Views:9 Author:Site Editor Publish Time: 2020-08-08 Origin:Site
![]() The polyurethane foaming machine is inseparable from the heat in operation, so how much influence does temperature have on the polyurethane foaming agent? The foaming machine is operated by heating. With heat, the blowing agent will evaporate to form foam. Heat comes from two aspects, one is the heat generated by chemical reactions, and the other is provided by the environment, the former is fixed and not affected by external factors. The heat provided by the environment changes with the change of the ambient temperature. The air temperature is very important for the polyurethane foaming machine. Experiments show that the amount of foaming at an ambient temperature of 15°C is 25% less than that at 25°C. On the other hand, it will form a layer. The layer is not completely foamed, or even without the hard skin of the foam, which increases the amount of foam injected and increases the cost of foam production. Therefore, the environmental temperature factor must be strictly controlled during operation. |
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1. Site selection skills The location of the thermal insulation house of the breeding farm should be a place with a leeward wind and sunny, high terrain and dry soil. 2. Alternative insulation materials for the insulation room of the farmExtruded polystyrene foam (extruded board), molded polystyr
What are the classifications of high-pressure mixing spraying machinery for thermal insulation materials1. The important role of the on-site polyurethane high-pressure mixed foam external wall insulation systemPolyurethane rigid foam external wall insulation system is a kind of external wall insulat
is mostly used in building boards and insulation walls, mainly for heat preservation and waterproofing. The equipment used to complete the polyurethane foaming process is a polyurethane high-pressure foaming machine.The overall layout of the polyurethane foaming machine fully considers the use of sp
For many new products and technologies, only those that have passed theoretical and practical tests are worth recommending. The same is true for polyurethane products. It is recommended that you weigh the relationship between price and value when purchasing polyurethane products. The self-discipline
Polyurea as a new type of environmentally friendly spraying Compared with traditional environmentally friendly coating technology, spraying polyurea elastomer technology has the following advantages:1. It does not contain catalyst, it cures quickly, and can be sprayed on any curved surface, inclined
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
In recent years, China has made innovations in wall insulation materials, especially civil engineering exterior wall insulation systems, exterior wall decoration fire protection systems, etc., and proposed the combination and selection of high-performance insulation materials, but they have achieved
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If it is idle for more than 1 month, the polyurethane foaming opportunity will be blocked and your equipment will be paralyzed. The isocyanate component in the black material system of the polyurethane foaming machine will crystallize if it does not flow for a long time. So what we have to do is to