Ua ntej, kev siv cov carburizing tus neeg sawv cev hauv qhov cub carburizing txoj kev

1. Cov pa roj carbon, yog ib qho tseem ceeb tshaj plaws hauv cov hlau cam khwb cia, yog qhov nyuaj rau kho dua li lwm cov khoom.Vim tias cov pa roj carbon ntau tsawg dua li cov kua hlau, kev nqus dej yuav tsawg heev yam tsis muaj kev ntxhov siab.Feem ntau nyob rau hauv lub batching, carbon raws li lub sab sauv txwv ntawm cov txheej txheem yuav tsum tau, thiab xav txog cov txheej txheem smelting ntawm carbon burning nyiaj them, yog li tos kom txog thaum lub hlau nqi ntshiab, tus nqi ntawm carbon yog yeej nyob rau hauv tus txheej txheem ntau yam, txawm me ntsis dhau lub sab sauv. txwv kuj tseem siv tau los ntxiv me me ntawm (huv, qhuav) seem yog ib qho yooj yim los nqa nws, nyob rau hauv lub cub hluav taws xob melting carbon tshaj carburizing lub lag luam yog ntau yooj yim.

2. Noj ib ntus

Kauj Ruam 1: Ua ntej nteg ib qho nyiaj rov qab los (lossis tshuav ib qho me me ntawm cov kua hlau) hauv qab ntawm lub cub tawg, kom cov khoom tshiab tuaj yeem tso rau hauv cov kua hlau, txo oxidation.

Kauj Ruam 2: Ntxiv cov khoom seem ua ntej, tom qab ntawd ntxiv tus neeg sawv cev carburizing.Nyob rau lub sijhawm no, lub melting point ntawm cov kua hlau yog tsawg, uas tuaj yeem yaj sai sai los txhim kho qhov siab ntawm cov kua theem, kom cov neeg sawv cev carburizing infiltrates hauv cov kua hlau.Lub synchronization ntawm carburizing thiab hlau melting tsis nce lub sij hawm melting thiab siv tsawg zog.Vim tias qhov txo qis ntawm FeO los ntawm C yog siab dua li Si thiab Mn, qhov kub ntawm Si thiab Mn tuaj yeem txo los ntawm kev ntxiv carburizer ntawm qhov kub thiab txias.Sim siv lub hnab ntim khoom ntim nrog tus neeg sawv cev carburizing rau hauv lub tshuab hluav taws xob, tsis txhob siv lub tshuab hluav taws xob rau hauv lub tshuab hluav taws xob, kom tsis txhob muaj cov khoom zoo raug nqus los ntawm cov plua plav collector.

Kauj Ruam 3: Cov seem yog melted ib nrab thiab tus nqi xa rov qab ntxiv.Txhawm rau kom ntseeg tau tias tus neeg sawv cev carburizing tau nqus tag nrho ua ntej slagging, lub sijhawm no, lub tshuab hluav taws xob muaj zog siab (> 600kW / t) yog qhov tseem ceeb tshwj xeeb vim tias lub sijhawm xav tau rau melting cov khoom yuav tsawg dua li lub sijhawm yuav tsum tau ua kom tiav kev nqus ntawm lub carburizer.Nyob rau tib lub sijhawm, kev ua haujlwm ntawm lub qhov cub hluav taws xob yuav tsum tau siv rau qhov siab tshaj plaws hauv cov txheej txheem ntawm carburizing tus neeg saib xyuas kev nqus.

Kauj Ruam 4: Yog tias tus nqi rov qab ntawm tus neeg sawv cev carburizing thiab kev tswj hwm cov ntsiab lus ntawm cov kua hlau yog qhov tseeb, tus neeg sawv cev carburizing tuaj yeem ntxiv nrog seem ib zaug.Yog tias tsis paub meej tuaj yeem tawm 5% ~ 10% ntawm tus neeg sawv cev carburizing tuaj koom ob zaug.Qhov thib ob ntxiv ntawm tus neeg saib xyuas carburizing yog cov pa roj carbon zoo (lossis ntxiv cov pa roj carbon monoxide), yuav tsum tau ntxiv tom qab cov hlau liquefier, ua ntej koom nrog cov kua hlau nto slag raking huv si, kom deb li deb tau kom tsis txhob carburizing tus neeg sawv cev koom nrog hauv slag, thiab tom qab ntawd high-power hluav taws xob siv hluav taws xob rauv stirring muaj nuj nqi los txhim kho tus nqi nqus.

Kauj Ruam 5: Ntxiv ferrosilicon thiab lwm yam alloys, piv txwv, kho qhov muaj pes tsawg leeg, tawm ntawm qhov cub.Tsis txhob khaws cov kua hlau ntawm qhov kub thiab txias rau lub sijhawm ntev.Lub sij hawm ntev cia ntawm cov kua hlau ntawm qhov kub thiab txias (tshwj xeeb tshaj yog cov rwb thaiv tsev ntev tshaj 1450 ℃) yog ib qho yooj yim ua rau oxidation ntawm cov pa roj carbon monoxide, nce cov ntsiab lus ntawm silicon (silicon dioxide yog txo) thiab poob ntawm crystal nuclei hauv kua hlau. .

Ob, kev siv cov carburizing tus neeg sawv cev hauv pob carburizing txoj kev

Yog tias tsim nyog rau carburize hauv pob, qhov loj me ntawm 100 ~ 300 lub hom phiaj carburizing tus neeg sawv cev tuaj yeem muab tso rau hauv qab ntawm pob, thiab cov kua hlau kub kub yog ncaj qha mus rau tus neeg sawv cev carburizing (los yog ntxiv nrog cov kua hlau. ntws), thiab cov hlau yog tag nrho stirred tom qab dissolution thiab nqus carbon.Cov nyhuv ntawm carburizing nyob rau hauv lub pob yog tsis zoo li hais tias nyob rau hauv lub cub tawg, thiab tus nqi nqus yog nyuaj rau tswj.Txawm hais tias siv cov carburizing tus neeg saib xyuas lossis cov txheej txheem carburizing yuav tsum tau txiav txim siab los ntawm cov txheej txheem kev kuaj carburizing thiab kev nqus tus nqi ib zaug tau txiav txim siab, tsis txhob hloov cov hom carburizing tus neeg saib xyuas thiab keeb kwm yooj yim, yog tias koj xav hloov nws yuav tsum dhau qhov kev kuaj xyuas ntau lawm. dua.