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Phos/copper and silver/phos/copper brazing alloys



Phosphor-Copper brazing alloy is easy-flow, low-cost and has good processing property and self-braze ability. It applies to contact brazing、gas flame brazing, induction brazing and furnace brazing, the joint has high tensile strength and good electrical conductivity. Silver-Phosphor-Copper brazing alloy can reduce the melting points, in can improve both alloy's plasticity and wet ability, as well as the alloy's strength and toughness.

中國(guó)標(biāo)準(zhǔn)牌號(hào)
Chinese Standard
相當(dāng)牌號(hào)
Equivalent Grade
化學(xué)成分(Wt%)
Composition
熔化溫度范圍(℃)
Melting Range
主要特性及用途
Characteristics and Application
產(chǎn)品樣本牌號(hào) AWS A5.8 Ag P Cu Sn Ni 固相線
Solidus
液相線
Liquidus
B-Cu92P ___ ___ ___ 7.5

8.5
余     rem. ___ ___ 714 750 熔點(diǎn)低,流動(dòng)性較好,但脆性大,一般用于釬焊不受沖擊載荷、無(wú)振動(dòng)的銅和黃銅零件。
B-Cu93P 料201 BCuP-2 ___ 6.8

7.5
余     rem. ___ ___ 714 793 流動(dòng)性好,可以流入間隙很小的接頭,釬料脆,用于機(jī)電和儀表工業(yè),釬焊不受沖擊載荷的銅和黃銅零件 。
B-Cu89SnP 料208 ___ ___ 5.5

7.5
余     rem. 5.0

6.0
___ 620 660 熔點(diǎn)低,流動(dòng)性好,配合銀釬劑釬焊銅、青銅及低鋅黃銅
B-Cu86SnP ___ ___ ___ 4.8

5.8
余     rem. 7.0

8.0
0.4

1.2
620 670 用途同上,鎳的加入使脆性增大,但流動(dòng)性提高,釬縫光亮。
B-Cu91PAg 料209 BCuP-6 1.8

2.2
6.8

7.2
余     rem. ___ ___ 645 788 能在較大溫度范圍內(nèi)填充接頭間隙,用于電冰箱、空調(diào)器、電機(jī)和儀表行業(yè)釬焊銅及黃銅。
B-Cu89PAg ___ BCuP-3 4.8

5.2
5.8

6.7
余     rem. ___ ___ 645 780 用途同上,釬料延性和導(dǎo)電性得到提高,流動(dòng)性一般,適宜于釬焊間隙較大的零件。
B-Cu88PAg 料205 BCuP-7 4.8

5.2
6.5

7.0
余     rem. ___ ___ 645 771 用途同上,釬料延性和導(dǎo)電性得到提高,流動(dòng)性好于B-Cu89PAg。
B-Cu87PAg ___ BCuP-4 5.8

6.2
7.0

7.5
余     rem. ___ ___ 645 718 熔點(diǎn)低,流動(dòng)性很好,能釬焊間隙較小的接頭,用于銅及黃銅釬焊。
B-Cu80AgP 料204 BCuP-5 14.5

15.5
4.8

5.3
余     rem. ___ ___ 645 815 釬料的延性和導(dǎo)電性得到進(jìn)一步的改善,用于釬焊要求比HL205釬料高的接頭間隙較大的銅及黃銅零件。
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