Processing method of ultrafine grinding wires

Abstract

The invention discloses a processing method of ultrafine grinding wires. The processing method comprises the following steps of preparation of a treatment solution; preparation of a master batch; andmelt spinning. In the processing method, without using absolute alcohol, the risk that the absolute alcohol is inflammable and explosive is solved; the ultrafine grinding wires do not need to be laidand aired, so that the production space is greatly saved; without tedious programs including manual pelletizing, sieving and drying, the production efficiency is improved; and with a simple and convenient technology, the loss of diamond micropowder is reduced, and the cost is effectively lowered. In addition, for the ultrafine grinding wires produced by the processing method, the content of the diamond micropowder is full in content and uniform in distribution, so that the rigidity and the abrasion resistance of brush wires are improved, and the service life of the brush wires is prolonged; inthe use process, the fine polishing effect of the surface of a workpiece can be better; the diameter can be from 0.08mm to 0.149mm, and the blank of a product in the domestic and foreign markets is filled.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a processing method for ultrafine grinding wires. Background technique [0002] Abrasive wire is generally used for polishing, grinding, cleaning, etc. on the surface of the workpiece. As early as the 1960s, the technology of filling the polyamide base material with inorganic abrasive particles to prepare abrasive wires appeared. This kind of abrasive wire is the inorganic abrasive particles in the wire that play the role of grinding, and the abrasive wires are exposed when they are worn. Inorganic abrasive particles will wear out quickly, but with the wear of the base material, new abrasive particles will be exposed to form a new grinding surface, and the continuous regeneration of the grinding surface can maintain high grinding ability for a long time; high hardness workpiece Surface polishing requires abrasive polishing with higher hardness, and at the same time requires ...

AI Technical Summary

Problems solved by technology

[0004] At present, the original production process of similar grinding wire products is: dilute the coupling agent with absolute alcohol, then stir the diamond powder, manually make the diamond powder into granules, then sieve, and then lay flat in a large enough space to dry for 2-3 Hours, dry and then sieve to filter out the fine powder that does not form particles, and the remaining particles are dried at 200 ℃, and then blended with nylon base material and then melted and extruded by an extruder, stretched and other spinning processes to make brush filaments; However, this method requires tedious and time-consuming procedures such as manual granulation, sieving, drying, etc., and the loss of diamond powder is high, and the cost is high, especially the granulation and blending method in the traditional process. When the prepared diamond particles enter the extruder, due to the difference in specific gravity, the feeding speed is not synchronized and the dispersion is uneven, resulting in uneven sand content per unit volume of the brush filament, and the wear resistance is good and bad, easy to break; and Due to the asynchronous feeding, when the proportion of diamond particles is too large, the extruder will be stuck, which will greatly damage the life of the extruder; so the diameter of the traditional diamond brush wire can only be more than 0.15mm, while the diameter of 0.15mm The grinding effect required for fine workpieces cannot be achieved. If it is less than 0.15mm, either it cannot be produced, or the diamond content is insufficient, and the polishing effect is not good.

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