Oxygen-dawb tooj liab: nta, txiaj ntsig, kev siv
Oxygen-dawb tooj liab: nta, txiaj ntsig, kev siv

Video: Oxygen-dawb tooj liab: nta, txiaj ntsig, kev siv

Video: Oxygen-dawb tooj liab: nta, txiaj ntsig, kev siv
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Anonim

tooj liab yog cov ntxhia uas muaj nyob hauv tib neeg lub neej rau ntau txhiab xyoo. Nyob rau hauv ancient sij hawm, nws yog tsuas yog siv los ua bronze alloyed nrog tin. Hauv Latin, nws lub npe yog Cuprum. Nws tau muab rau nws los ntawm cov kob thaum ub ntawm Cyprus, uas yog ib qho ntawm thawj qhov chaw uas tooj liab raug mined thiab smelted los ntawm mines.

keeb kwm keeb kwm, tus yam ntxwv ntawm tooj liab

tooj liab belongs rau qhov kev txiav txim ntawm cov tshuaj lom neeg yooj yim. Nyob rau hauv nws cov natural (ntshiab) daim ntawv, nws yog ib tug hlau nrog ib tug liab-txiv kab ntxwv tint. Nws yog siv los ua ntau yam khoom, uas suav nrog cov xaim hluav taws xob, tais diav, kav dej, tsheb radiators, thiab lwm yam.

Cov ntaub ntawv los ntawm cov kws tshawb fawb keeb kwm yav dhau los qhia tias tooj liab pib siv ntau tshaj kaum txhiab xyoo dhau los. Yog li cov tooj liab pendant, nrhiav pom nyob rau sab qaum teb ntawm Iraq niaj hnub no, tau ua nyob ib ncig ntawm 8700 BC.

Ntuj tooj liab nugget
Ntuj tooj liab nugget

tooj liab muaj cov thermal thiab hluav taws xob conductivity thiab yooj yim rau txheej txheem kub thiab txias. Nws muajheev corrosion kuj. Qhov no yog vim lub fact tias tooj liab tsim ib tug nyias oxide tiv thaiv txheej ntawm nws nto vim nws cov tshuaj tiv thaiv nrog oxygen.

tooj liab tau pom dav siv hauv kev tsim cov suab nrov, hluav taws xob thiab lwm yam xov hlau, tam sim no muaj cov hlau uas muaj purity siab lossis nrog me me ntxiv ntawm cov nyiaj, arsenic, phosphorus, tellurium, sulfur.

Txhim txheej txheem

Cov purified oxygen-dawb tooj liab yog tsim nyob rau hauv cov txheej txheem hu ua hluav taws xob refining. Nws nyob ntawm lub cathodes ntawm hluav taws xob hlwb, raws li qhov tshwm sim ntawm nws muaj lub npe txawv - cathode tooj liab. Lub purity nce mus txog 99.99%. Cov hlau zoo li no tseem hu ua tooj liab tsis muaj oxygen, uas muaj kev ua kom huv huv siab (OFC - Oxygen-Free Copper).

Oxygen Free Copper Cog
Oxygen Free Copper Cog

Molten ntshiab tooj liab yog tom qab nchuav rau hauv cov pwm tshwj xeeb uas muaj cov square lossis duab plaub. Cov txheej txheem no tshwm sim hauv lub tshuab nqus tsev, thaum tsis muaj oxygen, uas tiv thaiv nws txoj kev nkag mus rau hauv cov hlau molten. Qhov tsis muaj oxygen impurities nyob rau hauv xws li tooj liab ua rau nws cov hluav taws xob conductivity thiab lub zog.

Kev huv

Oxygen-dawb OFC tooj liab muaj ntau qib kev ua kom huv. Lub purity ntawm cov hlau yog qhia raws li nram no: " N". Hloov chaw ntawm lub hnub qub (), tus lej raug tso tawm uas qhia cov ntaub ntawv hais txog tus lej cuaj tom qab tus lej lej. Yog li, lub npe ntawm cov hlau tsis muaj oxygen OFC 6N qhia tias cov hlau ntshiab hauv nws yog 99.999999%. Tus nqi ntawm txawv teb chaws yog 0.000001%

Thawj qhov kev tsim khoom ntawm 6N zoo tooj liab tau ua nyob rau xyoo 1985 hauv Nyiv los ntawm Nippon Mining Co. High purified oxygen-dawb tooj liab tau mus rau hauv ntau lawm hauv 1987. Cov cheeb tsam tseem ceeb ntawm daim ntawv thov ces yog acoustic xov hlau, interconnect network cables.

Tam sim no, ntau lub tuam txhab tsim khoom hauv ntiaj teb, suav nrog Lavxias Federation, tsim cov tooj liab ntshiab.

