Mos nitriding cua sov kho ntawm nitriding rauv

Mos nitriding cua sov kho ntawm nitriding rauv

Txhawm rau kom luv luv lub voj voog nitriding thiab xyuas kom meej tias cov txheej txheem nitriding tsis txwv los ntawm qib steel, ob txoj kev tshiab nitriding, mos nitriding thiab ion nitriding, tau tsim los ntawm cov txheej txheem nitriding qub hauv xyoo tas los no.

Mos nitriding yog qhov tseem ceeb ntawm cov txheej txheem qis nitrogen carbon co nitriding uas feem ntau cuam tshuam nrog nitriding. Thaum nitrogen atoms nyob rau hauv steel infiltrate, ib tug me me ntawm carbon atoms kuj infiltrate. Piv nrog cov roj nitriding dav dav, cov txheej nitriding muaj qis dua hardness thiab brittleness, yog li nws yog hu ua mos nitriding.

1. Cov txheej txheem ntawm cov mos nitriding tuaj yeem muab faib ua peb pawg: roj soft nitriding, kua muag muag nitriding, thiab khoom muag muag nitriding. Tam sim no, txoj kev siv dav tshaj plaws hauv kev tsim khoom hauv tsev yog cov pa roj nitriding. Gas nitriding yog cov txheej txheem qis nitrogen thiab carbon co infiltration ua nyob rau hauv ib qho chaw uas muaj nitrogen thiab carbon atoms. Feem ntau siv co infiltration media suav nrog urea, formamide, ammonia, thiab triethanolamine, uas dhau los ua cov tshuaj tiv thaiv thermal decomposition ntawm nitriding kub los tsim cov nitrogen thiab carbon atoms. Activated nitrogen thiab carbon atoms yog absorbed los ntawm qhov chaw ntawm lub workpiece thiab diffuse rau saum npoo ntawm lub workpiece, yog li tau txais ib tug nitrogen carbon co infiltration txheej tsuas yog tsim ntawm nitrogen.

Qhov feem ntau siv qhov kub thiab txias rau cov pa roj nitriding yog 560-570 degree, vim qhov hardness tus nqi ntawm cov nitrided txheej yog siab tshaj ntawm qhov kub no. Lub sijhawm nitriding feem ntau yog 2-3 teev, vim tias dhau 2.5 teev, qhov tob ntawm txheej nitriding nce qeeb nrog lub sijhawm.

2. Cov qauv thiab cov yam ntxwv ntawm nitriding furnace soft nitriding txheej: Tom qab mos nitriding, txheej txheej ntawm steel nto yuav tau txais ib tug dawb ci txheej xws li los ntawm ob peb micrometers mus rau ob peb kaum micrometers, uas yog tsim los ntawm ε Xiang `Composed ntawm theem thiab Nitrogen-muaj cementite Fe3 (C, N), nrog ib txheej diffusion raws li txheej thib ob, nws yog tsim los ntawm ' Xianghe ε Phase muaj pes tsawg leeg

Cov kauj ruam los tsim lub zog ntawm lub tshuab cua sov:

Kos cov txheej txheem cua sov flowchart raws li cov txheej txheem tsim khoom (tsis suav nrog cov ntaub ntawv thiab cov lus qhia tshwj xeeb).

Xam cov cua sov uas yuav tsum tau ua rau cov txheej txheem.

Xam cov cua sov thiab lub sijhawm xav tau rau kev pib ua haujlwm.

Xav txog qhov tsim nyog kev nyab xeeb los txiav txim siab tag nrho lub zog ntawm lub rhaub.

Txiav txim siab cov ntaub ntawv sheath thiab lub zog ntom ntom ntawm cov khoom cua sov.

Txheeb xyuas daim ntawv, qhov loj me, thiab qhov ntau ntawm lub rhaub.

Txiav txim siab lub hwj chim mov thiab tswj qhov system ntawm lub rhaub.

4, Basic formula:

1. Lub zog yuav tsum tau ua kom sov pib: kw=(C1M1) Δ T + C2M2 Δ T) +864/p+p/2

Hauv cov qauv:

C1 thiab C2 feem sawv cev rau qhov tshwj xeeb kub ntawm lub thawv thiab nruab nrab (kcal degree)

M1 thiab M2 yog qhov loj ntawm lub thawv thiab nruab nrab, feem (kg)

Δ T yog qhov sib txawv ntawm qhov xav tau qhov kub thiab txias (degree)

H yog lub sijhawm uas yuav tsum tau ua kom sov qhov pib kub rau qhov kub (h)

P yog cov cua kub dissipation ntawm lub thawv ntawm qhov kawg kub (kw)

2. Lub zog xav tau los tswj qhov kub nruab nrab:

Kw=C2M3 Δ T/864+P

Hauv cov mis, qhov nruab nrab ntxiv ib teev rau M3 (kg / h)

Tag nrho lub zog: Siv tus nqi siab tshaj plaws ntawm ob hom fais fab saum toj no thiab xav txog cov coefficient ntawm 1.2.

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