Vacuum Heat Treatment Furnace
Vacuum Sintering Furnace
Vacuum Brazing Furnace
Please send us your inquiry about the customization of other furnace types or related questions about vacuum furnace. We will reply you immediately. Thank you.
All documents in the overview
News & Press
All news at a glance
Send us a message
Tel : +86-21-50878190
24 hours online : +8613916614261
Whatsapp : +8613916614261
Wechat : 2210154395
Address: NO.1299, XinJinQiao Road, Pudong New Area, Shanghai, China.
Copyright © 2010-2021 Shanghai Gehang Vacuum Technology Co.,Ltd. All Rights Reserved.
Vacuum brazing technology of oil-water compound cooler
Vacuum brazing technology of oil-water compound cooler belongs to vacuum brazing technology.
The process parameters are:
heating to 150-200℃, insulation 60-80min, vacuum degree > 2 x 10-2 pa;
Heating up to 300-400℃, insulation 60-80min, vacuum degree > 8 x 10-3pa;
Heating up to 450-530℃, insulation 40-60min, vacuum degree > 5 x 10-3pa;
Temperature rise to 560-570℃, heat preservation 120-140min, vacuum degree> 4 x 10-3 pa;
Heating up to 615-625℃, insulation 10-20min, vacuum degree > 3 x 10-3pa;
Reduce temperature to 613℃, keep heat for 15-420min, vacuum degree > 3 x 10-3pa;
Cool down to 595-600℃, keep heat for 35-45min, cut off and cool down to 597-600℃.