Nūhou ʻOihana
-
He aha ka ʻokoʻa ma waena o ka hoʻokolokolo paipu x-ray
ʻO ka hoʻohana ʻana i nā ʻano hoʻāʻo kani ultrasonic e ʻike i ka mea kani i kapa ʻia ʻo ka ultrasonic flaw detector.ʻO kāna kumu: ʻike ʻia ka hoʻolaha ʻana o ka hawewe kani ultrasonic i ka mea, nā waiwai acoustic o ka mea a me ka hoʻololi ʻana o ka hui kūloko i kekahi hopena i ka hoʻolaha ʻana o ka ul...Heluhelu hou aku -
ʻO ka uhi zinc
ʻO Zinc kahi kaʻina hana hoʻoheheʻe metallurgical.Mai ka hiʻohiʻona microscopic, ʻo ke kaʻina hana o ka hot dip galvanizing he ʻelua koena ikaika, ke kaulike wela a me ke kaulike hao hao zinc.Ke hoʻokomo ʻia ka mea hana kila ma kahi o 450 ℃ hoʻoheheʻe ʻia ka wai zinc, hoʻoheheʻe ʻia ka wai zinc absorption i loko o ka lumi.Heluhelu hou aku -
ʻO nā mea maikaʻi a me nā pōʻino o ke kila'ōwili wela
ʻO ka'ōwili wela e pili ana i nā hua'ōlelo o ka'ōwili anu, ka'ōwili anu i loko o ka mahana recrystallization ma lalo o ka'ōwili, a me ka'ōwili wela e laweʻia ma luna o ka'ōwili wela recrystallization.Pōmaikaʻi: hiki i ka ʻōwili wela ke hōʻino i ka microstructure cast o ka ingot kila, hoʻomaʻemaʻe ...Heluhelu hou aku -
Nā kumu ulia a me ka pale ʻana i nā pōʻino ʻenehana aila a me ke kinoea
ʻO nā mea pōʻino ka paipu kinoea ma lalo o nā kūlana maʻamau, lawe ʻia ke kinoea i loko o kahi ʻōnaehana paʻa, i ka wā e hiki ʻole ai ka ʻōnaehana i ka hoʻololi ʻana i ka hoʻololi ʻana o ke kinoea kūlohelohe, hui pū ʻia ke kinoea maoli me ka ea e hana i kahi kinoea pahū a hiki i ka palena pahū a i ʻole kahi hihia o e ahi ka wai ma mua o...Heluhelu hou aku -
ʻO Kina ka mea hana kila nui loa o ka honua i ke kenekulia e hiki mai ana
I kēia manawa, me ka hoʻomohala hoʻokele waiwai a me ka holomua ʻenehana, huli ka ʻoihana kila Kina i Kina.I ka manawa like, ua komo ka ulu ʻana o ka ʻoihana kila honua i kahi kahua hou.Ua like ia me Kina.Ma keʻano he mea hoʻolako i ka paipu pipeline, welded steel pipe, structural steel pipe, seamle...Heluhelu hou aku -
Ke ʻano o ka paipu kila māmā
ʻO ka paipu kila māmā e pili ana i ka mea i emi iho ma mua o 0.25% carbon steel ma muli o kona ikaika haʻahaʻa, haʻahaʻa paʻakikī a palupalu.Loaʻa i ka hapa nui o ke kila kalapona maʻamau a me ke kila kila kila kiʻekiʻe, ka hapa nui me ka ʻole o ka mālama wela i hoʻohana ʻia i nā hale ʻenekinia, kekahi carburizing ...Heluhelu hou aku