51CrV4 steel phaj

Cov Khoom Piav Qhia Lub weldability ntawm 51CrV4 steel phaj tsis zoo thiab qhov txias deformation plasticity tsawg. Cov hauv qab no yog cov txheej txheem vuam thiab ceev faj rau nws: Vuam txheej txheem: Vuam txoj kev: Feem ntau, vuam txoj kev xws li argon arc vuam yog saws. Piv txwv li, nyob rau hauv kev txiav txim ...

Xa kev nug

Hauj lwm lawm

Khoom Description

Tshuaj muaj pes tsawg leeg

Lub npe	Tus lej	C	Si	Mn	P	S	Cr	V
					max.	max.
51cwv 4	1.8159	0,47-0,55	max.0,40	0,70-1,10	0,025	0,025	0,90-1,20	0,10-0,25

Mechanical zog nyob rau hauv ntau yam kev kho mob

Quenched thiab tempered Q + T
Kev kho cua sov txoj kab uas hla hauv mm	0.2% pov thawj stress(Rp 0.2) min. N / mm²	Tensile zog hauv N / mm² Rm min.	Elongation ntawm tawg hauv% A min.	Txo ntawm thaj chaw ntawm pob txha hauv % Z min.	Qhov cuam tshuam Lub zog (ISO-V) hauv J KV min.
Tsawg dua los yog sib npaug li 16 >16 Tsawg dua lossis sib npaug li 40 >40 Tsawg dua los yog sib npaug rau 100 >100 Tsawg dua los yog sib npaug rau 160 >160 Tsawg dua los yog sib npaug rau 250	900 800 700 650 600	1100-1300 1000-1200 900-1100 850-1000 800-950	9 10 12 13 13	40 45 50 50 50	30 30 30 30 30

Vuam txheej txheem:

Vuam txoj kev: Feem ntau, vuam txoj kev xws li argon arc vuam yog saws. Piv txwv li, txhawm rau txo cov khoom siv hluav taws xob, kev sib txuas ncaj qha tam sim no electrode zoo tuaj yeem raug xaiv rau lub pob tw vuam ntawm cov khoom siv hlau, uas yog, cov khoom siv hlau txuas nrog rau tus ncej zoo ntawm lub zog thiab cov tungsten electrode txuas nrog. tus ncej tsis zoo.

Cov khoom siv vuam: Xaiv cov khoom siv vuam tsim nyog. Piv txwv li, tungsten electrodes uas muaj 1% lossis 2% thorium oxide muaj cov khoom siv hluav taws xob siab, muaj peev xwm nqa tam sim no, zoo tiv thaiv kev ua qias tuaj, yooj yim arc ignition thiab ruaj khov arc. Argon tuaj yeem raug xaiv los ua cov roj thaiv kev tiv thaiv, vim nws qhov tsis tshua muaj hluav taws xob arc voltage tshwj xeeb yog qhov zoo rau phau ntawv arc vuam ntawm nyias daim hlau thiab cov khoom siv hlau.

Vuam tsis: Ua ntej vuam, ua tib zoo zom ob kawg ntawm cov hlau hlau tiaj tus thiab ntxuav cov roj stains ntawm qhov kawg nrog acetone. Muab cov ntaub ntawv xaim nrog rau hauv av xaus rau ntawm lub tiaj tiaj tiaj thiab huv si, ua kom ob qhov kawg, tsis txhob muaj qhov sib txawv ntawm qhov sib koom ua ke, thiab nias ob sab ntawm qhov sib koom ua ke nrog ib qho hnyav hlau. Txuas cov khoom siv hlau mus rau tus ncej zoo ntawm lub tshuab vuam thiab cov tungsten electrode rau cov ncej tsis zoo. Kho qhov tam sim no mus rau 20A, 15A, 10A, thiab 8A rau vuam feem. Qhov kev ntsuam xyuas pom tias thaum tam sim no yog 20A, lub arc kub hnyiab, muaj cov hlau tawg loj heev ntawm qhov sib koom ua ke thiab qhov vuam taw tes sib tsoo hnyav; Thaum cov tam sim no raug kho rau 15A, lub arc hlawv kuj ruaj khov, muaj tsawg spatter nyob rau hauv lub pas dej ua ke molten, tab sis cov weld tseem vau; Thaum qhov tam sim no raug txo mus rau 10A, lub arc yog yooj yim rau ignite thiab lub arc yog ruaj khov.

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