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Irreversible temperature indicating paint for brake discs and preparation method thereof

A temperature-indicating coating and brake disc technology, applied in heat-sensitive coatings, coatings, etc., can solve the problems of poor high-temperature stability of coatings, failure to meet temperature measurement requirements, and inability to directly use train brake discs, etc., to achieve good high temperature resistance , Ensure that it will not fall off, and ensure the effect of driving safety

Inactive Publication Date: 2014-07-09
CRRC QISHUYAN INSTITUTE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, although there are currently some irreversible temperature-indicating coatings, they all have their specific uses. Some of these irreversible temperature-indicating coatings cannot meet the temperature measurement requirements of brake discs in the range of 150-700 °C (such as CN101760111 A), and some coatings have poor high-temperature stability. (such as CN101705051 A), it can only guarantee that the coating will not fall off at 250 ℃
Therefore, the existing irreversible temperature-indicating coatings cannot be directly used for the brake discs of trains.

Method used

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  • Irreversible temperature indicating paint for brake discs and preparation method thereof
  • Irreversible temperature indicating paint for brake discs and preparation method thereof
  • Irreversible temperature indicating paint for brake discs and preparation method thereof

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Embodiment Construction

[0045] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of specific embodiments. However, those skilled in the art will appreciate that the detailed description herein with reference to the accompanying drawings is for illustrative purposes only, and the present invention is not limited thereto. The raw materials used in the examples can be purchased from commercial channels, and the binder is high temperature resistant silicone resin or epoxy modified silicone resin, such as French BLUESTAR high temperature resistant silicone resin 6405X or SILRES? 604 or XLK-002 resistant High-temperature silicone resin, or SH-023-4 epoxy-modified silicone resin; phthalocyanine blue pigments are commercially available phthalocyanine blue pigments, such as C.I.Pigment Blue15:6; Cadmium red pigments, such as: Pigment Yellow 35 / P.Y.35 (77117), Pigment Yellow 37 / P.Y.37 (77199), Pigment R...

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Abstract

The invention provides an irreversible temperature indicating paint for brake discs and a preparation method thereof. The irreversible temperature indicating paint contains the following components by mass: 40-45% of a binder; 5-6% of a phthalocyanine blue pigment; 16-22% of cadmium yellow and cadmium red pigments (1:3); 6-10% of a filler; and 20-30% of dimethylbenzene. By providing the irreversible temperature indicating paint with specific components to brake discs, the brake discs can have multiple color change preset temperatures in the range of 150DEG C-700DEG C, thus facilitating visual understanding of a maximum temperature reached in the temperature range in a braking process of the brake discs. Also, the paint has good high temperature resistance, can ensure a coating not to fall off in the 150-700DEG C, thus being conducive to timely finding of overheat hidden troubles during working of the brake discs and guaranteeing driving safety. The irreversible temperature indicating paint provided by the invention is especially suitable for train brake discs.

Description

technical field [0001] The invention relates to a temperature-indicating paint, in particular to an irreversible temperature-indicating paint used for a brake disc of a train and a preparation method thereof. Background technique [0002] On trains and other transportation vehicles, brake discs are usually used to brake by friction. The temperature of the brake discs will rise sharply during use, and overheating often occurs. Overheating will have an adverse effect on the performance of the brake disc and brake pads. For example, overheating may cause thermal cracks in the brake disc and decrease in performance. Overheating may also damage the brake brake that is used as a friction pair with the brake disc. Abnormal wear of the pads, etc., will eventually affect the braking performance and cause accident hazards. In addition, different overheating temperatures have different effects on the brake disc, which requires targeted maintenance. [0003] The overheating problem ca...

Claims

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Application Information

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IPC IPC(8): C09D183/00C09D183/04C09D183/06C09D7/12C09D5/26
Inventor 吴鹏钱坤才
Owner CRRC QISHUYAN INSTITUTE CO LTD
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