Plasma spray coatings are used commonly in many industries, both specialist and non-specialist. Automotive, aerospace, medical, and petrochemical sectors all benefit from its uses, but can thermal plasma spraying be dangerous? Let’s take a look.
Thermal plasma spraying provides a topcoat that is resistant to wear, tear, and corrosion. It also provides thermal resistance. Coating materials are pressurised and sprayed using high-heat gas, resulting in them forming a bond with the substrate surface.
Whilst the process is complex and has associated risks, specialist facilities can complete projects on an industrial scale in a safe and secure manner.
Dangers
- A flame temperature of around 10,000ºC to 15,000ºC is used for the plasma spraying process. This can be a threat to anyone working within close proximity; therefore, all personnel need to be fully safety briefed and have a full understanding of emergency procedures.
- Fumes and dust produced by the process of working with molten materials can also be a risk to staff. Specialist facilities are equipped with sophisticated air ventilation systems and respirators to mitigate the risk of exposure.
- Staff will also be required to wear ear defenders and work only in enclosed designated spaces. This is because the process of thermal plasma spraying can be extremely loud, with sound pressure levels frequently exceeding 130dB; therefore, steps must be taken to protect the hearing of those working within the facility.
- High-voltage equipment is used in the thermal plasma spraying process, which is considered a risk due to the high levels of power. Specialist facilities will have automatic shut-off safety measures in place.
- Workers involved in the process will also wear eye protection and ensure their skin is covered at all times to prevent harm from the significant levels of UV light emitted.
Thermal plasma spray services
Specialist companies such as www.poeton.co.uk/surface-treatments/thermal-metal-sprays/plasma-coatings can offer expert advice and product selection for thermal plasma spraying.
Specialist providers operating in specialist facilities can provide a range of endorsements and accreditations that demonstrate their quality, experience, expertise, and commitment to safety.
