Wood Conversion and Seasoning

Beschreibung

A-Levels Resistant Materials (Industrial and Commercial Practice) Karteikarten am Wood Conversion and Seasoning, erstellt von Alec Stevens am 10/05/2013.
Alec Stevens
Karteikarten von Alec Stevens, aktualisiert more than 1 year ago
Alec Stevens
Erstellt von Alec Stevens vor etwa 11 Jahre
65
1

Zusammenfassung der Ressource

Frage Antworten
Through and Through/Slash More often used for softwoods, slab sawn timber is simple to make and is relatively cheap with little waste. Unfortunately the planks may be prone to warping and cupping because of the arrangement of annual rings.
Quarter/Radial Sawn Higher quality and more expensive than slab sawing because of increased wastage. Cut to make the annual rings as short as possible and thus decrease the risk of twisting or cupping.
Natural Drying Allowed to dry in air. Ends are painted to prevent them drying out faster than rest of timber. Very cheap method, but no way of establishing water content so inconsistency in final product. Can take up to 5 years to season - one year per 25mm.
Kiln Drying Steam kills any bugs or insects in the timber and ensures the moisture content is consistent throughout wood. Far quicker than natural seasoning, and the moisture content can be controlled. However much more expensive.
Zusammenfassung anzeigen Zusammenfassung ausblenden

ähnlicher Inhalt

Material Processing and Forming
Alec Stevens
CAD/CAM
Alec Stevens
Mechanical, Heat and Chemical Joining Techniques
Alec Stevens
Material Removal
Alec Stevens
Heat Treatments
Alec Stevens
Modelling and Prototyping
Alec Stevens
Techniques for Mass Production
Alec Stevens
Scale of Production
Alec Stevens
Faults in Woods
Alec Stevens
GCSE Revision (Plastics detailed) AQA specification
T Andrews
Plastics
fampulli