Sign Up


Have an account? Sign In Now

Sign In


Forgot Password?

Need An Account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.


Have an account? Sign In Now

You must login to ask question.


Forgot Password?

Don't have account, Sign Up Here
Please subscribe to paid membership

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

Vacuum Furnace End-User Q&A Community

Vacuum Furnace End-User Q&A Community Logo Vacuum Furnace End-User Q&A Community Logo

Vacuum Furnace End-User Q&A Community Navigation

  • Home
  • About Us!
  • FAQ Blog
  • Resources
    • Free to Join
    • Answer it Forward
    • What is an FAQ Blog Post?
  • Contact Us
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • Categories
  • Questions
    • New Questions
    • Trending Questions
  • FAQ Blog
  • Groups
  • Tags
  • Points Rewards
  • Users
  • Help
  • Home
  • About Us!
  • FAQ Blog
  • Resources
    • Free to Join
    • Answer it Forward
    • What is an FAQ Blog Post?
  • Contact Us

Ask | Share | Grow™ - Question & Answer Community

Of the Members, By the Members, For the Members!
VacuumFurnaces.com is a Q&A community where vacuum furnace product and service suppliers connect with commercial and captive heat treaters to share their practical skills and know-how and to establish valuable relationships around niche topics of expertise with vacuum furnace end-users in operations, production, training, maintenance, marketing, sales, and engineering.

Login
What's your question?
  • Recent Questions
  • Most Answered
  • Recent FAQ Posts
  • Most Visited
  • Most Voted
  • No Answers
  • Follow

Vacuum Furnace End-User Q&A Community Latest Questions

DSnell
  • 0
DSnell
Asked: January 22, 2023In: Control System – Testing

Number of SAT Thermocouples Required

  • 0

I have a Class 1 aluminum vacuum brazing furnace (per AMS2750 G) that has seven zone thermocouples. When performing a system accuracy test (SAT), must I verify all seven zone temperatures are within ±2° F of the SAT thermocouples installed ...Read more

I have a Class 1 aluminum vacuum brazing furnace (per AMS2750 G) that has seven zone thermocouples. When performing a system accuracy test (SAT), must I verify all seven zone temperatures are within ±2° F of the SAT thermocouples installed for the test?

Read less
sattc
  • 0 0 Answers
  • 0 Followers
Answer
Answer it Forward Challenge
  • 0
Answer it Forward Challenge
Asked: September 7, 2022In: Diffusion Pumps

Why diffusion pump doesn’t work properly?

  • 0

There is a brazing vacuum furnace that we are currently using. We are experiencing various problems with it. We think that it is probably due to diffusion pump. All gaskets were renewed, difussion oil was replaced with new one. Control tests were ...Read more

There is a brazing vacuum furnace that we are currently using. We are experiencing various problems with it. We think that it is probably due to diffusion pump.
All gaskets were renewed, difussion oil was replaced with new one.
Control tests were performed with a helium detector.
Internal water cooling leak test done.
Air and Helium Tests were performed on water places.
Although we did all these, when we opened the diffusion valve, it did not work actively.
And there is a little oil on the side of the oven, what is the reason?
Our pumps are less than 1 year old and new.
There are 2 pieces of (150 capacity) 1200 Roots BOOSTER pumps.
This is an urgent issue thats why we would like your contribution and assistance regarding solving the problem as soon as possible.
Vacuum Pump for Aluminum Brazing
Read less
diffusion pump
  • 0 0 Answers
  • 0 Followers
Answer
Anonymous
  • 0
Anonymous
Asked: September 7, 2022In: Backfill Gases

For bright annealing of 304 StSt, should I use a full backfill of hydrogen or perform a partial pressure control?

  • 0

I was wondering if you could kindly provide some info regarding bright annealing of 304 StSt. We have vacuum furnaces here however I require to process these parts within a hydrogen atmosphere and then rapid quench. My question is should ...Read more

I was wondering if you could kindly provide some info regarding bright annealing of 304 StSt. We have vacuum furnaces here however I require to process these parts within a hydrogen atmosphere and then rapid quench. My question is should I use a full backfill of hydrogen or perform a partial pressure control? Any advice would be greatly appreciated.

Read less
304 steelbright annealing
  • 0 0 Answers
  • 0 Followers
Answer
Answer it Forward Challenge
  • 0
Answer it Forward Challenge
Asked: July 26, 2021In: Instruments - Calibration

What is an AMS2750 calibration survey?

