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Correct use of extruded aluminum t slot extrusion speed
Release time:
2023-01-12 13:25
Source:
Extruded aluminum t slot extrusion speed is related to alloy type, ingot state and size, product shape, deformation degree (or extrusion coefficient), deformation temperature, tool (mold) structure and process conditions and other factors.
1. Influence of ingot quality
Ingot quality indicators are mainly grade one grain size, less hydrogen content (below 0.1.mL/100g aluminum), less and fine slag particles (remove slag particles above 0.008mm), uniform metallographic structure, no cracks, looseness, and pores and elemental segregation.
In this way, the plasticity and deformation of the ingot are good, the extrusion force of the extruded aluminum t slot is reduced, and the extrusion speed is increased. Otherwise, the extrusion speed will be slow and the die loss will be large.
2. The influence of extrusion temperature
When extruded aluminum t slot is extruded, as the temperature rises, the non-uniformity of metal fluidity will increase.
During the entire extrusion process, the temperature of the ingot in the deformation zone also gradually increases, and the faster the extrusion speed, the higher the temperature, and the temperature rise can reach about 100C.
When the metal temperature in the deformation zone exceeds the maximum permissible critical deformation temperature, the metal will enter a hot and brittle state and form extrusion cracks.
Therefore, when the ingot temperature is high, the extrusion speed must be gradually reduced during the extruded aluminum t slot extrusion process.
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Tel: 86-512-53640771
Fax: 86-512-53640769
E-mail：sales@alumag.com.cn(Domestic sales)
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Web:http://www.alumag.com.cn/
Address: No. 9, Xingang East Road, Liujiagang, Fuqiao Town, Taicang City, Jiangsu Province, China