通风管道制作前怎么挑选适宜的原材料？

发布人：http://www.sftfgd.com   发布时间：2022-05-26 18:36:10

济南通风管道制作前怎么挑选适宜的原材料

How to select suitable raw materials before making ventilation pipes in Jinan

一、选用的不锈钢板不得有悉数危害不锈钢板质量的裂纹、气泡、溶洞等缺点。

1、 The selected stainless steel plate shall not have all the defects such as cracks, bubbles and karst caves that endanger the quality of the stainless steel plate.

二、所选板材的表层应平坦、薄、对称，无裂纹、砂孔、伤痕、棱角、锈迹。

2、 The surface layer of the selected plate shall be flat, thin and symmetrical without cracks, sand holes, scars, edges and corners and rust.

三、选用的其他材料不得因缺点而降低制品的抗压强度或危及其运用效率。

3、 Other materials selected shall not reduce the compressive strength of products or endanger their application efficiency due to defects.

四、金属材料通风风管及备件的直径或外长答应过失小于等于300mm时为-1mm，大于300mm时为-2mm。环形法兰内径或矩形框法兰内缘的答应过失为±2mm，不平坦度不得逾越2mm。

4、 The diameter or diameter of metal material ventilation duct and spare parts is - 1mm when it is less than or equal to 300mm, and - 2mm when it is greater than 300mm. The allowable deviation of the inner diameter of the annular flange or the inner edge of the rectangular frame flange is ± 2mm, and the unevenness shall not exceed 2mm.

五、通风风管管层，面层应平坦，弧形对称，纵向接缝搭接。此外，牙齿的咬合也要紧密，总宽度要对称。焊接外观应检查无气孔、砂粒、夹渣、裂纹等缺点。

5、 The surface layer of ventilation duct shall be flat, arc-shaped and symmetrical, and the longitudinal joints shall be overlapped. In addition, the bite of teeth should be tight and the total width should be symmetrical. The welding appearance shall be free of defects such as pores, sand particles, slag inclusion and cracks.

六、风管系统软件中的全部直角角均应设置消音弯和镀锌铁板排水板。

6、 Silencing bends and galvanized iron drain plates shall be set at all right angles in the air duct system software.

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The wonderful content of this article is provided by Jinan ventilation duct. There are many wonderful contents on this website. You can click to enter more contents: http://www.sftfgd.com/ We have special customer service to answer your questions