DEP0021706DA - Process for the production of wood-like plates or prismatic bodies by hot pressing - Google Patents

Description

Patent attorney Ernst Haigis

Telephone No. H ^ y ^ ttfciJ & iisÄiilcJgi Postscheck-Account ι Amt Hannover No. 68928 Bank account: Commerz- und Privat-ßank, Bielefeld

Bielefeld, the 2 ^. & T p

Serial Act cS

U Ltppe

Ot ¹ Wt i> iireitij Verfrhnm xttr HeroteiXunet mn r ^ rkplatien oäm * tiiökm ~ * taJsurpcrr. & ulann% Mc for verpii & ung in ä & r

tM ^ liT4> uatrif _Jt Ui BavfimX-oett; air · Verkletttwta Όοη PMmrn οά & * Ausfällung mn &*> teze * L i & stimzt otnu * MeBe l ^ keri ^ tün ¥ m »jmnm OmOßmka as Binaomiizel Mir Ute nürdoineriön Berste; ^ uorticisijttah $ i $ m odor _t <;& mU jJ & ß & iiutmaatt hrs »as mil ^^ & sr IterOPiUimr? valöHer forrM ^ iändiger Gübilös fcnät-n οίΰίσης Jolzfoaarn * animal imstcr *, ula & fcs € r? i _w . jföZsssp & ie, ai & h Tcrtilp & ^ me jm ^ 3hiiiinff _e rte In nasty sdzemit & i method hurmatul & on f ^ rtütü'jfw camouflage Jmi limtiicil a · να? Η "Λΐ7Λ *; ϊ £ ίρ holien Pperifp - 'ridits: α ^ ridits: % rc Perwn- ^ ζ§ψ aariclle Jon Hol 'li-mfio a & ir cnatvert over smajliah

jr & frtfi Vsrf ^ nri, n zur Ikrvve-'lunr mn Z ^ rltpl: lariäidrptm ^ Ur ine ganmwtQt * ZMofce ll * i $ i atß Aufißc & i sv cc, Piütien ä ' body ft-rsLcteller ,, derm cmttfti, Term

i &; mrii «jyrHcki lirt Jtes

3i: Jic ^ f bid dU W $ 2tcM * itt *

Dtrri:

arr ^ saicller * ürt. ϊ & Λυ u ^ rmctar iurjjfLcnp Dun l'niCe «

UZ *: -lt- :: QiL, SzTQ ¹ Z i ^ fCK, "wrv zr:» _s "U Citser snrvirj ⁷ I

Jjd

Is the screening of larger pieces _t for which the pin mill is not suitable _? is attached * Bach digestion by the pin mill has the peat a loose structure so that _f au large water content "can be easily removed by drying to large water content; makes the material elastic and therefore difficult to deform and. In addition, the Bampf "development of the hot press is so great _s that Ujj" is not guaranteed a sufficient escape of steam © Sin w, broad desiccation would make the material brittle »E _s recom- mended _f £ _r ocknung of the material only so to drive far ^ that the water content is about 35% of the dry weight of the white peat

S ₈ Bi finely crushed Weißtor.f can also becoming additions of wood chips or of planting loan or technical fibers added Even more of these additives can be simultaneously used werden® A Anueil of 25% f ^ J ^^ geane ^ ea ^ ^^ SolBstaub iet ^. beneficial for the pressed material «

Bas loose G _e add the fibrous materials allows now the application of a specifically light sparsamster binder in form and that if it is volatile j _fi hen by Aufsprü ^ ^ z _e B _f * if it is by means of a spray gun, or in powder form. _s by sputtering "'Thus, all cables are of the pressed material gleiehmäSif m ^ t the binder benetfeti As _flüssiges_Bindemittel canoe z _e B _# liquid resin are used, the IST dissolved liquid in the same amount, the Ilüssigtefeit to _f to the resin in solution to .kwzwfflm stalks _t about 2 o% commercial latronlauge as powdered binders may be used, "Ber G @ pulverized content of the molding composition of pure resin is about 8 - Io% betragene the material to be pressed can before or Nagh the addition of the binder -" are introduced into the mold it is advisable see _f briefly snap or shake the product brought into the press mold _e This results in an intimate interlocking of the single ropes of the fibrous material _s which is of great value for the cohesion of the finished pressed body »The direction of movement should only be vertical _? to prevent the content of the form from migrating horizontally «,

