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11.5.2005, 19:50
Сообщение
#1
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Сообщений: 0 Регистрация: 17.10.2004 |
Зайдите на "поп-музик.ру" и зацените гитары из павловнии.
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11.5.2005, 19:50
Сообщение
#2
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Сообщений: 0 Регистрация: 17.10.2004 |
www.pop-music.ru/catalog1.php?brand=125&group=4&id=88880000562
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11.5.2005, 20:23
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#3
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Сообщений: 0 Регистрация: 6.4.2005 |
Мелко пошинкованные павлины.
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11.5.2005, 21:59
Сообщение
#4
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Сообщений: 0 Регистрация: 12.12.2003 |
а че ты хотел за такую цену, ладно хоть не из пресованых гандонов :)
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11.5.2005, 22:19
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#5
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Сообщений: 0 Регистрация: 26.2.2005 |
В Муздетали тоже ASHTONE из павлонии продают,пишут,что по свойствам похоже на ольху.
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12.5.2005, 0:07
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#6
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Сообщений: 0 Регистрация: 21.11.2003 |
да.. интересная цена, интересное дерево... куда теперь бежать? и что делать??
флайты маст дай!!! даздравствуют пресованные животные... вообще название звучит как болезнь прямой кишки!!
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12.5.2005, 0:52
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#7
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Сообщений: 0 Регистрация: 4.7.2004 |
есть еше ,,сонокелин,, и ,,нато,, 8))
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12.5.2005, 8:02
Сообщение
#8
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Сообщений: 30 Регистрация: 14.11.2003 Из: Москва |
What is Paulownia?
Quicklinks
History
Characteristics
Properties
Workshop Attributes
Traditional Uses
Modern Uses
Forestry Requirements
History
Paulownia is a deciduous hardwood tree that is native to China and other parts of South-East Asia. Historical writings from China, recorded as far back as 1049 BC, indicate that Paulownia trees were grown in plantations for the production of high quality timber. However, traditional methods of tree cultivation and reforestation are not capable of keeping pace with the global demand for quality timber. Plantation forestry is obviously the key for acceptable sustained forest management worldwide.
There are many myths and legends associated with the Paulownia tree as it holds great cultural value in many Asian countries. One such myth is the myth of the Phoenix. It is written in the works of Zhuang Tze:
"Phoenix flew from the south sea to the north sea without perching on trees other than Paulownia and without eating anything but bamboo fruit".
The Chinese describe the Paulownia as the 4 sided tree, as it grows by the side of the house, the side of the river, the side of the paddock and the side of the road.
In Japan when a girl is born the family will plant a Paulownia tree. When the girl marries the family will make a wedding chest from the Paulownia timber
Characteristics
The Paulownia tree has several distinguishing characteristics. They include:
• Very large, dark green fleshy leaves
• Masses of bell shaped flowers occurring in September
• Physical
A dimensionally stable, light, strong, clear, durable, odourless hardwood with an air dry density of 300 kg per m3.
• Colour
Consistently light honey to blond in colour.
• Grain
Beautifully grained with a silky, satin appearance.
• Machine-ability
Low in resin and free of volatile oils, consequently it is easily worked and moulded
• Joining
Excellent adherence with glues - joints and hinges hold fast with screws - can be edge nailed without splitting.
• Finishing
Accepts oil and spirit-based stains, lacquers, polishes and paints.
• Special Qualities
Sound absorbent, rapidly drying, gently on machinery .
Properties
Studies have revealed a number of excellent features of the unusual Paulownia tree.
