CN107796525A - High-speed steel salt bath furnace for thermal treatment pyrometer couple - Google Patents
High-speed steel salt bath furnace for thermal treatment pyrometer couple Download PDFInfo
- Publication number
- CN107796525A CN107796525A CN201710923392.2A CN201710923392A CN107796525A CN 107796525 A CN107796525 A CN 107796525A CN 201710923392 A CN201710923392 A CN 201710923392A CN 107796525 A CN107796525 A CN 107796525A
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- stainless steel
- sleeve pipe
- outer sleeve
- steel outer
- platinum
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a kind of high-speed steel salt bath furnace for thermal treatment pyrometer couple.It includes stainless steel outer sleeve pipe and the platinum rhodium platinum thermo wires being serially connected with stainless steel outer sleeve pipe, one end of stainless steel outer sleeve pipe is provided with terminal box, other end is as test side, the cold end of platinum rhodium platinum thermo wires is penetrated into terminal box out of stainless steel outer sleeve pipe, the hot junction of platinum rhodium platinum thermo wires extend into the test side bottom of stainless steel outer sleeve pipe, and the test side side of stainless steel outer sleeve pipe is additionally provided with the porcelain bushing being enclosed on outside platinum rhodium platinum thermo wires.After above-mentioned structure, so that thermotonus is very accurate, precision is very high, avoids the harmful effect of extraneous factor, temperature control stationarity hyperthermia radiation meter ± 10o more preferably in ± 3o, its rational structure design advantages of simple, matching component need not be used, make its safe and reliable, it is easy to operate and without appurtenances disturb, fault rate is low and can be very good to predict heating furnace operating limit, exchanges heating furnace in time.
Description
Technical field
The present invention relates to a kind of high-speed steel salt bath furnace for thermal treatment Temperature Measure Control device, specifically a kind of high-speed steel
Salt bath furnace for thermal treatment pyrometer couple.
Background technology
Since China sixties in last century all the time, high-speed steel salt bath furnace for thermal treatment high-temperature control all uses hyperthermia radiation
Suitable electronic potential difference meter is counted to control high speed product made from steel to be heat-treated high temperature quenching temperature section as 1140 DEG C -1310 DEG C,
Its operation principle is that heat radiation feeds back to electron potentiometer by hyperthermia radiation meter as caused by high-temperature salt bath, so as to reach
Reflection and control furnace temperature, this temperature-controlling system have a disadvantage that：
1st, it is merely capable of reflecting surface of burner hearth salt temperature, the furnace temperature authenticity of reflection cannot be effectively ensured；
2nd, the temperature of reflection is inaccurate and due to influence of the smog to radiometer so that the temperature wave amplitude of control is big and unstable
It is fixed, so as to influence the quality of product heat treatment；
3rd, because hyperthermia radiation meter distance high-temperature salt bath furnace is relatively nearly about 800 millimeters, and hyperthermia radiation meter eyepiece environment temperature must not
More than 40 DEG C, it usually needs install water cooling protection set to eyepiece, water jacket will be run into so in actual production and blocks or leaks
The possibility of water, the former can cause product heat treatment high-temperature heating temperature control and scrap, and the latter may cause leak to instill
The potential safety hazard of explosion danger is caused in High Temperature Salt Bath Furnace；
4th, due to hyperthermia radiation meter overlay area can not have it is a bit block, bring inconvenience to actual production, such as：Work
The blocking of dress, the skew of eyepiece, salt drop splashing are bonded on eyepiece and can all cause temperature distortion, so as to cause product heat treatment to scrap
Deng.
The content of the invention
The technical problem to be solved in the present invention is to provide one kind is simple to operate, accuracy of detection is high, good using stationarity
And the high-speed steel salt bath furnace for thermal treatment pyrometer couple that fault rate is low.
In order to solve the above-mentioned technical problem, high-speed steel salt bath furnace for thermal treatment pyrometer couple of the invention, including stainless steel
Outer tube and the platinum Pt Rh thermo wires being serially connected with stainless steel outer sleeve pipe, one end of stainless steel outer sleeve pipe are provided with terminal box,
Other end is penetrated into terminal box as test side, the cold end of platinum Pt Rh thermo wires out of stainless steel outer sleeve pipe, and platinum Pt Rh is even
The hot junction of silk extend into the test side bottom of stainless steel outer sleeve pipe, and the test side side of stainless steel outer sleeve pipe, which is additionally provided with, is enclosed on platinum
Porcelain bushing outside Pt Rh thermo wires.
