Amawasha e-Dacromet Flat: Uhlolojikelele Oluphelele 

1. Isingeniso

Amawasha ayisicaba ayizingxenye ezibalulekile ezinhlelweni zokubopha ngomshini. Lawa madiski azacile, ayisicaba anembobo emaphakathi asabalalisa umthwalo webhawodi noma isikulufu, avikela izindawo ezihlanganisiwe ekulimaleni, futhi athuthukisa ukuthembeka kokuxhumeka. Ezindaweni ezonakalisayo—njengalezo ezichayeke emswakameni, usawoti womgwaqo, amakhemikhali, noma amazinga okushisa aphakeme—amawasha ensimbi angakaphekwa noma ane-zinc avame ukugqwala ngaphambi kwesikhathi, okuholela ekunciphiseni kwamandla okubamba, ukwehluleka kwamalunga, noma ukulungiswa okumba eqolo.

Ukuze kubhekwane nale nselele, kuye kwathuthukiswa izindlela zokwelapha ezisezingeni eliphezulu. Phakathi ephumelela kakhulu Ukufakwa kwe-Dacromet, uhlelo lwe-zinc-aluminium flake olusetshenziswa kabanzi kumawasha ayisicaba ukuze kusetshenziswe izimoto, ezokwakha, zasolwandle, nezimboni. Lesi sihloko sethula ama-washers flat e-Dacromet, echaza ubuchwepheshe bokugqoka, izakhiwo ezibalulekile, izindinganiso, izinzuzo, izinhlelo zokusebenza, kanye nokuqhathanisa nezinye iziqephu.

2. Iyini i-Dacromet Coating?

I-Dacromet (i-DACROMET®) i-non-electrolytic, ingxube ye-inorganic based emanzini eyakhiwe ngama-zinc flakes e-aluminium ahlakazwe kusibophezelo se-chromate. Isungulwe ekuqaleni ngeminyaka yawo-1970s ukulwa nokugqwala kukasawoti osemgwaqeni ezimotweni, isetshenziswa ngezindlela ze-dip-spin, spray, noma i-dip-drain ngemva kokususwa kwe-alkaline nokuhlanza ngemishini (akukho ukucotshwa kwe-asidi okusetshenzisiwe). I-coating bese iphulukiswa cishe ku-300 ° C, ikhiqize umncane (ngokuvamile u-5-15 μm), ifilimu efanayo yensimbi esiliva-grey enamathela ngokuqinile ku-substrate yensimbi.

Indlela yayo yokuvikela isebenza ngezindlela ezintathu ezihambisanayo:

1. Ukuvikelwa kwesithiyo - i-zinc ne-aluminium flakes egqagqene akha umgoqo oqinile wokumelana nomswakama, umoya-mpilo kanye nezinto ezigqwalisayo.
2. Ukuvikelwa kwe-Cathodic (umhlatshelo). - i-zinc corrodes ngokukhethayo, ivikela insimbi engaphansi noma ngabe ukumboza konakale kancane.
3. Passivation - Izinhlanganisela ze-chromium zidala amafilimu e-oxide azinzile abambezela ukugqwala okwengeziwe futhi asize ukuvala amaphutha amancane.

3. Izakhiwo Ezibalulekile Ze-Dacromet Flat Washers

3.1 I-Superior Corrosion Resistance

Ekuhlolweni kwe-salt-spray engathathi hlangothi (i-ASTM B117 / ISO 9227), i-Dacromet coatings ngokuvamile ifinyelela amahora angu-500-1,000+ ngaphandle kokugqwala okubomvu-imvamisa izikhathi ezingu-5-10 ubude kunokwejwayelekile kwe-zinc electroplating yokuqina okufanayo. Izisindo eziphakeme zokumboza (iBanga B noma okuhlukile kokuqina okuphezulu) zingadlula amahora angu-1,000, ukuphila kwesevisi okusekela iminyaka engu-5-15 noma ngaphezulu ezindaweni ezingaphandle noma ezingaphansi ezinonya.

