Inorganic composite abrasive resin grinding wheel and preparation method thereof

Abstract

The invention discloses an inorganic composite abrasive resin grinding wheel and a preparation method thereof. The inorganic composite abrasive resin grinding wheel is composed of the following raw materials of, by weight, 9-11 parts of resin powder, 15-17 parts of resin liquid, 50-60 parts of brown fused alumina, 45-55 parts of white fused alumina, 15-25 parts of potassium cryolite, 20-25 parts of iridium-plated sand, 5-8 parts of titanium dioxide, 5-7 parts of phthalocyanine green, 10-15 parts of active auxiliaries and 2-3 parts of curing agents. The manufacturing method is reasonable in step design, all the steps are closely connected, the manufactured grinding wheel is good in friction resistance and high temperature resistance, the production step design is reasonable, and the production efficiency is high.

Description

Technical Field

[0001] The invention belongs to the technical field of resin grinding wheel preparation, and in particular relates to an inorganic composite abrasive resin grinding wheel and a preparation method thereof. Background Art

[0002] At present, titanium alloy materials have been used in 3C industries such as mobile phones. According to the surface dimensional accuracy and surface roughness of the finished parts, grinding is required to ensure the quality of the surface of the parts. Grinding is usually performed with a grinding wheel. A grinding wheel is a bonded abrasive tool, which is a bonded mold that uses a binder to bond ordinary abrasives into a certain shape and has a certain strength. The grinding wheel is mainly composed of abrasives, binders and pores. According to the different binders, ceramic grinding wheels, resin grinding wheels and rubber grinding wheels are common. Among them, the resin grinding wheel is a grinding wheel made of resin, which has high strength, certain elasticity, good self-sharpening, and is widely used in the grinding of hard and brittle materials. During the use of the existing resin grinding wheel, when it is in high-speed operation, the temperature at the friction position between the grinding wheel and the workpiece is relatively high, and the resin grinding wheel generally has the disadvantage of low heat resistance, which affects the quality of the workpiece. Summary of the invention

[0003] In order to improve the heat resistance of the resin grinding wheel, the present invention provides an inorganic composite abrasive resin grinding wheel and a preparation method thereof.

[0004] The object of the present invention is achieved in this way: an inorganic composite abrasive resin grinding wheel is composed of the following raw materials in parts by weight: 9-11 parts of resin powder, 15-17 parts of resin liquid, 50-60 parts of brown corundum, 45-55 parts of white corundum, 15-25 parts of potassium cryolite, 20-25 parts of iridium-plated sand, 5-8 parts of titanium dioxide, 5-7 parts of phthalocyanine green, 10-15 parts of active additives, and 2-3 parts of curing agent.

[0005] The active auxiliary agent is oxidized paraffin; the curing agent is acrylate or propiolactone.

[0006] Steel wire mesh and glass fiber cloth also need to be added during the production of grinding wheels.

[0007] The invention is composed of the following raw materials in parts by weight: 10 parts of resin powder, 16 parts of resin liquid, 55 parts of brown corundum, 50 parts of white corundum, 20 parts of potassium cryolite, 22 parts of iridium-plated sand, 7 parts of titanium dioxide, 6 parts of phthalocyanine green, 12 parts of active additive and 2.5 parts of curing agent.

[0008] A method for preparing an inorganic composite abrasive resin grinding wheel comprises the following steps: Step 1: Weigh the raw materials, and weigh 9-11 parts of resin powder, 15-17 parts of resin liquid, 50-60 parts of brown corundum, 45-55 parts of white corundum, 15-25 parts of potassium cryolite, 20-25 parts of iridium-plated sand, 5-8 parts of titanium dioxide, 5-7 parts of phthalocyanine green, 10-15 parts of active additives, and 2-3 parts of curing agent according to the weight ratio; Step 2: Mix the raw materials weighed in step 1, first mix the resin liquid and resin powder in a mixing pot, and then pour brown corundum, white corundum, potassium cryolite, iridium-plated sand, titanium dioxide, phthalocyanine green, active additives, and curing agent into the mixing pot for mixing and stirring. After fully stirring, turn off the mixer and let it stand for 12 hours; Step 3: After standing, put the mixture in step 2 into the corresponding mold, and add wire mesh into the mold. The wire mesh should be completely buried in the mixture. Then scrape the mold flat, stand in the mold for 45 minutes, and then put the mold cover into the mold, press it once, and then get the grinding wheel blank. Then remove the mold cover, put in the hole ring, spread glass fiber cloth on the surface of the grinding wheel blank, and put the brand trademark on the glass fiber cloth; Step 4: Put the grinding wheel blank in step 3 into the oven, and buckle the upper mold cover, then control the temperature of the oven at 200±5℃ for high temperature hardening to obtain the finished resin grinding wheel; Step 5: Remove the grinding wheel from the mold in step 4.

