Thermal Bonding epoxy construction
#1
keepitoiled
Thread Starter
Join Date: Jan 2006
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Thermal Bonding epoxy construction
I was wondering if the Thermal bonding epoxy Method used by Raleigh USA is being done anymore.
I Understand it was a reliable technology.
I Understand it was a reliable technology.
#3
keepitoiled
Thread Starter
Join Date: Jan 2006
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Correct, lugged frames of aluminum and steel thermally " glued " together. From what I understand from past recollection is that it is an Epoxy based thermal set.
I purchased a Raleigh Technium in 87, assembled with this technology. and it was explained to me by the LBS owner.
I have used Structural adhesives to bond Electric Motor frames and the technology has advanced and become common in industrial and commercial applications.
LOCTITE is a major mfg of industrial adhesives.
I purchased a Raleigh Technium in 87, assembled with this technology. and it was explained to me by the LBS owner.
I have used Structural adhesives to bond Electric Motor frames and the technology has advanced and become common in industrial and commercial applications.
LOCTITE is a major mfg of industrial adhesives.
#4
Senior Member
Join Date: Aug 2005
Location: Austin
Posts: 2,104
Bikes: Too many to count
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
The problem with epoxy bonding is that nobody does it anymore. It's just not a popular choice. Back in the semi-old days of gluing carbon and even aluminum frames, bonding the tubes to thick aluminum lugs was the radical shiznitt for alternative builders. But, now carbon builders are doing it more monocque style.... oh wait a minute. I take that back. You can buy Deda or Columbus carbon tubes & lugs and glue them up yourself. Though, not sure about the thermal part. I don't think the new glues of today require you to heat them up.
#5
Senior Member
Join Date: Sep 2002
Location: Kansas City
Posts: 90
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
It seems to me that the epoxies used in golf club shafting should suffice just fine for tube and lug bike construction, anybody tried it? What am I missing..........
#7
Senior Member
Join Date: Jun 2003
Posts: 18,138
Bikes: 2 many
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 1266 Post(s)
Liked 323 Times
in
169 Posts
Originally Posted by clancy
Correct, lugged frames of aluminum and steel thermally " glued " together. From what I understand from past recollection is that it is an Epoxy based thermal set.
I purchased a Raleigh Technium in 87, assembled with this technology. and it was explained to me by the LBS owner.
I have used Structural adhesives to bond Electric Motor frames and the technology has advanced and become common in industrial and commercial applications.
LOCTITE is a major mfg of industrial adhesives.
I purchased a Raleigh Technium in 87, assembled with this technology. and it was explained to me by the LBS owner.
I have used Structural adhesives to bond Electric Motor frames and the technology has advanced and become common in industrial and commercial applications.
LOCTITE is a major mfg of industrial adhesives.
#8
Banned
Join Date: Aug 2005
Posts: 5,115
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 2 Times
in
1 Post
If you do this you definetly want to post cure with heat, but it doesn' thave to be too high, and sometimes can be reached in places like attics or the back of your car. The heat can be applied after the initial set-up, even weeks after, and the effect is the same.
Could be useful for bamboo.
Could be useful for bamboo.
#9
Industry Maven
Join Date: Oct 2003
Location: Wherever good bikes are sold
Posts: 2,936
Bikes: Thylacines...only Thylacines.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Every carbon bike on the planet is bonded. Some epoxies cure at room temperature, some require heat.
What was the question again?
What was the question again?
#10
keepitoiled
Thread Starter
Join Date: Jan 2006
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Golf Clubs, good example, Mine always break at the shaft but never come off.
It seems that bonding may be a cost effective alternative. dependant on the cost of the adhesive vs traditional brazing supplies and equipment.
It may also allow more casual builders to construct without investments in equipment and the skill required to braze.
Concerns about weakening the tubing due to overheating may also be a benifit.
I will ask some engineering folks I know about this as I have time.
It seems that bonding may be a cost effective alternative. dependant on the cost of the adhesive vs traditional brazing supplies and equipment.
It may also allow more casual builders to construct without investments in equipment and the skill required to braze.
Concerns about weakening the tubing due to overheating may also be a benifit.
I will ask some engineering folks I know about this as I have time.
#11
Senior Member
Join Date: Sep 2002
Location: Kansas City
Posts: 90
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
If this is a viable method, then I'm definately in. I use Dynacraft products for club making and an epoxy supply will last a long time and requires a very small amount.
https://www.dynacraftgolf.com/Dynacra...alog/10/EPOXY/
https://www.dynacraftgolf.com/Dynacra...alog/10/EPOXY/