Soldering metal ceramic FDPs Flashcards
What does it mean to have a solder that contains 65% gold?
65% = 650/1000 - fine gold
Group 1 solder is a ______ gold containing solder.
Traditional
Group 2 solder are _____ solders that have brand name with pre and post designation.
Special
Pre-ceramic solders are ____-____ alloys that slightly melt beneath the softening point of the parent alloy to be joined.
High-fusing
___-______ solders ideally should flow well above the fusion range of subsequent applied porcelain.
Pre-Ceramic
Which type of solder is being described?
- Difficult to control melting range
- Overheating base
- Pitting
- Corrosion
Pre-Ceramic
- Also includes not having a good bond with porcelain
Post-ceramic solders are ___ ____ alloys that melt below the pyroclastic range of porcelain.
Low fusing
Pre-solder should melt around what temperature?
2000F
Post-solder should melt around what temperature?
1300F
Which type of solder is being described?
- Slightly weaker and more brittle
- No quenching
- Small gap space leads to incomplete joint
- Large gap space leads to less strength
Post-ceramic
What are the 4 types of heat sources used for soldering?
- Torch soldering
- Oven soldering
- Infrared soldering
- Laser welding
Torch soldering is used mainly for (pre/post)ceramic soldering?
pre-ceramic (full gold)
Oven soldering is used mainly for (pre/post)ceramic soldering?
Pre and post ceramic soldering
Infrared soldering is used for what?
Low-fusing connectors
Pre-ceramic soldering joints
what is antifulx made of?
Graphite or iron oxide with turpentine
