ʻO Dacromet Flange Bolts–Ati-Corrosion Flange Fasteners me ka Zinc-Aluminum Flake. 

Mahele 1 — Hōʻikeʻike Flange Bolt

He aha ka Flange Bolt?

ʻO ka pahu flange he ʻeke poʻo hex me kahi flange like me ka mea holoi holoi ma ke kumu o ke poʻo. Hāʻawi ka flange i ka ukana pipili ma kahi ākea, e hōʻemi ana i ke kaomi ʻana o ka ʻili ma ka mea i hoʻopili ʻia a pale i ka pōʻino i nā ʻili palupalu a pena ʻia. Hoʻopau kēia i ka pono o kahi mea holoi paʻa kaʻawale, hoʻomaʻamaʻa i ka hui ʻana a hōʻemi i ka helu ʻāpana.

Nā hiʻohiʻona hoʻolālā kī

ʻĀpana huikau: Hāʻawi i ka ikaika hoʻopaʻa ma luna o kahi ʻāpana nui ma mua o ke poʻo hex maʻamau, e hōʻemi ana i ke koʻikoʻi o ka halihali ʻana a me ka pale ʻana i ka indentation o ka ʻili.

ʻO ke koho serrated: Nahu ʻia ka ʻaoʻao ma lalo o ka ʻaoʻao serrated i ka ʻili male, e hāʻawi ana i ke kūpaʻa anti-loosening i kūkulu ʻia me ka ʻole o nā mea laka hou.

Nā ana maʻamau: Hana ʻia i DIN 6921, ISO 4162, a i ʻole GB/T 5787, e hōʻoia ana i ka hoʻololi ʻana ma waena o nā kaulahao lako honua.

Nā māka ikaika kiʻekiʻe: Loaʻa i ka papa waiwai 8.8 a me 10.9, kūpono no ka hoʻolālā ʻana a me nā noi haʻahaʻa.

Nā kikoʻī

Mahele 2 — ʻenehana hoʻopili ʻo Dacromet

ʻO ka Dacromet (达克罗) kahi lāʻau lapaʻau i hoʻopaʻa ʻia i ka wai, non-electrolytic surface e waiho ai i kahi kiʻi ʻoniʻoni ʻoniʻoni o ka zinc a me nā flakes alumini i hoʻopaʻa ʻia e nā pūhui chromium inorganic. Hoʻohana ʻia ma ke kaʻina hana dip-spin-cure, hāʻawi ia i nā ʻāpana he nui o ka pale ʻana i ka corrosion me ka hoʻokomo ʻole ʻana i ka hydrogen i loko o ke kila - he pono koʻikoʻi no nā mea hoʻopaʻa ikaika kiʻekiʻe.

Mechanism Palekana

Ka palekana kaumaha: ʻOi aku ka maikaʻi o nā ʻōpala Zinc e pale i ka substrate kila, ʻoiai ke ʻoki ʻia ka uhi.

Keakea kino: Hoʻokumu nā flakes zinc-aluminum i kahi ala ʻāwili e ālai ai i ka makū, ka oxygen, a me nā ion corrosive.

ʻO ka hoʻopalekana kemika: Hoʻokumu nā pūhui Chromium i kahi papa passive e hoʻolohi i ka hoʻoheheʻe ʻana o ka zinc a hāʻawi i ka hoʻōla ponoʻī ʻana i nā micro-scratches.

Nā Pōmaikaʻi Nui no nā Bolts Flange

ʻAʻohe hydrogen embrittlement: Kaʻina hana ʻole-electrolytic - palekana no ka Papa 8.8–10.9 mau ʻauamo flange ikaika kiʻekiʻe kahi i kaupalena ʻia ai ka hoʻopalapala uila.

Ka lahilahi & ʻaʻahu: Mālama ʻo 4-10 µm i ka hoʻopaʻa ʻana i ke kaula kūpono a me ka geometry flange. ʻAʻole pono ke kī hou ʻana i nā hua.

500–1,200 hola paʻakai paʻakai: 5-10 mau manawa ʻoi aku ka maikaʻi ma mua o ka plating zinc maʻamau, kūpono no ka hoʻolaha ʻana i waho.

Pale wela: Kū i ka lawelawe mau ʻana a hiki i 250°C - kūpono no ka ʻenekini bay a me nā mea hoʻopili hoʻopau.

Kūlike kaiapuni: Cr⁶⁺-ʻole, RoHS a me REACH.

Hoʻohālikelike ʻili

Paakai paakai no ISO 9227 NSS. Pili ka pilikia embrittlement hydrogen i nā mea hoʻopaʻa electroplated Grade 10.9 a i luna.

Hōʻuluʻulu manaʻo

Hāʻawi ʻo Dacromet flange bolts i ka hui pū ʻana o ka pono mechanical a me ka pale corrosion. Hoʻomaʻamaʻa ka flange integral i ka hui ʻana i ka wā e puunaue like ana i ka ukana, a hāʻawi ka Dacromet zinc-aluminum flake coating i nā hola 500-1,200 o ka paʻakai paʻakai me ka ʻole o ka hydrogen embrittlement. Hoʻohana nui ʻia kēia mau mea paʻa i ka automotive, kūkulu, makani makani, a me nā noi kai kahi e pono ai ka hana clamping pono a me ka lōʻihi lōʻihi.