Chalco is an aluminum alloy microchannel precision tube processing and production enterprise integrating R & D, production and sales. It mainly produces microchannel aluminum flat tubes. It is good at precision microchannel aluminum flat tubes. The monthly output is about 500 tons and the annual output is 6,000 tons. The introduction of foreign advanced machinery and equipment from Britain, Germany, South Korea, Japan, etc. After the project is completed, it will become the largest and best-in-class aluminum alloy hot-extrusion micro-channel precision pipe processing and production base in China.
Main alloys: 1 series 1100 etc., 3 series 3003 etc. 9153A
Specifications: The widest aluminum flat tube is 230mm-240mm, depending on the thickness
1) Width 45mm, 5mm thick, wall thickness can be 0.3-0.6mm, thickness tolerance can be 0.05mm
2) 45-125mm wide, 6-20mm thick, wall thickness 0.8-2.5mm, thickness tolerance 0.1-0.2mm
3) More than 125mm wide, wall thickness is 1.2-3mm, thickness tolerance is 0.2mm
Main production process of 1100 3003 Aluminum alloy hot extruded micro-channel precision tube:
Aluminum rod heating extrusion --- zinc spraying --- rewinding --- flaw detection --- plastic cutting --- inspection packaging
Technical features of 1100 3003 Aluminum alloy hot extruded micro-channel precision tube
High-quality cast rod: micro-channel flat tube aluminum rod filter 40 mesh + H0.09 ~ 0.13, and generally 20 mesh + 0.2
High requirements for zinc spraying: the amount of zinc layer is 6-8g / ㎡, but the general spraying fluctuations are large
Online Flaw Detection: Requires Online Flaw Detection
Large extrusion ratio: extrusion ratio is greater than 427, which is more than 8 times higher than conventional extrusion ratio (50)
Ultra-high dimensional accuracy: The accuracy requirement is ± 0.03, which is more than 8 times higher than the international high-precision level
High air tightness requirements: Product defects are measured by PPM, which is 200 times higher than traditional% requirements
1100 3003 Aluminum alloy hot extruded micro-channel precision tube are mainly used in:
Appliance refrigeration
Freezer
Car refrigeration
Base station cooling (Huawei 5G base station application)