ʻO Dacromet Hexagonal Bolts- Kūʻē Kūʻē Kūʻē & Hoʻopaʻa Paʻa Anti-Rust 

2. He aha ka Dacromet Coating?

ʻO Dacromet kahi ʻōnaehana hoʻoheheʻe zinc-aluminum i hoʻomohala ʻia ma ke ʻano he ʻokoʻa ʻē aʻe i ka electroplating maʻamau. Aia ka uhi ʻana i nā flakes zinc overlapping a me nā flakes alumini i loko o kahi mea hoʻopili inorganic. Ke hoʻohana ʻia i nā bolts hexagonal a hoʻōla ʻia ma kahi o 300 ° C, hana ia i kahi pale paʻa, multi-layered e hāʻawi maikaʻi ʻia. kūʻokoʻa a kuʻi-corrosion hoʻokō.

ʻO nā hiʻohiʻona nui o ka uhi ʻana o Dacromet ma nā bolts:

• Kiʻiʻoniʻoni lahilahi: ʻO ka maʻamau he 4-12 μm wale nō (pinepine 6-8 μm), e mālama ana i ka geometry thread a kūpono i nā bolts hexagonal pololei.
• Paʻa + pale ʻālana: Hoʻopaʻa ʻia ka zinc a me nā flakes alumini i ka makū/oxygen a hāʻawi i ka pale galvanic (ʻālana) o ka substrate kila.
• Ka uhi like ole: ʻO ka hoʻohana ʻana i ka dip-spin a i ʻole ka spray spray e hōʻoia i ka uhi maikaʻi ʻana i nā geometries paʻakikī, e komo pū ana me nā milo hohonu a me ke poʻo hexagonal.
• ʻAno: ʻO ka hoʻopau ʻana i ka matte metala hina hina, kūpono no ka hoʻohana hana a me ka nani.

3. Nā Pōmaikaʻi Nui o Dacromet Hexagonal Bolts

Kū'ē Kū'ē Kū'ē & Hana Kū'ē

ʻOi aku ka maikaʻi o nā bolts hexagonal i uhi ʻia ʻo Dacromet pale ʻino a lōʻihi kūʻokoʻa hiki. ʻOiai he 4-8 μm wale nō ka uhi ʻana, kū mau kēia mau bolts i ka hoʻāʻo ʻana i ka paʻakai paʻakai kūʻokoʻa (ASTM B117 / ISO 9227) no nā hola ʻoi aku ma mua o 1,000-a pinepine 1,200 a ʻoi aku i 2,000 mau hola-me ka ʻulaʻula ʻole. He 7-10 mau manawa ʻoi aku kēia ma mua o ka electro-galvanizing maʻamau (100-300 hola) a me ka hoʻokūkū a ʻoi aku paha ma mua o nā mea hoʻopau wela wela.

Hoʻopaʻa ʻia ka ʻāpana zinc-aluminum flake multi-layer i ka makū, oxygen, a me nā chlorides. ʻOiai inā i hōʻino ʻia i ka ʻāina, hoʻomau ka hana kaumaha o ka zinc i ka pale ʻana i ka substrate bolt, e hoʻonui ai i ka holoʻokoʻa. pale ʻana i ka rust. ʻO kēia ka mea i kūpono i nā bolts hexagonal Dacromet no nā kahakai, kai, kaʻa ma lalo o ke kino, a me nā wahi ʻoihana.

ʻO ka pilikia o ka hoʻoheheʻe ʻia ʻana o ka hydrogen

ʻO kahi pōmaikaʻi koʻikoʻi no nā bolts hexagonal ikaika kiʻekiʻe ʻo ka nele loa o ka pilikia embrittlement hydrogen. Hoʻokomo ʻia ka electroplating i ka hydrogen atomic i loko o ke kila, hiki ke hoʻolohi i ka haki ʻana i nā papa 10.9, 12.9, a me nā bolts kūkulu e like me ASTM A490. ʻAʻole electrolytic ʻo Dacromet a pale i ka pickling acid aggressive, no laila ʻaʻohe hydrogen i hoʻokomo ʻia. ʻO Dacromet ikaika kiʻekiʻe nā kī no laila, ʻaʻole pono e hoʻomoʻa ʻia ma hope o ka hoʻopaʻa ʻana a hāʻawi i ka hilinaʻi kiʻekiʻe aʻe i nā hui koʻikoʻi palekana. He nui nā OEM kaʻa e kuhikuhi iā Dacromet a i ʻole nā ​​mea like me ka zinc-flake coatings no kēia kumu.

