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*
Copper-Zinc series filler metals
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¡¡¡¡¡¡¡¡¡¡* Aluminum base series filler metals |
ONE: Operation Introduction  ¡¡¡¡The
copper - zinc alloy filler metals are mainly adopted in the oxyfuel
gas welding , high frequency welding , furnace welding , and used
to braze the copper , copper alloy , steel , cast iron and hard alloy
etc .Before brazing , you must clear away all dirt very well on the brazed place and on the surface of object to be brazed such as greasy dirt , oxide and so on . The best brazed joints space is between 0.025mm to 0.1mm .In order to get good braze , you need make up the right flux in the process of welding . The heat time should be shortest as possible and be avoided overheat so as not to the evaporation of zinc and the over -oxidation in the joint where will be formed the braze with many holes when these products are brazed in the oxyfuel gas welding . |
| TWO: Product Specification ¡¡¡¡The main specifications of the copper - zinc metals are these brazing rods whose diameters are 1.6mm , 2.0mm , 2.5mm and 3.0mm . At the same time ,we also produce brazing wires and brazing rings whose diameter are more than 1.0mm in accordance with the customers' demands . |
The basic data of Copper-Zinc series filler metals
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Brazing Alloys |
Chemical Composition(%)
|
Melting Range¡æ |
Working Temperature¡æ |
Trensile ¦Òb N/mm2 |
Equal to foreign alloy standards |
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Cu
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Mn
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Ni
|
other
|
Zn
|
All impurities |
Solidus |
Liquidus
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BCu
|
£¾99.9
|
/
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/
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/
|
Bal |
£¼0.1 |
1083
|
1083
|
1100~1150
|
 |
U.S.A BCu-1
|
|
BCu58ZnMn
|
57~59
|
3.7~4.3
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/
|
Fe0.15
|
880
|
909
|
935~960
|
|
|
||
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BCu60ZnMn-R
|
59~61
|
/
|
/ |
Sn0.8~1.2 |
890
|
905
|
900~960
|
343
|
|
||
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BCu62ZnNiMnSi-R
|
61~63
|
/
|
/ |
Sn0.1 |
921
|
935
|
880~900
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|
|
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BCu62Zn
|
50~52
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/
|
/ |
Sn0.6~1.8 |
860
|
910
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900~960
|
313
|
|
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BCuZnNi
|
56~58
|
minute |
9~11
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Si minute
|
480
|
500
|
930~982
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U.S.A RBCuZD
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||
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BCuZnNi
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|
minute
|
4.5~55 |
Si minute
|
525
|
555
|
910~960
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