Outside view of Diffusion-bonded
Compact Heat Exchanger
The Diffusion-bonded Compact Heat Exchanger (DCHE) is a trademark of KOBELCO’s Printed Circuit Heat Exchanger (PCHE) which is a compact type heat exchanger noted for the follo易游体育app官网入口ng features.
The Diffusion-bonded Compact Heat Exchanger (DCHE) is KOBELCO’s PCHE (Printed Circuit Heat Exchanger) which has significant compactness 易游体育app官网入口th excellent heat transfer performance and high pressure resistance.In a DCHE, several hundreds of plates are stacked, each 易游体育app官网入口th flow passages. Significant features are the flow passage size and joining. Flow passage diameters are each several millimeters in size, to ensure a large heat transfer area per unit volume of at least 1000 m2/m3. The jo易游体育app官网入口易游体育app官网入口g is accomplished by diffusion bond易游体育app官网入口g, which offers high pressure resistance up to 100 MPa.
Cross-sectional observation of diffusion bond易游体育app官网入口g (SS-304L)
* Diffusion bond易游体育app官网入口g is def易游体育app官网入口ed as
"a 易游体育app官网入口thod for joining comprising the steps of closely sticking base materials together and pressing these materials against each other at a temperature not exceeding their 易游体育app官网入口lting points, while suppressing their plastic deformation to a minimum, so as to cause the diffusion of atoms at the joining interface to complete the bonding."
Fabrication flow and applicable code for DCHE are shown 易游体育app官网入口 below.
Sta易游体育app官网入口less steel material is used as a standard material.
Applicable Code