Home » Articles posted by ventrue21 (Page 11)

Author Archives: ventrue21

About ventrue21

How to guide: Cleaning metals for repair part 3 stainless steel repair with Steelaloy

In this 3rd installment of our three part series, How to clean metals, we will discuss the proper way to clean stainless steel before using our product, Steelaloy.  Steelaloy is a stainless steel rod used to repair steel without all the cost normally associated with other forms of repair, such as welding and brazing.

Stainless steel is a happy medium between aluminum and cast iron.  Steel isn’t as porous as cast iron and is less susceptible to corrosion.  However, it is still not as resistant to corrosion as aluminum.  Therefore, thorough cleaning and use of flux is highly recommended.  As with Alumaloy and Castaloy, a clean cloth or rag is the only cleaning tool needed for a neat break. For a rougher break, we recommend using a wire brush or wheel on the rough areas to smooth them out. Any liquid present needs to be wiped away and oil cleansers need to have time to dry completely.   Remember, even though steel is not as porous as cast iron, it can still absorb liquids so you will want to make absolutely sure the area to be mended is dry and free of flammable cleaners used to remove paint or oil. **THIS IS VERY IMPORTANT!! Once the area is prepped you may apply the acid we provided with your purchase. You will only need to use a few drops per our instructions. Use of flux is recommended but not required. Like with cast iron, the chances of contamination and oxidation is reduced in your repair when using flux so we always suggest that you take that extra step.

Part 1:  How to guide, cleaning focuses on Alumaloy to repair aluminum.
Part 2:  How to guide, cleaning focuses on Castaloy  to repair cast iron.
Part 3:  How to guide, cleaning focuses on Steelaloy to repair stainless steel.

We hope these cleaning guidelines have been helpful to you in the use of our products. If you have questions or comments please feel free to visit our stainless steel repair forum or post your comments directory to this article.  Feedback always helps us to serve our customers better.

How to guide: Cleaning metals for repair part 2 cast iron repair with Castaloy

In this 2nd installment to the three part series on how to clean metals I will discuss the proper way to clean cast iron before using our product, Castaloy.  Castaloy is a cast iron repair rod used to fix cast iron without all the work and money required by other forms of repair such as brazing, welding or epoxy.

In most cases, cast iron will need a bit more attention than aluminum or steel.  It is very susceptible to corrosion and oxidation so cleaning and using of our flux product is highly recommended.  As with Alumaloy, make sure the area you are working with is thoroughly wiped down and is free of contaminants.  This is of vital importance, as any contamination can cause poor wetting. Remember cast iron is porous and can absorb liquids so you will want to make absolutely sure the area to be mended is dry and free of flammable cleaners used to remove paint or oil.  **THIS IS VERY IMPORTANT!! We recommend vigorous scrubbing with a wire brush or wheel.  We provide an acid/cleaner with your purchase of more than 4 rods or you can purchase the acid/cleaner separately.  This substance is to be used last and is the final step in your cleaning preparation.  If you have chosen to go the extra step to help prevent future corrosion and to ensure a stronger bond, this is the time that you would apply a few drops of flux to the area being repaired. As always, flux is suggested but not required.

Part 1:  How to guide, cleaning focuses on Alumaloy to repair aluminum.
Part 2:  How to guide, cleaning focuses on Castaloy  to repair cast iron.
Part 3:  How to guide, cleaning focuses on Steelaloy to repair stainless steel.

We hope these cleaning guidelines have been helpful to you in the use of our products. If you have questions or comments please feel free to visit our cast iron repair forum or post your comments directory to this article.  Feedback always helps us to serve our customers better.

How to guide: Cleaning metals for repair part 1 aluminum repair with Alumaloy

Cleaning before using any of our products is very important.  I plan to do a three part how to guide explaining what is needed to be done for all three of our metal repairing products.  In some cases it may just need to be wiped with a cloth.  However, in most cases, it will require an abrasive or mechanical cleaning. This usually can be accomplished with the use of a wire brush or sandpaper.  Cleaning is very important particularly with How to guide: cleaning metals for repair part 2 cast iron repair with Castaloy and How to guide: cleaning metals for repair part 3 stainless steel repair with Steelaloy because it reduces the chances of future corrosion and helps make a more solid melding.  In this article I would like to talk about Alumaloy, a product used to repair aluminum.  More information can be found here about the physical properties of Alumaloy.