The test side end of the stainless steel sleeve pipe is provided with undergauge section.
The stainless steel outer sleeve pipe has 90o bendings.
After above-mentioned structure, due to using resistant to elevated temperatures platinum Pt Rh thermo wires and by stainless steel sleeve pipe and ceramic jacket
Two layers of protection structure of pipe is inserted directly into test temperature in salt bath, on the one hand, so that thermotonus is very accurate, precision is very
Height, still further aspect, avoid the harmful effect of extraneous factor, temperature control stationarity hyperthermia radiation meter ± 10 more preferably in ± 3o
O, another further aspect, its rational structure design advantages of simple, it is not necessary to using matching component, make its safe and reliable, operate
Conveniently and without appurtenances disturb, fault rate is low and can be very good to predict heating furnace operating limit, exchanges heating furnace in time.
Brief description of the drawings
Fig. 1 is the structural representation of high-speed steel salt bath furnace for thermal treatment pyrometer couple of the present invention.
Embodiment
With reference to the accompanying drawings and detailed description, to the present invention high-speed steel salt bath furnace for thermal treatment pyrometer couple make into
One step describes in detail.
The high-speed steel salt bath furnace for thermal treatment pyrometer couple of the present invention, it is a kind of to insert setting for thermometric and temperature control in salt bath
It is standby, and Continental Europe table EUROTHERM 3504 or day island proper ammeter SR3 are connected with intellect digital display, intelligentized control method is realized, is dashed forward
Break for more than half a century, the control of high temperature quenching temperature is heat-treated using the conventional high rate product made from steel of hyperthermia radiation meter, it
Including stainless steel outer sleeve pipe 1 and the platinum Pt Rh thermo wires 2 being serially connected with stainless steel outer sleeve pipe, the one of the stainless steel outer sleeve pipe 1
End is provided with terminal box 3, and other end penetrates as test side 4, the cold end of the platinum Pt Rh thermo wires 2 from stainless steel outer sleeve pipe
Into terminal box 3, the hot junction of platinum Pt Rh thermo wires 2 extend into the test side bottom of stainless steel outer sleeve pipe, stainless steel outer sleeve pipe 1
Test side side is additionally provided with the porcelain bushing 4 being enclosed on outside platinum Pt Rh thermo wires 2.
Further, the test side end of described stainless steel sleeve pipe 1 is provided with undergauge section 5, as seen from the figure, stainless steel sleeve
The diameter of the test side end of pipe 1 be less than upper end diameter, its stainless steel outer sleeve pipe 1 from middle part be in 90o bendings.
Visible by structure of the invention, the present invention uses platinum Pt Rh thermo wires high temperature resistant, adds again not by the way that ceramics protection is outer
Rust steel protection overcoat pipe is corrosion-resistant to be combined into pyrometer couple, and set is reduced at the thermo wires hot junction of stainless steel protection outer tube front end
Pipe external diameter, reducing casing wall thickness, greatly improved the sensitivity of thermocouple, 90o bending makes thermocouple cold junction away from high-temperature region,
So that cold end environment temperature tends to room temperature, effective sealing makes etchant gas be difficult into, ensure that the survey of thermocouple
Warm precision and Acceptable life, it is necessary to explanation, although thermocouple is a kind of common temperature test control device,
The high-speed steel salt bath furnace for thermal treatment pyrometer couple of the present invention is totally different from low temperature thermocouple in general salt bath furnace, except energy
Outside accurate reflection and control furnace temperature, because its specific structure design reaches following three basic indexs, the first high temperature resistant temperature
The corrosion-resistant continuous work 1000 hours of -1310 DEG C second of section 1140 DEG C, the sensitive furnace temperature change delay reaction of the 3rd thermotonus
Time≤4 second, proved by practice test, this is that thermocouples all in the prior art is unable to reach and gone beyond.
