CN115383113A - Pressureless sintering tool and sintering method for friction body assembly of powder metallurgy brake pad - Google Patents
Pressureless sintering tool and sintering method for friction body assembly of powder metallurgy brake pad Download PDFInfo
- Publication number
- CN115383113A CN115383113A CN202211110782.5A CN202211110782A CN115383113A CN 115383113 A CN115383113 A CN 115383113A CN 202211110782 A CN202211110782 A CN 202211110782A CN 115383113 A CN115383113 A CN 115383113A
- Authority
- CN
- China
- Prior art keywords
- plate
- sintering
- friction body
- tool
- pressureless sintering
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/005—Loading or unloading powder metal objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a pressureless sintering tool and a pressureless sintering method for a friction body assembly of a powder metallurgy brake pad, wherein the sintering tool comprises a bottom plate, a side plate, a back plate, a top plate, a pressing plate, a partition plate and a jacking screw rod, wherein: the bottom plate, the side plates, the back plate and the top plate are connected to form a tool shell, and a sintering cavity is formed inside the tool shell; the partition plates are used for containing friction body assemblies and are sequentially overlapped and placed in the sintering cavity, and the pressing plate is placed on the top-most partition plate; the middle part of the top plate is provided with a threaded through hole, and the jacking screw is screwed into the threaded through hole of the top plate from the upper end and is used for jacking the pressing plate in the sintering cavity and the overlapped partition plate. The invention mainly adopts the pressureless sintering tool to realize the spacing sintering of the friction body assembly, thereby getting rid of the pressurized sintering, solving the problems of unstable sintering size and performance and the like of the friction body assembly, and enabling the friction body assembly to realize the sintering of a continuous sintering furnace by utilizing the pressureless sintering tool, thereby improving the sintering efficiency and realizing the large-scale production.
Description
Technical Field
The invention relates to a pressureless sintering tool and a pressureless sintering method for a friction body assembly of a powder metallurgy brake pad.
Background
With the increase of the mileage of high-speed rails and the number of trains of the motor train unit, the powder metallurgy brake lining is used as an easily-consumed part of a braking system of the motor train unit train, and the demand of the powder metallurgy brake lining is increased. The friction body components are key parts on the powder metallurgy brake pad, a composite part with certain bonding strength is formed by sintering a powder pressed compact and a metal framework, the physical and mechanical properties of the composite part directly influence the safety of a train during braking, and the consistency of the thickness and the size of each friction body component directly influences the effective braking area of the train during braking.
Sintering plays a decisive role in the performance of a friction body assembly, most powder metallurgy friction materials expand in the sintering process, and the powder metallurgy friction body assembly is mostly sintered under pressure at present to promote the combination of pressed compact powder particles and the densification of the materials, promote the bonding and welding of a powder pressed compact and a metal framework, and finally enable the friction body assembly to have a certain thickness and physical and mechanical properties meeting the standard requirements.
As for the sintering furnace, at present, there are mainly divided into a batch type sintering furnace and a continuous type sintering furnace, each of which has the following problems:
(1) Intermittent sintering: the method is mainly used for small-batch production. Although pressure sintering can be realized, the powder compact has direction anisotropy during sintering, and the phenomenon of uneven compression exists among products, so that the consistency of the appearance, sintering size and performance of a final product cannot be ensured.
(2) Continuous sintering: the method is mainly used for mass production. Although the sintering furnace has the characteristics of high economy, high production efficiency, uniform sintering quality and the like, a pressurizing device is not arranged in the furnace, and the arch bridge effect among powder metallurgy pressed compact particles causes more pores in the material, so that the material has low friction factor and poor wear resistance, and cannot meet the standard requirements.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a pressureless sintering tool and a pressureless sintering method for a friction piece assembly of a powder metallurgy brake pad.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a powder metallurgy brake lining friction member subassembly non-pressure sintering frock, includes bottom plate, curb plate, backplate, roof, clamp plate, baffle and the tight screw rod in top, wherein: the bottom plate, the side plates, the back plate and the top plate are connected to form a tool shell, and a sintering cavity is formed inside the tool shell; the partition plates are used for containing friction body assemblies and are sequentially overlapped and placed in the sintering cavity, and the pressing plate is placed on the top-most partition plate; and the middle part of the top plate is provided with a threaded through hole, and the jacking screw is screwed into the threaded through hole of the top plate from the upper end and is used for jacking the pressing plate in the sintering cavity and the overlapped partition plate.
