CN205538009U - Thermocouple seat for vacuum heat treatment - Google Patents
Thermocouple seat for vacuum heat treatment Download PDFInfo
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- CN205538009U CN205538009U CN201620103559.1U CN201620103559U CN205538009U CN 205538009 U CN205538009 U CN 205538009U CN 201620103559 U CN201620103559 U CN 201620103559U CN 205538009 U CN205538009 U CN 205538009U
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- vacuum heat
- room
- thermocouple
- sealing shroud
- mounting seat
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Abstract
The utility model discloses a thermocouple seat for vacuum heat treatment, including upper cover, seal cover room, mount pad body, the mount pad body is provided with the through -hole along the axial, mount pad body upper portion is provided with the seal cover room, the upper cover with seal cover room junction is equipped with the sealing washer, the seal cover room with mount pad body junction is equipped with the sealing washer, seal cover room lower part is equipped with in proper order presses cover and sealing washer, the sealing washer be by silica gel make and quantity can be three, press the cover and the outer end facial features of sealing washer to contact, the utility model discloses loading and unloading convenience, simple structure, sealing performance are good, and economic security has good market prospect.
Description
Technical field
This utility model belongs to thermocouple assembly technical field, relates in particular to a kind of vacuum heat thermocouple seat.
Background technology
At present, workpiece being carried out heat treatment, generally use vacuum heat treatment furnace, vacuum heat treatment furnace refers to what the whole of Technology for Heating Processing and part were carried out under vacuum conditions.Vacuum heat furnace thermal efficiency is high, can realize being rapidly heated and lowering the temperature, and can realize non-oxidation, without decarburization, without carburizing, can remove the phosphorus bits of surface of the work, and have defat degasification etc. to act on, thus reach the effect of surface-brightening purification.
The complex art that two specialties of vacuum heat i.e. vacuum technique and heat treatment combine.Vacuum is divided into basic, normal, high and ultrahigh vacuum by China.The working vacuum degree of current most of vacuum heat treatment furnace is at 1.33-1.33 × 10-³Pa.Vacuum heat almost can realize whole Technology for Heating Processing, as quenched, anneal, being tempered, carburizing, nitridation, quenching technical can realize air quenching, oil quenching, nitrate quenching, shrend etc., it is also possible to carry out vacuum brazing, sintering, surface process etc..Vacuum heat furnace thermal efficiency is high, can realize being rapidly heated and lowering the temperature, and can realize non-oxidation, without decarburization, without carburizing, can remove the phosphorus bits of surface of the work, and have defat degasification etc. to act on, thus reach the effect of surface-brightening purification.In general, processed workpiece heats slowly in stove, and the interior-heat temperature difference is less, and thermal stress is little, thus deforms little.Conforming product rate is high.Cost can be reduced, have getter action, thus improve mechanical performance and the service life of work.Good work environment, operates safety, does not pollute and public hazards.Processed workpiece does not has hydrogen embrittlement dangerous, and titanium material and refractory metal shell are prevented surface hydrogen embrittlement, the stability of vacuum heat treatment process and reproducible.This series of advantage, exploitation vacuum heat treatment equipment and technique are increasingly paid attention to and are applied more and more wider.
But, common metal material heats in air furnace, owing to there is the oxidizing gas such as oxygen, steam, carbon dioxide in air, these gases and metal generation Oxidation easily make heated metal surface produce oxide-film or oxide skin, lose original metallic luster completely.These gases also to react with the carbon in metal simultaneously so that it is skin decarburization.If containing carbon monoxide or methane gas in stove, metal surface carburetting also can be made.Ti, Zr the most active for chemical property and insoluble metal W, Mo, Nb, Ta etc.; air furnace heats; in addition to oxide to be generated, hydride, nitride, also to absorb these gases and spread to metal inside, making the performance severe exacerbation of metal material.These oxidation, decarburization, carburetting, air-breathings even produce the disadvantages such as corrosion, heat, be sometimes also difficult to avoid that in controlled atmosphere generator or salt bath furnace.For solving this problem, it is common practice to leave allowance before heat treatment of workpieces, after heat treatment, remove oxidation, decarburized layer etc. in processing.
