Preparation process of heat dissipation and abrasion resistance material
A preparation process and a technology for wear-resistant materials, applied in the field of heat-dissipating wear-resistant materials preparation technology, can solve the problems of difficulty in manufacturing wear-resistant parts, difficult and precise machining, etc., and achieve good shape and dimensional accuracy controllability, low operation difficulty, and sintering. low temperature effect
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[0012] Example 1
[0013] Step 1: Add Fe 2 O 3 , Mn 3 O 4 Weigh with ZnO according to the mass ratio of 100 / 21 / 23, mix well, and heat to 850 in a muffle furnace o C×60min pre-fired, pulverized and ground after cooling, and sieved with 200-mesh and 300-mesh sieves to obtain (200~300) mesh pre-fired material.
[0014] Step 2: The pre-fired material and 150 mesh FeSi6.5 powder are mixed uniformly at a mass ratio of 10 / 100, and after water is added to granulate, the parts are molded under a pressure of ≥1500Mpa (the current status of the parts depends on the mold).
[0015] Step 3: The part blank is quickly sintered into a finished part in an intermediate frequency induction heating furnace. The intermediate frequency induction heating frequency is 25kHz, the heating power is 4kW, and the heating is 5min. The parts after rapid sintering have higher hardness (≥HRC50) and good heat transfer performance.
Example Embodiment
[0016] Example 2
[0017] Step 1: Add Fe 2 O 3 , Mn 3 O 4 Weigh with ZnO according to the mass ratio of 100 / 21 / 23, mix well, and heat to 850 in a muffle furnace o C×60min pre-fired, pulverized and ground after cooling, and sieved with 200-mesh and 300-mesh sieves to obtain (200~300) mesh pre-fired material.
[0018] Step 2: Pre-fired material and 150 mesh Fe78Si13B9 (in which the content is atomic percentage) amorphous powder (flaky) is mixed uniformly at a mass ratio of 10 / 100, and after water is added for granulation, it is molded into part blanks (parts) under a pressure of ≥1500Mpa The status depends on the mold).
[0019] Step 3: The part blank is quickly sintered into a finished part in an intermediate frequency induction heating furnace. The intermediate frequency induction heating frequency is 25kHz, the heating power is 4kW, and the heating is 5min. The parts after rapid sintering have higher hardness (≥HRC52) and good heat transfer performance.
Example Embodiment
[0020] Example 3
[0021] Step 1: Add Fe 2 O 3 , Mn 3 O 4 Weigh with ZnO according to the mass ratio of 100 / 21 / 23, mix well, and heat to 850 in a muffle furnace o C×60min pre-fired, pulverized and ground after cooling, and sieved with 200-mesh and 300-mesh sieves to obtain (200~300) mesh pre-fired material.
[0022] Step 2: Pre-fired material and 150 mesh Fe73.5Cu1Nb3Si13.5B9 (in which the content is atomic percentage) amorphous powder (flaky) is mixed uniformly at a mass ratio of 10 / 100, and after water is added to granulate, it is molded under a pressure of ≥1500Mpa Rough parts (the status of the parts depends on the mold).
[0023] Step 3: The part blank is quickly sintered into a finished part in an intermediate frequency induction heating furnace. The intermediate frequency induction heating frequency is 25kHz, the heating power is 4kW, and the heating is 5min. The parts after rapid sintering have higher hardness (≥HRC48) and good heat transfer performance.
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