Khoom Taw Qhia

FGS400-12 poob ciab peev casting ntawm ductile hlau

Lwm yam khoom ntawm pob zeb cam khwb cia hlau

1. Kev poob siab

Kev poob siab ntawm cov hlau nplaum yog zoo dua li cov hlau thiab phem dua li cov hlau grey. Qhov siab dua tus nqi spheroidization, qhov kev poob siab poob qis dua. Cov cuab yeej damping ntawm grey cam khwb cia hlau txo qis nrog qhov nce ntawm qhov kub thiab txias, tab sis nws muaj kev cuam tshuam me ntsis ntawm cov hlau cam khwb cia hlau. Lub elastic modulus ntawm nodular cam khwb cia hlau yog siab dua li ntawm grey cam khwb cia hlau, yog li nws lub suab nthwv dej propagation ceev thiab ntuj zaus yog siab tshaj ntawm grey cam khwb cia hlau. Qib ntawm spheroidization tus nqi tuaj yeem kuaj los ntawm qhov sib txawv ntawm acoustic.

2. Txiav kev ua haujlwm

Nodular cam khwb cia hlau muaj ntau graphite, uas plays lub luag hauj lwm hauv kev txiav lubrication. Yog li ntawd, qhov txiav tsis kam ntawm cov hlau hlau yog me dua li cov hlau, thiab qhov txiav ceev yog siab dua. Qhov nce ntawm pearlite txo cov machinability ntawm cov hlau cam khwb cia hlau, thiab cov machinability ntawm bainitic ductile cam khwb cia hlau tsis zoo. Yog li ntawd, thaum siv cov hlau ductile hauv lub valve, matrix hom ferrite + pearlite yog siv.

3. Vuam complementarity

Cov hlau tsis tuaj yeem welded, tsuas yog welded. Thaum cov ntsiab lus ntawm tsawg-lub ntiaj teb magnesium alloy nyob rau hauv nodular cam khwb cia hlau yog siab, dawb gap los yog martensitic qauv yog yooj yim tsim nyob rau hauv weld thiab ze weld cheeb tsam, uas ua rau muaj kev ntxhov siab thiab tawg.

4. Thaum tshav kub kub tsis kam

Cov graphite hauv nodular cam khwb cia hlau yog sib cais los ntawm ib leeg thiab tuaj yeem cuam tshuam cov pa oxygen ntawm qhov kub thiab txias piv rau grey cam khwb cia hlau. Yog li ntawd, oxidation kuj thiab kev loj hlob tsis kam ntawm cov hlau ductile yog zoo dua li ntawm grey cam khwb cia hlau thiab malleable cam khwb cia hlau. Lub siab kub loj hlob tsis kam ntawm ferritic nodular cam khwb cia hlau yog zoo dua pearlitic nodular cam khwb cia hlau. Cov oxidation tsis kam thiab kub tsis kam ntawm cov hlau ductile tuaj yeem txhim kho los ntawm kev nce cov ntsiab lus ntawm Si lossis Al.

5. Corrosion kuj

Nyob rau hauv cov huab cua, qhov corrosion kuj ntawm cov hlau ductile yog zoo dua li cov hlau, uas zoo ib yam li grey cam khwb cia hlau thiab malleable cam khwb cia hlau. Lub corrosion kuj ntawm nodular cam khwb cia hlau nyob rau hauv av yog zoo dua li ntawm cov hlau thiab zoo ib yam li cov grey cam khwb cia hlau.

Lub pitting tsis kam ntawm nodular cam khwb cia hlau yog me ntsis muaj zog, tab sis lub zog poob ntawm nodular cam khwb cia hlau yeeb nkab tom qab corrosion yog me dua li ntawm grey cam khwb cia hlau yeeb nkab. Nyob rau hauv chav tsev kub, qhov corrosion kuj ntawm 0.5% sulfuric acid tov ntawm nodular cam khwb cia hlau yog roughly tib yam li cov grey cam khwb cia hlau. Tus nqi corrosion ntawm nodular cam khwb cia hlau yog qis dua li ntawm grey cam khwb cia hlau nyob rau theem pib, tab sis tus nqi corrosion kuj txo qis tom qab tsim cov graphitized txheej rau ntawm qhov chaw ntawm grey cam khwb cia hlau, thaum nodular cam khwb cia hlau tsis muaj qhov yuav txo qis, thiab yog. siab tshaj qhov grey cam khwb cia hlau nyob rau theem tom qab. Ductile cam khwb cia hlau thiab grey cam khwb cia hlau muaj corrosion kuj zoo nyob rau hauv alkali tov, zoo ib yam li hlau. Lub corrosion kuj ntawm nodular cam khwb cia hlau rau cov organic teeb meem, sulfide thiab molten hlau (tsawg melting point) yog zoo li cov grey cam khwb cia hlau.

6. Hnav tsis kam

Cov khoom siv hlau yog ib qho zoo hnav thiab hnav cov khoom siv txo qis, hnav tsis kam yog zoo dua li qub matrix ntawm grey cam khwb cia hlau, carbon steel thiab qis alloy steel.

(1) Lubrication thiab hnav tsis kam

Qhov hnav tsis kam ntawm nodular cam khwb cia hlau yog zoo dua li ntawm grey cam khwb cia hlau.

(2) abrasive hnav

Ductile hlau kuj muaj qee yam kev siv nyob rau hauv abrasive hnav tej yam kev mob. Txawm li cas los xij, piv nrog cov hlau cam khwb cia dawb thiab cov hlau tsis tshua muaj hlau, qhov hnav tsis kam ntawm cov hlau zoo tib yam tsis zoo heev, tsuas yog cov hlau nplaum hlau lossis hlau alloy Bainite ductile hlau tau zoo hnav tsis kam.

Zhongwei Precision muaj cov kev pabcuam hauv qab no

Detection Systems

Copper Silica Sol Investment Casting

Peb yog cov chaw tsim khoom ntawm "FGS400-12 Ductile hlau castings", yog tias koj xav tau cov ntaub ntawv ntxiv thov hu rau peb!