CN111842847A - Brake disc and preparation process - Google Patents
Brake disc and preparation process Download PDFInfo
- Publication number
- CN111842847A CN111842847A CN202010701763.4A CN202010701763A CN111842847A CN 111842847 A CN111842847 A CN 111842847A CN 202010701763 A CN202010701763 A CN 202010701763A CN 111842847 A CN111842847 A CN 111842847A
- Authority
- CN
- China
- Prior art keywords
- brake disc
- silicon carbide
- carbide ceramic
- disk body
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0026—Non-ferro
- F16D2200/003—Light metals, e.g. aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0039—Ceramics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a brake disc and a preparation process thereof, wherein the brake disc comprises a disc body and a silicon carbide ceramic framework embedded in the disc body, the disc body is made of aluminum alloy, and the silicon carbide ceramic framework is flush with or protrudes out of a brake surface of the disc body. The invention greatly reduces the weight without influencing the braking effect, and is safer and more reliable.
Description
Technical Field
The invention relates to a brake disc and a preparation process thereof.
Background
The traditional brake disc for the oil drilling platform is mainly a steel brake disc, the brake disc is heavy in whole, difficult to replace is caused, sparks are easy to generate during friction, and the natural gas drilling platform is easy to catch fire.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a brake disc which greatly reduces the weight and is safer and more reliable on the premise of not influencing the braking effect.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a brake disc, it includes the disk body and inlays silicon carbide ceramic skeleton in the disk body, the material of disk body is the aluminum alloy, silicon carbide ceramic skeleton flushes or outstanding brake lining in the disk body mutually with the brake lining of disk body.
The invention also provides a preparation process of the brake disc, which comprises the following process steps:
step S1: putting the silicon carbide ceramic framework into a mould;
step S2: melting an aluminum alloy ingot into casting liquid, and casting the casting liquid into a mold at low pressure to obtain a disk body; wherein the content of the first and second substances,
the silicon carbide ceramic framework is embedded in the disc body, and the silicon carbide ceramic framework is flush with or protrudes out of the brake surface of the disc body.
Further, the aluminum alloy ingot is ZL111 aluminum alloy.
Further, in step S2, the low-pressure casting adopts a multi-stage pressure-boosting casting mode, the casting temperature is 710-730 ℃, and the stages are sequentially:
first stage, pressure: 0.03Mpa, time: 20 s;
second stage, pressure: 0.04MPa, time: 20 s;
third stage, pressure: 0.05Mpa, time: 550 s.
Further, the process steps also include:
step S3: and cleaning, polishing and sprue removing treatment are carried out on the disk body inlaid with the silicon carbide ceramic framework.
Further, the process steps also include:
step S4: and (4) sequentially carrying out solid melting treatment, soaking treatment and aging treatment on the disk body inlaid with the silicon carbide ceramic framework to obtain a finished product.
Further, in step S4, the solid melting treatment is performed in a solid melting furnace, the solid melting is performed for 4-6 hours at 500 ℃, then the temperature is raised to 520 ℃, and the temperature is maintained for 4-6 hours;
In the soaking treatment process, the water temperature is 60-100 ℃, and the soaking time is 10 min;
the aging treatment is carried out in an aging furnace, the aging temperature is 170 ℃, and the aging time is 6-8 h.
Further, the friction coefficient of the finished product was 0.36.
Further, in step S1, the method of placing the silicon carbide ceramic skeleton into a mold includes:
a plurality of fan-shaped silicon carbide ceramic frameworks are placed into two layers in the mold, and each layer is placed along the circumferential direction of the mold.
Further, a plurality of silicon carbide ceramic skeletons form a skeleton body having a central hole;
in step S2, the casting liquid is cast into the mold along the center hole.
After the technical scheme is adopted, the brake disc can replace the original steel brake disc, the disc body of the brake disc is made of aluminum alloy materials, the weight of the whole brake disc is greatly reduced, 2/3 is reduced compared with the traditional steel brake disc, the brake disc is easy to install and replace, sparks cannot be generated during friction, the safety of a drilling platform is improved, and the personal safety of workers is guaranteed; according to the invention, the disc body is prepared by adopting a low-pressure pouring mode, so that the silicon carbide ceramic framework is tightly embedded in the disc body and fully fused with the disc body, and the whole brake disc is stable in structure and good in mechanical property.
Detailed Description
In order that the present invention may be more clearly understood, the following detailed description of the present invention is given with reference to specific examples.
