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
CN101733710AInactive Publication Date: 2010-06-16沈阳科锐特砂轮有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
沈阳科锐特砂轮有限责任公司
Publication Date
2010-06-16
Estimated Expiration
Not applicable · inactive patent
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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.
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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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