ʻO Dacromet Flange Bolts: ʻOi aku ka maikaʻi o ka hoʻokō anti-corrosion no nā noi hoʻopaʻa koʻikoʻi 

Nā Pōmaikaʻi Koʻikoʻi o Dacromet-Coated Flange Bolts

Ke hoʻohana ʻia ʻo Dacromet i nā bolts flange, ʻo ka hui pū ʻana o ka hoʻoili ukana geometric a me ka pale ʻana o ka ʻili kiʻekiʻe e hāʻawi i kahi ʻōnaehana paʻa i ʻoi aku ka maikaʻi o nā kūlana lawelawe. ʻO nā pōmaikaʻi nui he:

Kūʻē Kūʻē Kūʻē a kūʻē i ka Rust

Hōʻike ʻia ka hoʻāʻo ʻana o ke keʻena kūʻokoʻa e like me ASTM B117 a me ISO 9227 e hiki ke hoʻopaʻa ʻia kahi uhi Dacromet i hoʻopili pono ʻia ma nā bolts flange hiki ke kūpaʻa ma mua o 1,000 mau hola o ka hoʻomau ʻana i ka paʻakai paʻakai kūpaʻa me ka ʻulaʻula ʻole. I loko o nā ʻano hana he nui, ʻoi aku ka liʻiliʻi o nā huahana corrosion keʻokeʻo ma hope o ka hoʻolaha lōʻihi. Hōʻike nā haʻawina hoʻohālikelike ʻo Dacromet ma mua o ka hoʻoheheʻe zinc maʻamau ma kahi helu ʻehiku a ʻumi a ʻoi aku ma mua o ka galvanizing hot-dip i ka paʻa kiʻiʻoniʻoni lahilahi a me ka kūpaʻa pale lōʻihi. ʻOi aku ka ʻoi aku o ke ola lawelawe honua maoli ma kahakai, ka moana, a me nā lewa ʻoihana ma mua o ka ʻumikūmālima a i ka iwakālua mau makahiki ke kuhikuhi pololei ʻia a hoʻohana ʻia ka ʻōnaehana pale.

Kūʻokoʻa mai ka Embrittlement Hydrogen

ʻOi aku ka maʻalahi o nā puʻupuʻu flange kiʻekiʻe i ka haki ʻana i ka hydrogen. No ka mea, ʻaʻole electrolytic holoʻokoʻa ke kaʻina hana Dacromet a pale i ka hoʻomākaukau ʻana i ka ʻili, ʻaʻohe hydrogen atomic i hana ʻia a komo i loko o ka microstructure kila. Ua hōʻoia ka hoʻāʻo ʻana i ka hōʻoia ʻana i nā bolts structural bolts ASTM A490 a me nā māka ikaika kiʻekiʻe like ʻole ʻaʻole hoʻokomo ʻo Dacromet i ka embrittlement hydrogen kūloko a i ʻole hoʻolaha i ka embrittlement hydrogen kaiapuni ma lalo o nā kūlana lawelawe.

ʻOi aku ka lahilahi, ka uhi ʻano like ʻole me nā milo pololei

ʻOi aku ka lahilahi o ka mānoanoa kiʻiʻoniʻoni Dacromet maʻamau o 5–12 µm ma mua o ka galvanizing hot-dip (pinepine 50–80 µm). No laila, hoʻomau pololei ʻia nā ʻaoʻao o ka milo a me nā radii aʻa, e ʻae ana i nā nati maʻamau e ʻākoakoa maikaʻi me ka ʻole o ka nui o nā paʻi a i ʻole nā ​​haʻawina pili. Hoʻokomo pū ka uhi ʻana i nā ʻaoʻao, nā kīʻaha ma lalo o ke poʻo, a me ka ʻaoʻao ma lalo o ke poʻo bolt, e hāʻawi ana i ka uhi anti-corrosion mau kahi e waiho ai ka plating maʻamau i nā ʻāpana lahilahi a porous paha.

ʻO ke kūpaʻa wela a me ka lōʻihi o ka mīkini

Mālama ʻo Dacromet i ka kūpaʻa palekana i nā mahana lawelawe mau a hiki i ka 300 ° C a ʻae i ka ʻike pōkole ma mua o kēlā paepae. Hōʻike ka uhi i ka hoʻopili maikaʻi ʻana, ka pale ʻana i ka abrasion i ka wā o ka lawelawe ʻana a me ka hoʻokomo ʻana, a me ka lubricity i hoʻomalu ʻia e kōkua i ka pilina torque-tension paʻa-ʻoi aku ka waiwai no nā hui puʻupuʻu flange kahi mea koʻikoʻi.

Kaiapuni a me ka hooponopono ana

Ma ke ʻano he ʻōnaehana wai me ka ʻole o ka cadmium, ke alakaʻi, a me (i nā ʻano hana hou) hexavalent chromium hopohopo ke hoʻokele pono ʻia, kākoʻo ʻo Dacromet i ka hoʻokō ʻana i nā kuhikuhi RoHS, REACH, a me ELV. Hoʻopuka ke kaʻina hana i nā ʻōpala pōʻino liʻiliʻi i hoʻohālikelike ʻia me nā laina electroplating kuʻuna, e kūlike me nā koi hoʻomau o kēia manawa no nā mea hoʻopaʻa ʻoihana.

Nā kahua hoʻohana mua no ka Dacromet Flange Bolts

ʻO ka hui pū ʻana o ka hilinaʻi paʻa kiʻekiʻe a me ka hana anti-rust no ka wā lōʻihi e hana ai ʻo Dacromet flange bolts i ka koho i makemake ʻia ma nā ʻoihana he nui.

