Magnesium alloy plastic process product and manufacture method thereof

A technology of plastic processing and manufacturing method, applied in metal processing equipment, manufacturing tools, metal rolling, etc., to achieve the effect of suppressing cracking or surface blackening, high strength, and ensuring extrudability

Inactive Publication Date: 2008-09-24
三井金属压铸株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, if you extrude a heat-resistant magnes

Method used

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  • Magnesium alloy plastic process product and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and comparative example 1～2

[0060] A Mg-5Al-2Ca-2MM (cerium alloy)-0.2Mn alloy was melted, and a cylindrical casting billet of φ168×500 mm was produced using a casting mold under the following conditions.

[0061] In Example 1, casting was performed continuously at a constant speed, and the molten metal was replenished at the shrinkage portion. In Comparative Example 1, small sparks occurred during melt retention. Furthermore, in Comparative Example 2, although the casting was performed continuously at a constant speed under the same conditions as in Example 1, melt shrinkage (concavity and convexity) remarkably occurred on the side surface.

[0062] Form 1

[0063] melting temperature

Embodiment 2 and comparative example 3-4

[0065] The cylindrical continuous casting billet produced in Example 1 was processed into a cylindrical extrusion billet of φ150×400 mm, and a φ30 rod was produced using an extruder 1650T under the following conditions.

[0066] In Example 2, in order to control the mold temperature, a cooling pipe was installed to circulate oil at 200°C to adjust the mold temperature, and the billet temperature at the mold exit was controlled below 470°C, and argon gas was blown to the billet. In Comparative Examples 3 and 4, the mold temperature was not controlled.

[0067] Form 2

[0068] billet temperature

[0069] In Example 2, the extrusion speed was 5 m / min, and the obtained extruded profile had a tensile strength of 270 MPa and an elongation of 10% (in the longitudinal direction).

Embodiment 3 and comparative example 5～6

[0071] The extruded profile produced in Example 2 was cut to form a φ30×50 billet for forging, and a φ42.5×25 cylinder was produced by closed die forging using a press forging machine 100T under the following conditions.

[0072] Form 3

[0073] soaking time

[0074] Example 3

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Abstract

The invention provides the production of plastic processing products ensuring forgeability, preventing from fracture, blackening and burning surface, realizing formability of complex shape of die casting, high reliability and high intensity performance of forging products, and production of cheep and high-quality plastic processing products, as well as producing magnesium alloy plates cheaply according to requirements, further comprising production of magnesium alloy plastic processing products plastically processing the magnesium alloy plates produced cheaply.

Description

technical field [0001] The present invention relates to a magnesium alloy plastically processed product, a manufacturing method thereof, a magnesium alloy extruded profile and a manufacturing method thereof. Black, burning, and plastic processed product manufacturing methods that ensure the mechanical strength of plastic processed products, (ii) by combining die casting and plastic processing, simultaneously realize the formability of complex shapes of die casting and high reliability of plastic processing , manufacturing method of plastic processed products with high-strength combined processing technology, (iii) industrial machinery such as vehicles such as automobiles, mobile phones, and notebook computers that require light weight, consumer electrical appliances such as information appliances, electric tools, and general-purpose engines, etc. Manufacturing methods for plastically processed products of magnesium alloys, (iv) plastically processed products obtained by these ...

Claims

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Application Information

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IPC IPC(8): B21C23/02B21C31/00B21C23/01B21C29/00C22C23/00B23P17/00
CPCB21B3/00C22C23/02C22F1/06
Inventor 久保田耕平野坂洋一堀隆之太利范人能本和幸
Owner 三井金属压铸株式会社
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