1、划线要据风管的不同尺寸形状和规格分别进行，同时对一段风管要完整进行，防止划线错孔和下料的多少有误。板材剪切依据划线的阶段不同，分别进行，同时必须进行下料的复核，以免有误。按划线形状用机械剪刀进行剪切。

1. The marking should be carried out according to the different sizes, shapes, and specifications of the air duct, and a section of the air duct should be completed to prevent errors in marking, drilling, and cutting. The cutting of sheet metal is carried out separately according to the different stages of marking, and a review of the cutting process must be carried out to avoid errors. Use mechanical scissors to cut according to the marked shape.

2、剪切时，手严禁伸入机械压板空隙中，上刀架不准放置工具等物品，调整板料时，脚不能放在踏板机上，使用固定式震动剪两手要扶稳钢板，手离刀口不得小于5cm，用力均匀适当。板材下料后在轧口之前，必须用倒角机或剪刀进行倒角工作。金属薄钢板制作的风管用咬口连接、铆钉连接、焊接等不同方法。咬口宽度和留量要根据板材厚度而定。

2. When cutting, hands are strictly prohibited from reaching into the gaps of the mechanical pressure plate. Tools and other items are not allowed to be placed on the upper tool holder. When adjusting the plate material, feet should not be placed on the pedal machine. When using a fixed vibration shear, both hands should hold the steel plate firmly, and the hand should not be less than 5cm away from the cutting edge. The force should be evenly and appropriately applied. After cutting the sheet metal, it must be chamfered using a chamfering machine or scissors before rolling. The air ducts made of metal thin steel plates are connected using different methods such as biting, riveting, and welding. The width and allowance of the bite should be determined based on the thickness of the board.

3、焊接时必须焊缝均匀，无裂纹及加渣现象，铆钉连接时，铆钉中心先垂直于面板，铆钉头把板材压紧，使板材密合并排列整齐、均匀。板材之间铆接，一般中间不可以加垫料，设计规定时，遵循设计。咬口时手指据滚轮护壳不小于50mm，手不准放在咬口机管道上扶稳板料。

3. When welding, the weld seam must be uniform, without cracks or slag. When connecting with rivets, the center of the rivet should be perpendicular to the panel first, and the rivet head should press the plate tightly to ensure that the plate is tightly packed and arranged neatly and evenly. When riveting between sheets, it is generally not allowed to add padding in the middle. When designing, follow the design regulations. When biting, the fingers should not be less than 50mm against the roller protective shell, and hands should not be placed on the biting machine pipeline to stabilize the plate material.

4、咬口后的板料将画好的折方线放在折方机上，置于下模的中心线，操作时，使机械上刀片与下模中心线重合，折成所需的角度。折方时应相互配合并与折方机保持一定距离，以免被翻转的钢板或配件碰伤。

4. After biting, place the drawn folding line on the folding machine and place it on the centerline of the lower mold. During operation, make the mechanical upper blade coincide with the centerline of the lower mold and fold it to the desired angle. When folding, they should be matched with each other and kept at a certain distance from the folding machine to avoid being damaged by flipped steel plates or accessories.

5、制作员风管时，将咬口两端拍成圆弧状放在卷圆机上卷圆。按风管直径规格适当调整上、下辊间距，操作时，手不得直接推送钢板。折方或卷圆后的钢板用合口机或手工进行缝合。操作时，用力均匀，不易过重。单、双口确定咬合，无脏裂或半咬口现象。

5. When making the air duct, the two ends of the bite are flattened into an arc shape and placed on the rounding machine for rounding. Adjust the spacing between the upper and lower rollers according to the diameter specifications of the air duct. During operation, do not push the steel plate directly by hand. The folded or rolled steel plates are sewn together using a sewing machine or manually. When operating, apply force evenly and avoid being too heavy. Single or double bite confirmed bite, without any signs of dirty cracks or partial bite.

镀锌钢板风管是以镀锌钢板为主要原材料，经过咬口，机械加工成型，具有现场制作方便，同时具有可设计性，是传统的通风、 空调 用管道，同时随着技术的发展，由以前的手工制作改变为现在得全部机械化化生产，具有效率高，加工尺寸等特点。

Galvanized steel sheet air duct is mainly made of galvanized steel sheet as the main raw material, which is formed through biting and mechanical processing. It has the advantages of convenient on-site production and designability. It is a traditional ventilation and air conditioning pipeline. With the development of technology, it has changed from manual production to fully mechanized production, with high efficiency and processing size.

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This article is from: Jinan Ventilation Pipeline. For more information, please click: http://www.jntfgd.com We will provide a satisfactory service for the questions you ask, and welcome you to come.