CN112343948A - Manufacturing method of mandrel component, mandrel component and textile machine applying mandrel component - Google Patents
Manufacturing method of mandrel component, mandrel component and textile machine applying mandrel component Download PDFInfo
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- CN112343948A CN112343948A CN202011225138.3A CN202011225138A CN112343948A CN 112343948 A CN112343948 A CN 112343948A CN 202011225138 A CN202011225138 A CN 202011225138A CN 112343948 A CN112343948 A CN 112343948A
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- 239000004753 textile Substances 0.000 title claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 29
- 239000000843 powder Substances 0.000 claims abstract description 106
- 239000002994 raw material Substances 0.000 claims abstract description 82
- 238000000034 method Methods 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 50
- 238000005245 sintering Methods 0.000 claims abstract description 38
- 238000005238 degreasing Methods 0.000 claims abstract description 21
- 238000007872 degassing Methods 0.000 claims abstract description 19
- 239000002344 surface layer Substances 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000004663 powder metallurgy Methods 0.000 claims description 7
- 229920000620 organic polymer Polymers 0.000 claims description 5
- 238000013022 venting Methods 0.000 claims 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- 238000007731 hot pressing Methods 0.000 description 7
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
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- 239000011368 organic material Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
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- 238000002360 preparation method Methods 0.000 description 1
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Classifications
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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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/027—Compositions based on metals or inorganic oxides
-
- 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
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- 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
- B22F7/02—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 layers
-
- 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
- F16D2200/0008—Ferro
-
- 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
-
- 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
- F16D2200/0086—Moulding materials together by application of heat and pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The core shaft part is a double-material or multi-material cylindrical part, can be used for textile machinery, uses a first powder raw material as a core supporting raw material, uses a second powder raw material as a working surface layer raw material, charges according to the design specification, the first powder raw material is in the inner part, the second powder raw material is out, an interface model cylinder is arranged between the first powder raw material and the second powder raw material, the cylinder wall of the interface model cylinder has a fluctuation structure, can be thermally decomposed, can be removed between the first powder raw material and the second powder raw material in a degassing pre-burning or degreasing mode, and forms a core supporting and working surface layer by the metallurgy sintering of the first powder raw material and the second powder raw material respectively after the interface model cylinder is removed, and forms a non-linear interface structure corresponding to the shape of the fluctuation structure of the cylinder wall of the interface model cylinder at a sintering interface. The method is simple and rapid to operate, powder does not need to be pressed respectively, a separate operation program for processing an interface does not need to be added, the core support can be constructed to be solid or hollow, and the application is wide.
Description
Technical Field
The invention relates to the technical field of manufacturing of mechanical friction parts, in particular to a manufacturing method of a mandrel component, the mandrel component and a textile machine applying the mandrel component.
Background
Many of the spindle parts used for bearing the friction force in the rotary motion in the mechanical equipment are bi-material or multi-material parts, the core layer material plays a role of basic support, the surface layer material is used as a wear-resistant working part and bears or is prepared to bear the friction force imposed by the rotary working part, the spindle parts can also be manufactured by adopting a powder metallurgy process, for example, a metal powder material with better strength and plasticity is used as a core part support material in the manufacturing process to play a role of basic support and deformation and fracture prevention, and a metal powder material with more outstanding strength and wear resistance is used as a wear-resistant working part material. In particular powder metallurgy process operations, in addition to ensuring matching of selected powder materials to desired performance specifications and ensuring matching of sintering parameters to material properties, the sinter bond strength of dissimilar material interfaces is ensured by prior physical or chemical treatment of the two different powder interfaces, for example with proper interfacial bonding to reduce the risk of bond failure between material layers and to block the propagation path of cracks or brittle intermediates. Such prior treatment of the material interface at present often has a major impact on the implementation procedure of the powder metallurgy process, for example the powder has to be pressed separately or a separate procedure for treating the interface has to be added.
Disclosure of Invention
In view of the above, the present invention provides a method for manufacturing a mandrel component, which can manufacture an interface structure on a sintered bi-material or multi-material interface by a simplified interface manufacturing process, and can be particularly used for manufacturing a mandrel component of a textile machine, for example.
