Importance

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Abstract

A flame spray torch for the manufacturing of surface layers on workpieces by spraying thereon powdered materials is provided. The flame spray torch comprises a torch body with respective conveying ducts for oxygen, for a combustion gas and for a powder-carrier gas mixture, including an outlet opening in the torch body for the powder-carrier gas mixture. The torch also has a powder supply duct extending in the torch body, an insert part in the conveying duct for the powder-carrier gas mixture capable of being inserted therein from the outlet opening, the outlet opening communicating with the powder supply duct. An axial inlet opening is provided in the torch body communicating with the inlet opening of the insert part through an extension duct. The extension duct has a lateral opening which communicates with the oxygen conveying duct of the torch body through a regulating device, the inlet opening of the insert part being adapted for exchangeably receiving either an injector part or a closing member for the lateral opening thereof. The inlet opening of the torch body is adapted for exchangeably receiving either a closing member or a guiding member for a powder-carrier gas mixture or a carrier gas guiding member with a lateral inlet passage for oxygen arranged for communicating with the lateral opening in the extension duct.

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First Claim