Magnesium alloy LED (Light Emitting Diode) tube profile and extrusion molding process thereof

An LED lamp tube and extrusion molding technology, which is applied in the field of magnesium alloy LED lamp tube profiles and their extrusion molding process, can solve the difficulties in extrusion molding and continuous production of magnesium alloy tubes, and the difficulty in ensuring dimensional accuracy and dimensional stability. Problems such as low production efficiency and finished product rate of magnesium alloy pipes are achieved to ensure continuous extrusion production, small deformation resistance, and good deformation performance at medium temperature

Active Publication Date: 2012-10-31
WUXI FUMEI LIGHT ALLOY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with commonly used metal steel and aluminum alloy, the plastic formability of magnesium alloy is relatively poor, and the extrusion molding and continuous production of magnesium alloy pipes are more difficult, especially for complex cross-s

Method used

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  • Magnesium alloy LED (Light Emitting Diode) tube profile and extrusion molding process thereof
  • Magnesium alloy LED (Light Emitting Diode) tube profile and extrusion molding process thereof
  • Magnesium alloy LED (Light Emitting Diode) tube profile and extrusion molding process thereof

Examples

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Effect test

Embodiment 1

[0033] A magnesium alloy LED lamp tube profile extrusion molding process, which comprises the following steps:

[0034] Step 1: Melting a cast rod with a diameter of 70mm by using the conventional industrial preparation method of magnesium alloy ingot, the alloy composition is: Al: 2.8wt.%, Zn: 1.0wt.%, Mn: 0.27wt.%, Si≤0.02 wt.%, Fe≤0.003wt.%, the balance is Mg and impurities that cannot be removed.

[0035] Step 2: After the surface of the magnesium alloy cast rod is machined to a diameter of 65 mm, the cast rod is heated to 400° C. for 6 hours in a box-type resistance furnace for homogenization, and then slowly cooled to room temperature for use.

[0036] Step 3: Heat the pretreated cast rod to 350°C for 2 hours, then slowly raise the temperature to 400°C for 2 hours, then cool down to 380°C and hold for 1 hour. At the same time, place the LED special extrusion mold in a constant temperature system and heat it to 400°C insulation.

[0037] Step 4: Take out the cast rod an...

Embodiment 2

[0039] A magnesium alloy LED lamp tube profile extrusion molding process, which comprises the following steps:

[0040]Step 1: Melting a cast rod with a diameter of 100mm by using the conventional industrial preparation method of magnesium alloy ingot, the alloy composition is: Al: 3.0wt.%, Zn: 0.9wt.%, Mn: 0.27wt.%, Si≤0.02 wt.%, Fe≤0.003wt.%, the balance is Mg and impurities that cannot be removed.

[0041] Step 2: After machining the surface of the magnesium alloy cast rod to a diameter of 95 mm, the cast rod is heated to 400° C. for 6 hours in a box-type resistance furnace for homogenization treatment, and then slowly cooled to room temperature for use.

[0042] Step 3: Heat the pretreated cast rod to 350°C for 2 hours, then slowly raise the temperature to 400°C for 2 hours, then cool down to 380°C for 1 hour, and heat the extrusion die for LED in a constant temperature system Keep warm at 400°C.

[0043] Step 4: Take out the cast rod and quickly fill it into the extrusi...

Embodiment 3

[0045] A magnesium alloy LED lamp tube profile extrusion molding process, which comprises the following steps:

[0046] Step 1: Melt a cast rod with a diameter of 70mm by using the conventional industrial preparation method of magnesium alloy ingot. The alloy composition is: Al: 2.8wt.%, Zn: 1.1wt.%, Mn: 0.30wt.%, Si≤0.02 wt.%, Fe≤0.003wt.%, the balance is Mg and impurities that cannot be removed.

[0047] Step 2: After machining the surface of the magnesium alloy cast rod to a diameter of 65 mm, the cast rod is heated to 400° C. for 6 hours in a box-type resistance furnace for homogenization, and then slowly cooled to room temperature for use.

[0048] Step 3: Heat the pretreated cast rod to 350°C for 2 hours, then slowly raise the temperature to 400°C for 2 hours, then cool down to 380°C for 1 hour, and heat the extrusion die for LED in a constant temperature system Keep warm at 400°C.

[0049] Step 4: Take out the cast rod and quickly fill it into the extrusion barrel for...

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Abstract

The invention discloses a magnesium alloy LED (Light Emitting Diode) tube profile and an extrusion molding process thereof. The extrusion molding process comprises the following steps of: (1). according to the component proportioning requirements, smelting a magnesium alloy raw material; (2). preparing a magnesium alloy casting rod with the obtained magnesium alloy raw material; (3). heating the magnesium alloy casting rod to 400 DEG C to carry out heat preservation for 6 hours, and slowly cooling to room temperature along with a furnace after homogenization treatment; (4). heating the magnesium alloy casting rod subjected to homogenization treatment to 350 DEG C to carry out heat preservation for 2 hours, then slowly heating to 410 DEG C to carry out heat preservation for 2 hours, afterwards cooling to 380 DEG C to carry out heat preservation for 1 hour, and simultaneously heating an extrusion mould to 400 DEG C to carry out heat preservation; and (5). finally taking out the extrusion mould, assembling the extrusion mould on an extrusion machine, filling the magnesium alloy casting rod into the extrusion container of the extrusion mould for extrusion molding, so as to obtain the magnesium alloy LED tube profile by extrusion molding. The magnesium alloy LED tube profile and the extrusion molding process thereof have the advantages that the production efficiency and yield are improved and the machining cost is reduced on the premise that the size precision is ensured to meet the design requirements.

Description

technical field [0001] The invention belongs to the technical field of LED lamp tube manufacturing, and in particular relates to a magnesium alloy LED lamp tube profile and an extrusion molding process thereof. Background technique [0002] Compared with incandescent lamps, fluorescent lamps or sodium lamps, which currently have a very high market share, LED lamps have many characteristics such as low power consumption, high luminous efficiency, fast response and start-up, and long life, and have become a new light source for energy saving and emission reduction. . According to estimates, China's electricity consumption for lighting currently accounts for about 12% of the electricity consumption of the whole society. If energy-efficient LEDs are used to replace incandescent lamps, there is a huge potential for energy conservation and emission reduction. Therefore, the National Development and Reform Commission clearly stated that by 2016, China will completely phase out inc...

Claims

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Application Information

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IPC IPC(8): C22C23/02B21C23/02B21C29/00
Inventor 丁汉林魏峰严峻陈伟
Owner WUXI FUMEI LIGHT ALLOY TECH
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