Method for fire polishing of rhinestone pearl blank by means of composite powder medium

A technology for rhinestone bead blanks and composite powder, which is applied to surface polishing machine tools, machine tools suitable for grinding workpiece edges, grinding/polishing equipment, etc. Improve production environment, improve roundness and efficiency, and easy to clean

Active Publication Date: 2016-03-09
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simply using graphite powder as the fire throwing medium has the disadvantages of graphite powder being oxidized and consumed, rhinestone bead blanks are difficult to clean, and there is a lot of flying dust

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 200-mesh graphite powder, alumina powder with a particle size of less than 60 μm, and rhinestone bead blanks into the rotating metal cylinder at a weight ratio of 1:4:95, and the radiation of the heating element on the outside of the rotating metal cylinder Under the condition, the composite powder medium and the rhinestone bead blank are radiated to raise the temperature, and the temperature is 600°C; the softened rhinestone bead blank is repeatedly rolled and moved along with the rotation of the metal tube, and the Huff line and ellipticity on the surface Or the surface is not smooth and other defects are gradually eliminated, and the sphericity is improved. The rhinestone bead blank and composite powder medium that meet the sphericity requirements are discharged from the lower end of the metal cylinder together, and are divided into qualified rhinestone bead blanks and composite powder after screening. Medium; Composite powder medium is again paired with out-of-ro...

Embodiment 2

[0022] Add 600-mesh graphite powder, calcium carbonate powder with a particle size of less than 60 μm, and rhinestone beads into the rotating metal cylinder at a weight ratio of 4:1:95. Under the radiation of the heating element outside the rotating metal cylinder, The composite powder medium and the rhinestone bead blank are heated by radiation to raise the temperature, and the temperature is 1000°C; the softened rhinestone bead blank is repeatedly rolled and moved along with the rotation of the metal tube, and the Huff line, ovality or surface Defects such as unsmoothness are gradually eliminated, and the sphericity is improved. The rhinestone bead blank and composite powder medium that meet the sphericity requirements are discharged from the lower end of the metal cylinder together, and are divided into qualified rhinestone bead blanks and composite powder medium after screening; The composite powder medium is again paired with out-of-round rhinestone beads and recycled for ...

Embodiment 3

[0024] Add 400-mesh graphite powder, alumina powder and calcium carbonate powder with a particle size of less than 60 μm, and rhinestone beads into the rotating metal cylinder at a weight ratio of 3:1:2:94. Under the radiation of the outer heating element, the composite powder medium and the rhinestone bead blank are radiated and heated to a temperature of 850°C; the softened rhinestone bead blank is repeatedly rolled and moved along with the rotation of the metal tube, and the surface of the rhinestone bead Defects such as Huff lines, ellipticity or surface roughness are gradually eliminated, and the sphericity is improved. The rhinestone bead blanks and composite powder media that meet the sphericity requirements are discharged from the lower end of the metal cylinder together, and are classified into qualified ones after screening. Rhinestone bead blank and composite powder medium; composite powder medium is matched with out-of-round rhinestone beads again, and is recycled f...

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PUM

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Abstract

The invention discloses a method for fire polishing of a rhinestone pearl blank by means of a composite powder medium, and belongs to the technical field of rhinestone pearl blank machining. The method comprises the step that the composite powder medium and the rhinestone pearl blank are added into a rotary metal cylinder after being evenly mixed and are heated and subjected to fire polishing, wherein the composite powder medium comprises graphite powder and inorganic powder, and the weight ratio of the graphite powder to the inorganic powder to the rhinestone pearl blank is (1-4):(1-6):(93-96). According to the method for fiber polishing of the rhinestone pearl blank by means of the composite powder medium, the fire polishing circular degree and efficiency of the rhinestone pearl blank can be improved, the rhinestone spheroidizing and finishing time can be shortened, the working efficiency of a fire polishing furnace can be improved, meanwhile, the composite powder medium can be recycled, graphite powder oxidation consumption can be reduced, the production environment can be improved, and the spheroidized rhinestone pearl blank can be easy to clean.

Description

technical field [0001] The invention belongs to the technical field of rhinestone bead blank processing, and in particular relates to a method for fire-throwing a rhinestone bead blank by using a composite powder medium. Background technique [0002] The glass rhinestone bead blank formed by mold pressing can be in the shape of sphere, facet, etc., and the surface has defects such as the Hough line of the mold, deformation caused by mold dislocation, and surface roughness caused by pitting on the mold surface. However, the subsequent mechanical cutting and grinding of the rhinestone bead blanks requires the highest possible roundness of the rhinestone bead blanks; and with the improvement of the mechanical cutting speed and the degree of automation, the requirements for the roundness of the bead blanks are even higher. For this reason, it is necessary to trim the shape and roundness of the rhinestone bead blank formed by the mold, that is, to round it. By rounding the shape...

Claims

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Application Information

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IPC IPC(8): B24B31/02B24B31/14C09G1/02
CPCB24B31/02B24B31/14C09G1/02
Inventor 程俊华赵国祥蔡树元
Owner YANCHENG INST OF TECH
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