Magnesium-ally mud-guard and production method

A production method and magnesium alloy technology, applied in the field of non-motor vehicle parts, can solve the problems of difficulty in producing non-motor vehicle mud panels, poor plastic deformation performance, unfavorable mechanical forming, etc., and achieve bright and beautiful color, small elastic modulus, Comprehensive performance uniform effect

Inactive Publication Date: 2006-08-09
于克儒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the narrow control range of the magnesium alloy process, especially the strict temperature requirements for hot extrusion, the relatively poor plastic defor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] The cut magnesium-aluminum series alloy bar with a weight percentage of 6% Al is subjected to surface peeling treatment, and then placed in an electric heating furnace to be heated to 400° C., and kept for 24 hours for homogenization annealing treatment. After leaving the furnace, cool it to room temperature in air, then heat it to 355℃±5℃ in an electric heating furnace, and keep it warm for 3 hours. During heating, 4-stage control furnace temperature is adopted and gas circulation is forced. At the same time, the extrusion die is heated to 340℃±10℃, and the extrusion barrel is heated to 340℃±10℃. The above-mentioned heated magnesium alloy bar is put into an extruder and extruded into a clay plate profile with an extrusion speed of 3-4m / min. During the extrusion process, do not heat the magnesium rod too high to melt and cause burning, or the temperature is too low to squeeze or squeeze the mold. After extrusion, conventional methods are used to interrupt...

Example Embodiment

[0033] Example 2

[0034] The production method of magnesium-aluminum series alloy clay board with 3% Al by weight is the same as that in Example 1, except that the extrusion process is that the bar is heated at a temperature of 395°C ± 5°C and kept for 3 hours. At the same time, the extrusion die is heated to 380℃±10℃, and the extrusion barrel is heated to 380℃±10℃. The extrusion speed is 6-7m / min.

[0035] Put the above-mentioned clay tablets into an aging furnace and heat them for stress relief annealing. The heating temperature is 190°C±10°C for 1-2 hours, and then air-cooled to room temperature after being discharged from the furnace.

[0036] The tensile strength of the magnesium alloy mudboard with this composition can reach 250Mpa, the elongation rate can reach 14, and the Brinell hardness can reach 45.

Example Embodiment

[0037] Example 3

[0038] The magnesium-aluminum alloy clay board with a weight percentage of 5% Al is produced, and the production method is the same as in Example 1. The extrusion process is that the heating temperature of the bar is 370℃±5℃, and the heat preservation is 3 hours. At the same time, the extrusion die is heated to 360°C±10°C, and the extrusion barrel is heated to 360°C±10°C. The extrusion speed is 4-5m / min.

[0039]Put the above-mentioned clay tablets into an aging furnace and heat them for stress relief annealing. The heating temperature is 190°C±10°C for 1-2 hours, and then air-cooled to room temperature after being discharged from the furnace.

[0040] The tensile strength of the magnesium alloy mudboard of this composition can reach 280Mpa, the elongation rate can reach 15, and the Brinell hardness can reach 55.

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Abstract

This invention discloses a Mg alloy mud plate and its production method including the following steps: eliminating skins of Mg alloy rods and adding them into a heating oven to be heated to 400deg.C to keep it for 24h then to be cooled to room temperature in air then to be sent into a heating oven to be heated to 350-400deg.C to be kept for 3h then to be sent into a squeezer to be squeezed to sections then carrying out de-stress annealing or artificial aging process, finally, mechanical molding is finished.

Description

technical field [0001] The invention relates to a non-motor vehicle part, in particular to a non-motor vehicle mud plate made of magnesium alloy and a method for producing the mud plate by extrusion. Background technique [0002] At present, the possession of non-motor vehicles (such as bicycles, electric bicycles, tricycles, etc.) in China is very large. For bicycles, there are about 500 million bicycles in my country, and the number of people using bicycles as a means of transportation is about 600 million. But along with the improvement of people's quality of life and the transformation of life concepts, bicycles have become the best tool for sports and leisure activities while acting as a means of transportation. At present, 20 million people in the United States ride bicycles for fitness; in Europe, cycling "one-day tour" has also become one of the most fashionable fashion sports. [0003] In terms of selecting materials for bicycle mud plates, bicycle manufacturers al...

Claims

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Application Information

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IPC IPC(8): C22C23/02C22F1/06B21C23/00
Inventor 于克儒
Owner 于克儒
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