Pākuʻi ʻeleʻele ʻOxide Pālua-hopena 

ʻO ka papa 8.8 ʻeleʻele oxide lua-hopena he mau mea hoʻopaʻa milo ikaika me ka ikaika e hōʻike ana i ka wili ʻana ma nā ʻaoʻao ʻelua me kahi kikowaena kumu ʻole. Hoʻohui lākou i ka hana mechanical hilinaʻi (800 MPa tensile ikaika), ka pale ʻana i ka corrosion waiwai ma o ka uhi hoʻololi Fe3O4 lahilahi, a me ka hoʻonohonoho pono ʻana no nā mīkini ʻenehana, kaʻa, a me nā noi hana.

1. Papa 8.8 Hoʻohui

No ISO 898-1, ʻo ka inoa "8.8" ʻo ia hoʻi ka ikaika tensile nominal o 800 MPa a me ka ratio hua o 0.8 (ikaika 640 MPa). Hana ʻia mai ke kila ʻala kalapona i hoʻopaʻa ʻia a hoʻonanea ʻia, hāʻawi ʻo Grade 8.8 i kahi koena ikaika-a-uku.

Papa 1 — Nā Pono Mekani Nui (ISO 898-1)

2. Hoʻomaʻamaʻa i ka ʻili o ka ʻeleʻele

ʻO ka ʻeleʻele ʻeleʻele (Fe3O4) he mea hoʻololi kemika he 0.5-1.5 micrometers ka mānoanoa, i hana ʻia e ka hoʻokomo ʻana i loko o kahi ʻauʻau ʻauʻau alkaline nitrate wela ma 140-150C. ʻAʻole like me ka electroplating, ʻaʻole ia e hoʻololi i ka dimensional a ʻaʻohe hydrogen embrittlement. Ke hoʻopaʻa ʻia me ka aila pale-rust, hāʻawi ia i nā hola 96 o ka paʻakai paʻakai.

Papa 2 — Na Mea Hoolele Oxide Eleele

3. Hoʻolālā Papalua-hopena Stud

He wīwī ko ka papa ʻaoʻao ʻelua (hoʻopaʻa ʻia i loko o ka lua i hoʻopaʻa ʻia) a me ka ʻaoʻao nati (ʻae i ka nati), i hoʻokaʻawale ʻia e kahi kaula i hoʻopaʻa ʻole ʻia. ʻO 1.0-1.5d ka lōʻihi o ka hopena a me ka hopena nut 2.0-3.0d, kahi d ka anawaena inoa.