Grinding unit for high speed train and preparation method of grinding unit

A technology for high-speed EMUs and abrasives, which can be used in vehicle maintenance, vehicle cleaning, metal processing equipment, etc., and can solve the problems that the application is not fully mature.

Active Publication Date: 2018-11-20
中申(上海)管道工程股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, since the grinding sub-products are only used on specific high-speed train models, they have not been fully popularized

Method used

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  • Grinding unit for high speed train and preparation method of grinding unit
  • Grinding unit for high speed train and preparation method of grinding unit
  • Grinding unit for high speed train and preparation method of grinding unit

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0054] The present invention provides a method for preparing a grinding wheel for high-speed EMUs, which includes the following steps: selected raw materials are made by weighing, mixing, steel back surface treatment, spraying, hot pressing, and heat treatment according to the ratio. The specific steps are as follows :

[0055] 1) Weighing:

[0056] According to the ratio of the raw materials of the grinding parts, use an electronic scale with a suitable range and precision to accurately weigh the required amount of materials; different raw materials are placed in different labeled material boxes and recorded for easy traceability.

[0057] 2) Mixing:

[0058] a) The plow-type mixer is used for the mixing of the present invention, which can solve the mixing uniformity problems of most non-asbestos mineral fibers and organic fibers with fillers, resins, and powder rubbers.

[0059] b) Put the prepared materials into the mixer and close the feed inlet; set the coulter to run for 20-25 mi...

Example Embodiment

[0082] Embodiment 1. An abrasive for high-speed EMUs and its preparation method

[0083] An abrasive for high-speed EMUs. The abrasive is composed of a steel back and a friction material. The friction material includes the following raw materials and weight ratios, as shown in Table 1.

[0084] Table 1. Raw materials and weight ratio of friction materials

[0085] Serial number

[0086] The method for preparing an abrasive for high-speed EMUs includes the following steps: the selected raw materials are made by weighing, mixing, steel back surface treatment, spraying, hot pressing, and heat treatment according to the weight ratio. Proceed as follows:

[0087] 1) Weighing:

[0088] According to the ratio of friction material raw materials, use an electronic scale with appropriate range and accuracy to accurately weigh the required amount of material; different raw materials are placed in different labeled material boxes and recorded for easy traceability.

[0089] 2) Mixing:

[0090] ...

Example Embodiment

[0099] Embodiment 2. A grinding wheel for high-speed EMUs and its preparation method

[0100] An abrasive for high-speed EMUs. The abrasive is composed of a steel back and a friction material. The friction material includes the following raw materials and weight ratios, as shown in Table 2.

[0101] Table 2. The raw material and weight ratio of friction materials

[0102] Serial number

[0103] The method for preparing an abrasive for high-speed EMUs includes the following steps: the selected raw materials are made by weighing, mixing, steel back surface treatment, spraying, hot pressing, and heat treatment according to the weight ratio. Proceed as follows:

[0104] 1) Weighing:

[0105] According to the ratio of friction material raw materials, use an electronic scale with appropriate range and accuracy to accurately weigh the required amount of material; different raw materials are placed in different labeled material boxes and recorded for easy traceability.

[0106] 2) Mixing: ...

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Abstract

The invention provides a grinding unit for a high speed train and a preparation method of the grinding unit. The grinding unit is composed of a friction material and a steel backing, wherein the friction material is composed of phenolic resins having specific physical properties, reinforced fibers, fillers and the like; the components of the friction material need to be pretreated such as mixing and drying; the steel backing needs to be pretreated such as abrasive blasting and resin glue spraying; the pretreated friction material and steel backing are subjected to special hot press molding, heat treatment and other processes, thereby obtaining the grinding unit. According to the grinding unit disclosed by the invention, by improving the thermal stability and enhancing the shock strength, the performance of the grinding unit in aspects such as metal inlaying, crack chipping, wheel shaping, friction noise and the like are improved, damage to the wheel tread is small, the phenomena such as hot cracks and severe wave furrowed abrasion are difficultly caused, and the grinding unit has important application value and wide market prospects in the field of high-speed trains.

Description

technical field [0001] The invention relates to the field of manufacturing abrasives for train sets, in particular to grinders for high-speed train sets and a preparation method thereof. Background technique [0002] With the continuous development of high-speed trains, higher requirements are put forward for train brakes, and more stringent requirements are put forward for the performance of brake friction materials: reliable work, good heat resistance and excellent comprehensive performance. The high-speed train tread cleaner is used to clean the tread, correct the shape of the wheel tread, eliminate the high-frequency vibration between the wheel and rail, suppress the wheel rotation noise, improve the adhesion between the wheel and the track, shorten the braking distance, and ensure the braking safety of the high-speed train. , stable and comfortable; at the same time, the use of grinders on the high-speed EMU bogie can eliminate fatigue cracks on the wheel surface in tim...

Claims

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Application Information

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IPC IPC(8): B60S1/68B22F1/00B22F3/14B22F7/08B22F3/24
CPCB22F3/14B22F3/24B22F7/08B60S1/68B22F2003/248B22F1/103B22F1/10
Inventor 李伟解国志
Owner 中申(上海)管道工程股份有限公司
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