The invention also provides a pressureless sintering method of the powder metallurgy brake pad friction body assembly, which comprises the following steps:
step one, connecting a bottom plate, a side plate, a back plate and a top plate through connecting bolts to form a tool shell, wherein a sintering cavity is formed inside the tool shell;
step two, assembling a jacking screw on a top plate;
loading friction body assemblies on the partition plates, and overlapping and placing a plurality of partition plates fully loaded with the friction body assemblies in the sintering cavity;
placing the pressing plate on a limiting boss of the clapboard at the topmost layer;
step five, screwing the jacking screw rod to tightly jack the pressing plate and the partition plate to obtain the assembled pressureless sintering tool;
placing the assembled pressureless sintering tool at an inlet of a continuous sintering furnace to sinter according to a program;
step seven, taking out the pressureless sintering tool from the outlet of the continuous sintering furnace after sintering, loosening the jacking screw rod, taking out the pressing plate, taking out the partition plates from top to bottom in sequence, and taking out the sintered friction body assembly from the partition plates;
and step eight, sequentially repeating the step three to the step seven by adopting a plurality of pressureless sintering tools, thereby realizing continuous sintering.
Compared with the prior art, the invention has the positive effects that: the invention mainly adopts the pressureless sintering tool to realize the spacing sintering of the friction body assembly, thereby getting rid of the pressurized sintering, solving the problems of unstable sintering size and performance and the like of the friction body assembly, and enabling the friction body assembly to realize the sintering of a continuous sintering furnace by using the pressureless sintering tool, thereby improving the sintering efficiency, saving the energy, reducing the sintering cost and realizing the large-scale production. The method has the following specific advantages:
(1) The pressureless sintering tool has unique structural design, and particularly, the jacking screw device not only has good limiting effect on the tool, but also ensures the assembly and disassembly efficiency of the friction body assembly. Meanwhile, the pressureless sintering tool comprises high-strength graphite and aluminum oxide ceramic, so that the problem of deformation of the tool caused by long-time use under a high-temperature working condition can be effectively solved, and the pressureless sintering tool has the characteristics of light overall weight, good recycling effect, convenience in operation and the like.
(2) The pressureless sintering tool can carry out limit sintering on the friction body, and ensures the consistency of the sintering size of the friction body and the stability of the sintering performance.
(3) The powder metallurgy friction body can realize the sintering of a continuous sintering furnace through a plurality of pressureless sintering tools, thereby not only improving the sintering quality and the sintering efficiency of products, but also saving energy, reducing the sintering cost and realizing large-scale production.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of all the components of the pressureless sintering tool of the present invention;
FIG. 2 is a schematic structural view of a separator;
FIG. 3 is a schematic structural diagram of a pressureless sintering tool after assembly;
the reference numbers in the figures include: the connecting bolt comprises a connecting bolt 100, a bottom plate 200 (comprising a counter bore 210), a partition plate 300 (comprising a positioning ball pin hole 310 and a limiting boss 320), a side plate 400 (comprising a threaded hole 410), a back plate 500 (comprising a threaded hole 510), a pressing plate 600, a top plate 700 (comprising a counter bore 710 and a threaded through hole 720), a jacking screw 800 and a friction body assembly 900 (comprising a metal framework 910 and a powder pressed blank 920).
Detailed Description
A pressureless sintering tool for a powder metallurgy brake pad friction body assembly, as shown in fig. 1, comprises: connecting bolt 100, bottom plate 200, baffle 300, curb plate 400, backplate 500, clamp plate 600, top plate 700 and top tight screw 800 etc. wherein:
a plurality of counter bores 210 are formed in three circumferences of the bottom plate 200; the middle part of the partition board 300 is provided with a plurality of positioning ball pin holes 310, and both sides are provided with limiting bosses 320, as shown in fig. 2; two end faces of the side plate 400 are respectively provided with a plurality of threaded holes 410; a plurality of threaded holes 510 are formed in two end faces of the back plate 500; the top plate 700 is provided with a plurality of counter bores 710 at three circumferences and a plurality of thread through holes 720 at the middle part.
