Cov khoom siv rau cov cuab yeej kho vajtse

Cov cuab yeej kho vajtse feem ntau yog ua los ntawm cov hlau, tooj liab, thiab roj hmab

Hlau: feem ntau ntawm cov cuab yeej kho vajtse yog ua los ntawm steel

Copper: Qee cov cuab yeej siv hluav taws xob siv tooj liab ua cov khoom siv

Roj Hmab: Qee cov cuab yeej siv hluav taws xob siv roj hmab ua khoom siv

Yog hais tias cov tshuaj muaj pes tsawg leeg tau muab faib, nws tuaj yeem suav tau ua ob pawg loj ntawm carbon steel thiab alloy steel.

Nws tau muab faib ua peb pawg: cov qauv hlau, cov cuab yeej hlau thiab cov hlau tshwj xeeb.

Raws li qhov zoo, peb hom hlau zoo tib yam, cov hlau zoo yog cais.

carbon hlau

Cov ntsiab lus ntawm cov pa roj carbon steel qis dua 1.5%, cov ntsiab lus carbon ntawm cov hlau hu ua "0.25% cov pa roj carbon tsawg, 0.25% carbon steel tsawg dua lossis sib npaug li 0.6% ntawm carbon steel, carbon steel thiab siab carbon steel ntau dua. 0.6%.

Vim tias phosphorus thiab sulfur tuaj yeem ua rau cov hlau tsis muaj zog ntawm qhov kub thiab txias, cov ntsiab lus ntawm phosphorus thiab sulfur hauv cov hlau yuav tsum raug txhais thaum qhov zoo.Ordinary steel, muaj tsawg dua 0.045% sulfur cov ntsiab lus tsawg dua 0.055%.Cov hlau zoo, cov ntsiab lus phosphorus tsawg dua 0.04%, cov ntsiab lus sulfur tsawg dua 0.045%.Cov ntsiab lus sulfur ntawm cov cuab yeej steel, P = 0.04% feem.Hauv cov qib siab hlau, phosphorus thiab sulfur cov ntsiab lus yuav tsum tsawg dua 0.03%.

Carbon structural steel yog tsuas yog siv rau kev tsim ntau yam engineering Cheebtsam (xws li choj, nkoj thiab lub tsev Cheebtsam) thiab tshuab qhov chaw, xws li gears, shafts thiab txuas rods, thiab lwm yam., feem ntau belongs rau cov pa roj carbon tsawg thiab nruab nrab carbon steel.

Cov cuab yeej carbon steel yog cov lus tseem ceeb rau kev ua ntau yam cuab yeej, ntsuas cov cuab yeej, kov cov cuab yeej thiab cov cuab yeej kho vajtse, feem ntau yog cov pa roj carbon siab.Carbon cuab yeej steel hlau nrog "T", raws li T7 hais tias carbon carbon alloy cuab yeej steel 0.7%.Cov cuab yeej zoo carbon steel yog sawv cev los ntawm "A" tom qab tus lej, xws li "T7 A".

Class ib steel.Cov hlau no yog muab los ua kev lees paub ntawm cov khoom siv kho tshuab.Nrog rau tag nrho ntawm 1-7 qib, qhov ntau dua cov hlau, qhov ntau dua qhov tawm los thiab lub zog tensile, tab sis qhov me dua qhov elongation.

Class B steel, hom hlau no yog muab los ntawm cov tshuaj muaj pes tsawg leeg.Nrog rau tag nrho qib 1-7, qhov ntau dua ntawm cov hlau B, cov ntsiab lus carbon ntau dua.

Hlau alloy

Txhawm rau txhim kho cov khoom siv dag zog, cov txheej txheem cov khoom, lub cev thiab tshuaj lom neeg cov khoom ntawm cov hlau, qee cov ntsiab lus alloying tau ntxiv rau cov hlau thaum smelting, uas yog hu ua alloy hlau.Qhov nruab nrab carbon cov ntsiab lus ntawm ntau tshaj 1% alloy cuab yeej hlau thaum cov ntsiab lus carbon tsis cim, qhov nruab nrab carbon ntsiab lus yog tsawg tshaj li 1%, nrog tsawg heev hais.

Tag nrho cov ntsiab lus ntawm cov hlau alloying nyob rau hauv cov hlau hu ua <5% low-alloy steel, 5% tsawg tshaj li qhov tsawg tshaj li 10% alloy ntsiab hu ua alloy hlau, alloy ntsiab hu ua 10%, tag nrho cov nyiaj siab alloy hlau.

Alloy steel tuaj yeem tau txais cov khoom siv kho tshuab uas nyuaj rau kev ua tiav hauv carbon steel.

Chromium: nce hardenability ntawm hlau thiab txhim kho cov hnav tsis kam thiab ua kom cov tawv tawv.

Vanadium: nws muaj txiaj ntsig zoo rau kev txhim kho hardness, hnav tsis kam thiab toughness ntawm hlau, tshwj xeeb tshaj yog rau kev txhim kho cov hnav tsis kam ntawm cov hlau.

Mo: nws tuaj yeem txhim kho lub hardenability thiab tempering stability ntawm cov hlau, refine cov nplej thiab txhim kho cov nonuniformity ntawm carbides, yog li txhim kho lub zog thiab toughness ntawm cov hlau.

Cov hlau siv hauv cov cuab yeej kho vajtse

Vim tias cov khoom tshwj xeeb ntawm cov cuab yeej alloy steel, cov cuab yeej alloy steel feem ntau yog siv rau hauv nruab nrab thiab qib siab cov cuab yeej kho vajtse.Nws yog tsuas yog muaj feem xyuam rau cov chav kho chav tsev, lub Hoobkas tsheb, fais fab nroj tsuag thiab industrial thiab mining tuam txhab uas muag uas muaj cov cuab yeej siv siab thiab siab dua cov cuab yeej.

Cov cuab yeej carbon steel feem ntau yog siv hauv cov cuab yeej kho vajtse qis, uas muaj qhov zoo ntawm tus nqi qis.Nws yog qhov tsim nyog rau cov neeg siv hauv tsev uas siv tus nqi qis thiab tsis xav tau cov cuab yeej siab.

S2 alloy steel (feem ntau yog siv los ua cov ntsia hlau, ntsia hlau ntsia hlau)

Cr Mo steel (feem ntau siv los ua cov ntsia hlau)

(feem ntau yog siv nyob rau hauv zus tau tej cov chrome vanadium steel tes tsho, wrenches, pliers)

Carbon steel (feem ntau yog siv los ua cov cuab yeej qib qis)