1. Cov teeb meem ntawm kev xaiv cov khoom siv raw:
(1) Cov ntsiab lus siab impurity ntawm raw khoom. Kev ua haujlwm ntawm ferromanganese alloy yog cuam tshuam los ntawm impurities, thiab cov ntsiab lus siab ntawm impurities yuav txo qhov zoo ntawm cov hlau. Txoj kev daws teeb meem yog txhawm rau ntxiv dag zog rau kev tshuaj ntsuam thiab kuaj cov khoom siv raw, thiab xaiv cov khoom siv raw nrog cov purity siab dua.
(2) Uneven granularity ntawm raw khoom. Uneven granularity yuav ua rau inconsistent dissolution ceev ntawm lub alloy, cuam tshuam cov alloy muaj pes tsawg leeg thiab zoo ntawm cov alloy. Qhov kev daws teeb meem yog ua kom muaj kev sib tw tsim nyog thiab sib xyaw ntawm cov khoom siv raw khoom kom ntseeg tau tias homogeneity ntawm cov khoom siv raw.
2. Cov teeb meem hauv kev ua haujlwm smelting:
(1) Kev tswj tsis raug ntawm qhov cub kub. Nyob rau hauv cov txheej txheem smelting, kev tswj ntawm lub cub tawg kub ncaj qha cuam tshuam qhov muaj pes tsawg leeg thiab zoo ntawm cov hlau. Kub kub kub heev yuav ua rau kom nce evaporation poob ntawm cov hlau, thaum lub qhov cub kub qis heev yuav cuam tshuam qhov melting degree ntawm cov hlau. Txoj kev daws teeb meem yog txhawm rau ntxiv dag zog rau kev saib xyuas thiab tswj qhov kub ntawm qhov cub, thiab txais yuav qhov kev tswj tsis siv neeg kom paub qhov ruaj khov ntawm qhov cub kub.
(2) Lub sijhawm smelting ntau dhau. Lub sij hawm smelting ntev dhau lawm yuav ua rau kom poob ntawm manganese nyob rau hauv cov hlau los ntawm evaporation, txo cov manganese cov ntsiab lus ntawm cov hlau, thiab kuj nce lub zog ntawm smelting. Kev daws yog los tswj lub sij hawm smelting thiab tsim nyog npaj lub sij hawm smelting ntawm txhua tus txheej txheem los txhim kho cov smelting efficiency thiab alloy zoo.
(3) Cov nyhuv slaging tsis zoo. Cov slagging tsis zoo yuav ua rau cov oxides tsis txaus hauv cov txheej txheem smelting, cuam tshuam rau qhov zoo ntawm cov hlau. Manganese ferroalloy uas yog ib qho kev daws teeb meem zoo yog los txhim kho cov txheej txheem slagging, tuaj yeem ua rau kev siv cov slagging tus neeg sawv cev, hloov cov mis ntawm slagging tus neeg sawv cev thiab ntxiv cov hlau-carbon alloy thiab lwm yam kev ntsuas los txhim kho cov nyhuv ntawm slagging.
(4) Slagging tsis tiav. Kev ua tsis tiav slagging yuav ua rau cov seem slag sib xyaw hauv cov hlau, cuam tshuam rau cov khoom sib xws thiab kev ruaj ntseg zoo ntawm cov hlau. Txoj kev daws teeb meem yog siv cov txheej txheem slagging tsim nyog, ntxiv dag zog rau kev ua haujlwm thev naus laus zis thaum slagging, kom ntseeg tau tias cov slag raug tshem tawm kom huv.
3. Cov teeb meem nyob rau hauv alloy zoo:
(1) Alloy muaj pes tsawg leeg sib txawv ntawm qhov yuav tsum tau ua. Alloy muaj pes tsawg leeg tsis ua raws li qhov yuav tsum tau ua, uas yuav cuam tshuam rau kev siv alloy thiab kev lag luam kev sib tw. Txoj kev daws teeb meem yog tsim kom muaj qhov sib piv ntawm cov khoom siv raw, txhim kho cov txheej txheem smelting, ntxiv dag zog rau kev tswj xyuas zoo thiab kev saib xyuas hauv cov txheej txheem tsim khoom kom ntseeg tau tias cov khoom sib xyaw alloy ua tau raws li qhov xav tau.
(2) Ntau qhov kev suav nrog hauv cov hlau. Ntau cov kev suav nrog hauv cov hlau yuav txo tau lub zog, toughness thiab corrosion kuj ntawm cov hlau, thiab txawm ua rau tawg thiab tawg. Txoj kev daws teeb meem yog txhawm rau ntxiv dag zog rau kev tswj cov txheej txheem smelting kom txo cov tiam thiab cov seem ntawm kev suav nrog. Nyob rau tib lub sij hawm, nyob rau hauv cov txheej txheem ntau lawm, ntxiv dag zog rau kev tswj thiab kev soj ntsuam zoo, thiab tsis tu ncua nqa tawm kev tshawb nrhiav thiab tshem tawm cov inclusions nyob rau hauv lub alloy.
(3) Cov silicon hauv cov hlau tsis tshua muaj. Silicon yog ib qho ntawm cov khoom tseem ceeb hauv ferromanganese alloy, thiab nws cov ntsiab lus qis yuav cuam tshuam rau kev hnav tsis kam thiab kub tsis kam ntawm cov hlau. Txoj kev daws teeb meem yog xaiv cov khoom siv raw nrog cov ntsiab lus siab silicon, ntxiv dag zog rau kev tswj thiab kev hloov ntawm cov txheej txheem smelting kom ntseeg tau tias cov ntsiab lus silicon hauv cov hlau ua tau raws li qhov yuav tsum tau ua.
(4) Cov ntsiab lus carbon thiab sulfur hauv cov hlau yog nyob rau sab siab. Cov pa roj carbon thiab sulfur yog cov ntsiab lus tsis huv uas tsis tuaj yeem zam hauv ferromanganese alloy, thiab lawv cov ntsiab lus siab yuav txo qhov toughness thiab txias ua haujlwm ntawm cov hlau. Txoj kev daws teeb meem yog xaiv cov khoom siv raw nrog qis carbon thiab sulfur cov ntsiab lus thiab ntxiv dag zog rau cov pa roj carbon thiab sulfur tswj hauv cov txheej txheem smelting kom ntseeg tau tias cov pa roj carbon thiab sulfur cov ntsiab lus hauv cov hlau yog nyob rau hauv qhov tsim nyog.
