Manufacturing method for high-gravity alloy feed
A technology of high specific gravity and alloy, which is applied in the field of preparation of high specific gravity alloy feed, can solve problems such as the influence of the cover body, and achieve the effects of easy operation, good fluidity and uniform particle size distribution.
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Embodiment 1
[0023] A preparation method for a high specific gravity alloy feed, comprising:
[0024] (1) Weigh the powder raw materials for preparing W-Ni-Cu, W-Cu or W-Ni-Fe series high specific gravity alloys in proportion, and mix them by ball milling for 30 hours. In this example, the powder raw materials of W-Cu series high specific gravity alloys are used .
[0025] (2) Prepare a binder-solvent solution, the binder in the binder-solvent solution includes one or more of silane coupling agent, titanate coupling agent, polyethylene glycol, polyvinyl alcohol Kind, described solvent is a kind of in water, gasoline, alcohol; The binding agent in the binding agent-solvent solution in the present embodiment is made of silane coupling agent, and described solvent is alcohol; The binding agent and solvent The mass ratio is 1:3, and the amount of binder added is 2.0wt% of the metal powder raw material.
[0026] (3) Add the binder-solvent solution into the uniformly mixed metal powder and sti...
Embodiment 2
[0035] This example is a comparative example of Example 1. The difference between this example and Example 1 is that the preparation process of the W-Cu feedstock in this example is different, and its specific preparation process is as follows:
[0036] (1) Metal powder pretreatment: anneal the powder raw material at a temperature range of 200°C to 250°C to remove the oxide layer on the surface of the powder, reduce the content of carbon and other impurities, eliminate the work hardening of the powder, and stabilize the crystal structure of the powder;
[0037] (2) Metal powder mixing: Mix the metal powder finished in the annealing area in the conical mixer according to the designed ratio, the rated machine speed is 300-350 rpm, and the mixing time is 5-7 hours;
[0038] (3) Metal powder granulation: the step is to add 0.2% to 0.5% organic binder to the mixed metal powder, and granulate the mixed powder in the granulation equipment to form granulated composite metal powder pow...
Embodiment 3
[0041] The difference between this embodiment and Example 1 is that the amount of binder added in the process of preparing W-Cu feeding material in this embodiment is different, and the amount of binder added in this embodiment is the same as that in Example 1, that is, In this embodiment, the binder in the binder-solvent solution is composed of a silane coupling agent, and the solvent is alcohol; the mass ratio of the binder to the solvent is 1:3, and the amount of the binder added is metal powder raw material of 2.0wt%.
[0042] After testing, the bulk density of the W-Cu feed reaches 3.67g / cm3. The relative density of the alloy product liner is 97.3%. The results of this experiment show that the effect of the preferred binder-solvent solution used in the present invention is much higher than that of the binder in the prior art, further improving product quality.
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Abstract
Description
Claims
Application Information
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