Q235C pā kila

ʻO ka pā kila Q235B he ʻano hao kalapona haʻahaʻa. ʻO ka pae aupuni GB/T 700-2006 "Carbon Structural Steel" he wehewehe maopopo. ʻO Q235B kekahi o nā huahana kila maʻamau ma Kina. He mea maʻalahi a hiki ke hoʻohana ʻia i ka hapa nui o nā huahana i koi ʻole i ka hana kiʻekiʻe.

Hanana:
(1) Ua haku ʻia ʻo Q + helu + hōʻailona papa maikaʻi + hōʻailona deoxidation. Hoʻopili mua ʻia kona helu kila me "Q" e hōʻike i ka helu hua o ke kila, a ʻo nā helu ma lalo nei e hōʻike ana i ke kumu waiwai ma MPa. No ka laʻana, hōʻike ʻo Q235 i ke kila kalapona me kahi kiko hua (σs) o 235 MPa.
(2) Inā pono, hiki ke hōʻike ʻia ka hōʻailona o ka pae maikaʻi a me ke ʻano deoxidation ma hope o ka helu kila. ʻO ka hōʻailona papa maikaʻi ʻo A, B, C, D. hōʻailona deoxidation method: F hōʻike i ke kila paila; b He kila semi-lethal; Hōʻike ʻo Z i ke kila i pepehi ʻia; ʻO ka TZ ke ʻano o ka Special Kill Steel. ʻAʻole paha he hōʻailona hōʻailona ke kila pepehi ʻia, ʻo ia hoʻi, hiki iā Z a me TZ ke waiho ʻole ʻia. No ka laʻana, kū ʻo Q235-AF no ke kila paila Papa A.
(3) ʻO ke kila kalapona kūikawā, e like me ke kila alahaka, ke kila moku, a me nā mea ʻē aʻe, hoʻohana maoli i ke ʻano o ka hoʻohālikelike ʻana o ke kila structural carbon, akā hoʻohui i kahi leka e hōʻike ana i ke kumu ma ka hopena o ka helu kila.

ʻO nā mea kemika nui o ka Q235C
C	ʻO Si	ʻO Mn	P	S
0.17	0.35	1.40	0.040	0.040

Mānoanoa (mm)
Q235C	≤ 16	> 16 ≤ 40	> 40 ≤ 60	> 60 ≤ 100	> 100 ≤ 150	> 150
Ka ikaika hua (≥Mpa)	235	225	215	215	195	185
Ka ikaika wili (Mpa)	370-500

E hoʻohana:
Loaʻa i ka Q235B kekahi elongation, ikaika, paʻakikī maikaʻi a me ka castability, a maʻalahi hoʻi e hoʻopaʻa a weld. Hoʻohana nui ʻia ia i ka hana ʻana i nā ʻāpana mechanical maʻamau. Hoʻohana nui ʻia ia e weld i nā ʻāpana kūkulu me nā koi kiʻekiʻe i ke kūkulu ʻana a me ka ʻenehana alahaka.

Hoʻokaʻawale ʻo AB i ka ʻokoʻa ma waena o Q235A a me Q235B
: He kila kalapona nā kila. Ma ka pae aupuni GB700-88, ʻo ka ʻokoʻa waiwai ma waena o Q235A a me Q235B ka mea nui i loko o ka ʻike kalapona o ke kila. ʻO ka mea kalapona o Q235A mea he 0.14-0.22%;
ʻAʻole hana ka papa Q235A i ka hoʻāʻo hopena, ʻoiai ʻo Q235B e hana i ka hoʻāʻo hopena wela o ka lumi o V-notch. Ma ka ʻōlelo pili, ʻoi aku ka maikaʻi o nā mea mechanical o ke kila i hana ʻia ma Q235B ma mua o nā mea i hana ʻia o Q235A.
Ma lalo o nā kūlana maʻamau, hōʻailona nā wili kila i ka ʻaoʻao i hoʻopau ʻia ma ka pā ʻike ma mua o ka haʻalele ʻana i ka hale hana. Hiki i nā mea hoʻohana ke hoʻoholo inā he Q235A, Q235B a i ʻole kekahi mea ʻē aʻe. P≤ 1.6MPa hoʻolālā; ʻO ka mahana hana 0 ~ 350 ° C; Ka mānoanoa o ka pā kila >=20mm