Abstract
This study was carried out to estimate drying schedules of Larix Leptolepis and Pinus koraiensis by oven-drying at $100^{\circ}C$ which aimed to elucidate the characteristics such as current moisture content, drying process. initial check, collapse, internal check and drying rate during drying following each board thickness (2, 3. 4, 5, 6cm). the results were summerized as follows; Current moisture content of each board showed a rapid drying curve with the decrease of board thickness. At 20% moisture content, the drying rate of Larix leptolepis was higher than that of Pinus koraiensis and the drying rate of boards was lower with the increase of board thickness. From the estimated drying schedules. the initial conditions of drying of Larix leptolepis had to be milder than those of Pinus koraiensis and the boards thickness of 5cm, 6cm had to be most mild conditions.
낙엽송과 잣나무의 판재두께별 건조특성(乾操特性)을 파악코져 $100^{\circ}C$에서 급속건조(急速乾燥)를 실시하여 건조중 함수율(含水率)과 건조경과(乾操經過), 건조속도(乾操速度), 초기할렬(初期割裂), collapse, 내부할렬(內部割裂)등의 건조결함(乾操缺陷)을 조사하여 추정건조(推定乾操)스케쥴을 작성한 결과는 다음과 같다. 건조시간별(乾操時間別) 건조중(乾操中) 함수율(含水率)은 판재두께가 얇을수록 급속한 곡선적 감소(減少)를 나타내었고 함수율(含水率) 20%에서 낙엽송의 건조속도(乾操速度)는 잣나무재보다 크고, 판재두께가 두꺼울수록 적었다. 추정건조(推定乾操)스케쥴을 작성한 결과 닥엽송은 잣나무재에 비해 건조조건(乾操條件)을 완화하게 해야 하고 판재 두께가 두꺼운 5cm, 6cm에서는 건조초기(乾操初期)의 조건(條件)을 가장 완화하게 해야 함을 알 수 있었다.