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紫銅帶
紫銅帶又名紅銅帶就是銅單質,因其顏色為紫紅色而得名。各種性質見銅。紫銅帶是工業(yè)純銅,其熔點為1083℃,無同素異構轉變,相對密度為8.9,為鎂的五倍。同體積的質量比普通鋼重約15%。
紫銅因其具有玫瑰紅色,表面形成氧化膜后呈紫色,故一般稱為紫銅。它是含有一定氧的銅,因而又稱含氧銅。

紫銅帶的性能:

一、普通性能
紫銅帶是比較純凈的一種銅,一般可近似認為是純銅,導電性、塑性都較好,但強度、硬度較差一些。紫銅具有優(yōu)良的導熱性﹑延展性和耐蝕性。紫銅中的微量雜質對銅的導電、導熱性能有嚴重影響。其中鈦、磷、鐵、硅等顯著降低電導率,而鎘、鋅等則影響很小。硫、硒、碲等在銅中的固溶度很小,可與銅生成脆性化合物,對導電性影響不大,但能降低加工塑性。
紫銅在大氣、海水和某些非氧化性酸(鹽酸、稀硫酸)、堿、鹽溶液及多種有機酸(醋酸、檸檬酸)中,有良好的耐蝕性,用于化學工業(yè)。另外,紫銅有良好的焊接性,可經冷、熱塑性加工制成各種半成品和成品。20世紀70年代,紫銅的產量超過了其他各類銅合金的總產量。
二、物理性能
紫銅帶中的微量雜質對銅的導電、導熱性能有嚴重影響。其中鈦、磷、鐵、硅等顯著降低電導率,而鎘、鋅等則影響很小。氧、硫、硒、碲等在銅中的固溶度很小,可與銅生成脆性化合物,對導電性影響不大,但能降低加工塑性。普通紫銅在含氫或一氧化碳的還原性氣氛中加熱時,氫或一氧化碳易與晶界的氧化亞銅(Cu2O)作用,產生高壓水蒸氣或二氧化碳氣體,可使銅破裂。這種現(xiàn)象常稱為銅的“氫病”。氧對銅的焊接性有害。鉍或鉛與銅生成低熔點共晶,使銅產生熱脆;而脆性的鉍呈薄膜狀分布在晶界時,又使銅產生冷脆。磷能顯著降低銅的導電性,但可提高銅液的流動性,改善焊接性。適量的鉛、碲、硫等能改善可切削性。紫銅退火板材的室溫抗拉強度為22~25公斤力/毫米2,伸長率為45~50%,布氏硬度(HB)為35~45。純銅 導熱系數(shù)為386.4w/(m.k).

深圳市永泰安金屬材料有限公司是華南地區(qū)規(guī)模較大的進口碲銅、碲銅棒、黃銅棒、紫銅帶、紫銅排、異形銅材原材料優(yōu)質供應商廠家,在廣東,深圳,東莞,惠州,廣州,江蘇等地區(qū)火熱銷售中。

牌號(中國)

牌號(日本)

牌號(美國)

+

Cu+Ag

P

Bi

Sb

As

Fe

Ni

Pb

Sn

S

Zn

一號銅T1

 

C1020

C10200

99.95

0.001

0.001

0.002

0.002

0.005

0.005

0.005

0.002

0.005

0.005

二號銅T2

C1100

C10200

99.9

-

0.001

0.002

0.002

0.005

0.005

0.005

0.002

0.005

0.005

三號銅T3

C1221

-

99.7

-

0.002

0.005

0.01

0.05

0.2

0.01

0.05

0.01

-

零號無氧銅TU0

C1011

C110

99.99

0.0003

0.0001

0.0004

0.0005

0.001

0.001

0.0005

0.0002

0.0015

0.0001

一號無氧銅TU1

C1020

C10200

99.97

0.002

0.001

0.002

0.002

0.004

0.002

0.003

0.002

0.004

0.003

二號無氧銅TU2

C1020

C10200

99.95

0.002

0.001

0.002

0.002

0.004

0.002

0.004

0.002

0

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深圳市永泰安金屬材料有限公司|紫銅帶廠家,紫銅棒廠家,黃銅棒廠家,紫銅廠家,鋁板廠家,鋁棒廠家  粵ICP備17052748號
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