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　　The material requirements of air ducts in the production process are quite particular. When the surface of the duct is made of aluminium foil, in order to ensure that the surface is not easily damaged, the material and thickness specified by the aluminium foil, the thickness of the aluminium foil and the composite duct specified by the surface reinforcement material are required.

　　其次，薄鋼法蘭通風(fēng)管道內(nèi)外面層與內(nèi)部保溫材料粘結(jié)牢固是保證復(fù)合材料的基本條件之一。超過一定面積的板缺陷，不僅影響管道的使用壽命，有時還會降低其保溫效果。因此，該缺陷不應(yīng)超過6‰，以實現(xiàn)材料在系統(tǒng)中的正常使用。

　　Secondly, the bond between the inner and outer layers of the thin steel flange ventilation pipeline and the internal insulation material is one of the basic conditions to ensure the composite material. Over a certain area of plate defects, not only affect the service life of the pipeline, sometimes also reduce its insulation effect. Therefore, the defect should not exceed 6, in order to achieve the normal use of materials in the system.

　　目前，非金屬管道材料發(fā)展迅速，品種較多。為保證使用安全，這些材料制成的風(fēng)道應(yīng)根據(jù)工程需要具有不燃或耐火B(yǎng)1級燃燒性能要求，其表層必須為不燃材料。根據(jù)我國多年的工程實踐和產(chǎn)品現(xiàn)狀，規(guī)定了熱敏膠帶和壓敏膠帶剝離強(qiáng)度試驗的小值和鋁箔厚度值。膠帶的寬度應(yīng)不小于50mm，防止使用膠帶不能滿足管壁密封強(qiáng)度和管道壽命。熱粘帶的優(yōu)點(diǎn)是依靠熱熔膠的粘合，只要不加熱，粘帶表面在室溫下固化，粘接強(qiáng)度強(qiáng)。

　　At present, non-metallic pipeline materials are developing rapidly and have many varieties. In order to ensure the safety of use, the ducts made of these materials should have non-combustible or refractory B1 level combustion performance requirements according to engineering requirements, and the surface must be non-combustible materials. According to the engineering practice and product status of our country for many years, the minimum peeling strength test value of thermal and pressure sensitive adhesive tapes and the thickness value of aluminum foil are defined. The width of the tape should be no less than 50 mm, so as to prevent the use of the tape from failing to meet the sealing strength of the pipe wall and the service life of the pipeline. The advantage of hot adhesive tape is that it depends on the bonding of hot melt adhesive. As long as it is not heated, the surface of adhesive tape solidifies at room temperature, and the bonding strength is strong.

　　只有在風(fēng)管加工過程中具備質(zhì)量保證，風(fēng)管才能發(fā)揮其作用，使客戶在使用時能夠達(dá)到預(yù)期的效果，真正滿意風(fēng)管的服務(wù)。

　　Only in the process of duct processing with quality assurance, duct can play its role, so that customers can achieve the desired results in use, truly satisfied with the service of duct.