Aluminum is generally one of the easiest metals to work with as it is the easiest to clean. However,  be careful to take all of the precautionary measures to ensure a great outcome.  Areas to be mended will need to be completely free of paint, dirt, oil and other debris before using our aluminum repair rod. Any contamination can cause poor wetting and will eventually weaken the join points.  A smooth break may only need a quick wipe with a clean cloth or rag.  Be sure any liquid is removed in this step.   A small wire brush or sandpaper will usually be enough to remove particles and matter from a rough piece. If your project requires a more aggressive cleaning, you may want to use a wire wheel on a drill. Make sure to wipe it down afterward to remove any loose grit or debris. Also, you will want to keep in mind that it is important to maintain the proper surface roughness as wetting on a rough surface occurs much more readily than on a smooth surface of the same geometry. If there is any oil on the metal, you may need to use a cleanser to remove it.  Be sure the area is completely dry after use or thoroughly wiped down to avoid fumes and fire hazards. Be thorough so that when you begin the repair process, you do not have to stop once the metal has been heated and you have begun your repair.

Part 1:  How to guide, cleaning focuses on Alumaloy to repair aluminum.
Part 2:  How to guide, cleaning focuses on Castaloy  to repair cast iron.
Part 3:  How to guide, cleaning focuses on Steelaloy to repair stainless steel.

We hope these cleaning guidelines have been helpful to you in the use of our products. If you have questions or comments please feel free to visit our aluminum repair forum or post your comments directory to this article.  Feedback always helps us to serve our customers better.

New Millikin housing page added to Qualityhomelocator.com

Quality Home Locator has expanded its Millikin housing this year.  Most of these properties have been filled for this coming 2011/2012 school year but there are still a few spots left. Please contact my office if you are interested. Even if you are not ready for off campus living this year, now is a great time to start planning for 2012/2013 school year.  Today, on the company website, a list of all approved Millikin housing was released.  This chart displays all the properties designated for College off-campus living, the amount of total possible rooms, as well as rooms available for the next 4 school years.  This gives students the ability to start planning for an off-campus living option well in advance and feel comfortable knowing they have a place secured.  I suggest bookmarking the off-campus living availability website so that when we update that page you will be first to know.  We will also announce these updates on the company website located at http://www.qualityhomelocator.com and so signing up for the company’s free newsletter is also a good idea.

Dustin and Devin Clark at MSHSA State Solos/Small Ensemble

This past weekend I visited Mizzou: University of Missouri to watch Dustin Clark and Devin Clark participate in the MSHSAA State Solos/Small Ensemble Festival.  I have been lucky enough to watch these two kids grow into men over the past couple of years. If you spend any time with them at all, it is clear that they have bright futures ahead of them.  I am honored to call them close friends.  In order for someone to get invited to this festival they must perform in front of a judge at the local level and be awarded a 1 out of 5.  Those students with a 1, are then invited to come and perform in front of judges on the State level and then again rated between 1 and 5.  The first performance, a mixed double quartet (MDQ), was scheduled for 8:30am that morning.  The drive is about 2.5 hours so my day started off getting up around 5am.  The mixed double quartet includes Abby Williams, Devin Clark, Dustin Clark, Elisabeth Keller, Kyle Klemp, Laura Brunette, Matt Harvey and Rachel Anna Chopin.  They sang the songs Set Me As A Seal and Ride On King Jesus. As you can tell by the video, they truly are amazing.  They were awarded a state level score of 2.

Link to: MDQ Brunette singing Set Me As A Seal and Ride On King Jesus at the state level. Sang this April 30, 2011 at Missouri State Columbia.

Dustin Clark also made it to state with the solos Sea Fever and Swing Low Sweet Chariot.  He was awarded a perfect state level score of a 1.  Way to go Dustin!

Link to:  Dustin Clark Solo singing Sea Fever and Swing Low Sweet Chariot

Physicial properties of Alumaloy: Aluminum repair rod

We have received a number of questions about the strength and durability of Alumaloy on our aluminum repair forum.  We understand that people have concerns and we would like to address them.  In an effort to do this we are going to provide some of the metallurgical specs of Alumaloy here as well as an explanation of what they mean to you.  You will note we might compare the properties of Alumaloy with the properties of aluminum.  We take pride in our product and stand behind it 100%.  It is our hope that this information will reinforce your confidence in our product and us.

Tensile strength: 39,000 PSI
That means 39,000 pounds per square inch is required to tear it apart the meld of two pieces joined with Alumaloy.

Compression strength: 60,000 to 75,000 PSI
A meld with Alumaloy can withstand between 60,000 and 75,000 pounds per square inch of crushing power before breaking apart.

Ductility: Good
When Alumaloy is melded to other aluminum it becomes just as easy to shape as the rest of the material it is bonded with.

Electrical conductivity: Good
Alumaloy has a relative electrical conductivity to aluminum so shouldn’t impede any electrical repairs it is put to.

Thermal Conductivity: Excellent
Heat transfer for Alumaloy is consistent with aluminum and will maintain thermal qualities present before the repair.