Daim ntawv tooj liab
Daim ntawv tooj liab

Qee lub tuam txhab thov tias lawv tau ua tiav qib kev ua kom huv siab dua 6 -7N, 8N, thiab lwm yam. Tab sis nws yuav tsum tau nco ntsoov tias tam sim no tsis muaj kev sib koom ua ke hauv kev txiav txim siab rau kev purity ntawm oxygen-dawb tooj liab. thiab nws qhov zoo. Qee qhov xwm txheej, qhov muaj cov impurities tsuas yog tsis suav nrog. Feem ntau, xws li txawv teb chaws suav nrog nyiaj.

Metal Virtues

Oxygen Free Copper OFC cov txiaj ntsig suav nrog:

  • hauv lub tshuab nqus tsev, thaum cua sov, nws tsis tawg lossis ua nkig;
  • muaj peev xwm hloov tau yooj yim thaum lub sij hawm txias deformation (thaum raug rau siab ntawm chav tsev kub los yog ze rau lawv);
  • tsis hloov xim thaum nyob hauv qhov sib txawv;
  • qhov nruab nrab hluav taws xob tsis kam ntawm cov hlau zoo li no;
  • kev ua tau zoo ib txwm siab;
  • cov hlau no yog homogeneous hauv nws cov qauv;
  • ua tiav los ntawm kev sib tsoo thiab vuam.

Applications

Vim nws cov khoom zoo thiab cov khoom, tsis muaj oxygentooj liab tau pom daim ntawv thov nyob rau hauv ntau yam khoom, uas yog:

  • transformer windings yog tsim los ntawm nws;
  • siv hauv kev tsim cov coaxial cables;
  • siv hauv tshuab hluav taws xob thiab khoom siv;
  • ib qho tseem ceeb hlau hauv superconductors thiab linear accelerators;
  • nws yog ib qho tseem ceeb ntawm cov txheej txheem ntawm kev sib txuas lus hauv xov tooj thiab cables npaj rau kev ua haujlwm hauv dej;
  • yog ib feem ntawm txoj kab hluav taws xob tam sim no.
Oxygen dawb tooj liab cable
Oxygen dawb tooj liab cable

Oxygen-dawb tooj liab kuj siv hauv tshuab nqus tsev. Nws yog qhov tseem ceeb hauv kev tsim cov tshuab nqus tsev faib khoom thiab cov khoom siv hluav taws xob.

Nws yog siv dav hauv kev tsim cov khoom lag luam rau qhov chaw lag luam.

Ntawm lwm thaj chaw uas siv tooj liab tsis muaj oxygen yog: xov tooj cua electronics, microelectronics, xov tooj cua thiab instrumentation, nuclear zog, hniav nyiaj hniav kub thiab kev lag luam.

Cov Hlau thiab cov kav dej yog tsim los ntawm nws, tsim los ua haujlwm hauv cov khoom siv hluav taws xob muaj zog. Oxygen-dawb tooj liab yog lub hauv paus rau kev tsim khoom ntawm electrochemical anodes.

Copper Cathode Applications

Cov khoom siv niaj hnub siv cov khoom siv hluav taws xob ua los ntawm cov hlau tsis muaj oxygen yog cov khoom siv zoo heev. Qhov no ua rau nws muaj peev xwm ua tau cov kab hluav taws xob siab bandwidth nrog cov xaim me me hla ntu.

Txawm li cas los xij, nws tsim nyog sau cia tias tsis muaj oxygen-dawb tooj liab cables tsis tau siv dav. Thiab tag nrho vimcov hlau uas ua los ntawm cov hlau no kim heev. Txhawm rau kom ua tiav qhov xav tau, lawv siv tooj liab yooj yim nrog txoj kab uas hla loj, nyiam tsis siv nyiaj rau cov khoom siv tooj liab uas tsis muaj pa oxygen kim.

Cords rau cov khoom siv suab
Cords rau cov khoom siv suab

Tab sis kuj tseem muaj cov cheeb tsam uas muaj cov khoom siv hluav taws xob siab ua ke nrog cov xaim me me uas nyiam dua. Qhov no yog tsim nyog los xyuas kom meej, ntawm lwm yam, ib tug zoo nkauj tsos. Cov chaw no suav nrog kev tsim cov khoom siv suab paj nruag, lub mloog pob ntseg zoo, nrog rau cov uas koj xav tau kom tau txais cov khoom siv uas tsim cov suab nrov zoo tshaj plaws.

Thaum siv cov tooj liab zoo li no, nws qhov zoo hauv kev tiv thaiv sab hauv corrosion tau sau tseg. Vim yog cov cuab yeej no, cov hlau tsis muaj oxygen tsis muaj tooj liab tsis poob lawv cov yam ntxwv dhau sijhawm. Vim li no, cov cables uas muaj cov hlau no yog siv rau hauv ib puag ncig uas muaj cov av noo siab.

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