Annals of Warsaw University of Life Sciences - SGGW

More documents

Recommendations

Info

Thickness of the paint coating film H2 Coating P1 Coating P2 Ra [μm] 1 0,9 0,8 0,7 0,6 0,5 0,4 0,3 0,2 0,1 0 Wood milling Sanding L1 - Thermomechanic pressing m echanical w orking L2 - Thermomechanic pressing L3 - Thermomechanic pressing Fig.5: Mean arithmetic deviation of the profile Ra (measured after finishing treatment), by different mechanical surface treatment of wood for selected types of coating materials The roughness can be characterized as a central arithmetic variance Ra, which we definited as a factor of the quality assurance of surface modification. The surface modification quality is evaluated by many facilities: aspecting, mechanical, chemical and resistance. On base summarily reviews of this facilities, the producer can characterize texture matters and give recommendation for their using in concrete conditions. From results of measuring the roughness it results, that surfaces with texture system P1had low The low roughness surface is achieved by the first ground coat, onto which has been applied texture stuff Aqua Primer thix, which has good fullness. CONCLUSION The aim of work has been study of the influence texture stuff by water fluxing on the roughness of the surface aspen wood. We analyzed changes of the roughness aspen surface wood by tangent -radial surfaces depending on: kind of mechanical and thermo/mechanical wood working, the type of texture stuff and two different thickness texture coat. On base choosing experiment and the statistical evaluation measured values we found out the next conclusion: - from the choosing ways of the mechanical and thermo/mechanical treatment of the surface aspen wood, the low average avalues Ra has been achieved the pressed surfaces. - the low average avalues Ra after surfaced treatment by the long way we achieved grinding and pressed surfaces and by the cross way there were grinding surfaces - near high thickness texture film values RA has been falling down at all texture stuff. Ratio between the accruing thickness of texture film and the decreasing rough is not possible to generalize for all kind of surfaces treatments. - statistically important differences on the roughness surface between different treatmented surfaces of aspen wood do not eliminate surfaces treatment has been made by the choosen water diluting texture stuff with the thickness texture stuff into 240 um. 32
LITERATURE 1. GÁBORÍK, J., ŽITNÝ, M. 2007. The influence of rotary smoothing on the quality of wood surface. In Annals of Warsaw Agricultural University. Forestry and Wood Technology. No 61. Warsawa, 2007, s. 230 – 232. ISSN 0208-5704. 2. JOURDAIN, CH., DWYER, J., KERSELL, K., MALL, D., MCCLELLAND, K., SPRINGATE, R., WILLIAMS, S. 1999. Changing nature of wood products – what does it mean for coatings and finish performance. In Journal of Coatings Technology [online]. 1999, roč. 71, č. 3, s. 61 – 66. Dostupné na internete: http://www.highbeam.com/doc/1G1- 54546330.html. 3. KÚDELA, J., LIPTÁKOVÁ, E., GINDL, M. 2004. On the Wetting Behaviour of Different Treated Beech Wood Surfaces. In Proceedings of the 2 nd International Symposium on Wood Machining, 2004, s. 467 – 473. ISBN 3-9501315-2-3. 4. LIPTÁKOVÁ, E., KÚDELA, J. 2000. Vlastnosti povrchu bukového dreva pri rôznom spôsobe mechanického opracovania. In.: Trieskové a beztrieskové obrábanie dreva 2000. Starý Smokovec – Tatry, Technická univerzita vo Zvolene 2000, s. 107–116. ISBN 80-228-0952-7. 5. MÓZA, M. 2007. Štúdium povrchu dreva a kvality povrchovej úpravy po aplikácii vybraných náterových látok. Diplomová práca, DF TU vo Zvolene, 2007, 97s. This contribution was supported by the Scientific Grant Agency of the Ministry of Education SR and the Slovak Academy of Sciences (Grant No. 1/0329/09, Grant No. 1/0565/10). Streszczenie: Wpływ wybranych czynników na jakość powierzchni osiki wykańczanej wyrobami wodorozcieńczalnymi. Jakość powierzchni drewna określano za pomocą parametrów chropowatości. Brano pod uwagę średnie odchylenie profile od wartości średniej Ra, dla powierzchni struganych, szlifowanych oraz prasowanych. Takie też powierzchnie były pokrywane wyrobami wodorozcieńczalnymi. Corresponding author: Gabriela SLABEJOVÁ Department of Furniture and Wood Products Faculty of Wood Sciences Technology Technical University in Zvolen T.G. Masaryka 2117/24 960 53 Zvolen, Slovak Republic slabejova@vsld.tuzvo.sk 33
Page 1 and 2: Annals Warsaw University of Life Sc
Page 3 and 4: ZIELIŃSKA-SZWAJKA JOANNA, GÓRSKI
Page 5: Board of reviewers: Bogusław Bajko
Page 8 and 9: analysis done on its base are one o
Page 10 and 11: On the base of the analysis, we sug
Page 12 and 13: Annals of Warsaw University of Life
Page 14 and 15: and analyzed on the level of tax ad