Corrosion penetration: Excellent
Aluminum is resistant to corrosion and Alumaloy shares that property. Melds made with it will not corrode over time unless the aluminum itself does.

Brazing vs Castaloy (Cast iron repair rod)

Using Alumaloy and Castaloy is almost identical to using the brazing process with bronze or copper.  In my Alumaloy vs brazing article we talked about some of the similarities.  However, Castaloy is the most

Fix cast iron with no welding

Castaloy

similar to brazing due to the use of flux to prevent corrosion and oxidation. This is important when using a product like Castaloy because cast iron is susceptible to both. When doing repair work you want to avoid the possibility of weakening your fix that way.

A quick overview of brazing will give you an idea of how they compare. With brazing the area to be joined needs to be cleaned and properly prepped: clean edges and no debris. Pieces are placed and clamped if needed.

Flux is applied if using, then tacking is done. The tacking will place a bead of molten bronze in strategic locations to prevent the metal from expanding apart due to heat. Once the tacking is complete the metal is heated to a temperature for the bronze to melt and fills the void. As we have said before brazing will produce a good, strong patch.

Cast iron repair rod

Cast iron repair rod

Castaloy works similarly. The main difference is that when complete, the bond will be stronger than brazing because you are joining iron to iron and making it into a complete whole instead of just a joint. Brazing forms a patch but Castaloy creates a newer and stronger bond. The joint to be melded needs to be thoroughly cleaned, (Please see our article on cleaning). Once properly cleaned and the acid, (provided at purchase), is applied you can then add flux if you desire. The role of flux is to dissolve the oxides on the metal surface. This facilitates wetting by molten metal, and acts as an oxygen barrier by coating the hot surface. It thereby, prevents its oxidation. Additionally, it allows solder to flow easily on the working piece rather than forming beads as it would otherwise. When brazing, the metal repair rod is heated to a temperature that is slightly above it’s melting point.  When using Castaloy, we recommend that you heat the metal being repaired and not the rod itself. When you touch the rod to the metal, it will melt on contact. You will first want to set your tacks to prevent expansion. Once your tacks harden, proceed with mending. Heat the receiving metal to temperature and allow the molten Castaloy rod to fill in the gaps. Once the bond has cooled it will be as strong as it once was, if not stronger.

We hope this has helped to clear up any questions you may have had regarding the differences of our product and the brazing process. As always, if you have any questions or suggestions for please address them to our Castaloy forum and we will do our best answer them and make new information available to our customers as requested or needed

What is Flux? How is flux used to repair cast iron and steel?

What is Flux?

Flux is a chemical cleaning agent that facilitates soldering, brazing, and welding.  It does this  by removing oxidation from the metals to be joined.  In high-temperature metal joining processes, the primary purpose of flux is to prevent oxidation of the base and filler materials. It also helps transfer the heat evenly over the metal surface.  The use of flux also allows solder to flow easily on the working piece rather than forming beads as it would otherwise thus making the hot metal much easier to work with.

In summary, flux has 3 main components;

1. Chemically- it cleans metal surfaces to assist the flow of filler metals over base metals and provides a protective barrier against re-oxidation and heat scale.

2. Thermally- it assists with heat transfer from heat source to metal surface

3. Physically- it helps in the removal of surface metal oxides.

We strongly recommend the use of flux with your Castaloy and Steelaloy projects.

What is brazing? How to guide: brazing to fix aluminum, cast iron and steel

Brazing is a metal joining process where a metal filler is heated and distributed evenly between two or more close fitting parts. The filler metal, usually bronze or copper, is heated to slightly above it’s melting point. It is then allowed to flow over the base metal and cooled to join the pieces together. This is known as “wetting”. Usually a flux is placed on the metal. Flux is required to prevent oxides from forming while the metal is heated. The flux also serves the purpose of cleaning of any contamination left on the brazing surfaces. The brazing process is a similar process to soldering, except the temperatures used to melt the filler metal is above 800 degrees F. Torch brazing is the type of brazing that is used with Castaloy, Steelaloy, and Alumaloy. This is the most common form of brazing and works best when working with a small repair.

The two most important factors in obtaining a solid repair are surface preparation and temperature control. There are two main methods for cleaning parts prior to brazing.  One is to use an abrasive method to scuff up the surface area and the second is chemical cleaning. When using mechanical cleaning it is important to maintain the proper surface roughness as wetting on a rough surface occurs much more readily than on a smooth surface. The next area of concern is the effect of temperature and time on the quality of brazed joints. As the temperature of the braze alloy is increased, the alloying and wetting action of the filler metal increases as well. In general, the brazing temperature selected must be above the melting point of the filler metal. In general, the lowest possible braze temperature is used in order to minimize brazing time and the associated costs.

Scroll To Top