CN204818065U - Exhaust sintering integration frock - Google Patents
Exhaust sintering integration frock Download PDFInfo
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- CN204818065U CN204818065U CN201520468457.5U CN201520468457U CN204818065U CN 204818065 U CN204818065 U CN 204818065U CN 201520468457 U CN201520468457 U CN 201520468457U CN 204818065 U CN204818065 U CN 204818065U
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- Prior art keywords
- exhaust
- sintering
- blank
- conducting structure
- boat
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Abstract
The utility model aims to solve the technical problem that an exhaust sintering integration frock is provided, can realize the exhaust sintering integration operation of blank, the sintering that just exhausts is effectual. For realizing the purposes, the utility model provides an exhaust sintering integration frock includes sintering boat, exhaust conducting structure, be equipped with the gas vent on the sintering boat, the exhaust conducting structure is installed in the sintering boat, 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, sintering boat middle berth is filled with the sand burning.
Description
Technical field
The utility model relates to the sintering integrated chemical industry dress of a kind of exhaust.
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 to be exhausted and in sintering technology, exhaust and sintering are divided into two frock division step to carry out by first more using, secondly, in existing exhaust and sintering technology, generally find 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 sintering integrated chemical industry dress of a kind of exhaust, can realize the exhaust sintering integratedization operation of blank, and exhaust sintering effect is good.
For achieving the above object, the sintering integrated chemical industry dress of the exhaust that the utility model provides comprises sintering boat, exhaust conducting structure, and described sintering boat is provided with exhaust outlet; Exhaust conducting structure is installed in sintering boat, described 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, and the outer wall profile of this exhaust conducting structure and the inner chamber profile of blank adapt, and described sintering boat middle berth is filled with sand burning.Pass through said apparatus, can realize the operation of blank exhaust sintering integratedization, and can guarantee that blank has exhaust sintering integratedization effect and the sizing of realization to blank preferably: blank is placed in sintering boat and sinters, in sintering boat, be equipped with exhaust conducting structure outer wall profile and blank inner chamber profile adapt, 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.On exhaust conducting structure, be provided with discharge chamber to be in communication with the outside simultaneously, 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, in sintering chamber, middle berth fills out sand burning, then now, because exhaust conducting structure outer wall profile and blank inner chamber profile adapt, so in the process of heat-agglomerating, the gas that then can realize the discharge of blank inner chamber by controlling suitable temperature is only needed to enter discharge chamber from the steam vent exhaust conducting structure, and then discharge sintering boat, heated the sintering of blank simultaneously, and in the process of exhaust sintering, the gas that blank outer wall produces can directly be discharged from the exhaust outlet sintering boat by sand burning, 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 exhaust sintering and add thermal deformation and affect quality.Above-mentioned frock can realize the operation of blank exhaust sintering integratedization, and can guarantee that blank has good exhaust effect, inwall particularly for blank has good exhaust effect, at the same time, can realize effectively supporting the structure of blank and preventing its heat distortion.
Further, described sintering boat comprises dismountable upper end cover, and described exhaust outlet is positioned at upper end cover, and discharge chamber is in communication with the outside through upper end cover.Thus can by dismountable upper end cover carry out easily blank place with take out, sand burning spreads operations such as filling out; Exhaust outlet is installed in sintering boat upper end cover simultaneously, thus in a heated state, the gas that blank is discharged is easy to utilize the variable density under heating condition to enter to produce lift and discharges sintering boat from the exhaust outlet of top, accelerate the exhaust velocity of sintering boat, thus the dynamic equilibrium in acceleration of sintering boat is to being conducive to gas discharge direction to be carried out.
Further, the percent opening on described exhaust conducting structure is 40-80%, 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 exhaust sintering 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 realize the operation of blank exhaust sintering integratedization, and can guarantee that blank has good exhaust effect, inwall particularly for blank has good exhaust effect, 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 sintering integrated chemical industry dress of exhaust of implementing partly cuts open figure.
Fig. 2 is that the A-A of frock in Fig. 1 is to sectional view.
