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Tag Archive: Vacuum impregnation video

1. Video: HVLV Walk Around

   July 17, 2019 2:22 pm Leave a Comment

   The HVLV vacuum impregnation system allows OEMs, contract manufacturers, die casters and foundries to have the benefits of vacuum impregnation in a simple, easy to use machine. In this video, John Halladay (aka Johnny Impreg) will show you some of his favorite features on how the system efficiently and effectively seals porosity while eliminating the costs and risk of outsourcing.

   

    

   Video Transcript

   Hey, Johnny Impreg here. Based on the response we got from my walk around of our CFi, I’ve been asked to do the same kind of video for our HVLV, it’s our High Value Low Volume semi-automated impregnation system.

   Favorite Features

   Here’s some of my favorite features of the HVLV. Number one, it’s a super small, compact footprint. It’s about 96 square feet, so you can integrate it right into your manufacturing, put it right in with leak test. Second of all, it’s got a super easy man-machine interface with light curtains to protect the operator at all times. 

   There’s three modules. You got your vacuum and sealant recovery system, then you’ve got your wash and rinse, and your cure. And to move between modules, all you do is take the basket out, insert it, and start it with a flick of a switch. The system’s PLC control being semi-automated and with the tack time of 240 seconds, you’ll get about 15 jobs per hour. 

   Let’s Talk

   I hope this information was helpful. If you have any questions, please leave questions or comments in the comments section below, or you can hit me up on WhatsApp or LinkedIn.

   Thanks a lot for watching. Bye for now. 

2. Video: When Should I Impregnate a Casting

   June 20, 2019 12:50 pm Leave a Comment

   The goal of a foundry is to produce high quality die castings that meet or exceed the customer’s specifications at a competitive cost.  In some die casting cases, those specifications require that the part must hold pressurized fluid or gasses. Companies use vacuum impregnation when the part must hold fluids or gasses under pressure. A common question asked about vacuum impregnation is “When Should I Impregnate a Casting?” This video addresses this question by answering if vacuum impregnation should be done before or after machining and finishing. 

   

    

   Video Transcript

   Hey, everyone. Welcome to “Casting Call” with Johnny Impreg. This is a premiere episode of a video blog series where we hope to answer all your compelling questions of everything impregnation. We’re going to start with the question I think I hear most often from folks is, “When should I impregnate a casting?”

   Spoiler Alert!

   Now, spoiler alert, I’m going to give you the answer now in case you’re short on time. But you want to do the impregnation after machining and prior to any kind of finishing like plating or painting. 

   Types of Porosity

   Now, here’s why. Let’s consider the three different types of porosity you see in a raw casting—blind porosity, through porosity, wall to wall, and fully enclosed. If you impregnate a casting in this condition, you’ll get sealant in the blind. You’ll get it here, but you won’t get any sealant in this area. That becomes important when you do the machining, because when you machined from here, you’re going to have a leak path.

   

   Now, if you do the impregnation after machining, you’ll still fill this and now you’ll fill this leak path as well. The reason you want to do it prior to finishing is you want to fill up all the porosity before you do the plating or painting. Otherwise, you could end up with out gassing or other blemishes that really don’t look so nice.

   

   Real World Example

   Let’s look at a real-world example on a cylinder block. Now, in this region here, we had a case where there was blind porosity going from here into the casting. It didn’t cause a problem until this machining cut was made. We have some other areas where we had enclosed porosity that was connected through two different machining passes. So, this is a real-world example of why you should do impregnation after machining. 

   

   So, I hope this little tutorial helped you. If you have any questions, please feel free to leave comments below and hit me up on WhatsApp or LinkedIn.

3. Understanding the Vacuum Impregnation Process

   July 19, 2017 12:10 pm Leave a Comment

   Vacuum impregnation  seals porosity and leak paths in metal castings and powdered metal parts that form during the casting or molding process. The process is done by filling the pores with a sealant under pressure to stop fluids or gases from leaking under pressure. Vacuum impregnation stops casting porosity and allows manufacturers to use parts that would otherwise be scrapped.

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