Downstream processing of rubberwood
Material type:
TextPublication details: Wood News 1993Description: 16-18Subject(s): Summary: The primary processing of rubber wood involves chemical impregnation for obtaining resistance to insect attack and fungi, and to improve the quality, durability and physical properties. The value addition of the treated wood occures with the manufacturing into different products. One of the limiting factor for its use in the length/size of the treated wood is comparatively less and is about a meter length. To improve the efficiency of operation of a unit, the small section and cut pieces are to be used for making products. The various processes used for this are End Joining, Glue-Lamination etc. The end joining or finger jointing as it is commercially known in the process of cutting of profiles on the ends of the wood to be joined. The profiled ends are glued together to form long strips. The end joining can also be done in face finger joint or butt joint method, in which conical finger profiles are used to improve the strength of the joints. Glue lamination is the process for obtaining larger width products. Strips of treated wood are planed to obtain matching surfaces and suitable glue is applied and strips are laminated to form panels and boards. Special machines called Composing machines are used for commercial production of larger width panels frames etc. Glue applied to the wood is cured either by passing the panels through a heating zone or using high frequency. Table tops, flooring door and window shutters, door and window frames, partitions are the products that can be made using larger pieces. Where as toys, trays, chopping boards, magazin racks, handles, bathroom fittings etc are products that can be made from short length pieces.
| Item type | Current library | Vol info | Status | |
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Bibliography RLWO
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RRII Library | Volume 3, Issue 3 | Bibliography |
The primary processing of rubber wood involves chemical impregnation for obtaining resistance to insect attack and fungi, and to improve the quality, durability and physical properties. The value addition of the treated wood occures with the manufacturing into different products. One of the limiting factor for its use in the length/size of the treated wood is comparatively less and is about a meter length. To improve the efficiency of operation of a unit, the small section and cut pieces are to be used for making products. The various processes used for this are End Joining, Glue-Lamination etc. The end joining or finger jointing as it is commercially known in the process of cutting of profiles on the ends of the wood to be joined. The profiled ends are glued together to form long strips. The end joining can also be done in face finger joint or butt joint method, in which conical finger profiles are used to improve the strength of the joints. Glue lamination is the process for obtaining larger width products. Strips of treated wood are planed to obtain matching surfaces and suitable glue is applied and strips are laminated to form panels and boards. Special machines called Composing machines are used for commercial production of larger width panels frames etc. Glue applied to the wood is cured either by passing the panels through a heating zone or using high frequency. Table tops, flooring door and window shutters, door and window frames, partitions are the products that can be made using larger pieces. Where as toys, trays, chopping boards, magazin racks, handles, bathroom fittings etc are products that can be made from short length pieces.
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