CN103335516A - Dewaxing device used for powder metallurgy push-rod-type sintering furnace - Google Patents
Dewaxing device used for powder metallurgy push-rod-type sintering furnace Download PDFInfo
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- CN103335516A CN103335516A CN2013102270674A CN201310227067A CN103335516A CN 103335516 A CN103335516 A CN 103335516A CN 2013102270674 A CN2013102270674 A CN 2013102270674A CN 201310227067 A CN201310227067 A CN 201310227067A CN 103335516 A CN103335516 A CN 103335516A
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- dewaxing
- sintering furnace
- tank body
- powder metallurgy
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Abstract
The invention discloses a dewaxing device used for a powder metallurgy push-rod-type sintering furnace. The dewaxing device is mounted between a preheating device and the sintering furnace and comprises a tank body, a feed pipe, dewaxing discharge pipes, an exhaust gas outlet pipe and a wax collection system, wherein the front end of the tank body is connected with the feed pipe; the tank body is connected with the wax collection system through the dewaxing discharge pipes; the exhaust gas outlet pipe is connected onto the side surface of the tank body. The dewaxing device has the characteristics of improving the product quality and production efficiency, protecting equipment from strain cracking, and the like.
Description
Technical field
The present invention relates to a kind of dewaxing device, relate in particular to a kind of dewaxing device for powder metallurgy push-down sintering furnace.
Background technology
Present sintered metal product sintering furnace; by the sintering furnace feed zone; the sintering furnace sintering stage; the sintering furnace cooling section; ammonia tank; liquefied ammonia decomposes electric furnace and is configured to propping up; connect the sintering furnace feed zone at the front end of sintering furnace sintering stage; be provided with the charging flap in the end of sintering furnace feed zone; connect the sintering furnace cooling section in the rear end of sintering furnace sintering stage; set out the material flap in the end of sintering furnace cooling section; support is fixed on the bottom of sintering furnace sintering stage; before the sintering furnace cooling section is respectively equipped with on the sintering furnace feed zone; the final vacuum pipe; upper wall in sintering furnace sintering stage rear end is established the ammonia input pipe; ammonia tank decomposes electric furnace through liquefied ammonia and is connected on the ammonia input pipe by pipeline; liquefied ammonia in the ammonia tank decomposes electric furnace through liquefied ammonia and resolves into CO; CH4 and other hydrocarbon gas; in the ammonia input pipe is transported to the sintering furnace sintering stage; make the powder metallurgy blank under the carburizing atmosphere protection, carry out sintering, prevent that oxidation and decarbonization is to improve content of pearlite in alloy and and the comprehensive mechanical performance of product in sintering process.But the existing deficiency of this atmosphere sintering furnace is: 1, decompose electric furnace owing to must add ammonia tank and liquefied ammonia, so equipment volume is big, floor space is big, and complex structure, inconvenient operation, production efficiency are low; 2, owing to adopted liquefied ammonia to decompose electric furnace, so energy consumption height, maintenance cost height, product quality are not high; 3, because liquefied ammonia equipment easy deformation cracking in operating process causes revealing, thereby causes environmental pollution and human injury, use dangerous.
Dewaxing device is made up of admission line, dewaxing discharge line, receipts wax system, the dewaxing device of traditional pressure sintering stove all has only a dewaxing pipeline, in dewaxing process, furnace gas remains from all directions are concentrated and flows to the dewaxing pipe, and subsidiary forming agent is all concentrated from the discharge of dewaxing pipe in the air-flow.Because traditional dewaxing furnace all has only a dewaxing pipeline, in dewaxing process, flowing to of furnace gas is unalterable, subsidiary forming agent is all concentrated from the dewaxing pipe and is discharged in the air-flow, be easy to cause the carbon potential at dewaxing pipe place in the stove local higher than other like this, cause the inhomogeneous of properties of product behind the sintering.Traditional production process energy resource consumption height needs to add filter aid, and seriously polluted, and automaticity is low, and production cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of product quality and production efficiency of having improved, protection equipment is difficult for the dewaxing device that is used for powder metallurgy push-down sintering furnace of characteristics such as strain cracking.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of dewaxing device for powder metallurgy push-down sintering furnace, be installed between preheating device and the sintering furnace, comprise tank body, feed pipe, dewaxing discharge pipe, waste gas outlet pipe and receipts wax system, the front end of described tank body is connected with described feed pipe, described tank body is connected with described receipts wax system by some dewaxing discharge pipes, and described waste gas outlet pipe is connected the side of described tank body.
In a preferred embodiment of the present invention, the number of described dewaxing discharge pipe is 2.
In a preferred embodiment of the present invention, described receipts wax system comprises receives the wax case.
In a preferred embodiment of the present invention, described dewaxing discharge pipe is provided with the family of power and influence.
In a preferred embodiment of the present invention, the described family of power and influence is by the control system switch.
Dewaxing device for powder metallurgy push-down sintering furnace of the present invention has and has improved product quality and production efficiency, and protection equipment is difficult for characteristics such as strain cracking.
Description of drawings
Fig. 1 is the perspective view that the present invention is used for dewaxing device one preferred embodiment of powder metallurgy push-down sintering furnace;
The mark of each parts is as follows in the accompanying drawing: 1, tank body, 2, feed pipe, 3, the dewaxing discharge pipe, 4, waste gas outlet pipe, 5, receive the wax system.
The specific embodiment
Below only be the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with a preferred embodiment and accompanying drawing technical scheme of the present invention is further described.
