Ntchito

1. Ma purlins onse omwe ali pamwambawa ndi otentha-kuviika kanasonkhezereka zitsulo amakona anayi purlins, galvanizing kuchuluka ndi 250 ~ 275g/m², ndipo zakuthupi ndi Q235B.

2. Kukula kwa malo kumafunika kufufuzidwa musanamangidwe.

3. Zina zomwe sizinatchulidwe zizigwirizana ndi zomwe dziko likufuna.

4. Kuyika kotsatizana ndi: kunyamula mpira - mpira wa zingwe zapansi, ndodo - ndodo ya mimba - mpira wa chingwe pamwamba, ndodo.

Chitsulo: Pokhapokha ngati tafotokozera, mapaipi onse achitsulo amapangidwa ndi chitsulo cha Q235B.Kapangidwe kake ka mankhwala ndi makina ake azitsatira zomwe zili muyeso wapano "Carbon Structural Steel" (GB/T700-2006).Mphamvu zamakokedwe, kutalika, malo otulutsa, kuyesa kopendekera kozizira komanso kulimba kwazinthu ziyenera kutsimikiziridwa kuti ndizoyenera, komanso zomwe zili mu sulfure, phosphorous ndi kaboni ziyenera kutsimikiziridwa kuti zikwaniritse zofunikira.Kulekerera kwa makulidwe a mbale yachitsulo kudzakwaniritsa zofunikira pakuchita chivomezi chachitsulo mu "Miyeso, Mawonekedwe, Kulemera ndi Kulekerera kwa Zitsulo Zotentha ndi Zitsulo":

1) Chiŵerengero cha mtengo woyezera mphamvu ya zokolola za zitsulo ku mtengo woyezera wa mphamvu yachitsulo sichiyenera kukhala yaikulu kuposa 0,85;

2) Chitsulocho chiyenera kukhala ndi zokolola zoonekeratu, ndipo elongation siyenera kukhala yosachepera 20%;

3) Chitsulocho chiyenera kukhala ndi weldability wabwino ndi oyenerera amakhudza kulimba.