The bottom plate 200 and the top plate 700 are respectively connected with the side plate 400 and the back plate 500 through the connecting bolts 100, wherein: the connecting bolt 100 passes through the counter bore 210 on the bottom plate 200 from the lower part of the bottom plate 200 and is screwed into the threaded holes 410 on the lower end surfaces of the left and right side plates 400 and the threaded hole 510 on the lower end surface of the back plate 500 respectively; the connecting bolts 100 are screwed into the threaded holes 410 on the upper end surfaces of the left and right side plates 400 and the threaded holes 510 on the upper end surface of the back plate 500 from above the top plate 700 through the counter bores 710 on the top plate 700. The tightening screw 800 is screwed into the threaded through hole 720 of the top plate 700 from the upper end, and a pressureless sintering tool shell is assembled to form a sintering cavity. The partition plates 300 can be sequentially overlapped and placed in the sintering cavity, the pressing plate 600 can be parallelly placed on the limiting boss 320 of the topmost partition plate, and the pressing plate 600 can be tightly pushed and loosened by clockwise and anticlockwise rotating the tightening screw 800 on the shell of the pressureless sintering tool.
The material of the connecting bolt 100 is aluminum oxide ceramic, and the sintering tool bottom plate 200, the partition plate 300, the side plate 400, the back plate 500, the pressing plate 600, the top plate 600 and the jacking screw 800 are made of high-strength graphite, so that the pressureless sintering tool has enough high-temperature resistance.
The sintering method comprises the following steps:
1) The connecting bolt 100, the bottom plate 200, the side plate 400, the back plate 500, the top plate 700 and the tightening screw 800 are assembled to form a pressureless sintering tool shell, and a sintering cavity is formed inside the pressureless sintering tool shell.
2) A plurality of metal frames 910 are placed in a plurality of ball pin holes 310 of a plurality of the separator plates 300.
3) A plurality of powder compacts 920 are correspondingly placed on a plurality of metal frameworks to form a plurality of friction body assemblies to be sintered.
4) Placing a plurality of the partition plates 300 fully loaded with friction body assemblies in an overlapped manner in the sintering cavity.
5) The pressing plate 600 is placed on the top-most clapboard limiting boss 320.
6) And rotating the jacking screw rod 800 clockwise to jack the pressing plate 600 and the plurality of the partition plates 300 to obtain the pressureless sintering tool after assembly, as shown in fig. 3.
7) And placing the pressureless sintering tool after assembly at the inlet of the continuous sintering furnace to sinter according to the program.
8) And after sintering is finished, taking out the pressureless sintering tool from the outlet of the continuous sintering furnace, rotating the jacking screw rod 800 anticlockwise to loosen the pressing plate 600, firstly taking out the pressing plate 600, then sequentially taking out the partition plates 300 from top to bottom, and finally taking out the sintered friction body assembly from the partition plates 300.
9) And (3) sequentially repeating the step 2) to the step 8) by adopting a plurality of pressureless sintering tools, so that continuous sintering is achieved.
The working principle of the invention is as follows:
the pressureless sintering tool does not need external pressurization, the partition plate 300 and the top-layer pressing plate 600 which are provided with the friction body assemblies 900 are arranged in the sintering cavity in an overlapping mode, finally the pressing plate 600 and the partition plates 300 which are provided with the friction body assemblies are tightly pressed by rotating the pressing screw 800 clockwise, a limiting area with the height of the limiting boss 320 is formed above each partition plate 300, the sintering expansion height of the friction bodies is limited in the height area, and therefore bonding among friction body particles and material densification are promoted, and bonding and welding of a pressed blank and a framework are promoted. The method comprises the following specific steps:
1. the tight screw rod 800 device in top is adopted in non-pressure sintering frock top, during the assembly sintering of frictional body subassembly, the tight screw rod 800 in top can carry out the pretension to the inside clamp plate 600 of cavity and the baffle 300 that is equipped with the frictional body subassembly, thereby can take place expanded frictional body and play good spacing effect in the sintering process, the frictional body subassembly accomplishes the sintering back, the frictional body that has the expansion trend in the sintering cavity can produce great pressure to clamp plate 600 and baffle 300, can accomplish the release easily through the tight screw rod 800 in anticlockwise rotation top in order to take out clamp plate 600 and the baffle 300 that is equipped with the frictional body subassembly.
2. The limiting structure of the pressureless sintering tool limits free expansion of friction bodies during sintering, promotes combination among powder pressed compact particles and densification of materials, promotes bonding effect of the powder pressed compact and a metal framework, and all the friction bodies are uniform in thickness and size and meet standard requirements in physical and mechanical properties.
