Qhov sib txawv ntawm cov khoom ntawm ntau hom tooj liab alloys
Cov khoom ntawm tooj liab thiab tooj liab alloys
1. Cov hluav taws xob zoo thiab thermal conductivity: tooj liab thiab nws cov alloys muaj cov khoom siv hluav taws xob zoo thiab thermal conductivity, yog li lawv tau siv dav hauv cov khoom siv hluav taws xob, hluav taws xob, kev sib txuas lus thiab lwm yam.
2. Zoo plasticity thiab processability: tooj liab alloy muaj zoo plasticity thiab yuav siv tau los tsim cov khoom ntawm ntau yam duab thiab ntau thiab tsawg.
3. Zoo corrosion kuj: tooj liab alloy tuaj yeem tswj kev ruaj ntseg hauv ntau qhov chaw hnyav.
4. Zoo zog thiab hardness: tooj liab alloy muaj siab zog thiab hardness thiab yuav siv tau los tsim cov khoom uas yuav tsum tau muaj zog thiab hardness.
5. Kev ua haujlwm kub zoo thiab hnav tsis kam: tooj liab alloy muaj kev ua haujlwm ruaj khov nyob rau hauv qhov kub thiab txias, kev kub siab, kev kub ceev thiab lwm yam kev ua haujlwm, thiab tsim nyog rau kev tsim cov khoom sib xws. Tshwj xeeb tshaj yog Sn-muaj ntau cov khoom siv tooj liab alloy hnav-tiv taus qhov chaw, bushings, bearing bushes, turbines, thiab lwm yam.
6. Cov khoom siv tshuaj tua kab mob zoo: tooj liab alloy muaj qee yam tshuaj tua kab mob thiab tuaj yeem siv los tsim cov khoom siv kho mob, cov khoom siv ua zaub mov, thiab lwm yam. Tso cov tooj liab ions hauv dej nruab nrab. Cu ions muaj cov nyhuv inhibiting kev loj hlob ntawm cov kab mob thiab cov kab mob hauv dej. Yog li ntawd, nws yog siv nyob rau hauv cov dej haus xa kav, tshuab ntxhua khaub ncaws sab hauv chim, thiab nkoj propellers.
7. Zoo electromagnetic shielding kev ua tau zoo: tooj liab thiab qee cov tooj liab alloys tuaj yeem thaiv qhov kev nthuav tawm ntawm electromagnetic tsis. Lub magnetic susceptibility yog tsawg heev thiab yog siv nyob rau hauv compasses, radars thiab lwm yam ib puag ncig uas tiv thaiv sab nraud magnetic teb.
8. Cov ntaub ntawv zoo ib puag ncig: Qee cov tooj liab alloys tsis muaj tshuaj lom thiab tuaj yeem siv los ua cov khoom uas cuam tshuam nrog cov khoom noj.
9. Kev lag luam: Tus nqi ntawm tooj liab alloy yog tus nqi qis thiab tsim nyog rau kev siv loj.
Kev faib tawm ntawm tooj liab thiab tooj liab alloys
1. Ntshiab tooj liab kuj hu ua liab tooj liab. Vim tias cov tooj liab liab muaj cov ntsiab lus tooj liab siab tshaj plaws, muaj qhov purity ntau dua 99.5%, thiab muaj qhov zoo ductility thiab saj zawg zog, nws feem ntau siv rau kev sib khi zoo li qub ntawm cov kav dej hauv lub tshuab nqus tsev sealing.
2. Copper alloys tau muab faib ua tooj dag (xws li tooj dag, tooj dag tshwj xeeb), bronze (tin bronze, aluminium bronze, beryllium bronze, silicon bronze, lead bronze), thiab dawb tooj liab (xws li tooj liab dawb, tshwj xeeb tooj liab).
ntshav liab
Cov tooj liab ntshiab yog muab faib ua tooj liab zoo tib yam, deoxidized tooj liab, oxygen-dawb tooj liab thiab tooj liab tshwj xeeb raws li tus nqi ntawm lwm cov ntsiab lus nws muaj. Nws muaj cov thermal conductivity zoo, hluav taws xob conductivity, tsis muaj hlau nplaum thiab plasticity. Nws muaj corrosion kuj zoo nyob rau hauv cov huab cua thiab dej tshiab, tab sis tsis zoo corrosion kuj nyob rau hauv dej hiav txwv dej.
Ordinary ntshiab tooj liab: muaj cov pa oxygen siab thiab tsis tuaj yeem ua kom sov hauv kev txo cov xov xwm kom tsis txhob muaj hydrogen embrittlement. Nws yog tsuas yog siv rau hluav taws xob thiab thermal conductive Cheebtsam.
Deoxidized tooj liab: Qee yam deoxidizer ntsiab lus (P, Mn) nyob twj ywm, txo qis kev ua ntawm tooj liab thiab tsuas yog siv los ua cov khoom siv.
Oxygen-dawb tooj liab: tsis tshua muaj oxygen thiab impurities, feem ntau yog siv hauv cov khoom siv hluav taws xob.
Cov tooj liab tshwj xeeb: Muaj cov kab sib txawv ntawm cov ntsiab lus tshwj xeeb, xws li As, Ag, Te thiab cov tooj liab dispersed, thiab feem ntau yog siv rau cov khoom siv hluav taws xob.
