaniro riri hagati yisahani ya zinc ihendutse hamwe nicyuma gihenze cyane, itanga impagarike nziza yimikorere, kwizerwa, nigiciro cyo gusaba byihuse.