3. The pressureless sintering tool can improve the sintering efficiency of the friction body assembly in the continuous sintering furnace, save energy and reduce the sintering cost.
Claims (10)
1. The utility model provides a powder metallurgy brake lining friction member subassembly pressureless sintering frock which characterized in that: including bottom plate, curb plate, backplate, roof, clamp plate, baffle and the tight screw rod in top, wherein: the bottom plate, the side plates, the back plate and the top plate are connected to form a tool shell, and a sintering cavity is formed inside the tool shell; the partition plates are used for containing friction body assemblies and are sequentially overlapped and placed in the sintering cavity, and the pressing plate is placed on the top-most partition plate; the middle part of the top plate is provided with a threaded through hole, and the jacking screw is screwed into the threaded through hole of the top plate from the upper end and is used for jacking the pressing plate in the sintering cavity and the overlapped partition plate.
2. The pressureless sintering tool for friction body assemblies of powder metallurgy brake pads according to claim 1, characterized in that: the bottom plate and the top plate are respectively connected with the side plate and the back plate through connecting bolts.
3. The pressureless sintering tool for friction body assemblies of powder metallurgy brake pads according to claim 2, is characterized in that: the bottom plate is provided with a plurality of countersunk holes at three peripheries, the lower end faces of the side plate and the back plate are provided with a plurality of threaded holes, and the connecting bolts penetrate through the countersunk holes in the bottom plate from the lower part of the bottom plate and are screwed into the threaded holes in the lower end faces of the side plate and the back plate respectively.
4. The pressureless sintering tool for friction body assemblies of powder metallurgy brake pads according to claim 2, is characterized in that: the upper end faces of the side plate and the back plate are respectively provided with a plurality of threaded holes, a plurality of counter bores are formed in the three peripheries of the top plate, and the connecting bolts penetrate through the counter bores in the top plate from the upper portion of the top plate and respectively screwed into the threaded holes in the upper end faces of the side plate and the back plate.
5. The pressureless sintering tool for friction body assemblies of powder metallurgy brake pads according to claim 2, is characterized in that: the connecting bolt is made of aluminum oxide ceramics.
6. The pressureless sintering tool for powder metallurgy brake lining friction body assemblies according to claim 1, is characterized in that: the bottom plate, the partition plate, the side plates, the back plate, the pressing plate, the top plate and the jacking screw rod are all made of high-strength graphite.
7. The pressureless sintering tool for powder metallurgy brake lining friction body assemblies according to claim 1, is characterized in that: and the middle part of the clapboard is provided with a positioning ball pin hole for placing a metal framework of the friction body assembly.
8. The pressureless sintering tool for friction body assemblies of powder metallurgy brake pads according to claim 1, characterized in that: limiting bosses are arranged on two sides of the partition board, and the pressing board is placed on the limiting bosses of the topmost partition board.
9. A pressureless sintering method for a friction body assembly of a powder metallurgy brake pad is characterized in that: the method comprises the following steps:
connecting a bottom plate, a side plate, a back plate and a top plate through connecting bolts to form a tool shell, wherein a sintering cavity is formed inside the tool shell;
step two, assembling a jacking screw on a top plate;
loading friction body assemblies on the partition plates, and overlapping and placing the partition plates fully loaded with the friction body assemblies in the sintering cavity;
placing the pressing plate on the limiting boss of the topmost partition plate;
step five, screwing the jacking screw rod to tightly jack the pressing plate and the partition plate to obtain the assembled pressureless sintering tool;
placing the assembled pressureless sintering tool at an inlet of a continuous sintering furnace to be sintered along with a program;
step seven, taking out the pressureless sintering tool from the outlet of the continuous sintering furnace after sintering, loosening the jacking screw rod, taking out the pressing plate, taking out the partition plates from top to bottom in sequence, and taking out the sintered friction body assembly from the partition plates;
and step eight, sequentially repeating the step three to the step seven by adopting a plurality of pressureless sintering tools, thereby realizing continuous sintering.
