Cov ntsiab lus ntawm cov pa oxygen tsis muaj tooj liab rods thiab tswj cov extrusion tailing defects
1. Oxygen-free copper 1. Overview No. 1 and No. 2 Oxygen-free copper plates TU1 thiab TU2 yog tooj liab uas muaj oxygen tsawg heev. Lawv muaj cov yam ntxwv ntawm purity siab, siab hluav taws xob conductivity thiab thermal conductivity, thiab tsis muaj "hydrogen kab mob" los yog tsawg heev "hydrogen kab mob". Oxygen-dawb tooj liab uas tsis tshua muaj phosphorus cov ntsiab lus muaj cov khoom zoo sealing nrog iav, kev ua haujlwm zoo, weldability, corrosion kuj thiab txias tsis kam. busbars, conductive strips, waveguides, coaxial cables, nqus cov ntsaws ruaj ruaj, lub tshuab nqus tsev twj, transistor Cheebtsam, thiab lwm yam }.{{20}}3 TU2: Cov ntsiab lus tooj liab: 99.97 lossis ntau dua, tag nrho impurity Tsawg dua lossis sib npaug rau 0.05 ① Oxygen-free copper thermal performance melting point 1082.5 ~ 1083 degree . Thermal conductivity : 391W / (m· degree ) ntawm 20 degree . Tshwj xeeb kub muaj peev xwm : 385J / (kg· degree ) ntawm 20 degree . tus nqi ntawm oxygen-dawb tooj liab thaum solidification yog 4.92%, thiab qhov ceev yog 8.94g / cm³. , thiab ntsuas tom qab 30 feeb. Lub resistivity yog ρ=0.0171μΩ·m ntawm 20 degree . ④ Cov khoom sib nqus ntawm cov pa oxygen tsis muaj tooj liab: Oxygen-dawb tooj liab yog diamagnetic, nrog rau qhov sib nqus sib nqus ntawm -0.085 ×10-6m3 / kg ntawm chav tsev kub. ⑤ Cov khoom siv tshuaj lom neeg ntawm cov pa oxygen tsis muaj tooj liab Anti-oxidation zog: oxidation tus nqi ntawm tooj liab nce ntau ntawm qhov kub thiab txias, thiab nws oxidizes qeeb hauv huab cua thiab hauv chav tsev kub. Corrosion kuj: Oxygen-dawb tooj liab yog resistant rau corrosion nyob rau hauv cov huab cua, cov dej ntshiab ntshiab, thiab dej hiav txwv uas tsis tshua muaj nqi. Nws kuj muaj kev tiv thaiv zoo rau cov tsis-oxidizing acids, tab sis nws yog resistant rau oxidizing acids, ntub ammonia, ntub halogens, sulfides, thiab cov tshuaj uas muaj ammonium ions muaj corrosion kuj tsawg heev. ⒊ Oxygen-free tooj liab thermal processing specifications Oxygen-free copper thermal processing and heat treatment specifications are: annealing temperature: 375 ~ 650 degree . Kub ua haujlwm kub: 750 ~ 875 degree. ⒋ Cov khoom siv hluav taws xob tsis muaj pa oxygen ⑴ Mechanics tau teev nyob rau hauv cov qauv tsis muaj oxygen tsis muaj tooj liab kev ua tau zoo Raws li cov kev cai ntawm GU/T14953-1994, cov hlau pas nrig rov qab khoov kev ua tau zoo tus qauv yog: ib tug hlau pas nrig nrog ib txoj kab uas hla ntawm tsis tsawg tshaj li 0.3 hli yog raug rau rov kho dua kev ntsuam xyuas tom qab hydrogen annealing, thiab tus naj npawb ntawm bending xeem tsis tsawg tshaj li 10 zaug. ⑵ Cov khoom siv hluav taws xob tsis muaj pa oxygen ntawm chav sov thiab ntau qhov kub ① Hardness: Chav kub hardness: HBS35 ~ 45 (M xeev), HBS85 ~ 95 (Y xeev). ②Tensile zog: Cov khoom tensile