  • 0

Read less
AMS2750calibration survey
  • 0 0 Answers
  • 0 Followers
Answer
Fatima Suleiman
  • 9
Fatima Suleiman
Asked: June 7, 2021In: Vacuum Seals & O-Rings

Installing Viton (elastomer) gaskets on Vertical CF flanges

  • 9
Installing Viton (elastomer) gaskets on Vertical CF flanges

I was wondering if there are any tips or advice for securing a Viton gasket on a CF flange. One of our flanges would be opened frequently to access our samples but in trying to close it, so we cant ...Read more

I was wondering if there are any tips or advice for securing a Viton gasket on a CF flange. One of our flanges would be opened frequently to access our samples but in trying to close it, so we cant use copper gaskets since they are not reusable. The Viton gaskets I bought on the other hand don’t have a definite form so they don’t stay in place. I was wondering if anyone can please suggest a way to install them so that the flange seals and the Viton gasket doesn’t come off each time we open the chamber. Or if there is any proper O-ring style gasket for knife-edge CF flanges. Thank you.

Read less
elastomer gasketsVertical CF flangesviton gaskets
  • 0 0 Answers
  • 0 Followers
Answer
Answer it Forward Challenge
  • 3
Answer it Forward Challenge
Asked: April 13, 2021In: Leak Checking, Testing & Detection

What are acceptable helium leak rates?

  • 3

Read less
helium leak rate
  • 0 0 Answers
  • 0 Followers
Answer
Answer it Forward Challenge
  • 2
Answer it Forward Challenge
Asked: April 10, 2021In: Thermocouples

Can a thermocouple be twisted?

  • 2

Read less
thermocouples
  • 1 1 Answer
  • 0 Followers
Answer
Answer it Forward Challenge
  • 3
Answer it Forward Challenge
Asked: April 7, 2021In: Leak Checking, Testing & Detection

Are vacuum furnace leak rates linear?

  • 3

Read less
leak-up rate
  • 1 1 Answer
  • 0 Followers
Answer
Answer it Forward Challenge
  • 0
Answer it Forward Challenge
Asked: March 6, 2021In: Vacuum Pumping System

What are some common vacuum furnace pumping system failures and their solutions?

  • 0

Read less
pump failures
  • 0 0 Answers
  • 0 Followers
Answer
Answer it Forward Challenge
  • 0
Answer it Forward Challenge
Asked: March 3, 2021In: Thermocouples

Why do thermocouples start to deviate in temperature over time?

  • 0

After installing new (sometimes calibrated) thermocouples (i.e. type K/S/R), they start to deviate over time. What can be the cause of that.

After installing new (sometimes calibrated) thermocouples (i.e. type K/S/R), they start to deviate over time. What can be the cause of that.

Read less
temperature deviation
  • 1 1 Answer
  • 0 Followers
Answer
Answer it Forward Challenge
  • 0
Answer it Forward Challenge
Asked: March 1, 2021In: Cryogenic Pumps

Why must the cryogenic medium used to cool the cold trap between the gas manifold and the mechanical pump be liquid nitrogen?

  • 0

Read less
cryogenic mediumliquid nitrogen
  • 0 0 Answers
  • 0 Followers
Answer
Answer it Forward Challenge
  • 0
Answer it Forward Challenge
Asked: March 1, 2021In: Roughing Pumps

Why is it necessary to use the roughing pump to evacuate the vacuum chamber before opening the high vacuum (gate) valve?

  • 0

Read less
evacuationhigh vacuum valve
  • 0 0 Answers
  • 0 Followers
Answer
Answer it Forward Challenge
  • 1
Answer it Forward Challenge
Asked: March 1, 2021In: Carburizing

Why is carburizing less expensive than nitriding?

  • 1

Read less
carburizingnitriding
  • 1 1 Answer
  • 0 Followers
Answer
Answer it Forward Challenge
  • 0
Answer it Forward Challenge
Asked: March 1, 2021In: Carburizing

When and why does ion nitriding nitrocarburizing makes good sense?

  • 0

Read less
ion nitriding nitrocarburizing
  • 0 0 Answers
  • 0 Followers
Answer
Answer it Forward Challenge
  • 0
Answer it Forward Challenge
Asked: March 1, 2021In: Holding Pumps

What is the purpose of holding pump in vacuum furnace?