10. The pressureless sintering method for powder metallurgy brake lining friction body assemblies according to claim 9, wherein: step three, the method for loading the friction body assembly on the partition plate comprises the following steps: firstly, a metal framework of the friction body assembly is placed in a locating ball pin hole of the partition plate, and then a powder compact of the friction body assembly is placed on the metal framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211110782.5A CN115383113B (en) | 2022-09-13 | 2022-09-13 | Pressureless sintering tool and sintering method for powder metallurgy brake pad friction body assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211110782.5A CN115383113B (en) | 2022-09-13 | 2022-09-13 | Pressureless sintering tool and sintering method for powder metallurgy brake pad friction body assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115383113A true CN115383113A (en) | 2022-11-25 |
| CN115383113B CN115383113B (en) | 2023-08-25 |
Family
ID=84127503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211110782.5A Active CN115383113B (en) | 2022-09-13 | 2022-09-13 | Pressureless sintering tool and sintering method for powder metallurgy brake pad friction body assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115383113B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6060017A (en) * | 1999-01-08 | 2000-05-09 | Metal Industries Research & Development Centre | Method for sintering a metallic powder |
| CN2625082Y (en) * | 2003-06-05 | 2004-07-14 | 华南理工大学 | Heat transfer oil powder heater used in powder metallurgy warm pressing technology |
| KR200404467Y1 (en) * | 2005-09-20 | 2005-12-23 | 주식회사 에스.오.비 | Sliding bearing with solid-state sintered layer |
| CN101826474A (en) * | 2009-03-04 | 2010-09-08 | Abb研究有限公司 | The permanent plant that is used for low-temperature and low-pressure sintering |
| KR101482212B1 (en) * | 2013-10-17 | 2015-01-14 | 한국생산기술연구원 | Mold for sintering |
| CN206779463U (en) * | 2017-06-09 | 2017-12-22 | 山东百德瑞轨道交通科技有限公司 | A kind of breakdown pressure sintering graphite jig |
| CN207013717U (en) * | 2017-04-27 | 2018-02-16 | 金堆城钼业股份有限公司 | Two-step sintering molybdenum boat pack formula mould |
| CN109226772A (en) * | 2018-11-20 | 2019-01-18 | 深圳艾利佳材料科技有限公司 | A kind of hot shaping methods of high-yield strength powder metallurgy product |
| CN110541902A (en) * | 2019-09-06 | 2019-12-06 | 北京浦然轨道交通科技有限公司 | Copper-iron-based powder metallurgy brake pad friction block and preparation method thereof |
| CN210908103U (en) * | 2019-08-19 | 2020-07-03 | 王明心 | Cold isostatic compaction device of grinding material powder for steelmaking |
| CN111570801A (en) * | 2020-05-12 | 2020-08-25 | 北京浦然轨道交通科技股份有限公司 | Powder metallurgy friction body, manufacturing method thereof and powder metallurgy brake pad |
| CN112024873A (en) * | 2020-08-11 | 2020-12-04 | 山东金麒麟股份有限公司 | Powder metallurgy brake pad sintering method |
| CN112458384A (en) * | 2020-11-25 | 2021-03-09 | 浙江炜烨晶体纤维有限公司 | Adopt polycrystal mullite fibre heat retaining discharge plasma sintering mould |
| CN113084170A (en) * | 2021-04-05 | 2021-07-09 | 博深股份有限公司 | Friction block sintering mold suitable for automatic production and using method |
| CN113385670A (en) * | 2021-05-06 | 2021-09-14 | 汕头市西北航空科技有限公司 | Sintering tool and sintering method for powder metallurgy brake pad friction block |
| CN114799168A (en) * | 2022-05-24 | 2022-07-29 | 安徽昊方机电股份有限公司 | Preparation method for metal injection molding of SMT carrier plate jig |
| CN218460863U (en) * | 2022-09-13 | 2023-02-10 | 中铁隆昌铁路器材有限公司 | Non-pressure sintering tool for friction body assembly of powder metallurgy brake pad |
-
2022
- 2022-09-13 CN CN202211110782.5A patent/CN115383113B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6060017A (en) * | 1999-01-08 | 2000-05-09 | Metal Industries Research & Development Centre | Method for sintering a metallic powder |
| CN2625082Y (en) * | 2003-06-05 | 2004-07-14 | 华南理工大学 | Heat transfer oil powder heater used in powder metallurgy warm pressing technology |
| KR200404467Y1 (en) * | 2005-09-20 | 2005-12-23 | 주식회사 에스.오.비 | Sliding bearing with solid-state sintered layer |
