Tataiso e Felletseng ea Dacromet Countersunk Hex Socket Bolts - Tharollo e Ratoang ea Fastener e nang le Ts'ebetso e Ikhethileng ea Anti-Corrosion le Thibelo ea Rust. 

Ho hlaha ha theknoloji ea Dacromet (eo hape e tsejoang e le zinc-aluminium flake coating) thekenoloji e fana ka tharollo e nepahetseng phephetsong ena. Li-bolts tsa Dacromet countersunk hex socket li kopanya li-anti-corrosion coating tse tsoetseng pele tsa zinc-aluminium tse nang le moralo o nepahetseng oa li-countersunk hex socket. Ha li fane feela ka mokhoa o babatsehang oa ho thibela kutu le ho thibela mafome empa hape li boloka matla a phahameng a mochine le ho kopana habonolo. Sengoliloeng sena se kenyelletsa ka botlalo likarolo tsa tekheniki le boleng ba ts'ebeliso ea li-bolts tsa Dacromet countersunk hex socket ho tsoa ho litebello tsa melao-motheo ea ho roala, sebopeho sa sehlahisoa, melemo e khahlanong le kutu, maemo a ts'ebeliso, le likhothaletso tsa khetho.

2. Kakaretso ea Dacromet Coating Technology

Dacromet, eo hape e bitsoang coating ea zinc-chromium kapa zinc-aluminium coating, ke theknoloji ea phekolo ea tšepe e sa sebetseng e phahameng ea tšepe e sa sebetseng hantle. Li-flakes tsa zinki tse ntle haholo le li-aluminium flakes li tsoakoa le chromate le li-binders tse ling tsa inorganic ho etsa lesela le thehiloeng metsing. Ho roala ho sebelisoa ka mokhoa o ts'oanang ho karolo ea tšepe ea tšepe ka ho qoelisoa, ho fafatsa kapa ho hlatsoa, ​​​​ebe ho phekoloa ka sintering e phahameng ea mocheso ho theha lesela le teteaneng le khahlanong le kutu. Sebopeho sena se nang le mefuta e mengata ea li-flakes tsa zinc-aluminium tse pota-potiloeng, tse kopantsoeng ke lifilimi tsa chromate passivation, li theha mokoallo o ikhethang oa "labyrinth effect" o thibelang ka katleho ho kenella ha mongobo, oksijene le mecha ea phatlalatso e senyang, ka tsela eo e finyella ts'ebetso e ikhethang ea nako e telele e khahlanong le kutu le ho thibela mafome.

2.2 Melemo ea Motheo ea Dacromet Coating

Ha ho bapisoa le mekhoa ea setso ea ho etsa li-electro-galvanizing le hot-dip galvanizing, ho roala ha Dacromet ho fana ka melemo ea bohlokoa ho thibela ho bola le ho thibela mafome:

• Ho hanyetsa ho hola ho matla ha letsoai-spray: Liaparo tse tloaelehileng tsa Dacromet li ka mamella lihora tse 500-1500 kapa ho feta litekong tse sa nke lehlakore tsa letsoai, tse fetang hole tse tloaelehileng tsa electro-galvanizing (hangata ke lihora tse 72-200), li lelefatsa bophelo ba ts'ebeletso ea bolt maemong a leholimo a leoatle le tikoloho ea letsoai ea ho tlosa leqhoa.
• Ha ho kotsi ea hydrogen embrittlement: Electroplating ea setso e ka hlahisa liathomo tsa haedrojene ka har'a likaroloana tsa tšepe tse matla haholo, e leng se bakang ho robeha ha hydrogen embrittlement. Dacromet ke mokhoa o se nang electrolytic o felisang kotsi ena ka ho feletseng, e leng se etsang hore e be e loketseng ka ho khetheha bakeng sa liboutu tse matla haholo.
• Mocheso o phahameng haholo le ho hanyetsa boemo ba leholimo: Ho roala ho lula ho tsitsitse bakeng sa tšebeliso ea nako e telele hoo e ka bang 250 ° C 'me e khona ho mamella mocheso o phahameng ka nako e khutšoanyane. E boetse e bonts'a khanyetso e matla khahlanong le mahlaseli a ultraviolet le potoloho ea mocheso o mongobo, e netefatsa ts'ebetso e tšoarellang ea anti-corrosion le thibelo ea mafome.
• Ho itšireletsa le ho itšireletsa ka cathodic: Ha seaparo se senyehile sebakeng sa heno, li-zinc le li-aluminium flakes li sebetsa e le li-anode tsa sehlabelo, ho fana ka tšireletso ea electrochemical ho substrate e pepeneneng le ho ntlafatsa ka kakaretso matla a ho thibela ho bola le ho thibela mafome.

3. Likarolo tsa Sebopeho sa Countersunk Hex Socket Bolts

Liboutu tsa Countersunk hex socket (tse tsejoang hape e le li-screw tsa hex socket tse bataletseng) li na le moralo oa hlooho oa conical kapa cylindrical countersunk head. Ka mor'a ho kenya, hlooho e lutse ka ho feletseng ka har'a countersink ea workpiece, ho finyella sebaka se boreleli, se se nang protrusion. The hex drive e ka hare e bohareng ba hlooho, e lumellang ho tiisa le ho tlosoa ka katleho ka senotlolo sa hex ha ho ntse ho fokotsa kotsi ea ho thella.

Mefuta e tloaelehileng e tloha ho M3 ho ea ho M20 le bophara bo boholoanyane, ka bolelele bo ka khonehang ho latela litlhoko. Lisebelisoa hangata ke tšepe ea carbon, alloy steel, kapa stainless steel, e phekotsoeng mocheso ho fihlela lihlopha tsa thepa tse kang 8.8, 10.9, kapa 12.9. Kalafo ea Dacromet e fana ka tšireletso e pharaletseng e khahlanong le kutu le ho thibela mafome ntle le ho senya ho nepahala ha khoele kapa thepa ea mochine, e leng se etsang hore liboutu tsena li tšoanelehe ka ho khetheha bakeng sa lits'ebetso tse hlokang ho bata ha holimo le ho hanyetsa ho hoholo ho matla.