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Ceramic matrix tread sweeper grinder and production method thereof

A cleaner and ceramic-based technology, which is applied in vehicle cleaning, vehicle maintenance, transportation and packaging, etc., can solve the problems of affecting safe use, poor thermal stability, and easy to generate slag, so as to prevent slag from falling, improve toughness, Good toughness and thermal stability

Inactive Publication Date: 2019-02-15
马鞍山市雷狮轨道交通装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the poor toughness and poor thermal stability of existing abrasives, which are prone to slag during use and affect safe use, the present invention provides a ceramic-based tread cleaner abrasive and a manufacturing method thereof, which has good toughness , has good thermal stability, can effectively prolong the service life

Method used

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  • Ceramic matrix tread sweeper grinder and production method thereof
  • Ceramic matrix tread sweeper grinder and production method thereof
  • Ceramic matrix tread sweeper grinder and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A grinding wheel for a ceramic-based tread cleaner of the present embodiment and a manufacturing method thereof, specifically include the following steps:

[0032] (1) According to the following ratio for ingredients

[0033] Silicon carbide whiskers 8%, ferrosilicon nitride 10%, quartz powder 18%, ρ-Al 2 o 3 10%, nanometer titanium oxide 8%, calcium yttrium composite zirconia powder 20%, silane coupling agent modified phenolic resin 15%, tetrahydrofuran 6%, water 5%, of which W (silicon carbide whiskers) + W (quartz powder) + W (titanium oxide) + W (zirconia powder) + W (ferrosilicon nitride) + W (alumina powder) and the ratio of the amount of W (modified phenolic resin) is 4.9:1;

[0034] (2) Put the above-mentioned ceramic raw materials silicon carbide whisker, ferrosilicon nitride, quartz powder, alumina powder, nanometer titanium oxide, calcium yttrium composite zirconia powder into the mixer, and add modified Phenolic resin premix;

[0035] (3) After premixing...

Embodiment 2

[0044] A grinding wheel for a ceramic-based tread cleaner of the present embodiment and a manufacturing method thereof, specifically include the following steps:

[0045] (1) According to the following ratio for ingredients

[0046] Silicon carbide whiskers 5%, ferrosilicon nitride 15%, quartz powder 12%, ρ-Al 2 o 3 10%, nanometer titanium oxide 7.9%, calcium yttrium composite zirconia powder 20%, phenolic resin modified by silane coupling agent 20%, tetrahydrofuran 5%, water 5%, copper powder 0.1%;

[0047] (2) Put the above-mentioned ceramic raw materials silicon carbide whisker, ferrosilicon nitride, quartz powder, alumina powder, nanometer titanium oxide, calcium yttrium composite zirconia powder into the mixer, and add modified Phenolic resin premix;

[0048] (3) After premixing is completed, add tetrahydrofuran and water to continue mixing to form particles with a diameter of about 3mm;

[0049] (4) Put the granulated mixture into a drying oven to dry for 2 hours, an...

Embodiment 3

[0055] A grinding wheel for a ceramic-based tread cleaner of the present embodiment and a manufacturing method thereof, specifically include the following steps:

[0056] (1) According to the following ratio for ingredients

[0057] Silicon carbide whiskers 10%, ferrosilicon nitride 8%, quartz powder 15%, ρ-Al 2 o 3 8%, nanometer titanium oxide 5%, calcium yttrium composite zirconia powder 24.8%, silane coupling agent modified phenolic resin 16%, tetrahydrofuran 6%, water 7%, copper powder 0.2%, wherein W (silicon carbide whisker ) + W (quartz powder) + W (titanium oxide) + W (zirconia powder) + W (ferrosilicon nitride) + W (alumina powder) and the ratio of the total amount of W (modified phenolic resin) is 4.4:1;

[0058] (2) Put the above-mentioned ceramic raw materials silicon carbide whisker, ferrosilicon nitride, quartz powder, alumina powder, nanometer titanium oxide, calcium yttrium composite zirconia powder into the mixer, and add modified Phenolic resin premix;

...

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Abstract

The invention discloses a ceramic matrix tread cleaner grinder and a production method thereof, and belongs to the field of urban rail transit equipment. The ceramic matrix tread cleaner grinder is prepared from the following ceramic raw materials: a silicon carbide whisker, ferrosilicon nitride, quartz powder, alumina powder, titanium oxide and zirconia powder. The production method comprises thefollowing steps: pouring the raw materials into a mixer, adding modified phenolic resin for premixing, then adding tetrahydrofuran and water for continuous mixing and producing particles with the diameter of about 2 to 3 mm, drying, carrying out vacuum hot-pressing molding and curing. According to the production method disclosed by the invention, hot-pressing molding is carried out on the grinderby improving a formula and a process and using modified phenolic resin as a binder; with reasonable hot pressing pressure and heat treatment time, the toughness and thermal stability of the grinder can be improved; in addition, slag is not easy to fall off and the service life can be effectively prolonged; besides, certain social benefits for environmental protection also can be played.

Description

technical field [0001] The invention belongs to the field of rail transit equipment, and more specifically relates to a grinding wheel for a ceramic-based tread cleaner and a manufacturing method thereof. Background technique [0002] The tread cleaner plays the role of cleaning the wheel and increasing the wheel-rail adhesion coefficient to ensure the safety of the service brake. The part of the tread cleaner that directly acts on the wheel is called a grinder. The grinder is a friction part in the tread cleaner that has the functions of cleaning, thickening, and rounding. In view of the above functions, the grinder is formed by pressing and solidified. Due to the thermal decomposition characteristics of phenolic resin, the grinder During the long-term grinding process, the grinder plays an extremely important role in driving safety. In the production process of the grinding wheel, phenolic resin is generally used as a binder for hot pressing molding. During the friction p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/32B60S1/68
CPCB60S1/68C04B26/32C04B2111/00362C04B2201/20C04B2201/50C04B2201/52C04B14/06C04B14/303C04B14/305C04B20/008C04B14/306C04B14/383C04B14/325C04B24/023
Inventor 贺子铭彭程林
Owner 马鞍山市雷狮轨道交通装备有限公司
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