Tooj dag
Brass yog muab faib ua tooj dag zoo tib yam thiab tooj dag tshwj xeeb.
Ordinary tooj dag: feem ntau tsuas muaj ob lub ntsiab lus, xws li Cu-Zn binary alloy. Piv txwv li, H68 sawv cev rau tooj liab-zinc alloy uas muaj 68% Cu.
Thaum corrosion tshwm sim, zinc yog corroded (galvanized), yog li nws muaj corrosion kuj zoo. Qhov siab dua cov ntsiab lus zinc, qhov pheej yig dua, nrog rau qhov siab tshaj plaws ntawm 46%;
Qhov siab dua cov ntsiab lus zinc, qhov kev pheej hmoo ntawm kev ntxhov siab corrosion ntau dua. Txawm li cas los xij, qhov sib ntxiv ntawm Si thiab As tuaj yeem txo qhov kev pheej hmoo ntawm qhov tawg no.
Xya caum-peb tooj dag, tseem hu ua cartridge case brass, yog tsim los ntawm H70 thiab feem ntau siv los ua cov ntaub ntawv cartridge.
21 tooj dag muaj txog 65% tooj liab thiab tuaj yeem siv los ua tooj liab rods, tooj liab xov hlau, tooj liab ntawv, tooj liab raj, ntoo screws, springs, thiab lwm yam.
*** tooj dag muaj li ntawm 60% tooj liab thiab feem ntau yog siv los ua cov kav dej kub, cov ntawv tooj liab, tooj liab, tooj liab, thiab lwm yam.
Feem ntau siv tooj dag qauv rau cov qauv tsis tsim qauv xws li H57, H59, H62, H65, H68, thiab lwm yam. Txhua tus ntawm lawv muaj cov yam ntxwv sib txawv:
H57 tooj dag: muaj plasticity zoo thiab corrosion kuj, haum rau ua nyias-walled qhov chaw thiab complex-shaped khoom.
H59 tooj dag: siab zog thiab zoo corrosion kuj, haum rau ua cov khoom los yog cov khoom uas yuav tsum tau muaj zog thiab corrosion kuj.
H62 tooj dag: Nws muaj lub zog siab thiab hardness, zoo hnav tsis kam, thiab tsim nyog rau kev ua cov khoom lossis cov khoom uas yuav tsum tau tiv taus cov khoom loj.
H65 tooj dag: Nws muaj kev tiv thaiv corrosion zoo thiab lub zog, thiab kuj muaj qee qhov kev sib tw. Nws yog qhov tsim nyog rau kev ua cov khoom lossis cov khoom uas yuav tsum tau tiv taus qee yam kev cuam tshuam thiab kev co.
H68 tooj dag: Nws muaj zog thiab hardness, nrog rau zoo corrosion kuj thiab toughness. Nws yog qhov tsim nyog rau kev ua cov khoom lossis cov khoom uas yuav tsum tau tiv taus cov khoom loj thiab dais qee yam kev cuam tshuam thiab kev co.
Tshwj xeeb tooj dag: ntau yam alloys uas muaj ntau tshaj li ob lub ntsiab lus.
Txhuas tooj dag: Cov khoom siv txhuas tuaj yeem txhim kho lub zog, hardness thiab corrosion kuj ntawm tooj dag, tab sis tib lub sij hawm txo nws cov plasticity, yog li nws yog tsim rau siv nyob rau hauv condenser hlab thiab lwm qhov chaw ntawm hiav txwv hlab ntsha uas yuav tsum tau corrosion kuj.
Tin tooj dag: Tin keeb tuaj yeem txhim kho lub zog ntawm tooj dag thiab nws cov corrosion kuj rau seawater. Nws yog feem ntau siv nyob rau hauv kev tsim khoom ntawm nkoj thermal khoom thiab propellers. Txawm li cas los xij, nws yuav tsum raug sau tseg tias cov ntsiab lus tin hauv tin tooj dag feem ntau yog nyob rau hauv thaj tsam ntawm 0.5% mus rau 1.5%. Cov tin ntau dhau yuav cuam tshuam rau cov yas deformation ntawm cov hlau. Feem ntau siv tin tooj dag suav nrog HSn70-1, HSn62-1 thiab HSn60-1.
Lead tooj dag: Cov khoom siv lead ua tuaj yeem txhim kho qhov kev ua tau zoo ntawm tooj dag, yog li nws feem ntau siv rau hauv kev tsim cov khoom uas yuav tsum tau ua kom zoo, xws li moos thiab watches.
Manganese tooj dag: Lub solubility ntawm manganese keeb hauv cov khoom tooj dag yog qhov loj. Thaum 1% mus rau 4% manganese ntxiv rau tooj dag, lub zog thiab corrosion kuj ntawm cov hlau tuaj yeem txhim kho tau zoo yam tsis txo nws cov yas.
Hlau tooj dag: Cov khoom hlau tuaj yeem txhim kho cov khoom siv dag zog thiab kev ua haujlwm ntawm tooj dag. Feem ntau siv hlau tooj dag qib yog Hfe59-1-1, nyob rau hauv uas cov ntsiab lus hlau feem ntau yog tsawg dua 1.5% thiab muaj zog thiab siab tawv.
Nickel tooj dag: Nickel keeb tuaj yeem txhim kho qhov corrosion kuj ntawm tooj dag nyob rau hauv qhov chaw thiab dej hiav txwv.