[0009] The beneficial effect of the present invention is that the grinding wheel produced by the present invention can achieve the purpose of resisting high temperature friction during use due to the addition of brown corundum, white corundum and potassium cryolite, and the reasonable ratio of these three main abrasives. Most resin grinding wheels generally control the drying temperature at about 100 degrees Celsius during the drying step in the production process, while the present invention deliberately controls the oven temperature at 200±5°C during production, so that the resin liquid, resin powder and other raw materials can be more densely combined. Compared with other grinding wheels produced by controlling the drying temperature at about 100 degrees Celsius, the grinding wheel produced by the present invention has better density and relatively improves the performance of high temperature resistance and impact resistance. Implementation

[0010] The embodiments of the present invention are further described below in conjunction with the embodiments. Example

[0011] An inorganic composite abrasive resin grinding wheel is composed of the following raw materials in parts by weight: 9 parts of resin powder, 15 parts of resin liquid, 50 parts of brown corundum, 45 parts of white corundum, 15 parts of potassium cryolite, 20 parts of iridium-plated sand, 5 parts of titanium dioxide, 5 parts of phthalocyanine green, 10 parts of active additives, and 2 parts of curing agent.

[0012] The active auxiliary agent is oxidized paraffin; and the curing agent is propiolactone.

[0013] Steel wire mesh and glass fiber cloth also need to be added during the production of grinding wheels.

[0014] A method for preparing an inorganic composite abrasive resin grinding wheel comprises the following steps: Step 1: Weigh the raw materials, and weigh 9 parts of resin powder, 15 parts of resin liquid, 50 parts of brown corundum, 45 parts of white corundum, 15 parts of potassium cryolite, 20 parts of iridium-plated sand, 5 parts of titanium dioxide, 5 parts of phthalocyanine green, 10 parts of active additives, and 2 parts of curing agent according to the weight ratio; Step 2: Mix the raw materials weighed in step 1, first mix the resin liquid and resin powder in a mixing pot, and then pour brown corundum, white corundum, potassium cryolite, iridium-plated sand, titanium dioxide, phthalocyanine green, active additives, and curing agent into the mixing pot for mixing and stirring. After fully stirring, turn off the mixer and let it stand for 12 hours; Step 3: After standing, put the mixture in step 2 into the corresponding mold, and add wire mesh into the mold. The wire mesh should be completely buried in the mixture. Then scrape the mold flat, stand in the mold for 45 minutes, and then put the mold cover into the mold, press it once, and then get the grinding wheel blank. Then remove the mold cover, put in the hole ring, spread glass fiber cloth on the surface of the grinding wheel blank, and put the brand trademark on the glass fiber cloth; Step 4: Put the grinding wheel blank in step 3 into the oven, and buckle the upper mold cover, then control the temperature of the oven at 200±5℃ for high temperature hardening to obtain the finished resin grinding wheel; Step 5: Remove the grinding wheel from the mold in step 4. Example

[0015] An inorganic composite abrasive resin grinding wheel is composed of the following raw materials in parts by weight: 10 parts of resin powder, 16 parts of resin liquid, 55 parts of brown corundum, 50 parts of white corundum, 20 parts of potassium cryolite, 23 parts of iridium-plated sand, 7 parts of titanium dioxide, 6 parts of phthalocyanine green, 12 parts of active additives, and 2.5 parts of curing agent.

