He aha ke ʻano o ka hao a me ke kila i kūpono i nā wili kumu 12.9 hex maoli

Papa 12.9 nā wili a me nā ʻūlū e nānā i nā wili ikaika kiʻekiʻe kiʻekiʻe i hana ʻia me 35CrMo, 42CrMo, a me nā mea kila kila B7, me ka ikaika tensile haʻahaʻa o 1220Mpa a me ka paʻakikī o 39-44HRC. Hoʻohana nui ʻia ia i ka textile, hydraulic, injection molding, a me nā ʻoihana mīkini ma ka home.

1. ʻO ka 12.9 grade screw e pili ana i kahi wili ikaika kiʻekiʻe loa i hana ʻia me ka mea kila kila SCM435, me ka ikaika tensile haʻahaʻa o 1220Mpa a me ka paʻakikī o 39-44HRC. Hoʻohana nui ʻia ia i ka textile, hydraulic, injection molding, a me nā ʻoihana mīkini ma ka home.

2. Wahi a ka mea, hiki ke hoʻokaʻawale ʻia i nā ʻano like ʻole e like me12.9 papa hexagonal bolts waho, 12.9 papawili poʻo hexagonal kūloko(ke poʻo kīʻaha), 10.9 papa countersunk poʻo i loko hexagonal wiliwili (flat kiaha), 10.9 papa semi poepoe poʻo i loko hexagonal wiliwili (poepoe kīʻaha), 12.9 papa hoʻonohonoho wiliwili (mikini mika), 12.9 papa i loko hexagonal plug wiliwili, etc. ʻo ka milo, ua māhele ʻia ʻo ia i loko o ka milo coarse, fine thread, metric, British, American, etc.

3. ʻO ka papa 12.9 ka ʻano kiʻekiʻe o nā wili, me ka paʻakikī kiʻekiʻe a me ka ikaika tensile. Hiki i kona paakiki Rockwell (HRC) ke hiki i 39-44, a hiki i kona ikaika tensile ke hiki i 1220N/mm2. Eia nō naʻe, ma muli o nā ʻano ʻano like ʻole o ka hana ʻana, nā ʻāpana hex countersunk (nā kīʻaha pālahalaha) a me nā ʻāpana hex poʻo poʻo hapa poʻo (nā kīʻaha pōʻai) i hana ʻia mai ka mea like hiki ke loaʻa i ka ikaika tensile haʻahaʻa o ka papa 10.9. Hiki iā ia ke hoʻokō piha i nā koi kiʻekiʻe o nā ʻoihana ʻoihana a me nā ʻoihana mining no nā mea hoʻopaʻa i nā manawa kūikawā a me nā ʻāpana.

Ningbo Zhongli bolts manufacturing co.ltd lako wale no ka papa maoli 12.9Hex socket screws DIN912, ISO4762, he 21 mau makahiki o ka hana hana.