Thread: Cold/Heat
View Single Post
  #19   Report Post  
Old January 12th 06, 04:52 PM posted to rec.radio.cb
james
 
Posts: n/a
Default Cold/Heat

On Mon, 9 Jan 2006 00:34:33 -0600, "DrDeath"
wrote:

+"Clark" wrote in message
...
+ How many of you have rushed out to get one of the Cold/Heat soldering
+ irons.
+ Runs off of 4 AA batteries WOW! allot of energy in those babies, most
+ likely
+ good for one PL259 soldering job.
+
+
+
+They show them soldering an IC. I don't think the IC would like that.
+

********

Most ICs are tolerent to 400 degrees celsius for up to 10 seconds when
heat is applied to the pin. In IR assited reflow ovens, most
components on the board are subject to 275 degree C heat upwards of 45
to 90 seconds. Total reflow process time for surface mounted
components in a reflow oven is between 5 and 7 minutes. Most of that
will determine the pallete material that act as carrier for the PCBs.

FR4/5 laminate material will withstand heat around 300 degrees C for 7
to 10 minutes without discoloration or delamination.


james