Multi-purpose furnace radiation tube rau kev kho nitriding

Multi-purpose furnace radiation tube rau kev kho nitriding
Cov txheej txheem kev kho cua sov tshuaj ntawm infiltrating nitrogen rau saum npoo ntawm lub workpiece nyob rau hauv nruab nrab uas muaj reactive nitrogen hom los txhim kho hardness, hnav tsis kam, qaug zog zog thiab liab hardness ntawm lub workpiece yog hu ua anti-hnav nitriding, los yog nitriding rau luv luv (yav tas los. hu ua nitriding). Cov txheej txheem nitriding yog nqa tawm hauv qab theem ntawm kev hloov pauv kub ntawm cov hlau (450-600 degree), ua rau me me deformation ntawm lub workpiece. Tsis tas li ntawd, lub hardness ntawm nitriding txheej yog siab, thiab hnav tsis kam thiab qaug zog ua hauj lwm ntawm workpiece yog zoo. Yog li ntawd, cov txheej txheem no tau siv dav. Feem ntau siv nitriding steels yog 38 CrMoAl, 38 CrAl, thiab lwm yam. Vim yog kev txhim kho ntawm nitriding tshuab, qis thiab nruab nrab carbon alloy structural steels uas muaj cov ntsiab lus xws li Cr, M, V, Ti, Al, thiab lwm yam yuav tau nitrided.
Qhov tob ntawm txheej nitriding yog nyias nyias ({{0}}}2-0.7mm), uas feem ntau tuaj yeem suav tias yog ob txheej: txheej txheej txheej yog tsim los ntawm e theem thiab (e ntxiv rau Y) theem, uas tsis yooj yim rau corrode thiab hu ua dawb ci txheej; Cov txheej sab hauv yog ib qho ntxiv Y theem nrog cov xim xim tsaus nti (E-Fe2N thiab cov khoom siv ntawm cov hlau lossis nitrogen Y-Fe4N, a-nenenebb cov kua nitrogen hauv cov hlau) thiab cov tshuaj nitride dispersed heev (AN, VN, MO2N, CrN. ). Cov txheej txheem nitriding yuav siv sij hawm 20-8 teev kom tau ib txheej ntawm 0.3-0.5mm.
Vim lub fact tias siab hardness yuav tau nyob rau saum npoo ntawm lub workpiece tom qab nitriding, tsis tas yuav muaj kev kho mob. Txawm li cas los xij, ua ntej nitriding, tempering lossis normalizing yuav tsum tau ua kom ntseeg tau tias qhov kev ua tau zoo ntawm cov tub ntxhais, thiab yog tias tsim nyog, kev ntxhov siab yuav tsum tau ua. Cov cua txias tom qab nitriding yuav tsum tau nqa tawm raws li qhov me me ntawm NH3 tiv thaiv kom tsis txhob oxidation ntawm lub workpiece. Tom qab nitriding, qhov tawv tawv ntawm HV600 ~ 1200 tuaj yeem tau txais, nrog kev hnav tsis kam. Qhov siab tawv no tuaj yeem khaws cia txog li 500 degree (ntev ntev), thiab txawm tias qhov kev qaug zog ntawm 600 degree (lub sijhawm luv luv) tuaj yeem nce ntxiv los ntawm 30 ~ 300 feem pua, thiab kev tiv thaiv corrosion kuj tuaj yeem txhim kho.
Peb lub tuam txhab tau txais cov txheej txheem no los kho cov kab hluav taws xob hluav taws xob uas tau nruab nrog ntau lub hom phiaj rau kev ua kom lub neej ntev ntawm cov raj hluav taws xob.