The purpose of the invention is realized by the following technical scheme.
A method for manufacturing a mandrel component, wherein the mandrel component is a dual-material or multi-material cylindrical mandrel component, is manufactured by a powder metallurgy method, and at least comprises the following steps:
using a first powder material as a core support material and a second powder material as a work surface material, charging the materials to design specifications with the first powder material as the core support material being inside and the second powder material as the work surface material being outside, placing an interface model cylinder between the first powder raw material and the second powder raw material, wherein the interface model cylinder is a thin-wall cylinder with a cylinder wall having an undulating structure and made of a thermally decomposable material and can be removed between the first powder raw material and the second powder raw material in a degassing pre-sintering or degreasing mode, and after removing the interface mold cylinder, the first powder feedstock and the second powder feedstock are each metallurgically sintered to form a core support and working surface, forming a non-linear interface structure corresponding to the shape of the wall relief structure of the interface model cylinder at the sintering interface of the core support and the working surface layer;
wherein, in the loading according to the design specification:
firstly, placing an interface model cylinder into the center of a mold cavity, wherein the laid first powder raw material and second powder raw material are both non-bonding powder, loading and compacting, respectively laying the first powder raw material and the second powder raw material in the inner side space and the outer side space of the interface model cylinder, then carrying out degassing pre-sintering and sintering, and decomposing the interface model cylinder in the degassing pre-sintering process; or, the first powder raw material and the second powder raw material are mixed with a forming agent, after the first powder raw material and the second powder raw material are respectively paved in the inner side space and the outer side space of the interface model cylinder, degreasing and sintering are carried out, the interface model cylinder is decomposed in the degreasing process, and the interface model cylinder and the forming agent are removed together.
In the method for manufacturing a spindle member as described above, the core support is solid or hollow.
In the manufacturing method of the spindle component, the processes from loading to sintering are all carried out in the hot-pressing die, and the adopted hot-pressing die structure comprises the die upper cover, the die lower cover and the ring sleeve.
In the method for manufacturing a mandrel component, the lower end of the interface mold cylinder is provided with a straight positioning part, and the upper surface of the lower mold cover is provided with a positioning ring groove for receiving the positioning part.
According to the manufacturing method of the mandrel component, the ring sleeve is provided with the exhaust channel.
In the method for manufacturing a mandrel member as described above, the pressure applied to the hot press mold is not higher than 20MPa during the deaeration pre-sintering or degreasing, and after the deaeration pre-sintering or degreasing is completed, the pressure is increased to perform sintering.
In the method of manufacturing a mandrel member, the first powder material and the second powder material may be Fe-based, Ni-based, Cu-based, or Mg-based.
In the method for manufacturing a mandrel component as described above, the material for manufacturing the interface mold cylinder is an organic polymer.
A mandrel component made by the method as described above.
A textile machine comprising a mandrel assembly as hereinbefore described.
The invention has the beneficial effects that:
the invention provides a method for manufacturing a mandrel component, which uses a first powder raw material as a core supporting raw material, uses a second powder raw material as a working surface layer raw material, places an interface model cylinder which has a cylinder wall with an undulation structure and is made of a heat decomposable material between the first powder raw material and the second powder raw material, can remove the interface model cylinder between the first powder raw material and the second powder raw material in a way of degassing pre-burning or degreasing, and after removing the interface model cylinder, the first powder raw material and the second powder raw material are respectively sintered metallurgically to form a core supporting and working surface layer, and forms a non-linear interface structure corresponding to the undulation structure shape of the cylinder wall of the interface model cylinder at the sintering interface of the core supporting and the working surface layer, and the interface structure can play the role of meshing with a proper interface to reduce the risk of material interlayer bonding failure, the method has simple and quick operation, basically has no influence on the implementation procedure of the powder metallurgy process, naturally removes the interface model cylinder in the degassing pre-sintering or degreasing procedure, does not need to respectively press powder, does not need to increase a separate operation procedure for processing the interface, and can obtain a product which is as dense as the conventional process and has qualified mechanical property by the operation of the hot pressing process.
