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Casting molding micropowder diamond grinding wheel for gem polishing and preparation method thereof

A diamond grinding wheel and casting molding technology, which is applied in the direction of grinding/polishing equipment, bonded grinding wheel, metal processing equipment, etc., can solve the problems of uncontrollable large pores, loose tissue structure, etc., and achieve uniform distribution, compact overall structure, and process The effect of easy operation

Active Publication Date: 2018-02-13
ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the casting molding formula and process involved in the present invention solve the problems of uncontrollable large pores and loose structure in the molding process under normal pressure conditions

Method used

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  • Casting molding micropowder diamond grinding wheel for gem polishing and preparation method thereof
  • Casting molding micropowder diamond grinding wheel for gem polishing and preparation method thereof
  • Casting molding micropowder diamond grinding wheel for gem polishing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of cast molding micropowder diamond grinding wheel for gemstone polishing, such as figure 1 As shown, the abrasive layer 1 including the grinding wheel matrix 2, the abrasive material and the bonding agent is mainly used for supporting the grinding wheel and is the carrier of the grinding wheel; the abrasive is mainly for grinding and is the "teeth" of the grinding wheel; the bonding agent makes the abrasive bond Together, it forms a certain shape with the substrate and has a good holding strength for abrasives. The bonding agent and the abrasive form an abrasive layer on the substrate through a casting molding process, and are used in the polishing process of gemstones.

[0029] The grinding wheel base is aluminum alloy; the aluminum alloy base has a certain strength, on the one hand firmly bears the abrasive layer, and on the other hand is installed and fixed with the spindle of the machine tool, so as to ensure that the grinding wheel can polish the gemstone a...

Embodiment 2

[0040] A casting molded micropowder diamond grinding wheel for gemstone polishing. The raw materials and parts by weight of the abrasive layer are respectively: the abrasive is micropowder diamond and silicon carbide micropowder, the particle size of the micropowder diamond is M1 / 2, 22.5 parts; the particle size of the silicon carbide micropowder is W1.5, 19.5 parts; graphite powder is 3.6 parts; unsaturated polyester resin resin liquid is 191 resin, 52.8 parts; curing agent selects methyl ethyl ketone peroxide and cobalt naphthenate, the two are 2.5 parts altogether, the quality of methyl ethyl ketone peroxide and cobalt naphthenate The ratio is 2:1; the defoamer is BYK-A555, 0.5 parts.

[0041] Casting process parameters are as follows:

[0042] 1. After weighing the above-mentioned diamond micropowder abrasive, silicon carbide micropowder abrasive and graphite powder according to the formula ratio, put them into a glass bottle and shake for 2 minutes to obtain a mixed abrasiv...

Embodiment 3

[0051] A casting molded micropowder diamond grinding wheel for gemstone polishing. The raw materials and parts by weight of the abrasive layer are respectively: the abrasive material is micropowder diamond and silicon carbide micropowder, the particle size of the micropowder diamond is M3 / 6, 26.4 parts; the particle size of the silicon carbide micropowder is W1.5, 22 parts; graphite powder is 4.2 parts; unsaturated polyester resin resin liquid is 191 resin, 52.8 parts; curing agent selects methyl ethyl ketone peroxide and cobalt naphthenate, the two are 2.5 parts altogether, the quality of methyl ethyl ketone peroxide and cobalt naphthenate The ratio is 2:1; the defoamer is BYK-A555, 0.5 parts.

[0052] Casting process parameters are as follows:

[0053] 1. After weighing the above-mentioned diamond micropowder abrasive, silicon carbide micropowder abrasive and graphite powder according to the formula ratio, put them into a glass bottle and shake for 2 minutes to obtain a mixe...

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Abstract

A casting-molded superfine diamond grinding wheel for jewel polishing comprises a grinding wheel base body and a grinding material layer composed of grinding materials and a binding agent. The grinding material layer comprises, by weight, 18-28 parts of superfine diamond, 18.6-22 parts of silicon carbide micro powder, 50-60 parts of unsaturated polyester resin liquid, 1.5-3 parts of a curing agent, 0.3-1 part of an antifoaming agent and 2-5 parts of padding. In machining, the materials of the grinding material layer only need to be mixed and heated to obtain mixed liquid, the base body and a mold are heated to 85-95 DEG C, the mixed liquid is quickly and evenly poured into a mold cavity, and the finished grinding wheel can be obtained after 1-2 hours of heat preservation. Pores of the grinding wheel manufactured through the formula and the casting molding process are smaller than 1 mm and are evenly distributed, and the grinding material layer is compact in overall structure; according to the casting molding process, vacuumizing equipment is not needed, the grinding wheel can be obtained under the normal pressure condition, and process operation is simple and convenient.

Description

technical field [0001] The invention belongs to the field of superhard materials and products in mechanical processing, and in particular relates to a resin bond micropowder diamond grinding wheel for polishing artificial gemstones (including zircon, crystal, etc.) and a preparation method thereof. Background technique [0002] With the improvement of domestic people's living standards, artificial gemstones (including zircon, crystal, etc.) are more and more used in high-end clothing, handbags, lamps, jewelry, accessories, etc. Regional gem processing clusters. The grinding process of gemstones is generally divided into three processes, namely rough grinding, semi-finishing and polishing processes. The polishing process currently uses cerium oxide abrasive polishing discs as the carrier, with the addition of free diamond solution, in which the free diamond abrasive acts as a carrier Polishing effect (belongs to the free grinding method). In the gem working industry, cerium...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D7/00B24D3/00B24D3/28B24D18/00
CPCB24D3/00B24D3/28B24D7/00B24D18/0009
Inventor 孙冠男史冬丽李克华史林峰
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD