Voice coil glue ?

uhh...

1893262.jpg


and second note, if you need to ask, i would back away from that idea

 
uhh...
1893262.jpg


and second note, if you need to ask, i would back away from that idea
HAHAHA!! x2.

In all seriousness, you may be able to e-mail one of the many manufacturers like incriminator, DC, Audioque, or someone to see what they use. It may not help much, but it's worth a shot. Seriously though, if you have never built your own sub or had previously tutelage from someone with a great deal of experience, I just don't know that I would start slapping miscellaneous parts together.

 
HAHAHA!! x2.
In all seriousness, you may be able to e-mail one of the many manufacturers like incriminator, DC, Audioque, or someone to see what they use. It may not help much, but it's worth a shot. Seriously though, if you have never built your own sub or had previously tutelage from someone with a great deal of experience, I just don't know that I would start slapping miscellaneous parts together.
I would be buying the exact same parts the factory is using to build their sub's. I just heard not to trust the glue in china. So I would be building the factorys O.E.M sub but with my type of glue.

 
The problem isn't the glues used for assembly. It is the process of winding the VC's over there. A typical chinese coil has glue brushed onto the former or the wire and then the coil is wound into the glue. As the glue dries it becomes hard and the VC is done. This glue typically has a failure point where the coil will unwind around 375F or so. Very low for a woofer. A good coil uses a different method where it is dipped, much like the windings on an electric motor, and then baked at 600F for a period of time to cure the glue. Quite simply if you get the parts from china you're going to have a low temperature coil no matter what you use to assemble it.

Also be advised that if you're buying low quantity, low meaning under $500,000 a year or so, you will have no say in what you get. They will simply give you the left over junk. They do not hold tolerances well on steel parts. They use Y30 instead of Y35 magnets so you lose 10% BL. Spider stiffnesses will vary by as much as 200% between units. DCR on coils can vary by 25% or more. The list goes on and on. If you are thinking to do it as a learning experience, by all means go ahead but don't expect to have much useful out of it.

John

 
The problem isn't the glues used for assembly. It is the process of winding the VC's over there. A typical chinese coil has glue brushed onto the former or the wire and then the coil is wound into the glue. As the glue dries it becomes hard and the VC is done. This glue typically has a failure point where the coil will unwind around 375F or so. Very low for a woofer. A good coil uses a different method where it is dipped, much like the windings on an electric motor, and then baked at 600F for a period of time to cure the glue. Quite simply if you get the parts from china you're going to have a low temperature coil no matter what you use to assemble it.
careful John, don't want to piss off various manufacturers whom read these fourms //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 
The problem isn't the glues used for assembly. It is the process of winding the VC's over there. A typical chinese coil has glue brushed onto the former or the wire and then the coil is wound into the glue. As the glue dries it becomes hard and the VC is done. This glue typically has a failure point where the coil will unwind around 375F or so. Very low for a woofer. A good coil uses a different method where it is dipped, much like the windings on an electric motor, and then baked at 600F for a period of time to cure the glue. Quite simply if you get the parts from china you're going to have a low temperature coil no matter what you use to assemble it.
Also be advised that if you're buying low quantity, low meaning under $500,000 a year or so, you will have no say in what you get. They will simply give you the left over junk. They do not hold tolerances well on steel parts. They use Y30 instead of Y35 magnets so you lose 10% BL. Spider stiffnesses will vary by as much as 200% between units. DCR on coils can vary by 25% or more. The list goes on and on. If you are thinking to do it as a learning experience, by all means go ahead but don't expect to have much useful out of it.

John
Ok I'm going to ask the factory what method they use when winding the voice coils. I asked about the glue they use and they told me they use imported glue from the United States. It's a U.S/Chinese owned factory.

 
The problem isn't the glues used for assembly. It is the process of winding the VC's over there. A typical chinese coil has glue brushed onto the former or the wire and then the coil is wound into the glue. As the glue dries it becomes hard and the VC is done. This glue typically has a failure point where the coil will unwind around 375F or so. Very low for a woofer. A good coil uses a different method where it is dipped, much like the windings on an electric motor, and then baked at 600F for a period of time to cure the glue. Quite simply if you get the parts from china you're going to have a low temperature coil no matter what you use to assemble it.
Also be advised that if you're buying low quantity, low meaning under $500,000 a year or so, you will have no say in what you get. They will simply give you the left over junk. They do not hold tolerances well on steel parts. They use Y30 instead of Y35 magnets so you lose 10% BL. Spider stiffnesses will vary by as much as 200% between units. DCR on coils can vary by 25% or more. The list goes on and on. If you are thinking to do it as a learning experience, by all means go ahead but don't expect to have much useful out of it.

John

That could not be more true. Unless you have prior connections with people over there who you know personally, I wouldn't trust the product. Usually the tolerances are too large and the glue job definitely not up to par.

 
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