A kind of heat-resistant magnesium alloy strengthened by Sn, Si compound and preparation method thereof
A magnesium alloy and heat-resistant technology, applied in the field of metal materials and metallurgy, can solve the problems of reducing the corrosion resistance of the alloy, the refinement is not obvious, and the magnesium alloy grain is coarse, and achieves the effect of improving the heat resistance and mechanical properties.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0031] The present invention also provides the preparation method of above-mentioned magnesium alloy, improves the heat-resistant performance of alloy through Sn, Si composite strengthening, such as figure 1 As shown, follow the steps below to implement:
[0032] Step 1, weigh magnesium ingot, SiO 2 and Sn, so that it satisfies the following mass percentages: 3-6% Sn, 0.5-3.5% Si, and the balance is Mg, and the total mass percentage of the above components is 100%; wherein SiO 2 for SiO 2 powder or SiO 2 Granules, i.e. quartz powder or quartz granules, SiO 2 The particle size of the powder is 3-100μm, SiO 2 The particle size of the particles is 0.5-1.5mm;
[0033] Step 2, the SiO 2 Dry at a temperature of 200-450°C, and the drying time is 0.5-2.5 hours;
[0034] Step 3, Drill holes on the magnesium ingot, the size of the holes can be filled with the required SiO 2 As the standard, the SiO that has been dried in step 2 2 Place in the drilled hole and seal the hole with...
Embodiment 1
[0048] The composition of the alloy is composed by weight percentage: 3% Sn, Si% 1, the rest is Mg and unavoidable impurities.
[0049] The alloy casting process is:
[0050] SiO with a particle size of 3-100 μm 2 The powder was dried at a temperature of 250°C for 1.5 hours, and the dried SiO 2 Powder ready for use. Saw industrial pure magnesium ingots into small pieces, the size of which can be put into the crucible, and drill holes on the sawed magnesium ingots, the size of which can be filled with the required SiO 2 The powder shall prevail; the magnesium ingot quality after drilling shall be weighed according to the ratio; the SiO 2 The powder is filled into the drilled holes on the magnesium ingot. The ingot is placed in the crucible with the drilled hole facing up, and the required Sn is added to heat to 750°C for melting, and the melting process is carried out under the protection of Ar gas. When the AZ91 magnesium alloy is completely melted, it is mechanically sti...
Embodiment 2
[0054] The composition of the alloy is composed by weight percentage: 5% Sn, Si% 0.5, and the rest are Mg and unavoidable impurities.
[0055] The alloy casting process is:
[0056] SiO with a particle size of 3-100 μm 2 The powder was dried at 200°C for 2.5 hours, and the dried SiO 2 Powder ready for use. Saw industrial pure magnesium ingots into small pieces, the size of which can be put into the crucible, and drill holes on the sawed magnesium ingots, the size of which can be filled with the required SiO 2 The powder shall prevail; the magnesium ingot quality after drilling shall be weighed according to the ratio; the SiO 2 The powder is filled into the drilled holes on the magnesium ingot. The ingot is placed in the crucible with the drilled hole facing up, and the required Sn is added to heat to 750°C for melting, and the melting process is carried out under the protection of Ar gas. When the AZ91 magnesium alloy is completely melted, mechanical stirring is used for ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| tensile strength | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More