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Resin binder superhard material grinding wheel for roller high-speed grinding and manufacture method thereof

A superhard material and bonding agent technology, applied in grinding/polishing equipment, abrasives, grinding devices, etc., can solve the problems that the grinding wheel cannot achieve high-speed grinding and low bonding strength, and achieve high-speed and high-efficiency grinding and production. High efficiency and the effect of increasing the rupture speed

Inactive Publication Date: 2014-05-07
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

[0006] The technical problem to be solved by the present invention is that the grinding wheel cannot achieve high-speed grinding due to the low bonding strength between the working layer and the substrate of the cemented carbide roll high-speed grinding wheel. In order to solve the above problems, a resin-bonded Agent superhard material grinding wheel and preparation method thereof

Method used

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  • Resin binder superhard material grinding wheel for roller high-speed grinding and manufacture method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The specification of grinding wheel is φ350mm×30mm (total thickness of grinding wheel)×127mm (inner hole)×6mm (ring width of working layer)×10mm (thickness of working layer);

[0029] Superabrasive: Diamond.

[0030] Its raw material components and weight percentage content are: 140 / 170 mesh diamond 28%, 400 mesh modified phenolic resin powder 20%, 300 mesh copper powder 33%, W40 silicon carbide powder 14%, 300 mesh chromium oxide 3% , 320 mesh calcium oxide 2%. The raw material components and weight percentages of the modified phenolic resin powder are: 88% phenolic resin and 12% epoxy resin.

[0031] Concrete preparation method is as follows:

[0032] 1. After weighing the various raw material powders required by the above formula according to the proportion of the formula, put them into the three-dimensional mixer, add a wetting agent and mix evenly, and the time is 30 minutes;

[0033] 2. Put the working layer obtained in step 1 into the steel mold accord...

Embodiment 2

[0039] The specification of grinding wheel is φ400mm×35mm (total thickness of grinding wheel)×127mm (inner hole)×5mm (ring width of working layer)×12mm (thickness of working layer);

[0040] Superabrasive: nickel-plated cubic boron nitride.

[0041] Its raw material components and weight percentage content are: 325 / 400 mesh nickel-plated cubic boron nitride 55%, 400 mesh ultrafine polyimide resin powder 18%, W10 silicon carbide powder 20%, 400 mesh iron oxide red 2 %, 400 mesh zinc oxide 5%. The nickel plating ratio of nickel-plated cubic boron nitride is 50%.

[0042] Concrete preparation method is as follows:

[0043] 1. After weighing the various binder powders required by the above formula according to the proportion of the formula, put them into the three-dimensional mixer, add the wetting agent N, N dimethylformamide and mix evenly for 60 minutes;

[0044]2. Put the working layer molding material obtained in step 1 into the steel mold according to the reserved pos...

Embodiment 3

[0050] The specification of grinding wheel is φ450mm×40mm (total thickness of grinding wheel)×127mm (inner hole)×10mm (ring width of working layer)×30mm (thickness of working layer);

[0051] Superabrasive: Nickel-plated diamond.

[0052] Its raw material components and weight percentage content are: 120 / 140 mesh nickel-plated diamond 65%, 400 mesh phenolic resin powder 15%, W40 silicon carbide powder 11%, 300 mesh chromium oxide 4%, 320 mesh graphite powder 5%. Concrete preparation method is as follows:

[0053] 1. After weighing the various raw material powders required by the above formula according to the proportion of the formula, put them into the three-dimensional mixer, add a wetting agent and mix evenly, and the time is 50 minutes;

[0054] 2. Put the working layer obtained in step 1 into the steel mold according to the reserved position of the mold, and press it on a hot press with a temperature of 175 ° C and a pressure of 5 MPa for 45 minutes to obtain the blan...

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Abstract

The invention aims at solving the problem that high-speed grinding cannot be realized through a hard alloy roller high-speed grinding wheel with low combination strength between a working layer and a base body and provides a resin binder superhard material grinding wheel for roller high-speed grinding and a manufacture method thereof. The grinding wheel comprises a base body and a grinding wheel working layer. A boss is arranged on the grinding wheel working layer. A groove corresponding to the boss is arranged on the base body. According to the grinding wheel, the boss is arranged on the grinding wheel working layer and is matched with the groove of the base body. The structure is favorable to compact combination of the grinding wheel working layer and the base body, increases the fracture speed restriction to the grinding wheel, realizes high-speed operation of the resin binder superhard material grinding wheel, breaks through restriction of low operation speed to the grinding wheel, and provides a better grinding tool for roller high-speed efficient grinding.

Description

technical field [0001] The invention belongs to the technical field of grinding abrasives, and in particular relates to a resin bond superhard material grinding wheel for high-speed grinding of rolls and a preparation method thereof. Background technique [0002] The roll is a tool for plastically deforming the rolled metal. It is mainly used for processing metal sheets, strips, profiles, etc. It is an important consumable part that determines the efficiency of the rolling mill and the quality of the rolled material. Common roll materials are cast iron, cast steel and hard alloy. In the process of roll production, the grinding of the outer circle of the roll is a crucial link. In order to obtain the roll grinding effect with high precision and high surface finish, in addition to relying on the high-precision roll grinder, it mainly depends on the matching grinding wheel and the appropriate grinding method for the processing roll. [0003] The roll grinding industry usually...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/28B24D3/32B24D3/34B24D18/00
Inventor 丁玉龙丁春生熊华军
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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