Construction Conditions of Clean Engineering
1.1.1. Wood materials and other materials that do not meet the requirements of clean standards are not used in clean rooms of clean engineering.
1.1.2. Clean engineering materials are stored in a clean and dry environment with enclosure facilities.
1.1.3. The thickness, specifications, dimensions and quality of the color steel plate for clean engineering must meet the design requirements or contract requirements, and the factory inspection report is provided. The production of the color steel plate must be carried out in accordance with the secondly designed jigsaw and the list of sizes and quantities. In the production process, according to the drawing number, the length of the ceiling plate should not exceed 5000 feet.
1.1.4 Clean engineering auxiliary materials, such as hardware standard parts, must meet the design requirements or contract requirements and have factory certificates. 1.1.5. The material and specification of the section steel for clean Engineering connection shall meet the design requirements, and low carbon steel shall be used with quality guarantee or inspection report.
1.1.6. The materials and specifications of aluminium alloy profiles for clean engineering shall conform to the design requirements or contract requirements, and have a factory certificate of qualification.
1.1.7. There are sufficient temporary storage sites for materials and for processing and semi-finished products of aluminium alloys in the clean engineering.
Construction Method of Clean Engineering
1.2.1. The dew-proof construction of glass windows. In the workshop, the room temperature is mostly about 22 degrees Celsius, while the corridor is between 18 and 28 degrees Celsius, which results in temperature difference. According to the calculation of thermal resistance and heat transfer of glass, there will be frost phenomenon (outside the window of the room), and the experience is the same, such as the browning of Zhuhai multi-storey. This phenomenon exists between the wire harvesting boards.
1.2.2. There are many wet processes in PCD process of waterproofing construction of partition wall in clean engineering, and the solution used in the production process is corrosive, which corrodes the color steel plate wall and affects the life of partition wall. Therefore, it is suggested that a cement foundation or a 50_wide civil structure with 80-100_high under the color steel plate partition wall should be designed for the partition wall in this workshop. It is specially made bricks, and then painted steel plate is made on them. If it is on the side of the purification workshop, Guangzhou Zijing specially designed and used profiles (big arc) to meet the requirements of the clean room. It is not on the side of the clean workshop that terrazzo and acid-resistant tiles are pasted on the top to ensure beautiful appearance.
1.2.3. There are many wet and corrosive PCD processes in the anti-corrosion construction of color steel plate wall of clean engineering. Corrosion of coloured steel sheets for partition walls in this kind of workshop often results in the replacement of coloured steel sheets after they are used for a short time. Guangzhou Zijing has done similar projects in the past. For workshops with corrosive articles, the conventional anticorrosion treatment of color steel plate walls is as follows:
A. Antiseptic cement spraying for wall surface of clean engineering;
B. Use acid and alkaline paint to brush the panel on the wall. (In this way, the life of the color steel plate can be prolonged by 5-6 years, and the normal use of stone markings is about 3 years, so replacement should be considered.)
1.2.4. Construction scheme of over-lifting and shrinking joints of color steel plate roof for clean Engineering The color steel plate ceiling is fixed on T-shaped aluminium on the top of lifting and shrinking joints, and on the other side is put on T-shaped aluminium.
Clean engineering construction scheme: