CN113649577A - Machining process of circulator shell - Google Patents
Machining process of circulator shell Download PDFInfo
- Publication number
- CN113649577A CN113649577A CN202110840402.2A CN202110840402A CN113649577A CN 113649577 A CN113649577 A CN 113649577A CN 202110840402 A CN202110840402 A CN 202110840402A CN 113649577 A CN113649577 A CN 113649577A
- Authority
- CN
- China
- Prior art keywords
- shell
- injection
- machining
- injection blank
- 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.)
- Pending
Links
- 238000003754 machining Methods 0.000 title claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 71
- 239000007924 injection Substances 0.000 claims abstract description 71
- 238000005245 sintering Methods 0.000 claims abstract description 27
- 238000007493 shaping process Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000007514 turning Methods 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 29
- 238000005488 sandblasting Methods 0.000 claims description 12
- 238000009966 trimming Methods 0.000 claims description 6
- 238000007654 immersion Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 238000000227 grinding Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000005238 degreasing Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
- B22F5/106—Tube or ring forms
-
- 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
- B22F3/1017—Multiple heating or additional steps
- B22F3/1021—Removal of binder or filler
- B22F3/1025—Removal of binder or filler not by heating 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
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
- B22F3/162—Machining, working after consolidation
-
- 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
- B22F3/16—Both compacting and sintering in successive or repeated steps
- B22F3/164—Partial deformation or calibration
-
- 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
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- B22F3/16—Both compacting and sintering in successive or repeated steps
- B22F3/164—Partial deformation or calibration
- B22F2003/166—Surface calibration, blasting, burnishing, sizing, coining
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The application relates to the technical field of communication element manufacturing, in particular to a machining process of a circulator shell, which adopts the following technical scheme: step S1: selecting materials, namely selecting raw materials; step S2: injecting and molding a shell injection blank; step S3: placing the shell injection blank on a sintering support plate for sintering; step S4: sintering, namely sintering and molding the shell injection blank; step S5: shaping, namely shaping the profile of the injection blank of the shell; step S6: turning, namely machining threads on the shell injection blank; step S7: and (4) forming the cover plate, stamping the cover plate and machining threads. This application has the thread between casing and the apron and inlays each other together, avoids the thread interlock less each other, leads to the cusp to rub each other and cut out wire or burr when the equipment, reduces the effect of short circuit and the possibility of striking sparks.
Description
Technical Field
The application relates to the technical field of communication element manufacturing, in particular to a machining process of a circulator shell.
Background
The circulator is also called an isolator, is an important component applied to the communication industry, and is a multi-port device which transmits incident waves entering any port of the circulator into the next port according to the direction sequence determined by the static bias magnetic field, and one end of the circulator is connected with a load to form the isolator.
Most of the existing circulators and isolators comprise a cylindrical shell and a cover plate, the cylindrical shell and the cover plate are packaged by threads, the friction force generated during thread locking can cause burrs or metal wires, and when the circulators or the isolators work, short circuit or ignition is easily caused, so that devices are damaged or potential safety hazards are brought. The current solution in the industry is that the phenomena such as sparking and the like cannot occur through manual visual inspection by a ccd camera and verification by a voltage resistance test.
The method for avoiding the burr after packaging disclosed at present mainly changes the shell structure, but the innovative shell structure is to be verified in batch production and application, and besides, the processing technology is changed, along with the development of the communication technology, the design of the communication device tends to be more and more miniaturized, and the stamping technology gradually becomes the mainstream.
In view of the above-mentioned related technologies, the inventor believes that miniaturization and emerging processing technologies are not yet mature and are not introduced in batch, requirements of metal powder injection molding, machining and the like in the conventional processing modes and components used in 3G, 4G and other application scenarios still exist for a period of time, and the problem of burrs after packaging of the shell manufactured by the conventional process is still a prominent contradiction of labor cost consumption, and needs to be solved urgently.
Disclosure of Invention
In order to reduce the problem of burr generation after the encapsulation in the production process of the traditional process and save labor cost, the application provides a machining process of a circulator shell.
The application provides a processing technology of circulator casing adopts following technical scheme:
step S1: selecting materials, namely selecting raw materials;
step S2: injecting and molding a shell injection blank;
step S3: placing the shell injection blank on a sintering support plate for sintering;
step S4: sintering, namely sintering and molding the shell injection blank;
step S5: shaping, namely shaping the profile of the injection blank of the shell;
step S6: turning, namely machining threads on the shell injection blank;
step S7: and (4) forming the cover plate, stamping the cover plate and machining threads.
