Northmount Report post Posted October 30, 2018 @DonInReno It helps if you can maintain the same amount of heat on both sides during the welding or brazing process. Sometimes quite difficult to do. Slow cooling might help too. Over 50 years since I did some brazing of cast iron! Tom Quote Share this post Link to post Share on other sites
DonInReno Report post Posted November 1, 2018 On 10/30/2018 at 9:02 AM, Northmount said: @DonInReno It helps if you can maintain the same amount of heat on both sides during the welding or brazing process. Sometimes quite difficult to do. Slow cooling might help too. Over 50 years since I did some brazing of cast iron! Tom Until recently I’ve never spent much effort conserving heat on the backside and opposite end of a project, but a few well placed bunched up welding blankets made a huge difference in maintaining even temperatures. A good infrared thermometer has really been enlightening during preheat - at least for me it makes the difference between guessing and being within 200 degrees from one end to the other to simply taking a few measurements and easily being within 50 degrees. The next time I may prop the machine’s bed on its side to go a step further and allow torch access to the back. Quote Share this post Link to post Share on other sites
