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Vacuum Ultra Brazing of Defect-Free Metal Bonding Technology | MFTECH

What is ultra brazing?

Defect-free bonding technology as vacuum brazing using amorphous foil as a bonding zygote

Type Normal brazing Ultra brazing
Zygote Ag, Cu Ti, Ni, Zr
Type Binder and powder foil Foil
Form Crystalloid amorphous
Defect No cracks or pores No cracks
Pre-processing Metallizing No metallizing
Temperature of brazing High temperature Low temperature
Base material deformation Deformation little deformation
Bonding strength Low bonding strength High bonding strength
Compound Layer Formation Formation No Formation
ABraFo is the brand name of amorphous foil

Feature and Strengths

MFTECH Co., Ltd.'s ultra-brazing has the biggest strength of superior bonding strength.

Feature 01

The bonding strength is superior

Feature 02

Perfect bonding without pores

• No pores(Ultra brazing)

The space where the binder came out

• Pore generation(Brazing)

• Pore generation(Normal brazing)

Feature 03

Excellent wettability

Feature 04

Excellent diffusivity

It can be seen that the aluminum of Al2O3 is diffused into titanium due to its high diffusion force.

  • Ultra brazing cross-sectional drawing of ceramic and titanium
  • Measured
    Spot
    Al Ti Ni Cu Zr
    A 3.4 76.6 5.1 7.4 7.6
    B 2.8 96.5 0.5 0.1 0.02
    C 1.0 98.8 0 0.04 0.07
    D 1.4 96.7 0.8 0.8 0.3
    D1 2.1 87.9 6.2 3.2 0.6
    Composition table for each part (wt.%)
Feature 05

Low erosion

• Low erosion(Ultra brazing)

Perfect bonding
VS

• Serious erosion(Normal brazing))

Unstable bonding

Application field

Bonding between different metals

Ceramic and intermetallic bonding