By adopting the technical scheme, the raw materials with proper component proportion are selected according to the physical property table of the raw materials, then the materials are placed on an injection machine to form a qualified shell injection blank, the formed shell injection blank is placed on a sintering support plate to be sintered, on one hand, impurities on the outer surface of the shell injection blank are removed, on the other hand, the material lattice of the shell injection blank is changed, the raw materials are fused more uniformly, further, the sintered shell injection blank is subjected to external contour correction optimization treatment by adopting a shaping mold, internal threads are lathed in the inner cavity of the formed shell on the basis of the 6G standard after the treatment is finished, finally, a cover plate is stamped on the plate, external threads are machined on the outer edge of the cover plate by lathing, the finished cover plate and shell threads are assembled in a combined mode, and when a user encapsulates the shell and the cover plate, the threads of the shell and the cover plate can be ensured to be inlaid together, the screw teeth are prevented from being less occluded with each other, so that metal wires or burrs are cut by friction of the tooth tips during assembly, the CCD inspection efficiency is improved, the cost is reduced, and the possibility of short circuit and sparking is reduced.
Alternatively, in step S2, a case injection blank of the case is molded using a horizontal injection machine and a dedicated injection mold; in the injection process, the pressure is 65MPa, the speed is 50m/s, the time is 1.0s, and the mold temperature is 105 ℃.
By adopting the technical scheme, the injection is used, the injection pressure is controlled to be 65Mpa, the injection speed is controlled to be 50m/s, the injection time is 1s, the temperature of the raw material is controlled to be 205 ℃, and the mold temperature is controlled to be 105 ℃, so that a shell injection blank which is burr-free and high in quality can be more easily molded.
Alternatively, in step S2, after the case injection blank is molded, trimming is performed to remove the remaining gate of the case injection blank and the flash of the mold clamping line.
By adopting the technical scheme, the residual sprue of the injection blank of the shell and the larger flash of the joint line are manually removed by using the utility knife, so that the burrs of the product are reduced.
Optionally, after trimming, performing sand blasting treatment to remove the flash of the fine joint line of the shell injection blank, wherein the sand blasting pressure is 0.15Mpa, and the time is 60 s.
By adopting the technical scheme, the sand blasting machine is used in the sand blasting process, the sand blasting pressure is controlled to be 0.15Mpa, and the sand blasting time is 60 seconds, so that the tiny die closing flash of the shell injection blank is removed.
Optionally, in step S4, the sintered compact is degreased in advance, the adhesive in the shell injection compact is removed, and the temperature is raised to 1250 ℃ during the sintering process, and the temperature is maintained for 2 hours.
By adopting the technical scheme, the automatic catalytic degreasing furnace is used for heating at 130 ℃ in the nitric acid atmosphere, acid is introduced for 2 hours, so that most of the adhesive in the shell injection blank is removed, only the skeleton part is kept to maintain the shape of the product, the weight loss rate of the product after catalysis reaches 7% -8%, the vacuum furnace is used for sintering in the sintering process, the residual adhesive is completely removed, the product is shrunk, and the more compact metal part is obtained.
Optionally, in step S5, before the shaping process, the shell injection blank is subjected to an oil immersion process for 5 minutes in advance.
By adopting the technical scheme, the molded shell injection blank is soaked in the anti-rust oil for 5 minutes and then removed and drained, so that the molded shell injection blank is prevented from rusting quickly.
Optionally, in the step S5, in the shaping process, the roundness of the shell is corrected by using a shaping die, the shaping pressure is 8Mpa, and the pressure holding time is 1.5S.
By adopting the technical scheme, the main body of the product at the sintering position is known to be prone to elliptical deformation, a 25T four-column hydraulic machine and a special shaping die are used for correcting and optimizing the cylindrical cylinder of the shell, and finally the outer diameter of the shaped product meets the tolerance requirement of +/-0.05 mm and the roundness of the shaped product meets 0.08mm, otherwise, the shaping is continued.
Optionally, in step S6, after the turning is completed, the injection blank of the housing is electroplated.
By adopting the technical scheme, after the turning is finished, a layer of nickel coating is added on the surface of the part by adopting a rack plating process, so that the service life of the part is prolonged.
Optionally, in step S1, selecting the following components in percentage by weight,
C：0.4-0.6wt.%；
Si：1-1.0 wt.%；
Ni：1.5-2.5 wt.%；
Mo：0.2-0.5 wt.%；
the rest is: fe.
