Q235C mbale yachitsulo

Q235B zitsulo mbale ndi mtundu wa otsika mpweya zitsulo. Mtundu wamtundu wa GB/T 700-2006 "Carbon Structural Steel" uli ndi tanthauzo lomveka bwino. Q235B ndi imodzi mwazinthu zodziwika bwino zachitsulo ku China. Ndizotsika mtengo ndipo zitha kugwiritsidwa ntchito pazinthu zambiri zomwe sizifuna kuchita bwino kwambiri.

Njira:
(1) Amapangidwa ndi Q + nambala + chizindikiro cha kalasi yabwino + chizindikiro cha deoxidation. Nambala yake yachitsulo imayikidwa ndi "Q" kuti iwonetsere zokolola zachitsulo, ndipo manambala otsatirawa akuyimira mtengo wamtengo wapatali mu MPa. Mwachitsanzo, Q235 imayimira chitsulo chopangidwa ndi mpweya chokhala ndi mfundo yotulutsa (σs) ya 235 MPa.
(2) Ngati kuli kofunikira, chizindikiro cha kalasi yamtundu wabwino ndi njira ya deoxidation ikhoza kuwonetsedwa pambuyo pa nambala yachitsulo. Chizindikiro cha kalasi yapamwamba ndi A, B, C, D. chizindikiro cha njira yowonongeka: F imayimira chitsulo chowira; b Imayimira chitsulo chosatha; Z imayimira chitsulo chophedwa; TZ amatanthauza Special Kill Steel. Chitsulo chophedwa sichingakhale ndi chizindikiro, ndiko kuti, Z ndi TZ zonse zikhoza kusiyidwa popanda chizindikiro. Mwachitsanzo, Q235-AF imayimira Gulu A chitsulo chowira.
(3) Chitsulo cha carbon cha cholinga chapadera, monga zitsulo za mlatho, zitsulo za sitima, ndi zina zotero, zimatengera njira yowonetsera zitsulo za carbon structural, koma zimawonjezera kalata yosonyeza cholinga kumapeto kwa nambala yachitsulo.

Zomwe zimapangidwa ndi mankhwala a Q235C
C	Si	Mn	P	S
0.17	0.35	1.40	0.040	0.040

Makulidwe (mm)
Q235C	≤16	> 16 ≤40	> 40 ≤ 60	> 60 ≤ 100	> 100 ≤ 150	> 150
Mphamvu zokolola (≥Mpa)	235	225	215	215	195	185
Tensile mphamvu (Mpa)	370-500

Gwiritsani ntchito:
Q235B ili ndi elongation, mphamvu, kulimba kwabwino komanso kutsika, ndipo ndiyosavuta kuyimitsa ndikuwotcherera. Amagwiritsidwa ntchito kwambiri popanga mbali zambiri zamakina. Amagwiritsidwa ntchito kwambiri kuwotcherera zigawo zomangika zomwe zili ndi zofunikira zapamwamba kwambiri pakumanga ndi uinjiniya wa mlatho.

AB imasiyanitsa kusiyana pakati pa Q235A ndi Q235B
: Zitsulo zonse ndi carbon steel. Mu muyezo wadziko lonse GB700-88, kusiyana kwa zinthu pakati pa Q235A ndi Q235B makamaka kumakhala mu kaboni wachitsulo. Mpweya wa carbon wa Q235A ndi 0.14-0.22%;
Gulu la Q235A silimayesa mayeso, pomwe Q235B imayesa kutentha kwa chipinda cha V-notch. Kunena zoona, makina achitsulo opangidwa ndi Q235B ndiabwino kwambiri kuposa opangidwa ndi Q235A.
Nthawi zonse, mphero zachitsulo zimayika mbiri yomalizidwa pa mbale yodziwikiratu musanachoke kufakitale. Ogwiritsa atha kudziwa ngati zomwe zili pa mbale yozindikiritsa ndi Q235A, Q235B kapena zinthu zina. Kupanikizika kwa mapangidwe P≤ 1.6MPa; Kutentha kwa ntchito 0 ~ 350 ° C; Kulemera kwa mbale zachitsulo> = 20mm