Ukuqulunqwa kwemichiza
Ipleyiti yentsimbi ye-Q235B luhlobo lwentsimbi ephantsi yekhabhoni. Umgangatho wesizwe we-GB / T 700-2006 "I-Carbon Structural Steel" inenkcazo ecacileyo. I-Q235B yenye yeemveliso zentsimbi eziqhelekileyo e-China. Ayibizi kwaye ingasetyenziswa kwiimveliso ezininzi ezingadingi ukusebenza okuphezulu.
Indlela:
(1) Iqulunqwe ngu-Q + inombolo + isimboli yebakala lomgangatho + isimboli ye-deoxidation. Inombolo yayo yentsimbi ifakwe kwi-"Q" ukumela isivuno sentsimbi, kwaye amanani alandelayo amele ixabiso lexabiso lesivuno kwi-MPa. Ngokomzekelo, i-Q235 imele i-carbon structural steel kunye nenqaku lesivuno (σs) se-235 MPa.
(2) Ukuba kuyimfuneko, isimboli sebakala lomgangatho kunye nendlela ye-deoxidation ingabonakaliswa emva kwenombolo yentsimbi. Isimboli yebakala lomgangatho ngu-A, B, C, D. isimboli yendlela ye-deoxidation: F imele intsimbi ebilayo; b Imele intsimbi ebulalayo; Z imele intsimbi ebuleweyo; I-TZ ithetha iSpecial Kill Steel. Intsimbi ebuleweyo ayinakuba nesimboli sokumakisha, oko kukuthi, zombini i-Z kunye ne-TZ inokushiywa ingaphawulwa. Umzekelo, i-Q235-AF imele iClass A ebilayo yentsimbi.
(3) Intsimbi yekhabhoni yenjongo ekhethekileyo, efana nentsimbi yebhulorho, intsimbi yenqanawa, njl.njl., ithatha ngokusisiseko indlela yokubonakalisa i-carbon structural steel, kodwa yongeza ileta ebonisa injongo ekupheleni kwenombolo yentsimbi.
Ukwakhiwa kweekhemikhali eziphambili ze-Q235C |
C |
Si |
Mnu |
P |
S |
0.17 |
0.35 |
1.40 |
0.040 |
0.040 |