Khoom Taw Qhia

60-40-18} poob ntau siv yeeb yam peev txheej ntawm cov hlau ductab

Tshuaj lom neeg muaj pes tsawg leeg ntawm cov hlau ciam

Kev xaiv ntawm kev tsim nyog tshuaj muaj pes tsawg leeg yog kom ntseeg tau tias yog xim hlau ua kom zoo, tab sis kuj ua kom khov kho hlau muaj kev ua tau zoo.

1. Tsib Lub Ntsiab Lus

Cov pa roj carbon thiab silicona:

Vim tias pob graphite muaj cov nyhuv muaj zog me me rau ntawm matrix, tsis muaj qhov pom tseeb ntawm cov neeg kho tshuab hluav taws xob yog 3. {}}. 8%. Thaum txiav txim cov pa roj carbon-silicon cov ntsiab lus ntawm cov hlau condile, cov pa hluav taws xob yog xaiv ib ncig ntawm eutectic muaj pes tsawg leeg thiaj li ua kom pom kev ua haujlwm.

Thaum cov pa roj carbon cov ntsiab lus dhau lawm, lub casting yog ib qho yooj yim rau kev ntsws thiab tawg; Thaum cov pa hluav taws xob sib npaug yog qhov siab dhau, nws yog ib qho yooj yim los tsim cov duab puab ntab, ua rau muaj kev suav nrog. Silicon tuaj yeem txhim kho lub voj voog ntawm pob graphite, kho cov graphite, thiab txo qhov nyiam ntawm crystallization supercooling thiab lub qhov ncauj dawb. Nws yog feem ntau ntseeg tias thaum cov ntsiab lus silicon yog ntau dua 2.8%, lub tawv yuav raug txo kom tsawg, thiab cov tawv nqaij kom huv si yuav tau nce ntxiv.

Yog li ntawd, thaum xaiv cov Pa roj caricon cov ntsiab lus, txoj ntsiab cai ntawm cov pa roj carbon ntau thiab cov lus silicon ntawm castings yuav tsum muaj nyob rau hauv cov chaw txias.

Ferrite c: 3. {{6-4. {{{}}}}}}. 8%

Pearlite c: 3. {4-3. 8% si: 2. {}}. 4%

Manganese:

Nyob rau hauv nodular cam khwb cia hlau, manganese tsis tas yuav tsum tau ua txoj haujlwm no vim tias muaj kev muaj zog desulfurization muaj peev xwm ntawm nodular ntsiab. Manganese muaj kev sib koom ua ke loj heev, uas feem ntau ua rau muaj pawg ua koob tsheej uas yuav txhawb nqa kev ua kom muaj zog ntawm cov hlau du.

Raws li-cam khwb cia ferrite mn: 0. {3-0. 4%

Pearlitic Zas Hlau MN: {0. {4-0. 8%

Phosphorus:

Phosphorus muaj cov qauv sib cais muaj zog nyob hauv cov hlau uas muaj zog, thiab yog ib qho yooj yim los tsim cov hlau cosphorus utiously ntawm cov kab sib xyaw ntawm cov hlau muaj zog. Rau cov khoom siv siv hauv thaj chaw txias, nws yog qhov yooj yim los siv cov ntsiab lus phosphorus.

Cov ntsiab lus ntawm phosphorus yog tswj hwm hauv qab 0. 04-0. 06%.

Sulphur:

Kev sib xyaw ua ke ntawm cov leej faj thiab nodular ntsiab hauv nodular cam khwb cia hlau muaj zog heev, tab sis kuj tseem nce tus naj npawb ntawm kev suav nrog, ua rau muaj kev tsis xws luag hauv castings.

Cov teb chaws txawv teb chaws feem ntau yuav tsum tau hais tias cov neeg Sulphur cov ntsiab lus ntawm cov qauv ua kua, feem ntau tsis tuaj yeem ua tau zoo dua li {}.

2. Alloy Ntsiab Lus

Lub alloying cov ntsiab ntawm cov hlau sib xyaw ntawm cov molybdenum, tooj liab, chromium, antes, bismuth thiab lwm yam hlau.

Lub luag haujlwm tseem ceeb ntawm cov ntsiab no yog txhawm rau txhim kho lub zog ntawm cam khwb cia hlau thiab ruaj khov tus qauv matrix.

ZhongweI precision muaj cov kev pabcuam hauv qab no

Nrhiav Kom Tau Lub Tshuab

Tooj liab Silica Sol Peev Casting

Peb yog cov chaw tsim khoom ntawm "{{{{60-40-18 zas zeb castings", yog tias koj xav tau cov ntaub ntawv ntxiv thov hu rau peb!