Dab tsi yog qhov sib txawv ntawm Q195, Q215, Q235, Q255 thiab Q275 raws li cov khoom siv?
Cov qauv hlau ua hluav taws xob yog cov ntau tshaj plaws siv hlau, ntau tshaj plaws ntawm feem ntau yob mus rau hauv cov hlau, feem ntau tsis tas yuav muaj tshav dav hlau ua kom sov, feem ntau yog rau cov qauv dav dav thiab cov engineering.
Q195, Q215, Q235, Q255, Q225, thiab lwm yam, qauv hlau los ntawm tus neeg muaj txiaj ntsig ntawm cov ntawv sau (Q), cov txiaj ntsig zoo, cov cim zoo thiab lwm yam cim (a , B, C, D) deoxyenation txoj kev ntawm cov cim thiab yog li ntawm plaub ntu ntawm cov khoom sib xyaw ua ke. Los ntawm cov tshuaj lom neeg muaj pes tsawg leeg, cov qhab nia me me Q195, Q215, Q225, Q275 qib loj, cov ntsiab lus manganese, qhov ntau ruaj khov nws cov plasterity. Cov cuab yeej kho tshuab los ntawm cov ntsiab lus, cov qib siab saum toj no qhia tau hais tias cov tuab ≤ 16 hli ntawm cov txiaj ntsig ntawm cov hlau. Nws lub zog tensile yog: 315-430, 335-450, 375-450, 37-550, 49030 (obn2); Qi nws elongation yog: 33, 31, 26, 24, 20 (0.5%). Yog li ntawd, thaum qhia cov hlau rau cov neeg siv khoom, cov neeg yuav khoom yuav tsum nco ntsoov los yuav cov khoom sib txawv ntawm cov khoom lag luam uas xav tau, kom tsis txhob cuam tshuam cov khoom lag luam zoo.
Dab tsi yog qhov txawv ntawm Q235A thiab Q235B cov ntaub ntawv?
Q235A thiab Q235b yog ob qho tib si cov roj carbon. Nyob rau hauv lub teb chaws tus qauv GB700-88, Q235A thiab Q235b cov ntaub ntawv sib txawv yog tsuas yog nyob rau hauv Q235A Khoom siv cov ntsiab lus muaj roj carbon monayment hauv 0.14-0.22% ntawm; Q235B cov khoom tsis ua qhov kev cuam tshuam qhov kev kuaj kub, tab sis feem ntau ua qhov ntsuas kub cuam tshuam, v-notch. Kev sib piv, cov khoom siv mechanical ntawm cov khoom Q235b steel yog zoo dua li cov khoom Q235a hlau. Feem ntau, cov hlau zeb hauv cov tiav tiav profiles ua ntej tawm hauv lub Hoobkas tau cim rau ntawm daim phiaj qhia npe. Cov neeg siv tuaj yeem qhia seb cov ntaub ntawv yog Q235A, Q235B, lossis lwm cov ntaub ntawv ntawm lub phaj cim.
Japanese style steel yog SHC, SPHD, thiab lwm yam txhais tau li cas?
Japanese hlau (JIS series) cov txheej txheem zoo tib yam steel steel feem ntau yog peb ntu: s (steel) txhais tau tias hlau, f (ferum) txhais tau tias hlau. Qhov thib ob ntawm cov qauv sib txawv, hom sib txawv, siv, xws li p (Phaj) uas phaj, T (Tube), K (Kogu) tias cov cuab yeej ntawd. Qhov thib peb ntawm cov lus qhia ntawm tus lej, feem ntau qhov tsawg kawg nkaus lub zog. Xws li: SS400 - thawj tus hais tias cov hlau (Ssteel), thib ob yog tus qauv "(qauv" (qauv " Ntawm lawv :-- thawj ssteel hlau luv, p rau cov cua sov cov tsiaj ntawv luv, cov khoom lag luam luv, tag nrho cov khoom siv kub thiab hlau txaij.
SPHD ----- txhais tau kub dov steel ntawv thiab sawb rau stamping.
SPHE ------ txhais tau tias kub dov steel ntawv thiab strips rau kev sib sib zog nqus teeb duab.
Spcc ------ Txhais cov ntawv txias Rolled carbon steel thiab sawb rau kev siv dav dav, sib npaug rau Suav Q195-2155 qib. Tus thib peb tsab ntawv C yog cov lus luv rau mob khaub thuas, uas yuav tsum ua kom ntseeg tau qhov ntsuas tensile thaum kawg ntawm qib ntxiv t rau SPCCT.
SPCD ------ Qhia txog cov khaub thuas rolled carbon hlau thiab steel sawb rau punching, sib npaug rau Tuam Tshoj 08Ar (13237) cov hlau zoo cov hlau.
SPIE ------ Txhais cov ntawv txias rau cov ntawv txias Txhawm rau kom tsis ua haujlwm tsis ua haujlwm, ntxiv n rau spcen thaum kawg ntawm qib.
Txias rolled carbon hlau ntawv thiab sawb tsim, annealed conditioned, txheej txheem tempered rau s, 1, 1/4 nyuaj rau 4, 1/2 nyuaj rau 2.
Nto tas code: Tsis muaj FLLIZING TRE rau D, FLLIL TEAMING RAU B. Xws li cov Temct Templated, tsis muaj gliishing tiav colled carbon daim ntawv siv. Tom qab ntawd Spcct-SB qhia txog qhov tempered Tempered, ci ntsa iab tiav, muab cov ntaub pua plag txias rau cov khoom siv roj carbon monoxide.
Lub Sijhawm Post: Jun-24-2024