Pressing the Presgutes done in Heißpressverf anrenund can in a single operation carried out _e Ss, however, has proved to be advantageous, prior to the actual hot pressing a pre-compression at lower T _e mperature _g beispw _e .for normal Saumtemperatur vorzunenmen ₉ and lower pressure # By

Pre-pressing ^ with a bridge of £. - 5 kg / ca ^ is applied for about three minutes, the formation of coherent ©! Surfaces on the compact bswirkt® These surfaces may now m & ei an interruption of the Pr it sv or passage can susie will be refined S _{0 Φ} B additionally sprayed with the binder to ^. sufficient for a veneer curing to ersielen _e for GE "ringere claims satisfies u« U *. Also a spraying mrc Waeses · A very hard surface is made by spraying with a solution of

ο f eiieii =, and Io parts £ @ gärter in loo ropes What% r achieved ^ which is applied in an amount of o _f 2 kg / m ² surface © Such hardening will be effective up to su 2 nm_liefe, one less In general, the deep, urgent ^ i.e. more skin-shaped _g is achieved by spraying with the same amount - £ @ geis & ^ in the appropriate thinning «Previous spraying with" water deepens the iegefeoa.-Oberfläohein hardener (5-lo parts In 100 parts of water) achieved "The veneers can also be applied to the surfaces of the pressed part during this interruption of the pressing process, using a binding agent, for example"

can be used «,

form according to patent (application _β · ... ·· »·. ·)" Press form for the 'production of plates from loekerem material' in Eatenpresseii ¹ * ^^^ same! Page) .κ * This press form is a ^ spreading form trains ge "and consists beispw. two iiiein> saioer versehiebbaren ^ sic] each other leading. _f metal frame ^ dle by springs and stoppers in the filling j be held ^ stJicher position. _s that the two frame only isen> g ^ ubereinan < 3, take but _t during the pressing operation against the _Pe the pressure ineinandersGnieben * launched in this EAHM ^ a ^ sjjid the pelvic plates loose and be captured by Vorjvelber them the light removability of JfeffSkplatten mactit the surfaces of the compact at the UN

ig do Joorh'Ugänlih After the surfaces of the pressed part have been sprayed (refined) and the veneers have been applied, the mold is closed again with the pressure plates and the hot pressing is carried out and the specific weight lama & m of the pellet * B _e i plates of 20 mm thickness ä ± Bg and specific weight of about o, - £ is, for example * the pressure is 13 to 1? kg / em ^ f _e mperature at about 13o to 14 ° © C _# and the pressing time is about 2o - $ 2 minutes'

Claims (1)

Claims Method according to claim 1, characterized in that wood chips or vegetable or technical fibers are added to the pressed material χ or more of these additives are added « 3m) Method according to claim 1 or 2 _g, characterized in that ¹ that the fibrous materials (white peat or similar substances) are predried before the addition of the binding agent « 4-e) Method according to any of claims 1 -'3. «Characterized ₉ that the fibrous materials are shocked or _{vibrated after being poured into the mold e} 5 *) Method according to each of claims 1-4 _? characterized in that the binding agent was added by spraying or dusting 6 ') Verfaliren of any of claims 1-5 * ₉ characterized in that the pressing is carried out in several stages with different mperaturen bridges and T _e, ζ .Β''with' a prepressing at a low bridge and low-2 _e mperature _f beispw " normal room temperature ₉ and the final compression at higher. Pressure and higher T _e mperature _e 7e) Method according to claim 6 _? characterized by the fact that between two pressing stages the surfaces of the pressed part with 5e water or an aqueous solution * "-" - - ^ to be sprayed * by using one of the same Manufacture of panels from Patent attorney Ernst Haigis telephone number Serial Act. Lsmao * H Postal check Konlo: Hanover Office No. 68928 Bank account · Commerz-und Privat-Bank, Bielefeld Bielefeld, the iUB «m§urt κ * C * 2o L ·} r Berstelli ett Htndx & tttGln »mär, tm fiaruäs & rpsm mrpreßi