风管加工的操控关键是怎样的？

发布人：   发布时间：2022-02-26 16:58:38

风管加工、设备工艺要求和质量控制关键，应选择咬口连接或铆接，不得焊接；风管板拼接咬缝应错开，无交叉拼接缝，咬缝紧密，宽度一致，折叠角直，弧均匀，两端平行；风管无明显扭曲和翘曲角，表面平整，凹凸不大于。

For air duct processing, equipment process requirements and key quality control, bite connection or riveting shall be selected instead of welding; The splicing and biting joints of air duct plates shall be staggered without cross splicing joints. The biting joints shall be tight, the width shall be consistent, the folding angle shall be straight, the arc shall be uniform, and the two ends shall be parallel; The air duct shall be free of obvious distortion and warping angle, and the surface shall be flat, and the concave convex shall not be greater than.

风管外径或外长的承诺误差为负误差，当风管大边长小于或等于630mm时，为-1mm；当大于630mm时，管口平面度的承诺误差为1mm，矩形风管两条对角线的长差不大于，矩形风管边长大于630mm，保温风管边长大于800mm。

The committed error of the outer diameter or outer diameter of the air duct is negative. When the large side length of the air duct is less than or equal to 630mm, it is - 1mm; When it is greater than 630mm, the promised error of nozzle flatness is 1mm, the length difference of two diagonal lines of rectangular air duct is not greater than, the side length of rectangular air duct is greater than 630mm, and the side length of thermal insulation air duct is greater than 800mm.

管段长度大于1250mm或低压风管单侧平面积大于1.2mm，中高压风管大于1.0mm，应采用加固方法。质量控制关键风管与法兰铆接前应进行技术质量审查，管段应留出10mm翻边量。连接法兰铆钉时，有必要将铆钉中线垂直于板面，使铆钉头压紧板材，使板缝紧密。

If the length of the pipe section is greater than 1250mm, or the flat area of one side of the low-pressure air duct is greater than 1.2mm, and the medium and high-pressure air duct is greater than 1.0mm, the reinforcement method shall be adopted. Technical quality review shall be conducted before riveting the key air duct and flange for quality control, and 10mm flanging amount shall be reserved for the pipe section. When connecting flange rivets, it is necessary to make the rivet center line perpendicular to the plate surface, so that the rivet head presses the plate to make the plate seam tight.

铆接法兰应采用液压铆钉机械铆接。铆接应牢固，铆钉不得脱落或泄漏。风管与法兰连接时，翻边宽度不小于6mm，翻边均匀平整，靠近法兰，翻边不得覆盖螺孔，四角需要平整，无开口。

Riveted flanges shall be mechanically riveted with hydraulic rivets. The riveting shall be firm and the rivets shall not fall off or leak. When the air duct is connected with the flange, the flanging width shall not be less than 6mm, the flanging shall be uniform and flat, close to the flange, the flanging shall not cover the screw hole, and the four corners shall be flat without opening.

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The above is the knowledge brought to you today. Jinan air duct processing factory has focused on the industry for many years and continuously provided users with valuable content. Please continue to pay attention to us for more content: