Preparation method and application of in-situ synthesis MgO enhancing Mg-Zn-Ca alloy
An in-situ self-generated and alloyed technology, applied in the field of biomedicine, can solve the problems of increased cost of alloying element Ca and complex surface modification treatment, and achieve the effect of optimizing mechanical properties, good clinical performance requirements, and meeting clinical performance requirements
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Embodiment 1
[0040] 1. The preparation of in-situ self-generated MgO reinforced Mg-Zn-Ca alloy, the steps are as follows:
[0041] 1) Preparation of raw materials
[0042] Mg blocks with a purity of not less than 99.99%, Zn particles with a purity of not less than 99.99%, and CaO particles with a purity of not less than 99.99% are used as base materials for smelting. The components of each raw material are: 10g of CaO and 50g of Zn , Mg is 940g.
[0043] 2) Preparation process of in situ self-generated MgO reinforced Mg-Zn-Ca alloy
[0044] Using compound furnace (see structure figure 1 ) to smelt the material, the preparation process is as follows:
[0045] Batching, washing, oven oven, smelting with protective gas, high shear stirring, ultrasonic stirring, standing and casting;
[0046] The specific process is as follows:
[0047] ①Clean the furnace one day before use, bake to 250°C, and cut off the power.
[0048] ② Add Mg blocks and Zn particles proportioned by weight percentage ...
Embodiment 2
[0060] 1. The preparation of in-situ self-generated MgO reinforced Mg-Zn-Ca alloy, the steps are as follows:
[0061] 1) Preparation of raw materials
[0062] Mg blocks with a purity of not less than 99.99%, Zn particles with a purity of not less than 99.99%, and CaO particles with a purity of not less than 99.99% are used as base materials for smelting. The components of each raw material are: 5g of CaO and 30g of Zn , Mg is 965g.
[0063] 2) Preparation of in situ self-generated MgO reinforced Mg-Zn-Ca alloy
[0064] Preparation process is with embodiment 1; Concrete process is as follows:
[0065] ①Clean the furnace one day before use, bake to 350°C, and cut off the power.
[0066] ② Add Mg blocks and Zn particles proportioned by weight percentage into the graphite crucible, and the volume percentage is 99.6% N 2 with 0.4% SF 6 The mixed gas is protected, and the temperature is raised to the melting temperature of 720°C at a rate of 8°C / min.
[0067] ③CaO particles ar...
Embodiment 3
[0079] 1. The preparation of in-situ self-generated MgO reinforced Mg-Zn-Ca alloy, the steps are as follows:
[0080] 1) Preparation of raw materials
[0081] Mg blocks with a purity of not less than 99.99%, Zn particles with a purity of not less than 99.99%, and CaO particles with a purity of not less than 99.99% are used as base materials for smelting. The components of each raw material are: 30g of CaO and 40g of Zn , Mg is 930g.
[0082] 2) Preparation of in situ self-generated MgO reinforced Mg-Zn-Ca alloy
[0083] Preparation process is with embodiment 1; Concrete process is as follows:
[0084] ①Clean the furnace one day before use, bake to 250°C, and cut off the power.
[0085] ② Add Mg blocks and Zn particles proportioned by weight percentage into the graphite crucible, and the volume percentage is 99.6% N 2 with 0.4% SF 6 The mixed gas is protected, and the temperature is raised to a melting temperature of 700°C at a rate of 12°C / min.
[0086] ③CaO particles ar...
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