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A technology for honing whetstone and super-hard abrasive, which is applied in abrasives, honing tools, grinding devices, etc., and can solve problems such as short grinding time
Inactive Publication Date: 2015-03-11
YINCHUAN HENGYIDA MACHINERY
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[0006] The purpose of the present invention is to provide a new type of grinding sharpness, high grinding efficiency and grinding quality, short grinding time and long service life in view of the sho
Method used
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Embodiment 1
[0030] This embodiment provides the following metal raw materials: 30wt% copper, 5%wt silver, 4%wt aluminum, 3%wt zinc, 15%wt tin, 15wt% iron, 6wt% nickel, 10%wt cobalt, 5%wt lead. Put copper, silver, aluminum, zinc, tin, cobalt, lead, binder and artificial diamond into the mixer for mixing, after mixing fully, put the mixture into the mold for vacuum pressing, the vacuum degree is 1x10 -2 -1x10 -6 Pa, the pressing temperature is 550°C, the pressing time is 7 minutes, and the pressing pressure is 60MPa; the pressed mixture is sintered at 680°C, and the hybrid superabrasive honing stone is obtained after 8 minutes of heat preservation.
Embodiment 2
[0032] This embodiment provides the following metal raw materials: 20wt% copper, 6%wt silver, 5%wt aluminum, 4%wt zinc, 16%wt tin, 13wt% iron, 7wt% nickel, 8%wt cobalt, 6%wt lead. Put copper, silver, aluminum, zinc, tin, cobalt, lead, binder and artificial diamond into the mixer for mixing, after mixing fully, put the mixture into the mold for vacuum pressing, the vacuum degree is 1x10 -2 -1x10 -6 Pa, the pressing temperature is 500°C, the pressing time is 8 minutes, and the pressing pressure is 65MPa; the pressed mixture is sintered at 700°C, and the hybrid superabrasive honing stone is obtained after holding for 10 minutes.
Embodiment 3
[0034] This embodiment provides the following metal raw materials: 30wt% copper, 4%wt silver, 6%wt aluminum, 3%wt zinc, 13%wt tin, 16wt% iron, 4wt% nickel, 6%wt cobalt, 9%wt lead. Put copper, silver, aluminum, zinc, tin, cobalt, lead, binder and artificial diamond into the mixer for mixing, after mixing fully, put the mixture into the mold for vacuum pressing, the vacuum degree is 1x10 -2 -1x10 -6 Pa, the pressing temperature is 450°C, the pressing time is 6 minutes, and the pressing pressure is 75MPa; the pressed mixture is sintered at a sintering temperature of 750°C, and the hybrid superabrasive honing stone is obtained after holding for 8 minutes.
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Abstract
The invention discloses a mixed ultra-hard abrasive honing stone. The mixed ultra-hard abrasive honing stone is characterized by comprising the following components in percentage by weight: 20-40 percent of copper, 2-6 percent of silver, 1-10 percent of aluminum, 2-6 percent of zinc, 2-20 percent of tin, 10-20 percent of iron, 5-10 percent of nickel, 5-30 percent of cobalt, 1-9 percent of lead, 5-10 percent of a bonding agent and the balance of an ultra-hard material, wherein the volume ratio is 60-100 percent; the metal purity of the copper, the silver, the aluminum, the zinc, the tin, the iron, the nickel, the cobalt and the lead is over 99 percent; the granularity of the ultra-hard material is 200-1,000 meshes; the honing stone is prepared by performing mixing, cold press molding and vacuum hot press process on the raw materials according to the mixture ratio. The mixed ultra-hard abrasive honing stone disclosed by the invention has the advantages of sharp grinding, high grinding efficiency, large grinding weight, short grinding time, long service life, superior self-sharpening property, low process cost, easiness and convenience in preparation, and the like.
Description
technical field [0001] The invention relates to a mixed superabrasive honing oilstone and a preparation method thereof. Background technique [0002] Honing is a method of finishing the surface of the workpiece at a low cutting speed, and is a special form of grinding. As a finishing method to improve the machining accuracy of the inner hole surface and reduce the surface roughness, honing can not only remove a large machining allowance, but also improve dimensional accuracy, geometric shape accuracy and reduce surface roughness, so it is widely used It is used in the finishing process of hole parts in industries such as automobile, aviation, petroleum machinery, engineering machinery and military industry. [0003] As the most commonly used honing process, honing stone is widely used in grinding processing. As one of the main factors affecting the honing inner hole surface quality and honing efficiency, the honing oil stone has the most direct impact on the grinding perfo...
Claims
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