



ʻO ke uea kila prestressed kahi uea kila kalapona kiʻekiʻe i hana ʻia ma o ka mālama wela a me ka hana anu. Ua hoʻolālā kūikawā ʻia e hoʻokō i nā koi o ka hoʻoikaika ʻana i ka sima prestressed. Loaʻa i ke uea kila ka nui o ke kalapona o 0.65% a i 0.85% a ʻo ka nui o ka sulfur a me ka phosphorus he haʻahaʻa ma lalo o 0.035%, e hōʻoiaʻiʻo ana i ka ikaika tensile maikaʻi loa a me ke kūpaʻa. Mai kona hana ʻoihana a me ka hoʻohana ʻana i nā makahiki 1920, ua ulu nui ke uea kila prestressed a i kēia manawa ua hoʻopuni i kahi ākea o nā huahana kūpono no nā noi like ʻole.
He ikaika maikaʻi loa ka uea kila prestressed, me ka ikaika tensile liʻiliʻi loa o 1470MPa. Ua loli nā pae ikaika i nā makahiki, e neʻe ana mai ka 1470MPa mua a me 1570MPa i ka 1670-1860MPa o kēia manawa. Ua loli pū ke anawaena o ka uea kila, mai 3-5 mm a i 5-7 mm. Hāʻawi kēia ʻano kikoʻī i ka maʻalahi a me nā koho no nā ʻano papahana kūkulu like ʻole, e ʻae ana i nā ʻenekinia e koho i ka ikaika a me ka nui kūpono loa no kā lākou noi kikoʻī.
Hāʻawi ka mākeke uea kila prestressed i nā ʻano huahana like ʻole me nā ʻano like ʻole e hoʻokō ai i nā pono like ʻole. ʻO kēia mau mea me ke uea kila i huki anu ʻia, ke uea kila i hoʻopololei ʻia a hoʻomaʻamaʻa ʻia, ke uea kila hoʻomaha haʻahaʻa, ke uea kila galvanized, ke uea kila i helu ʻia, a pēlā aku. Hoʻokumu kēia mau huahana i ke kua o nā kaula kila prestressed a ua lilo i nā ʻano kila prestressed i hoʻohana nui ʻia ma ka honua. Hiki i kēia ʻano like ʻole i nā mea hoʻohana ke loaʻa i ke kūpono kūpono no kā lākou mau koi kikoʻī, e hōʻoiaʻiʻo ana i ka pono a me ka hana kiʻekiʻe loa.
ʻO kekahi o nā ʻano nui o ke kaula kila prestressed ʻo ia kona ikaika tensile kiʻekiʻe. ʻO kēia ikaika, i hui pū ʻia me nā kaohi paʻa ma ke kalapona, sulfur a me ka phosphorus, e hōʻoiaʻiʻo ana i ka hana hilinaʻi a me ke kūpaʻa o ka hoʻoikaika sima prestressed. ʻO ka hiki o ke kaula ke mālama ʻia i ka wela a hana anu ʻia e hoʻonui hou aku i kona mau waiwai mechanical, e kū ai i ka pala, ka luhi a me ke kaumaha. Ua hoʻolālā ʻia ke kaula kila prestressed e kū i ke kaomi ikaika, e hāʻawi ana i ka paʻa a me ka ikaika lōʻihi i ka hale.
Hoʻohana nui ʻia nā uea kila prestressed i ka ʻoihana kūkulu hale. Hoʻohana nui ʻia ia i nā hale sima prestressed e like me nā alahaka, nā hale kiʻekiʻe, nā tunnels, nā ala kaʻaahi, a ma ka ʻoihana sima precast. He mea nui ka ikaika a me ka hilinaʻi o nā uea kila i ka hoʻoikaika ʻana i kēia mau hale, e hōʻoia ana e kūʻē lākou i nā mana o waho e like me nā ōlaʻi a me nā ukana kaumaha. ʻO kāna hana kiʻekiʻe, palekana a me ke kūpaʻa i hoʻohālikelike ʻia me nā mea hoʻoikaika kuʻuna e lilo ia i koho mua no nā papahana kūkulu koi a puni ka honua.
I ka hopena, he mea hana maʻalahi a hilinaʻi hoʻi ka uea kila prestressed i hoʻohana nui ʻia i ka ʻoihana kūkulu hale. Me kona mau hiʻohiʻona kūikawā, ka laulā o nā huahana a me ka mālama pono ʻana i nā kikoʻī, hāʻawi ia i ka ikaika a me ke kūpaʻa e pono ai no nā noi paʻakikī o ka sima prestressed. Inā he alahaka, hale a i ʻole kekahi ʻano hana ʻē aʻe, hāʻawi ka uea kila prestressed i nā ʻenekinia a me nā limahana kūkulu hale me kahi hopena hilinaʻi no ka hana ʻana i nā hale kūpaʻa a lōʻihi.
Ma ke ʻano he alakaʻi ʻoihana ʻoihana metala Kina, ʻo ke kālepa kila aupuni a me ka logistics "Hunerd good faith enterprise", ʻo Kina kila kālepa ʻoihana, "Top 100 private enterprises in Shanghai". Lawe ʻo Shanghai Zhanzhi industry Group Co., Ltd.,(i hoʻopōkole ʻia i Zhanzhi Group) i ka "Integrity, Practicality, Innovation, Win-Win" ma ke ʻano he loina hana hoʻokahi, e hoʻomau mau ana i ka hoʻokō ʻana i ka noi o ka mea kūʻai aku ma kahi mua.