Fig. 3 is the upper end cover schematic diagram of frock in Fig. 1.
Detailed description of the invention
One as shown in Figure 1, Figure 2 and Figure 3 implements the sintering integrated chemical industry dress of exhaust, uses it in a kind of degreasing sintered integration production of chimney filter blank of powder metallurgy pressing.
This frock is for comprising sintering boat 2, exhaust conducting structure 3; Wherein sintering boat 2 is cylindrical cavity structure, and blank 1 to be sintered is placed in cavity, and described blank 1 is chimney filter blank, and this chimney filter blank is tubular structure.
Sintering boat 2 upper end cover 202 is provided with exhaust outlet 201, in the present embodiment, as shown in Figure 3, exhaust outlet 201 comprises the first row gas port 2011 being positioned at sintering boat 2 upper end cover 202 center, also comprise that to be enclosed in first row gas port 2011 periphery be satellite around some second exhaust port 2012, described first row gas port 2011 aperture is slightly less than chimney filter blank caliber, second exhaust port 2012 is installed on upper end cover 202 and carries out auxiliary exhaust by peripheral position, in the present embodiment, second exhaust port 2012 is mainly used in the outer wall exhaust of blank 1; Sintering boat 2 upper end cover 202 is detachable.Exhaust conducting structure 3 is installed in sintering boat 2 for tubular structure, and be fixed on the center, lower surface of sintering boat 2, described exhaust conducting structure 3 caliber is slightly less than chimney filter blank caliber, this exhaust conducting structure 3 is made for high temperature resistant rigid material, and the material being vented conducting structure 3 in the present embodiment adopts stainless steel; This exhaust conducting structure 3 comprises discharge chamber 301 and steam vent 302; Described discharge chamber 301 is the cavity structure of exhaust conducting structure 3, steam vent 302 is that some arrangements that exhaust conducting structure 3 surface is offered are even, the consistent through hole in aperture, described through hole runs through exhaust conducting structure 3 and is communicated with described cavity structure, namely steam vent 302 is communicated with discharge chamber 301, and described discharge chamber 301 is communicated with sintering boat 2 upper end first row gas port 2011, and discharge chamber 301 and first row gas port 2011 are connected; Meanwhile, steam vent 302 aperture on exhaust conducting structure 3 is 0.8 millimeter, and porosity is 70%.In the frock of above-described embodiment, at exhaust conducting structure 3 near the outer wall of bottom position, arrange positioner 4, this positioner 4 is for being looped around the annular sheet on exhaust conducting structure 3 outer wall, and this annular sheet is that level is installed.
In the frock of the present embodiment, blank 1 is inserted in sintering boat 2, be set in outside exhaust conducting structure 3 by chimney filter blank, just exhaust conducting structure 3 can be placed on the positioner 4 of bottom position, above-mentioned exhaust conducting structure 3 caliber is slightly less than chimney filter blank, in the present embodiment specifically, the vertical range between the outer wall of exhaust conducting structure 3 and blank 1 inwall is controlled to be 4 millimeters, now, conducting structure 3 is vented through chimney filter blank inner chamber; Again by 12 object SiO
2sand burning uniform spreading is filled in sintering boat 2, and sand burning uniform spreading is filled up sintering boat 2 cavity.The upper end cover 202 of sintering boat 2 is filled on sintering boat 2, first row gas port 2011 is coordinated with discharge chamber 301, sintering boat 2 is inserted design temperature and heats, be vented after sintering completes until blank 1 and cool taking-up.
