Screen-printable or dispensable active brazing pastes and proces

Details Screen-printable or dispensable active brazing pastes and proces Screen-printable or dispensable active brazing pastes and proces

1999-08-30

2000-12-05

Wyszomierski, George

Metal treatment

Compositions

Fluxing

148 25, 22826251, B23K 35363

Patent

active

061561304

ABSTRACT:
These active brazing pastes satisfy the requirements for screen printing or dispensing particularly well and are well suited for brazing one aluminum oxide ceramic body to another one or to a metal body. This can be done by means of respective regions of brazing paste applied by screen printing to the ceramic bodies, with the coverage of one region matching the coverage of the other region or by inserting the metal body into a hole in the ceramic body and using a pad of brazing paste applied to the ceramic body and to the metal body by dispensing. The printable paste comprises as the active brazing material a hydrogenated powder of a Zr/Ni/Ti alloy or a Zr/Fe/Ti/Be alloy and as an organic vehicle poly(butyl-methyl methacrylate) or poly(n-decyl methacrylate) as the polymer and the camphor ketal of 2,2,4-trime-thylpentane-1,3-diol and/or 5-nonyl-methyl ether as the solvent for the polymer. The dispensable paste comprises as the active brazing material the same powder and as the organic vehicle a mixture of poly (butylmethyl methacrylate) dissolved in the camphor ketal of 2,2,4-trimethylpentane-1,3-diol as a first solvent, as a first component of the mixture and poly(butylmethacrylate) dissolved in 5-nonyl methyl ether, as a second solvent, as a second component of the mixture.

REFERENCES:
patent: 4924033 (1990-05-01), Iyogi et al.
patent: 5019187 (1991-05-01), Iyogi et al.
patent: 5095759 (1992-03-01), Mizuhara et al.
patent: 5334344 (1994-08-01), Hegner et al.
patent: 5431744 (1995-07-01), Breme et al.
patent: 5577655 (1996-11-01), Mizuhara
patent: 5690271 (1997-11-01), Dudel
patent: 5776620 (1998-07-01), Josso et al.
patent: 5851311 (1998-12-01), Diamant et al.

Affiliated with

Also associated with

Rating

Screen-printable or dispensable active brazing pastes and proces does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Screen-printable or dispensable active brazing pastes and proces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Screen-printable or dispensable active brazing pastes and proces will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-957617