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Preparation method of cubic silicon carbide superfine oilstone

A technology of cubic silicon carbide and cubic silicon carbide micropowder, applied in the direction of manufacturing tools, ceramic products, metal processing equipment, etc., can solve the problems of inability to meet ultra-precision machining, insufficient cutting ability, small market demand, etc. Scratch reduction, super-finishing speed effect

Active Publication Date: 2018-03-13
XIAN BOER NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the characteristics of white corundum raw materials, the currently used corundum oil stones have insufficient cutting ability, high loss rate, and poor wire drawing effect, which cannot meet the requirements of ultra-precision machining; diamond oil stones and cubic boron nitride oil stones cannot be used in large quantities due to high raw material prices. use, the market demand is small

Method used

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  • Preparation method of cubic silicon carbide superfine oilstone
  • Preparation method of cubic silicon carbide superfine oilstone
  • Preparation method of cubic silicon carbide superfine oilstone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The preparation method of the present embodiment comprises the following steps:

[0037] Step 1, uniformly mixing cubic silicon carbide micropowder and white corundum to obtain an abrasive; the particle size of both cubic silicon carbide micropowder and white corundum is not greater than 28 μm, and the mass content of cubic silicon carbide micropowder in the abrasive is 90%;

[0038] Step 2, adding boron glass powder, potassium feldspar powder, talcum powder and organic pore-forming agent to the abrasive material in step 1 and mixing uniformly to obtain a mixture; the addition of the boron glass powder is 6% of the abrasive material quality. %, the particle size of potassium feldspar powder is not more than 28 μm, the addition of potassium feldspar powder is 20% of the mass of the abrasive, the addition of talcum powder is 5% of the mass of the abrasive, and the addition of the pore-forming agent is 20% of the mass of the abrasive. 10% of the mass, the pore forming agen...

Embodiment 2

[0050] The preparation method of the present embodiment comprises the following steps:

[0051] Step 1. Uniformly mixing cubic silicon carbide micropowder and white corundum to obtain an abrasive; the particle size of both cubic silicon carbide micropowder and white corundum is not greater than 28 μm, and the mass content of cubic silicon carbide micropowder in the abrasive is 70%;

[0052] Step 2, adding boron glass powder, talcum powder and pore-forming agent to the described abrasive material of step 1 and mixing uniformly to obtain a mixture; the addition of the boron glass powder is 17% of the quality of the abrasive material, and the amount of talcum powder is The addition amount is 5% of the mass of the abrasive, the addition of the pore-forming agent is 10% of the mass of the abrasive, and the pore-forming agent is walnut shell powder with a particle size of 200 mesh;

[0053] Step 3, mix the mixture obtained in step 2 by a mixer for 3h, then pass through a 160 mesh si...

Embodiment 3

[0063] The preparation method of the present embodiment comprises the following steps:

[0064] Step 1, uniformly mixing cubic silicon carbide micropowder and white corundum to obtain an abrasive; the particle size of both cubic silicon carbide micropowder and white corundum is not greater than 28 μm, and the mass content of cubic silicon carbide micropowder in the abrasive is 80%;

[0065] Step 2, adding boron glass powder, potassium feldspar powder, talcum powder and pore-forming agent to the abrasive in step 1 and mixing evenly to obtain a mixture; the addition of the boron glass powder is 9% of the mass of the abrasive , the particle size of the potassium feldspar powder is not more than 28 μm, the addition of the potassium feldspar powder is 9% of the mass of the abrasive, the addition of the talcum powder is 5% of the mass of the abrasive, and the addition of the pore-forming agent is the mass of the abrasive 10%, the pore-forming agent is refined naphthalene;

[0066] ...

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Abstract

The invention discloses a preparation method of a cubic silicon carbide superfine oilstone. The preparation method comprises the following steps: 1, uniformly mix cubic silicon carbide micropowder andwhite corundum to obtain an abrasive; 2, adding boron glass powder, potassium feldspar powder, talcum powder and a pore-forming agent into the abrasive, and uniformly mixing to obtain a mixed material; 3, mixing the mixed material, then sieving to obtain a sieved material; 4, adding an organic adhesive into the sieved material, and uniformly mixing to obtain a wet material; 5, grinding the wet material, then sequentially sieving by using a 40-mesh sieve and a 60-mesh sieve to obtain a sieve underflow, then putting into a mould, and performing compression moulding to obtain a wet oilstone blank; 6, drying and sintering the wet oilstone blank, and sulfurizing to obtain the cubic silicon carbide superfine oilstone. By the preparation method, the superfine oilstone which meets superfine machining requirements can be obtained; in the wire drawing process, a wire is not broken and the wire drawing effect is good; the superfine oilstone is not sticky to iron; after a bearing is closed, the decibel value is below 18dB; the preparation method can be used for high-precision superfine machining of high-precision devices and equipment.

Description

technical field [0001] The invention belongs to the technical field of superfinishing, in particular to a preparation method of cubic silicon carbide superfine whetstone. Background technique [0002] As a finishing technology that can provide high precision, superfinishing technology has been widely used in the fields of superfinishing of bearing grooves, high-precision instruments and equipment processing, etc. Superfinishing is a method of preparing cubic silicon carbide superfine whetstone under the action of lubricating oil with low-pressure, fast and short reciprocating swing on the rotating bearing with fine-grained abrasive whetstone. Low temperature cutting Machining. Using oilstone ultra-fine grinding instead of polishing the inner and outer grooves of the bearing is one of the effective measures to improve bearing precision, reduce noise, improve smoothness, improve surface roughness level, and prolong life. At present, the oil stones used in China are mainly co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/565C04B35/626C04B35/63C04B38/06B24D3/02B24D3/34B24D18/00
CPCB24D3/02B24D3/34B24D3/342B24D18/0009C04B35/565C04B35/62655C04B35/6303C04B38/0605C04B2235/3217C04B2235/3445C04B2235/3472C04B2235/36C04B2235/5436C04B2235/602C04B2235/606C04B2235/656C04B2235/6562C04B2235/6565C04B2235/6567C04B2235/77C04B2235/96
Inventor 王晓刚樊子民徐保海
Owner XIAN BOER NEW MATERIAL CO LTD
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