English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

This paper deals with the problems of wood dust production during the sawing of two-side-laminated particleboards. It points out the dangerous impact of wood dust particles on people´s health and other unfavourable influences in the working environment. The aim of the paper was to introduce the research of dustiness, to determine the content of fine particles in sawdust and analyse the influence of feed rate on the granularity of sawdust created in the process of sawing two-side-laminated particleboards using modern circular saw. Sawing parameters were chosen for the optimal cutting speed of the circular-saw blade Pilana TFZL, vc = 84.3 m·s-1 and for three feed rates of a workpiece with the cut vf = 10, 15, 20 m·min-1. The collected sawdust particles were subjected to the particle-size analysis under exactly defined conditions by sieving and the basic granulometric analysis was made. Sieve analysis gives only a general particle-size distribution without any information considering the mass concentration of fine fraction of dust. Therefore, laser particle sizer Analysette 22 Microtec Plus was used to specify details concerning the size of dust particles smaller than 63 μm, which were collected in the bottom collector.U radu se analiziraju problemi nastajanja drvne prašine tijekom piljenje ploča iverica obostrano obloženih laminatom. Upozorava se na štetan utjecaj čestica drvne prašine na zdravlje ljudi i na druge nepovoljne utjecaje u radnoj okolini. Cilj rada bio je predstaviti istraživanja o onečišćenju radnog prostora drvnom prašinom, odrediti sadržaj sitnih čestica u piljevini te analizirati utjecaj posmične brzine na granulometrijski sastav piljevine nastale tijekom piljenja ploča iverica obostrano obloženih laminatom na suvremenoj kružnoj pili. Parametri piljenja izabrani su za optimalnu brzinu rezanja lista kružne pile Pilana TFL, vc = 84,3 m·s-1, i za tri posmične brzine obratka vf = 10, 15 i 20 m·min-1. Analizirane su veličine čestica piljevine pri točno određenim uvjetima prosijavanja te je određen granulometrijski sastav piljevine. Analiza piljevine prosijavanjem daje samo opću raspodjelu veličina čestica, bez informacije o masenoj koncentraciji frakcija fine drvne prašine. Stoga je za detaljnije određivanje veličina čestica drvne prašine manjih od 63 μm koje su prikupljene u kolektoru na dnu sita primjenjen laserski uređaj Analysette 22 Microtec Plus

Influence of Feed Speed on the Content of Fine Dust during Cutting of Two-Side-Laminated Particleboards