Introduce of Shanghai Songjiang Group- [Patent Certificate] Manufacture of DN100 Stable performance metal and rubber expansion joints supplier get New type QT450 flange patent. QT450 patent flange Rubber Expansion Joint information, Rubber expansion joints supplier provides the most specific solution for each case.
New type rubber expansion joints flange
Material: QT450
Treatment: spray plastic
Features: one-time molding, eliminating machining links, higher precision of finished products, avoiding processing error.
![[Patent Certificate] Manufacture of DN100 Stable performance metal and rubber expansion joints supplier get New type QT450 flange patent.](https://www.rubber-expansion-joint.cn/wp-content/uploads/2022/06/Manufacture-of-DN100-metal-and-rubber-expansion-joints-2.jpg "[Patent Certificate] Manufacture of DN100 Stable performance metal and rubber expansion joints supplier get New type QT450 flange patent.")
![[Patent Certificate] Manufacture of DN100 Stable performance metal and rubber expansion joints supplier get New type QT450 flange patent.](https://www.rubber-expansion-joint.cn/wp-content/uploads/2022/06/Manufacture-of-DN100-metal-and-rubber-expansion-joints-1.jpg "[Patent Certificate] Manufacture of DN100 Stable performance metal and rubber expansion joints supplier get New type QT450 flange patent.")
The utility model discloses a new rubber expansion bellow flange, which comprises a rubber pipe joint and a flange respectively connected at both ends of the rubber pipe joint. The connecting surface of the flange is flat, the back of the flange is a conical surface, and the thickness of the flange is gradually reduced from the inner ring to the outer ring. The flange back ring is provided with a plurality of flannel inner ring to the outer ring extension of the reinforcement strip, the reinforcement strip back parallel to the flange connecting surface, each reinforcement strip is provided with a connecting through-hole; A groove is arranged on the connecting surface of the flange between the adjacent two connecting through holes, and the depth of the groove gradually increases from the outer ring of the flange to the direction of the inner ring. The flange plate of the utility model has high strength, small weight, few consumables, and low cost.