  • 0

Read less
holding pump
  • 0 0 Answers
  • 0 Followers
Answer

Sidebar

Stat

  • Questions 1k
  • Answers 81
  • Best Answers 0
  • Users 45

Top Members

Greg Kimble

Greg Kimble

  • 283 Points
AlessiaP

AlessiaP

  • 97 Points
Thomas

Thomas

  • 67 Points
patrickduis

patrickduis

  • 58 Points
rcauthon

rcauthon

  • 53 Points
Show More

Questions Categories

Vacuum Pumps
117Questions
, 3Followers
Diffusion Pumps
70Questions
, 4Followers
Thermocouples
70Questions
, 6Followers
Vacuum Technology
64Questions
, 4Followers
Leak Checking, Testing & Detection
54Questions
, 5Followers
Gauges - Vacuum
46Questions
, 3Followers
Vacuum Pressure
40Questions
, 2Followers
Vacuum Furnaces
34Questions
, 3Followers
Hot Zone - Heating Elements
32Questions
, 3Followers
Standards, Certifications & Accreditations
31Questions
, 1Follower
Quench Cooling System
29Questions
, 0Followers
Water Cooling Systems
25Questions
, 1Follower
Process Control System
24Questions
, 2Followers
Vacuum Seals & O-Rings
24Questions
, 1Follower
Instruments - Vacuum
19Questions
, 0Followers
Instruments - Leak Testers
17Questions
, 0Followers
Vacuum Brazing
17Questions
, 2Followers
Vacuum Processing
16Questions
, 0Followers
Temperature Uniformity Survey (TUS)
16Questions
, 2Followers
Instruments - Measurement
14Questions
, 1Follower
Heat Exchanger
12Questions
, 0Followers
Partial Pressure
12Questions
, 1Follower
Sensors - Pressure
11Questions
, 0Followers
System Accuracy Test (SAT)
11Questions
, 1Follower
Backstreaming
11Questions
, 1Follower
Baskets, Fixtures & Racks
10Questions
, 1Follower
Backfilling
10Questions
, 1Follower
Hot Zone - Refractory
9Questions
, 0Followers
Control System - Temperature
9Questions
, 1Follower
Components, Supplies & Materials
8Questions
, 0Followers
Instrumentation & Testing
8Questions
, 0Followers
Hot Zone - Insulation, Heat Shield
8Questions
, 0Followers
Outgassing
8Questions
, 1Follower
Vacuum Pumping System
8Questions
, 0Followers
Cold Traps
7Questions
, 0Followers
Heating Chamber - Hot Zone
7Questions
, 0Followers
Getter Materials
7Questions
, 0Followers
Roughing Pumps
6Questions
, 0Followers
Power Supply
6Questions
, 0Followers
Control System - Programming
6Questions
, 0Followers
Bakeout
6Questions
, 0Followers
Gauges - Pressure
6Questions
, 0Followers
Horizontal Vacuum Furnaces - Batch
5Questions
, 1Follower
Instruments - Calibration
5Questions
, 0Followers
Tubes, Pipes & Fittings
5Questions
, 0Followers
Residual Gas Analyzer (RGA)
5Questions
, 0Followers
Carburizing
5Questions
, 0Followers
Vertical Vacuum Furnaces - Batch
4Questions
, 0Followers
Cryogenic Pumps
4Questions
, 0Followers
Instruments - Detection
4Questions
, 0Followers
Metallurgy
4Questions
, 1Follower
Instruments - Pressure
4Questions
, 0Followers
Instruments - Analyzers
4Questions
, 0Followers
Hot Zone - Fixtures & Supports
4Questions
, 0Followers
Pressure Vessel (Shell-Tank)
3Questions
, 0Followers
Quenchants - Gases
3Questions
, 0Followers
Control System - Vacuum
3Questions
, 0Followers
Recorders
3Questions
, 1Follower
Data Acquisition
3Questions
, 0Followers
Valves
3Questions
, 0Followers
Instruments - Monitoring
3Questions
, 0Followers
Oil Quench Vacuum Furnaces
2Questions
, 0Followers
Hearth Assembly & Rails
2Questions
, 0Followers
Holding Pumps
2Questions
, 1Follower
Gas Supply System
2Questions
, 0Followers
Gas Generators
2Questions
, 0Followers
Controllers
2Questions
, 1Follower
Controller Software
2Questions
, 0Followers
Manifolds
2Questions
, 0Followers
Parts Cleaning Equipment
2Questions
, 0Followers
Electrical
2Questions
, 0Followers
Pyrometry