It can grow up to 6 metres in its first season;
It can be harvested for pulping and craft wood within 3 years, and can produce good millable quality timber in as little as 6 years;
Paulownia is a versatile, dimensionally stable, consistently knot-free, durable quality timber that is easily machined and takes all stains, polishes, glues and paints;
It is plantation grown and conforms to sustainable and ecological principles;
Paulownia is a natural, light wood with a very attractive grain and satin blond finish;
Paulownia wood is generally insect and rot resistant, weathering to a light honey colour;
Paulownia wood is sound absorbent and has excellent acoustic and insulation properties; and
The wood is easy to work, gentle on machine tools, has superior gluing qualities, stains to any colour and has an exceptional finish that can easily be replicated time after time.
Workshop Attributes
Nailing
Paulownia can be nailed by hand or air-actuated tool. Bearing in mind Paulownia is a relatively soft timber and therefore requires lower pressures to effect the desired penetration. Paulownia has a low tendency to split and is best used in conjunction with an adhesive.
Screwing
Hand and power driven screws are suitable for use with Paulownia provided that adequate attention is given to the settings, so as not to overdrive the screw and reduce the holding ability of the thread. Good results are obtained by observing these constraints particularly when using power -drive screws. The uniformity of grain in Paulownia gives more consistent results with minimal splitting.
Gluing
Paulownia has been tested with five different brands of PVA, Cross-linked PVA and Urea Formaldehyde adhesives. Samples were prepared with each type of adhesive and Standard Separation tests conducted. Manufacturers, recommendations were observed for each adhesive. 100 % of the tested samples passed i.e. they did not separate along the glue line. AlI gave excellent results with minimal clamping time. Comparative tests between Paulownia and other hardwoods all showed the superiority of Paulownia timber with respect to fast cure time and uniform glue time. In all cases, using PVA adhesives on Paulownia halved the average time required for clamping. The time and cost saving in a board jointing production run is obvious.
Sanding
Paulownia is easy to sand. A smooth finish can be achieved using minimal effort. Sanding materials generally last much longer with Paulownia than other hardwoods. A fine finish is achieved in much less time. There is a very low resin content in Paulownia, which results in longer sandpaper life and less clogging of belts and pad sanders.
Machining
Paulownia is easy to saw, plane, mould, turn and carve. Low silica content results in longer life of all tool edges when vvorking with Paulownia. AII facets of power machining of this timber should give good results .
Staining and Finishing
Paulownia accepts paints and stains well. Oil and spirit stains are easily applied and give excellent results. A suitable sanding sealer is recommended before the application of clear finishes. Opaque finishes adhere readily. Light sanding between coats is recommended.
Lining Boards
Paulownia boards are suitable for lining in all interior walls and ceiling situations including bathrooms and saunas. They can be fixed vertically, horizontally and diagonally. Lining boards can be supplied dressed so that they can be sealed with a moisture excluding coating.
Lining boards should be supported at a maximum of 600mm spacings.
In kitchen and bathroom areas it is recommended that Paulownia be sealed on both sides before fixing. Two to three coats of a polyurethane clear resin will give good protection of exposed surfaces .
Doors and Windows
The lightness and relative strength of Paulownia makes it an ideal timber for exposed joinery such as external doors and windows.
Tests have shown that Paulownia, in its natural state, has an outdoor durability rating comparable to Western Red Cedar.
To preserve the natural appearance of Paulownia some form of proprietary coating should be applied.
Exterior Cladding
The natural durability of Paulownia lends itself to exterior cladding applications either in its natural blond coloured state or colour matched to suit the environment. It is recommended that an appropriate water-repellent sealant be applied (minimum two coats) before fixing. Where heavy exposure may be encountered Paulownia responds well to light organic solvent (LOSP) type preservatives, increasing outdoor life by preventing the onset of decay.
Traditional Uses of Paulownia
Traditional uses of Paulownia in many Asian countries include
Building
Furniture
Decorative mouldings
Cabinets
Framing materials
Veneers
Musical instruments
Venetian blinds
Modern Uses of Paulownia
Due to the lightweight nature of Paulownia, it is also being recognized for modern applications including:
Marine construction
Aircraft construction
Trains
Trucks
Buses
Caravans
Pallets
Crates
Vehicle interiors
Forestry Requirements
To achieve the maximum yield, Paulownia trees require sandy loam soils, plentiful water and high solar radiation during their growing period. The "Kiri Park" property, in the region north of Gingin, provides good environment for a Paulownia plantation.
