Qhov twg calcium silicon hmoov los yog calcium silicon cored hlau yog haum rau koj?

Calcium silicon hmoovthiabcalcium silicon cored hlaumuaj tib lub hauv paus ntsiab lus (feem ntau muaj 20% -35% Ca thiab 55% -75% Si), tab sis lawv cov qauv tsim thiab cov txheej txheem sib txawv, uas ua rau muaj qhov sib txawv tseem ceeb hauv cov khoom yooj yim:

Ob qho khoom ua tiav deoxidation, desulfurization, thiab inoculation zog, tab sis vim muaj ntau txoj kev sib ntxiv, lawv cov teebmeem txawv txawv:

(1) Deoxidation thiab Desulfurization teebmeem

 CaSi hmoov:Cov hmoov muaj qhov sib cuag loj nrog cov hlau molten, uas ua rau cov tshuaj tiv thaiv sai (deoxidation cov tshuaj tiv thaiv ua tiav lub sijhawm yog 3-5 feeb), tab sis nws yooj yim ntab rau saum npoo ntawm cov hlau molten thiab yog ib feem ntawm cov slag, ua rau cov khoom qis rov qab (Ca rov qab tus nqi 30% -40%, Si rov qab tus nqi 60% -70%). Nws yog qhov tsim nyog rau deoxidation thiab desulfurization ntawm cov hlau zoo tib yam thiab cam khwb cia hlau qhov twg cov kev xav tau rov qab tsis siab, txo cov pa oxygen ntawm molten steel los ntawm 80-100ppm mus rau 40-60ppm, nrog tus nqi desulfurization ntawm 40% -50%.

 CaSi cored hlau:Ntxig tob rau hauv cov hlau molten (1.5-2.0m) ntawm lub xaim feeder, nws zam lub caij hlawv-tawm, nce Ca rov qab mus rau 60%-70% thiab Si rov qab mus rau 80%-90%. Deoxidation thiab desulfurization cuam tshuam yog ruaj khov, txo cov pa oxygen cov ntsiab lus ntawm cov hlau molten mus rau 30-40ppm thiab ua tiav tus nqi desulfurization ntawm 60% -70%, haum rau cov khoom siv hlau zoo (xws li cov kabmob hlau thiab cov hlau ductile).

(2) Inoculation thiab Alloying teebmeem

 Silicon calcium hmoov:Thaum siv los ua ib qho inoculant hauv qhov chaw casting, qhov sib ntxiv yog 0.2% -0.5% ntawm cov hlau molten. Nws tuaj yeem txhawb nqa graphitization thiab kho cov nplej, tab sis nws yog qhov ua rau agglomeration, ua rau cov tshuaj tiv thaiv tsis sib xws thiab kev hloov pauv tseem ceeb hauv kev ua haujlwm casting (kev cuam tshuam toughness sib txawv ± 10%).

 Silicon calcium cored hlau:Thaum lub sij hawm pub mis, cov ntawv hlau melts, thiab cov hmoov yog tusyees dispersed, uas ua rau inoculation ruaj khov. Lub graphite spheroidization tus nqi ntawm cov casting nce los ntawm 80% mus rau ntau tshaj 95%, nrog rau txhua yam khoom hloov pauv tsawg dua los yog sib npaug li 5%, haum rau precision castings thiab siab -kawg alloy ntau lawm.

(3) Txheej txheem Adaptability thiab Environmental Friendliness

 SiCa hmoov:Plua plav tau yooj yim tsim thaum pub mis (plua plav concentration tuaj yeem ncav cuag 50-80mg/m³), yuav tsum tau siv cov khoom tshem tawm plua plav; Kev pub mis ntawm phau ntawv yog siv zog ua haujlwm thiab nyuaj rau kev tswj hwm tus nqi ntxiv (yuam ± 15%).

 SiCa cored hlau:Tsis muaj plua plav paug (plua plav concentration<10mg/m³), meeting environmental protection requirements; the wire feeder accurately controls the feeding speed (1-5m/s) and length, with an addition error ≤5%, suitable for automated production lines.

(1) Cov xwm txheej uas cov hmoov calciumsilicon nyiam dua

Cov khoom siv tej yam kev mob:

Me me hluav taws xob rauv, induction rauv rau casting (lub cub muaj peev xwm<50t), without a wire feeder;

Cov khoom xav tau:

Cov pa roj carbon zoo tib yam, aluminium alloy rau kev tsim kho, feem ntau cam khwb cia hlau qhov chaw, nrog rau cov kev xav tau me ntsis rau kev rov qab los thiab kev ua haujlwm ruaj khov;

Kev xav txog tus nqi:

Kev siv nyiaj tsawg, nrhiav tus nqi siab -kev ua tau zoo, thiab lees txais qee qhov kev hloov pauv ntawm kev ua haujlwm.

(2) Cov xwm txheej uas siliconcalcium cored hlau yog nyiam:

Cov khoom siv xav tau:

Converter, loj hluav taws xob rauv (lub cub tawg muaj peev xwm ntau tshaj los yog sib npaug zos rau 50t), nruam casting ntau lawm kab, nruab nrog ib tug tshwj xeeb hlau feeder;

Cov khoom xav tau:

High- steel zoo (xws li lub caij nplooj ntoos hlav hlau, cov hlau nplaum rau cov cua fais fab flanges), precision castings, nrog rau cov kev cai nruj rau deoxidation thiab desulfurization efficiency thiab kev ua tau zoo stability;

Cov txheej txheem xav tau:

Kev tsim khoom siv hluav taws xob, kev tiv thaiv ib puag ncig siab (xws li thaj chaw tswj hwm ib puag ncig xws li Beijing-Tianjin- cheeb tsam Hebei thiab Yangtze River Delta), yuav tsum tau txo cov plua plav thiab kev tuav haujlwm.

(1) Cov ntsiab lus tseem ceeb rau kev siv siliconcalcium hmoov:

Ntxiv nyiaj tswj:

0.3% -0.8% rau steelmaking, 0.2% -0.5% rau casting. Ntau qhov sib ntxiv tuaj yeem yooj yim tsim CaC₂ nyuaj thiab nkig theem, txo qhov toughness ntawm steel / cam khwb cia hlau;

Txoj kev pub mis:

Pub sib npaug hauv pawg kom tsis txhob muaj kev sib xyaw ua ke los ntawm kev noj zaub mov loj - ib zaug;

Cia tej yam kev mob:

Cov dej noo- pov thawj thiab tso cua kom tsis txhob oxidation thiab agglomeration (agglomeration yuav tsum tau crushing thiab tshuaj ntsuam ua ntej siv).

(2) Cov ntsiab lus tseem ceeb rau kev siv CalciumSilicon Cored Hlau

Pub Parameters:

Kho qhov ceev ceev raws li qhov tob ntawm cov hlau molten (1-3 m / s) kom ntseeg tau tias cov hlau cored yog yaj tag rau hauv cov hlau molten;

Matching Steel Qib:

Qib siab -calcium (xws liCa 31 Si55) yog haum rau deoxidation thiab desulfurization daim ntaub ntawv, thaum siab -silicon qib (xws liCa28 Si 60) tsim nyog rau daim ntawv thov inoculation;

Kev cia khoom:

Tsis txhob tshav ntuj ncaj qha thiab qhov chaw ntub dej kom tsis txhob xeb ntawm cov ntawv hlau, uas tuaj yeem cuam tshuam kev noj qab haus huv.