The sintering integrated chemical industry dress of exhaust in the present embodiment, except in the degreasing sintered integration production of the chimney filter blank that can be applied in above-mentioned powder metallurgy pressing, the blank 1 also made can be applicable to other powder metallurgy be vented sintering integratedization produce in, and can be used in blank 1 be vented sintering integratedization production in.Only need blank 1 to be placed in sintering boat 2, exhaust conducting structure 3 outer wall profile and blank 1 inner chamber profile are set and adapt, and exhaust conducting structure 3 is provided with discharge chamber 301 and steam vent 302, implement in production in reality, according to the shape and size of blank 1, the shape profile of exhaust conducting structure 3 and the radial vertical range between blank 1 and exhaust conducting structure 3 are set, in actual production, consider that each position of blank 1 is evenly vented, be then adapt the outer wall profile design of discharge chamber 301 with the inner chamber profile of blank 1 as far as possible, thus the exhaust efficiency that blank 1 has had in sintering process can be completed, simultaneously after filling sand burning, while being exhausted, also can prevent blank 1 from deformation occurring, complete exhaust sintering integratedization.This kind of sintering integrated chemical industry dress of exhaust special reply inner chamber has the blank 1 of the larger degree of depth to be vented sintering integratedization process, there is obviously advantage, can realize being vented sintering integratedization operation to blank 1, and can guarantee that blank 1 has good exhaust effect, inwall particularly for blank 1 has good exhaust effect, at the same time, can realize effectively supporting the structure of blank 1 and preventing its heat distortion.
Claims (7)
1. the sintering integrated chemical industry dress of exhaust, comprise sintering boat (2), exhaust conducting structure (3), described sintering boat (2) is provided with exhaust outlet (201); It is characterized in that: exhaust conducting structure (3) is installed in sintering boat (2), described exhaust conducting structure (3) comprises cavity structure, this cavity structure is in communication with the outside, be vented conducting structure (3) surface simultaneously and be provided with the through hole being communicated with cavity structure, described cavity structure is discharge chamber (301), through hole is steam vent (302), the outer wall profile of this exhaust conducting structure (3) and the inner chamber profile of blank (1) adapt, and described sintering boat (2) middle berth is filled with sand burning.
2. the sintering integrated chemical industry dress of exhaust as claimed in claim 1, it is characterized in that: described sintering boat (2) comprises dismountable upper end cover (202), described exhaust outlet (201) is positioned at upper end cover (202), and discharge chamber (301) is in communication with the outside through upper end cover (202).
3. the sintering integrated chemical industry dress of exhaust as claimed in claim 1, it is characterized in that: the percent opening on described exhaust conducting structure (3) is 40-80%, steam vent (302) is for some apertures are consistent, uniform through hole of arranging is distributed in exhaust conducting structure (3) surface.
4. the sintering integrated chemical industry dress of exhaust as claimed in claim 3, is characterized in that: described steam vent (302) aperture is 0.1-1 millimeter.
5. the sintering integrated chemical industry dress of exhaust as claimed in claim 1, is characterized in that: described sand burning adopts Al
2o
3or SiO
2particle, this sand burning granularity is 65 order to 10 orders.
6. the sintering integrated chemical industry dress of exhaust as claimed in claim 1, is characterized in that: the radial vertical range between blank (1) and exhaust conducting structure (3) is 3-5 millimeter.
7. the sintering integrated chemical industry dress of exhaust as claimed in claim 1, is characterized in that: described frock is provided with positioner (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468457.5U CN204818065U (en) | 2015-06-30 | 2015-06-30 | Exhaust sintering integration frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468457.5U CN204818065U (en) | 2015-06-30 | 2015-06-30 | Exhaust sintering integration frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204818065U true CN204818065U (en) | 2015-12-02 |
Family
ID=54675707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520468457.5U Withdrawn - After Issue CN204818065U (en) | 2015-06-30 | 2015-06-30 | Exhaust sintering integration frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204818065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959607A (en) * | 2015-06-30 | 2015-10-07 | 成都易态科技有限公司 | Exhausting and sintering integration method and tool for implementing same |
-
2015
- 2015-06-30 CN CN201520468457.5U patent/CN204818065U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959607A (en) * | 2015-06-30 | 2015-10-07 | 成都易态科技有限公司 | Exhausting and sintering integration method and tool for implementing same |
| CN104959607B (en) * | 2015-06-30 | 2017-05-17 | 成都易态科技有限公司 | Exhausting and sintering integration method and tool for implementing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20170517 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20170517 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |