Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 45 users online :: 5 registered, 0 hidden and 40 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Gippeto, Google [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

sch 80 bonding

A place to ask general spud cannon related questions.
Sponsored 
  • Author
    Message

sch 80 bonding

Unread postAuthor: b-nice » Fri Sep 09, 2005 8:05 am

is there a better way to bond sch 80 other than sch 40 pvc glue and primer? i found some black maxx adhesive sealant on mcmaster and it said you can use it for pvc and it has a tensile strength of 3750psi!!!! does anyone have a opinion of this.
  • 0


b-nice
Private First Class
Private First Class
 
Posts: 36
Joined: Sat Aug 20, 2005 1:14 pm
Reputation: 0

Unread postAuthor: spudshot » Fri Sep 09, 2005 1:31 pm

i woudnt use it, since its just an adheisive, whereas PVC primer and cement melt the plastic together, and besides you'd never get to 3750 PSI anyway, your chamber/union would explode first
  • 0

Image

spudshot
Brigadier General
Brigadier General
 
Posts: 1036
Joined: Sun Oct 03, 2004 7:16 am
Reputation: 0

Unread postAuthor: boilingleadbath » Fri Sep 09, 2005 2:45 pm

The 3750 psi is the tensile streangth of the material. Heck, pvc has a tensile strength of 7,000 psi... which in no way means any old tube made of it can take 7,000 psi.
  • 0

User avatar
boilingleadbath
Moderator
Moderator
 
Posts: 1642
Joined: Sat Mar 12, 2005 10:35 pm
Location: Pennsylvania, USA
Reputation: 0

Unread postAuthor: CS » Sat Sep 10, 2005 12:59 am

They used that same trick on that ford commercial where they hang the truck from the ceiling and the scientist walks under it. If you remeber the commercial they were trying to prove that the bolts that held there bed to the truck were strong so to illustrate that they hung the truck by one of the bolts. But they hung it using the tensile strength of the bolt which isnt used on a truck bed. The tensile strength is alot more which wouldnt be used in a PVC application. Ive seen this trick used alot.
  • 0

User avatar
CS
Donating Moderator
Donating Moderator
 
Posts: 1897
Joined: Fri Feb 18, 2005 5:32 pm
Location: Southern Utah
Country: United States (us)
Reputation: 4

Unread postAuthor: boilingleadbath » Sat Sep 10, 2005 4:31 pm

It's not a "trick"... it's just a slightly dishonest selection of bolt properties to display. One might point out that the tensile strength of a 5/16" fine grade 2 bolt (higher grades are better) is more than 2 tons - but that's not a <i>safe</i> load to put on a 5/16" bolt. (safe loading is 270 lbs) - this is about twice the safe shear load.
Yeah, the yeild strength of the steel is probably about 30,000 psi... but the point is that <i>dementions matter</i>
  • 0

User avatar
boilingleadbath
Moderator
Moderator
 
Posts: 1642
Joined: Sat Mar 12, 2005 10:35 pm
Location: Pennsylvania, USA
Reputation: 0

Return to General Spud Cannon Related

Who is online

Registered users: Bing [Bot], Gippeto, Google [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'