CN104498745A - Method for detecting uniformity of temperature fields in heating furnace - Google Patents
Method for detecting uniformity of temperature fields in heating furnace Download PDFInfo
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- CN104498745A CN104498745A CN201410811862.2A CN201410811862A CN104498745A CN 104498745 A CN104498745 A CN 104498745A CN 201410811862 A CN201410811862 A CN 201410811862A CN 104498745 A CN104498745 A CN 104498745A
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Abstract
The invention discloses a method for detecting the uniformity of temperature fields in a heating furnace. The method comprises the following steps: 1) firstly measuring a phase transformation point temperature of certain two-phase titanium alloy; 2) putting a plurality of homogeneous two-phase titanium alloy test blocks into a temperature measuring point in a to-be-detected heating furnace and sintering, wherein the temperature of the heating furnace is not higher than the phase transformation point temperature; 3) quickly cooling the test blocks which are discharged out of the furnace after heating the heating furnace to the temperature and preserving the temperature; and 4) observing and comparing the microstructure of each test block, measuring the content of nascent alpha phase of each test block, and judging the distribution condition of temperature fields in the heating furnace by comparing the content of the nascent alpha phase. The method for detecting the uniformity of temperature fields in the heating furnace can be used for judging the temperature fields in the heating furnace more intuitively and accurately; the test blocks are made of an aluminum alloy material which is the same as that of a product processed by the heating furnace, and therefore, the method has a relatively good security effect on relatively sensitive titanium alloy processing processes such as pre-beta forging and beta forging.
Description
Technical field
The present invention relates to a kind of detection method heating furnace temperature uniformity, particularly relate to one and utilize diphasic titanium alloy Heating temperature upper and lower in transformation temperature, corresponding titanium alloy tissue difference and the indirectly detection method of uniform temperature fields degree in reaction heating furnace.
Background technology
Titanium alloy transformation temperature is the key point of reflection titanium alloy structural transformation, and diphasic titanium alloy is along with the raising of Heating temperature, and in its mirco structure, the content of primary alpha phase is more and more lower, and when Heating temperature equals phase point temperature, primary alpha phase content is 0 ~ 3%; When Heating temperature exceedes transformation temperature, primary alpha phase content is 0.
At present, in existing reaction heating furnace, mostly to there is testing process complicated and can not temperature field intuitively accurately in reaction heating furnace for the method for uniform temperature fields degree, and there is no to utilize and be related to this feature between diphasic titanium alloy primary phase content and Heating temperature, detect the homogeneity of heating-furnace bore temperature.
Summary of the invention
The object of the present invention is to provide a kind of detection method heating furnace temperature uniformity, it has feature that is simple and that intuitively judge accurately heating temperature field in furnace, heats to solve in prior art the problems referred to above that furnace temperature uniformity detects existence.
For reaching this object, the present invention by the following technical solutions:
Heat a detection method for furnace temperature uniformity, it comprises the following steps:
1) phase point temperature of a certain diphasic titanium alloy is first measured;
2) several diphasic titanium alloy test blocks of homogeneity are placed in the point for measuring temperature sintering in process furnace to be measured, furnace temp must not higher than phase point temperature;
3) process furnace cools fast the test block of coming out of the stove after temperature insulation;
4) mirco structure of each test block of observation and comparison; Measure the content of the primary alpha phase of each test block, how many by comparing primary alpha phase content, judge the distribution situation of heating temperature field in furnace.
Especially, described step 2) in first on drop-bottom, put the iron sheet that between one and effective heating area, size is close.
Especially, described step 2) in several diphasic titanium alloy test blocks are numbered, and it is outer overall in spherical to be wound in test block with NI-G silk, then puts on the point for measuring temperature of process furnace, and ensures that the NI-G silk the other end is outside process furnace, conveniently comes out of the stove.
Especially, described step 2) in the point for measuring temperature of process furnace select the corner of uniform temperature zone largest contours and center in process furnace.
Especially, described step 3) in test block come out of the stove after adopt water-cooling pattern to cool fast, test block from go out fire door to enter water time≤3 seconds.
Beneficial effect of the present invention is, compared with prior art the detection method of described heating furnace temperature uniformity more intuitively can judge accurately to heating temperature field in furnace, and because test block is originally as titanium alloy material matter, identical with the product material that process furnace is processed, for comparatively responsive titanic alloy machining techniques such as accurate β forging and β forgings, there is good guaranteeing role.
Accompanying drawing explanation
Fig. 1 is the overhaul flow chart that the present invention heats the detection method of furnace temperature uniformity;
Fig. 2 is that the present invention heats test block in the detection method of furnace temperature uniformity and enters the state graph of stokehold;
Fig. 3 is the distribution plan that the present invention heats heating stove measuring warm spot in the detection method of furnace temperature uniformity.
In figure:
1, NI-G silk; 2, test block; 3, point for measuring temperature; 4, uniform temperature zone largest contours.
Embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
Refer to shown in Fig. 1 to Fig. 3, in the present embodiment, a kind of detection method heating furnace temperature uniformity, it comprises the following steps:
1) several 15 side diphasic titanium alloy test blocks are got;
2) diphasic titanium alloy phase point temperature T β is measured;
3) on drop-bottom, the iron sheet that between one and effective heating area, size is close is put;
4) test block 3 is numbered, and it is outer overall in spherical to be wound in test block 2 with NI-G silk 1, and ensures that NI-G silk 1 the other end is outside process furnace, conveniently comes out of the stove;
5) furnace temp is set in T β-5 DEG C, test block 2 get the tempreture and set furnace, test block 2 is positioned over the heating stove measuring warm spot 3 on iron sheet; Described point for measuring temperature 3 selects corner and the center of uniform temperature zone largest contours 4 in process furnace;
6) bucket more than 200L is prepared on process furnace doorway;
7) to come out of the stove quick water-cooled after insulation 45 ± 5min after process furnace to temperature, furnace temperature is opened slightly, test block 2 from go out fire door to enter water time≤3 seconds.
8) mirco structure of each sample of observation and comparison, primary alpha phase content deviation within 3%, then illustrates that furnace temperature of heating furnace is even.If primary alpha phase content deviation is more than 3%, then illustrate that furnace temp field is uneven, the accurate β that should not be used for going into operation forges and the titanic alloy machining technique of the comparatively sensitivity such as β forging.
Above embodiment has just set forth ultimate principle of the present invention and characteristic; the present invention does not limit by above-mentioned example; without departing from the spirit and scope of the present invention, the present invention also has various change and change, and these changes and change all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. heat a detection method for furnace temperature uniformity, it is characterized in that, it comprises the following steps:
1) phase point temperature of a certain diphasic titanium alloy is first measured;
2) several diphasic titanium alloy test blocks of homogeneity are placed in the point for measuring temperature sintering in process furnace to be measured, furnace temp must not higher than phase point temperature;
3) process furnace cools fast the test block of coming out of the stove after temperature insulation;
4) mirco structure of each test block of observation and comparison; Measure the content of the primary alpha phase of each test block, how many by comparing primary alpha phase content, judge the distribution situation of heating temperature field in furnace.
2. the detection method of heating furnace temperature uniformity according to claim 1, is characterized in that, described step 2) in first on drop-bottom, put the iron sheet that between one and effective heating area, size is close.
3. the detection method of heating furnace temperature uniformity according to claim 2, it is characterized in that, described step 2) in several diphasic titanium alloy test blocks are numbered, and it is outer overall in spherical to be wound in test block with NI-G silk, then be placed on the point for measuring temperature of iron sheet, and ensure that the NI-G silk the other end is outside process furnace.
4. the detection method of heating furnace temperature uniformity according to claim 1, is characterized in that, described step 2) in the point for measuring temperature of process furnace select the corner of uniform temperature zone largest contours and center in process furnace.
5. the detection method of the heating furnace temperature uniformity according to any one of Claims 1-4, is characterized in that, described step 3) in test block come out of the stove after adopt water-cooling pattern to cool fast, test block from go out fire door to enter water time≤3 seconds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410811862.2A CN104498745B (en) | 2014-12-23 | 2014-12-23 | Method for detecting uniformity of temperature fields in heating furnace |
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| CN201410811862.2A CN104498745B (en) | 2014-12-23 | 2014-12-23 | Method for detecting uniformity of temperature fields in heating furnace |
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| CN104498745A true CN104498745A (en) | 2015-04-08 |
| CN104498745B CN104498745B (en) | 2017-02-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650236A (en) * | 2020-05-21 | 2020-09-11 | 西部超导材料科技股份有限公司 | Method for measuring titanium alloy beta transition temperature by adopting vertical tube furnace |
| CN113916716A (en) * | 2021-11-26 | 2022-01-11 | 河北中瓷电子科技股份有限公司 | Method for measuring atmosphere consistency in atmosphere sintering furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56135135A (en) * | 1980-03-26 | 1981-10-22 | Toshimitsu Musha | Temperature detection device |
| US20140044584A1 (en) * | 2011-04-27 | 2014-02-13 | Toho Titanium Co., Ltd. | Alpha + beta or beta TITANIUM ALLOY AND METHOD FOR PRODUCTION THEREOF |
| CN103629838A (en) * | 2013-11-10 | 2014-03-12 | 西安航天化学动力厂 | Aerodynamic heating furnace |
| CN103952529A (en) * | 2014-05-08 | 2014-07-30 | 济钢集团有限公司 | Thermal balance-based furnace temperature optimization method of walking beam furnace |
-
2014
- 2014-12-23 CN CN201410811862.2A patent/CN104498745B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56135135A (en) * | 1980-03-26 | 1981-10-22 | Toshimitsu Musha | Temperature detection device |
| US20140044584A1 (en) * | 2011-04-27 | 2014-02-13 | Toho Titanium Co., Ltd. | Alpha + beta or beta TITANIUM ALLOY AND METHOD FOR PRODUCTION THEREOF |
| CN103629838A (en) * | 2013-11-10 | 2014-03-12 | 西安航天化学动力厂 | Aerodynamic heating furnace |
| CN103952529A (en) * | 2014-05-08 | 2014-07-30 | 济钢集团有限公司 | Thermal balance-based furnace temperature optimization method of walking beam furnace |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650236A (en) * | 2020-05-21 | 2020-09-11 | 西部超导材料科技股份有限公司 | Method for measuring titanium alloy beta transition temperature by adopting vertical tube furnace |
| CN113916716A (en) * | 2021-11-26 | 2022-01-11 | 河北中瓷电子科技股份有限公司 | Method for measuring atmosphere consistency in atmosphere sintering furnace |
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| CN104498745B (en) | 2017-02-22 |
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