CN105150399A - Preparation method for compound brake lining for monorail vehicle braking - Google Patents
Preparation method for compound brake lining for monorail vehicle braking Download PDFInfo
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- CN105150399A CN105150399A CN201510498476.7A CN201510498476A CN105150399A CN 105150399 A CN105150399 A CN 105150399A CN 201510498476 A CN201510498476 A CN 201510498476A CN 105150399 A CN105150399 A CN 105150399A
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Abstract
The invention discloses a preparation method for a compound brake lining for monorail vehicle braking. Firstly, raw materials of macromolecule compound friction materials for preparing the compound brake lining are selected according to a certain mass percent; all the raw material components are subjected to rubber pre-smelting, banburying heating for 5-9 min, cleaning, banburying, and banburying adjustment for 3-5 min sequentially in a meshing mixer; after banburying is finished and rubber materials are discharged, the rubber materials are subjected to two-stage crushing treatment, and the macromolecule compound friction materials for the compound brake lining are obtained; the obtained macromolecule compound friction materials and a steel backing are formed at a time through a hot-pressing process, and the compound brake lining is obtained; and the pressed compound brake lining is arranged in a box-type curing furnace to be subjected to program-type heating curing, and the compound lining for monorail vehicle braking is obtained. The preparation method can obviously improve the heat resistance and strength of the brake lining, effectively relieve heat fading of the brake lining caused by high brake pressure and frequent braking in the braking process, and meet the use requirement for straddle type monorail vehicle braking.
Description
Technical field
The present invention relates to urban track traffic Brake Products technical field, particularly relate to a kind of preparation method of single-track vehicle braking Composition brake shoes.
Background technology
At present, urban track traffic, as an important component part of urban public tranlport system, mainly contains the polytypes such as subway, light rail, suburban railway, tramcar and aerotrain, is known as " sustainer of urban transportation ".Along with the quickening of Urbanization Process In China, urban track traffic also enters great development period.Release news according to basic industry department of National Development and Reform Committee, to the year two thousand twenty, the circuit that China builds up operation in 28 cities will reach 177, and total kilometrage reaches 6100 kilometers.Wherein gyrocar due to floor space little, the advantages such as climbing capacity is strong, city obtains planning application at home gradually.
In prior art, there is coefficient of friction instability in the brake pad that gyrocar uses, and heat fading is obvious, and temperature rise change acutely causes the problem such as fire check, stripping, improves the maintenance cost of vehicle.
Summary of the invention
The object of this invention is to provide a kind of preparation method of single-track vehicle braking Composition brake shoes, the method can significantly improve heat resistance, the intensity of brake pad, effective improve brake lining brake pressure in braking procedure large, brake the heat fading frequently caused, and reduce brake disc thermic load, meet the instructions for use of straddle type monorail vehicle braking.
A preparation method for single-track vehicle braking Composition brake shoes, described method comprises:
The each raw material preparing Composition brake shoes macromolecular composite friction material are chosen by certain mass percent; Wherein, described raw material specifically comprise: liquid boron phenol-formaldehyde resin modified, solid boron modification resin, butadiene-styrene rubber, red copper fiber, crystal whisker of hexa potassium titanate, calcium sulfate crystal whiskers, acicular wollastonite, carbon fiber, aramid fiber slurry pool, magnesia, petroleum coke Delanium, hexamethylenetetramine, insoluble sulfur, NOBS, carbon black and zircon flour;
Each raw material component is refined in advance through rubber successively in meshing mixer, banburying heating 5 ~ 9 minutes, cleaning, banburying and banburying regulate process in 3 ~ 5 minutes;
Banburying through two-stage crushing process, obtains described Composition brake shoes macromolecular composite friction material after terminating sizing material discharge;
Obtained macromolecular composite friction material and steel backing are adopted heat pressing process one-shot forming, obtains described Composition brake shoes;
Composition brake shoes through compacting is loaded in box curing oven and carries out program mode elevated cure, and after solidification terminates, when in-furnace temperature drops to below 80 DEG C, come out of the stove and obtain described single-track vehicle braking Composition brake shoes.
