For materials with high temperature and humidity requirements, it is very important to do a good job in the regulation and control of temperature and humidity, to prevent heat in the high temperature season, to prevent moisture and mildew in the rainy season, and to prevent freezing and heat preservation in the cold season. The stacked materials should be checked frequently, mastered and found at any time, and remedial measures should be taken actively. In general, mechanical moulds are not used for lending, so as not to affect the normal work. If moulds need to be lent out, they can only be used with the instructions of the supervisor (chairman, chairman). Finished and semi-finished products must be placed in the designated area and clearly marked. The raw materials that have been taken out for use should also be kept by special personnel to avoid loss and other problems.
The highlight of the 2021 Guangzhou Air net Exhibition is the invitation of Academician of the Chinese Academy of Engineering, winner of the Medal of the Republic, Academician Zhong Nanshan, chairman of the China Indoor Air purification Brand Cluster, Chairman of the Advisory Group of the Brand Evaluation Technical Committee of the International Organization for Standardization, chairman of the China Association for the Promotion of Brand Construction, former director of the National Standards Commission, Liu Jun, deputy director of the State Administration of quality Supervision, Inspection and Quarantine, visited the exhibition on July 31. Listen to the introduction of the products from various exhibitors, “Exhibition” and “View” push the exhibition site to the most exciting part.
Polyurethane thermal insulation steel pipe, large diameter polyurethane thermal insulation pipe, thermal supervisor polyurethane thermal insulation steel pipe, directly buried thermal insulation pipe is also called prefabricated thermal insulation pipe: plastic sheathed steel insulation pipe (high density polyethylene direct buried insulation pipe) and steel sleeve steel insulation pipe (high temperature steam insulation pipe). Steel sleeve steel insulation pipe is made of high density polyethylene outer casing, polyurethane foam insulation layer and internal working steel pipe, or the temperature layer is changed to aerogel insulation felt plus polyurethane high pressure foaming composite scheme. Steel sheathed steel insulation pipe is composed of external steel pipe plus anti-corrosion steel pipe, polyurethane foam insulation layer and internal working steel pipe or aerogel insulation felt plus polyurethane high pressure foaming composite scheme.
Collision and throwing are prohibited. Direct contact with flame should be avoided in the insulation layer and anti-corrosion coating. Please follow the following procedure for pipe trench excavation-base treatment (drainage, sand cushion)-lower pipe-steel pipe welding-inspection (water pressure)-installation (pressure test)-foaming-sealing foam hole, joint installation. The company may send personnel to the project site to carry out the heat preservation work of the joint, including the installation of the outer casing of the joint, the connection and sealing of the outer casing of the joint with the supervisor and the foaming work of the on-site joint, but does not include the welding of the steel pipe of the joint. (1) sleeve joint, in this way. The joint casing adopts polyethylene casing with the same material and density as the prefabricated thermal insulation pipe casing, and the heat shrinkable belt is used to connect and seal between the polyethylene joint casing and the main pipe. The watertightness of the joint. Then the joint foams are carried out in the foam holes on the joint bushings.
Ang Lee said that she and the personnel supervisor lived opposite the door. When Ang Lee came back from shopping, he happened to meet the personnel supervisor. The personnel director saw the new bag on Ang Lee, casually said that the bag was really beautiful, and was ready to open the door and enter the room.
Joint installation Quantong Company can send personnel to the project site to carry out the heat preservation work of the joint, including the installation of the outer casing of the joint, the connection and sealing of the outer casing of the joint with the supervisor, and the foaming work of the on-site joint, but it does not include the welding of the steel pipe of the joint. The sleeve joint is made of the same material and density as the prefabricated heat preservation pipe casing. This approach is more advantageous. The core of the raw material of prefabricated directly buried insulation pipe is polyurethane, which will not be degraded when used in the inner layer, but can be used repeatedly.
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Jiangmen color steel tile thermal insulation material wholesale czxi3x construction tedious quality work target external wall thermal insulation and waterproof construction quality assurance system. The specific quality target of external thermal insulation and waterproof construction. Quality pre-control standard for each working procedure of external thermal insulation and waterproofing. Inspection method and acceptance evaluation of external thermal insulation and waterproof quality. When the total area of the Xinjiang market is 10,000 square meters, we account for 10%. Now it is more than 10,000 square meters a year, but we still work ten thousand square meters. He calculated that an ordinary storey building has an external wall area of about 10,000 square meters, that is to say, the total external wall market in Xinjiang is 10,000 square meters a year, which is equivalent to doing external wall insulation and waterproofing around the building. General supervision is the gatekeeper of on-site materials and engineering quality, but according to experience, Liu Qiang believes that at present, many supervisors are a mere formality. The person in charge of the Supervision Section of Urumqi Wall Reform Office said that at present, there are building thermal insulation and waterproof materials such as mortar with poor quality of fake benzene board in the market. The point type is lower than the public activity area size