Example one
The utility model provides a brake disc, it includes the disk body and inlays silicon carbide ceramic skeleton in the disk body, the material of disk body is the aluminum alloy, silicon carbide ceramic skeleton flushes or outstanding brake lining in the disk body mutually with the brake lining of disk body.
Example two
A preparation process of a brake disc comprises the following process steps:
step S1: putting the silicon carbide ceramic framework into a mould;
step S2: melting an aluminum alloy ingot into casting liquid, and casting the casting liquid into a mold at low pressure to obtain a disk body; wherein the content of the first and second substances,
the silicon carbide ceramic framework is embedded in the disc body, and the silicon carbide ceramic framework is flush with or protrudes out of the brake surface of the disc body.
In this embodiment, the aluminum alloy ingot is ZL111 aluminum alloy.
In this embodiment, in step S2, the low-pressure casting is performed by multi-stage pressure-increasing casting, where the casting temperature is 710 ℃, and the stages are sequentially:
first stage, pressure: 0.03Mpa, time: 20 s;
second stage, pressure: 0.04MPa, time: 20 s;
Third stage, pressure: 0.05Mpa, time: 550 s.
In this embodiment, the process further includes:
step S3: and cleaning, polishing and sprue removing treatment are carried out on the disk body inlaid with the silicon carbide ceramic framework.
In this embodiment, the process further includes:
step S4: and (4) sequentially carrying out solid melting treatment, soaking treatment and aging treatment on the disk body inlaid with the silicon carbide ceramic framework to obtain a finished product.
Specifically, in step S4, the solid melting treatment is performed in a solid melting furnace, the solid melting is performed for 4 hours at 500 ℃, then the temperature is raised to 520 ℃, and the temperature is maintained for 4 hours;
in the soaking treatment process, the water temperature is 60 ℃, and the soaking time is 10 min;
the aging treatment is carried out in an aging furnace, the aging temperature is 170 ℃, and the aging time is 6 h.
In this example, the coefficient of friction of the finished product was 0.36.
In this embodiment, the step S1, the method of placing the silicon carbide ceramic skeleton into the mold includes:
a plurality of fan-shaped silicon carbide ceramic frameworks are placed into two layers in the mold, and each layer is placed along the circumferential direction of the mold.
In the present embodiment, a plurality of silicon carbide ceramic skeletons form a skeleton body having a central hole;
in step S2, the casting liquid is cast into the mold along the center hole.
EXAMPLE III
A preparation process of a brake disc comprises the following process steps:
step S1: putting the silicon carbide ceramic framework into a mould;
step S2: melting an aluminum alloy ingot into casting liquid, and casting the casting liquid into a mold at low pressure to obtain a disk body; wherein the content of the first and second substances,
the silicon carbide ceramic framework is embedded in the disc body, and the silicon carbide ceramic framework is flush with or protrudes out of the brake surface of the disc body.
In this embodiment, the aluminum alloy ingot is ZL111 aluminum alloy.
In this embodiment, in step S2, the low-pressure casting is performed by multi-stage pressure-increasing casting, where the casting temperature is 720 ℃, and the stages are sequentially:
first stage, pressure: 0.03Mpa, time: 20 s;
second stage, pressure: 0.04MPa, time: 20 s;
third stage, pressure: 0.05Mpa, time: 550 s.
In this embodiment, the process further includes:
step S3: and cleaning, polishing and sprue removing treatment are carried out on the disk body inlaid with the silicon carbide ceramic framework.
In this embodiment, the process further includes:
step S4: and (4) sequentially carrying out solid melting treatment, soaking treatment and aging treatment on the disk body inlaid with the silicon carbide ceramic framework to obtain a finished product.
Specifically, in step S4, the solid melting treatment is performed in a solid melting furnace, the solid melting is performed for 5h under the condition of 500 ℃,
then heating to 520 ℃, and preserving heat for 5 hours;
in the soaking treatment process, the water temperature is 80 ℃, and the soaking time is 10 min;
the aging treatment is carried out in an aging furnace, the aging temperature is 170 ℃, and the aging time is 7 h.
In this example, the coefficient of friction of the finished product was 0.36.
In this embodiment, the step S1, the method of placing the silicon carbide ceramic skeleton into the mold includes:
a plurality of fan-shaped silicon carbide ceramic frameworks are placed into two layers in the mold, and each layer is placed along the circumferential direction of the mold.
