Graphite Degassing Rotor yog dab tsi?

Graphite degassing rotorfeem ntau siv rau hauv kev lag luam hlau casting, tshwj xeeb tshaj yog nyob rau hauv kev yaj thiab kev ua kom zoo ntawm txhuas thiab nws cov alloys, thiab qee zaum rau kev kho cov zinc molten, tooj liab alloys thiab lwm yam hlau uas tsis yog ferrous.
Lawv yog ib qho tseem ceeb hauv cov txheej txheem degassing. Los ntawm kev tig thiab txhaj cov roj inert, lub rotor tshem tawm cov roj yaj thiab ib feem ntawm cov khoom suav nrog los ntawm cov hlau molten, tiv thaiv porosity, shrinkage cavities thiab lwm yam tsis zoo hauv castings, thiab yog li ua kom ntseeg tau tias ob qho tib si sab hauv thiab qhov zoo ntawm cov khoom kawg.

1. Khoom siv

Cov graphite degassing rotors feem ntau yog machined los ntawm high-purity graphite lossis isostatic graphite rau cov laj thawj hauv qab no:

• Kev ua tau zoo heev thaum kub heev:
  Lawv tuaj yeem tswj tau qhov ruaj khov ntawm cov hlau uas kub (piv txwv li, nyob ib ncig ntawm 700 ° C rau cov txhuas uas kub).

• Kev ruaj khov tshuaj lom neeg:
  Lawv qhia tau tias nws tsis ntub dej rau cov txhuas uas yaj thiab lwm yam hlau, uas pab txo qhov kev yaig thiab kev lo rau hlau.

• Muaj zog tiv taus corrosion:
  Lawv tuaj yeem tiv taus kev tawm tsam los ntawm cov hlau molten thiab qee cov fluxes.

• Kev ua tau zoo:
  Graphite tuaj yeem tig, milled thiab drilled, ua rau nws yooj yim los tsim cov rotors hauv ntau cov qauv thiab qhov ntau thiab tsawg kom haum rau ntau yam qauv tsim cub tawg thiab cov txheej txheem xav tau.

2. Txoj Cai Ua Haujlwm thiab Cov Haujlwm Tseem Ceeb

Do cov yaj kom txhawb kev tso pa tawm

Thaum lub sijhawm ua haujlwm, lub graphite rotor raug muab tso rau hauv cov hlau molten thiab tsav los ntawm lub cev muaj zog ntawm kev kub ceev.

• Qhov kev tig ua rau muaj kev sib xyaw, uas ua rau cov hlau uas yaj ntws zoo dua;

• Qhov no pab coj cov pa roj uas yaj thiab cov khoom uas tau raug kaw lossis faib tsis sib npaug hauv cov yaj mus rau saum npoo, ua kom cov pa roj tawm thiab cov slag flotation sai dua.

Txhaj tshuaj inert roj rau kev degassing zoo

Cov pa roj sab hauv feem ntau yog tsim los sab hauv lub rotor kom cov pa roj inert (feem ntau yog argon lossis nitrogen) tuaj yeem nkag mus rau hauv cov hlau molten.

• Nyob rau hauv qhov kev ua ntawm lub rotor tig, cov roj inert raug tawg ua ntau lub npuas zoo;

• Thaum cov npuas no nce mus txog qhov yaj, lawv pauv nrog cov hydrogen uas yaj thiab lwm cov pa roj hauv cov hlau thiab nqa lawv tawm ntawm qhov yaj;

• Qee cov oxides zoo thiab cov khoom tsis yog hlau kuj lo rau ntawm cov nplaim npuas thiab raug coj mus rau saum npoo ua ke, qhov chaw uas lawv tuaj yeem tshem tawm los ntawm skimming.

3. Cov Xwm Txheej Thov Ib Txwm Muaj

• Degassing ua ntej casting:
  Ua ntej ua cov hlau txhuas casting, cov yaj raug kho rau degassing thiab deslagging kom txo cov porosity thiab txhim kho qhov ceev ntawm cov castings.

• Cov txheej txheem yaj thiab ua kom zoo:
  Hauv cov cub tawg melting lossis refining furnaces, degassing rotors yog siv los tshem tawm hydrogen thiab qee cov oxides ntawm cov yaj, yog li txhim kho kev huv ntawm cov yaj.

4. Hom thiab Cov Qauv Qauv ntawm Graphite Degassing Rotors

Nyob ntawm seb hom hlau twg raug ua tiav, kev tsim lub cub tawg thiab qhov xav tau ntawm cov khoom siv, graphite degassing rotors muaj ntau yam qauv tsim, xws li:

• Cov chav ua haujlwm degassing rotary:
  Cov kev daws teeb meem feem ntau rau kev kho cov txhuas yaj. Lub rotor tau teeb tsa rau ntawm lub cev muaj zog thiab tig hauv lub qhov hlau yaj lossis lub cub tawg.

• Cov qauv tsim ntawm lub taub hau rotor sib txawv:
  Piv txwv li, cov taub hau ntau lub hniav lossis cov qauv tsim uas ua kom cov npuas zoo dua thiab sib xws dua los txhim kho kev ua haujlwm ntawm degassing.

• Cov qauv sib xyaw ua ke lossis sib cais:
  Qee cov rotors raug tshuab ua ib daim (ncej thiab lub taub hau), thaum lwm tus siv cov xov sib txuas kom tsuas yog lub taub hau rotor uas hnav lawm yuav tsum tau hloov, txo cov nqi kho.

5. Cov txiaj ntsig thiab tus nqi

• Kev ruaj khov zoo:
  Graphite muaj kev tiv thaiv corrosion thiab thermal shock, uas ua rau lub rotor muaj lub neej ua haujlwm tsim nyog hauv cov hlau molten.

• Kev ua haujlwm siab ntawm degassing:
  Kev sib xyaw ua ke ntawm kev nplawm thiab kev txhaj tshuaj roj inert txo qis cov roj uas yaj hauv cov hlau.

• Kev txhim kho zoo ntawm cov hlau:
  Tom qab cov pa roj thiab cov khoom tsis zoo raug tshem tawm, qhov porosity ntawm casting txo qis thiab cov qauv sab hauv ua kom ntom dua, txhim kho ob qho tib si cov khoom siv kho tshuab thiab qhov zoo ntawm qhov chaw.

Kev Ceeb Toom:Raws li lub sijhawm dhau mus, lub graphite rotor yuav hnav vim qhov kub thiab txias siab, kev ntxhov siab ntawm lub tshuab thiab kev ua kom sov, yog li yuav tsum tau saib xyuas thiab hloov pauv tas li.