CN108526462A - A kind of sintering process of high-temperature hydrogen burning stove - Google Patents
A kind of sintering process of high-temperature hydrogen burning stove Download PDFInfo
- Publication number
- CN108526462A CN108526462A CN201810174953.8A CN201810174953A CN108526462A CN 108526462 A CN108526462 A CN 108526462A CN 201810174953 A CN201810174953 A CN 201810174953A CN 108526462 A CN108526462 A CN 108526462A
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- China
- Prior art keywords
- burning stove
- fire door
- temperature hydrogen
- hydrogen burning
- temperature
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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
- 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
-
- 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
- B22F3/003—Apparatus, e.g. furnaces
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Resistance Heating (AREA)
Abstract
The invention discloses a kind of sintering process of high-temperature hydrogen burning stove, include the following steps：S1, after being passed through nitrogen into high-temperature hydrogen burning stove mixed gas is constantly passed through into high-temperature hydrogen burning stove；S2, high-temperature hydrogen burning stove is powered on；S3, hydrogen is lighted into rear pull-up import fire door, the molybdenum boat for being plugged biscuit is ajusted and is placed on import stove gate；S4, the import fire door of high-temperature hydrogen burning stove is closed, pushes molybdenum boat during propeller is run；S5, when molybdenum boat proceed to outlet fire door at, by export fire door at hydrogen is lighted after open outlet fire door, molybdenum boat is ticked using hook, and be placed on bracket and cooled down；S6, outlet fire door is closed, and the hydrogen at outlet fire door is made to be automatically closed.The present invention had not only interfered with the performance of product, but also can improve the finish of finished surface, it helps forms good middle layer so that end product is more beautiful, and sintering process is simple and convenient, and sintering time is short.
Description
Technical field
The present invention relates to casting method technical field more particularly to a kind of sintering process of high-temperature hydrogen burning stove.
Background technology
Hydrogen-burning stove using lead to hydrogen or hydrogen, nitrogen mixture gas as protective atmosphere heating equipment, can be used for ceramic post sintering or
Metallization, soldering, glass components sealing-in metal parts annealing and purification, it is also possible to make powder metallurgy and semiconducting alloy
Sintering etc..Temperature change unobvious of existing hydrogen-burning stove during sintering so that the finished product for finally being sintered out generates
The possibility of flaw increases, to influence the aesthetics of product.Therefore, we have proposed a kind of sintering process of high-temperature hydrogen burning stove
For solving the above problems.
Invention content
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of burning of the high-temperature hydrogen burning stove proposed
Knot technique.
A kind of sintering process of high-temperature hydrogen burning stove, includes the following steps：
S1, it is passed through nitrogen into high-temperature hydrogen burning stove, the air in high-temperature hydrogen burning stove is purged out, when in high-temperature hydrogen burning stove
Nitrogen be passed through after the completion of, be constantly passed through mixed gas into high-temperature hydrogen burning stove；
S2, high-temperature hydrogen burning stove is powered on so that the temperature in 5 areas Ge Lu in high-temperature hydrogen burning stove reaches scheduled temperature
Value；
S3, ignition switch at high-temperature hydrogen burning stove import fire door is pressed, hydrogen is lighted into rear pull-up import fire door, being plugged
The molybdenum boat of biscuit, which is ajusted, is placed on import stove gate；
S4, the import fire door of high-temperature hydrogen burning stove is closed, is pushed molybdenum boat during propeller is run, and molybdenum boat
In high-temperature hydrogen burning stove constantly outlet fire door is proceeded to from import fire door；
S5, when molybdenum boat proceed to outlet fire door at when, by export fire door at ignition switch press, beaten after hydrogen is lighted
A mouthful fire door is outputed, molybdenum boat is ticked outside high-temperature hydrogen burning stove using stainless steel hook, molybdenum boat is placed on the bracket outside high-temperature hydrogen burning stove
On cooled down；
S6, outlet fire door is closed, and the ignition switch at outlet fire door is made to reset the hydrogen so that at outlet fire door
It is automatically closed.
Optimization, the time that is passed through of the nitrogen is 40min-60min, and the rate that is passed through of nitrogen is 8L/min-12L/
min。
Optimization, the mixed gas includes hydrogen and nitrogen, and the volume of hydrogen accounts for the 30%- of mixed gas volume
50%.
Optimization, the high-temperature hydrogen burning stove includes 5 areas Ge Lu, and 5 areas Ge Lu from import fire door to outlet fire door are being sintered
Temperature in the process is respectively 1300 DEG C, 1800 DEG C, 1900 DEG C, 1870 DEG C and 1300 DEG C, wherein the 3rd stove of high-temperature hydrogen burning stove
The temperature in area has to be larger than 1800 DEG C.
Optimization, the import fire door and outlet fire door are forbidden to open simultaneously during being sintered, in order to avoid air
The generation that sets off an explosion is immersed in stove.