In the present embodiment, a plurality of silicon carbide ceramic skeletons form a skeleton body having a central hole;
in step S2, the casting liquid is cast into the mold along the center hole.
Example four
A preparation process of a brake disc comprises the following process steps:
step S1: putting the silicon carbide ceramic framework into a mould;
step S2: melting an aluminum alloy ingot into casting liquid, and casting the casting liquid into a mold at low pressure to obtain a disk body; wherein the content of the first and second substances,
the silicon carbide ceramic framework is embedded in the disc body, and the silicon carbide ceramic framework is flush with or protrudes out of the brake surface of the disc body.
In this embodiment, the aluminum alloy ingot is ZL111 aluminum alloy.
In this embodiment, in step S2, the low-pressure casting is performed by multi-stage pressure-increasing casting, where the casting temperature is 730 ℃, and the stages are sequentially:
first stage, pressure: 0.03Mpa, time: 20 s;
second stage, pressure: 0.04MPa, time: 20 s;
third stage, pressure: 0.05Mpa, time: 550 s.
In this embodiment, the process further includes:
step S3: and cleaning, polishing and sprue removing treatment are carried out on the disk body inlaid with the silicon carbide ceramic framework.
In this embodiment, the process further includes:
step S4: and (4) sequentially carrying out solid melting treatment, soaking treatment and aging treatment on the disk body inlaid with the silicon carbide ceramic framework to obtain a finished product.
In this embodiment, in step S4, the solid solution treatment is performed in a solid solution furnace, and the solid solution is first solidified at 500 deg.C
Melting for 6h, then heating to 520 ℃, and preserving heat for 6 h;
in the soaking treatment process, the water temperature is 100 ℃, and the soaking time is 10 min;
the aging treatment is carried out in an aging furnace, the aging temperature is 170 ℃, and the aging time is 8 h.
In this example, the coefficient of friction of the finished product was 0.36.
In this embodiment, the step S1, the method of placing the silicon carbide ceramic skeleton into the mold includes:
A plurality of fan-shaped silicon carbide ceramic frameworks are placed into two layers in the mold, and each layer is placed along the circumferential direction of the mold.
In the present embodiment, a plurality of silicon carbide ceramic skeletons form a skeleton body having a central hole;
in step S2, the casting liquid is cast into the mold along the center hole.
The working principle of the invention is as follows:
the brake disc can replace the original steel brake disc, the disc body of the brake disc is made of aluminum alloy, so that the weight of the whole brake disc is greatly reduced, 2/3 is reduced compared with the weight of the traditional steel brake disc, the brake disc is easy to install and replace, sparks cannot occur during friction, the safety of a drilling platform is improved, and the personal safety of workers is guaranteed; according to the invention, the disc body is prepared by adopting a low-pressure pouring mode, so that the silicon carbide ceramic framework is tightly embedded in the disc body and fully fused with the disc body, and the whole brake disc is stable in structure and good in mechanical property.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A brake disc is characterized in that a brake disc body,
it includes the disk body and inlays the carborundum ceramic skeleton in the disk body, the material of disk body is the aluminum alloy, carborundum ceramic skeleton flushes or outstanding brake lining in the disk body mutually with the brake lining of disk body.
2. A preparation process of a brake disc is characterized in that,
the process steps comprise:
step S1: putting the silicon carbide ceramic framework into a mould;
step S2: melting an aluminum alloy ingot into casting liquid, and casting the casting liquid into a mold at low pressure to obtain a disk body; wherein the content of the first and second substances,
the silicon carbide ceramic framework is embedded in the disc body, and the silicon carbide ceramic framework is flush with or protrudes out of the brake surface of the disc body.
3. Process for the preparation of a brake disc according to claim 2,
The aluminum alloy ingot is ZL111 aluminum alloy.
4. Process for the preparation of a brake disc according to claim 2,
in the step S2, the low-pressure pouring adopts a multi-section boosting pouring mode, the pouring temperature is 710-730 ℃, and the steps are as follows in sequence:
first stage, pressure: 0.03Mpa, time: 20 s;
second stage, pressure: 0.04MPa, time: 20 s;
third stage, pressure: 0.05Mpa, time: 550 s.
5. Process for the preparation of a brake disc according to claim 2,
the process steps further comprise:
step S3: and cleaning, polishing and sprue removing treatment are carried out on the disk body inlaid with the silicon carbide ceramic framework.
