CN204818060U - Design exhaust frock - Google Patents
Design exhaust frock Download PDFInfo
- Publication number
- CN204818060U CN204818060U CN201520468443.3U CN201520468443U CN204818060U CN 204818060 U CN204818060 U CN 204818060U CN 201520468443 U CN201520468443 U CN 201520468443U CN 204818060 U CN204818060 U CN 204818060U
- Authority
- CN
- China
- Prior art keywords
- exhaust
- blank
- conducting structure
- tooling
- shape
- 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.)
- Active
Links
Abstract
The utility model aims to solve the technical problem that a design exhaust frock that the difficult production of the effectual blank of exhaust is deformed is provided. For realizing above -mentioned purpose, this design exhaust frock is including the exhaust conducting structure, the exhaust conducting structure includes the cavity structure, this cavity structure and external intercommunication, and the conducting structure surface of exhausting simultaneously is equipped with the through -hole of intercommunication cavity structure, the cavity structure is the exhaust chamber, and the through -hole is the exhaust hole, the outer wall profile of the conducting structure that should exhaust and the adaptation of the inner chamber profile phase of blank, it is filled with the sand burning to spread between exhaust conducting structure and blank.
Description
Technical field
The utility model relates to a kind of sizing exhaust tooling.
Background technology
Powder metallurgy is a kind of near-purification formation of parts manufacturing technology of efficient, high-quality, precision, low-loss and energy-saving, but PM technique needs to add adhesive when finished parts geometric shape, thus in compressing process, improve the mobility of powder, simultaneously make again powder have higher viscosity, now make pressing pressure obtain in the powder more effectively and evenly transmission.Add adhesive and can improve the mobility of mixed-powder, fillibility and mouldability well, powder can evenly flow to each corner and not crack in pressing process, thus can make the geometric shape of high complexity.In powder sintered shaping process, at high temperature, decomposing or gasification can appear in adhesive from blank, thus makes part occur the phenomenons such as pore, cracking, finished product density skewness, so need to be exhausted degreasing to blank before blank sintering.
At present, blank is being exhausted and in sintering technology, is generally finding that distortion in various degree often appears in blank in high temperature environments, and then occur defect ware; If extension supporting structure on blank, then finding again can because being vented the phenomenons such as poor appearance pore in various degree, cracking, density unevenness on the wall that blank contacts with supporting construction, special in blank has inner-cavity structure, be vented the poor problem caused just more serious.
Utility model content
Technical problem to be solved in the utility model is to provide the sizing exhaust tooling that a kind of good exhaust effect blank not easily produces deformation.
For achieving the above object, this sizing exhaust tooling comprises exhaust conducting structure; Exhaust conducting structure comprises cavity structure, this cavity structure is in communication with the outside, be vented conducting structure surface simultaneously and be provided with the through hole being communicated with cavity structure, described cavity structure is discharge chamber, through hole is steam vent, the outer wall profile of this exhaust conducting structure and the inner chamber profile of blank adapt, and spread and be filled with sand burning between described exhaust conducting structure and blank.Pass through said apparatus, can realize blank sizing bleeding, and can guarantee that blank has exhaust effect of shaping preferably: be in communication with the outside exhaust conducting structure is provided with discharge chamber, be provided with steam vent on exhaust conducting structure surface to be communicated with discharge chamber, exhaust conducting structure being navigated to its outer wall profile and blank inner chamber profile adapts behind position, spreads and fill out sand burning between exhaust conducting structure and blank; Described exhaust conducting structure outer wall profile and blank inner chamber profile adapt for: the vertical range being vented any distance closest approach between conducting structure outer wall profile and blank inner chamber profile is equal to each other.Then now, because exhaust conducting structure outer wall profile and blank inner chamber profile adapt, so in the process of heating, only need the gas that then can realize the discharge of blank inner chamber by controlling suitable temperature to enter discharge chamber from the steam vent exhaust conducting structure, and then discharge from discharge chamber; Simultaneously in the process of exhaust, the gas that blank outer wall produces can directly be discharged; After this external paving fills out sand burning, the hole between sand seam and aperture are comparatively large for gas, and gas still can be discharged by sand slot apertures gap; And sand burning paving is filled out between exhaust conducting structure and blank, because exhaust conducting structure outer wall profile and blank inner chamber profile adapt, sand burning can form uniform sand body structure between exhaust conducting structure and blank, thus the sand burning that paving is filled out between exhaust conducting structure and blank can provide uniform holding power to blank, and then guarantee that blank there will not be in the process of sizing exhaust and add thermal deformation and affect quality, be achieved and in the process of exhaust, blank shaped.In above-mentioned frock, can realize blank sizing bleeding, and can guarantee that blank has good exhaust effect, inwall exhaust effect particularly for blank has great improvement, at the same time, can realize effectively supporting the structure of blank and preventing its heat distortion, thus realize shaping preferably exhaust.
