{"id":2792,"date":"2018-10-13T05:49:50","date_gmt":"2018-10-13T05:49:50","guid":{"rendered":"https:\/\/www.mcctcarbide.com\/?p=2792"},"modified":"2018-10-13T05:49:50","modified_gmt":"2018-10-13T05:49:50","slug":"can-wood-be-welded-things-about-wood-welding-technology","status":"publish","type":"post","link":"https:\/\/www.mcctcarbide.com\/fr\/can-wood-be-welded-things-about-wood-welding-technology\/","title":{"rendered":"Le bois peut-il \u00eatre soud\u00e9? Des choses sur la technologie de soudage du bois"},"content":{"rendered":"

\u00c0 quoi pouvez-vous penser en mati\u00e8re de soudage?<\/h4>\n

C\u0153ur de feu \u00e9claboussant? Temp\u00e9rature \u00e9lev\u00e9e et chaleur \u00e9lev\u00e9e? Yeux clignotants?<\/p>\n

Quoi que vous pensiez, vous ne penserez probablement pas \u00e0 nos meubles de toute fa\u00e7on, ils ne seront pas associ\u00e9s au bois. Pourquoi? Parce que vous vous sentirez comme du bois soud\u00e9, il ne s'agit pas de \u00abbr\u00fbler du feu\u00bb, car notre bois pr\u00e9f\u00e9r\u00e9 craint le plus la chaleur et le feu.<\/p>\n

D'accord! Vous avez raison, si cela ressemble \u00e0 une technique de soudage traditionnelle, tenant un chalumeau et jetant entre deux morceaux de bois, je crains de devoir appeler le 119 pour un feu.<\/p>\n

Cependant, le soudage que nous allons dire aujourd'hui est effectivement appliqu\u00e9 au raccordement des produits en bois, mais contrairement au soudage au fer classique, il n\u00e9cessite l'introduction de sources de chaleur ultra-\u00e9lev\u00e9es. Quelle est la technologie myst\u00e9rieuse? Ne vous inqui\u00e9tez pas, cet article vous pr\u00e9sente la \u00abtechnologie de soudage du bois \u00e0 barre ronde\u00bb.<\/p>\n

La m\u00e9thode actuelle de raccordement des produits en bois n'est-elle pas bonne?<\/h4>\n

bien s\u00fbr que non! La technologie de production et d\u2019assemblage des meubles en bois massif a \u00e9volu\u00e9 vers la maturit\u00e9 et la stabilit\u00e9, mais il reste encore beaucoup \u00e0 faire.<\/p>\n

Le processus traditionnel de production de joints de tantale est compliqu\u00e9 et la perte de bois est grave; les pi\u00e8ces m\u00e9talliques dans les pi\u00e8ces m\u00e9talliques sont sujettes aux taches de rouille ou \u00e0 la corrosion et affectent la r\u00e9sistance du joint; les tiges rondes sont jointes et doivent \u00eatre enduites dans l'al\u00e9sage ou sur le radeau lors de l'assemblage. La colle, il existe donc une situation dans laquelle la colle est facile \u00e0 contaminer la surface non assembl\u00e9e, et certains polluants sont lib\u00e9r\u00e9s pendant la production et l'utilisation.<\/p>\n

La technologie de soudage du bois \u00e0 barres rondes dont nous parlons est une nouvelle technologie mise au point en Europe \u00e0 la fin du XXe si\u00e8cle et au d\u00e9but du XXIe si\u00e8cle. La barre ronde est dans le trou rond pr\u00e9-perc\u00e9 (le diam\u00e8tre du trou est plus grand que le diam\u00e8tre de la barre ronde). L\u00e9g\u00e8re petite) rotation \u00e0 grande vitesse sans aucun adh\u00e9sif ou autre mat\u00e9riau, fix\u00e9e dans le substrat de bois perfor\u00e9 ou relativement fixe, est une technologie d'assemblage momentan\u00e9, \u00e9conomique, respectueuse de l'environnement et prometteuse.<\/p>\n

En fin de compte, quelle est la barre ronde qui fait tourner le bois?<\/h4>\n

Comment d\u00e9finir cette technologie? Des sp\u00e9cialistes du secteur la d\u00e9crivent comme suit: sans ajouter d\u2019adh\u00e9sif, la barre ronde rotative \u00e0 grande vitesse est li\u00e9e par friction au support en bois en un instant (2 \u00e0 4 secondes) et pr\u00e9sente une certaine technologie de connexion, appel\u00e9e barre ronde. Rotation du bois.<\/p>\n

 <\/p>\n

Se concentrer sur la "rotation \u00e0 grande vitesse", le "frottement", "l'engagement instantan\u00e9" est sans aucun doute les caract\u00e9ristiques de la technologie, mais ne comprend toujours pas: pourquoi pouvons-nous r\u00e9aliser le soi-disant "soudage"?<\/p>\n

Le principe est le suivant:<\/p>\n

La barre ronde tourne \u00e0 grande vitesse dans la pupille. Pendant l'interface de contact, le\"\"La barre ronde et la paroi interne de l'al\u00e9sage sont frott\u00e9es pour g\u00e9n\u00e9rer une temp\u00e9rature \u00e9lev\u00e9e. Le polym\u00e8re de haut poids mol\u00e9culaire (principalement la lignine et un peu d'h\u00e9micellulose) dans la r\u00e9gion amorphe de la fibre de bois est ramolli. En fondant, les fibres forment un r\u00e9seau enchev\u00eatr\u00e9 qui est fondu dans le polym\u00e8re du bois en fusion. Lorsque la barre ronde cesse de tourner, elle refroidit et se solidifie pour former une bande soud\u00e9e et est connect\u00e9e ensemble.<\/p>\n

 <\/p>\n

On voit sur la figure ci-dessus que les soudures microscopiques des bandes soud\u00e9es sont entrelac\u00e9es et connect\u00e9es. Lorsque le soudage par friction du bois est termin\u00e9, la \u00abnouvelle interface\u00bb lignine et h\u00e9micellulose (furfural, xylane) est transform\u00e9e en une r\u00e9action chimique de polym\u00e9risation et de r\u00e9ticulation. Par cons\u00e9quent, lorsque la barre ronde cesse de tourner, afin de garantir une certaine r\u00e9sistance des joints, il est n\u00e9cessaire de maintenir une certaine pression instantan\u00e9e.<\/p>","protected":false},"excerpt":{"rendered":"

\u00c0 quoi pouvez-vous penser en mati\u00e8re de soudage? C\u0153ur de feu \u00e9claboussant? Temp\u00e9rature \u00e9lev\u00e9e et chaleur \u00e9lev\u00e9e? Yeux clignotants? Quoi que vous pensiez, vous ne penserez probablement pas de toute fa\u00e7on \u00e0 nos meubles, ils ne seront pas associ\u00e9s non plus\u2026<\/p>","protected":false},"author":1,"featured_media":2793,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[8],"tags":[],"yoast_head":"\nCan wood be welded? 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