Some Suggestions on preventing cracking at the bite point of rectangular air duct

There are many reasons for the cracking of the bite machine, one of which is the large section of the rectangular air duct of the bite machine. Several aspects are explained below.

1) improper selection of bite form. Large rectangular duct if the use of snap bite, duct four corners easy to crack.

2) due to the uneven force in all directions of the air duct during transportation, vibration and installation, it is easy to crack the snap.

3) when the large side size of the rectangular air duct is more than 1500mm, corner bite or joint corner bite shall be adopted, and snap bite shall not be used as far as possible.

4) duct buckle type bite, such as cracking, available with duct homogenous materials do a 50 mm X 50 mm, 90 ° Angle, with rivets from 3 to 4, the duct bite cracking in good repair. The Angle embrace length should be about 100mm greater than the cracking length of the air duct (as shown in the figure below).

Related parameters of bite machine are shown in the diagram

The above mentioned prevention of fracture at the bite point of rectangular tuyere is a very important preventive measure, which is also tried and tested in the industry and constantly enriched its content.