Radiator and preparation method thereof
A heat sink, thermoplastic material technology, applied in the field of heat sink and its preparation, can solve the problems of large amount of production, high energy consumption, environmental hazards, etc., and achieve the effects of reducing pollution, low preparation temperature, and reducing energy consumption
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[0051] The embodiment of the present application also provides a manufacturing method of the heat sink. see figure 1 , the preparation method of the radiator includes the following steps 110 and 120.
[0052] In step 110, 300-500 parts by mass of ceramic particles and 5-15 parts by mass of binder are uniformly mixed, and the material of the binder is a thermoplastic material.
[0053] In one embodiment, the step 110 of uniformly mixing 300-500 parts by mass of ceramic particles and 5-15 parts by mass of binder includes the following process:
[0054] Add 300-500 parts by mass of ceramic particles and 5-15 parts by mass of binder into a high-speed mixer for mixing, the mixing time is 15 seconds to 30 seconds, and the speed of the high-speed mixer is 1000r / min-1500r / min . Mixing can be repeated 3 to 6 times. In an exemplary embodiment, when adding 300-500 parts by mass of ceramic particles and 5-15 parts by mass of binder into a high-speed mixer for mixing, the mixing time c...
Embodiment 1
[0088] First, 500 parts by mass of ceramic particles and 10 parts by mass of a binder were dried in a drying oven at 60° C. for 3 hours. The ceramic particles include aluminum nitride particles with a particle size of 30um and aluminum nitride particles with a particle size of 3um, and the mass ratio of aluminum nitride particles with a particle size of 30um to aluminum nitride particles with a particle size of 3um is 1:1 . The material of the binder is nylon 46, and the particle size of the binder is 2um.
[0089] Subsequently, the ceramic particles and the binder were placed in a high-speed mixer, the mixing time was 15 seconds, the speed of the high-speed mixer was 2500r / min, and the mixing was repeated 4 times to obtain a mixture of the ceramic particles and the binder;
[0090] Subsequently, the obtained mixture is filled into the cavity of the mould, and the mixture is pressurized by the pressure head;
[0091] Subsequently, the mold is heated, and the heating program ...
Embodiment 2
[0095] First, 400 parts by mass of ceramic particles and 8 parts by mass of a binder were dried in a drying oven at 75° C. for 3 hours. The ceramic particles include aluminum nitride particles and aluminum oxide particles, and the mass ratio of the aluminum oxide particles to the aluminum nitride particles is 3:1. The aluminum nitride particles include aluminum nitride particles with a particle size of 50um and alumina particles with a particle size of 4um, and the mass ratio of the aluminum nitride particles with a particle size of 50um to the alumina particles with a particle size of 4um is 1:2. The particle size of alumina particles is 15um. The material of the binder is high-density polyethylene, and the particle size of the binder is 3um.
[0096] Subsequently, the ceramic particles and the binder are placed in a high-speed mixer, the mixing time is 20 seconds, the speed of the high-speed mixer is 2000r / min, and the mixture is repeated 5 times to obtain a mixture of the ...
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