2Questions
, 2Followers
Instruments - Temperature
2Questions
, 1Follower
Flanges
2Questions
, 0Followers
Gauges - Mechanical
2Questions
, 0Followers
Vacuum Measurement
2Questions
, 0Followers
Integral Quench Vacuum Furnaces
1Question
, 0Followers
Booster Pumps
1Question
, 0Followers
Quench Nozzles
1Question
, 0Followers
Gas Storage Tanks & Vessels
1Question
, 0Followers
Loaders & Tracks
1Question
, 0Followers
Flowmeters
1Question
, 0Followers
Data Loggers
1Question
, 0Followers
Nitriding
1Question
, 0Followers
Health & Safety Protection
1Question
, 0Followers
Control System – Recording
1Question
, 1Follower
Control System – Testing
1Question
, 0Followers
Backfill Gases
1Question
, 0Followers
Semi & Continuous Vacuum Furnaces
0Questions
, 0Followers
Other Vacuum Furnaces
0Questions
, 0Followers
Elevator System
0Questions
, 0Followers
Hydraulic Power Units
0Questions
, 0Followers
Tank Base Assembly
0Questions
, 0Followers
Pump Chillers
0Questions
, 0Followers
Quench Blower Assembly
0Questions
, 0Followers
Baffles
0Questions
, 0Followers
Water Tank Assembly
0Questions
, 0Followers
Cooling Towers
0Questions
, 0Followers
Parts Handling Equipment
0Questions
, 0Followers
Electric Motors
0Questions
, 0Followers
Actuators
0Questions
, 0Followers
Other Sub-Systems
0Questions
, 0Followers
Hydraulics
0Questions
, 0Followers
Mechanical
0Questions
, 0Followers
Pneumatics
0Questions
, 0Followers
Solenoids
0Questions
, 0Followers
Vacuum Meters
0Questions
, 0Followers
Vacuum Furnace Maintenance
0Questions
, 0Followers
Other
0Questions
, 0Followers
Control System
0Questions
, 0Followers
Instruments - Sensors
0Questions
, 0Followers
Vacuum Valves
0Questions
, 0Followers
Feedthrus
0Questions
, 0Followers
Pressure Relief Valves
0Questions
, 0Followers
Control System – Calibration
0Questions
, 0Followers
Gas Surge Tanks
0Questions
, 0Followers
Work Preparation & Handling
0Questions
, 0Followers
Fixturing Techniques
0Questions
, 0Followers
Heating Chamber – Hot Zone Construction
0Questions
, 0Followers
Vacuum Measurement Systems
0Questions
, 0Followers
Sensors – Vapor Pressure
0Questions
, 0Followers
Mean Free Path
0Questions
, 0Followers
Leak Repair
0Questions
, 0Followers
Eutectic Melting
0Questions
, 0Followers
Cycle Recipe Design
0Questions
, 0Followers
Preheating, Soaking & Ramp Rates
0Questions
, 0Followers
Gas Quench Systems
0Questions
, 0Followers
Heat Exchanger Maintenance
0Questions
, 0Followers
Maintenance Procedures
0Questions
, 0Followers
Vacuum Seals & O-rings Maintenance
0Questions
, 0Followers
Vacuum Pump Maintenance
0Questions
, 0Followers
Vacuum Pump Performance Checks
0Questions
, 0Followers
Cleaning of Parts
0Questions
, 0Followers
Cleaning of Fixtures
0Questions
, 0Followers
Vacuum Furnace Systems & Design
0Questions
, 0Followers
Heat Exchanger Design
0Questions
, 0Followers
Basket, Fixture & Rack Design
0Questions
, 0Followers
Vacuum Furnace Construction
0Questions
, 0Followers
Hot Zone & Refractory Designs (Carbon & Metal)
0Questions
, 0Followers
Gas Quench System Design
0Questions
, 0Followers
Water Cooling System Design
0Questions
, 0Followers
Pumping System Design
0Questions
, 0Followers
Gas Nozzles & Hearth Design
0Questions
, 0Followers
Vacuum Furnace Installation & Commissioning
0Questions
, 0Followers
Vacuum Furnace Decommissioning
0Questions
, 0Followers
Plant Safety & Best Practices
0Questions
, 0Followers
Vacuum Heat Treat Applications
0Questions
, 0Followers

Explore

  • Home
  • Categories
  • Questions
    • New Questions
    • Trending Questions
  • FAQ Blog
  • Groups
  • Tags
  • Points Rewards
  • Users
  • Help