近几年，作为空调、通风系统中重要组成部分的风管用量每年都在增加，对其要求也越来越高。科技的进步使得风管的制作、安装所使用的新材料、新工艺层出不穷，共板法兰风管就是其中之一。共板法兰风管生厂线已成为大型建筑安装企业的必备机具，同时能否生产共板法兰风管已成为影响承接重点暖通工程项目的重要因素。

In recent years, as an important part of air conditioning and ventilation system is increasing every year, and its requirements are more and higher.The progress of science and technology makes the new materials and new processes used in the production and installation of the air duct emerge in an endless stream, and the common plate flange air duct is one of them.The factory line of the common plate flange air duct has become a necessary machinery and tools for large construction and installation enterprises, and whether the common plate flange air duct has become an important factor affecting the undertaking of key HVAC projects.

法兰间的连接用法兰卡，由镀锌钢板制作，经法兰卡成型机成型后切割成统一的尺寸供安装连接使用。TDF共板法兰因与管道钢板连成一体，不必像角钢法兰般打孔铆接，在两节管道的连接上用专用法兰卡，四角加90度法兰角后用螺栓连接。操作简单，提高了效率，外观平整、光滑，尺寸准确，互换性强，产品的质量稳定。

Connections between flanges is used in Lanka, made of galvanized steel plate and cut into a uniform size for installation and connection.The TDF co-plate flange is connected with the pipe steel plate and does not have to be riveted like a corner steel flange. Special flange is bolted on the connection of the two pipes and four corners plus 90-degree flange corners.Simple operation, improve efficiency, smooth appearance, smooth appearance, accurate size, strong interchangeability, product quality is stable.

钢厂出厂的镀锌产品有电镀锌、热镀锌两类方法，而这两类又再做细分，电镀锌中从锌层厚度上分为单面、双面和差厚镀层三类，而热镀锌则没有单面和差厚镀层，但热镀锌又分为镀锌和镀锌铁合金，电镀则没有锌铁合金。镀层种类上电镀的镀层又延伸为电镀锌、电镀锌镍、电镀锡、电镀铬，热镀锌的延伸则更多，其中有热镀锌、锌铁、铝锌、锌铝、和锌铝镁等。

Steel factory galvanizing products have galvanized two types of galvanizing, hot galvanizing, and these two categories are subdivided, electroplating zinc thickness is divided into single face, double sides and differential thickness coating three categories, and hot galvanization is no single face and differential thickness coating, but hot galvanization is divided into galvanized and galvanized ferroalloy, electroplating is no zinc ferroalloy.The plating on the type of plating extends to electroplating zinc, electroplating zinc nickel, electroplating tin, electric chrome plating, the extension of hot galvanization is more, including hot zinc plating, zinc iron, aluminum zinc, zinc aluminum, and zinc aluminum magnesium, etc.

在腐蚀环境下，锌会比钢优先腐蚀，从而保护了钢基，而锌层在耐腐蚀上又会因为行成一定保护膜防止过快氧化，延缓腐蚀速度，而且可以在维护中涂刷锌粉油漆等方式，防止钢的腐蚀，保证材料的力学性能等安全属性。

In the corrosion environment, zinc will give priority to corrosion than steel, thus protecting the steel base, and the zinc layer in the corrosion resistance into a certain protective film to prevent too fast oxidation, delay the corrosion speed, and can be painted with zinc powder paint in the maintenance, to prevent steel corrosion, to ensure the mechanical properties of materials and other safety properties.