Cov txheej txheem rau kev txiav txim siab - zoosilicon hlauyog raws li "cov ntsiab lus siab silicon, tsis muaj impurities, thiab ruaj khov lub cev." Cov cim tseem ceeb thiab cov qauv yuav tsum muaj raws li hauv qab no:
| Qhov taw qhia hom | Core Indicators | Siab -Quality Requirements (los ntawm Qib) | Kev cuam tshuam ntawm cov qauv tshaj |
| Cov ntsiab lus tseem ceeb | Silicon (Si) Cov ntsiab lus | Electronic Qib Ntau dua lossis sib npaug li 99.9%, Chemical Qib Siab dua lossis sib npaug 99.5%, Siab-End Industrial Qib Siab dua lossis sib npaug rau 99.0% | Cov ntsiab lus qis dua ua rau qis alloying / kev ua haujlwm zoo thiab cov khoom lag luam tsis zoo. |
| Kev phom sij impurity Index | Sulfur (S) Cov ntsiab lus | Tsawg dua lossis sib npaug li 0.03% (Electronic Qib Tsawg dua lossis sib npaug li 0.01%) | Ua rau kub brittleness nyob rau hauv steel / aluminium alloys thiab txo photovoltaic cell conversion efficiency. |
| Qhov taw qhia Hazardous Impurity | Phosphorus (P) Cov ntsiab lus | Tsawg dua lossis sib npaug li 0.04% (Electronic Qib Tsawg dua lossis sib npaug li 0.01%) | Ua rau cov hlau brittleness thiab txo qis -kub los cuam tshuam toughness |
| Txwv Impurity Indicators | Hlau (Fe) / Aluminium (Al) / Calcium (Ca) Cov ntsiab lus | Electronic Qib Tsawg dua lossis sib npaug li 0.01% / 0.01% / 0.005%; Chemical Qib Tsawg dua lossis sib npaug li 0.3% / 0.3% / 0.05% | Cov txheej txheem nkig, cuam tshuam cov khoom siv zog thiab kev ua haujlwm. |
| Lub cev muaj zog | Tshauv Ntsiab Lus | Tsawg dua lossis sib npaug li 0.5% (Electronic Qib Tsawg dua lossis sib npaug li 0.1%) | Nce metallurgical slag ntau lawm, txo smelting efficiency. |
| Cov cuab yeej ntsuas lub cev | Cov dej noo | Tsawg dua lossis sib npaug li 0.3% | Ua rau porosity hauv castings thiab hloov pauv hauv cov tshuaj tiv thaiv kab mob |
| Lub cev muaj zog | Loj Distribution | Loj (5-50mm, Ntau dua lossis sib npaug li 90%) | Qhov loj me me tsis sib xws cuam tshuam rau qhov sib xws ntawm kev pub mis; Cov khoom zoo tshaj plaws yog nquag oxidation. |
| Cov cuab yeej ntsuas lub cev | Cov ntsiab lus tsis haum | Tsawg dua los yog sib npaug li 0.5% | Reflects lub maturity ntawm cov txheej txheem ntau lawm; Cov qib siab heev tuaj yeem ua rau muaj kev hloov pauv hauv kev sib xyaw. |
Cov txheej txheem thiab cov xwm txheej siv tau rau qib sib txawv ntawm qib siab -Zoo Silicon hlau
(1) Tshuaj lom neeg- qib silicon hlau (Si Ntau dua lossis sib npaug rau 99.5%): Nruab nrab-rau- siab- qib kawg daim ntawv thov
Kev sib xyaw:Si Ntau dua lossis sib npaug 99.5%, S Tsawg dua lossis sib npaug li 0.03%, P Tsawg dua lossis sib npaug 0.03%, Fe / Al / Ca Tsawg dua lossis sib npaug 0.3% / 0.3% / 0.05%, Tshauv Tsawg dua lossis sib npaug 0.3%;
Lub cev muaj zog:Moisture Tsawg dua los yog sib npaug li 0.3%, Volatile matter Tsawg dua lossis sib npaug li 0.5%, qhov loj 10-50mm;
Siv tau scenarios:Organosilicon synthesis, silane coupling tus neeg sawv cev ntau lawm, silicon hloov pauv ntau dua 90%, 5% -8% siab dua qib kev lag luam;
Tej kev siv:Organosilicon cov nroj tsuag siv tshuaj lom neeg - qib silicon hlau, methylchlorosilane monomer purity Ntau dua los yog sib npaug rau 99.2%, los ntawm - khoom txo 3%-5%.
(2) Muaj siab heev-Xim Silicon hlau (Si Ntau dua lossis sib npaug rau 99.0%): General High-Qib Zoo
Kev sib xyaw:Si Ntau dua lossis sib npaug 99.0%, S Tsawg dua lossis sib npaug 0.05%, P Tsawg dua lossis sib npaug 0.04%, Fe / Al / Ca Tsawg dua lossis sib npaug 0.5% / 0.5% / 0.1%, Tshauv Tsawg dua lossis sib npaug li 0.5%;
Lub cev muaj zog:Moisture Tsawg dua lossis sib npaug li 0.3%, Volatile Matter Tsawg dua lossis sib npaug li 0.5%, Loj 5-50mm;
Kev siv tsim nyog:High-kawg aluminium alloys, precision casting, siab-kawg refractory khoom; nce tensile zog ntawm aluminium alloys los ntawm 15% -20%;
Daim Ntawv Thov:Thaum siv qib no ntawm silicon hlau hauv tsheb tuag- nrum txhuas alloys (A356), qhov porosity defect npaum li cas ntawm castings txo los ntawm 1.2% mus rau 0.3%.
Txoj Kev Txiav Txim Siab rau Kev Ua Haujlwm Zoo -Silicon hlau zoo
Kev txheeb xyuas qhov sib xyaw
Cov cuab yeej kuaj xyuas:Direct- nyeem ntawv spectrometer (nrhiav ceev) los yog ICP-MS (paub meej, haum rau qib hluav taws xob);
Cov khoom kuaj pom:Si, S, P, Fe, Al, thiab Ca yuav tsum tau kuaj. Rau qib hluav taws xob, cov kab tsis huv xws li Na thiab K yuav tsum tau sim;
Kev Txiav Txim Siab:Raws li cov qhab-nees sib piv txwv, tshaj qhov txwv rau ib qho impurity qhia tias tsis yog -zoo.
Kev Tshawb Nrhiav Lub Cev Khoom
Kev Tshawb Fawb Cov Ntsiab Lus:Noj 50 g ntawm cov qauv thiab hlawv nws mus tas li qhov hnyav. Yog tias cov hmoov tshauv tshaj qhov txwv, nws tsis tsim nyog;
Moisture Content Detection: Drying and weighing method (drying at 105℃ for 2 hours). If the moisture content is >0.3%, nws yuav tsum tau qhuav ua ntej siv;
Kev Ntsuas Qhov Loj:Sieve siv tus qauv sieve. Yog hais tias qhov kev faib ua feem ntawm 5-50 hli hais<90%, the size is unqualified, affecting the uniformity of feeding.
Qhov tshwm sim thiab txheej txheem Traceability txiav txim
Qhov tsos:High- zoo silicon hlau yog cov nyiaj tsis sib xws- grey thaiv uas tsis muaj oxide txheej rau ntawm qhov chaw (cov oxide txheej yuav txo cov reactivity) thiab tsis muaj impurity agglomeration;
Txheej txheem Traceability:Ua ntej cov khoom ua los ntawm siab -purity quartz xuab zeb (SiO₂ Ntau dua lossis sib npaug li 99.5%) thiab hluav taws xob ntsuab smelting, vim tias kev tswj tsis huv yog qhov ruaj khov dua.
Cov teeb meem zoo sib xws thiab cov ntsiab lus zam
(1) Kev pheej hmoo ntawm ntau dhau impurities
Kev phom sij:S / P ntau dhau ua rau kub / txias brittleness ntawm hlau; Fe / Al / Ca ntau dhau ua rau nkig inclusions;
Kev zam:Xav kom cov neeg muag khoom muab SGS/Intertek cov ntaub ntawv xeem thaum lub sij hawm yuav khoom, thiab ua random sampling thiab rov- tshuaj xyuas cov ntsiab lus impurities rau txhua batch.
(2) Cov teeb meem noo noo thiab oxidation
Kev phom sij:Cov dej noo ntau dhau ua rau cov porosity hauv castings thiab cov tshuaj lom neeg txawv txav; cov oxide txheej (SiO₂) txo cov reactivity;
Kev zam:Khaws rau hauv qhov chaw qhuav thiab qhov cua (cov av noo tsawg dua lossis sib npaug li 60%), hauv cov ntim ntim, nrog lub sijhawm cia tsis pub tshaj 6 lub hlis, thiab siv sai li sai tau tom qab qhib.
(3) Teeb meem ntawm qhov tsis sib xws
Kev phom sij:Particle loj heev (<5mm) are easily oxidized and burned, while overly coarse particles (>80mm) tsis yaj tag;
Kev zam:Qhov loj me me yuav tsum yog 5-50mm. Coarse hais ntau dhau yuav tsum tau crushed thiab tshuaj xyuas ua ntej siv.
