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现阶段通风管道的材质是很关键的

发布人:http://www.qyyl789.com   发布时间:2017-09-21 16:01:46

通风管道制作过程中对材料的要求是相当有考究的,风管表面层为铝箔材质时,为确保表面层不易损坏,故对铝箔材质及厚度作出规定,并对铝箔与增强材料复合的风管表层的铝箔厚度作了规定。

The material requirements of ventilation pipe production process is quite exquisite, the wind pipe surface layer is an aluminum foil material, to ensure that the surface layer is not easy to damage, so the provisions of foil material and thickness, and the thickness of the aluminum foil and aluminum foil reinforced composite wind pipe surface has been specified.

其次,薄钢板法兰通山东通风管道道内、外表层和内部绝热材料粘接牢固,是保证复合材料的基本条件之一。超出一定面积的板材缺陷,不仅影响风管使用寿命,而且有时会降低其保温效果。所以缺陷不得大于6‰,以达到材料在系统中的正常使用。

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Second, the thin plate flange through the Shandong ventilation pipe, road, exterior and internal insulation materials firmly bonded, is to ensure that one of the basic conditions of composite materials. Beyond a certain area of plate defects, not only affect the service life of the wind pipe, and sometimes reduce its insulation effect. Therefore, the defects shall not exceed 6 per thousand, so as to achieve the normal use of materials in the system.

目前,非金属风管材料发展较快,品种较多,困其具有的特性和优点,应用也越来越广泛。为了保证使用中的安全,对这些材料制作的风管提出了应按工程的需要具有不燃或难燃B1级的燃烧性能要求,而其表面层必须为不燃材料。根据我国多年的工程应用实践与产品状况,规定了热敏胶带与压敏胶带的剥离强度试验低值与铝箔厚度值;要求胶带宽度不应小于50mm,防止使用的胶带不能满足管壁密封的强度和风管使用年限。热敏胶带的优点是依靠热熔粘接,只要不在加热,在常温下胶面是固化的,具有牢靠的粘接强度。

At present, non-metallic wind pipe materials have developed rapidly, and have more varieties, which have the characteristics and advantages, and are used more and more widely. In order to ensure the safety in use, the wind pipes made of these materials are required to meet the requirements of the project with non flammable or nonflammable B1 grade, while the surface layer must be non combustible material. According to the engineering practice and product status in China for many years, the provisions of the minimum value of the peel strength test of thermal tape and adhesive tape and foil thickness requirements; the tape width should not be less than 50mm, to prevent the tape can not be used to meet the sealing wall strength and wind period of use. Heat sensitive adhesive tape has the advantage of relying on hot melt bonding, as long as not heated, at room temperature, the plastic surface is solidified, and has a strong bond strength.

现阶段我国常用通风管道的种类及特点1、常用风管道的种类(1)镀锌钢板管道:机械咬口,角钢法兰连接,外包保温层及防潮。

At this stage, the types and characteristics of commonly used ventilation ducts in China 1. Types of commonly used wind pipes (1) galvanized steel pipe: mechanical bite, angle steel flange connection, outsourcing insulation layer and moisture-proof.


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