ntawm TU2 tooj liab phaj ntawm chav tsev kub yog: σb=350 ~ 390MPa, δ=3% ~ 5% (Y xeev) σb=220 ~ 235MPa, δ{{ 81}}% ~ 55% (M xeev) ③Impact zog: Impact toughness: KU=1560-1760kJ/㎡④Torsion thiab shear zog: shear zog: τ=210MPa (Y xeev): τ{{85 }}MPa (M xeev) ⑤ qaug zog: Lub voj voog siab qaug zog txwv yog: TU2 phaj, txias deformation 50%. Tus lej ntawm lub voj voog yog 108 cycles, σD=119MPa. ⑥Elastic zog: Elastic modulus: E=117.2Gpa. Shear modulus: G=44.1GP Tam sim no, nrog rau kev loj hlob ntawm high-tech teb xws li lub tshuab nqus tsev twj, hluav taws xob, thiab microelectronics nyob rau hauv kuv lub teb chaws, kev ua lag luam thov rau oxygen-dawb tooj liab yog nce, thiab cov yuav tsum tau rau cov ntaub ntawv kuj nce. Qhov siab dua. Yuav ua li cas thiaj li ua tau zoo oxygen-dawb tooj liab (TU0, TU1) kom tau raws li kev xav tau ntawm kev lag luam yog ib qho teeb meem loj uas cov tuam txhab ua tooj liab tau ntsib. 2. Cov ntsiab lus tseem ceeb cuam tshuam rau qhov zoo ntawm cov pa oxygen tsis muaj tooj liab 1. Cov ntsiab lus tseem ceeb ① Zoo ntawm cov khoom siv raw ② Kev cuam tshuam ntawm cov pa ③ Kev tsim cov hlau tsis muaj pa oxygen hauv cov khoom siv smelting ua raws li cov txheej txheem ntawm "cov ntaub ntawv tseem ceeb, sealing, thiab refining. "thiab nruj me ntsis tswj qhov zoo ntawm cov khoom nyoos thiab cov khoom pabcuam. , nruj txheej txheem txheej txheem thiab cov txheej txheem kev khiav hauj lwm, thiab siv txoj kev tshawb nrhiav kom tau zoo los txhim kho qhov zoo ntawm cov pa oxygen tsis muaj tooj liab yog tam sim no muaj peev xwm thiab tswj tau zoo hauv kev tsim cov pa oxygen dawb tooj liab. 2. Cov yam ntxwv cuam tshuam rau cov ntsiab lus ntawm cov pa oxygen tsis muaj tooj liab thiab nws cov kev tswj. Cov ntsiab lus Oxygen yog ib qho tseem ceeb ntawm cov khoom siv tooj liab tsis muaj oxygen. Muaj ntau yam uas cuam tshuam rau cov ntsiab lus ntawm cov pa oxygen uas tsis muaj tooj liab. Cov hauv qab no yog cov tseem ceeb cuam tshuam thiab tswj kev ntsuas: (1) ) Muaj qhov sib txawv loj ntawm cov pa oxygen ntawm cov khoom siv raw cathode (yam tsawg kawg 3ppm, siab tshaj 90ppm). Kev tsim cov khoom lag luam zoo (TU0, LC1011, TU1) oxygen-dawb tooj liab muaj qhov xav tau siab ntawm cov khoom siv raw cathode tooj liab, thiab high-purity cathode tooj liab feem ntau yuav tsum tau siv. (2) Melt npog thiab tiv thaiv 2.1 Melt npog charcoal yog qhov zoo tshaj plaws npog tus neeg sawv cev rau oxygen-dawb tooj liab smelting. Charcoal npog lub ntsej muag ntawm cov yaj, uas tsis tsuas yog tiv thaiv cov pa oxygen thiab nqus pa, tab sis kuj muaj cov nyhuv deoxidation zoo. Cov tshuaj tiv thaiv deoxidation ntawm charcoal yog: Cu2O + C=2Cu + COCu2O + CO =2Cu + CO2 Qhov zoo ntawm charcoal muaj kev cuam tshuam zoo rau cov nyhuv deoxidation ntawm cov yaj. Ntau hom charcoal tau txheeb xyuas thiab cov txiaj ntsig tau pom nyob rau hauv Table 2. Cov pa roj carbon dawb uas kub hnyiab tau los ntawm cov ntoo qhib thiab lwm cov ntoo yuav tsum tau siv los ua cov deoxidizer rau cov pa oxygen dawb. Tsis tas li ntawd, charcoal yuav tsum tau calcined (500 degree ~ 800 degree) thiab yuav tsum tsis txhob tso rau ntev. Nws yuav tsum tau siv tam sim ntawd tom qab ci. 2.2 Kev tiv thaiv roj: Inert roj (nitrogen) tau nkag mus rau hauv lub qhov cub smelting thiab tuav lub cub tawg (nitrogen yuav tsum tau nkag mus rau hauv lub taub hau ntawm lub cub tawg) kom cais cov huab cua, tiv thaiv cov pa oxygen thiab pa nqus pa, thiab txo cov pa taws; Thaum lub sij hawm hloov cov txheej txheem ntawm molten tooj liab, lub melt flow rate nyob rau hauv lub launder yog ceev thiab fluctuates heev. Cov kua saum npoo yog yooj yim raug thaum siv cov khoom siv npog. Inert gas (nitrogen) los yog thee roj yuav tsum tau siv los tiv thaiv. (3) Kev sib khi Tam sim no, muaj qee qhov sib txawv ntawm cov khoom siv tooj liab tsis muaj pa oxygen hauv tsev thiab txawv teb chaws. Qhov tseem ceeb yog nyob rau hauv sealing technology. Piv txwv li, ntau dua 99% ntawm C10200 oxygen-dawb tooj liab ingots tsim los ntawm cov khoom siv hluav taws xob tsis muaj pa oxygen tsis muaj tooj liab (cov kaw zoo, siv cov hluav taws xob tsis muaj calcined nkaus xwb) muaj cov pa oxygen qis dua 10 ppm, thaum cov khoom tsim los ntawm lwm cov khoom siv hauv tsev. (siv calcined charcoal) Cov ntsiab lus oxygen ntawm C10200 oxygen-dawb tooj liab ingot yog tsawg dua 90% qis dua 10ppm. Qhov no qhia tau hais tias qhov tseem ceeb npaum li cas ntawm cov khoom siv sealing yog los tswj cov ntsiab lus ntawm cov pa oxygen tsis muaj tooj liab ingots. (4) Refining thiab deoxidation Feem ntau hais lus, txawm rau high-purity cathode tooj liab, cov ntsiab lus ntawm cov pa oxygen feem ntau yog siab tshaj 10ppm. Txhawm rau ua kom tau raws li qhov xav tau ntawm qee cov neeg siv khoom rau cov pa oxygen tsis muaj tooj liab nrog cov ntsiab lus oxygen qis dua 5ppm, kev kho kom zoo thiab deoxidation yuav tsum tau ua. Ntxiv nrog rau kev siv cov hluav taws kub zoo calcined rau kev kho deoxidation, qhov tsim nyog ntawm Cu-P alloy yog ntxiv rau deoxidation los xyuas kom meej cov ntsiab lus ntawm cov pa oxygen tsis muaj tooj liab. Tsis tas li ntawd, txhawm rau txhawm rau ua tiav cov txiaj ntsig deoxidation ntxiv, lub tshuab hluav taws xob tsis muaj oxygen tsis muaj tooj liab yaj deoxygenation tau tsim nyob rau xyoo tas los no-qhia cov pa roj carbon monoxide thiab nitrogen rau hauv lub qhov cub los ntawm cov cib ua pa, siv cov kev txo qis ntawm carbon monoxide kom ua tiav qhov kev tshem tawm. ntawm cov pa oxygen hauv cov kua tooj liab. tshem tawm lub hom phiaj. (5) Ingot cua sov Yuav kom ua tau raws li cov neeg siv khoom xav tau rau cov ntsiab lus ntawm cov pa oxygen tsis muaj tooj liab, qhov chaw ntawm cov pa oxygen tsis muaj tooj liab ingot yuav tsum tau tiv thaiv los ntawm oxygen infiltration thaum lub sij hawm ua tom ntej. Thaum lub sij hawm cua sov txheej txheem ntawm oxygen-dawb tooj liab ingots, lub cua sov kub thiab cua sov lub sij hawm yuav tsum tau tswj. 2.2 Kev tiv thaiv roj: Inert roj (nitrogen) tau nkag mus rau hauv lub qhov cub smelting thiab tuav lub cub tawg (nitrogen yuav tsum tau nkag mus rau hauv lub taub hau ntawm lub cub tawg) kom cais cov huab cua, tiv thaiv cov pa oxygen thiab pa nqus pa, thiab txo cov pa taws; Thaum lub sij hawm hloov cov txheej txheem ntawm molten tooj liab, lub melt flow rate nyob rau hauv lub launder yog ceev thiab fluctuates heev. Cov kua saum npoo yog yooj yim raug thaum siv cov khoom siv npog. Inert gas (nitrogen) los yog thee roj yuav tsum tau siv los tiv thaiv. (3) Kev sib khi Tam sim no, muaj qee qhov sib txawv ntawm cov khoom siv tooj liab tsis muaj pa oxygen hauv tsev thiab txawv teb chaws. Qhov tseem ceeb yog nyob rau hauv sealing tshuab. Piv txwv li, ntau dua 99% ntawm C10200 oxygen-dawb tooj liab ingots tsim los ntawm cov khoom siv hluav taws xob tsis muaj pa oxygen tsis muaj tooj liab (cov kaw zoo, siv cov hluav taws xob tsis muaj calcined nkaus xwb) muaj cov pa oxygen qis dua 10 ppm, thaum cov khoom tsim los ntawm lwm cov khoom siv hauv tsev. (siv calcined charcoal) Cov ntsiab lus oxygen ntawm C10200 oxygen-dawb tooj liab ingot yog tsawg dua 90% qis dua 10ppm. Qhov no qhia tau hais tias qhov tseem ceeb npaum li cas ntawm cov khoom siv sealing yog los tswj cov ntsiab lus ntawm cov pa oxygen tsis muaj tooj liab ingots. (4) Refining thiab deoxidation Feem ntau hais lus, txawm rau high-purity cathode tooj liab, cov ntsiab lus ntawm cov pa oxygen feem ntau yog siab tshaj 10ppm. Txhawm rau ua kom tau raws li qhov xav tau ntawm qee cov neeg siv khoom rau cov pa oxygen tsis muaj tooj liab nrog cov ntsiab lus oxygen qis dua 5ppm, kev kho kom zoo thiab deoxidation yuav tsum tau ua. Ntxiv nrog rau kev siv cov hluav taws kub zoo calcined rau kev kho deoxidation, qhov tsim nyog ntawm Cu-P alloy yog ntxiv rau deoxidation los xyuas kom meej cov ntsiab lus ntawm cov pa oxygen tsis muaj tooj liab. Tsis tas li ntawd, txhawm rau txhawm rau ua tiav cov txiaj ntsig deoxidation ntxiv, lub tshuab hluav taws xob tsis muaj oxygen tsis muaj tooj liab yaj deoxygenation tau tsim nyob rau xyoo tas los no-qhia cov pa roj carbon monoxide thiab nitrogen rau hauv lub qhov cub los ntawm cov cib ua pa, siv cov kev txo qis ntawm carbon monoxide kom ua tiav qhov kev tshem tawm. ntawm cov pa oxygen hauv cov kua tooj liab. tshem tawm lub hom phiaj. (5) Ingot cua sov Yuav kom ua tau raws li cov neeg siv khoom xav tau rau cov ntsiab lus ntawm cov pa oxygen tsis muaj tooj liab, qhov chaw ntawm cov pa oxygen tsis muaj tooj liab ingot yuav tsum tau tiv thaiv los ntawm oxygen infiltration thaum lub sij hawm ua tom ntej. Thaum lub sij hawm cua sov txheej txheem ntawm oxygen-dawb tooj liab ingots, lub cua sov kub thiab cua sov lub sij hawm yuav tsum tau tswj.
