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Blackballed
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 Those little spikey things on new tires.« »

See 'em? Yeah, those.

Why? What?



Quote, originally posted by ATL_Av8r »
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MrBadwrench
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  »« »

Tire molds have pinholes which allow the compound to be injected into the mold, and for air to escape the mold to avoid air pockets.

The spikes are where those holes were.

GsR
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 FV-QR »« »

puberty?
leaftye
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 Re: Those little spikey things on new tires. (Blackballed) »« »

I used to think that's where the rubber was injected into the mold, but Modern Marvels made a big deal out of how rubber was kneaded into layers specifically to increase its beneficial characteristics. Doing all that kneading only to inject it later seems like a waste of processing.



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 Re: (MrBadwrench) »« »

Always wondered. Figured it had to do with the production. Thanks.



Quote, originally posted by ATL_Av8r »
We know you have many choices when it comes to which online forum you like to be made fun of by for your asinine threads. That is why we here at The Car Lounge choose to make fun of you in ways others can't.

Quote, originally posted by Wimbledon »
My processor finds no aesthetic appeal.


leaftye
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 Re: (MrBadwrench) »« »

Quote, originally posted by MrBadwrench »
Tire molds have pinholes which allow the compound to be injected into the mold, and for air to escape the mold to avoid air pockets.

The spikes are where those holes were.

I can agree with the bolded part, but not the first part.



Eugene Leafty
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Vote for energy reform, not just discussions. Bill Richardson for President

czook
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 FV-QR »« »

I haven't seen those in a long time. Every new tire we get at Honda doesn't have them.



Quote, originally posted by PassSedanGLX »

I totally stanced your mom last night. Talk about stretch and poke!



monkeytronic
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  »« »

I always thought that the dudes who design tires were inspired by the likes of Madonna during her spiky boobs phase.
MrBadwrench
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 Re: (leaftye) »« »

Quote, originally posted by leaftye »

I can agree with the bolded part, but not the first part.


You are right, hot pressurised rubber is forced into the tread curing mold after the tire layers have been laminated. But it's not forced through the vent holes.

http://www.youtube.com/watch?v=If5t783NZFY

leaftye
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 Re: (MrBadwrench) »« »

Quote, originally posted by MrBadwrench »

You are right, hot pressurised rubber is forced into the tread curing mold after the tire layers have been laminated. But it's not forced through the vent holes.

http://www.youtube.com/watch?v=If5t783NZFY

Damn, that video is great. I was reading the tire chapter in The Science & Technology of Rubber. It was good, but I much prefer that video. Neither the book nor video explicitly state that those nipples are from vulcanization/curing, but that's obviously where they are from.



Eugene Leafty
Fungi produce 13% of all the CO2 in the atmosphere, my motorcycle produces over 100 gallons of H2O per year.

Vote for energy reform, not just discussions. Bill Richardson for President

dieselraver
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 Re: Those little spikey things on new tires. (Blackballed) »« »

Quote, originally posted by Blackballed »

See 'em? Yeah, those.

Why? What?

owner forgot to use this






Quote, originally posted by Jetty! »
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leaftye
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 Re: Those little spikey things on new tires. (dieselraver) »« »

Speaking of rubber, I hate the rubber on the handle of that razor.



Eugene Leafty
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Vote for energy reform, not just discussions. Bill Richardson for President

acuraudi
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  »« »

Vaguely interesting fact...I just bought a new set of Cooper CS4, and they make a big deal on their website about their "ventless design" that doesn't come with those little spikes.



Quote, originally posted by GTI 20v »
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 Re: (acuraudi) »« »

Those are the feelers. The modern automotational tire is cut directly from the hide of slain michelus worms, and it's not economical for the worm processing facilities to cut away all the sensory organs.



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 Re: (Juniper Monkeys) »« »

Quote, originally posted by Juniper Monkeys »
Those are the feelers. The modern automotational tire is cut directly from the hide of slain michelus worms, and it's not economical for the worm processing facilities to cut away all the sensory organs.

Hence, tire squeal.



Quote, originally posted by ATL_Av8r »
We know you have many choices when it comes to which online forum you like to be made fun of by for your asinine threads. That is why we here at The Car Lounge choose to make fun of you in ways others can't.

Quote, originally posted by Wimbledon »
My processor finds no aesthetic appeal.


monkeytronic
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 Re: (Juniper Monkeys) »« »

Quote, originally posted by Juniper Monkeys »
Those are the feelers. The modern automotational tire is cut directly from the hide of slain michelus worms, and it's not economical for the worm processing facilities to cut away all the sensory organs.

For many a moon now, farm-raised Naugas have been rounded up and their pleasurably soft hides processed into sumptuous Naugahyde using only the most loving industrialized methods of naturally synthetic hide harvesting and reactive chemistry involving only the most endearing of toxic chemicals. Why the tire industry wouldn't also be employing similar methods is just downright cruel.


leaftye
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 Re: (acuraudi) »« »

Quote, originally posted by acuraudi »
Vaguely interesting fact...I just bought a new set of Cooper CS4, and they make a big deal on their website about their "ventless design" that doesn't come with those little spikes.

No spikes at all, or less? It sucks that the Cooper site doesn't say what that ventless technology means to the customer. It really doesn't mean a damn thing at all other than it being a way for the manufacturer possibly being able to produce tires at a reduced cost.

It took me a while to find out what this ventless technology meant. Basically it's that instead of vent holes, the mold is created with interfaces that have clearances that allow air to pass, but tight enough so that rubber does not. The main benefit is that the vent holes do not need to be laboriously cleaned.

Tire Tread and Tire Track Evidence: Recovery and Forensic Examination -- page 128

Also: Tire Tread and Tire Track Evidence: Recovery and Forensic Examination



Eugene Leafty
Fungi produce 13% of all the CO2 in the atmosphere, my motorcycle produces over 100 gallons of H2O per year.

Vote for energy reform, not just discussions. Bill Richardson for President

Adam144
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 Re: FV-QR (czook) »« »

Quote, originally posted by czook »
I haven't seen those in a long time. Every new tire we get at Honda doesn't have them.

My new snow tires I just picked up this week have 'em.



All great machines have a soul....

leaftye
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 Re: FV-QR (Adam144) »« »

Maybe an older design? It sounds like the way they use to create ventless molds would have the greatest cost savings on tires with lots of sipes like snow tires have.



Eugene Leafty
Fungi produce 13% of all the CO2 in the atmosphere, my motorcycle produces over 100 gallons of H2O per year.

Vote for energy reform, not just discussions. Bill Richardson for President

BRealistic
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 Re: Those little spikey things on new tires. (Blackballed) »« »

That's five o'clock shadow. You must shave the tire before using it.



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 Re: FV-QR (GsR) »« »

Quote, originally posted by GsR »
puberty?





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