Preparation process of high manganese steel based composite material
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A preparation process and composite material technology, which is applied in the field of high manganese steel matrix composite material preparation process, can solve the problems of limited performance improvement of high manganese steel and inability to fully adapt to medium and low impact stress conditions, so as to avoid floating and segregation , good interface bonding effect, and the effect of improving wear life
Inactive Publication Date: 2010-05-12
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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[0004] It can be seen that the current patents on high manganese steel mainly focus on the alloying and rare earth modification of high manganese steel using t
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[0030] Example 1: Making the overall composite material blanking liner
[0031] Such as figure 1 , figure 2 , image 3 with Figure 4 As shown, the specific steps are as follows:
[0032] (1) Molybdenum wire mesh 1 is woven with 0.5mm molybdenum wire with a spacing of 2mm;
[0033] (2) The molybdenum wire mesh 1 is cut into a rectangle according to the length and height of the blanking liner;
[0034] (3) Pickling the rectangular molybdenum wire mesh 1;
[0035] (4) Making mold 2 according to the requirements of casting process;
[0036] (5) Stack the cut molybdenum wire mesh 1 in multiple layers and place it into the water glass sand mold 2 cavity;
[0037] (6) Smelt high manganese steel 3 to obtain liquid high manganese steel;
[0038] (7) The liquid high manganese steel 3 is poured into the mold by the gravity casting method, so that the liquid high manganese steel fills the voids of the net-shaped three-dimensional framework to obtain the molybdenum wire-high manganese steel binary ma...
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[0042] Example 2: Making partial composite material blanking liner
[0043] Such as figure 1 with Figure 5 As shown, the specific steps are as follows:
[0044] (1) Molybdenum wire mesh 1 is woven with 2.0mm molybdenum wire, and the molybdenum wire spacing is 10mm;
[0045] (2) The molybdenum wire mesh 1 is cut into a rectangle according to the length of the blanking liner and half the height;
[0046] (3) Pickling the rectangular molybdenum wire mesh;
[0047] (4) Making mold 2 according to the requirements of casting process;
[0048] (5) Stack the cut molybdenum wire mesh 1 in multiple layers and place it into the water glass sand mold 2 cavity;
[0049] (6) Smelt high manganese steel 3 to obtain liquid high manganese steel;
[0050] (7) Use gravity casting method to pour liquid high manganese steel 3 into the mold to obtain partial molybdenum wire-high manganese steel binary material preform;
[0051] (8) After cooling off and cleaning, put the local molybdenum wire-high manganese ste...
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Abstract
The invention discloses a preparation process of a high manganese steel based composite material, which mainly includes the following steps: weaving a molybdenum wire mesh by using molybdenum wires, and manufacturing a reticular three-dimensional framework structure by cutting, multilayer rolling or superposing; manufacturing a casting mold according to casting process requirements, and pre-placing the molybdenum wire three-dimensional reticular framework into a cavity of the casting mold; smelting high manganese steel to obtain liquid high manganese steel which is poured into the casting mold, and obtaining molybdenum wire-high manganese steel binary material preform after cooling and clearing; and placing the molybdenum wire-high manganese steel binary material preform into a heat treatment furnace, heating to a temperature at which carbide is formed, preserving heat, and obtaining molybdenum carbide particle reinforced high manganese steel based composite material. The composite material prepared by using the method fully plays the high abrasion resistance of molybdenum carbide hard phase and the good toughness of the high manganese steel, the regulation and control are convenient, and the process is reliable, thus solving the problems of incomplete reaction of the composite material, the uneven distribution of reinforced phase particles, the pollution weakening of reinforced phase interfaces and the like; and the composite material can be widely applied in the fields of wear resistance such as mines, electric power, metallurgy, coal, building materials and the like.
Description
technical field [0001] The invention belongs to the technical field of metal-based composite materials, and in particular relates to a preparation process of high-manganese steel-based composite materials. Background technique [0002] High manganese steel has high strength, plasticity, low temperature toughness, work hardening, and impact resistance safety. As a wear-resistant material, in terms of resistance to abrasive wear or chisel wear under strong impact and high pressure, its wear resistance under high impact stress conditions is unmatched by other materials. Wear-resistant products such as liners, hammer heads, screen bars, and jaw plates made of high manganese steel have been widely used in metallurgy, mining, building materials, railways, electric power, coal and other mechanical equipment for a long time. However, it has been found in practice that the wear resistance of high manganese steel is conditional, and the high wear resistance of high manganese steel ca...
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IPC IPC(8): C22C47/08C22C101/02
Inventor 许云华岑启宏马幼平蔡安江刘文刚牛立斌徐英鸽
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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