Tag Archives: Surface Preperation

Air versus Turbine – Balancing Blasting Capabilities and Outcomes, Part 2

In addition to the pro and con evaluation of air blasting and turbine lasting found in our previous blog, these two methods can also be compared in terms of throwing velocity, applications, and industries.

In terms of throwing velocity. Media thrown by turbines immediately start losing speed the moment that the turbine blade releases it, producing higher intensity blast results closer to the turbine. Larger shot retains its speed better over a distance and is commonly used to maintain intensity while creating a larger blast pattern by positioning the turbine(s) farther away. In contrast, media thrown by air nozzles will continue to accelerate for the first 100-300 mm outside of the nozzle depending on blast pressure and media size and density until the compressed air fully dissipates to the ambient environment, meaning that your best blast results occur a distance away from the nozzle.

Continue reading Air versus Turbine – Balancing Blasting Capabilities and Outcomes, Part 2

Air Versus Turbine – Balancing Blasting Capabilities and Outcomes, Part 1

Blasting processes for surface finishing vary according to the size, quantity, composition, and desired finish of the work pieces in need of surface preparation. Air blasting and turbine blasting are two of the more common types of blasting. While there is some overlap between the two methods, each carries its own unique attributes and drawbacks.

When comparing these two blast methods, the number one thing to keep in mind is precision versus bulk. Air blasting provides precision surface preparation using a much smaller blast pattern compared to turbine blasting, which delivers large quantities of media over a wide blast pattern, thereby making it ideal for blasting large quantities of parts or larger individual parts.

Continue reading Air Versus Turbine – Balancing Blasting Capabilities and Outcomes, Part 1

Clean Fabricated Constructions with Shot Blasting Solutions

Shot blasting machines come in all shapes and sizes. Selecting a machine capable of cleaning and descaling complex fabricated components and welded constructions is not a task to pursue alone. Seeking the help of a company with proven expertise in the shot blasting field is always advised.

Designed specifically to clean wide head and base plates, ribs, re-enforcements, and the welds from fabrication, shot blast machines, such as roller conveyor machines, are designed around these types of work pieces.

Read more about blast cleaning of welded constructions

Blast Cleaning Of Welded Constructions

These machines are capable of cleaning and descaling complex welded fabricated components and constructions. They are designed specifically to clean wide head and base plates, ribs, re-enforcements along with the welded seams after construction.

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All round blasting is achieved after 3D simulation and actual placement of the blast wheels in the optimum locations of the blast chamber. The chamber can be designed with 2 blast zones, each zone designed to blast clean the surface of the infeed side and the second, the outfeed side and end. As the fabrication passes through the chamber, all gussets, re-enforcements, ribs, angles are descaled and cleaned to Sa Swedish standards and with the desired profile to optimise the adhesion of the coating to be applied.

The equipment requires to easily meet the most stringent customer specifications regarding surface cleanliness and cost, for steel traders, steel fabricators, equipment manufacturers, shipyards and manufacturers of wind power stations. In wind power applications roller conveyor systems are utilised for shot blasting of the steel sheets or plate required for the fabrication of the towers for off-shore and land based windmills.

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Typical applications fall into these fabricating industries:

  • Steel traders/ distributors
  • Steel fabricators
  • Equipment manufacturers
  • Gas and oil
  • Aerospace
  • Power generation – including wind turbine columns
  • Transport – rail, bus, lorry, earthmoving, agricultural
  • Steel portal frame, tower block, stadium and steel construction
  • Bridge , crane, access, scaffolding and lifting gear

Partners for Steel

There are distinct benefits to be offered by the cooperation between the manufacturers of both shotblast equipment and multispindle drill/saw lines. The objective of cooperation (as partners for steel) is to support customers in resolving the interface problems between the various technologies, integrating shotblasting, measuring, marking, drilling and sawing or punching and shearing or coping and profiling thereby offering customers added value and profit from the processing of steel.

Click here for information on cleanliness standards

Click here for information on surface profile

For further information on roller conveyor shot blast machines please click here

 

Haydn Kitchen New APost written by
Haydn Kitchen
Shot Blasting Technical Manager

 

A Complete Shotblasting And Painting Line

The demand for pre-finished quality steel sections, plate and tube is increasing throughout the world, year on year.  Many steel stockholders, distributors, fabricators and shipyards require their steel to be brought to the highest standard of cleanliness and coated for corrosion protection.

 

Preservation Line with Play Button cropped

Continue reading A Complete Shotblasting And Painting Line

Shotblasting – Recognising Steel Production Processes

Shotblasting of steel plate, profiles, construction, and fabrications is a process to clean, descale, provide a specified surface profile and edge break as a surface preparation. The process detail is subject to the hardness and start condition of the steel and it is vital to know these factors prior to shotblasting and before application of a coating or paint to maximise the adherence potential and corrosion control.

This is a document made up of five parts  on  “How Do You Make Your Coatings Stick Better?”

Section 1 – Specified Consistency
Section 2 – Measurement Terms
Section 3 – How To Measure
Section 4 – Cleanliness and Surface Profile

Continue reading Shotblasting – Recognising Steel Production Processes

Shotblasting – Cleanliness and Surface Profile

Shotblasting of steel plate, profiles, construction, and fabrications is a process to clean, descale, provide a specified surface profile and edge break as a surface preparation.  This process takes place prior to a coating or paint application to maximise the adherence potential and corrosion control.

This is a document made up of five parts  on  “How Do You Make Your Coatings Stick Better?”

Section 1 – Specified Consistency
Section 2 – Measurement Terms
Section 3 – How To Measure
Section 5 – Recognising Steel Processes (for hardness of steel)

Continue reading Shotblasting – Cleanliness and Surface Profile

Shotblasting – Surface Profile And Consistency

Shotblasting of steel plate, profiles, construction, and fabrications is a process to clean, descale, provide a specified surface profile and edge break as a surface preparation.  This process takes place prior to a coating or paint application to maximise the adherence potential and corrosion control.

This is a document made up of five parts  on  “How Do You Make Your Coatings Stick Better?”

Section 2 – Measurement Terms
Section 3 – How to Measure
Section 4 – Cleanliness and Surface Profile
Section 5 – Recognising Steel Processes (for hardness of steel)

Continue reading Shotblasting – Surface Profile And Consistency