CN104498745B - 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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- CN104498745B CN104498745B CN201410811862.2A CN201410811862A CN104498745B CN 104498745 B CN104498745 B CN 104498745B CN 201410811862 A CN201410811862 A CN 201410811862A CN 104498745 B CN104498745 B CN 104498745B
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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 heating, wherein the temperature of the heating furnace is not lower 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 of heating furnace temperature uniformity, more particularly, to one kind is using biphase titanium conjunction
In transformation temperature up and down, corresponding titanium alloy tissue is different and indirectly temperature field uniformity coefficient in reaction heating furnace for golden heating-up temperature
Detection method.
Background technology
Titanium alloy transformation temperature is the key point of reflection titanium alloy structural transformation, diphasic titanium alloy carrying with heating-up temperature
Height, in its mirco structure, the content of primary alpha phase is more and more lower, when heating-up temperature is equal to phase point temperature, primary alpha phase content 0
～3%；When heating-up temperature exceedes transformation temperature, primary alpha phase content is 0.
At present, in existing reaction heating furnace the method for temperature field uniformity coefficient mostly to there is detection process complicated and can not
The intuitively accurate temperature field in reaction heating furnace, and there is no and come into being between phase content and heating-up temperature using diphasic titanium alloy
It is related to this feature, to detect the uniformity of heating-furnace bore temperature.
Content of the invention
It is an object of the invention to provide a kind of detection method of heating furnace temperature uniformity, it has simple
With the feature that heating temperature field in furnace is intuitively accurately judged, examined with solving heating furnace temperature uniformity in prior art
Survey the problems referred to above existing.
For reaching this purpose, the present invention employs the following technical solutions：
A kind of detection method of heating furnace temperature uniformity, it comprises the following steps：
1) measure the phase point temperature of a certain diphasic titanium alloy first；
2) several diphasic titanium alloy test blocks of homogeneity are placed in the point for measuring temperature heating in heating furnace to be measured, heating
Furnace temperature is less than phase point temperature；
3) heating furnace quickly cools down to the test block come out of the stove to after temperature insulation；
4) observe the mirco structure comparing each test block；Measure the content of the primary alpha phase of each test block, by comparing
Primary alpha phase content is how many, judges the distribution situation of heating temperature field in furnace.
Especially, described step 2) in first the close iron sheet of size between one and effective heating area is put on drop-bottom.
Especially, described step 2) in several diphasic titanium alloy test blocks are numbered, and be wound in NI-G silk
Overall outside test block is in spherical, is then placed on the point for measuring temperature in heating furnace, and ensures the NI-G silk other end outside heating furnace, side
Just come out of the stove.
Especially, described step 2) in heating furnace thermometric point selection in heating furnace the corner of uniform temperature zone largest contours and
Center.
Especially, described step 3) in test block come out of the stove after quickly cooled down using water-cooling pattern, test block is from going out fire door
To entering water time≤3 second.
Beneficial effects of the present invention are, compared with prior art the detection method energy of described heating furnace temperature uniformity
Enough heating temperature field in furnace is more intuitively accurately judged, and because test block is originally as titanium alloy material matter, with heating furnace institute
The product material of processing is identical, has preferable guarantee for the more sensitive titanic alloy machining technique such as quasi- β forging and β forging and makees
With.
Brief description
Fig. 1 is the overhaul flow chart of the detection method that the present invention heats 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 diagram of stokehold；
Fig. 3 be the present invention heat furnace temperature uniformity detection method in heating stove measuring warm spot scattergram.
In figure：
1st, NI-G silk；2nd, test block；3rd, point for measuring temperature；4th, uniform temperature zone largest contours.
Specific embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by specific embodiment.
