English

All work has risks. Big or small a risk can be avoided when we do things safely. We must know how to work, or to treat the material with minimal risk. So is the work of processing the clay. There is a risk that might arise either physical injury or danger due to the effects of the material itself. But ...

The process of making plywood many variations, but in principle use the sequence and procedures are relatively similar. The sequence of plywood manufacture according Massijaya (2006) is as follows: o Selection log Logs will be used as raw material for plywood is selected from the size, shape, and condition of the defects are still allowed. o Pretreatment on log Early ...

Clay used for the manufacture of ceramic objects there that can instantly be used and there is also a lack of appropriate meempunyai character. The nature of such mismatches is too sticky, too coarse, less plastic, high shrinkage, the results of fuel brittle, the color is too dark or bright, precocious, broke out when drying, and broke when burning. Problems ...

Finir-finir to glue plywood to be able to use a wide range of adhesives, for example: a) Based on the origin of the material, divided into: o Adhesive vegetable, such as soybeans, peanuts, cassava (tapioca) o Adhesives animal, eg casein (milk), fibrin, a protein, bone Ø Adhesives synthesis, for example, urea formaldehyde, phenol formaldehyde, melamine formaldehyde, resorcinol formaldehyde b) Based ...

This amber wood has a density ranging between 0:36 ~ 0.64 (Martawijaya et al, 1986) and has been used as components of musical instruments, furniture, pulp and paper, as well as industrial raw materials light aircraft (Surjokusumo 1992). However, the use of wood Damar not separate the normal wood and compressed wood, so wood ultrastructure research on wood press Damar ...

Pizzi (1994) suggested that UF adhesive polymer is the result of condensation reaction of formaldehyde with urea. Advantages of UF adhesives include water soluble, hard, non-flammable, good heat properties, colorless when hardened, and the price is cheap. Hiziroglu (2007) suggested some of the characteristics of the adhesive Urea-Formaldehyde (CH4 N20CH20) x among others: o Gravity: 1:27 o Solid content: 64.8% ...