3.2 Ukumelana Nokushisa Okuphezulu

I-coating igcina ubuqotho nezakhiwo zayo zokuzivikela ezifika cishe ku-300°C (572°F). Lokhu kwenza amawasha ayisicaba e-Dacromet alungele izingxenye eziseduze nezinjini, amasistimu e-exhaust, ama-braking asembling, neminye imithombo yokushisa lapho i-zinc plating evamile ingathambisa, icwebe, noma ilahlekelwe ukubola.

3.3 Ayikho I-Hydrogen Embrittlement

Ngenxa yokuthi le nqubo ayinayo i-electrolytic futhi igwema ukuchotshozwa kwe-asidi, i-Dacromet iyethuli ubungozi bokuhoxiswa kwe-hydrogen. Lena inzuzo ewujuqu yabawasha abanamandla aphezulu (amabanga okuqina 200 HV, 300 HV nangaphezulu) kanye nokusetshenziswa kanye namabhawodi aqinile (iBanga le-10.9 nangaphezulu), lapho ukuqhekeka okubangwa yi-hydrogen kuyinkinga enkulu ngokuqedwa kwe-electroplated evamile.

3.4 Ifilimu Elizacile, Elifanayo kanye Nezinzuzo Ezengeziwe

Ngobukhulu obujwayelekile befilimu eyomile obungu-5-12 μm kuphela, ukunamathela akuguquli kakhulu ubukhulu obubucayi noma ukucaciswa kwentambo, kugcina ukulingana okunembile nokusebenza kokubopha. Izinzuzo ezengeziwe zihlanganisa ukunamathela okuqinile ku-substrate, ukupendeka okuhle, i-coefficient elawulwayo yokungqubuzana (ikakhulukazi lapho kufakwa ijazi eligcotshisiwe), kanye nokuhambisana kwe-bimetallic nezingxenye ze-aluminium.

4. Amazinga, Izinto zokwakha, kanye Nemininingwane

Amawasha ayisicaba e-Dacromet akhiqizwa ngamazinga aqashelwa kabanzi wobukhulu bamazwe ngamazwe, okuhlanganisa i-DIN 125, ISO 7089, DIN 9021, kanye ne-ANSI/ASME B18.22.1. Izinto eziyisisekelo ngokuyinhloko ziyi-carbon steel ehlinzekwa ngamamaki obunzima njenge-100 HV, 140 HV, 200 HV, noma 300 HV; izinguqulo zensimbi engagqwali nazo ziyatholakala ngezidingo ezikhethekile. Osayizi bavamise ukuhluka ukusuka kumadayamitha amancane wemethrikhi (M1.6 / Φ1.7 mm) kuya kosayizi abakhulu (M160 / Φ165 mm nangaphezulu), amboze kokubili amawasha ajwayelekile namakhulu angaphandle-nobubanzi (fender). Amabanga okuhlanganisa ngokuvamile ayiBanga A (cishe u-24 g/m²) noma iBanga B (cishe u-36 g/m²), avame ukunikezwa ngamajazi angaphezulu angakhethwa athuthukisa ngokwengeziwe ukuthambisa noma ukusebenza kokugqwala. Abahlinzeki abahlonishwayo bahlinzeka ngemibiko yokuhlolwa kwesifutho sikasawoti, izilinganiso zokushuba, nezitifiketi zezinto ezibonakalayo.

5. Izinzuzo phezu Izingubo Ezivamile

• Impilo yesevisi enwetshiwe - Ukuvikela ukugqwala okude kakhulu kunciphisa kakhulu izikhawu zokulungisa kanye nezindleko zokushintshwa.
• Iphephile kwizixhumi zamandla aphezulu - ukungabi bikho okuphelele kwengozi ye-hydrogen embrittlement.
• Ukunemba kwe-Dimensional - ifilimu elincanyana ligcina ukubekezelelana kanye nokubandakanyeka okufanele kwentambo.
• Ukuzinza okushisayo - ukusebenza okuthembekile ezindaweni ezinezinga lokushisa eliphakeme.
• Izindleko zomjikelezo wokuphila ezivumayo - nakuba intengo yeyunithi yokuqala iphakeme kune-zinc plating eyisisekelo, impilo yesevisi ende nesikhathi esincishisiwe ngokuvamile kunikeza izindleko eziphansi eziphelele zobunikazi.

