Dry ice blasting as pretreatment of aluminum surfaces to improve the adhesive strength of aluminum bonding joints

Elbing, F.; Anagreh, Nabil; Dorn, Lutz; Uhlmann, Eckart

doi:10.1016/s0143-7496(02)00083-0

Cited by 60 publications

(19 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Attraction forces between surface and attached coatings weaken because of different expansion factors, and uneven contraction is responsible for the formation of micro-cracks that further support layer separation. The layers finally detach from the base material when the adhesive energy is exceeded [11]. Subsequently, momentum transfer induced by the impact of solid CO 2 and the carrier gas stream move the particles away in the reflected jet.…”

Section: Removal Of Particulate and Adhered Impurities By Dry-ice Clementioning

confidence: 99%

Physical Methods for Cleaning and Disinfection of Surfaces

et al. 2011

View full text Add to dashboard Cite

Cleaning and disinfection are important operations in food processing because of the significant contributions to product hygiene and food safety. The transfer of residues from surfaces into a product and the contamination with adhering microorganisms must therefore be avoided with sufficient certainty. Traditional methods for the removal of adherents and inactivation of microorganisms are based on thermal, mechanical, or chemical principles and are known to be time-and energy-consuming. This has resulted in a search for alternative methods that show prospective potential for their use in food-processing plants. This review gives an overview on such methods, which are based on physical principles. In dry-ice cleaning, for example, carbon dioxide snow pellets are blasted onto a surface to remove adherents through a combined action of thermal and mechanical effects, followed by dissolution of these adherents. Ice-pigging is a procedure where an ice/ water mixture is forced through pipes, heat exchangers, or other equipment to carry off adhered substances. Another method for physical cleaning, mainly described in context with membrane filtration, is to use vibration in the ultrasonic frequency domain to reduce fouling and to stabilize permeate flux. Radiation from various sources (UV lamps, radionuclides, X-ray tubes) differs in its applicability and disinfection efficiency because of differences in energy and penetration depth. Cold plasma treatment is another promising technology that is currently under investigation for cleaning and disinfection of surfaces of inorganic and organic materials.

show abstract

Section: Removal Of Particulate and Adhered Impurities By Dry-ice Clementioning

confidence: 99%

Physical Methods for Cleaning and Disinfection of Surfaces

et al. 2011

View full text Add to dashboard Cite

show abstract

“…The presumption of authors (Peterka 1980;Habenight 2002;Elbing et al 2003) being related to the increasing function surface part thanks to increased values of surface roughness were confirmed. Higher values of bond- …”

Section: Resultsmentioning

confidence: 64%

“…The bonded surface wettability depends on the surface energy and on the surface integrity, which is represented above all by the roughness (Bumbálek et al 1989, Packham 2003. The more the bonded joint surface participates in the adhesive bonds the higher is the bonded joint strength (Peterka 1980;Habenight 2002;Elbing et al 2003). Harris and Beever (1999) do not agree with this statement.…”

mentioning

confidence: 99%

Influence of surface integrity on bonding process

Müller¹

2011

Res. Agric. Eng.

View full text Add to dashboard Cite

Müller M., 2011. Influence of surface integrity on bonding process. Res. Agr. Eng., 57: 153-162.Adhesive bonding technology is successfully applied partly in the primary production, partly in the renovation in various fields of human activities. This fact emphasizes the importance of the partial factors research, which influence is essential for the quality, reliability and necessarily the usable life of bonded joints. The mechanical preparation of bonded surface is a varied process which influences directly the resultant bonded joint quality. The aim of the bonded surface mechanical preparation is the adhesion improvement in the adhesive -adherend interface. For mechanical preparation we use tools of defined cutting edge, by means of which we get the uniform surface texture, e.g. by milling. On the contrary such methods are more often used when the uniform surface cannot be reached. Shot blasting and grinding are significant representatives of these methods. The manual grinding can be significantly applied mainly in the agriculture. The absence of connected areas availability for the mechanical tooling and impossibility of their work clamping are the reasons for that. The breakwater in the sprinkler cistern restricting the liquid motion is the example.

show abstract

“…The removal of contaminants such as sulphides, inorganic oxide, silicone oil and carbon black can be carried out using mechanical methods, chemical cleaning methods, dry ice blasting, ultrasonic cleaning methods, laser cleaning methods and plasma cleaning methods. Although the above conventional methods [1][2][3][4][5] are applicable to clean moulds, it is impossible to reduce the adhesion between the rubber or plastic products and the mould surfaces. Due to the physical adsorption, interface reaction, and mould shrinkage, adhesion may occur between rubber or plastic parts and moulds.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of anti-adhesion surfaces on aluminium substrates of rubber plastic moulds using electrolysis plasma treatment

et al. 2014

View full text Add to dashboard Cite

An anti-adhesion surface with a water contact angle of 167° was fabricated on aluminium samples of rubber plastic moulds by electrolysis plasma treatment using mixed electrolytes of C6H5O7(NH4)3 and Na2SO4, followed by fluorination. To optimise the fabrication conditions, several important processing parameters such as the discharge voltage, discharge time, concentrations of supporting electrolyte and stearic acid ethanol solution were examined systematically. Using scanning electron microscopy (SEM) to analyse surfaces morphology, micrometer scale pits, and protrusions were found on the surface, with numerous nanometer mastoids contained in the protrusions. These binary micro/nano-scale structures, which are similar to the micro-structures of soil-burrowing animals, play a critical role in achieving low adhesion properties. Otherwise, the anti-adhesion behaviours of the resulting samples were analysed by the atomic force microscope (AFM), Fourier-transform infrared spectrophotometer (FTIR), electrons probe micro-analyzer (EPMA), optical contact angle meter, digital Vickers microhardness (Hv) tester, and electronic universal testing. The results show that the electrolysis plasma treatment does not require complex processing parameters, using a simple device, and is an environment-friendly and effective method. Under the optimised conditions, the contact angle (CA) for the modified anti-adhesion surface is up to 167°, the sliding angle (SA) is less than 2°, roughness of the sample surface is only 0.409μm. Moreover, the adhesion force and Hv are 0. 9KN and 385, respectively.

show abstract

Dry ice blasting as pretreatment of aluminum surfaces to improve the adhesive strength of aluminum bonding joints

Cited by 60 publications

References 10 publications

Physical Methods for Cleaning and Disinfection of Surfaces

Physical Methods for Cleaning and Disinfection of Surfaces

Influence of surface integrity on bonding process

Fabrication of anti-adhesion surfaces on aluminium substrates of rubber plastic moulds using electrolysis plasma treatment

Contact Info

Product

Resources

About