By adopting the technical scheme, the raw materials in the proportion are used, and after the shell injection blank is subjected to heat treatment, the yield strength and the tensile strength of the shell injection blank are increased, the elongation of the shell injection blank is reduced, and the hardness of the shell injection blank is enhanced.
The application comprises at least one of the following beneficial technical effects:
1. when a user encapsulates the shell and the cover plate, the threads of the shell and the cover plate can be embedded together, so that the situation that the threads are less occluded with each other and the tips of the threads rub with each other to cut metal wires or burrs during assembly is avoided, the CCD inspection efficiency is improved, the cost is reduced, and the possibility of short circuit and ignition is reduced;
2. and (3) completely removing the adhesive remained on the shell by a degreasing process and sintering in a vacuum furnace, so that the product shrinks, and a more compact metal part is obtained.
Drawings
FIG. 1 is a schematic view of the processing flow of this embodiment.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses a machining process of a circulator shell.
Referring to fig. 1, a process for manufacturing a circulator casing includes the following steps,
step S1: according to a physical property table of materials, selecting the materials with the weight percentage of C: 0.4-0.6 wt.%;
si: 1-1.0 wt.%; ni: 1.5-2.5 wt.%; mo: 0.2-0.5 wt.%; the rest is: fe, as a raw material;
step S2: after the raw materials are selected, a shell injection blank is formed by using a Haitian horizontal injection machine (MA 900 II/260) and a special injection mould, wherein in the injection process: the injection pressure is 65Mpa, the injection speed is 50m/S, the injection time is 1.0S, the material temperature of the raw material is heated to 205 ℃, the mold temperature is controlled to be 105 ℃, and the injection mode is used for easily molding a shell injection blank without burrs and with high quality;
after the injection molding is finished, trimming, and manually removing residual gates and large joint line flashes of the injection blank by using an art designer;
after trimming, carrying out sand blasting treatment, using a Hongfeng/sand blasting machine GF1080A-15 to remove the tiny joint line flash of the injection blank, controlling the sand blasting pressure at 0.15MPa and the sand blasting time at 60 seconds, thereby further removing the burrs;
step S3: placing the injection blank on a sintering support plate for degreasing and sintering;
step S4: sintering, wherein before sintering of a shell injection blank, a starred scintillation/automatic catalytic degreasing furnace STZ-300L-G device is used for heating to 130 ℃ in a nitric acid atmosphere in advance, acid is introduced for 2 hours, most of the adhesive in the injection blank is removed, only a skeleton part is kept to maintain the shape of the product, the weight loss rate of the product after catalysis reaches 7.0-8.0 percent, and the product is used as a pre-treatment process of sintering to avoid bulge and explosion defects caused by untimely decomposition and discharge due to overlarge adhesive content in the product in the sintering temperature rise process;
sintering after degreasing, wherein in the sintering process, a Hempse vacuum furnace 48/48/200 is used for heating to 1250 ℃ under the condition of vacuumizing, the temperature is kept for 2 hours, and residual adhesives are completely removed to shrink the product, so that a compact metal part is obtained;
step S5: shaping, wherein before shaping, the whole injection blank shell is subjected to oil immersion treatment in advance, and the product is immersed in anti-rust oil (IRON EAGLE WDS-001 (IP) -200L/barrel) for 5 minutes to be removed and drained, so that the formed part is prevented from being rapidly rusted, and the production quality of the product is improved;
after draining, carrying out shaping treatment, wherein a sintered product main body is easy to have elliptical deformation, so that a 25T four-column hydraulic machine and a special shaping die are needed to correct and optimize a cylindrical cylinder of a shell, in the shaping process, the shaping pressure is controlled at 8MPa, the pressure maintaining time is controlled at 1-2 seconds, the outer diameter of the shaped product needs to meet the tolerance requirement of +/-0.05 mm, the roundness meets 0.08mm, and if the outer diameter does not meet the tolerance requirement, carrying out shaping treatment again until the outer diameter meets the requirement of the shell;
step S6: turning, using a lathe and a special fixture to process threads according to M9.5X0.5-6G standard after finishing shaping, taking a shell structure with the thread requirement of M9.5X0.5-6H as an example, designing an inner cavity diameter mold of a shell injection blank according to 9.10-9.12mm after shrinkage, and increasing the major diameter of the threads by 0.006-0.01mm on the basis of 6G standard by a turning process;
step S7: the cover plate is formed, the cover plate is firstly stamped by a plate, then external thread features are machined on the outer edge of the cover plate, the machining process of the cover plate is conducted according to the standard of M9.5X0.5-6g, the cover plate is machined and then subjected to vibration grinding, in the vibration grinding process, 4X 4mm cylindrical grinding materials and 10X 4mm triangular grinding materials are mixed in the ratio of 1:2-3, and the grinding materials are: the volume ratio of the materials is =3-5:1, 3-5% of grinding fluid is added at the same time, and the grinding time is 50-70min, so that the external thread tooth tips of the cover plate are round and blunt, the cover plate and the inner cavity of the shell are convenient to be mutually occluded, burrs are difficult to generate due to occlusion in the assembling process, and the possibility of short circuit and sparking is reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The machining process of the circulator shell is characterized in that: comprises the following steps of (a) carrying out,
step S1: selecting materials, namely selecting raw materials;
step S2: injecting and molding a shell injection blank;
step S3: placing the shell injection blank on a sintering support plate for sintering;
step S4: sintering, namely sintering and molding the shell injection blank;
step S5: shaping, namely shaping the profile of the injection blank of the shell;
step S6: turning, namely machining threads on the shell injection blank;
step S7: and (4) forming the cover plate, stamping the cover plate and machining threads.