Further, the opening that discharge chamber is in communication with the outside is opened in exhaust conducting structure upper end.The opening be in communication with the outside by discharge chamber is located at the upper end of exhaust conducting structure, thus in a heated state, the gas that blank inner chamber is discharged is easy to utilize the variable density under heating condition to enter to produce lift and discharges exhaust conducting structure from the opening of top, accelerate exhaust velocity, thus the dynamic equilibrium in promotion exhaust conducting structure is to being conducive to gas discharge direction to be carried out.
Further, the percent opening on described exhaust conducting structure is 40-80%, and steam vent is that some apertures are consistent, uniform through hole of arranging is distributed in exhaust conducting structure surface; This steam vent aperture is 0.1-1 millimeter.Steam vent on exhaust conducting structure is set to arrangement evenly, aperture is consistent, quantity is some, thus guarantees that each position of blank inner chamber both can have the exhaust efficiency of relatively uniformization in sizing exhaust process; Steam vent aperture is 0.1-1 millimeter, and the percent opening on exhaust conducting structure is 40-80%, now, only needs to adopt the sand burning of suitable particle size namely can guarantee to have good exhaust efficiency between discharge chamber and blank and now the paving of sand burning is filled out respond well.
Further, described sand burning adopts Al
2o
3or SiO
2particle, this sand burning granularity is 65 order to 10 orders.Sand burning selects Al
2o
3or SiO
2particle is due to Al
2o
3or SiO
2the particle made can meet the ventilation requirement of sintering process preferably, and there is excellent heat conductivility, thus realize each position of blank and be heated evenly, and the support that can complete preferably blank and sizing, to guarantee that in sintering process blank there will not be and add thermal deformation; Be 65 order to 10 orders by the Task-size Controlling of this sand burning be a parameter value comparatively optimized for the exhaust of sand burning, stressed sizing simultaneously.
Further, the radial vertical range between blank and exhaust conducting structure is 3-5 millimeter.Thus guarantee that blank inner chamber can keep enough fully closing on and contacts with exhaust conducting structure, and then guarantee blank and be vented between conducting structure have enough good exhaust efficiency; Blank each position exhaust efficiency can be made relatively uniform simultaneously, avoid occurring partial exhaust gas difference on effect and causing defect ware.
Further, described frock is provided with positioner.Thus realize blank and locate be loaded into preposition with exhaust conducting structure.
In above-mentioned frock, can guarantee that blank has exhaust effect of shaping preferably, special reply inner chamber has the sizing of larger degree of depth blank to be vented, there is obviously advantage, can realize blank sizing bleeding, and can guarantee that blank has good exhaust effect, now largely can improve the inwall exhaust effect of blank, at the same time, can realize effectively supporting the structure of blank and preventing its heat distortion.
Accompanying drawing explanation
Fig. 1 is that a kind of sizing exhaust tooling partly cuts open figure.
Fig. 2 is the top view of frock in Fig. 1.
Detailed description of the invention
A kind of frock implementing sizing method for exhausting as shown in Figure 1 and Figure 2, uses it in a kind of chimney filter blank sizing degreasing exhaust production of powder metallurgy pressing.
This frock is for comprising exhaust conducting structure 1; Wherein being vented conducting structure 1 is tubular structure; Described blank 4 is chimney filter blank, and this chimney filter blank is tubular structure.
Described exhaust conducting structure 1 caliber is slightly less than chimney filter blank caliber, and this exhaust conducting structure 1 is made for high temperature resistant rigid material, and the material being vented conducting structure 1 in the present embodiment adopts stainless steel; This exhaust conducting structure 1 comprises discharge chamber 2 and steam vent 3; Described discharge chamber 2 is the cavity structure of exhaust conducting structure 1, steam vent 3 is that some arrangements that exhaust conducting structure 1 surface is offered are even, the consistent through hole in aperture, described through hole runs through exhaust conducting structure 1 and is communicated with described cavity structure, and namely steam vent 3 is communicated with discharge chamber 2; Meanwhile, steam vent 3 aperture on exhaust conducting structure 1 is 0.8 millimeter, and the percent opening on exhaust conducting structure 1 is 70%.In the frock of above-described embodiment, at exhaust conducting structure 1 near the outer wall of bottom position, arrange positioner 5, this positioner 5 is for being looped around the annular sheet on exhaust conducting structure 1 outer wall, and this annular sheet is that level is installed.
In the frock of the present embodiment, blank 4 is placed on positioner 5, be set in outside exhaust conducting structure 1 by chimney filter blank, above-mentioned exhaust conducting structure 1 caliber is slightly less than chimney filter blank, in the present embodiment specifically, vertical range between the outer wall of exhaust conducting structure 1 and blank 4 inwall controlled to be 4 millimeters, now, exhaust conducting structure 1 is through chimney filter blank inner chamber; Again by 12 object SiO
2sand burning uniform spreading is filled between exhaust conducting structure 1 and chimney filter blank, frock is inserted design temperature and heats, and after chimney filter blank exhaust sintering completes, cooling is taken out.
The frock of the sizing method for exhausting in the present embodiment and enforcement the method, except being applied in the chimney filter blank sizing degreasing exhaust production of above-mentioned powder metallurgy pressing, during the blank 4 sizing exhaust of also making can be applicable to other powder metallurgy is produced, and can be used in blank 4 sizing exhaust production.Only need to arrange exhaust conducting structure 1 outer wall profile to adapt with blank 4 inner chamber profile, and exhaust conducting structure 1 is provided with discharge chamber 2 and steam vent 3; Implement in production in reality, according to the shape and size of blank 4, the shape profile of exhaust conducting structure 1 and the radial vertical range between blank 4 and exhaust conducting structure 1 are set, in actual production, consider that each position of blank 4 is evenly vented, be then adapt the outer wall profile design of discharge chamber 2 with the inner chamber profile of blank 4 as far as possible, thus can be implemented in the exhaust efficiency that in heating process, blank 4 has had, simultaneously after filling sand burning, while being exhausted, also can preventing blank 4 from deformation occurring, completing sizing exhaust.This kind of sizing exhaust tooling tackles inner chamber especially has the blank 4 of the larger degree of depth to shape exhaust process, there is obviously advantage, can realize shaping bleeding to blank 4, and can guarantee that blank 4 has good exhaust effect, inwall particularly for blank 4 has good exhaust effect, at the same time, can realize effectively supporting the structure of blank 4 and preventing its heat distortion.
Claims (7)
1. sizing exhaust tooling, comprise exhaust conducting structure (1), it is characterized in that: exhaust conducting structure (1) comprises cavity structure, this cavity structure is in communication with the outside, be vented conducting structure (1) surface simultaneously and be provided with the through hole being communicated with cavity structure, described cavity structure is discharge chamber (2), through hole is steam vent (3), the outer wall profile of this exhaust conducting structure (1) and the inner chamber profile of blank (4) adapt, and spread and be filled with sand burning between described exhaust conducting structure (1) and blank (4).
2. to shape as claimed in claim 1 exhaust tooling, it is characterized in that: the opening that discharge chamber (2) is in communication with the outside is opened in exhaust conducting structure (1) upper end.
3. to shape as claimed in claim 1 exhaust tooling, it is characterized in that: the percent opening on described exhaust conducting structure (1) is 40-80%, steam vent (3) is for some apertures are consistent, uniform through hole of arranging is distributed in exhaust conducting structure (1) surface.
4. to shape as claimed in claim 3 exhaust tooling, it is characterized in that: described steam vent (3) aperture is 0.1-1 millimeter.
5. to shape as claimed in claim 1 exhaust tooling, it is characterized in that: described sand burning adopts Al
2o
3or SiO
2particle, this sand burning granularity is 65 order to 10 orders.
6. to shape as claimed in claim 1 exhaust tooling, it is characterized in that: the radial vertical range between blank (4) and exhaust conducting structure (1) is 3-5 millimeter.
7. to shape as claimed in claim 1 exhaust tooling, it is characterized in that: described frock is provided with positioner (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468443.3U CN204818060U (en) | 2015-06-30 | 2015-06-30 | Design exhaust frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468443.3U CN204818060U (en) | 2015-06-30 | 2015-06-30 | Design exhaust frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204818060U true CN204818060U (en) | 2015-12-02 |
Family
ID=54675702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520468443.3U Active CN204818060U (en) | 2015-06-30 | 2015-06-30 | Design exhaust frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204818060U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972116A (en) * | 2015-06-30 | 2015-10-14 | 成都易态科技有限公司 | Shaping exhausting method and tool for carrying out the same |
| CN106042154A (en) * | 2016-06-12 | 2016-10-26 | 南昌航空大学 | Method for constructing air duct in plaster mold |
-
2015
- 2015-06-30 CN CN201520468443.3U patent/CN204818060U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972116A (en) * | 2015-06-30 | 2015-10-14 | 成都易态科技有限公司 | Shaping exhausting method and tool for carrying out the same |
| CN106042154A (en) * | 2016-06-12 | 2016-10-26 | 南昌航空大学 | Method for constructing air duct in plaster mold |
| CN106042154B (en) * | 2016-06-12 | 2018-05-29 | 南昌航空大学 | A kind of method that air passage is constructed in gypsum mold |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109608206B (en) | Heating element with heating net embedded on porous ceramic surface and preparation method thereof | |
| CN102335747B (en) | Preparation method for aluminum silicon carbide compound material IGBT (Insulated Gate Bipolar Translator) substrate and method for inlaying aluminum alloy | |
| CN208146917U (en) | A kind of metal 3D printing powder preheating device | |
| CN204818060U (en) | Design exhaust frock | |
| CN104707931A (en) | Manufacturing method for large high-temperature alloy disk-type die forging parts | |
| CN103111619A (en) | Hot isostatic pressing two-step forming method of high temperature alloy compact piece | |
| CN107588672A (en) | A kind of equalizing plate structure and its manufacture method | |
| CN111421109A (en) | Casting method for preparing sand mold shell based on 3D printing | |
| CN109351970A (en) | A kind of capillary structure 3D printing manufacturing method | |
| CN112436250B (en) | Port coupling structure of microwave dielectric waveguide filter | |
| CN105132732A (en) | Preparation method for foamed aluminum with adjustable pore structure | |
| CN101671111B (en) | Method for drilling vacuum glass | |
| CN204818065U (en) | Exhaust sintering integration frock | |
| CN101554287A (en) | Process technology of boiler for induction cooker | |
| CN104972116A (en) | Shaping exhausting method and tool for carrying out the same | |
| CN106735191B (en) | A method of preparing Powder High-speed Steels | |
| CN205324725U (en) | Forming die of bipyramid synchronizer ring frictional layer | |
| CN104959607A (en) | Exhausting and sintering integration method and tool for implementing same | |
| CN105852650A (en) | Magnetism-conducting ceramic liner and preparation thereof | |
| CN104942285B (en) | The forming method and mould of compound filter core between honeycomb metal | |
| CN102135384A (en) | Structure of isothermal board and method for manufacturing isothermal board | |
| CN216266655U (en) | Forming die of super large-size ceramic green body | |
| CN206999537U (en) | A kind of block ventilation body embedding die of assembled arrangement formula | |
| CN205957694U (en) | Vacuum sintering furnace | |
| CN205258576U (en) | Adopt fuse -element foaming technology to make device of tombarthite high strength foamed aluminium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |