Research background
Traditional copper phosphorus brazing filler metals, copper phosphorus silver brazing filler metals, Copper phosphorus tin brazing filler metals as they contains phosphorus elements, when welding with high temperature, phosphorus will easily volatilize which can easily cause welding pore, blister and so on undesirable effects. In order to settle the problem radically, Jinghang R&D department develop copper and rare earth solder. This solder is ideal substituted products of the traditional copper phosphorus brazing filler metals, copper phosphorus silver brazing filler metals as its good liquidity, ductility, high strength and low welding pore rate less than one over ten million, so it is ideal alternative products for traditional copper solder and silver solder.

Character
1. Low welding pore rate

Low welding pore rate less than one over ten million, Traditional copper phosphorus brazing filler metals, copper phosphorus silver brazing filler metals can not meet.

2. Reduce cost
This solder is quaternary alloy with copper and another rare earth, it is much cheaper than silver with better welding effect. It is ideal alternative products for traditional silver solder.

3 Low welding temperature
Brazing temperature between 630 ~720 degree

Parameter:
Type No: JH-003TH-A
Composition: Cu Hf rare earth and no Corrosive flux
Brazing temperature: 630~660 degree
Specification: Diameter of section φ 1.6mm φ 2mm
Shape: Rod, ring
Substitution 2% AG filler metal
Brazing way:
Manual Flame brazing
Auto flame brazing
High frequency brazing
Furnace brazing
Brazing filler metal is 1.2time as base metal.

Type No: JH-003TH-B
Composition: Cu Hf rare earth and no Corrosive flux
Brazing temperature: 630~660 degree
Specification: Diameter of section φ 1.6mm φ 2mm
Shape: Rod, ring
Substitution 5% AG filler metal
Brazing way:
Manual Flame brazing
Auto flame brazing
High frequency brazing
Furnace brazing
Brazing filler metal is 1.2time as base metal.