The aluminum microchannel tubes
MPE tubes (also known as "parallel flow aluminum flat
tube") is a kind of thin-walled porous flat tube
material, which is made of refined aluminum rod, hot extrusion, zinc spraying
and anti-corrosion treatment. The aluminum micro channel
tube has refrigerant medium inside and atmospheric corrosion
outside, which is easy to leak due to point corrosion. A thin layer of zinc must
be sprayed on its outer surface to protect the tube wall from corrosion.
Due to the difficulty and many difficulties of the aluminum
microchannel tube technology, how to use scientific and
effective on-line flaw detection, surface quality and other detection means in
the production process to detect (mark) defective products in time is the key to
the quality control of the aluminum micro channel tubes.
Ability of manufacturing process
1. Mold design and processing technical ability:
It mainly includes the design and manufacturing technology of the hot extrusion
die with extremely low extrusion breakthrough force, extremely high dimensional
accuracy, special forming ability and strong wear resistance; the full
application of the wear-resistant, heat-resistant and super lubrication
technology of the inner wall of the die; the multi-point temperature precision
control technology of single multi support Co extrusion die, etc.
2. Extrusion process control technology capability:
It mainly includes constant temperature heating and constant speed extrusion
technology of extruder die barrel, gradient heating technology of casting rod;
The technology of multi hole micro ultra thin wall balanced extrusion, heat
energy elimination and keeping all links free of product deformation factors and
product defects, single multi product rewinding and discharging device and
synchronous control technology, etc.
3. Comprehensive use and commissioning capacity
It mainly includes the ability to select, modify, debug and combine various
equipment according to the production requirements of aluminum
microchannel tubes; online zinc spraying and control
technology; online detection, defect marking and control feedback technology
of solder roll coating;Product uncoiling, finishing, straightening and chip
free cutting technology.
4. Ability to adapt and respond quickly
The aluminum microchannel aluminum flat tube has thin wall, many holes and small inner cavity area. It should be extruded with alloy with good molding, strong fluidity, moderate strength, good weldability and high corrosion resistance. Most of them are made of 1 series alloy, 1100 for China, The microstructure of 1050 and 1070 alloy, microchannel aluminum flat tube welds shall be free of defects, free from cracking during cold deformation, and able to bear the blasting pressure of > = 8N / mm2. The processing plant adopts 5-8mn extruder for extrusion. In order to improve the corrosion resistance of the micro channel aluminum flat tube, alloy 3003,3102 can be selected, and Alloy 6063 can be used to improve the pressure bearing capacity of the aluminum microchannel tube.
The aluminum microchannel aluminum flat tube has thin wall, many holes and small inner cavity area. It should be extruded with alloy with good molding, strong fluidity, moderate strength, good weldability and high corrosion resistance. Most of them are made of 1 series alloy, 1100 for China, The microstructure of 1050 and 1070 alloy, microchannel aluminum flat tube welds shall be free of defects, free from cracking during cold deformation, and able to bear the blasting pressure of > = 8N / mm2. The processing plant adopts 5-8mn extruder for extrusion. In order to improve the corrosion resistance of the micro channel aluminum flat tube, alloy 3003,3102 can be selected, and Alloy 6063 can be used to improve the pressure bearing capacity of the aluminum microchannel tube.
It is mainly used in the air conditioning system of various refrigerants. As the
pipe parts carrying the new environmental protection refrigerant, adopting the
new environmental protection system is the key material of the new generation of
microchannel air conditioning heat exchanger.
