method – Wacker process
현재 흔히 이용되고 있는 Wacker process 방법은 ethylene의 부분 산화 반응으로 아래와 같은 반응식을 따른다.
C2H4+2CaCl2+H2O -> CH3CHO+2HCl+2CaCl2
2CaCl2+2HCl+1/2O2 -> 2CaCl2+H2O
반응물로 이용되는 ethylene은 원료비가 비싸고, 공정 과정에서 반응기 부
Throughput time = 30min
Process velocity = 30/
Cycle time = 10min
Capacity = 6unit/hr
Utilization = ① 10/10 = 1 ② 7/10
③ 1/10 ④ 5/10
⑤ 5/11 ⑥ 2/11
① The weight scale tests = 10 min ② weigh and record each bucket
= 7 min x 300 buckets = 2100 min ③ time to wrap each roll = 9000 Roll / 20 Roll =
Six Sigma
A business management strategy to improve the quality of process outputs by identifying and removing the causes of defects (errors)and variation in manufacturing and business process.
To increase capacity for growth
To set the stage for a fundamental change
To set in motion a process
top layer
A. use to thermal pressing machine for coating
Reliability of the methods
Our product processing techniques are based on exiting patent:
Fig2. ‘Anti - insect wall paper’
4. Processing
1. Functional substance(Adhesive) manufacturing
Fig3. Anti-insect adhesive manufacturing process
1) Copolymerization of vinyl acetate and Butyl acrylate
2. Main discourse
2.1 highrises building builds through some process.
Good new construction method of constructions and systematic construction order are required in plan as building which cause particular condition that is different from universal condition preservation and administration side design and space-time in general building and with use.
In highrise building systematic and basic