| CN101826474A (en) * | 2009-03-04 | 2010-09-08 | Abb研究有限公司 | The permanent plant that is used for low-temperature and low-pressure sintering |
| KR101482212B1 (en) * | 2013-10-17 | 2015-01-14 | 한국생산기술연구원 | Mold for sintering |
| CN207013717U (en) * | 2017-04-27 | 2018-02-16 | 金堆城钼业股份有限公司 | Two-step sintering molybdenum boat pack formula mould |
| CN206779463U (en) * | 2017-06-09 | 2017-12-22 | 山东百德瑞轨道交通科技有限公司 | A kind of breakdown pressure sintering graphite jig |
| CN109226772A (en) * | 2018-11-20 | 2019-01-18 | 深圳艾利佳材料科技有限公司 | A kind of hot shaping methods of high-yield strength powder metallurgy product |
| CN210908103U (en) * | 2019-08-19 | 2020-07-03 | 王明心 | Cold isostatic compaction device of grinding material powder for steelmaking |
| CN110541902A (en) * | 2019-09-06 | 2019-12-06 | 北京浦然轨道交通科技有限公司 | Copper-iron-based powder metallurgy brake pad friction block and preparation method thereof |
| CN111570801A (en) * | 2020-05-12 | 2020-08-25 | 北京浦然轨道交通科技股份有限公司 | Powder metallurgy friction body, manufacturing method thereof and powder metallurgy brake pad |
| CN112024873A (en) * | 2020-08-11 | 2020-12-04 | 山东金麒麟股份有限公司 | Powder metallurgy brake pad sintering method |
| CN112458384A (en) * | 2020-11-25 | 2021-03-09 | 浙江炜烨晶体纤维有限公司 | Adopt polycrystal mullite fibre heat retaining discharge plasma sintering mould |
| CN113084170A (en) * | 2021-04-05 | 2021-07-09 | 博深股份有限公司 | Friction block sintering mold suitable for automatic production and using method |
| CN113385670A (en) * | 2021-05-06 | 2021-09-14 | 汕头市西北航空科技有限公司 | Sintering tool and sintering method for powder metallurgy brake pad friction block |
| CN114799168A (en) * | 2022-05-24 | 2022-07-29 | 安徽昊方机电股份有限公司 | Preparation method for metal injection molding of SMT carrier plate jig |
| CN218460863U (en) * | 2022-09-13 | 2023-02-10 | 中铁隆昌铁路器材有限公司 | Non-pressure sintering tool for friction body assembly of powder metallurgy brake pad |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115383113B (en) | 2023-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218460863U (en) | Non-pressure sintering tool for friction body assembly of powder metallurgy brake pad | |
| CN201618894U (en) | Jig for gear shaping of rotary bearing internal gears | |
| CN103831386B (en) | A kind of production method of brake disc of high-speed train and forging mold | |
| CN100395052C (en) | Model and method for liquid state formation of aluminium hub disc for special vehicle | |
| CN201645343U (en) | Mould for press forming segment of working layer of super hard abrasive grinding wheel along the radius direction | |
| CN108115066A (en) | Forging cloth and its application process with heat preservation and lubricating action | |
| CN201338021Y (en) | Extrusion stem quick-change device | |
| CN115383113A (en) | Pressureless sintering tool and sintering method for friction body assembly of powder metallurgy brake pad | |
| CN208267972U (en) | A kind of propellant embedded with metal silk tooling | |
| CN201198862Y (en) | Sectional type crankshaft structure | |
| CN204748034U (en) | Machine tool table compresses tightly and uses rhombus seat | |
| CN2741686Y (en) | Slope end surface cold extruding combined concave mold | |
| CN1059303A (en) | The production technology of powder metallurgy for mechanical structure parts | |
| CN204639952U (en) | A kind of durable abrasive wheel | |
| CN201841260U (en) | Diamond grinding wheel cold-pressing mold | |
| CN210715679U (en) | Anti-falling friction block for powder metallurgy brake pad | |
| CN201102039Y (en) | Warm extrusion forming mold of nut | |
| CN204234647U (en) | Connecting rod powder forging mold | |
| CN214606103U (en) | Split type stand column and connecting structure of super-tonnage bending machine | |
| CN220073271U (en) | Self-pressurizing sintering tool for powder metallurgy friction block assembly | |
| CN202962528U (en) | Jaw type sand making machine | |
| CN202118047U (en) | Surface-mounting tooling for strain type sensors | |
| CN203295050U (en) | Detachable crane runway pressing plate device | |
| CN202199328U (en) | Hinge beam for hinged cubic hydraulic press | |
| CN201275572Y (en) | Novel press head device of wide and heavy plate flatter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |