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Lab talk, the good, the bad, and the ugly
Zirconium
Cracks Cracks N More Cracks
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<blockquote data-quote="sidesh0wb0b" data-source="post: 249725" data-attributes="member: 7594"><p>i use LOADS of vericore and have zero issues with it.</p><p>i will say a few things that have been said here already</p><p></p><p>1. 300 degrees in the toaster oven is a bit high. i warm mine at no more than 200for 20-30min. (full crank of the dial is about 28min for my oven)</p><p>2. for a tray of singles or small bridges, your sinter program is slightly different from mine..... 8deg/min to 900C and hold for 30min. then 3deg/min to 1525C and hold 2hr. be sure your cool down ramp is slow enough. mines 10deg/min to 400C. entire program takes about the same 9-10hr for me. ive yet to play with it to shorten it some because im crazy busy and it is working for me. (this is NOT my program for large bridge sintering FYI)</p><p>3. cut off may be where the cracks are coming from. be sure theres lots of care pre sinter on these cutoffs.</p><p>4. ive yet to find good beads that last much more than a month or two....and they are stupid expensive (searching for an alternative). might want to change those out.</p><p></p><p>if youd like to PM me, i am having great success with vericore and will help in any way i can.</p><p>cheers</p></blockquote><p></p>
[QUOTE="sidesh0wb0b, post: 249725, member: 7594"] i use LOADS of vericore and have zero issues with it. i will say a few things that have been said here already 1. 300 degrees in the toaster oven is a bit high. i warm mine at no more than 200for 20-30min. (full crank of the dial is about 28min for my oven) 2. for a tray of singles or small bridges, your sinter program is slightly different from mine..... 8deg/min to 900C and hold for 30min. then 3deg/min to 1525C and hold 2hr. be sure your cool down ramp is slow enough. mines 10deg/min to 400C. entire program takes about the same 9-10hr for me. ive yet to play with it to shorten it some because im crazy busy and it is working for me. (this is NOT my program for large bridge sintering FYI) 3. cut off may be where the cracks are coming from. be sure theres lots of care pre sinter on these cutoffs. 4. ive yet to find good beads that last much more than a month or two....and they are stupid expensive (searching for an alternative). might want to change those out. if youd like to PM me, i am having great success with vericore and will help in any way i can. cheers [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Zirconium
Cracks Cracks N More Cracks
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