Thermal Spray Decoded Part 2 of 3

THERMAL
SPRAY
DECODED


What you need to know about
the process and the companies
that do it for you.

4 Can any part or material be thermal sprayed?

5 What’s the difference between a non-thermal spray part and a thermal spray part?

6 Is one thermal spray source as good as the next?


Can any part or material be thermal sprayed?


In short, any material that can be melted can be sprayed by   thermal   spraying.   Depending   on   the   variation of thermal spray, material can be heated in a gun up to as hot as 14,000 C. However, the benefit of plasma & HVOF spraying is that these high temperatures stay inside the gun, transferring very little heat to the substrate itself. Substrate temperature rarely exceeds 300o C so coatings can be applied with little to no pre- or post-heat treatment while component distortion is minimal. With plasma   and HVOF spraying, coatings can be applied to thermal sensitive substrates like low melting point metals and plastics.


What is the difference between a thermal spray part and a non-thermal spray part?


Thermal spray coatings can be used as protection from heat, chemicals, molten metal, abrasion, adhesive wear galling, retting, and weathering. Thermal spray coatings can also be used to repair and renew worn components that would otherwise be too costly to replace. Non-thermal spray parts will generally be made with more expensive base materials in order to provide as many benefits in surface properties from the start of the process. While this non-thermal spray base material should be high quality, without a proper coating it will be subject to natural wear and corrosion, as well as any environmental factors that could expedite damage to the part. It also will be more expensive.


Is one thermal spray source as good as the next?


When deciding on a thermal spray provider, it is best to look for a company that also machines & finishes the parts that are being coated with thermal spray. It is important to remember that the coatings only make the base material better; a coating can make a sturdy part harder, but it can’t make a weak part strong.  As mentioned earlier, parts should be made with the coating process in mind, as there is an art to balancing the machining, turning, and grinding of a part with the coating.

Most Recent

Thermal Spray Decoded Part 3 of 3

By TJ Berridge
October 28, 2016 Category: Thermal Spray, HVOF, Plasma Spray, Spray And Fuse

THERMAL SPR AY DECODED What you need to know about the process and the companies that do it for you. 7 How important is base material 8 What can the right thermal spray company do for your parts, your business, and your bottom line? How important is base material? The integrity of the base material is critical to how a component is manufactured and ultimately performs. For this reason, it is absolutely necessary that you ask a provider where their base materials are sourced from. Base materials from China and Russia (for instance) have been known to be inferior in quality. Seek out manufacturing partners that source their raw materials from North America and Europe. If you have any hesitation about whether or not your manufacturer is telling the truth about where their raw materials come from, ask to see the documentation. Ultimately a good partner knows that your name is on the line too, so theyll do what they can to give you assurances of the quality you can expect. Using inferior

Thermal Spray Decoded Part 2 of 3

By Plasma Tec
October 04, 2016 Category: Thermal Spray, Plasma Spray, Hvof Spray

THERMAL SPRAY DECODED What you need to know about the process and the companies that do it for you. 4 Can any part or material be thermal sprayed? 5 Whats the difference between a non-thermal spray part and a thermal spray part? 6 Is one thermal spray source as good as the next? Can any part or material be thermal sprayed? In short, any material that can be melted can be sprayed by thermal spraying. Depending on the variation of thermal spray, material can be heated in a gun up to as hot as 14,000 C. However, the benefit of plasma HVOF spraying is that these high temperatures stay inside the gun, transferring very little heat to the substrate itself. Substrate temperature rarely exceeds 300o C so coatings can be applied with little to no pre- or post-heat treatment while component distortion is minimal. With plasma and HVOF spraying, coatings can be applied to thermal sensitive substrates like low melting point metals and plastics. What is the difference between a thermal

Thermal Spray Decoded Part 1 of 3

By Plasma-Tec
September 12, 2016 Category: Thermal Spray, HVOF, Flame Spray, Twin Wire Are, Plasma Spray

THERMAL SPR AY DECODED What you need to know about the process and the companies that do it for you. 1 What is thermal spray? 2 What are the main processes? 3 What does it do and when should thermal spray be used? Stronger, tougher, and an extraordinary ability to tolerate extreme environments it almost sounds like the description of a super hero. Of course you know what were talking about are the effects of thermal sprayed coatings. Through an intense process, thermal spray makes an already strong and carefully manufactured part even better. When parts are stronger, tougher, and more abrasion corrosion resistant, they become more effective, longer-lasting, and suitable for tasks they would otherwise not be capable of.This paper will provide you with a high level review of thermal spray processes and applications. By reading this paper you will gain a greater understanding - and appreciation - of thermal sprayed components along with the companies that perform this process well. What

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