Drawings
Fig. 1 is a schematic structural diagram of an interface model cartridge used in the method according to the embodiments of the present invention.
Fig. 2 is a schematic diagram illustrating the operation of the process in the hot press mold in the method of the embodiments of the present invention.
Fig. 3 is another schematic structural diagram of an interface model cartridge used in the method according to the embodiments of the present invention.
Fig. 4 is a schematic diagram illustrating the operation of a process in another configuration of a hot press mold in accordance with the method of the various embodiments of the present invention.
The components represented by the reference numerals in the figures are:
the device comprises a first powder raw material-1, a second powder raw material-2, an interface model cylinder-3, a mould upper cover-4, a mould lower cover-5, a ring sleeve-6, a positioning part 7 and an exhaust passage-8.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.
Example 1
Referring first to fig. 2, in this embodiment, a bi-material or multi-material cylindrical mandrel component is manufactured by a powder metallurgy method in a hot-pressing mold shown in fig. 2, and the cylindrical mandrel component is applied to textile machinery.
It should be noted that, in order to make a brief and understandable description of the principle of the present invention, the product shape of the present embodiment is a simplified and regular columnar shape, and it is easily understood that the structural shapes of the mandrel components in the mechanical device may be various, such as stepped, spliced, hollow, etc., as long as the inner and outer dual material structures are satisfied and the product can be manufactured by the method described in the present invention.
Specifically, the hot-pressing die structure comprises an upper die cover 4, a lower die cover 5 and a ring sleeve 6, wherein the upper die cover 4, the lower die cover 5 and the ring sleeve 6 enclose a powder raw material adding cavity and a forming cavity of the mandrel component.
With reference to fig. 1 and 2, the method for manufacturing the mandrel member includes:
using a first powder raw material 1 as a core supporting raw material, using a second powder raw material 2 as a working surface layer raw material, charging according to design specifications, wherein the first powder raw material 1 as the core supporting raw material is arranged in the inner part, the second powder raw material 2 as the working surface layer raw material is arranged outside, an interface model cylinder 3 is arranged between the first powder raw material 1 and the second powder raw material 2, the interface model cylinder 3 is a thin-wall cylinder (the thickness of the thin-wall cylinder is 1.5mm or less, preferably 0.5mm or less in principle) which has a fluctuating structure and is made of a heat decomposable material, the thin-wall cylinder can be removed between the first powder raw material 1 and the second powder raw material 2 in a degassing and pre-burning mode, and after the interface model cylinder 3 is removed, the first powder raw material 1 and the second powder raw material 2 are respectively metallurgically sintered to form a core supporting and working surface layer, a non-linear interface configuration corresponding to the shape of the wall relief structure of the interface model cylinder 3 is formed at the sintering interface of the core support and working surface layer.
Corresponding to the "degassing and pre-sintering manner" in this embodiment, in the loading according to the design specification, the interface mold cylinder 3 is first placed in the central portion of the mold cavity, the first powder raw material 1 and the second powder raw material 2 which are laid are both non-cohesive powder, and are compacted while being loaded, after the first powder raw material 1 and the second powder raw material 2 are respectively laid in the inner side space and the outer side space of the interface mold cylinder 3, degassing and pre-sintering are performed, and the interface mold cylinder 3 is decomposed in the degassing and pre-sintering process.
Although the figures of the present invention exemplify the core support configuration as being solid, it is readily understood that it may also be hollow, when hollow, the charging may be accomplished by means of an additional central charging barrel.
Further, as shown in fig. 3, it is preferable to provide a flat positioning portion 7 at the lower end of the interface mold cylinder 3, and a positioning ring groove for receiving the positioning portion 7 is correspondingly provided on the upper surface of the lower mold cover 5, so that the position of the interface mold cylinder 3 is easily maintained not to be moved during charging and compacting.