• Climate
Paulownia fortunei is a deciduous tree, indigenous to south and east China, that has been grown successfully around the world in plantations in a wide range of climatic zones. Naturally it occurs between latitudes 20 degrees and 30 degrees mostly in the warm temperate to tropical zones. The temperature range in its natural distribution is –10 0C to 40 0C with an annual rainfall of 500 to 1200 mm mostly during spring and summer. The species is not tolerant of prolonged drought or waterlogged conditions. Because of the Mediterranean climate (wet winter/dry summer) in this region of Australia, the Paulownia tree must be irrigated if good growth rates are to be achieved. Paulownia is a sunlight loving tree (high light saturation point and low light compensation point). High solar radiation during summer in this region is advantageous for maintaining a high photosynthetic rate to sustain rapid growth. The growing season at Kiri Park is longer than in the southwest region south of Perth. Overall, the climate at Kiri Park is very suitable for growing Paulownia . Two to four -year-old trees are growing rapidly at Kiri Park.
• Soils
Paulownia has a deep root system with extensive lateral roots. This root system can forage for near-surface nutrients and explore sub-soils up to 5 metres for water. Like most trees, Paulownia performs best on deep, well-drained soils (pH 5 – 6) with good aeration. Paulownia grows well on sands to heavy loams where there are readily available nutrients. The property at Kiri Park has both loamy and sandy soils that in the past supported a tall woodland of eucalypts. The soil profile has good water and nutrient holding capacities. Fertilizers were regularly applied to the soil to support pastures in the past, thus there is a residue of nutrients for plantation establishment. Addition of fertilizer during the growing season, through the irrigation system, will be applied to ensure rapid tree growth.
• Water
The absence of summer rain at the Kiri Park property requires that over 500-mm of rainfall above that of evaporation be provided from irrigation during the growing period. Paulownia requires 5 to 50 litres of water/tree/day depending on age and weather conditions. Adequate water for the Project is available from developed bores. The Waters and Rivers Commission has granted a Water Licence to EFF allowing us to pump over 1.7 gigalitres per annum from the superficial aquifer. This is more than adequate to provide the required water to the Project. The water is of drinking quality, being low in iron and other ions. The low salt (NaCl) level is also important for good growth.
• Silviculture of Paulownia
Clonal lines of Paulownia fortunei, taken from selected, 3 year old plus trees in Nowerup, W.A., are used for the Project. The trees were selected on the following attributes: fast growth rate, canopy structure, trunk form and wood quality. This approach is standard in clonal plantation forestry. The plus trees are registered with the Australian Tree Breeders Association (PBR). This species appears best suited to Western Australian growing conditions north of Perth.
The clonal planting material is being produced by organ culture from mother plants maintained by EFF. These selections provide uniformity and increased productivity of the plantation under W.A. conditions. The plantlets from organ culture will be raised in a containerised nursery and hardened off prior to planting.
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12.5.2005, 8:40
Сообщение
#9
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Сообщений: 0 Регистрация: 12.4.2005 |
ахаха..))
Modern Uses of Paulownia
Trucks
Buses
НеКастер сегодня в отличном настроении))
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12.5.2005, 8:41
Сообщение
#10
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Сообщений: 0 Регистрация: 12.4.2005 |
К слову, Hi-Watt я так и не нашёл. На Ивана выйти не представляется возможном, как в воду канул..(
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12.5.2005, 10:41
Сообщение
#11
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Сообщений: 0 Регистрация: 21.2.2004 |
вот тут есть описание данного древа:
http://home.onego.ru/~otsoppe/enciclop/kustar/paulowni.html
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