ISO 9001 Registered
PH: 716.875.3380

What are thermal spray coatings?

February 6th, 2014
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 ISO 9001 Registered
 
 HVOF Robotic Pic Rev

Common

Thermal Spray Applications
Thermal spray coatings are used throughout many industries, from chemical, to power generation, to
steel production to semiconductor.
New applications are constantly developed.
Below lists general areas where thermal spray may be of
significant benefit…
~ Replacement of chrome plating using tungsten carbide thermal spray
~ Life cycle improvements where wear and corrosion lessen the life of your equipment

~ Restoration/ repair of old/ worn components or equipment.

Some common items repaired include…
  • Process Rolls
  • Shafts
  • Valve Components
  • Bearing Housings
  • Gear Boxes
  • Pump Components
  • Agitators
  • Printing Cylinders & Rolls
  • And many more…
HFW Industries, Inc.

ISO 9001:2008 Registered

196 Philadelphia Street

Buffalo, New York 14207-0008

Ph: 716.875.3380

Fx: 716.875.3385

E-mail: sales@hfwindustries.com
What is thermal spraying?
Basically, thermal spraying is when a coating material (in powder, rod or wire form) is heated to a designated temperature and then propelled in a molten state onto a substrate. The result is a mechanically bonded coating that will restore size or protect the substrate in the application.
It’s amazing that the thermal spray process, initially developed over 100 years ago in Switzerland by Max Ulrich Schoop, today uses technology that can spray coatings at supersonic speeds!
What separates HFW from our competition is our 60 years of expertise in thermal spray coating with complementary machining, finishing and assembly capabilities! 
This unique ‘One Source’ capability offers you high quality, timely manufacturing and repair service without the hassle of multiple vendors and blurred lines of responsibility.

 HVOF
How are thermal spray coatings applied?

HFW remains at the forefront of thermal spray technology by using state-of-the-art equipment, including robotics, with our 25 plus thermal spray systems.

The process chosen is based on what is best for each application. That may depend on the material to be sprayed, the substrate and the result desired. HFW has in-house laboratory facilities to qualify and test coatings to customer required specifications.

Thermal spray  processes we perform in-house include:

– High Velocity Oxy-Fuel or HVOF Coatings (pictured above)- dense metal/ carbide coatings

– Plasma Coatings- metal, ceramic and cermet coatings

– Sprayweld Coatings- metal alloys fused to the substrate

– Rokide Coatings- select ceramic coatings

– Metallize Coatings- metal coatings by wire or powder processes

HFW can apply any material that does not decompose as it is melted. These materials include pure metals, ceramics, cermets and polymers.

With over 60 years of proven success in extending equipment life, HFW will work with you to develop coatings specific to your application . We have been successful in designing coatings that have extended the life of equipment over ten-fold, savings millions of dollars for our customers! Ask us how our coating technology may be able help in your application!

Consider HFW Industries ‘One Source’ service in helping extend the life and reducing the cost of your application!

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Posted in Corrosion Protection, HVOF Coating, Repair, Thermal Spraying, Uncategorized |

Is it possible to improve quality, save money AND reduce downtime by repairing instead of replacing equipment?

January 24th, 2014
Check out the following
“Quick Links”
for additional information 
  
  
 

Application Example

(Vacuum Pump)

 * After pump disassembly and cleaning our scope was as follows…

 * Shaft and Rotor Assembly- Machine drive, seal and packing sleeve diameters and machine to prepare cone fits of rotor for coating.  Thermal spray with Hastelloy C and finish.

 * Cones- Thermal spray with Hastelloy C and finish grind to assure proper fit with rotor.

* Heads- Pressure test, machine inboard face and pilot diameter for coating and thermal spray with Hastelloy C and finish.
* Assembly- Assemble complete including bearings, seals, gaskets and packing along with dynamic balancing and painting as required.
The results?
Life of the pump
increased from 9-18 months to 5 years!