The final temperature of the degassing pre-sintering in this embodiment is based on the capability of completely decomposing the interface model cylinder 3, the material for manufacturing the interface model cylinder 3 preferably contains an organic polymer, the organic polymer includes one or more of polyethylene, polypropylene, polyvinyl chloride, and polystyrene, the thermal decomposition temperature of the organic polymer is generally not more than 600 ℃, in addition, the main element powder (i.e. the matrix element, when the main element is different, the melting point of the first and second powder raw materials is relatively lower) with the mass fraction not less than 5% and not more than 30% is added to the organic material, so as to well promote the fusion of the two-phase material under the precondition of controlling the organic dosage, in this embodiment, the first powder raw material 1 and the second powder raw material 2 may be selected from Fe-based, Ni-based, Cu-based, or Mg-based metal materials, and alloys or elemental powder mixtures.
As shown in fig. 2, the degassing, pre-sintering and sintering processes are performed in a hot-pressing mold, the powder is loaded and the powder loading carrier is compacted or compacted during the powder loading stage, the pressure applied to the hot-pressing mold does not exceed 20MPa during the degassing and pre-sintering process, and the pressure is increased after the degassing and pre-sintering process is completed to perform sintering.
By way of example and not limitation, as shown in fig. 4, an exhaust passage 8 may be formed on the ring sleeve 6 of the hot press mold, in case of better sealing of the hot press mold, so as to facilitate smooth guiding of the decomposed gas, and the exhaust passage 8 may be a structure having a main passage and a plurality of branches as shown in the figure.
Verification example 1
A medium carbon Fe-based alloy powder containing about 0.3 wt% of silicon and about 0.6 wt% of manganese was used as a first powder raw material 1, a high carbon Fe-based alloy powder containing about 14 wt% of Cr and 2.5 wt% of Mo was used as a second powder raw material 2, a polyvinyl chloride thin-walled cylinder having a thickness of about 0.4mm was selected as an interface mold cylinder 3, and the mixture was sintered at a final sintering temperature of about 1350 ℃ for 5 hours at a degassing pre-sintering temperature of 280 ℃ by the method of example 1, during which the maximum pressure applied was 150 MPa. Finally, a columnar core shaft part product with the density of about 97 percent can be obtained, and the nonlinear interface structure at the material interface is uniform in shape.
Example 2
Still referring to fig. 1 to 4, this embodiment is substantially the same as the object of the preparation, the hot press mold used and the process used in example 1, and the interface mold cylinder 3 used is the same, except that in the design specification charging, the first powder material 1 and the second powder material 2 are mixed with the molding agent having a volume content of 7%, and after the interface mold cylinder 3 is placed in the center of the mold cavity and the first powder material 1 and the second powder material 2 are respectively placed in the inner and outer side spaces of the interface mold cylinder 3, degreasing and sintering are performed, and in the degreasing process, the interface mold cylinder 3 is decomposed and removed together with the molding agent.
The final temperature of the above degreasing process in this embodiment is based on the capability of completely decomposing the forming agent and the interface mold cylinder 3, and the degreasing and sintering processes in this embodiment are both performed in a hot press mold, the powder carrier in the hot press mold is tamped before the degreasing process, the pressure applied to the hot press mold during the degreasing process does not exceed 20MPa, and after the degreasing process is completed, the pressure is increased to perform sintering, and the hot press mold with the exhaust passage 8 shown in fig. 4 is preferably selected in this embodiment.