Refer to shown in Fig. 1 to Fig. 3, in the present embodiment, a kind of detection method of heating furnace temperature uniformity, its bag
Include following steps：
1) several 15 side diphasic titanium alloy test blocks are taken；
2) measure diphasic titanium alloy phase point temperature T β；
3) the close iron sheet of size between one and effective heating area is put on drop-bottom；
4) test block 3 is numbered, and entirety is in spherical outward to be wound in test block 2 with NI-G silk 1, and ensure that NI-G silk 1 is another
, outside heating furnace, conveniently come out of the stove in one end；
5) furnace temp is set in β -5 DEG C of T, test block 2 arrives warm shove charge, test block 2 is positioned over adding on iron sheet
Hot stove point for measuring temperature 3；Described point for measuring temperature 3 selects the corner of uniform temperature zone largest contours 4 and center in heating furnace；
6) prepare the bucket more than 200L on heating furnace doorway；
7) heating furnace is come out of the stove quick water-cooled after insulation 45 ± 5min to after temperature, and furnace temperature is slightly opened, and test block 2 is from going out fire door
To entering water time≤3 second.
8) observe the mirco structure comparing each sample, primary alpha phase content deviation within 3%, then illustrates heating-furnace
Temperature is uniformly.If primary alpha phase content deviation is more than 3%, illustrate that furnace temp field is uneven, should not be used in operation quasi- β forging and β
The more sensitive titanic alloy machining technique such as forging.
Above example simply elaborates ultimate principle and the characteristic of the present invention, and the present invention is not limited by above-mentioned example,
Without departing from the spirit and scope, the present invention also has various change and change, and these changes and change both fall within
In scope of the claimed invention.Claimed scope is by appending claims and its equivalent thereof.
Claims (5)
1. a kind of detection method of heating furnace temperature uniformity is it is characterised in that it comprises the following steps：
1) measure the phase point temperature of a certain diphasic titanium alloy first；
2) several diphasic titanium alloy test blocks of homogeneity are placed in the point for measuring temperature heating in heating furnace to be measured, heat furnace temperature
Degree is less than phase point temperature；
3) heating furnace quickly cools down to the test block come out of the stove to after temperature insulation；
4) observe the mirco structure comparing each test block；Measure the content of the primary alpha phase of each test block, by relatively more nascent
α phase content is how many, judges the distribution situation of heating temperature field in furnace.
2. the detection method of heating furnace temperature uniformity according to claim 1 is it is characterised in that described step 2)
The close iron sheet of size between one and effective heating area is put on drop-bottom in middle elder generation.
3. the detection method of heating furnace temperature uniformity according to claim 2 is it is characterised in that described step 2)
In several diphasic titanium alloy test blocks are numbered, and to be wound in outside test block overall with NI-G silk be in spherical, Ran Houfang
On the point for measuring temperature of iron sheet, and ensure the NI-G silk other end outside heating furnace.
4. the detection method of heating furnace temperature uniformity according to claim 1 is it is characterised in that described step 2)
The thermometric point selection of middle the heating furnace corner of uniform temperature zone largest contours and center in heating furnace.
5. according to any one of Claims 1-4 heating furnace temperature uniformity detection method it is characterised in that
Described step 3) in test block come out of the stove after quickly cooled down using water-cooling pattern, test block is from going out fire door to entering water time≤3 second.
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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 CN104498745A (en) | 2015-04-08 |
| CN104498745B true CN104498745B (en) | 2017-02-22 |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS56135135A (en) * | 1980-03-26 | 1981-10-22 | Toshimitsu Musha | Temperature detection device |
| WO2012147998A1 (en) * | 2011-04-27 | 2012-11-01 | 東邦チタニウム株式会社 | α+β-TYPE OR β-TYPE TITANIUM ALLOY AND METHOD FOR MANUFACTURING SAME |
| CN103629838A (en) * | 2013-11-10 | 2014-03-12 | 西安航天化学动力厂 | Aerodynamic heating furnace |
| CN103952529B (en) * | 2014-05-08 | 2015-08-12 | 济钢集团有限公司 | A kind of walking beam furnace is based on thermally equilibrated optimum furnace method |
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