As seen from the above technical solution provided by the invention, the method can significantly improve heat resistance, the intensity of brake pad, effective improve brake lining brake pressure in braking procedure large, brake the heat fading frequently caused, and reduce brake disc thermic load, meet the instructions for use of straddle type monorail vehicle braking.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 provides by the embodiment of the present invention preparation method's schematic flow sheet of single-track vehicle braking Composition brake shoes.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail, be illustrated in figure 1 the embodiment of the present invention preparation method's schematic flow sheet of single-track vehicle braking Composition brake shoes is provided, described preparation method comprises:
Step 11: choose each raw material preparing Composition brake shoes macromolecular composite friction material by certain mass percent;
In this step, described raw material specifically comprise: liquid boron phenol-formaldehyde resin modified, solid boron modification resin, butadiene-styrene rubber, red copper fiber, crystal whisker of hexa potassium titanate, calcium sulfate crystal whiskers, acicular wollastonite, carbon fiber, aramid fiber slurry pool, magnesia, petroleum coke Delanium, hexamethylenetetramine, insoluble sulfur, NOBS, carbon black and zircon flour.
Wherein, the solid masses degree of described liquid boron phenol-formaldehyde resin modified is 45 ± 5% (105 DEG C ± 2 DEG C, 2h), and gel time is 70 ~ 120S (200 DEG C), and viscosity is 600 ~ 1000mpa.s; Liquid boron phenol-formaldehyde resin modified can ensure fully to infiltrate with powder, particle and fibrous material, improves inorganic material interfacial property, ensure that the bond strength with matrix material;
Described solid boron modification resin is 200 object toners, effectively can increase the temperature tolerance of friction material, being different from general take resin as the friction material system of matrix, for a change material fragility, and in reisn base material, adds butadiene-styrene rubber increase toughness of material.
Above-mentioned formula for raw stock with liquid and solid boron modification resin, butadiene-styrene rubber for bonding system, with red copper fiber, crystal whisker of hexa potassium titanate, calcium sulfate crystal whiskers, acicular wollastonite, carbon fiber, aramid fiber slurry pool for strengthening component, strengthening component and coordinating collocation based on the multi-functional miscellaneous ingredients of fiber-like.With graphite, molybdenum bisuphide, antimony trisulfide for frictional property regulator or compounding ingredient.Select N-(oxidation diethylidene)-2-[4-morpholinodithio sulfenamide (NOBS), hexamethylenetetramine, insoluble sulfur to be sulfuration Promotion system and resin rubber base mate, there is good processing performance and material property.Wherein, red copper fiber effectively can increase the thermal conductivity of material, reduces frictional interface temperature, stablizes coefficient of friction.Carbon fiber can reduce material abrasion, increases material thermal conductivity.Crystal whisker of hexa potassium titanate, except having the strengthening the property of ceramic fibre, also has heat insulation, heat-resisting and high infrared reflection performance and high temperature sound absorption qualities, obviously can increase the heat resistance of friction material system and effectively reduce friction noise.Calcium sulfate crystal whiskers has reinforcement, toughness reinforcing and improve the effect of material thermal resistance.Whisker based on crystal whisker of hexa potassium titanate and fiber collocation system, control storeroom proportioning, regulate frictional interface temperature, can obtain friction material system that is heat-resisting, stable friction factor.
In specific implementation, each raw-material mass percent scope can be:
The liquid boron phenol-formaldehyde resin modified of 5 ~ 9%, the solid boron modification resin of 5 ~ 9%, the butadiene-styrene rubber of 6 ~ 8%, the red copper fiber of 15 ~ 20%, the crystal whisker of hexa potassium titanate of 5 ~ 9%, the calcium sulfate crystal whiskers of 5 ~ 9%, the acicular wollastonite of 5 ~ 9%, the carbon fiber of 5 ~ 9%, the aramid fiber slurry pool of 5 ~ 9%, the magnesia of 6 ~ 12%, the petroleum coke of 5 ~ 8%, the Delanium of 2 ~ 5%, the hexamethylenetetramine of 0.1 ~ 0.4%, the insoluble sulfur of 0.1 ~ 0.5%, the NOBS of 0.05 ~ 0.1%, the carbon black of 1 ~ 3% and the zircon flour of 1 ~ 1.5%;
The mass percent summation of above-mentioned each raw material is 100%.
Step 12: each raw material component is refined in advance through rubber successively in meshing mixer, banburying heating 5 ~ 9 minutes, cleaning, banburying and banburying regulate process in 3 ~ 5 minutes.
In banburying processing procedure, temperature controls at 80 ~ 120 DEG C, and material pressure controls at 0.25 ~ 0.75Mpa, spinner velocity 30 ~ 40rpm; Banburying regulates automatic control program according to technique initialization temperature range, and self-regulating rotary speed, pressure make sizing material temperature meet technological requirement.
After airtight engagement is mixing, due to material strong shear, stirring and mixing effect at elevated pressures and temperatures, ensure that each component disperses of sizing material is even, organic binder bond is evenly wrapped in inorganic particle surfaces, strong mechanical property.
Step 13: banburying through two-stage crushing process, obtains described Composition brake shoes macromolecular composite friction material after terminating sizing material discharge;
In break process process, after one-level coarse crushing, the dynamics of compound is made to be less than 200mm; After secondary is in small, broken bits, the granularity of compound is made to be less than 2mm.
Step 14: obtained macromolecular composite friction material and steel backing are adopted heat pressing process one-shot forming, obtains described Composition brake shoes;
In this step, pressing conditions can be set as:
Mold temperature 165 ~ 175 DEG C, material pressure at expulsion 20MPa ~ 34MPa, exhaust number of times 1 ~ 3 time;
Material setting pressing pressure is 55MPa ~ 65MPa, and the press time is 20 ~ 30min.
Meanwhile, reinforcement can be welded at steel backing with the faying face of friction material and increase bond strength.
Step 15: the Composition brake shoes through compacting is loaded in box curing oven and carries out program mode elevated cure, and after solidification terminates, when in-furnace temperature drops to below 80 DEG C, come out of the stove and obtain described single-track vehicle braking Composition brake shoes.
In this step, solidification temperature and time see the following form shown in 1:
Table 1 solidification temperature and time
Pass through above-mentioned steps, just can prepare single-track vehicle braking Composition brake shoes, further sampling and testing is carried out to obtained composite friction material and Composition brake shoes: the testing result of composite friction material is Rockwell hardness 70 ~ 85, hot strength 10 ~ 15.92MPa, compressive strength 45 ~ 50.34MPa, modulus of compressibility 450 ~ 620MPa, impact strength 5.2 ~ 6.5kJ/ ㎡, density 2.26g/cm
3.
Prepared Composition brake shoes maximum operation (service) temperature can reach 500 DEG C, and instantaneous temperature can reach 600 DEG C, average friction coefficient scope 0.25 ~ 0.32.
In sum, the preparation method that the embodiment of the present invention provides can significantly improve the heat conductivility of brake lining, heat resistance and intensity, reduce the heat fading of Composition brake shoes, simultaneously in braking procedure, effectively can conduct the frictional heat that brake disc tread and brake lining friction piece produce in braking procedure, reduce the fire damage to brake disc, prevent brake disc fire check, heat cracks, hot soarfing from generation.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (6)
1. a preparation method for single-track vehicle braking Composition brake shoes, is characterized in that, described method comprises:
The each raw material preparing Composition brake shoes macromolecular composite friction material are chosen by certain mass percent; Wherein, described raw material specifically comprise: liquid boron phenol-formaldehyde resin modified, solid boron modification resin, butadiene-styrene rubber, red copper fiber, crystal whisker of hexa potassium titanate, calcium sulfate crystal whiskers, acicular wollastonite, carbon fiber, aramid fiber slurry pool, magnesia, petroleum coke Delanium, hexamethylenetetramine, insoluble sulfur, NOBS, carbon black and zircon flour;
Each raw material component is refined in advance through rubber successively in meshing mixer, banburying heating 5 ~ 9 minutes, cleaning, banburying and banburying regulate process in 3 ~ 5 minutes;
Banburying through two-stage crushing process, obtains described Composition brake shoes macromolecular composite friction material after terminating sizing material discharge;
Obtained macromolecular composite friction material and steel backing are adopted heat pressing process one-shot forming, obtains described Composition brake shoes;
Composition brake shoes through compacting is loaded in box curing oven and carries out program mode elevated cure, and after solidification terminates, when in-furnace temperature drops to below 80 DEG C, come out of the stove and obtain described single-track vehicle braking Composition brake shoes.
2. the preparation method of single-track vehicle braking Composition brake shoes according to claim 1, it is characterized in that, described each raw-material mass percent scope is:
The liquid boron phenol-formaldehyde resin modified of 5 ~ 9%, the solid boron modification resin of 5 ~ 9%, the butadiene-styrene rubber of 6 ~ 8%, the red copper fiber of 15 ~ 20%, the crystal whisker of hexa potassium titanate of 5 ~ 9%, the calcium sulfate crystal whiskers of 5 ~ 9%, the acicular wollastonite of 5 ~ 9%, the carbon fiber of 5 ~ 9%, the aramid fiber slurry pool of 5 ~ 9%, the magnesia of 6 ~ 12%, the petroleum coke of 5 ~ 8%, the Delanium of 2 ~ 5%, the hexamethylenetetramine of 0.1 ~ 0.4%, the insoluble sulfur of 0.1 ~ 0.5%, the NOBS of 0.05 ~ 0.1%, the carbon black of 1 ~ 3% and the zircon flour of 1 ~ 1.5%;
The mass percent summation of above-mentioned each raw material is 100%.
3. the preparation method of single-track vehicle braking Composition brake shoes according to claim 1 or 2, is characterized in that,
The solid masses degree of described liquid boron phenol-formaldehyde resin modified is 45 ± 5%, and gel time is 70 ~ 120S, and viscosity is 600 ~ 1000mpa.s;
Described solid boron modification resin is 200 object toners, and adds butadiene-styrene rubber in reisn base material.
4. the preparation method of single-track vehicle braking Composition brake shoes according to claim 1, is characterized in that, in banburying processing procedure:
Temperature controls at 80 ~ 120 DEG C, and material pressure controls at 0.25 ~ 0.75Mpa, spinner velocity 30 ~ 40rpm.
5. the preparation method of single-track vehicle braking Composition brake shoes according to claim 1, is characterized in that, in break process process:
After one-level coarse crushing, the dynamics of compound is made to be less than 200mm;
After secondary is in small, broken bits, the granularity of compound is made to be less than 2mm.
6. the preparation method of single-track vehicle braking Composition brake shoes according to claim 1, is characterized in that, adopt in the one-time formed process of heat pressing process in macromolecular composite friction material and steel backing, pressing conditions is set as:
Mold temperature 165 ~ 175 DEG C, material pressure at expulsion 20MPa ~ 34MPa, exhaust number of times 1 ~ 3 time;
Material setting pressing pressure is 55MPa ~ 65MPa, and the press time is 20 ~ 30min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510498476.7A CN105150399A (en) | 2015-08-13 | 2015-08-13 | Preparation method for compound brake lining for monorail vehicle braking |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510498476.7A CN105150399A (en) | 2015-08-13 | 2015-08-13 | Preparation method for compound brake lining for monorail vehicle braking |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402219A (en) * | 2016-12-16 | 2017-02-15 | 重庆市宇红轨道车辆配件有限公司 | Wear-resistant brake-shoe friction body for railway truck and brake-shoe |
| CN106704422A (en) * | 2016-12-16 | 2017-05-24 | 重庆市宇红轨道车辆配件有限公司 | Rail wagon high-friction-coefficient brake shoe friction body and brake shoe |
| CN108864512A (en) * | 2018-07-05 | 2018-11-23 | 北京天宜上佳高新材料股份有限公司 | A kind of preparation method of fiber-reinforced resin base frication material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844204A (en) * | 2006-05-12 | 2006-10-11 | 上海培盟材料科技有限公司 | Friction materials for high-speed train braking and method for preparing same |
| CN102588487A (en) * | 2012-02-21 | 2012-07-18 | 喜临门家具股份有限公司 | Variable-diameter columnar type gas pressure spring |
| CN104059260A (en) * | 2014-06-30 | 2014-09-24 | 江苏荣昌机械制造集团有限公司 | High-temperature resistant composite type function brake shoe and production method thereof |
| CN104214258A (en) * | 2014-08-28 | 2014-12-17 | 安徽省中力车辆制动系统制造有限公司 | Environment-friendly ceramic brake pad |
-
2015
- 2015-08-13 CN CN201510498476.7A patent/CN105150399A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844204A (en) * | 2006-05-12 | 2006-10-11 | 上海培盟材料科技有限公司 | Friction materials for high-speed train braking and method for preparing same |
| CN102588487A (en) * | 2012-02-21 | 2012-07-18 | 喜临门家具股份有限公司 | Variable-diameter columnar type gas pressure spring |
| CN104059260A (en) * | 2014-06-30 | 2014-09-24 | 江苏荣昌机械制造集团有限公司 | High-temperature resistant composite type function brake shoe and production method thereof |
| CN104214258A (en) * | 2014-08-28 | 2014-12-17 | 安徽省中力车辆制动系统制造有限公司 | Environment-friendly ceramic brake pad |
Non-Patent Citations (3)
| Title |
|---|
| 冯玉杰等: "《环境功能材料》", 30 April 2010 * |
| 曲在纲等: "《粉末冶金摩擦材料》", 31 January 2005 * |
| 郑昌琼等: "《简明材料词典》", 30 April 2002 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402219A (en) * | 2016-12-16 | 2017-02-15 | 重庆市宇红轨道车辆配件有限公司 | Wear-resistant brake-shoe friction body for railway truck and brake-shoe |
| CN106704422A (en) * | 2016-12-16 | 2017-05-24 | 重庆市宇红轨道车辆配件有限公司 | Rail wagon high-friction-coefficient brake shoe friction body and brake shoe |
| CN108864512A (en) * | 2018-07-05 | 2018-11-23 | 北京天宜上佳高新材料股份有限公司 | A kind of preparation method of fiber-reinforced resin base frication material |
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