Page 16 and 17: REFERENCES: 1. Daňové trestné č
Page 18 and 19: description, selection and systemat
Page 20 and 21: Tab. 4 Regional foreign direct inve
Page 24 and 25: Опытные образцы пр
Page 26 and 27: EXPERIMENTAL PART The experimental
Page 28 and 29: 6. HENDARTO, B., SHAYAN, E., OZARSK
Page 30 and 31: Fiber direction - longitudinal Ra b
Page 36 and 37: ises, together with its value, that
Page 40 and 41: Similar experiments were carried by
Page 42 and 43: CONCLUSION Based on the evaluation
Page 46 and 47: We can say that HC included in adhe
Page 48 and 49: 4. PARK, B.D., LEE, S.M., ROH J.K.
Page 50 and 51: plywood pressing). Spectra of liqui
Page 52 and 53: confirmed by the fact that the peak
Page 56 and 57: RESULTS AND DISCUSSION The obtained
Page 58 and 59: Streszczenie: Emisja VOC z filmów
Page 60 and 61: particleboards of 18 mm thickness l
Page 62 and 63: laminated particleboards released f
Page 66 and 67: of a rubber granulate mat, adhered
Page 68 and 69: Type of tests point I III III I III
Page 72 and 73: Parameter, unit Application method
Page 74 and 75: 3.2 Graph 3. Shear strength of glue
Page 76 and 77: property that is not directly inclu
Page 80 and 81: Die Idee, alte Papiere umzuarbeiten
Page 82 and 83:
Annals of Warsaw University of Life
Page 84 and 85:
Table 1. Results of hardness tests
Page 86 and 87:
cause faster and less even wear of
Page 88 and 89:
Page 90 and 91:
CH 2 OH CH CH 2 CH 2 OH CH CH 2 CH
Page 92 and 93:
Page 94 and 95:
supply increment of the ,,j” prod
Page 96 and 97:
Page 98 and 99:
Basierend auf der Umfrage ergaben s
Page 100 and 101:
Bild 7. Standzeitdiagram - Vorschub
Page 102 and 103:
ANWENDUNGEN Die Ergebnisse dieser S
Page 104 and 105:
Verhältnis der maximale Durchmesse
Page 106 and 107:
Basierend auf der Umfrage, für die
Page 108 and 109:
Page 110 and 111:
drills are described in the work of
Page 112 and 113:
Calculation of the thrust force and
Page 114 and 115:
CONCLUSION The idea of considering
Page 116 and 117:
Page 118 and 119:
Fig. 4. Relationship between cuttin
Page 120 and 121:
Page 122 and 123:
life observed for MDF is longer tha
Page 124 and 125:
Page 126 and 127:
Table 1. Types and characteristics
Page 128 and 129:
ACKNOWLEDGEMENT Investigations were
Page 130 and 131:
That is why a proper treatment seem
Page 132 and 133:
CONCLUSIONS 1. Treatment of oil pal
Page 134 and 135:
Page 136 and 137:
максимальной степе
Page 138 and 139:
REFERENCES: 1. Шубин Г.С. Ф
Page 140 and 141:
MATERIAL AND METHODS Used method We
Page 142 and 143:
TVOC emitted by various kind of woo
Page 144 and 145:
Page 146 and 147:
tensile force the dynamics of these
Page 148 and 149:
Streszczenie: Gęstość drewna wia
Page 150 and 151:
it was attempted in this study to a
Page 152 and 153:
Cameron and Dunham [1999], when com
Page 154 and 155:
Page 156 and 157:
unstable joints made of metal were
Page 158 and 159:
Photo 8. View of an incorrect joint
Page 160 and 161:
Page 162 and 163:
called CORDA, while the lowest cont
Page 164 and 165:
Page 166 and 167:
willow clone, whereas the clone des
Page 168 and 169:
Page 170 and 171:
Fig.2. Modulus of rupture of partic
Page 172 and 173:
Page 174 and 175:
a) P, % 100 90 80 70 60 50 40 30 20
Page 176 and 177:
Page 178 and 179:
the connection, and too little surf
Page 180 and 181:
Page 182 and 183:
■ Multidimentional air stream wit
Page 184 and 185:
Page 186 and 187:
Fig. 2. Proportion of elements in l
Page 188 and 189:
2. The highest efficiencies were fo
Page 190 and 191:
Characteristic values of annual inc
Page 192 and 193:
CONCLUSIONS The following conclusio
Page 194 and 195:
Page 196 and 197:
that of particleboards with the cor
Page 198 and 199:
Streszczenie: Właściwości eksper
Page 200 and 201:
across the fibres on two counterpar
Page 202 and 203:
CONCLUSION Obtained results allow t
Page 204 and 205:
chamber PW 10 from firm HAMECH in H
Page 206 and 207:
Fig.4. RMS of F w during milling of
Page 208 and 209:
Page 210 and 211:
Fig.4. Influence of modification on
Page 212 and 213:
Page 214 and 215:
Fig. 2. Changes in breaking length
Page 216 and 217:
Fig.5. Changes in tear strength of
Page 218 and 219:
Page 220 and 221:
e) f) Fig. 1 Thickness changes of v
Page 222 and 223:
REFERENCES 1. KAFKA, E. a kol., 198
Page 224 and 225:
produce underground rhizomes and it
Page 226 and 227:
It results from a comparison of the
Page 228 and 229:
Alternatywne źródła energii. Dob
Page 230 and 231:
качества при длите
Page 232 and 233:
3 Ширина годичного
Page 234 and 235:
Page 236 and 237:
Table 2. Basic parameters of applic
Page 238 and 239:
Table 5. Test results (average valu
Page 240 and 241:
a) 6 weeks 12 weeks b) 3 months 7 m
Page 242:
- PN ISO 7724−2:2003 Farby i laki
show all

Annals of Warsaw University of Life Sciences - SGGW

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?