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Views: 4 Author: Site Editor Publish Time: 2021-07-31 Origin: Site
Timing refers to the specified time, and quantitative refers to the number of specifications. The fixed quantitative polyurethane spraying machine sprays the specified amount of polyurethane within the specified time. The program control of the pouring equipment is very accurate, continuous and rapid construction.
The multi-station construction efficiency of the timing and quantitative polyurethane spraying machine is high
Timing and quantitative polyurethane spraying machine has a wide range of uses, such as polyurethane spraying between layers of heat insulation pipes, the middle layer of anti-theft doors, aluminum alloy profiles, heat insulation pipes, etc.
The dimensional stability of polyurethane thermal insulation spray foam refers to the irreversible dimensional changes in three-dimensional directions perpendicular to each other after the material is placed in a specific environment for a certain period of time. The magnitude of this change is related to the type and structure of rigid polyurethane foam. Density, molding conditions and other factors related to the thermal conductivity of the polyurethane rigid foam at the initial stage of molding have low thermal conductivity. After 24 hours, as the aging time increases, the cell structure gradually stabilizes, and its thermal conductivity also tends to stabilize. The reason is that in the initial stage of molding, the air pressure in the bubbles and the content of blowing agent are relatively high. As the aging time increases, the thermal conductivity value tends to stabilize. Due to gas diffusion, polyurethane foams. The bubble structure gradually stabilized.
The application of fixed-quantity polyurethane spraying machine in the field of building energy saving is limited, mainly because its cost is higher than the cost of EPS and XPS insulation materials. The rigid foam polyurethane insulation material synthesized by isovalerate, triethanolamine, polyether, polyol and various additives was studied, and the influence of each reaction component on the performance of the insulation material was explored, thereby forming a better formula. Reduce synthesis costs.
On May 14, Zhu Ruixian, Secretary of the Party Working Committee and Director of the Management Committee of Jining Economic Development Zone, Xu Gang, member of the Economic Development Zone Party Working Committee and Deputy Director of the Management Committee, and other leaders visited Shandong
Recently, Jining Bureau of Industry and Information Technology announced the list of municipal-level "Specialization, refinement, specialization, novelty" small and medium-sized enterprises in 2022. Shandong Hightop Group passed the expert review and was selected as a "Specialization, refinement, sp
All family members:According to the national statutory holiday regulations and the actual situation of the company, the following arrangements are now made for the May 1st Labor Day holiday: 1. April 30th ( Saturday ) - May 4th ( Wednesday ) , a total of 5 days off ;April 23 morning (Saturday), Apri
In 2021, despite the more complicated international situation, with the spillover of China's manufacturing capabilities and comprehensive national strength, the scale of my country's cross-border e-commerce will reach 1.98 trillion yuan, out of a high growth rate of 15%, and usher in a historical di
The electric sprayer has the advantages of simple structure, convenient operation, few failures, easy maintenance, low price, stable pressure, long operation time, wide application range and so on. There are many herbicide formulations, and different formulations have different formulation methods.
1. Unique impermeability:Rigid foam is a dense microcellular foam with a closed cell rate of more than 92% and a smooth self-skin. It is an excellent anti-seepage material.The rigid foam layer has no joints and is completely impermeable to water, which fundamentally eliminates the possibility of roo
Problems that should be paid attention to before and after use of polyurea spraying equipment:First of all, after spraying every day, or when changing the variety of spraying materials, the residual materials of spraying equipment and conveying pipelines should be removed, preferably once a day. The
As the name implies, with the rapid development of China's building energy saving market, polyurethane spraying equipment has been widely used in the field of building insulation and waterproofing, and the demand is increasing.
With the pace of green and civilized city construction, more and more attention is paid to the treatment and disinfection of domestic waste.1. The methods of garbage disposal, especially the methods of sorting and reusing garbage, have also appeared one after another, and gradually entered the ranks
Polyurea spray material is a new type of polymer material. Since this material has many different forms, and different forms of polyurea sprayers have many different characteristics, polyurea spray materials are widely used in contemporary society and industrial production.As the thermal insulation
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