2. The process of claim 1, wherein the step of machining the circulator casing comprises the following steps: in step S2, a case injection blank of the case is molded using a horizontal injection machine and a dedicated injection mold; in the injection process, the pressure is 65MPa, the speed is 50m/s, the time is 1.0s, and the mold temperature is 105 ℃.
3. The process of claim 1, wherein the step of machining the circulator casing comprises the following steps: in step S2, after the case injection blank is molded, trimming is performed to remove the remaining gate of the case injection blank and the flash of the mold clamping line.
4. The process of claim 3, wherein: and after trimming, carrying out sand blasting treatment to remove the flash of the fine joint line of the shell injection blank, wherein the sand blasting pressure is 0.15Mpa and the time is 60 s.
5. The process of claim 1, wherein the step of machining the circulator casing comprises the following steps: in step S4, the sintered compact is degreased in advance, the binder in the case injection compact is removed, and the temperature is raised to 1250 ℃ during sintering and kept for 2 hours.
6. The process of claim 1, wherein the step of machining the circulator casing comprises the following steps: in step S5, before the shaping process, the case injection molded product is preliminarily subjected to an oil immersion process for 5 minutes.
7. The process of claim 1, wherein the step of machining the circulator casing comprises the following steps: in the step S5, in the shaping process, the roundness of the shell is corrected using a shaping die at a shaping pressure of 8Mpa and a dwell time of 1.5S.
8. The process of claim 1, wherein the step of machining the circulator casing comprises the following steps: in step S6, after the turning is completed, the injection blank of the case is subjected to plating treatment.
9. The process of claim 1, wherein the step of machining the circulator casing comprises the following steps: in step S1, the compositions of the raw materials in percentage by weight are selected as follows,
C：0.4-0.6wt.%；
Si：1-1.0 wt.%；
Ni：1.5-2.5 wt.%；
Mo：0.2-0.5 wt.%；
the rest is: fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110840402.2A CN113649577A (en) | 2021-07-24 | 2021-07-24 | Machining process of circulator shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110840402.2A CN113649577A (en) | 2021-07-24 | 2021-07-24 | Machining process of circulator shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113649577A true CN113649577A (en) | 2021-11-16 |
Family
ID=78490091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110840402.2A Pending CN113649577A (en) | 2021-07-24 | 2021-07-24 | Machining process of circulator shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113649577A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03262201A (en) * | 1990-03-12 | 1991-11-21 | Murata Mfg Co Ltd | Irreversible circuit element |
| CN101433961A (en) * | 2007-11-13 | 2009-05-20 | 上海富驰高科技有限公司 | Method for producing microwave isolator/circulator cavity |
| CN102240808A (en) * | 2011-07-12 | 2011-11-16 | 中南大学 | Preparation method of small complex magnetic shielding parts |
| CN109014212A (en) * | 2018-08-15 | 2018-12-18 | 上海精科粉末冶金科技有限公司 | A kind of processing method of metal injection molding technology production 5G communication isolator |
| CN109687075A (en) * | 2019-01-29 | 2019-04-26 | 上海富驰高科技股份有限公司 | A kind of isolator shell, using isolator of the shell and preparation method thereof |
| CN110000390A (en) * | 2019-05-06 | 2019-07-12 | 上海精科粉末冶金科技有限公司 | A kind of powder metallurgy processing technology communicating isolator shell |
| CN209730121U (en) * | 2019-05-17 | 2019-12-03 | 深圳市诺信博通讯有限公司 | A kind of SMD riveting lid circulator using MIM technology |
| CN111370828A (en) * | 2020-04-14 | 2020-07-03 | 苏州威洁通讯科技有限公司 | Packaging structure of combined isolator and circulator |
| CN111774570A (en) * | 2020-07-15 | 2020-10-16 | 深圳市泛海统联精密制造股份有限公司 | Powder material for metal injection molding and processing method |
-
2021
- 2021-07-24 CN CN202110840402.2A patent/CN113649577A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03262201A (en) * | 1990-03-12 | 1991-11-21 | Murata Mfg Co Ltd | Irreversible circuit element |
| CN101433961A (en) * | 2007-11-13 | 2009-05-20 | 上海富驰高科技有限公司 | Method for producing microwave isolator/circulator cavity |
| CN102240808A (en) * | 2011-07-12 | 2011-11-16 | 中南大学 | Preparation method of small complex magnetic shielding parts |
| CN109014212A (en) * | 2018-08-15 | 2018-12-18 | 上海精科粉末冶金科技有限公司 | A kind of processing method of metal injection molding technology production 5G communication isolator |
| CN109687075A (en) * | 2019-01-29 | 2019-04-26 | 上海富驰高科技股份有限公司 | A kind of isolator shell, using isolator of the shell and preparation method thereof |
| CN110000390A (en) * | 2019-05-06 | 2019-07-12 | 上海精科粉末冶金科技有限公司 | A kind of powder metallurgy processing technology communicating isolator shell |
| CN209730121U (en) * | 2019-05-17 | 2019-12-03 | 深圳市诺信博通讯有限公司 | A kind of SMD riveting lid circulator using MIM technology |
| CN111370828A (en) * | 2020-04-14 | 2020-07-03 | 苏州威洁通讯科技有限公司 | Packaging structure of combined isolator and circulator |
| CN111774570A (en) * | 2020-07-15 | 2020-10-16 | 深圳市泛海统联精密制造股份有限公司 | Powder material for metal injection molding and processing method |
Non-Patent Citations (3)
| Title |
|---|
| 于文强等: "《工程材料与热成形技术》", 31 August 2020, 机械工业出版社 * |
| 徐志农等: "《工程材料及其应用》", 31 March 2019, 华中科技大学出版社 * |
| 穆阿姆梅尔﹒科驰等: "《钢结硬质合金的制备原理与技术》", 31 January 2017, 湖南科学技术出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8418366B2 (en) | Internal gear manufacturing method and metallic glass internal gear manufactured thereby | |
| US20160243609A1 (en) | Quasi self-destructive core for investment casting | |
| CN105014080B (en) | The design and production method of powder injection forming piston ring | |
| CN103691888A (en) | Method for manufacturing composite core shaping irregular pore | |
| CN203198052U (en) | One-step isostatic pressing forming die for stepped inner wall of alumina ceramic tube | |
| CN113649577A (en) | Machining process of circulator shell | |
| CN111283923B (en) | Method for shaping and processing plastic cement tooth-direction drum-shaped gear | |
| CN104014737A (en) | Preparation technology for complex ceramic core with embedded cavity structure | |
| CN111663062A (en) | Method for preparing Cu-Cr-Mg-Zr-Ce high-performance end ring by using hot isostatic pressing near-net shape | |
| CN104174848A (en) | Powder hot isostatic pressing molding method of titanium alloy automobile connecting shaft rod | |
| CN1491761A (en) | Method for preparing Kovar alloy electronic package box | |
| US3656731A (en) | Tungsten-nickel-iron-molybdenum die casting shaping members | |
| CN1192867C (en) | Injection part for adhering and pressing magnetic body and injection technology | |
| CN209189745U (en) | A kind of combination type core | |
| CN113272088A (en) | Method for producing sintered body | |
| CN111036847A (en) | Method for preventing core deviation of directional blade of heavy gas turbine | |
| CN102615474B (en) | Manufacturing method for compressor screw rotor | |
| JPS6021306A (en) | Manufacture of composite reinforced member | |
| WO2021104526A3 (en) | Integrally formed inductor and manufacturing method therefor | |
| JPS60118350A (en) | Method for forming cavity in high-pressure casting | |
| CN101644264B (en) | Method for manufacturing air compressor moving plate | |
| KR101984802B1 (en) | Ring-shaped structure for enhancing strength of pipe used in die casting | |
| KR100655267B1 (en) | Method for manufacturing a sintered metal with inner path | |
| CN212169243U (en) | Hydraulic gear grinding clamp | |
| WO2019137969A1 (en) | Casting device and method for using same |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211116 |