6. Process for the preparation of a brake disc according to claim 5,
the process steps further comprise:
step S4: and (4) sequentially carrying out solid melting treatment, soaking treatment and aging treatment on the disk body inlaid with the silicon carbide ceramic framework to obtain a finished product.
7. Process for the preparation of a brake disc according to claim 6,
in step S4, the solid melting treatment is performed in a solid melting furnace, the solid melting is performed for 4-6 h under the condition of 500 ℃, and then the temperature is raised
Keeping the temperature for 4-6 h at 520 ℃;
in the soaking treatment process, the water temperature is 60-100 ℃, and the soaking time is 10 min;
The aging treatment is carried out in an aging furnace, the aging temperature is 170 ℃, and the aging time is 6-8 h.
8. Process for the preparation of a brake disc according to claim 6,
the coefficient of friction of the finished product was 0.36.
9. Brake disc according to claim 2,
in step S1, the method of placing the silicon carbide ceramic skeleton into a mold includes:
a plurality of fan-shaped silicon carbide ceramic frameworks are placed into two layers in the mold, and each layer is placed along the circumferential direction of the mold.
10. Brake disc according to claim 9,
a plurality of silicon carbide ceramic armatures form an armature having a central bore;
in step S2, the casting liquid is cast into the mold along the center hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010701763.4A CN111842847A (en) | 2020-07-18 | 2020-07-18 | Brake disc and preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010701763.4A CN111842847A (en) | 2020-07-18 | 2020-07-18 | Brake disc and preparation process |
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| CN111842847A true CN111842847A (en) | 2020-10-30 |
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| CN202010701763.4A Pending CN111842847A (en) | 2020-07-18 | 2020-07-18 | Brake disc and preparation process |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943234A (en) * | 2010-08-06 | 2011-01-12 | 昆明理工大学 | Compound technology of titanium carbide reinforced cast iron base brake disc |
| CN103074509A (en) * | 2013-01-10 | 2013-05-01 | 山东正诺机械科技有限公司 | Preparation method of brake-disc aluminum matrix compound material strengthened by silicon carbide-zirconium oxide particles |
| CN103939509A (en) * | 2014-04-22 | 2014-07-23 | 浙江天乐新材料科技有限公司 | Al/Sic and Cu/Sic composite material friction pair used for railway vehicle and manufacturing method thereof |
| CN108220844A (en) * | 2018-01-29 | 2018-06-29 | 辽宁忠旺集团有限公司 | A kind of moulding process of riding automobile-used aluminium alloy braking disc |
| CN109055798A (en) * | 2018-08-03 | 2018-12-21 | 北京汽车股份有限公司 | Preparation method, brake disc and the vehicle of brake disc for vehicle |
| CN109321767A (en) * | 2018-09-30 | 2019-02-12 | 郑州轻工业学院 | A kind of method that compound augmentation prepares aluminium based composite material enhanced by miscellaneous granules |
| CN110670003A (en) * | 2019-09-30 | 2020-01-10 | 山东隆基机械股份有限公司 | Mineral material reinforced aluminum-based brake disc and production process thereof |
-
2020
- 2020-07-18 CN CN202010701763.4A patent/CN111842847A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943234A (en) * | 2010-08-06 | 2011-01-12 | 昆明理工大学 | Compound technology of titanium carbide reinforced cast iron base brake disc |
| CN103074509A (en) * | 2013-01-10 | 2013-05-01 | 山东正诺机械科技有限公司 | Preparation method of brake-disc aluminum matrix compound material strengthened by silicon carbide-zirconium oxide particles |
| CN103939509A (en) * | 2014-04-22 | 2014-07-23 | 浙江天乐新材料科技有限公司 | Al/Sic and Cu/Sic composite material friction pair used for railway vehicle and manufacturing method thereof |
| CN108220844A (en) * | 2018-01-29 | 2018-06-29 | 辽宁忠旺集团有限公司 | A kind of moulding process of riding automobile-used aluminium alloy braking disc |
| CN109055798A (en) * | 2018-08-03 | 2018-12-21 | 北京汽车股份有限公司 | Preparation method, brake disc and the vehicle of brake disc for vehicle |
| CN109321767A (en) * | 2018-09-30 | 2019-02-12 | 郑州轻工业学院 | A kind of method that compound augmentation prepares aluminium based composite material enhanced by miscellaneous granules |
| CN110670003A (en) * | 2019-09-30 | 2020-01-10 | 山东隆基机械股份有限公司 | Mineral material reinforced aluminum-based brake disc and production process thereof |
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