Optimization, the once sintered working time of the high-temperature hydrogen burning stove is 15min, and is gone out every time at outlet fire door
The quantity of boat is 3-4 boats.
Optimization, the propeller is made of lead screw and pushing ram, and propeller needs the machine oil of addition in two days, is used for
Ensure lubricant effect.
Optimization, the biscuit is referred to as ceramic tube, and ceramic tube can be inserted into molybdenum by the ceramic tube pole at both ends
Enter in high-temperature hydrogen burning stove in boat and is sintered.
Optimization, the temperature in the high-temperature hydrogen burning stove is detected using optics temperature measurer, the sintering in high-temperature hydrogen burning stove
After the completion, power supply is closed when the temperature in high-temperature hydrogen burning stove is less than 200 DEG C, stops being passed through mixed gas in high-temperature hydrogen burning stove.
The beneficial effects of the invention are as follows：
1, of the invention, it is rapidly heated in sintering process, the process of soak and fast cooling can to burn
The finish for tying product improves, and has not only interfered with the performance of product, but also can improve the finish of finished surface, it helps shape
At good middle layer so that end product is more beautiful.
2, of the invention, when being sintered to biscuit using high-temperature hydrogen burning stove, sintering process is simple and convenient, sintering time
It is short, as long as and will not generate if whole process is implemented in strict accordance with step and unexpected damaged to operator.
Specific implementation mode
The present invention is made further to explain with reference to specific embodiment.
Embodiment：A kind of sintering process of high-temperature hydrogen burning stove, includes the following steps：
S1, it is passed through nitrogen into high-temperature hydrogen burning stove, the air in high-temperature hydrogen burning stove is purged out, nitrogen is passed through the time
The rate that is passed through for 50min, nitrogen is 10L/min, after the completion of the nitrogen in high-temperature hydrogen burning stove is passed through, into high-temperature hydrogen burning stove
It constantly is passed through mixed gas, mixed gas includes hydrogen and nitrogen, and the volume of hydrogen accounts for the 50% of mixed gas volume；
S2, high-temperature hydrogen burning stove is powered on so that the temperature in 5 areas Ge Lu in high-temperature hydrogen burning stove reaches scheduled temperature
Value, temperature of 5 areas Ge Lu in sintering process from import fire door to outlet fire door are respectively 1300 DEG C, 1800 DEG C, 1900 DEG C,
1870 DEG C and 1300 DEG C, the temperature in wherein the 3rd areas Ge Lu of high-temperature hydrogen burning stove has to be larger than 1800 DEG C；
S3, ignition switch at high-temperature hydrogen burning stove import fire door is pressed, hydrogen is lighted into rear pull-up import fire door, being plugged
The molybdenum boat of biscuit, which is ajusted, is placed on import stove gate, and biscuit is referred to as ceramic tube, and ceramic tube can pass through the ceramic tube at both ends
Pole is inserted into molybdenum boat；
S4, the import fire door of high-temperature hydrogen burning stove is closed, pushes molybdenum boat during propeller is run, propeller by
Lead screw and pushing ram composition, and propeller needs the machine oil of addition in two days, for ensuring lubricant effect so that molybdenum boat is in high temperature
In hydrogen-burning stove constantly outlet fire door is proceeded to from import fire door；
S5, when molybdenum boat proceed to outlet fire door at when, by export fire door at ignition switch press, beaten after hydrogen is lighted
A mouthful fire door is outputed, molybdenum boat is ticked outside high-temperature hydrogen burning stove using stainless steel hook, molybdenum boat is placed on the bracket outside high-temperature hydrogen burning stove
On cooled down, once sintered working time of high-temperature hydrogen burning stove is 15min, and goes out the quantity of boat every time at outlet fire door
For 4 boats；
S6, outlet fire door is closed, and the ignition switch at outlet fire door is made to reset the hydrogen so that at outlet fire door
It is automatically closed.
Wherein, import fire door and outlet fire door are forbidden to open simultaneously during being sintered, in case air immerses stove
Inside set off an explosion generation；Temperature in high-temperature hydrogen burning stove is detected using optics temperature measurer, when the sintering in high-temperature hydrogen burning stove is completed
Afterwards, power supply is closed when the temperature in high-temperature hydrogen burning stove is less than 200 DEG C, stops being passed through mixed gas in high-temperature hydrogen burning stove.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of sintering process of high-temperature hydrogen burning stove, which is characterized in that include the following steps：
S1, it is passed through nitrogen into high-temperature hydrogen burning stove, the air in high-temperature hydrogen burning stove is purged out, the nitrogen in high-temperature hydrogen burning stove
After the completion of gas is passed through, mixed gas is constantly passed through into high-temperature hydrogen burning stove；
S2, high-temperature hydrogen burning stove is powered on so that the temperature in 5 areas Ge Lu in high-temperature hydrogen burning stove reaches scheduled temperature value；
S3, ignition switch at high-temperature hydrogen burning stove import fire door is pressed, hydrogen is lighted into rear pull-up import fire door, being plugged biscuit
Molybdenum boat ajust and be placed on import stove gate；
S4, the import fire door of high-temperature hydrogen burning stove is closed, is pushed molybdenum boat during propeller is run, and molybdenum boat is in height
In warm hydrogen-burning stove constantly outlet fire door is proceeded to from import fire door；
S5, when molybdenum boat proceed to outlet fire door at when, by export fire door at ignition switch press, opened out after hydrogen is lighted
Mouth fire door, is ticked molybdenum boat outside high-temperature hydrogen burning stove using stainless steel hook, the bracket that molybdenum boat is placed on outside high-temperature hydrogen burning stove is enterprising
Row cooling；
S6, outlet fire door is closed, and the ignition switch at outlet fire door is resetted so that the hydrogen at outlet fire door is automatic
It closes.
2. a kind of sintering process of high-temperature hydrogen burning stove according to claim 1, which is characterized in that when being passed through of the nitrogen
Between be 40min-60min, nitrogen be passed through rate be 8L/min-12L/min.
3. a kind of sintering process of high-temperature hydrogen burning stove according to claim 1, which is characterized in that the mixed gas includes
There are hydrogen and nitrogen, and the volume of hydrogen accounts for the 30%-50% of mixed gas volume.
4. a kind of sintering process of high-temperature hydrogen burning stove according to claim 1, which is characterized in that the high-temperature hydrogen burning stove packet
5 areas Ge Lu are included, temperature of 5 areas Ge Lu in sintering process from import fire door to outlet fire door is respectively 1300 DEG C, 1800 DEG C,
1900 DEG C, 1870 DEG C and 1300 DEG C, the temperature in wherein the 3rd areas Ge Lu of high-temperature hydrogen burning stove has to be larger than 1800 DEG C.
5. a kind of sintering process of high-temperature hydrogen burning stove according to claim 1, which is characterized in that the import fire door and go out
Mouth fire door is forbidden to open simultaneously during being sintered, in case air immerses in stove the generation that sets off an explosion.
6. a kind of sintering process of high-temperature hydrogen burning stove according to claim 1, which is characterized in that the high-temperature hydrogen burning stove
The once sintered working time is 15min, and it is 3-4 boats to go out the quantity of boat every time at outlet fire door.
7. a kind of sintering process of high-temperature hydrogen burning stove according to claim 1, which is characterized in that the propeller is by lead screw
It is formed with pushing ram, and propeller needs the machine oil of addition in two days, for ensuring lubricant effect.
8. a kind of sintering process of high-temperature hydrogen burning stove according to claim 1, which is characterized in that the biscuit can also claim
For ceramic tube, ceramic tube can be inserted into enter in high-temperature hydrogen burning stove in molybdenum boat by the ceramic tube pole at both ends and is sintered.
9. a kind of sintering process of high-temperature hydrogen burning stove according to claim 1, which is characterized in that in the high-temperature hydrogen burning stove
Temperature detected using optics temperature measurer, after the completion of the sintering in high-temperature hydrogen burning stove, close power supply in the high-temperature hydrogen burning stove
When temperature is less than 200 DEG C, stop being passed through mixed gas in high-temperature hydrogen burning stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810174953.8A CN108526462A (en) | 2018-03-02 | 2018-03-02 | A kind of sintering process of high-temperature hydrogen burning stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810174953.8A CN108526462A (en) | 2018-03-02 | 2018-03-02 | A kind of sintering process of high-temperature hydrogen burning stove |
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| Publication Number | Publication Date |
|---|---|
| CN108526462A true CN108526462A (en) | 2018-09-14 |
Family
ID=63485987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810174953.8A Pending CN108526462A (en) | 2018-03-02 | 2018-03-02 | A kind of sintering process of high-temperature hydrogen burning stove |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821652A (en) * | 2018-09-28 | 2019-05-31 | 甘肃虹光电子有限责任公司 | A kind of cathode tungsten powder classification and sorting processing method |
| CN113321515A (en) * | 2021-05-21 | 2021-08-31 | 洛阳中赫非晶科技有限公司 | Sintering process for ferrite magnetic core |
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2018
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Patent Citations (6)
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| JPH04245510A (en) * | 1991-01-31 | 1992-09-02 | Nec Corp | High temperature hydrogen furnace |
| CN1724456A (en) * | 2005-06-13 | 2006-01-25 | 王伟 | Metallized ceramic for microwave megnetron and it production method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821652A (en) * | 2018-09-28 | 2019-05-31 | 甘肃虹光电子有限责任公司 | A kind of cathode tungsten powder classification and sorting processing method |
| CN109821652B (en) * | 2018-09-28 | 2021-07-09 | 甘肃虹光电子有限责任公司 | Cathode tungsten powder grading and sorting treatment method |
| CN113321515A (en) * | 2021-05-21 | 2021-08-31 | 洛阳中赫非晶科技有限公司 | Sintering process for ferrite magnetic core |
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Application publication date: 20180914 |
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