Cam khwb cia hlau yog dab tsi?
Cam khwb cia hlau yog ib pawg ntawm cov hlau alloys uas feem ntau muaj ntawm 2% thiab 4% carbon.Nyob ntawm seb hom cam khwb cia hlau, nws tuaj yeem ncav cuag li 5%.Nws yog tsim los ntawm smelting hlau ore los yog npua hlau thiab sib tov nrog ntau yam seem hlau thiab lwm yam alloys.Tom qab ntawd cov khoom molten yog poured rau hauv pwm, los yog cam khwb cia.Nws solidifies rau hauv pwm lub puab yam tsis muaj kev cuam tshuam nws lub zog.Cam khwb cia hlau cov ntsiab lus siab-carbon muab nws zoo heev hnav tsis kam thiab lub zog.
Dab tsi yog malleable cam khwb cia hlau?
Malleable cam khwb cia hlau yog tsim los ntawm annealing tshav kub kho ntawm cam khwb cia hlau.Cov txheej txheem no txo cov ntsiab lus carbon thiab txhim kho kev ua haujlwm thiab ductility.Thaum pib, dawb cam khwb cia hlau - lwm hom cam khwb cia hlau nrog cov ntsiab lus carbon siab - yog cam khwb cia.Nws yog tom qab ntawd cua sov hauv qab nws cov ntsiab lus melting rau lub sijhawm ntev, ua rau cov pa roj carbon hloov mus rau graphite.Qhov no tshwm sim nyob rau hauv tsim ntawm nodules los yog spheres, tsim malleable cam khwb cia hlau.Cov txheej txheem annealing txo cov brittleness, txhim khu kev tiv thaiv kom tawg thiab ua kom khoov thiab shaping yam tsis muaj cracking.
Cam khwb cia hlau khoom
Cov yam ntxwv ntawm cam khwb cia hlau yog dab tsi?Qhov ntawd yog nyob ntawm hom cam khwb cia hlau, uas peb tau teev tseg hauv qab no.Qhov siab dua cov ntsiab lus ntawm cov pa roj carbon monoxide, cov hlau cam khwb cia ntau dua, ua rau nws yooj yim rau kev tawg thiab tawg hauv kev ntxhov siab.Nrog siab thermal huab hwm coj, cam khwb cia hlau kuj muaj cov cua sov zoo.
| Hom cam khwb cia hlau | Cov khoom ntawm cam khwb cia hlau |
| Grey cam khwb cia hlau | Tsawg zog tensile thiab tsis zoo li ductile li lwm yam cam khwb cia hlau;corrosion resistant;heev brittle - nyuaj ntawm tsim ib tug du nto;zoo heev thermal conductor thiab qib siab ntawm kev co damping. |
| Dawb cam khwb cia hlau | Tsis weldable;siab compressive zog thiab zoo hnav tsis kam;cov khoom zoo heev rau kev siv tsis tshua muaj kev cuam tshuam. |
| Ductile cam khwb cia hlau | Nodular graphite nyob rau hauv nws cov microstructure los ntawm kev sib ntxiv ntawm magnesium, muab siab zog, toughness thiab ductility tshaj grey hlau. |
| Compacted graphite hlau | Graphite qauv, cov khoom sib txuam yog sib xyaw ntawm grey thiab dawb hlau, siab zog tensile thiab txhim kho ductility dua grey hlau. |
Dab tsi yog cam khwb cia hlau siv rau?
Kev siv cam khwb cia hlau yog nyob ntawm hom cam khwb cia hlau.Koj yuav pom qee qhov sib tshooj hauv qab no.Peb kuj tseem suav nrog kev siv cov cam khwb cia hlau.