Consult Fig. 1, a kind of dewaxing device for powder metallurgy push-down sintering furnace, be installed between preheating device and the sintering furnace, comprise tank body 1, feed pipe 2, dewaxing discharge pipe 3, waste gas outlet pipe 4 and receive wax system 5, the front end of described tank body 1 is connected with described feed pipe 2, described tank body 1 is connected with described receipts wax system 5 by some dewaxing discharge pipes 3, and described waste gas outlet pipe 4 is connected the side of described tank body 1.
Further specify, the number of described dewaxing discharge pipe is 2, and described receipts wax system comprises receives the wax case, and described dewaxing discharge pipe is provided with the family of power and influence, and the described family of power and influence is by the control system switch.
Dewaxing device for powder metallurgy push-down sintering furnace of the present invention, be installed between preheating device and the sintering furnace, comprise tank body, feed pipe, dewaxing discharge pipe, waste gas outlet pipe and receipts wax system, the front end of described tank body is connected with described feed pipe, described tank body is connected with described receipts wax system by some dewaxing discharge pipes, and described waste gas outlet pipe is connected the side of described tank body.In dewaxing process, be used alternatingly 2 dewaxing pipeline de-waxings, make whole stove product dewaxing more even, properties of product are more uniform and stable, because the dewaxing section length is short, the time of dewaxing needed 15 minutes fully in the past, and production efficiency is slow, and dewaxing is also incomplete, gas is the possibility rapid expansion also, in order to enhance productivity, has increased the length in dewaxing district, and the fusing point that improves dewaxing is more than 140 degree, just can dewax fully in 12 minutes.Therefore the dewaxing device for powder metallurgy push-down sintering furnace of the present invention has and has improved product quality and production efficiency, and protection equipment is difficult for characteristics such as strain cracking.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (5)
1. dewaxing device that is used for powder metallurgy push-down sintering furnace, it is characterized in that: be installed between preheating device and the sintering furnace, comprise tank body, feed pipe, dewaxing discharge pipe, waste gas outlet pipe and receipts wax system, the front end of described tank body is connected with described feed pipe, described tank body is connected with described receipts wax system by some dewaxing discharge pipes, and described waste gas outlet pipe is connected the side of described tank body.
2. the dewaxing device for powder metallurgy push-down sintering furnace according to claim 1, it is characterized in that: the number of described dewaxing discharge pipe is 2.
3. the dewaxing device for powder metallurgy push-down sintering furnace according to claim 1 is characterized in that: described receipts wax system comprises receives the wax case.
4. the dewaxing device for powder metallurgy push-down sintering furnace according to claim 1, it is characterized in that: described dewaxing discharge pipe is provided with the family of power and influence.
5. the dewaxing device for powder metallurgy push-down sintering furnace according to claim 4 is characterized in that: the described family of power and influence is by the control system switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102270674A CN103335516A (en) | 2013-06-08 | 2013-06-08 | Dewaxing device used for powder metallurgy push-rod-type sintering furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102270674A CN103335516A (en) | 2013-06-08 | 2013-06-08 | Dewaxing device used for powder metallurgy push-rod-type sintering furnace |
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| CN103335516A true CN103335516A (en) | 2013-10-02 |
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| CN2013102270674A Pending CN103335516A (en) | 2013-06-08 | 2013-06-08 | Dewaxing device used for powder metallurgy push-rod-type sintering furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914615A (en) * | 2017-02-23 | 2017-07-04 | 常熟市双月机械有限公司 | A kind of powder metallurgy sintering furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201960131U (en) * | 2011-03-04 | 2011-09-07 | 湖南博云东方粉末冶金有限公司 | Direction-variable airflow carbonium device |
| CN201969872U (en) * | 2011-03-03 | 2011-09-14 | 湖南博云东方粉末冶金有限公司 | Sintering furnace and dewaxing device thereof |
| CN202212577U (en) * | 2011-07-22 | 2012-05-09 | 浙江一火科技有限公司 | Vacuum sintering furnace for metal injection molding |
| CN102980390A (en) * | 2012-12-24 | 2013-03-20 | 苏州工业园区杰士通真空技术有限公司 | Tantalum capacitor vacuum sintering dewaxing furnace |
| CN203421947U (en) * | 2013-06-08 | 2014-02-05 | 常熟市双月机械有限公司 | Dewaxing device for powder metallurgy push rod type sintering furnace |
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2013
- 2013-06-08 CN CN2013102270674A patent/CN103335516A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201969872U (en) * | 2011-03-03 | 2011-09-14 | 湖南博云东方粉末冶金有限公司 | Sintering furnace and dewaxing device thereof |
| CN201960131U (en) * | 2011-03-04 | 2011-09-07 | 湖南博云东方粉末冶金有限公司 | Direction-variable airflow carbonium device |
| CN202212577U (en) * | 2011-07-22 | 2012-05-09 | 浙江一火科技有限公司 | Vacuum sintering furnace for metal injection molding |
| CN102980390A (en) * | 2012-12-24 | 2013-03-20 | 苏州工业园区杰士通真空技术有限公司 | Tantalum capacitor vacuum sintering dewaxing furnace |
| CN203421947U (en) * | 2013-06-08 | 2014-02-05 | 常熟市双月机械有限公司 | Dewaxing device for powder metallurgy push rod type sintering furnace |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914615A (en) * | 2017-02-23 | 2017-07-04 | 常熟市双月机械有限公司 | A kind of powder metallurgy sintering furnace |
| CN106914615B (en) * | 2017-02-23 | 2018-09-21 | 常熟市双月机械有限公司 | A kind of powder metallurgy sintering furnace |
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Application publication date: 20131002 |