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High-accuracy composite type grinding crankshaft grinding wheel

A compound, high-precision technology, applied in the direction of abrasives, grinding devices, grinding/polishing equipment, etc., can solve the problems of different particle sizes of abrasives, large market demand for grinding wheels, etc., to save foreign exchange, save purchase time, cost reduction effect

Inactive Publication Date: 2010-06-16
沈阳科锐特砂轮有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the particle size of the abrasives is different, and the hardness of the three layers is also different. The market demand for such difficult grinding wheels is relatively large.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Use chrome corundum (PA60) on the upper and lower sides of the high-precision compound crankshaft grinding wheel, 100 parts by weight, 19 parts of vitrified bond, 2 parts of binder, 5 parts of wetting agent, and 100 parts of white corundum (WA60) as the intermediate material , 14 parts of vitrified binder, 2.5 parts of adhesive, and 4 parts of wetting agent are accurately weighed and mixed according to the compounding process, and the mixed molding material is pressed according to the specifications and sizes required by the user and a suitable press is selected for blanking. Pressing, and then drying, firing, processing, inspection, storage, packaging and other processes to produce products that meet the user's requirements.

Embodiment 2

[0044] Use 100 parts by weight of chrome corundum (PA80), 17 parts of vitrified bond, 2.5 parts of binder, 3.5 parts of wetting agent, and 100 parts of white corundum (WA80) as the intermediate material for the upper and lower ends of the high-precision composite grinding crankshaft grinding wheel. , 13 parts of vitrified binder, 3 parts of adhesive, and 3.5 parts of wetting agent. Accurately weigh and mix according to the compounding process respectively. The mixed molding material is made according to the specifications and sizes required by the user and a suitable press is selected for blanking. Pressing, and then drying, firing, processing, inspection, storage, packaging and other processes to produce products that meet the user's requirements.

Embodiment 3

[0046] Use chrome corundum (PA90) on the upper and lower ends of the high-precision compound crankshaft grinding wheel, 100 parts by weight, 15 parts of vitrified bond, 3 parts of binder, 3.3 parts of wetting agent, and the intermediate material is white corundum (WA90) 100 12 parts, 12 parts of ceramic binder, 2.5 parts of binder, 3.1 parts of wetting agent, accurately weigh and mix according to the compounding process, and use the mixed molding material according to the specifications and sizes required by the user and select a suitable press for blanking Pressing, and then drying, firing, processing, inspection, storage, packaging and other processes to produce products that meet the user's requirements.

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PUM

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Abstract

The invention relates to a high-accuracy composite type grinding crankshaft grinding wheel which has three layers of an upper layer, a middle layer and a lower layer. The high-accuracy composite type grinding crankshaft grinding wheel is characterized in that an abrasive at the upper layer of the grinding wheel is rubing grain (PA), an abrasive at the middle layer of the grinding wheel is white alundum (WA), and an abrasive at the lower layer of the grinding wheel is rubing grain (PA); the grinding wheel also comprises a special ceramic bond, wherein the ceramic bond comprises the following chemical components: 17-23% of Al2O3, 50-55% of SiO2, 4-8% of K2O, 4-8% of Na2O, less than 1% of MgO, less than 1% of CaO, less than 1% of Fe2O3, less than 1% of TiO2 and 8-13% of B2O3. The invention meets the requirements of users, can replace the imported grinding wheels with the similar type, saves the merchandise purchase time of users, also lowers the cost and saves the foreign exchange for China.

Description

technical field [0001] The invention relates to a crankshaft grinding wheel, in particular to a high-precision composite crankshaft grinding wheel, which belongs to the manufacturing technology of crankshaft grinding wheels. Background technique [0002] Known crankshaft grinding wheels are mostly used on domestic grinding machines, and the processing of crankshafts belongs to sequential processing, that is, different positions of crankshafts are ground using emery wheels of different specifications. [0003] Most of the workpiece material is alloy cast iron 45 # Steel and 42CrMo etc. [0004] Workpiece hardness: HB24-302, HRC48-53, HRC56-62, etc. [0005] Roughness: Ra 0.8-1.25μm. [0006] Grinding wheel specification: 1100×32~55×304.8. [0007] Abrasive material: brown corundum (A), white corundum (WA), brown corundum and white corundum mixed abrasive (A / WA), single crystal corundum (SA), etc. [0008] Abrasive grain size: 46 # -100 # [0009] Grinding wheel hardne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/18C09K3/14B24D18/00
Inventor 王统洲叶桂英战世信王爱民张继勇周岩杨朝斌
Owner 沈阳科锐特砂轮有限责任公司
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