Views: 6 Author: Site Editor Publish Time: 2021-04-08 Origin: Site
Polyurethane rigid foam is a material with a large amount of flexible deformation. It has strong resistance to external deformation. It is not prone to cracks under the action of external force, temperature deformation, dry and wet deformation, etc., effectively ensuring the stability and durability of the system.
T40 rigid foam polyurethane spraying machine
Polyurethane rigid foam construction tank body insulation spraying
When the attached main structure undergoes normal deformation, such as shrinkage, expansion, etc., the on-site molded polyurethane rigid foam insulation system is flexible and gradually changes layer by layer, and the stress is released layer by layer, so there will be no cracks or detachment. It can withstand the most severe local climate and its changes.
Whether it is high temperature or severe cold, it will not cause irreversible damage or deformation of the insulation system. The temperature of the outer surface of the external wall changes drastically up to 50 degrees. For example, a shower suddenly falls after a long period of exposure, or the shade is shaded after the exposure. When a temperature difference similar to the above occurs, the surface of the external wall will not be damaged.
Construction grassroots treatment
(1) Remove the base layer grease, floating ash, dust, and base layer protrusions and other debris, if there are high and low stubbles, and the flatness of the base layer cannot meet the requirements, mortar should be used for leveling. Check that the slope of the base layer should meet the design requirements, the riser should be fixed and firm without shaking, and the parapet wall and other parts should meet the design requirements. Waterproof construction of roof detail polyurethane coating film
(2) For the protruding parts such as roof drains and roof pipes, polyurethane waterproof coating should be used for waterproof treatment. The coating should be stirred evenly before construction and the thickness should be uniform.
Construction The construction process can be divided into three paintings:
The amount of brushing in one pass should be 0.8~1.0㎏/㎡. After one layer of coating is cured, apply the second layer of polyurethane waterproof coating. The two brushing directions should be perpendicular to each other, and the amount of brushing for the third layer should be 0.3~0.5. ㎏/㎡ is appropriate. When the coating film is completely cured, a concealed acceptance should be carried out, and a closed water test of no less than 24h should be done. After the concealed acceptance is qualified, the rigid foam polyurethane insulation and waterproof construction can be carried out.
Convenient construction. The construction of the polyurethane rigid foam insulation project on site is a mechanized operation, with fast construction speed and high efficiency, which is unmatched by other insulation operations. Polyurethane construction has a strong adaptability to the shape of the building, especially for the insulation of the complex parts of the building structure.
Polyurethane foaming process, foam shrinkage, crispy, too soft, heartburn, cracking, smoke and other problems, how to analyze what causes.Polyurethane foaming process by the construction conditions, foaming equipment, construction technology and the impact of environmental temperature, there will be
The common ones are high pressure spraying, polyurethane spraying, hybrid spraying, and polyurea spraying. The construction industry usually uses high pressure sprayers, mostly for industrial production.High-pressure polyurethane spraying machine types:1, from the material of the spraying material i
Polyurethane foaming machine began to appear in foreign countries, with the ease of use and high efficiency by the production industry, and to be widely promoted and used. The polyurethane foaming machine directly determines the quality of the foam produced, even if the quality of the blowing agent
On April 12, CNMC-E3 polyurethane spraying machine was loaded in the industrial park and will be exported to France soon.CNMC-E3 polyurethane spraying machine is widely used in industrial maintenance, tunnel, subway, waterproofing of road base, production of foam film and television props, pipeline
Due to the demand of the production scale, many manufacturers will choose small polyurethane infusion foaming machine to help products for foaming, which can be more convenient for bonding, and in the subsequent use of the process is also more convenient for maintenance. So what are the characterist
Spring Festival does not close, for this year's Spring Festival holiday, CNMC Machinery's Ali International Station store got a good start. We started the year with a salesman, we harvested more than 1.4 million in sales, of which the largest single order reached one million.CNMC Machinery is a subs
Polyurethane sprayers may require special coatings and construction parameters when working with certain specialized types of wood. The following are some common types of specialty woods:
In 2023, Rencheng District, Jining City, adhering to Xi Jinping's new era of socialism with Chinese characteristics as the guide, the high quality of investment and high level of opening up as the most direct and effective way to achieve high-quality development of the economy to grasp, go all out t
All family members.According to the provisions of the national statutory holidays, and in conjunction with the actual situation of the company, the New Year's Day holiday in 2024 is now made as follows.First, December 30th (this Saturday) to January 1st (next Monday) holiday, a total of 3 days.Janua
Spray gun: Responsible for ejecting the polyurethane coating, typically consisting of a nozzle, nozzle cap, nozzle throat, and trigger.Coating chamber: Provides a sealed environment to maintain the stability of the spraying process, preventing external impurities from entering. It is usually made of