Dab tsi yog qhov ntom ntawm Copper Alloys

1. General Density Range ntawm Copper Alloys

Qhov ntom ntawm tooj liab alloys feem ntau yog los ntawm8.2 g / cm³ txog 9.5 g / cm³, uas yog qis dua cov tooj liab ntshiab (≈8.96 g / cm³) feem ntau (tshwj tsis yog siab -nickel cupronickel). Qhov kev hloov pauv no tshwm sim los ntawm qhov ntom ntom ntawm cov ntsiab lus alloying:

Cov ntsiab lus nrog qis qis dua tooj liab (piv txwv li, Zn: 7.14 g / cm³, Al: 2.70 g / cm³, Sn: 7.31 g / cm³) txo tag nrho cov alloy ntom thaum ntxiv.

Cov ntsiab lus uas muaj qhov ntom ntom dua li tooj liab (piv txwv li, Ni: 8.91 g / cm³, Fe: 7.87 g / cm³, Be: 1.85 g / cm³-ceeb toom: Muab ntxiv rau hauv cov lej, yog li nws qhov cuam tshuam tsis zoo) muaj qhov cuam tshuam tsawg lossis nce ntxiv ntawm qhov ntom ntom.

2. Qhov ntom ntom ntawm cov qib Copper Alloy Qib (Siv los ntawm Hom)

Txhawm rau ua kom yooj yim rau kev siv (xws li, ntsuas qhov hnyav rau kev tsim kho tshuab, kwv yees tus nqi hauv kev lag luam txawv teb chaws), qhov ceev ntawm cov qib kev lag luam raug teev tseg hauv qab no (cov ntaub ntawv raws li ASTM / ISO qauv, muaj feem xyuam rau lub xeev annealed):

Alloy Qeb	Cov Qib Siab	Chemical Composition (Key Elements)	Qhov ceev (g / cm³)	Tej kev siv
Brass (Cu-Zn)	C26000 Cartridge tooj dag	Cu: 68-70%, Zn: 30-32%	8.47	Valves, fittings, hluav taws xob connectors
	C36000 (Dawb-Txiav tooj dag)	Cu: 60-63%, Zn: 35-38%, Pb: 2-3%	8.50	Screws, ceev, precision machined qhov chaw
	C46400 (Naval tooj dag)	Cu: 60%, Zn: 39%, Sn: 1%	8.53	Marine hardware, kiv cua shafts
Bronze (Cu-Sn/Al/Be)	C51000 (Phosphor Bronze)	Cu: 94-96%, Sn: 4-6%, P: 0.1-0.3%	8.80	Springs, bearings, hluav taws xob tiv tauj
	C60800 (Aluminium Bronze)	Cu: 85-88%, Al: 10-12%, Fe: 2-3%	8.70	Valves, iav, marine corrosion-cov khoom tiv taus
	C17200 (Beryllium Bronze)	Cu: 97-98%, Be: 1.6-2.0%, Ni: 0.2-0.6%	8.73	Siab - lub zog springs, aerospace Cheebtsam
Cupronickel (Cu-Ni)	C70600 (90/10 Cupronickel)	Cu: 88-90%, Ni: 9-11%, Fe: 0.8-1.2%	8.94	Marine kav, cua sov exchangers
	C71500 (70/30 Cupronickel)	Cu: 68-72%, Ni: 28-32%, Fe: 0.4-1.0%	8.99	Nkoj hulls, khoom siv desalination
Tooj liab-Nickel-Zinc (Nickel Silver)	C75200 (18% Nickel Nyiaj)	Cu: 65%, Ni: 18%, Zn: 17%	8.64	Kho kom zoo nkauj qhov chaw, suab paj nruag
tooj liab-Chromium-Zirconium (Cu-Cr-Zr)	C18150 (Chromium tooj liab)	Cu: 98.8-99.4%, Cr: 0.5-1.0%, Zr: 0.1-0.2%	8.90	Vuam electrodes, siab -tam sim no busbars

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3. Qhov sib txawv ntawm qhov sib txawv ntawm cov qib sib txawv: Qhov tseem ceeb lossis tsis?

Qhov sib txawv ntom ntom ntawm cov qib tooj liab alloy yognruab nrab (tsawg dua los yog sib npaug rau 8% ntau qhov sib txawv)thiab tsis heev. Tshwj xeeb:

Nyob rau hauv tib hom alloy: Qhov ceev sib txawv me ntsis (tsawg dua lossis sib npaug li 2%). Piv txwv li:

Brass qib (C26000: 8.47 g / cm³; C36000: 8.50 g / cm³) sib txawv tsuas yog 0.35% vim muaj cov ntsiab lus Zn zoo sib xws.

Qib Cupronickel (C70600: 8.94 g / cm³; C71500: 8.99 g / cm³) muaj qhov sib txawv me ntsis vim Ni thiab Cu muaj qhov sib xws.

Thoob plaws ntau hom alloy: Qhov sib txawv ntom ntom yog pom tau ntau dua (2–8%). Piv txwv li:

Aluminium bronze (C60800: 8.70 g / cm³) yog 3.2% tsawg ntom dua beryllium bronze (C17200: 8.73 g / cm³) vim Al qhov qis dua.

Naval tooj dag (C46400: 8.53 g / cm³) yog 5.2% tsawg ntom dua 70/30 cupronickel (C71500: 8.99 g / cm³) vim muaj Zn cov ntsiab lus ntau dua hauv tooj dag.

Key Takeaway:

Qhov sib txawv ntom ntom ntawm cov qib tooj liab alloy yogtsis tseem ceeb txaus los ua drastic kev hloov pauv(piv txwv li, lub zog muaj zog, corrosion kuj). Txawm li cas los xij, lawv tseem ceeb heev rau:

Nyhav-sensitive applications(piv txwv li, aerospace Cheebtsam, automotive qhov chaw) qhov twg cov ntaub ntawv ceev ceev kom paub tseeb qhov hnyav.