Anybody know what kind of metal the dpf is made of? Just wondering how long it is made to last?

GM says over 100k. We will have to see as they do cost a lot of $.

Anybody know what kind of metal the dpf is made of? Just wondering how long it is made to last?

Crap:D but like goodwrwnchtech said they are suppose to last 100k miles:rolleyes:

What one kind is made of cordierite

The most common filter is made of cordierite (http://en.wikipedia.org/wiki/Cordierite) (a ceramic material that is also used as catalytic converter supports (cores)). Cordierite filters provide excellent filtration efficiency, are (relatively) inexpensive, and have thermal properties that make packaging them for installation in the vehicle simple. The major drawback is that cordierite has a relatively low melting point (http://en.wikipedia.org/wiki/Melting_point) (about 1200 °C (http://en.wikipedia.org/wiki/%C2%B0C)) and cordierite substrates have been known to melt down during filter regeneration. This is mostly an issue if the filter has become loaded more heavily than usual, and is more of an issue with passive systems than with active systems, unless there is a system break down.
Cordierite filter cores look like catalytic converter cores that have had alternate channels plugged - the plugs force the exhaust gas flow through the wall and the particulate collects on the inlet face.


And another silicon carbide

The second most popular filter material is silicon carbide (http://en.wikipedia.org/wiki/Silicon_carbide), or SiC (http://en.wikipedia.org/wiki/SiC). It has a higher (2700 °C) melting point than cordierite, however it is not as stable thermally, making packaging an issue. Small SiC cores are made of single pieces, while larger cores are made in segments, which are separated by a special cement so that heat expansion of the core will be taken up by the cement, and not the package. SiC cores are usually more expensive than cordierite cores, however they are manufactured in similar sizes, and one can often be used to replace the other.
Silicon carbide filter cores also look like catalytic converter cores that have had alternate channels plugged - again the plugs force the exhaust gas flow through the wall and the particulate collects on the inlet face.

And another the metal fibers kind

Some cores are made from metal fibers - generally the fibers are "woven" into a monolith. Such cores have the advantage that an electrical current can be passed through the monolith to heat the core for regeneration purposes. Metal fiber cores tend to be more expensive than cordierite or silicon carbide cores, and generally not interchangeable with them.

and the paper kind:wtf:

Disposable paper cores are used in certain specialty applications, without a regeneration strategy. Coal mines (http://en.wikipedia.org/wiki/Coal_mine) are common users — the exhaust gas is usually first passed through a water trap to cool it, and then through the filter. Paper filters are also used when a diesel machine must be used indoors for short periods of time, such as on a forklift being used to install equipment inside of a store.

Crap:D but like goodwrwnchtech said they are suppose to last 100k miles:rolleyes:

What one kind is made of cordierite

The most common filter is made of cordierite (http://en.wikipedia.org/wiki/Cordierite) (a ceramic material that is also used as catalytic converter supports (cores)). Cordierite filters provide excellent filtration efficiency, are (relatively) inexpensive, and have thermal properties that make packaging them for installation in the vehicle simple. The major drawback is that cordierite has a relatively low melting point (http://en.wikipedia.org/wiki/Melting_point) (about 1200 °C (http://en.wikipedia.org/wiki/%C2%B0C)) and cordierite substrates have been known to melt down during filter regeneration. This is mostly an issue if the filter has become loaded more heavily than usual, and is more of an issue with passive systems than with active systems, unless there is a system break down.
Cordierite filter cores look like catalytic converter cores that have had alternate channels plugged - the plugs force the exhaust gas flow through the wall and the particulate collects on the inlet face.


And another silicon carbide

The second most popular filter material is silicon carbide (http://en.wikipedia.org/wiki/Silicon_carbide), or SiC (http://en.wikipedia.org/wiki/SiC). It has a higher (2700 °C) melting point than cordierite, however it is not as stable thermally, making packaging an issue. Small SiC cores are made of single pieces, while larger cores are made in segments, which are separated by a special cement so that heat expansion of the core will be taken up by the cement, and not the package. SiC cores are usually more expensive than cordierite cores, however they are manufactured in similar sizes, and one can often be used to replace the other.
Silicon carbide filter cores also look like catalytic converter cores that have had alternate channels plugged - again the plugs force the exhaust gas flow through the wall and the particulate collects on the inlet face.

And another the metal fibers kind

Some cores are made from metal fibers - generally the fibers are "woven" into a monolith. Such cores have the advantage that an electrical current can be passed through the monolith to heat the core for regeneration purposes. Metal fiber cores tend to be more expensive than cordierite or silicon carbide cores, and generally not interchangeable with them.

and the paper kind:wtf:

Disposable paper cores are used in certain specialty applications, without a regeneration strategy. Coal mines (http://en.wikipedia.org/wiki/Coal_mine) are common users — the exhaust gas is usually first passed through a water trap to cool it, and then through the filter. Paper filters are also used when a diesel machine must be used indoors for short periods of time, such as on a forklift being used to install equipment inside of a store.
:confuzeld This is some good stuff and I thank you but what is in the LMM DPF? :confuzeld

:confuzeld This is some good stuff and I thank you but what is in the LMM DPF? :confuzeld

I think coriderite because our regeneration happens at about 1200C. Sorry i wasnt to clear:)

I think coriderite because our regeneration happens at about 1200C. Sorry i wasnt to clear:)
:)I thank you. Looks like they would have used the silicon carbide because in regen the EGTs reach 1200 degrees. Also where do you live in Tenn? I live in Smyrna, About 20 miles SE of Nashville. Have a good one.:)

because our regeneration happens at about 1200C. :)
:eek:
If regeneration happened at 1200C/2192F the DPF would be flaming out the tail pipe in small chucks, along with a huge cloud of yellow and whiite smoke. Wow 1200C is hot.

The ECM governor's Regeneration temperature to 650C/1202F. If temperatures exceed 650C the ECM cuts back on the post injections.

:eek:
If regeneration happened at 1200C/2192F the DPF would be flaming out the tail pipe in small chucks, along with a huge cloud of yellow and whiite smoke. Wow 1200C is hot.

The ECM governor's Regeneration temperature to 650C/1202F. If temperatures exceed 650C the ECM cuts back on the post injections.
:)That was not a misprint. When the truck is in regen, both the EGTs are reading 1100 to 1200 degrees. "I think" at the exhaust manifold it is around this temp all the time.??????:) You are correct, 1200 is HOT.:)

Anybody know what kind of metal the dpf is made of? Just wondering how long it is made to last?


I wish it was tin so I could smash it :D

Originally Posted by Dmaxpower2 http://www.dieselplace.com/forum/images/buttons/viewpost.gif (http://www.dieselplace.com/forum/showthread.php?p=3118398#post3118398)
:eek:
If regeneration happened at 1200C/2192F the DPF would be flaming out the tail pipe in small chucks, along with a huge cloud of yellow and whiite smoke. Wow 1200C is hot.

The ECM governor's Regeneration temperature to 650C/1202F. If temperatures exceed 650C the ECM cuts back on the post injections.


:)That was not a misprint. When the truck is in regen, both the EGTs are reading 1100 to 1200 degrees. "I think" at the exhaust manifold it is around this temp all the time.??????:) You are correct, 1200 is HOT.:)

I think you're missing the difference between 1200C and 1200F. I'm pretty sure our trucks regen at around 1000-1200 Farenheit, not Centigrade. As stated above, 1200C is 2192F.

X2 on the F&C thing!

coriderite has the lowest melting point of all the materials I have found and i have seached everywhere. And dosent the doc heat the exhaust up even further during regen?

I wish it was tin so I could smash it :D
Im glad its not cause I would of had already. One day, and this is a big might, I might have to reinstall it.

I think mine might last forever.... right now it's resting out in the shed... :D

Im glad its not cause I would of had already. One day, and this is a big might, I might have to reinstall it.

uh-oh why:o:

uh-oh why:o:
You never know what might happen. I rather keep it and not need it, then need it and not have it.:rolleyes:

Cobb's.com has the DPF eliminator system

I think mine might last forever.... right now it's resting out in the shed... :D


:D

Is this stuff worth as much on the scrap market as a regular gasser cats? I hope not, the crackheads will hardly leave the park and rides alone anymore. Seems like I talk to some one every week that had their cat cut off in some parking lot. Most of the time in broad daylight. It's gotten so bad in places the cops pretty much have to guard vehicles.

Is this stuff worth as much on the scrap market as a regular gasser cats? I hope not, the crackheads will hardly leave the park and rides alone anymore. Seems like I talk to some one every week that had their cat cut off in some parking lot. Most of the time in broad daylight. It's gotten so bad in places the cops pretty much have to guard vehicles.

You can fix that....Strait pipe it!!!!:D