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Resin cement cubic boron nitride grinding wheel and preparation method thereof

A technology of cubic boron nitride and bonding agent, which is applied in the direction of bonded grinding wheels, manufacturing tools, metal processing equipment, etc., can solve problems such as narrow application range, achieve good sharpness, prevent clogging, and increase the effect of grinding ratio

Active Publication Date: 2008-12-31
广东奔朗新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above process is only used for vitrified bond, and this structure can only be processed by the cylindrical grinding wheel, so the application range is narrow

Method used

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  • Resin cement cubic boron nitride grinding wheel and preparation method thereof
  • Resin cement cubic boron nitride grinding wheel and preparation method thereof
  • Resin cement cubic boron nitride grinding wheel and preparation method thereof

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Referring to FIG. 8 , the resin-bonded cubic boron nitride grinding wheel includes a grinding wheel base 5 and an abrasive layer 11 , and the abrasive layer is arranged on the outer wall of the grinding wheel base 5 and the periphery of the upper and lower end surfaces. The section of the abrasive layer 11 is upside down U-shaped. The grinding wheel base 5 is in the shape of a disc, and the surface in contact with the abrasive layer is provided with a cog 5.1 for consolidation, as shown in Figure 2, with a protrusion 5.2 in the center of both ends.

[0022] The preparation method of the resin bonded cubic boron nitride grinding wheel is characterized in that the abrasive cubic boron nitride with a volume percentage of 25-40% is first wetted with a coupling agent, and then mixed with Dialok939p resin 25-35%, fluorine salt grinding aids 2-5%, 2-5%...

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Abstract

The invention relates to a resinoid wedding agent cubic boron nitride grinding wheel and a manufacturing method thereof, the resinoid wedding agent cubic boron nitride grinding wheel comprises a grinding wheel matrix and a grinding layer, the grinding layer is arranged on the external wall of the grinding wheel matrix and peripheries of an upper end face and a lower end face; the grinding layer includes 12-40% of cubic boron nitride (nickel plating), 25-50% of Dialok939p resin, 1-10% of villaumite grinding aid, 1-10% of a solid lubricant filler, 10-30% of a powder filler with high thermal conductivity and 1-15% of oxide filler by volume percentage of the grinding layer. A specially designed hot pressing dies and separately batch feeding method are adopted, which causes the pressed products to have homogeneous structure and consistent density; the formula of the grinding wheel is simple, and the designed die has the advantages of simple and reasonable structure, easy die filling and die release, the product obtained has high once-pass rate, homogeneous structure and consistent density; the grinding wheel has good grinding performance and long service life, can perform peripheral grinding and end face grinding, and is equivalent to three grinding wheels with the same specification, the matrix and making cost are saved, production cost is reduced, the product value is improved.

Description

technical field [0001] The invention relates to a resin bonded cubic boron nitride grinding wheel, in particular to a resin bonded cubic boron nitride grinding wheel with a U-shaped abrasive layer section and a preparation method thereof. Background technique [0002] It is specially used for crankshaft grinding of various gasoline engines and diesel engines, rough grinding and fine grinding of crankshaft head, and rough grinding and fine grinding of engine valves. The precision and roughness of rough grinding and fine grinding are high. It needs to be processed by cylindrical grinding wheel and end grinding wheel. Chinese Patent No. ZL200510017830.6 discloses a new cubic boron nitride cylindrical grinding wheel and its manufacturing method, which can effectively solve the processing and grinding problems of high-speed steel parts such as air conditioners and refrigerator compressors. The technical solution is: Using the newly emerging cubic boron nitride as the grinding su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D7/00B24D3/32B24D17/00B24D99/00
Inventor 尹育航陶洪亮周华
Owner 广东奔朗新材料股份有限公司
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