Blasting techniques

After degreasing, metals have to be blasted with a sufficiently abrasive material to remove the surface oxidation layer. Application of the abrasive to the metal surface to be cleaned depends very much on the dimensions and type of metal. Large dimensioned metals and interiors of such articles as tanks, will require application of the abrasive by means of air blasting techniques. Smaller metals of suitable strength can be treated in rumbler machines where the metals are tumbled whilst being blasted by the abrasive carried in an airstream. 

Ultrasonic baths can be used to remove detritus from delicate moulds. This method eliminates the possibility of damage by blasting techniques and does not present the health hazard of chemical methods. 

Gustafson, R. Swedish Blasting Technique, SPI, Gothenburg, Schwe-... 

Must be detonated by adequate-strength Titan Boosters. Available in various grades in either polyethylene bags or bulk, both of which offer the Slurrex blasting technique PROPELLANTS... 

Explosive Excavation, Instant. The Corps of Engineers is in the process of developing a construction technique called "explosive excavation which.promises to save money, time, and the environment. Rows of 1 to 10 ton explosive charges are buried in a pattern to both break up the material and move it out of the excavation (See Fig Ex5). Controlled blasting techniques minimize fracturing beyond the excavation boundary. Illustration shows arrangement for a 500-foot long railroad cut at Trinidad, Colorado. In several demonstrations, cost was less than... 

Blasting Technique , SPI, Gothenburg, Sweden (1972) 8) R, Meyer, Explosives , Verlag... 

Conference on Explosives and Blasting Technique, every year, Organizer International Society of Explosives Engineers, 1975-... 

Abrasive blasting techniques can be used for large or irregular surfaces provided the abrasive medium is free of contaminants that could become embedded into the metal surface. Internally welded vessels should be finished according to prescribed welding procedures. Wire brushing or grinding should be done with materials compatible to the welded material, and at speeds that will not embed material into the weld. 

Barry, J.N. and Dowling, D.P. (2011) Comparison between the SBF response of hydroxyapatite coatings deposited using both a plasma-spray and a novel coincident micro-blasting technique. Key Eng. Mater., 493/494, 483-488. 

Many techniques are used to remove concrete in repair works, which vary from mild surface removal to destmctive methods such as blasting techniques [2,4,6], When conventional repair is used, however, only some methods are suitable to achieve the following requirements ... 

Improve blasting techniques and safety training, enhance the quality of blasting operators... 

Various blasting techniques exist. The acceleration of the grit is done with compressed air or turbine blades. The treatment is carried out in a closed room, with rubber-sealed doors. 

Holmberg, R., Persson, P. A. (1978, February 1-3). The SwedishApproach to Contour Blasting. Conference on Explosives and Blasting Technique. Society of Explosives Engineers, New Orleans, Louisiana, USA. 

Andrews, A. B. (1981, January 19-23). Design criteria for sequential blasting. In Proceedings of the Seventh Conf on Explosives and Blasting Technique, Phoenix, AZ (pp. 173-192). Montville, OH Society of Explosives Engineers. 

Ramulu, M., Chakraborty, A. K., Raina, A. K., Reddy, A. H. (2004). Influence of burden on the intensity of ground vibrations and air overpressure in opencast bench blasting. JnProceedings of the ISEE s 30 Annual Conference on Explosives and Blasting Techniques, New Orleans, LA (pp. 465-478). 

Wallace, J. (1996). What a gas blasting imder pressure. InProceedingsofthe 22" Ann. Conf. on Explosives and Blasting Techniques (pp. 140-150). 

McKown, A. (1984). Some aspects of design and evaluation of perimeter controlled blasting in fractured and weathered rock. In Proceedings of the 10 Conference on explosive and blasting techniques (pp. 261-269). 

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