Bolt ya Dacromet: Kurinda Ruswa Kurinda no Kurinda Ingese Kubuhanga bugezweho 

2. Gusobanukirwa Ikoranabuhanga rya Dacromet

2.1 Ibigize n'imiterere

Dacromet ni sisitemu yihariye ya zinc-flake sisitemu yagenewe cyane cyane kurinda ruswa ikora neza. Igipfundikizo kigizwe na microscopique zinc hamwe na flake ya aluminiyumu ihagarikwa muri matrike idasanzwe, ubusanzwe ishingiye kuri oxyde ya chromium cyangwa ibintu bisa. Iyo ushyizwe kuri bolt hanyuma ugakizwa binyuze muburyo bwo guteka bugenzurwa, utwo dusimba duhuza ibice byinshi, bigakora inzitizi yuzuye, ya lamellar ikumira neza kwinjira mubitangazamakuru byangirika nkamazi, ogisijeni, na ioni ya chloride.

Ubusanzwe firime yububiko bwa Dacromet itwikiriye kuri bolt iri hagati ya micrometero 5 na 15. Nuburyo bugaragara cyane, imiterere myinshi itanga inzitizi zidasanzwe. Igice cya zinc gikora ibitambo, cyane cyane cyangirika kugirango kirinde ibyuma byuma, mugihe ibice bya aluminiyumu byongera umutekano muri rusange hamwe na passivation. Ubu buryo bubiri-bwibikorwa nibyingenzi muburyo bukomeye bwo kurinda ruswa no gukumira ingese itandukanya Bolt ya Dacromet nu gufunga bisanzwe.

2.2 Uburyo bwo gusaba

Igikoresho cya Dacromet gitangirana no gutegura neza hejuru ya bolt kugirango yizere neza. Icyuma gisukuye noneho cyinjizwa cyangwa kigaterwa namazi ashingiye kuri zinc-aluminium. Nyuma yo kubishyira mu bikorwa, ibishishwa bitwikiriye bigenda bikurikiranwa neza mugihe cyo hejuru. Muri ubu buryo bwo kuvura amashyuza, guhuza ibinyabuzima bidahuza hamwe na flake ya metallic byinjira muri firime ikomeza, yubahiriza itanga uburinzi burambye.

Kimwe mu byiza byingenzi byuburyo bwa Dacromet kubikorwa bya bolts ni ukubura acide acide yibintu byinshi muburyo butandukanye. Imashanyarazi gakondo ikenera isuku ikomeye ya aside, ishobora kwinjiza hydrogène mumashanyarazi akomeye kandi biganisha kuri hydrogen. Mugabanye cyangwa kurandura ibi byago, igipfundikizo cya Dacromet gikomeza uburinganire bwimikorere ya bolts-tensile mugihe ikomeje gutanga uburinzi bukomeye no kwirinda ingese.

3. Kurinda Ruswa no Gukumira Ingese

3.1 Imikorere ya Laboratoire

Ubushobozi bwo kurinda ruswa ya Bolt ya Dacromet ikunze kugereranywa hifashishijwe ibizamini byo gutera umunyu utabogamye ukurikije ASTM B117 cyangwa ISO 9227. Ipasi nziza cyane ya Dacromet isanzwe igera kumasaha 720 kugeza kumasaha arenga 1.000 yo kwerekana mbere yuko hagaragara ingese zitukura hejuru ya bolt. Mubintu byinshi byateye imbere birimo kashe yinyongera cyangwa amakoti, imikorere irashobora kurenza amasaha 1.500 cyangwa amasaha 2000. Uru rwego rwo kwirinda ingese rurenze kure amashanyarazi asanzwe ya zinc kandi akenshi irusha ubukana gakondo-dip galvanizing mugihe cyibizamini byagereranijwe.

Kurenga kwipimisha ryumunyu uhagaze, Bolt ya Dacromet yerekana imbaraga zidasanzwe mukigeragezo cyangirika cyikigereranyo kigereranya cyane nukuri kwisi. Izi protocole zirimo guhinduranya ibihe byumunyu wumunyu, ubushuhe, no gukama, bikarwanya ubushobozi bwikibumbano bwo gukomeza kurinda inzitizi. Imiterere ya zinc-aluminiyumu ya Dacromet isubiza neza ibihe nkibi, bikomeza kurinda ruswa kwizerwa na nyuma yigihe kirekire kandi gikabije.

3.2 Uburyo bwo Kurinda

Kurinda ruswa iruta iyindi itangwa na Dacromet bolts biva muburyo butandukanye bwo guhuza ibikorwa. Ubwa mbere, inzitizi yumubiri iterwa no gufunga ibyuma byuzuzanya bibuza ikwirakwizwa ryamazi, ogisijeni, na chloride ion yerekeza munsi yicyuma. Icya kabiri, igikorwa cyo gutamba flake ya zinc gitanga uburinzi bwa cathodic kuri microscopique iyo ari yo yose ihagaritse. Icya gatatu, gushiraho ibicuruzwa bihamye byangirika hamwe na firime ya passivation irusheho kongera imbaraga zo kwirinda ingese igihe kirekire mugushiraho inzira zishobora gutera. Izi ngamba zinyuranye zo kwirwanaho zituma Dacromet ikozweho na bolts kugirango igumane ubusugire bwimiterere no kugaragara kure cyane kuruta kutavurwa cyangwa gufatanwa bisanzwe.

4. Ibyiza byingenzi bya Dacromet Bolts

Umwidegemvyo wo Kwinjiza Hydrogen: Imbaraga zikomeye cyane cyane iz'umutungo wibyiciro 10.9 na 12.9, zirashobora kwanduzwa cyane na hydrogène mugihe zikoreshejwe amashanyarazi gakondo. Kwinjiza hydrogène ya atome mugihe cyo koza aside cyangwa kubitsa electrolytike birashobora gutuma habaho gutinda gucika intege munsi yumutwaro uremereye. Tekinoroji ya Dacromet ikuraho ahanini iyi mpungenge kuko inzira ntabwo irimo amashanyarazi ya hydrogène electrolytike kandi akenshi irinda kwangiza aside ikomeye. Nkigisubizo, injeniyeri zirashobora kwerekana ibyuma byinshi bya Dacromet byizeye ko kurinda ruswa bitazabangamira ubwizerwe bwumutekano cyangwa umutekano.

Gitoya, Uniform, na Dimensionally Stating Coating: Bitandukanye na hot-dip galvanizing, ishobora kubitsa umubyimba wa zinc kandi rimwe na rimwe utaringaniye ubangamira urudodo rukwiranye nubusabane bwumuriro, impuzu ya Dacromet iranga inanutse kandi imwe. Ubusanzwe uburebure bwa 5-15 µm bwerekana neza ko kwihanganira Bolt no kwihanganira ibinyamisogwe bikomeza guhuzwa bitabaye ngombwa ko habaho imbuto zidasanzwe nini cyangwa guca insinga. Ihagarikwa ryimiterere rifite agaciro cyane cyane mubiterane byuzuye hamwe nibikorwa byihuta byihuta aho imizigo ihoraho ari ngombwa.

Ubushuhe buhebuje bwo kurwanya ubushyuhe hamwe n’imiti ihamye: Ipasi ya Dacromet yerekana ubushyuhe budasanzwe, ikomeza kurinda ruswa no kwirinda ingese ku bushyuhe bwa serivisi ikomeza kugera kuri 250-300 ° C, bitewe nuburyo bwihariye. Ubu bushyuhe butuma Dacromet ihinduranya ikoreshwa hafi ya moteri, sisitemu yo kuzimya, amashyiga yinganda, hamwe nubushyuhe bwo hejuru bwubushyuhe bwo hejuru aho ibinyabuzima byangirika. Byongeye kandi, imiterere idahwitse yimyenda itanga imbaraga zo kurwanya imiti myinshi yinganda.

Kugenzura Ubuvanganzo no Gukora Inteko: Sisitemu nyinshi za Dacromet zirimo kashe yihariye cyangwa amavuta yemerera kugenzura neza coefficient de frais. Iyi mikorere irakomeye kugirango ugere kuri preload ihamye mubice bihindagurika. Mugutanga imyitwarire iteganijwe ya torque-tension, Dacromet bolts ishyigikira inzira yizewe kandi igabanya ibyago byo munsi cyangwa gukomera. Ihuriro ryokurinda ruswa nziza, ibiranga ubwumvikane buke, hamwe nubwisanzure bwimyanya ya hydrogène Dacromet nkuburyo bwiza bwo kuvura kubutaka bukomeye kandi bukomeye cyane.