hackyue 发表于 2013-8-22 15:26:23

abnormal vacuum furnace condition

本帖最后由 hackyue 于 2013-9-26 13:03 编辑

When performing heat treatment in vacuum furnace, the temperature and pressure waved abnormaly
Pls check attached chart paper for details.

Waiting for heat treatment master to solve.

oliver 发表于 2013-9-26 11:08:32

Where is the chart paper attached?

hackyue 发表于 2013-9-26 13:04:27

oliver 发表于 2013-9-26 11:08 static/image/common/back.gif
Where is the chart paper attached?

Pls check the attached file for details.

oliver 发表于 2013-9-26 17:12:39

本帖最后由 oliver 于 2013-9-27 08:15 编辑

Attached chart seems not showing enough details.
Was it happened offen or occasionally? Maybe furnace leaked if ofen or complex reasons if occasionally.
sorry,no comments and solution for you!

hackyue 发表于 2013-9-27 10:22:58

oliver 发表于 2013-9-26 17:12 static/image/common/back.gif
Attached chart seems not showing enough details.
Was it happened offen or occasionally? Maybe furna ...

It happened suddenly.
We test the leak rate, and it is less than 0.2pa/hr.

oliver 发表于 2013-9-27 16:22:39

Is it possible that occational fluctuation of temperature caused wave of presure synchronously? If true,should make sure your heating and its contral system running stably.

uu263 发表于 2013-10-14 17:02:19

what is your questions?
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