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Method for manufacturing magnesium alloy extruded tube

A manufacturing method, magnesium alloy technology, applied in the field of pipe manufacturing, can solve the problems of poor processability, difficult magnesium alloy pipe, ductility, poor plasticity, etc., and achieve good plasticity

Active Publication Date: 2009-04-15
北京广灵精华科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the magnesium alloy is a closely arranged hexagonal lattice structure, the ductility and plasticity are poor, so the processability is poor, and it is not easy to form magnesium alloy pipes by extrusion.
Moreover, even if the magnesium alloy pipe is formed by extrusion, it often faces the dilemma of low strength

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  • Method for manufacturing magnesium alloy extruded tube

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Embodiment Construction

[0025] The manufacturing method of the magnesium alloy extruded tube of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] like figure 1 As shown, the manufacturing method of the magnesium alloy extruded tube of the present invention comprises the following steps:

[0027] Step 101, melting the magnesium alloy raw material ingot, and cooling the melted molten metal to form a cylindrical ingot.

[0028] The composition of the magnesium alloy raw material ingot used in the present invention is: 58% to 64% of magnesium, 7% to 8% of aluminum, 3% to 4% of zinc, 4% to 5% of zirconium, and 1% of yttrium ~2%, Lithium is 21%~23%. The preferred scheme is: 62% for magnesium, 7% for aluminum, 3% for zinc, 4% for zirconium, 2% for yttrium, and 22% for lithium.

[0029] In this step, the temperature of melting the magnesium alloy raw material ingot is 590-650 degrees Celsius. The resulting molten metal is poured into a cylindric...

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Abstract

The invention discloses a method for manufacturing a magnesium alloy extrusion tube. The method comprises the following steps: a magnesium alloy material ingot is melted, and the molten metal obtained by melting is cooled down to form a cylindrical cast ingot; the cast ingot is heated up to the temperature of between 350 and 360 DEG C, slowly cooled down to the temperature of 270 DEG C and kept at the temperature for the set time; and the cast ingot is continuously cooled down to the temperature of 220 DEG C and then extruded into the magnesium alloy extrusion tube. In the method for manufacturing the magnesium alloy extrusion tube, by improving the manufacturing process of the extrusion tube, the magnesium alloy tube extruded has good plasticity, ductility and strength.

Description

technical field [0001] The invention relates to a method for manufacturing a pipe, in particular to a method for manufacturing a magnesium alloy extruded pipe. Background technique [0002] The so-called magnesium alloy is an alloy composed of magnesium and other elements. Its characteristics are: low density (about 1.8g / cm3), high specific strength, large elastic modulus, good shock absorption, greater impact load capacity than aluminum alloy, and good corrosion resistance to organic matter and alkali. The main alloying elements are aluminum, zinc, manganese, cerium, thorium and a small amount of zirconium or cadmium. [0003] Magnesium-aluminum alloys are currently the most widely used, followed by magnesium-manganese alloys and magnesium-zinc-zirconium alloys. Mainly used in aviation, aerospace, transportation, chemical industry, rocket and other industrial sectors. According to the forming method, it is divided into two types: wrought magnesium alloy and cast magnesiu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P17/00B22D7/00C22C23/00C22F1/06B21C23/02
Inventor 仝仲盛牛强白夏冰李胜凯
Owner 北京广灵精华科技有限公司