Khoom Taw Qhia

X2CrNi189 stainless hlau casting txheej txheem ntau lawm

German tus qauv (EN) X2CrNi18-9 stainless hlau, siv tus qauv: DIN 17440-1979, Austenitic stainless hlau, Austenitic stainless hlau txheej txheem kev ua tau zoo, tshwj xeeb tshaj yog chromium-nickel austenitic stainless hlau, siv cov pa txhais tau tias ntawm kev tsim cov hlau tshwj xeeb tuaj yeem ua tiav ntau yam kev qhia tshwj xeeb ntawm daim hlau, raj, siv, xov hlau, tuav thiab forgings thiab castings.

Austenitic stainless hlau kuj tuaj yeem tsim cov castings. Txhawm rau txhim kho cov dej ntws ntawm cov kua hlau thiab txhim kho qhov kev ua tau zoo, cov alloy muaj pes tsawg leeg ntawm cov cam khwb cia hlau yuav tsum tau hloov kho: ua kom cov ntsiab lus silicon, so qhov ntau ntawm chromium thiab npib tsib xee cov ntsiab lus, thiab ua kom lub siab ntawm cov impurity. sulfur cov ntsiab lus.

X2CrNi18-9 stainless hlau, DIN txheem stainless hlau. Raws li rau 022Cr19Ni10, peb paub ntau dua nrog tus lej sib raug yog 304L. Piv nrog rau 304 zoo tib yam, 304L muaj cov ntsiab lus qis dua thiab tsis muaj qhov sib txawv loj hauv cov khoom siv tshuab. Feem ntau siv hauv vuam, vim tias cov ntsiab lus carbon tsawg, tuaj yeem ua rau muaj peev xwm tiv thaiv intergranular corrosion. (Cov ntsiab lus carbon ntawm 304 zoo ib yam yog min 0.15%, 304L yog min.0.030%, 304L yuav tsum softer).

Hom Tshuaj: X2CrNi18-9

Txheem: DIN 17400

Tshuaj muaj pes tsawg leeg:

Carbon C: Tsawg dua lossis sib npaug rau 0.03

Si: Tsawg dua lossis sib npaug rau 1.00

Mn: Tsawg dua lossis sib npaug rau 2.00

P: Tsawg dua lossis sib npaug rau 0.045

S: Tsawg dua lossis sib npaug rau 0.015

Chromium Cr: 17.00 ~ 19.50

Molybdenum hmoov: -

Nickel: 8 00 ~ 10.50

Nitrogen N: Tsawg dua lossis sib npaug rau 0.11

Lub npe hu ua peev txheej txheej txheem tsuas yog siv cov ntaub ntawv fusible (xws li siv quav ciab lossis yas) los ua tus qauv fusible (hu ua peev pwm lossis qauv), coated nrog ob peb txheej ntawm cov xim tshwj xeeb refractory, tom qab ziab thiab hardening rau daim ntawv. ib lub plhaub tag nrho, thiab tom qab ntawd siv cov ncu lossis dej kub kom yaj cov qauv ntawm lub plhaub, thiab tom qab ntawd lub plhaub tau muab tso rau hauv lub thawv xuab zeb, ntim nrog cov xuab zeb qhuav nyob ib ncig ntawm nws. Thaum kawg, cov cam khwb cia yog muab tso rau hauv lub qhov cub ci los ntawm kev kub kub roasting (xws li kev siv lub plhaub muaj zog, koj tsis tas yuav tsim thiab pwm tom qab tso tawm ntawm lub plhaub ncaj qha roasting), cam khwb cia lossis lub plhaub. Tom qab roasting, nyob rau hauv uas lub molten hlau yog poured kom tau lub casting.

Qhov tseeb qhov tseeb ntawm peev castings yog qhov siab, feem ntau mus txog CT4-6 (xuab zeb casting yog CT10 ~ 13, tuag casting yog CT5 ~ 7). Tau kawg, vim cov txheej txheem nyuaj ntawm kev nqis peev casting, muaj ntau yam cuam tshuam rau qhov tseeb qhov tseeb ntawm castings. Piv txwv li, lub shrinkage ntawm pwm, deformation ntawm peev pwm, hloov linear ntawm lub plhaub nyob rau hauv cov cua kub thiab txias txheej txheem, shrinkage tus nqi ntawm cov alloy thiab deformation ntawm lub casting thaum lub sij hawm solidification txheej txheem, thiab lwm yam. Qhov tseeb qhov tseeb ntawm qhov kev nqis peev zoo tib yam yog siab dua, tab sis nws qhov sib xws tseem yuav tsum tau txhim kho (qhov sib xws ntawm qhov casting siv cov khoom siv nruab nrab thiab kub kub yuav tsum tau txhim kho ntau heev).

Thaum nias lub peev pwm, lub siab nto tiav ntawm cov kab noj hniav yog siv, yog li qhov saum npoo ntawm cov peev pwm kuj tseem siab. Tsis tas li ntawd, lub plhaub yog ua los ntawm kub resistant tshwj xeeb binder thiab refractory khoom ua los ntawm refractory txheej nyob rau hauv lub peev pwm, thiab nto ntawm cov kab noj hniav nyob rau hauv ncaj qha kev sib cuag nrog cov molten hlau yog siab tiav. Yog li ntawd, qhov nto tiav ntawm peev castings yog siab dua li ntawm cov castings, feem ntau mus txog Ra.1.6 ~ 3.2μm.

Zhongwei Precision muaj cov kev pabcuam hauv qab no

Detection Systems

Copper Silica Sol Investment Casting

Peb yog cov chaw tsim khoom ntawm "FCD450 Ductile Iron Castings", yog tias koj xav tau cov ntaub ntawv ntxiv thov hu rau peb!