I accidentally cracked a small graphite crucible


#1

I broke one of the short graphite crucibles, designated for brass.


Bunch of broken and misused things found in JSM tonight
#2

@Team_Jewelry: Curious why we are doing molten Brass due to high concentrations of Zinc?


#3

We AREN’T doing brass, the crucible is supposed to be for bronze. @TBenV, is you were trying to melt brass you were doing so against the rules.


#4

Thank you for the clarification! That was my belief.

Note: Wishes we could due brass but too toxic.


#5

We kicked around doing brass using personal tools outdoors. I’ve seen aluminum done in the parking lot but no one has done brass to my knowledge.


#6

The times I’ve taken part in Aluminum pours it is done primarily for safety reasons associated with propane furnace/crucible and pouring molten metal.

Probably still a good practice - but with proper equipment and procedures it may/might/possibly be possible* to do indoors (Alum)

  • Is that hedging the statement enough?

#7

Sorry got derpy with the names,
In my original post, I was trying to refer to the alloy of Cu+Sn and sometimes Al. (Bronze)
But I typed Brass (Cu+!Zn!) I am aware of the hazards of bringing zinc/zinc alloys up to high temperatures,
!zinc fumes! (yellow “fog”) are produced and are toxic and carcinogenic.

Sumery:
MY MISTAKE, I MENT BRONZE

!!!DO NOT MELT ZINC ALLOYS!!! without proper ventilation, and PPE


#8

I don’t believe this exists at DMS… Just don’t do it at DMS.


#9

@kyrithia Can the Fibers Group make us a HAIR SHIRT that contrite individuals could voluntarily wear for wear briefly to show contrition? :wink:

Ben is now 18, an adult so we can start holding him to a higher standard. For people that have seen the beautiful LED table out back, Ben built this. So we can probably let this slide.


#10

I agree that is a fine table he built. I often learn something from Ben, usually related to science or electronics. Not today. Today I learned the word “yerpy”.


#11

What was going on when it cracked? Can you please detail what you were doing before?


#12

I know what “derpy” is … what is “yerpy”?


#13

I’d hazard its either an autocowrong/typing mistake or its derpieness carried to the next level.


#14

Re hair shirt
No problem! And it can be extra itchy :innocent:


#15

Can we have a dunce cap as well?


#16

Sure …


#17

I was thinking more traditional.

https://images-na.ssl-images-amazon.com/images/I/514qFL2mO4L.UX679.jpg


#18

Thank you for reporting @TBenV


#19

I only learned the word itself, not the definition. Haha.