Infrastructure and Civil Engineering: ʻO nā hui hoʻonui alahaka, nā hale kiʻi kila, nā hale kiaʻi hoʻouna, a me nā hale kahakai i ʻike ʻia i nā lewa chloride.

ʻEhukai a me waho: ʻO ka hale kiaʻi makani turbine a me nā pilina paʻa nacelle, ka ʻaila a me ka ʻea pipeline flanges, nā lako o lalo o ka moana, a me nā ʻōnaehana kau ʻana o ka lā e koi ana i nā makahiki he ʻumi o ka mālama ʻana i ka corrosion me ka mālama ʻole.

Kaʻa a me nā mea kaumaha: ʻO Chassis, hoʻokuʻu ʻia, a me ka powertrain flange bolts kahi e ʻike ai i ke ala paʻakai a me ka paikikala wela e koi ai i ka hoʻopau anti-corrosion ikaika me ka ʻole o ka hoʻokō ʻana i ka hana bolt ikaika kiʻekiʻe.

Ka Hana Kemika a me ke Kai: ʻO nā ala hele o ka moku kaomi, ka pāpaʻi a me nā ʻāpana valve, nā lako moku moku, a me nā ʻōnaehana awa i hoʻopaʻa ʻia i nā kemika a i ʻole ka paʻakai.

Kaʻaahi a me ka lawe ʻana: E hahai i nā ʻōnaehana hoʻopaʻa a me nā hui ʻōwili e pōmaikaʻi ana i ke kūpaʻa haʻalulu i hui pū ʻia me ka pale ʻoi aku ka maikaʻi.

Nā Manaʻo koho a me ka hōʻoia maikaʻi

ʻO ka wehewehe ʻana i nā bolts flange Dacromet e pono i ka nānā ʻana i kekahi mau mea pono. Pono ka mānoanoa o ka uhi ʻana (e laʻa, Dacromet 320 versus Dacromet 500 series) i ka ʻāpana corrosivity i manaʻo ʻia a me ka helu friction pono. No nā palapala hoʻolālā, pono e hoʻokō ka mea bolt kumu a me ka papa waiwai i nā kūlana ASTM, ISO, a i ʻole EN kūpono, ʻoiai ʻo ka hoʻopau ʻana o Dacromet pono e hoʻopili ʻia e ka mea laikini laikini a i ʻole ka hana kūpono e hiki ke hoʻopaʻa i ka hoʻoheheʻe ʻana a i ʻole ka hoʻoheheʻe ʻia a mālama ʻia.

ʻO ka hōʻoia maikaʻi ka mea maʻamau e pili ana i ka nānā ʻana no ka hiʻohiʻona kala-hina, hoʻāʻo adhesion, ana mānoanoa o ka uhi ʻana, a me ka hoʻāʻo ʻana i ka paʻakai a i ʻole cyclic corrosion hoʻāʻo ma nā laʻana hana. Ke manaʻo ʻia ka pahu flange i uhi ʻia no ka hoʻohana ʻana me nā nati i uhi ʻia ʻo Dacromet, hiki ke ʻike ʻia nā hiʻohiʻona torque-tension; hiki i ka hui ʻana me nā mea hoʻopau like ʻole (e laʻana, nā nati i hoʻopaʻa ʻia i ka zinc) hiki ke hoʻololi i ka hakakā a pono e pale ʻia ke ʻole e hōʻoia ʻia e ka hoʻāʻo ʻana.

ʻO ka mālama pono ʻana a me ka mālama ʻana e mālama hou i ka hana anti-corrosion o Dacromet flange bolts. ʻOiai paʻa ka uhi ʻana, pono e hōʻemi ʻia ka hoʻolaha ʻana i waho o nā hui i hoʻopau ʻole ʻia a i ʻole ka launa pū ʻana me nā kinikona kūpono ʻole a hiki i ka hoʻokomo hope ʻana.

Ka hopena

ʻO nā bolts flange Dacromet e hōʻike ana i kahi hopena oʻo, hana kiʻekiʻe no nā ʻenekini e ʻimi nei i nā hui bolted hilinaʻi i nā wahi lawelawe corrosive. Ma ka hoʻohui ʻana i nā pono mīkini o kahi flange hoʻohui - hoʻomaikaʻi i ka hāʻawi ʻana i ka ukana a me ka hoʻemi ʻana i ke koʻikoʻi o ka bearing-surface - me ka pale ʻana i ka corrosion multi-mechanism o ka zinc-aluminum flake coating, hāʻawi kēia mau mea hoʻopaʻa i ka hana anti-rust lōʻihi, kūʻokoʻa mai ka hydrogen embrittlement, thermal stability, a me ke ʻano kūlike.

Inā hoʻonoho ʻia ma nā alahaka kahakai, nā kumu makani o waho, nā flanges mea kanu kemika, a i ʻole nā ​​chassis kaʻa kaumaha, ʻo Dacromet-coated flange bolts e hōʻemi i nā manawa mālama, hoʻonui i ke ola lawelawe ʻana, a hoʻemi i ka huina o ke kumukūʻai e pili ana i nā hemahema pili i ka corrosion. Ke paʻa nei nā hoʻoponopono kaiapuni a me ka ulu ʻana o ka noi no ka ʻoihana paʻa, ke hoʻomau nei ka ʻenehana a me ka hoʻokele waiwai no ka wehewehe ʻana iā Dacromet ma nā bolts koʻikoʻi.

I ka hōʻuluʻulu manaʻo, ʻo ka hui pū ʻana o ka ʻenekinia honua kiʻekiʻe a me ka geometry fastener optimized e hoʻolilo iā Dacromet flange bolts i mea waiwai nui i ka hoʻolālā hoʻolālā pale-corrosion hou.