[0016] The active auxiliary agent is oxidized paraffin; and the curing agent is propiolactone.

[0017] Steel wire mesh and glass fiber cloth also need to be added during the production of grinding wheels.

[0018] A method for preparing an inorganic composite abrasive resin grinding wheel is the same as that of Example 1. Example

[0019] An inorganic composite abrasive resin grinding wheel is composed of the following raw materials in parts by weight: 11 parts of resin powder, 17 parts of resin liquid, 60 parts of brown corundum, 55 parts of white corundum, 25 parts of potassium cryolite, 25 parts of iridium-plated sand, 8 parts of titanium dioxide, 7 parts of phthalocyanine green, 15 parts of active additives, and 3 parts of curing agent.

[0020] The active auxiliary agent is oxidized paraffin; and the curing agent is acrylate.

[0021] Steel wire mesh and glass fiber cloth also need to be added during the production of grinding wheels.

[0022] A method for preparing an inorganic composite abrasive resin grinding wheel is the same as that of Example 1.

[0023] In general, the grinding wheel produced by the present invention has good friction resistance and high temperature resistance, and the production steps are reasonably designed and the production efficiency is high.

Claims

1. An inorganic composite abrasive resin grinding wheel, characterized in that: It is composed of the following raw materials in parts by weight: 9-11 parts of resin powder, 15-17 parts of resin liquid, 50-60 parts of brown corundum, 45-55 parts of white corundum, 15-25 parts of potassium cryolite, 20-25 parts of iridium-plated sand, 5-8 parts of titanium dioxide, 5-7 parts of phthalocyanine green, 10-15 parts of active additives, and 2-3 parts of curing agent.

2. The inorganic composite abrasive resin grinding wheel according to claim 1, characterized in that: The active auxiliary agent is oxidized paraffin; the curing agent is acrylate or propiolactone.

3. The inorganic composite abrasive resin grinding wheel according to claim 1, characterized in that: Steel wire mesh and glass fiber cloth also need to be added during the production of grinding wheels.

4. The inorganic composite abrasive resin grinding wheel according to claim 1, characterized in that: The invention is composed of the following raw materials in parts by weight: 10 parts of resin powder, 16 parts of resin liquid, 55 parts of brown corundum, 50 parts of white corundum, 20 parts of potassium cryolite, 22 parts of iridium-plated sand, 7 parts of titanium dioxide, 6 parts of phthalocyanine green, 12 parts of active additive and 2.5 parts of curing agent.

5. A method for preparing an inorganic composite abrasive resin grinding wheel, characterized in that: The steps include: Step 1: Weigh the raw materials, and weigh 9-11 parts of resin powder, 15-17 parts of resin liquid, 50-60 parts of brown corundum, 45-55 parts of white corundum, 15-25 parts of potassium cryolite, 20-25 parts of iridium-plated sand, 5-8 parts of titanium dioxide, 5-7 parts of phthalocyanine green, 10-15 parts of active additives, and 2-3 parts of curing agent according to the weight ratio; Step 2: Mix the raw materials weighed in step 1, first mix the resin liquid and resin powder in a mixing pot, and then pour brown corundum, white corundum, potassium cryolite, iridium-plated sand, titanium dioxide, phthalocyanine green, active additives, and curing agent into the mixing pot for mixing and stirring. After fully stirring, turn off the mixer and let it stand for 12 hours; Step 3: After standing, put the mixture in step 2 into the corresponding mold, and add wire mesh into the mold. The wire mesh should be completely buried in the mixture. Then scrape the mold flat, stand in the mold for 45 minutes, and then put the mold cover into the mold, press it once, and then get the grinding wheel blank. Then remove the mold cover, put in the hole ring, spread glass fiber cloth on the surface of the grinding wheel blank, and put the brand trademark on the glass fiber cloth; Step 4: Put the grinding wheel blank in step 3 into the oven, and buckle the upper mold cover, then control the temperature of the oven at 200±5℃ for high temperature hardening to obtain the finished resin grinding wheel; Step 5: Remove the grinding wheel from the mold in step 4.