Dab tsi yog qhov txawv ntawm cov tooj liab ntshiab, tooj dag, tooj liab, tooj liab liab thiab tooj liab dawb? Dab tsi ntawm tooj liab yog tooj liab npib ua los ntawm?
Hauv peb lub neej, cov khoom siv tooj liab tuaj yeem pom nyob txhua qhov chaw, xws li tooj dag, tooj liab dawb, tooj liab liab, tooj liab, thiab lwm yam. Muaj ntau ntau yam. Yog li, dab tsi yog qhov txawv ntawm ntau hom tooj liab? Peb yuav tsum paub qhov txawv ntawm lawv li cas?
Ntshiab tooj liab
Ntshiab tooj liab hu ua liab tooj liab, kuj hu ua liab tooj liab. Nws muaj plasticity zoo, zoo heev hluav taws xob conductivity thiab thermal conductivity, thiab yuav siv tau rau kub nias thiab txias nias tib lub sij hawm. Nws yog dav siv nyob rau hauv cov khoom xws li cables, xov hlau, thiab tshwj xeeb electro-etching tooj liab rau hluav taws xob sparks. High-purity liab tooj liab muaj cov qauv zoo, cov ntsiab lus oxygen tsawg, tsis muaj cov xuab zeb qhov muag, qhov pores, thiab cov hluav taws xob zoo heev. Nws yog qhov tsim nyog rau electro-etching pwm. Tom qab kev kho cua sov, lub electrode tsis muaj kev taw qhia thiab yog qhov tsim nyog rau kev sib tw zoo thiab raug ntaus.
tooj dag
Cov hlau uas muaj tooj liab thiab zinc hu ua tooj dag. Yog hais tias cov ntsiab lus tseem ceeb tsuas yog tooj liab thiab zinc, ces qhov no tsuas yog cov tooj dag ntau tshaj plaws, uas feem ntau yog siv los ua cov kav dej, li qub, lub tshuab cua txias sab hauv thiab sab nraud txuas cov kav dej thiab radiators.
Yog hais tias cov tooj dag muaj ntau tshaj li ob lub ntsiab lus, xws li txhuas, tin, manganese, npib tsib xee, hlau, silicon thiab lwm yam khoom, nws yog hu ua tooj dag tshwj xeeb. Qhov no tooj dag tshwj xeeb muaj siab hardness, siab zog thiab muaj zog tshuaj corrosion kuj.
Brass muaj zog hnav tsis kam. Seamless tooj liab raj ua los ntawm nws yog mos thiab hnav-resistant. Cov tooj dag tshwj xeeb no tau siv dav hauv cov khoom siv condensers, cov kav dej kub qis, cov kav dej thauj hauv nkoj, cov khoom siv hluav taws xob thiab lwm yam. Nws cov ntsiab lus tooj liab tsuas yog 62 ~ 68%.
Cupronickel
Yog hais tias cov tooj liab alloy siv npib tsib xee ua lub ntsiab ntxiv, ces peb hu nws cupronickel. Cupronickel muab faib ua cupronickel zoo tib yam ntawm tooj liab-nickel binary alloy thiab complex cupronickel nrog ntxiv hlau, zinc, txhuas thiab manganese ntsiab. Hauv kev lag luam, cupronickel muab faib ua hluav taws xob cupronickel thiab cov qauv cupronickel. Ntawm lawv, cov txheej txheem cupronickel yog tus cwj pwm los ntawm cov khoom siv zoo heev, zoo corrosion kuj thiab xim zoo nkauj. Hom khobronickel no yog siv dav, xws li precision machinery, chemical machinery, thiab eyeglass accessories. Hluav taws xob npib tsib xee nyiaj muaj zoo thermoelectric zog. Ntawm lawv, constantan thiab manganese tooj liab feem ntau yog siv los ua cov varistors, precision resistors, thiab precision hluav taws xob ntsuas.
Bronze
Bronze tau siv hauv kuv lub tebchaws rau ntau dua 3,000 xyoo. Nws tuaj yeem hais tau tias yog cov hlau siv thaum ntxov tshaj plaws hauv kuv lub tebchaws. Lub ntsiab lus tseem ceeb ntawm bronze yog hais txog tooj liab-tin alloy. Tom qab ntawd, rau qhov yooj yim ntawm kev tswj hwm, tag nrho cov tooj liab alloys tshwj tsis yog cov nyiaj npib tsib xee thiab tooj dag raug hu ua tooj liab. Thiab lub npe ntawm lub ntsiab tseem ceeb ntxiv yog ntxiv rau pem hauv ntej kom paub qhov txawv ntawm ntau hom tooj liab. Tin bronze nrog tin raws li lub ntsiab ntxiv tseem ceeb muaj kev ua haujlwm zoo tshaj plaws, cov khoom siv zoo, thiab kev sib txhuam zoo heev. Nws yog qhov tsim nyog rau kev tsim cov turbines, lub zog, thiab cov kabmob. Lead bronze yog siv los ua cov khoom siv bearing siv nyob rau hauv cov cav tov tam sim no thiab grinders. Aluminium bronze muaj zoo hnav tsis kam, corrosion kuj, thiab siab zog. Nws yog dav siv nyob rau hauv kev tsim cov high-load bushings, zog, marine propellers, thiab lwm yam Phosphor bronze muaj zoo conductivity, siab elastic txwv, thiab yog heev haum rau manufacturing precision springs thiab hluav taws xob tiv tauj ntsiab.
Yog li dab tsi ntawm tooj liab yog npib tooj liab thaum ub?
Nyob rau hauv ancient sij hawm, cov ntaub ntawv ntawm tooj liab npib nyob rau hauv txawv dynasties kuj txawv. Bronze, tooj dag, dawb tooj liab, liab tooj liab, thiab lwm yam yog siv los nrum tooj liab npib. Cov npib tooj liab nyob rau hauv kuv lub teb chaws thaum ub tau raug muab pov nrog tooj liab. Vim hais tias muaj pes tsawg leeg ntawm cov alloys sib txawv tsis zoo ib yam, cov nyiaj npib tooj liab kuj yuav tshwm sim hauv cov xim sib txawv. Feem ntau hais lus, daj tooj liab npib yog nrum nrog tooj liab-zinc alloys, thiab xiav tooj liab npib yog cam khwb cia nrog tooj liab-tin alloys. Nyob rau hauv thawj ib nrab ntawm Ming Dynasty, bronze yog cov khoom siv feem ntau siv rau casting tooj liab npib, thaum tooj dag siv nyob rau hauv ib nrab thib ob.
