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 Posted: Sat 21:33, 07 May 2011 Post subject: imagenes ed hardy Continuous printing for packagin |
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Continuous printing for packaging design and calculation of iron paint drying room
Small, simple equipment, easy maintenance,[link widoczny dla zalogowanych], suitable for small and medium Indian Iron Works. However, its production environment is poor, workers, labor-intensive, low thermal efficiency. Printing Chamber mechanical coal-fired high degree of automation compared with the hand-burning type of high thermal efficiency, it will be the development direction of Printing Chamber. 12 Indian Railway Indian Railway drying process is divided into three processes: white-out,[link widoczny dla zalogowanych], printing and coating. Among them, the white-white material is generally available D; printing ink is generally the use of materials; polishing the main ingredient is acrylic, pure acid. Printing Chamber is divided into four segments based on heating. Indian iron heating temperature and temperature changes as shown below. ▲ preheating temperature ℃ heating temperature cooling section of the heating section Guhua time / min Figure 1, heating temperature and Indian Railway is the first paragraph of the temperature curve of preheating. At this stage is through the exhaust air from the drying room to warm drying room first entered the Indian railways and the stent. Exhaust gas temperature is about 100oC, drying room temperature reaches the end of warm-up section of 140oC. Indian iron and so support will be in the preheating section 0 ℃ rise 80cC. The second stage is heated. This section has 220oC hot air supply port. Oven temperature from 140oC to rise to 220oC. In this case, the Indian iron and stand from 80cc to rise to 180oC. The third stage is the curing section. Oven temperature and temperature were controlled at Indian Iron 220oC and 180oC. In this case, runs 10 minutes. This section has a slow Soviet. Fourth and cooling section. During this pass into the cold air to lower the temperature of Indian iron and stand. Down to room temperature to complete the whole process. 2 thin iron thermal drying process characteristics and methods of computation as the sheet material to be dried. Coating evenly on the plate. Heat mainly iron absorption. Heated material is Bi = a · 1 / h when the Bi0.1 when Where 0 【to convective heat transfer coefficients. Mainly with the medium speed. In the Indian Railway paint drying room,[link widoczny dla zalogowanych], usually the lower medium velocity. Is generally 2.0-6.0Nm / s. In this case the convective heat transfer coefficient is small; l for the Indian iron thickness,[link widoczny dla zalogowanych], typically 0.2-0.5mm; the thermal conductivity. Larger thermal conductivity of iron. Therefore, in this condition Bi0.1. This problem is a thin sheet heat situation. According to the formula of thin wood heating Star Park, you can calculate the heating time. Thus designed to calculate the size of the drying room. 21 2.1.1 Oven drying time to determine the length of the formula to determine the drying time Star Park. T = g · · In [(A t) / (-t)] / (a · f) where g: material quality kg: Thermal conductivity of iron w / m · cc0 【: dry medium heat transfer coefficient kj / mhoCf: heating the material surface cct: drying medium temperature cct: the material surface temperature ℃ t: start temperature ℃ material type can be calculated by the heating and cooling time of each segment. 2.1.2 Determination of the drying speed of the material in the sleeve roller chain running. According to the following formula to determine the speed of the material. w = p'1 / 60 (1): Material speed m / rainP: Production Photo / hl: sleeve roller chain length of the pitch mm2.1.3 Printing Chamber to determine the length of each segment can be run determine the speed and time. The following equation L = e0 · T where c0 and speed of the material, respectively, and heating time. 22 Oven drying room section to determine the size of the section size of each part of the section under the drying room height and width,[link widoczny dla zalogowanych], and draw. 2.2.1 Oven determine the section height h = h1 + h2 + h3 + h4 + h5 where h: total height of drying room mmh1: base height, usually 140-170mmh2: orbital altitude, typically 50 - 70mmh: a high roller, roller type according to selection mmh: bracket height, typically 1000-1200mmh: top of the surplus, usually the inner section 100mm2.2.2 Oven Width 1 = 11 +212 where l: the inside drying room section width mml: iron width mml2: both sides of the surplus, generally 300-400mm Oven selected cross-section diagram see Figure 2. / Insulating layer 1 』- I Huan rebel II I - Factory - ~ 1 stent + - for the wind pipe - wide - a shore base『 track roller drying room section {Figure 2 Figure 3. Summarized under the Indian Railway drying process requirements and thermal characteristics of thin materials using Star Park the calculation of heating and cooling design of drying room drying room size and the actual size is very close, showing that the method is feasible for the design of Printing Chamber provides a way.
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