| Cam khwb cia hlau siv | Siv rau cam khwb cia hlau |
| Grey cam khwb cia hlau | Cov kav dej, lub cev valve, qhov chaw valve, lub tshuab cuab yeej vaj tse, nres nruas |
| Dawb cam khwb cia hlau | Daim ntawv thov qhov twg muaj zawv zawg kev sib txhuam ntawm ob qhov chaw, piv txwv li hnav daim hlau & liner rau cov khoom siv mining, cement mixers, pob zeb thiab qee qhov kos duab tuag & extrusion nozzles |
| Ductile cam khwb cia hlau | Cov kav dej & cov kav dej phwj tuaj, tsheb laij teb & siv cov khoom, tsheb thiab diesel crankshafts, pistons & lub tog raj kheej taub hau;hluav taws xob fittings, hloov lub thawv, lub cev muaj zog ncej & Circuit Court breaker qhov chaw;Cov khoom siv mining: hoist nruas, tsav tsheb, flywheels thiab elevator thoob;& steel zeb: rauv qhov rooj & rooj yob |
| Compacted graphite hlau | Diesel cav blocks, turbo vaj tse, tso manifolds |
| Malleable cam khwb cia hlau | Automotive tsav tsheb ciav hlau & qag Cheebtsam, cov khoom siv ua liaj ua teb thiab kev tsheb ciav hlau;kuj, expansion pob qij txha thiab railing castings ntawm txuas hniav, saw-hoist sib dhos, muaj casters, yeeb nkab fittings, & txuas rods |
Cam khwb cia hlau vs malleable hlau
Cov khoom ntawm malleable cam khwb cia hlau muaj xws li tshwj xeeb machinability, toughness thiab ductility.Shock resistant, nws muaj peev xwm ua tau zoo heev los tiv thaiv kev ntxhov siab ntau.
Malleable hlau yog yooj yim ua hauj lwm nrog dua cam khwb cia hlau.Piv txwv li, malleable hlau railings los yog malleable yeeb nkab fittings yog ua tau nyob rau hauv intricate designs.Nws feem ntau muaj cov ntsiab lus melting ntau dua li cov cam khwb cia hlau ntawm 1260 ° C - dua, qhov no nyob ntawm cov alloys hauv cov cam khwb cia hlau, xws li cov pa roj carbon ntau.Tab sis cam khwb cia hlau feem ntau qis melting point muab nws zoo castability, yog li ntawd nws yooj yim pours rau hauv pwm yam tsis txias sai heev.
Lwm qhov kev sib piv: malleable hlau vs. cam khwb cia hlau fittings.Malleable hlau tsis tuaj yeem sib cais kom yooj yim tshem tawm, zoo li cam khwb cia hlau fittings tuaj yeem.
Qhov zoo ntawm malleable cam khwb cia hlau
Thaum twg siv cov malleable cam khwb cia hlau ua kom nkag siab?Thaum koj xav tau cov txiaj ntsig no:
Ductility - zoo tagnrho rau cov ntawv thov uas yuav xav tau kev ua haujlwm loj thaum lub sijhawm ua tiav.Piv nrog rau cov hlau nplaum, nws tsis muaj tib theem ntawm tensile lub zog, elasticity thiab cuam tshuam tsis kam, tab sis nws tseem yooj yim ua rau machining tsis tawg.
Yuav tsum flattened thiab hammered, piv rau qee cov cam khwb cia hlau uas yuav tawg lossis tawg.
- Yuav luag muaj zog li grey cam khwb cia hlau.
- Kev cuam tshuam zoo ntawm qhov kub tsis tshua muaj siab.
Disadvantages ntawm malleable cam khwb cia hlau
Lub cev khoom ntawm malleable cam khwb cia hlau muaj qhov tsis zoo, Nco ntsoov nco ntsoov cov khoom tsis zoo:
Shrinks thaum txias, raws li nws poob ntim.Tag nrho cov cam khwb cia hlau - lossis ib yam khoom siv - ua qhov no rau qee qhov kev kawm, tab sis nws tau hais ntau dua nrog cov hlau cam khwb cia hlau.
Tsawg corrosion kuj.
Tsis muaj zog npaum li cov hlau cam khwb cia hlau lossis hlau.Rau daim ntawv thov xav tau siab tensile los yog compressive zog, xaiv lwm cam khwb cia hlau.
Kuj tseem tuaj yeem ua nkig ntawm qhov kub thiab txias, ua rau nws yooj yim rau kev tawg.
Post lub sij hawm: May-13-2024