Verification example 2
A medium carbon Fe-based alloy powder containing about 0.3 wt% of silicon and about 0.6 wt% of manganese is used as a first powder raw material 1, a phenolic resin-based forming agent is added at a volume content of 7%, a high carbon Fe-based alloy powder containing about 14 wt% of Cr and 2.5 wt% of Mo is used as a second powder raw material 2, a phenolic resin-based forming agent is added at a volume content of 7%, a polyvinyl chloride thin-wall cylinder with a thickness of about 0.4mm is selected as an interface mold cylinder 3, the degreasing temperature is 500 ℃, and the polyvinyl chloride thin-wall cylinder is sintered at a final sintering temperature of about 1350 ℃ for 5 hours according to the method of example 2, wherein the maximum pressure applied during the sintering is 150 MPa. Finally, a columnar core shaft part product with the density of about 97 percent can be obtained, and the structure shape of the nonlinear interface at the material interface is uniform.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A method of making a mandrel component that is a bi-or multi-material cylindrical mandrel component, characterized by being made by a powder metallurgy method, comprising at least:
using a first powder raw material (1) as a core supporting raw material, using a second powder raw material (2) as a working surface layer raw material, charging according to design specifications, wherein the first powder raw material (1) as the core supporting raw material is arranged in the inner part, the second powder raw material (2) as the working surface layer raw material is arranged outside, an interface model cylinder (3) is arranged between the first powder raw material (1) and the second powder raw material (2), the interface model cylinder (3) is a thin-wall cylinder which has a cylinder wall with an undulated structure and is made of a heat-decomposable material, can be removed between the first powder raw material (1) and the second powder raw material (2) in a degassing pre-burning or degreasing mode, and after the interface model cylinder (3) is removed, the first powder raw material (1) and the second powder raw material (2) are respectively metallurgically sintered to form a core supporting and working surface layer, forming a non-linear interface structure corresponding to the shape of the wall relief structure of the interface model cylinder (3) at the sintering interface of the core support and the working surface layer;
wherein, in the loading according to the design specification:
firstly, placing an interface model cylinder (3) into the central part of a mould cavity, wherein the laid first powder raw material (1) and second powder raw material (2) are both non-bonding powder, loading and compacting, respectively laying the first powder raw material (1) and the second powder raw material (2) in the inner side space and the outer side space of the interface model cylinder (3), then, carrying out pre-sintering and degassing, and decomposing the interface model cylinder (3) in the pre-sintering process; or, the first powder raw material (1) and the second powder raw material (2) are mixed with a forming agent, after the first powder raw material (1) and the second powder raw material (2) are respectively laid in the inner side space and the outer side space of the interface model cylinder (3), degreasing and sintering are carried out, and the interface model cylinder (3) is decomposed in the degreasing process and is removed together with the forming agent.
2. The method of making a mandrel subassembly of claim 1 wherein said core support structure is solid or hollow.
3. A method of manufacturing a spindle component according to claim 1, characterized in that the processes from charging to sintering are performed in a hot press, the hot press structure comprising a top cover (4), a bottom cover (5) and a collar (6).
4. A method of manufacturing a spindle component according to claim 3, characterized in that a straight positioning portion (7) is provided at the lower end of the interface mold cylinder (3), and a positioning ring groove for receiving the positioning portion (7) is provided on the upper surface of the mold lower cover (5).
5. A method of manufacturing a spindle component according to claim 3, characterised in that an air venting channel (8) is provided in the collar (6).
6. The method of manufacturing a spindle member according to claim 3, wherein the pressure applied to the hot press mold is not higher than 20MPa when the degassing and the pre-baking or the degreasing are performed, and the pressure is increased after the degassing and the pre-baking or the degreasing are completed, and the sintering is performed.
7. A method of manufacturing a spindle component according to claim 1, characterized in that the first powder material (1) and the second powder material (2) are Fe-based, Ni-based, Cu-based or Mg-based.
8. A method of manufacturing a spindle component according to claim 1, characterized in that the interface model cylinder (3) is made of an organic polymer.
9. A mandrel component made by the method of any one of claims 1 to 8.
10. A textile machine comprising a mandrel assembly according to claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011225138.3A CN112343948B (en) | 2020-11-05 | 2020-11-05 | Manufacturing method of mandrel component, mandrel component and textile machine applying mandrel component |
| PCT/CN2020/129021 WO2022095111A1 (en) | 2020-11-05 | 2020-11-16 | Manufacturing method for mandrel part, mandrel part, and textile machinery applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011225138.3A CN112343948B (en) | 2020-11-05 | 2020-11-05 | Manufacturing method of mandrel component, mandrel component and textile machine applying mandrel component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112343948A true CN112343948A (en) | 2021-02-09 |
| CN112343948B CN112343948B (en) | 2021-08-06 |
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| CN202011225138.3A Active CN112343948B (en) | 2020-11-05 | 2020-11-05 | Manufacturing method of mandrel component, mandrel component and textile machine applying mandrel component |
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| CN (1) | CN112343948B (en) |
| WO (1) | WO2022095111A1 (en) |
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| CN112343948B (en) | 2021-08-06 |
| WO2022095111A1 (en) | 2022-05-12 |
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