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Industrial rods
Solid rods for industrial use can be manufactured by direct or indirect extrusion, and we will make different recommendations as per your different demand depending on the different use purpose of the product.
The Company concentrates on the development and production of industrial or high-performance aluminum alloy extrusion section material, and is equipped with more than 40 extrusion production lines and direct interactive extrusion machine of 4500T at maximum which features high precision and high capacity, and is able to meet the customer's customized demand.
Full process one-stop service including material development, material smelting, cross-section design, die development and manufacturing, product development and manufacturing and product testing greatly saves your development time and cost.
Advantages of indirect extrusion bar of our company:
the differences of mechanical properties and microstructure of extrusion products in the horizontal and longitudinal directions are small;
there is no obvious severe denaturation zone, and products with shallow coarse ring depth and fine-grains can be produced;
all products adopt extrusion of ingots after peeling, alumina, segregation layer and impurities on the surface of the ingots will not be brought into the product;
there are no head and tail material defects of traditional direct extrusion such as no joining material and back-end defect.
Due to the metal flow characteristics of indirect extrusion, the strain rate at positions other than cross-section is relatively uniform except for the high shear strain in the shallow surface layer. Direct extrusion not only has a higher shear strain than indirect extrusion on the surface of the extruded, but also has a significant strain rate gradient along the radius of the cross-section, which is mainly embodied in the inhomogeneity of grain size, as shown in the figure below:
figure 1: 6005A alloy, indirect extrusion, as shown in comparison between low temperature process conditions (420 °C * 2m/min) and high temperature process conditions (500 °C * 15m/min), although the two process conditions are very different but the grain size does not change significantly;
Figure 2: 6005A alloy, direct extrusion, as shown in comparison between sub-low temperature process conditions (500 °C * 2m/min) and sub-high temperature process conditions (high temperature high speed 500 °C * 8m/min), the difference between the two process conditions is small, but the result difference is significant: ① under one same cross-section, the grain size from the surface to the core is quite different, ② the grain size under different process conditions also changes significantly.
Materials:
2000 series;
3000 series;
4000 series;
5000 series;
6000 series;
7000 series.
