現(xiàn)階段通風(fēng)管道的材質(zhì)是很關(guān)鍵的

發(fā)布人：http://rdhw.com.cn   發(fā)布時(shí)間：2017-09-21 16:01:46

通風(fēng)管道制作過程中對(duì)材料的要求是相當(dāng)有考究的，風(fēng)管表面層為鋁箔材質(zhì)時(shí)，為確保表面層不易損壞，故對(duì)鋁箔材質(zhì)及厚度作出規(guī)定，并對(duì)鋁箔與增強(qiáng)材料復(fù)合的風(fēng)管表層的鋁箔厚度作了規(guī)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，薄鋼板法蘭通山東通風(fēng)管道道內(nèi)、外表層和內(nèi)部絕熱材料粘接牢固，是保證復(fù)合材料的基本條件之一。超出一定面積的板材缺陷，不僅影響風(fēng)管使用壽命，而且有時(shí)會(huì)降低其保溫效果。所以缺陷不得大于6‰，以達(dá)到材料在系統(tǒng)中的正常使用。

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，非金屬風(fēng)管材料發(fā)展較快，品種較多，困其具有的特性和優(yōu)點(diǎn)，應(yīng)用也越來越廣泛。為了保證使用中的，對(duì)這些材料制作的風(fēng)管提出了應(yīng)按工程的需要具有不燃或難燃B1級(jí)的燃燒性能要求，而其表面層必須為不燃材料。根據(jù)我國多年的工程應(yīng)用實(shí)踐與產(chǎn)品狀況，規(guī)定了熱敏膠帶與壓敏膠帶的剝離強(qiáng)度試驗(yàn)低值與鋁箔厚度值;要求膠帶寬度不應(yīng)小于50mm，防止使用的膠帶不能滿足管壁密封的強(qiáng)度和風(fēng)管使用年限。熱敏膠帶的優(yōu)點(diǎn)是依靠熱熔粘接，只要不在加熱，在常溫下膠面是固化的，具有牢靠的粘接強(qiáng)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.

現(xiàn)階段我國常用通風(fēng)管道的種類及特點(diǎn)1、常用風(fēng)管道的種類(1)鍍鋅鋼板管道:機(jī)械咬口,角鋼法蘭連接,外包保溫層及防潮。

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.