Claims (3)
- A kind of 1. high-speed steel salt bath furnace for thermal treatment pyrometer couple, it is characterised in that：Including stainless steel outer sleeve pipe（1）And concatenation In the platinum Pt Rh thermo wires in stainless steel outer sleeve pipe（2）, the stainless steel outer sleeve pipe（1）One end terminal box is installed（3）, separately Outer one end is as test side（4）, the platinum Pt Rh thermo wires（2）Cold end penetrate into terminal box from stainless steel outer sleeve pipe（3）It is interior, The platinum Pt Rh thermo wires（2）Hot junction extend into the test side bottom of stainless steel outer sleeve pipe, the stainless steel outer sleeve pipe（1）'s Test side side, which is additionally provided with, is enclosed on platinum Pt Rh thermo wires（2）Outer porcelain bushing（4）.
- 2. according to the high-speed steel salt bath furnace for thermal treatment pyrometer couple described in claim 1, it is characterised in that：The stainless steel sleeve Pipe（1）Test side end be provided with undergauge section（5）.
- 3. according to the high-speed steel salt bath furnace for thermal treatment pyrometer couple described in claim 1, it is characterised in that：Outside the stainless steel Sleeve pipe（1）With 90o bendings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923392.2A CN107796525A (en) | 2017-09-30 | 2017-09-30 | High-speed steel salt bath furnace for thermal treatment pyrometer couple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923392.2A CN107796525A (en) | 2017-09-30 | 2017-09-30 | High-speed steel salt bath furnace for thermal treatment pyrometer couple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107796525A true CN107796525A (en) | 2018-03-13 |
Family
ID=61532916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710923392.2A Pending CN107796525A (en) | 2017-09-30 | 2017-09-30 | High-speed steel salt bath furnace for thermal treatment pyrometer couple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107796525A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115505725A (en) * | 2022-09-24 | 2022-12-23 | 中国航空工业标准件制造有限责任公司 | Furnace temperature control method for aviation small part heat treatment process test |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204389047U (en) * | 2014-12-22 | 2015-06-10 | 新奥气化采煤有限公司 | Multiple thermocouple temperature measuring equipment and underground gasification system |
| CN204788704U (en) * | 2015-06-29 | 2015-11-18 | 天津市锐钦科技有限公司 | Thermocouple for roaster |
| CN105092098A (en) * | 2015-09-15 | 2015-11-25 | 沈阳飞机工业（集团）有限公司 | Double-graduation thermocouple and use method |
| CN105784160A (en) * | 2014-12-18 | 2016-07-20 | 国核（北京）科学技术研究院有限公司 | Temperature measuring device and method for measuring inner wall temperature of pipeline |
| CN107110711A (en) * | 2014-11-21 | 2017-08-29 | 法雷奥电机控制系统公司 | Temperature sensor |
| CN207423389U (en) * | 2017-09-30 | 2018-05-29 | 江苏省福达特种钢有限公司 | High-speed steel salt bath furnace for thermal treatment pyrometer couple |
-
2017
- 2017-09-30 CN CN201710923392.2A patent/CN107796525A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110711A (en) * | 2014-11-21 | 2017-08-29 | 法雷奥电机控制系统公司 | Temperature sensor |
| CN105784160A (en) * | 2014-12-18 | 2016-07-20 | 国核（北京）科学技术研究院有限公司 | Temperature measuring device and method for measuring inner wall temperature of pipeline |
| CN204389047U (en) * | 2014-12-22 | 2015-06-10 | 新奥气化采煤有限公司 | Multiple thermocouple temperature measuring equipment and underground gasification system |
| CN204788704U (en) * | 2015-06-29 | 2015-11-18 | 天津市锐钦科技有限公司 | Thermocouple for roaster |
| CN105092098A (en) * | 2015-09-15 | 2015-11-25 | 沈阳飞机工业（集团）有限公司 | Double-graduation thermocouple and use method |
| CN207423389U (en) * | 2017-09-30 | 2018-05-29 | 江苏省福达特种钢有限公司 | High-speed steel salt bath furnace for thermal treatment pyrometer couple |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115505725A (en) * | 2022-09-24 | 2022-12-23 | 中国航空工业标准件制造有限责任公司 | Furnace temperature control method for aviation small part heat treatment process test |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180313 |