Email:  Sales@hfwindustries.com
HFW Industries, Inc.
196 Philadelphia St.
Buffalo, N.Y. 14207
Ph: (716) 875-3380
Fx: (716) 875-3385
Simply… YES! 

How?

By extending equipment life with coatings that rebuild diameters and reduce future wear and corrosion, while having all the work performed under one roof.

HFW has the unique ability to combine thermal spray coatings and weld overlays with precision machining, precision finishing and assembly.

These capabilities give us the capacity to repair and manufacture parts beyond mend.

Typical repair applications include:
  • Centrifuges
    • Scrolls/ Bowls/ Heads

       

  • Pumps (Vacuum / Liquid)
    • Rotors/ Cases/ Various Components
  • Gearbox Covers
    • Repair worn bores
  • Bearing Housings
    • Thrust and Radial, plus Seal Housings
  • Mixers/ Agitators
    • Shafts/ Paddles/ Blades/ Complete Assemblies
  • Valves
    • Guides/ Bodies/ Stems
  • Compressors
    • Reciprocating- Cylinders/ Piston Rods/ Pistons
    • Turbo- Shafts/ Rotor Assemblies

Grinding-Power-Turbo Shaft2

For 65 years we have been partnering as an OEM’s service
arm and working with end-users who have
special engineered equipment.
Let us put our experience to work for you!

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Posted in CNC Machining, Corrosion Protection, Repair, Thermal Spraying, Wear |

Can thermal spray improve your uptime and lower costs?

July 27th, 2011

   What are thermal spray coatings?

Can they help you increase equipment service life and save cost by salvaging worn parts?

 

   Common Thermal Spray ApplicationsThermal spray coatings are used throughout many industries, from chemical, to power generation, to steel production to semiconductor. New applications are constantly developed.

Below lists general areas where thermal spray may be of significant benefit…

 

~ Replacement of chrome plating using tungsten carbide thermal spray

~ Life cycle improvements where wear and corrosion lessen the life of your equipment??

 

~ Restoration/ repair of old/ worn components or equipment.

Some common items repaired include…

  • Process Rolls
  • Shafts
  • Valve Components
  • Bearing Housings
  • Gear Boxes
  • Pump Components
  • Agitators
  • Printing Cylinders & Rolls
  • And many more… 

 

 

HFW Industries, Inc.ISO 9001:2008 Registered196 Philadelphia StreetP.O. Box 8Buffalo, New York 14207-0008Ph: 716.875.3380Fx: 716.875.3385

E-mail: sales@hfwindustries.com 
 

 
What is thermal spraying?

Basically, thermal spraying is when a coating material (in powder, rod or wire form) is heated to a certain temperature and then propelled in a molten state onto a substrate. The result is a mechanically bonded coating that will restore size or protect the substrate in the application.

It’s amazing that the thermal spray process, initially developed over 100 years ago in Switzerland by Max Ulrich Schoop, today uses technology that can spray coatings at supersonic speeds!

What separates HFW from our competition is our 60 years of expertise in thermal spray coating with complementary machining, finishing and assembly capabilities! 

This unique ‘One Source’ capability offers you high quality, timely manufacturing and repair service without the hassle of multiple vendors and blurred lines of responsibility.

 

 
 How are thermal spray coatings applied? HFW remains at the forefront of thermal spray technology by using state-of-the-art equipment, including robotics, with our 25 plus thermal spray systems.   The process chosen is based on what is best for each application. That may depend on the material to be sprayed, the substrate and the result desired. HFW has in-house laboratory facilities to qualify and test coatings to customer required specifications.   Thermal spray  processes we perform in-house include: 

  – High Velocity Oxy-Fuel or HVOF Coatings (pictured above)- dense metal/ carbide coatings 

  – Plasma Coatings- metal, ceramic and cermet coatings 

  – Sprayweld Coatings- metal alloys fused to the substrate 

  – Rokide Coatings- select ceramic coatings 

  – Metallize Coatings- metal coatings by wire or powder processes 

  HFW can apply any material that does not decompose as it is melted. These materials include pure metals, ceramics, cermets and polymers.  

  
 

With over 60 years of proven success in extending equipment life??, HFW will work with you to develop coatings specific to your application . We have been successful in designing coatings that have extended the life of equipment over ten-fold, savings millions of dollars for our customers! Ask us how our coating technology may be able help in your application!

Consider HFW Industries ‘One Source’ service in helping extend the life and reducing the cost of your application!

Sincerely,

Matt Watson, Vice President- mwatson@hfwindustries.com

Ron Jurewicz, Manufacturing Mgr.- rjurewicz@hfwindustries.com 

Mark Sherman, Sales Engineer- msherman@hfwindustries.com

 

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Posted in Corrosion Protection, HVOF Coating, News, Repair, Thermal Spraying, Wear |

Could repair or re-stubbing of journals be all you need to fix your roll or cylinder?

May 24th, 2011

Over time, journal diameters can wear and cause a reduction in production quality and efficiency.

Sometimes production rolls or print cylinders require complete reconditioning, but sometimes a simple repair to the journal, or a re-stubbing of journals may be all it takes to keep your production line running effectively.

The cost of repairing a journal, versus replacing or reconditioning an entire roll or cylinder equals reduced maintenance costs.

Replacing and repairing journals has been an important part of how we save money for our customers every day.

Let HFW help you find ways to minimize your repair costs, while maximizing production!

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Posted in Repair, Uncategorized |

What is Hardfacing? Can Hardfacing Reduce Your Costs Due to Corrosion, Wear and Down-time?

May 10th, 2011
The total cost of wear and corrosion on industrial equipment each year is so high it’s incalculable. There’s a lot of opportunity to increase your process up-time by improving your wear and corrosion resistance by using hardfacing!
  
Mechanical properties of many substrates don’t include inherent corrosion resistance and thus require hardfacing to enhance their performance.
  
Ask us how we help our customers with hardfacing technology when we combine it with our machining, finishing and assembly capabilities!
 
So What Is Hardfacing? Hardfacing, or hardsurfacing, is a term used when a layer of weld overlay is applied over a base material in order to prolong the life or restore dimensions of the component. The bond formed between the overlay and base metal is metallurgical.

Methods for applying hardfacing include (but are not limited to):

  • Plasma Transferred Arc
  • Oxy-Acetylene Torch
  • TIG/ MIG/ Sub Arc

 Typical base materials that are hardfaced include:

  • Low & Medium Carbon Steels (ex: 1020/ 1030)
  • Alloy Steels (ex: 4140, 8620)
  • Stainless Steels (ex: 304/ 316)
  • Super Alloys
When to Consider Hardfacing?
  
~ When a component needs to be replaced and repair may be a low-cost option
  
~ When your application is in a highly corrosive atmosphere
  
~ When wear on a component becomes an issue over it’s life cycle
  
Think about your equipment’s life cycle, up-time requirements, part inventory cost and cost to replace versus repair a process component…
  
Common Hardfacing Applications
 
Steam valve components Compressor rods and sleeves
Pump cases and components
Mixing equipment
Extruder screws
Process rolls
Centrifuge screws
Seals
Fan blades
Molds
Dies
Plungers
Mining equipment
… and many more!

Every application is different. Reasons vary as to what will be the best method for hardfacing and what materials should be used. Typical materials are noted below.

 Commonly applied materials for reducing wear: 

(Includes wear via combinations of abrasion, impact, metal-to-metal, heat, etc.)

  • Tungsten carbide
  • T420 Stainless Steel
  • Cobalt based materials
  • Nickel based materials
Commonly applied materials for reducing corrosion:
 
 

 

  • T316 Stainless Steel
  • Hastelloy ‘C’ 276
  • Cobalt based materials
  • Nickel based materials

Our extensive in-house manufacturing and repair capabilities with almost 65 years experience give us the ability to offer you high-quality and timely services without the hassles of multiple vendors and blurred lines of responsibility.

Let HFW Industries quote our ‘One Source’ service for your upcoming project!

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Posted in Corrosion Protection, Hardfacing, Repair |