of products made by sectioning off extrusions. Source: Courtesy of Kaiser Aluminum.
Types of Extrusion
Figure 15.3 Types of extrusion: (a) indirect; (b) hydrostatic; (c) lateral;
Process Variables in Direct Extrusion
Figure 15.4 Process variables in direct extrusion. The die angle, reduction in cross-section, extrusion speed, billet temperature, and lubrication all affect the extrusion pressure.
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Coolon
Developed by Kolon
Good moisture absorbency
Excellent excretion of moisture→ fast drying
Use of point touch method
→ not tight and comfortable
Aero Cool
Excellent absorbency and excretion of moisture
Special cross section controlling technique used
Formed with cross-section that looks like Clover
Fast evaporation of moisture
Soft hand and colorful appearance
The sun shines brightly on the classic facade of the main library at Fifth Avenue and 42nd Street. In the adjacent park area, pretty hustlers and drug peddlers go about their business.
FRONT STEPS
A few people lounge on the steps flanked by the familiar stone lions.
INT. MAIN READING ROOM - DAY
People are dotted throughout the room sitting at the long oak tables polished by decades of use. Readin
Ⅰ. 서 론
우리가 알고 있는 근육의 일반적인 기능은 신체운동, 자세유지, 호흡, 혈액순환, 음식물이동, 체열생산 등의 기능으로 인체의 몸에서 중요한 역할을 한다.
근육(muscle)은 신경 자극에 의하여 수축(contract)과 이완(relax)을 할 수 있는 특수한 성질을 가진 구조물로서 우리 몸의 여러 곳에서 볼
Water-soluble material-shaving aid material
Molecular weights 에 따라Liquid 또는 low-melting solid 상태로 존재
Physical Properties
Tg= -67oC
Low toxicity
Non-Toxic
의약품, 스킨로션 등
기계적 성질이 안 좋아서 다른 고분자나 이온성 물질과 blend 또는 합성하여 사용
Glass Transition Phenomena
액체를 냉각할 때 물질 고유의 온도