方管，是方形管材的一种称呼，也就是边长相等的的钢管。是带钢经过工艺处理卷制而成。一般是把带钢经过拆包，平整，卷曲，焊接形成圆管，那么您知道济南方管的加工要注重什么吗？

Square pipe is a name for square pipe, that is, steel pipe with equal side length. It is made of rolled strip steel after process treatment. Generally, the strip steel is unpacked, leveled, crimped and welded to form a round pipe. Do you know what to pay attention to in the processing of square pipes in Jinan?

方管要在专用进口流水线上进行制作，以确保风管制作精度及方管的密闭性。方管配件的下料应在进口专用机器上运用计算机软件全自动化完成，并由进口的钣金专用等离子切割机上完成自动等离子切割工序。方管管体与插接法兰间的连接应采用无铆钉连接工艺，运用进口设备进行无铆钉连接工艺。方管的咬口连接应采用进口自动咬合器进行咬合工艺。

The square pipe shall be manufactured on the special imported assembly line to ensure the manufacturing accuracy of the air pipe and the tightness of the square pipe. The blanking of square pipe fittings shall be fully automated by using computer software on the imported special machine, and the automatic plasma cutting process shall be completed by the imported special plasma cutting machine for sheet metal. The connection between the square pipe body and the plug-in flange shall adopt the rivetless connection process, and the imported equipment shall be used for the rivetless connection process. The bite connection of square pipe shall adopt imported automatic bite device for bite process.

方管的连接法兰应采用连板法兰及插接法兰连接工艺，方管大边边长小于或等于2000mm时应采用共板法兰连接形式。

The connecting flange of the square pipe shall adopt the connection process of connecting plate flange and plug-in flange. When the length of the large side of the square pipe is less than or equal to 2000mm, the common plate flange connection shall be adopted.

1、不锈钢弯头变壁厚不锈钢方管，沿管子长度方向使壁厚发生变化；

1. Stainless steel elbow is a stainless steel square pipe with variable wall thickness, which changes the wall thickness along the length of the pipe;

2、加工方管断面，将圆形断面变为方形、椭圆形、多边形；

2. Processing the square pipe section, changing the circular section into square, oval and polygon;

3、带卷边和封底类的方管，增加管端总强度向管的外侧或内侧卷边或将方管端部封住的方管；

3. For square pipes with curling and back cover, increase the total strength of the pipe end to curl to the outside or inside of the pipe or seal the end of the square pipe;

4、不锈钢弯头变直径方管，指管端或管上某一部分直径减小；

4. Stainless steel elbow is a square pipe with variable diameter, which means that the diameter of the pipe end or a part of the pipe decreases;

5、不锈钢弯头弯曲方管，我们接触比较多的，就是将直管变为不同曲率半径的弯管，如弯头、弯管等等；

5. Stainless steel elbow bending square pipe, we have more contact with, that is, changing straight pipe into elbow with different radius of curvature, such as elbow, elbow, etc;

6、带凸缘和圆缘的方管，前者指管子端部向内侧或外侧凸，后者指在管的圆周方向形成隆起的或凹槽的方管。

6. A square pipe with a flange and a round edge. The former refers to a square pipe whose end is convex to the inside or outside, and the latter refers to a square pipe with a bulge or groove formed in the circumferential direction of the pipe.

方管的加工要注重什么？以上六个方面就是相关内容了，如果您对此有什么疑惑，欢迎来我们网站http://www.jnhxtcg.com联系有关人员咨询。

What should we pay attention to in square tube processing? The above six aspects are related content. If you have any doubts about this, please come to our website http://www.jnhxtcg.com Contact relevant personnel for consultation.