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Grinding tool of rubber resin compound binding agent and preparation method of grinding tool

A composite binder and rubber binder technology, applied in grinding/polishing equipment, abrasives, grinding devices, etc., can solve the problems of high cost, complicated process, long time consumption, etc., to improve heat resistance and toughness, Simple process and short mixing time

Inactive Publication Date: 2017-06-13
QUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention adopts banburying and blending method to modify and toughen, the process is complex, time-consuming and costly

Method used

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  • Grinding tool of rubber resin compound binding agent and preparation method of grinding tool

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of rubber resin composite binder abrasive tool comprises the following steps:

[0027] Step 1, mix phenolic resin powder and nitrile rubber powder according to the ratio of 4:1 in V-type tank mixer (phenolic resin powder 20g, nitrile rubber powder 5g), then join in 20g acetone solvent, stirrer Stir for 20 minutes to obtain a rubber-resin bond mixture.

[0028] Step 2, 23g filler, 35g average particle diameter 3.5 micron diamond abrasives, 0.8g pore-forming agent fine naphthalene and 1g wetting agent polyethylene glycol are mixed uniformly in V-type barrel mixer to form composite abrasive grain powder, wherein The filler composition is shown in Table 1.

[0029] Table 1 Filler composition

[0030] Element Weight (g) copper powder 10 Copper clad graphite powder 2 talcum powder 1 Cryolite powder 1.5 Ceria 3 Molybdenum disulfide 2 Calcium Oxide 1.2 magnesium oxide 0.8 Quartz powder 1....

Embodiment 2

[0035] The preparation method of rubber resin composite binder abrasive tool comprises the following steps:

[0036] Step 1, phenolic resin powder and nitrile rubber powder are mixed uniformly (phenolic resin powder 20g, styrene-butadiene rubber powder 8g) according to the ratio of 5:2 in V-type tank mixer, then join in 22g acetone solvent, stirrer Stir for 20 minutes to obtain a rubber-resin bond mixture.

[0037] Step 2, mix 25g of filler, 40g of alumina abrasive with an average particle size of 5 microns, 1g of pore-forming agent sodium bicarbonate and 1g of wetting agent phenolic resin solution in a V-type barrel mixer to form a composite abrasive powder , where the filler components are shown in Table 1.

[0038] Table 1 Filler composition

[0039] Element Weight (g) copper powder 11 Copper clad graphite powder 2.5 talcum powder 1.5 Cryolite powder 1.5 Ceria 3 Molybdenum disulfide 2 Calcium Oxide 1.2 magnesium o...

Embodiment 3

[0044] The preparation method of rubber resin composite binder abrasive tool comprises the following steps:

[0045] Step 1, mix epoxy resin E51 and polysulfide rubber in a ball mill according to the ratio of 3:2 (epoxy resin E51 18g, polysulfide rubber 12g), then add it to 25g of dimethylformamide solvent, stir with a mixer After 25 minutes, a rubber-resin bond mixture was obtained.

[0046] Step 2, 30g of filler, 32g of diamond abrasive with an average particle size of 2.5 microns, 18g of silicon carbide abrasive, and 1g of foaming agent ABIN (azobisisobutyronitrile) are mixed uniformly in a V-type tank mixer to form a composite mill Granular powder, wherein the filler composition is shown in Table 1.

[0047] Table 1 Filler composition

[0048] Element Weight (g) copper powder 15 Copper clad graphite powder 3 talcum powder 2 Cryolite powder 1.5 Ceria 3 Molybdenum disulfide 2 Calcium Oxide 1.2 magnesium oxide 0.8 ...

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Abstract

The invention discloses a wet-process blended rubber resin composite binder abrasive tool and a preparation method thereof. The abrasive tool is composed of the following components: by weight, 25-100 parts of abrasive grains, 5-30 parts of rubber bond, 10-35 parts of resin bond, 15-55 parts of filler, 20-50 parts of solvent, 1-30 parts of wetting agent 3 parts, 0.5-3 parts of pore-forming agent, 0.1-1 part of curing agent. The rubber resin composite binder mixture is obtained by wet blending the rubber powder and the resin powder in a solvent, and the obtained rubber resin composite binder mixture is mixed with abrasives, fillers and pore-forming agents, dried, pulverized, and sieved to obtain The mixed powder is added with a curing agent and then hot-pressed and solidified to prepare a rubber resin composite binder abrasive tool. The abrasive tool combines rubber and resin organically to make a composite bond that has both advantages and avoids the disadvantages of both. It has good heat resistance and corrosion resistance, large porosity, easy to maintain contour, high strength and high elasticity. , At the same time, wet blending is adopted, the mixing is more uniform, and it is not easy to agglomerate.

Description

technical field [0001] The invention relates to a resin-rubber composite binder abrasive tool and a preparation method thereof, belonging to the fields of grinding, grinding and polishing. Background technique [0002] Resin bond is an organic bond. The resin bond itself has good elasticity, impact resistance and polishing effect. In addition, the resin abrasive tool has good self-sharpening performance and is not easy to be blocked; it is seldom trimmed after one trimming, and the grinding efficiency is high, the grinding roughness is low, and the grinding temperature is low. Because of the series of superior properties of resin bonded abrasives, they are widely used in superabrasive abrasives. Resin grinding tools are used for semi-fine grinding and fine grinding of hard alloy and steel-bonded hard alloy workpieces and some non-metallic materials. [0003] The rubber bond is an abrasive tool made of artificial synthetic rubber or natural rubber as the main component, ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/26B24D3/32B24D3/34B24D18/00
CPCB24D3/26B24D3/32B24D3/344B24D18/0009
Inventor 周兆忠李帅冯凯萍倪成员郁炜尹涛许庆华
Owner QUZHOU UNIV
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