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聚氨酯保温钢管对生产环境的要求

来源:http://www.sdhpgy.com 日期:2020-04-23 发布人:admin
  1.风系数:喷涂时风速应小于5m /s。由于风速超过5m /s,反应产生的热量会被吹走,影响聚氨酯泡沫的快速发泡反应,使产品表面易碎。同时,由于喷涂发泡机会将原料混合,使喷涂处于雾化状态,如风速过大,会将雾化的颗粒吹走,增加了原料的损耗,污染了环境。
  1. Wind coefficient: the wind speed during spraying shall be less than 5m / s. Because the wind speed exceeds 5m /s, the heat generated by the reaction will be blown away, which will affect the rapid foaming reaction of the polyurethane foam and make the surface of the product fragile. At the same time, because the spraying foaming opportunity mixes the raw materials, the spraying is in the atomization state. If the wind speed is too high, the atomized particles will be blown away, which increases the loss of raw materials and pollutes the environment.
  2.温度因素:喷涂时,被喷涂基材的现场环境温度和表面温度应在15℃至35℃之间。温度过低时,聚氨酯泡沫与基体的附着力降低,喷涂硬质泡沫制品的密度明显增大。如果温度过高,发泡剂损失太大,不经济。
聚氨酯保温钢管厂家
  2. Temperature factor: during spraying, the on-site ambient temperature and surface temperature of the sprayed substrate shall be between 15 ℃ and 35 ℃. When the temperature is too low, the adhesion between polyurethane foam and matrix decreases, and the density of rigid foam products is increased obviously. If the temperature is too high, the loss of foaming agent is too large and uneconomical.
  生产现场Pu保温钢管
  Pu insulated steel pipe at production site
  3.底物表面因子:聚氨酯硬泡是异氰酸酯与聚醚双组分混合反应生成的聚合物产品。其中,异氰酸酯组分易与水反应生成尿素。因此,要求喷涂的基材表面清洁干燥,无锈蚀、无灰尘、无污染、无潮气。如果有露珠或霜冻,应将其除去并晾干。
  3. Substrate surface factor: polyurethane rigid foam is a polymer product produced by the mixed reaction of isocyanate and polyether. Among them, isocyanate is easy to react with water to form urea. Therefore, the surface of spraying base material is required to be clean and dry without rust, dust, pollution and moisture. If there is dew or frost, it should be removed and dried.
  聚氨酯泡沫保温管,施工时在某些情况下无法逆转,聚氨酯泡沫保温管安装要使用正确的方法,当有一个小错误的言语不能功能足以给他,这样多余的管道保温技术,他对未来发展趋势进行了分析,对国内经济更能带来很大的影响。
  The polyurethane foam insulation pipe can not be reversed in some cases during construction. The installation of polyurethane foam insulation pipe should use the correct method. When there is a small wrong language that can not function enough for him, such an excess pipe insulation technology, he analyzes the future development trend, and has a great impact on the domestic economy.
  以上是聚氨酯保温钢管厂家为大家介绍的相关内容,想要了解更多内容,欢迎访问网站:http://www.sdhpgy.com
  The above is the relevant content introduced by the polyurethane insulated steel pipe manufacturer. For more information, please visit the website: http://www.sdhpgy.com

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