6. Izicelo Ezijwayelekile

Ezezimoto: I-chassis, i-suspension, i-underbody, i-exhaust, nezixhumi zekhompathi yenjini ezichayeke kusawoti womgwaqo kanye nomswakama. Ama-OEM amaningi kanye nabahlinzeki be-Tier-1 badinga ngokukhethekile ukumbozwa kwe-zinc-flake njenge-Dacromet yamawasha nezinsimbi ezibalulekile.

Ukwakhiwa Nengqalasizinda: Izixhumanisi zensimbi yesakhiwo, amabhuloho, amathaneli, izinkundla zasolwandle, isikafula, uthango, nezingxenyekazi zekhompuyutha zezakhiwo zangaphandle okufanele zimelane nokuchayeka isikhathi eside ngaphandle.

Eminye imikhakha: Imishini yasolwandle neyasogwini, imishini yezolimo neyokwakha, izitimela zesitimela nezokuthutha, imibhoshongo yamandla omoya nama-nacelles, izimpahla ezimhlophe nezinto zikagesi, kanye nemihlangano yezimboni evamile esebenza ezindaweni ezigqwalile noma ezinomswakama ophezulu.

7. Ukuqhathanisa Nezinye Izembatho

I-Zinc electroplating ayibizi futhi itholakala kabanzi, nokho inikeza ukumelana nosawoti-spray okulinganiselwe (imvamisa amahora angama-72-200) futhi ithwala ingozi ye-hydrogen-embrittlement ezingxenyeni ezinamandla kakhulu.

I-hot-dip galvanizing ihlinzeka ngokuvikeleka okuhle kakhulu kokugqwala kanye nokuziphatha komhlatshelo, kodwa okujiyile uma kuqhathaniswa kungaphazamisa ukulingana kwentambo nokunemba kobukhulu, kuyenze ingakufanelekeli ukunemba noma amawasha amancane.

Amanye amasistimu we-zinc-flake (ngokwesibonelo i-Geomt®) iletha ukusebenza ngeklasi elijwayelekile elifanayo ne-Dacromet. Ukukhetha kokugcina kuvame ukuncika ekucacisweni kwe-OEM ethile, izinketho ze-topcoat ezitholakalayo, namaketanga okunikezwa kwesifunda. Sekukonke, i-Dacromet inikeza ibhalansi ephumelelayo yogqinsi lwefilimu elincanyana, ukumelana nokugqwala okuphezulu, ukuzinza kokushisa, kanye nenkululeko ekungeneni kwe-hydrogen.

8. Isiphetho

Amawasha ayisicaba e-Dacromet ahlanganisa izinzuzo zemishini zamawasha ayisicaba avamile—ukusabalalisa umthwalo kanye nokuvikelwa kwendawo—nge-zinc-aluminium flake enamathela esezingeni eliphezulu eletha ukumelana nokugqwala okuvelele, ukusebenza kwezinga lokushisa eliphezulu, nokuphepha kwezicelo zamandla aphezulu. Ifilimu yabo ezacile, efaniswayo, uhlu lozalo lwezimoto olufakazelwe, nempilo ende yesevisi ibenza ukukhetha okuthandwayo kuyo yonke imikhakha yezimoto, ezokwakha, zasolwandle, kanye nezimboni ezibanzi.

Lapho ucacisa lawa mawasha, kufanele kuqashelwe ibanga lokuqina elidingekayo, indinganiso yobukhulu (DIN, ISO, noma ANSI), isisindo sokumboza noma ibanga, kanye nanoma yisiphi isidingo samajazi angaphezulu agcotshisiwe. Ukubambisana nabakhiqizi abanganikezela ngedatha yokuhlola isifutho sikasawoti kanye nezitifiketi zezinto ezibonakalayo kusiza ukuqinisekisa ukusebenza okuthembekile kusevisi. Kuzinhlelo zokusebenza lapho ukugqwala, ukushisa, noma amandla aphezulu kuyizici ezibalulekile, ama-washer acwecwe e-Dacromet ahlala eyisixazululo esifakazelwe futhi esingabizi kakhulu.

- Ukuphela Kwesihloko -