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FOSHAN NANHAI HAOLI MACHINERY CO.,LTD.
Guangdong . China
4300 tons copper-aluminium profile extruder
How to determine the tonnage of aluminium profile extruder?
Extruder is the main equipment for producing aluminium profile. The shape and size of aluminium profile are closely related to its appearance and quality. There are many kinds of classifications of extruder. When many enterprises choose extruder, they should have a systematic understanding of extruder type, extrusion capacity and grade. How to determine the tonnage of aluminium profile extruder is also the choice of aluminium profile manufacturer. One aspect that must be considered when purchasing extruders is to explain the selection of tonnage of extruders today.
According to the type of alloy to be extruded, the annual production per machine and the maximum circumferential diameter of profiles, we will initially select the type of extruder. The first thing to consider is how large the tonnage of the extruder is.
When choosing the tonnage of extruder, the extrusion ratio of extruder, also known as extrusion coefficient, refers to the ratio of the cross-sectional area of extrusion cylinder to the total cross-sectional area of aluminium profile. It is the main parameter used to measure the deformation of aluminium alloy in the production of aluminium profile.
Lambda =Ft/ Sigma F1
Among them, Ft represents the cross-sectional area of the aluminium ingot filled in the extrusion cylinder, which is expressed by mm_.
_F1 represents the total cross-sectional area of extruded profiles and mm_represents it.
In the extrusion of aluminium profile, the deformation of aluminium alloy can also be expressed by the degree of deformation: e=lambda-1
If the extrusion process is used, the extrusion ratio is limited. The extrusion ratio of aluminium profile and aluminium bar in one extrusion is greater than 8-12, and the extrusion ratio of blank in second extrusion is not limited.
The above method is used to calculate the extrusion ratio. Simply speaking, the cross-section area of the extruded ingot is used to calculate the cross-section area of the extruded profile. Other methods can also be used to calculate the length of the extruded profile and the length of the ingot used for extrusion.
Before determining the tonnage of the extruder, it is necessary to know the cross-section shape of the profile, so as to determine the size of the die, and then determine the structure of the die, so as to determine whether the extruded hollow profile or solid profile, the tonnage of the extruder required for these two different structural profiles is different.
There are many classifications of extruders. According to the extrusion capacity, they can be divided into small, medium, large and heavy extruders. The extrusion capacity of each type of extruder is limited. The extrusion capacity is usually expressed by MN, that is, tonnage. The tonnage of 6063 Aluminium Profile extruder used in industrial production has the following standards:
Tonnage List of Extruders Used to Extrude 6063 Aluminum Profiles