Kūleʻa wela kiʻekiʻe

ʻO nā uhi Dacromet e mālama i ka pono a me ka pono kuʻi-corrosion hana ma nā wela mau a hiki i 300°C. Hoʻohaʻahaʻa ʻia ka zinc electroplating maʻamau ma luna o 100-120 ° C, ʻoiai ʻo ka galvanizing wela ka palena haʻahaʻa. Ua kūpono kēia kūpaʻa wela i nā bolts hexagonal Dacromet no nā keʻena mīkini, nā ʻōnaehana exhaust, nā umu ʻenehana, a me nā mea hana mana kahi e hoʻopili ai i ka ikaika a me ka wā lōʻihi. pale ʻana i ka rust koi ʻia.

4. Hoʻohālikelike Hana

Hoʻohālikelike ka papa ma lalo nei i ka Dacromet me nā uhi ʻokoʻa maʻamau i hoʻohana ʻia ma nā bolts hexagonal.

Papa 1. Nā pae hana maʻamau no ka uhi ʻana i nā bolts hexagonal kila. ʻOkoʻa nā hopena maoli me nā ʻāpana kaʻina a me ka mānoanoa.

5. Nā noi maʻamau

Mahalo iā luna kuʻi-corrosion, kūʻokoʻa, pale wela, a me ke kuokoa mai ka hydrogen embrittlement, Dacromet hexagonal bolts ua hoohana nui ia ma:

5.1 ʻOihana Kaʻa

ʻO nā ʻāpana Chassis, nā ʻōnaehana hoʻokuʻu, nā hui hoʻoheheʻe, nā puʻu mīkini, a me nā noi ma lalo o ke kino. ʻO kēia mau mea nā kī pono e pale i ka paʻakai alanui, ka makū, ka paikikala wela, a me ka haʻalulu. He mea koʻikoʻi ka loaʻa ʻole o ka hydrogen embrittlement no nā mea hoʻopaʻa kiʻekiʻe 10.9 a me 12.9 i nā mea hoʻopili palekana.

5.2 Ke kūkulu ʻana, ka ʻenehana a me ka ʻenekinia kaumaha

ʻO nā alahaka, nā hale kila, nā hale kiaʻi hoʻouna, nā turbine makani, a me nā mīkini kaumaha e pono ai no ka wā lōʻihi pale ʻino. Hāʻawi nā bolts hexagonal Dacromet i ka hilinaʻi pale ʻana i ka rust ma waho a ma nā kaiapuni kahakai ʻoiai e mālama pono ana i ka hana kūpono a me ka hana tensile kiʻekiʻe.

5.3 Kaiapuni moana, Offshore & Chemical

ʻO ka ʻūhū paʻakai, ka haʻahaʻa mau, a me ka hoʻolaha ʻana i nā mea kemika makemake nui kuʻi-corrosion hoʻokō. Hoʻohana ʻia nā bolts hexagonal i uhi ʻia ʻo Dacromet ma luna o nā lako moku, nā paepae o waho, nā ʻenehana awa, a me nā mea hoʻopaʻa hana-mea kanu kahi e hāʻule koke ai nā pani zinc maʻamau.

5.4 Nā hoʻohana ʻoihana ʻē aʻe

ʻO nā ʻāpana kaʻaahi, nā lako mahiʻai, nā lako hana mana, a me nā mīkini ʻenehana maʻamau e pōmaikaʻi mai ka hui pū ʻana o ka ikaika mechanical, ka pololei ʻana, a me ka lōʻihi. kūʻokoʻa pale i hāʻawi ʻia e Dacromet hexagonal bolts.

6. Ka hopena

Hāʻawi ʻo Dacromet hexagonal bolts i kahi hopena maikaʻi loa no nā noi e koi ana i ka hana mechanical kiʻekiʻe me ka maikaʻi. kuʻi-corrosion a kūʻokoʻa palekana. Me ka pale ʻana i ka paʻakai i ʻoi aku ma mua o 1,000 mau hola, ʻaʻohe pilikia o ka hoʻoheheʻe ʻana o ka hydrogen, ke kūpaʻa wela i 300°C, a me ka uhi conformal lahilahi e mālama pono ai i ke kaula, Dacromet-coated. nā kī e lanakila i nā palena o ka hoʻoheheʻe zinc maʻamau a ʻoi aku ka maikaʻi ma mua o ka hoʻoheheʻe wela wela ma nā wahi koʻikoʻi.