Txhua yam txog C345 steel

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Raws li nws tau muab tawm, yog tias koj tab tom ntsib qhov xav tau kom paub sai sai rau koj tus kheej nrog cov yam ntxwv tseem ceeb ntawm cov hlau tshwj xeeb, hauv peb qhov Internet loj thiab omniscient muaj tsuas yog ob peb nqe lus uas koj xav tau. tau piav qhia hauv cov lus yooj yim to taub, thiab tsis cuam tshuam los ntawm GOSTs thiab lwm yam ntaub ntawv, cov lus uas yuav nkag siab tsuas yog los ntawm cov neeg kawm tiav qib siab. Nrog rau tsab xov xwm no, peb yuav sim qhia cov nplai ntawm kev yooj yim thiab kev nkag tau yooj yim. Nws yuav tsom rau steel C345. Peb thov kom koj ceev faj. Peb tab tom pib.

Destination

Rau qhov kev nkag siab zoo dua, nws yog thawj qhov tsim nyog piav qhia tias qib steel no siv tau li cas. Qhov tseeb, txhua yam yog outrageously yooj yim thiab meej. Steel C345 yog kev tsim kho steel, uas tsab ntawv "C" pab ua kom peb nco txog, cov qauv. Tsis tas li ntawd, koj tuaj yeem hu rau cov pa roj carbon steel, uas yog ib feem muaj tseeb, thiab cov hlau tsis tshua muaj, uas twb muaj teeb meem me ntsis. Txawm li cas los xij, qhov no yuav tsum tau tham tom qab.

Qhov twg thiab vim li cas C345 steel siv? Raws li lub npe, koj tuaj yeem nkag siab tam sim ntawd nws feem ntau pom ntawm cov chaw tsim kho, thiab ntau qhov ntau. Nws ua raws li cov khoom tseem ceeb rau kev tsim cov qauv hlau, ob qho tib si welded thiab prefabricated.

Los ntawm cov lus hais dhau los, nws paub meej tias cov hlau nkag mus rau qhov chaw tsim kho li cas. Raws li GOST 27772-88, steel yog tsim nyob rau hauv daim ntawv:

• kaum sib npaug thiab tsis sib npaug;
• I-beams;
• daim hlau.

Composition

Ua tsaug rau tib GOST, peb tuaj yeem tshawb pom cov tshuaj muaj pes tsawg leeg ntawm cov hlau. Cov ntsiab lus nruab nrab ntawm cov ntsiab lus alloying hauv cov hlau yog:

• carbon - 0.15%;
• silicon - 0.8%;
• manganese - 1.5%;
• nickel - 0.3%;
• chrome – 0.3%;
• copper - 0.3%;
• sulfur - 0.04%;
• phosphorus - 0.035%;
• nitrogen - 0.012%.

Raws li koj tuaj yeem pom, cov tshuaj muaj pes tsawg leeg ntawm C345 steel yog ntau haiv neeg thiab suav nrog 9 lub ntsiab lus. Raws li qhov no, nws tuaj yeem xav tias cov hlau no tsis tuaj yeem hu ua low-alloyed. Txawm li cas los xij, nws tsim nyog sau cia tias feem pua ntawm cov ntsiab lus, nrog rau kev zam ntawm manganese thiab silicon, tsis tshaj ib nrab ntawm ib feem pua. Tias yog vim li cas koj thiaj li hais tau yog tias koj hu rau qib qis-alloy steel.

C345 steel: yam ntxwv

Lub cev lub cev ntawm cov hlau ncaj qha nyob ntawm nws cov tshuaj muaj pes tsawg leeg. Thiab nyob rau hauv rooj plaub ntawm C345, lub cawvimpurities ntawm cov qauv hlau yog me me uas tsis tas yuav tham txog cov khoom zoo. Ib qho me me ntawm cov pa roj carbon monoxide ua rau cov hlau kuj yog mos thiab ductile, thiab yog li tsis muaj zog. Qhov teeb meem no tau kho me ntsis los ntawm manganese thiab silicon, uas muaj cov txiaj ntsig zoo ntawm lub zog thiab tag nrho hardness ntawm cov hlau, tsis muaj kev txo qis kev cuam tshuam lub zog thiab ductility. Cov impurities ntawm npib tsib xee, chromium thiab tooj liab ua ib qho me ntsis txhim kho cov hlau tsis kam mus rau sab nraud ib puag ncig, uas, txawm li cas los xij, tsis tiv thaiv nws los ntawm oxidizing hauv huab cua nrog kev tsim ntawm xeb.

Yog tias peb tham txog C345 steel feem ntau, ces nws yog mos (qhov nruab nrab tsuas yog 22 units ntawm Rockwell nplai), ductile, ua tau yooj yim thiab yooj yim weldable steel nrog cov qauv zoo. Nws tsis yooj yim rau kev tsim cov teeb meem sab hauv thiab ntau lub sijhawm tsis xav tau.

Analogues

Nws tsis muaj qhov zais cia tias cov hlau xav tau txhua qhov chaw. Thiab rau ntau lub teb chaws, nws yog pheej yig dua rau smelt steel nyob rau hauv tsev dua li ntshuam los ntawm txawv teb chaws. Tias yog vim li cas niaj hnub no muaj ntau ntau qib sib txawv ntawm cov hlau. Txawm li cas los xij, kuj muaj cov uas nws muaj pes tsawg leeg tsis txawv ntau los ntawm ib leeg los yog zoo ib yam nkaus. Steel qib C345 kuj muaj analogues. Nov yog ib daim ntawv me me ntawm lawv:

• United States - GR.50Type1-4.
• Europe - 1.0570.
• Japan - SM490.
• Tuam Tshoj - 16Mn.

Nov yog lub npe muab rau cov hlau zoo ib yam li C345. Paub txog lawv, koj tuaj yeem yooj yim nrhiav cov khoom lag luam los ntawm cov hlau koj xav tau nyob txhua qhov chaw hauv ntiaj teb, txij li cov npe saum toj nopop tuaj ntau zaus thoob ntiaj teb.