Picture of a Ingot

Ed_ · January 6, 2010, 10:36 PM

Can someone post a close-up picture of an ingot.

I melted some ww tonight for the first time and am paranoid that I have contaminated my batch with zinc. I only smelted 10 lbs. My thermometer,molds, and supplies are arriving tommorow, so I was not able to monitor the temperature. I culled the wheel weights by hand throwing out the Zn and FE that I seen and even used the side cutters on most

My muffiin pan ingots look strange.

Oh.. and I read the Casting 101 sticky a few times before I even started.

Ed

IllinoisCoyoteHunter · January 6, 2010, 11:36 PM

post a pic of yours and we may be able to tell. sometimes the first couple ingots coming out of muffin tins look strange. They soemtimes come out looking like swiss cheese with craters all over them. If you smelted them all in one go you probably didnt get any zinc contamination. If you scooped them clips out after they started floating you are fine. You would have scooped out the zinc ww's with the clips. Zinc melts around 780*, iirc. Lead melts way lower than that. You should have no worries.

chris in va · January 7, 2010, 12:20 AM

Mine look like a sponge, if that helps.

Ed_ · January 7, 2010, 06:41 AM

Thank you . The swiss cheese effect was what was worrying me.

Ed

GP100man · January 7, 2010, 07:19 AM

A drop of muretic acid will tell if theres any zinc present , it`ll dance for ya if it`s there.

Use safety equipment !!!

Ed_ · January 7, 2010, 07:37 AM

I will get some Muratic Acid and check it out.

Thanks,
Ed

January 6, 2010, 10:36 PM	#1
Ed_ Member Join Date: January 27, 2009 Location: Southwest Missouri Posts: 96	Picture of a Ingot Can someone post a close-up picture of an ingot. I melted some ww tonight for the first time and am paranoid that I have contaminated my batch with zinc. I only smelted 10 lbs. My thermometer,molds, and supplies are arriving tommorow, so I was not able to monitor the temperature. I culled the wheel weights by hand throwing out the Zn and FE that I seen and even used the side cutters on most My muffiin pan ingots look strange. Oh.. and I read the Casting 101 sticky a few times before I even started. Ed

January 6, 2010, 11:36 PM	#2
IllinoisCoyoteHunter Senior Member Join Date: December 23, 2008 Location: Southern Illinois Posts: 1,527	post a pic of yours and we may be able to tell. sometimes the first couple ingots coming out of muffin tins look strange. They soemtimes come out looking like swiss cheese with craters all over them. If you smelted them all in one go you probably didnt get any zinc contamination. If you scooped them clips out after they started floating you are fine. You would have scooped out the zinc ww's with the clips. Zinc melts around 780*, iirc. Lead melts way lower than that. You should have no worries. __________________ ~~IllinoisCoyoteHunter~~ ~NRA LIFE MEMBER~ ~NRA CERTIFIED INSTRUCTOR~

January 7, 2010, 12:20 AM	#3
chris in va Senior Member Join Date: December 26, 2004 Location: Louisville KY Posts: 13,806	Mine look like a sponge, if that helps. Last edited by chris in va; January 7, 2010 at 12:28 AM.

January 7, 2010, 07:19 AM	#5
GP100man Senior Member Join Date: August 1, 2007 Location: Tabor City , NC. Posts: 1,969	A drop of muretic acid will tell if theres any zinc present , it`ll dance for ya if it`s there. Use safety equipment !!! __________________ GP100man

January 7, 2010, 06:41 AM	#4
Ed_ Member Join Date: January 27, 2009 Location: Southwest Missouri Posts: 96	Thank you . The swiss cheese effect was what was worrying me. Ed

January 7, 2010, 07:37 AM	#6
Ed_ Member Join Date: January 27, 2009 Location: Southwest Missouri Posts: 96	I will get some Muratic Acid and check it out. Thanks, Ed