What happening in RT film 1

[nkvon]

I saw in Film like this, (see attached file) the portion lighter than other but Idont know what happen and how to prevent it, Is it acceptabe?
Could anybody help me
I'm really appreciate

 

[racookpe1978]

The four vertical lines look like the test strips (proof wires) placed between the film and target to prove the penetration of the xrays.

Is that what you are questioning?

 

[nkvon]

racookpe1978, I mean whole film straight line between different density: 0 and 1B parts

 

[DekDee]

nkvon,
Not sure how to put this politely but if you don't have a clue about radiography - stay away !!!
The major change in density is due to film overlap,
Regards,
DD

 

[racookpe1978]

Oh. By the way, it appears you have a tungsten tip left inside the weld.

 

[kingnero]

I always thought that was a good thing, as Tungsten has higher mechanical properties than steel... So you're actually improving your connection (I know the interwebz are bad for transitting sarcasm, but I'm giving it a try whatsoever)

 

[racookpe1978]

Well, the tungsten is heavier than the steel, so inclusion like that always adds weight to the final welded assembly. That's a bad thing, since the extra weight might over-stress the pipe supports and foundations.

/sarchasm

 

[3DDave]

At least the crack initiator would already be known. No need to look elsewhere on the weld for the start of the crack.