But, one of vacuum drying oven key technical index is exactly that burner hearth slip (or claiming Pressure Rise Rate) is less than certain numerical value.If vacuum drying oven burner hearth seals bad, leaking in processing workpiece fabrication, the lighter causes heat treatment of workpieces quality problems, and serious meeting causes burner hearth to burn.Vacuum heat treatment process, in burner hearth, air is clean by basic pump drainage, thus ensure that workpiece not oxidized corrosion and other dirt contamination in whole heating process.The Control for Kiln Temperature of vacuum drying oven heating uses thermocouple to measure fire box temperature, to carry out record and the control of process furnace temperature.Thermocouple is connected through hearth wall with outside temperature indicator, monitor, controller, and the installation at thermocouple and furnace wall perforation must assure that sealing, and can stand the impact of n-anti-differential pressure of atmospheric pressure.
In prior art, the mounting means of thermocouple is of all kinds, and the problem existed mainly has: seal failure easily occur under burner hearth n-negative pressure alternating action；Installation and removal inconvenience, and it is easily damaged thermo wires during installation and removal；Just scrapping after using once with the thermocouple thermo wires of the precious metal manufacture such as platinum, rhodium, cost is the highest；Big multiple thermocouple seat does not carry out anti-oxidation protection to thermocouple thermo wires negative pressure end so that thermocouple wire is easily damaged.
Summary of the invention
The purpose of this utility model is to provide a kind of vacuum heat thermocouple seat; wherein; including upper cover, sealing shroud room, mounting seat body; described mounting seat body is axially disposed through hole; it is characterized in that: described mounting seat body upper part is provided with sealing shroud room so that thermocouple thermo wires negative pressure end is carried out anti-oxidation protection so that thermocouple wire is hardly damaged; its simple in construction, easy for installation.
The purpose of this utility model is to be achieved by following technical scheme.
A kind of vacuum heat thermocouple seat, including upper cover, sealing shroud room, mounting seat body, described mounting seat body is axially disposed through hole, and described mounting seat body upper part is provided with sealing shroud room.
Further, upper cover described above and junction, described sealing shroud room are provided with sealing ring, and described sealing shroud room and described mounting seat body junction are provided with sealing ring.
Further, bottom, sealing shroud room described above is sequentially provided with gland and sealing ring.
Further, sealing ring described above is made up of silica gel and quantity can be three.
Further, described galvanic couple seat is provided with a gland, and gland contacts with the outer face of sealing ring.
Further, upper cover described above can be connected with described sealing shroud room by nut.
Preferably, sealing shroud room described above can be connected with described mounting seat body by nut.
Preferably, the lower end of through hole described above connects stove outer covering body and flue.
Preferably, above-mentioned thermocouple is arranged at described sealing shroud chamber interior.
Compared with prior art, this utility model has clear advantage and provides the benefit that: bottom, sealing shroud room is sequentially provided with gland and sealing ring, and can arrange the number of sealing ring according to actual needs so that sealing effectiveness is more preferable；Mount and dismount convenient, and thermo wires will not be damaged during installation and removal；The thermocouple thermo wires that the precious metals such as reusable platinum, rhodium manufacture, cost-effective；Big multiple thermocouple seat does not carry out anti-oxidation protection to thermocouple thermo wires negative pressure end; this utility model is provided with sealing shroud room at mounting seat body upper part; making thermocouple wire antioxidation so that more robust, therefore this utility model handling are more convenient, more seal reliably, be suitable for the popularization of galvanic couple seat.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model a kind of vacuum heat thermocouple seat.
Detailed description of the invention
Below by specific embodiment and combine accompanying drawing this utility model is described in further detail.
nullAs shown in Figure 1，Of the present utility model the utility model discloses a kind of vacuum heat thermocouple seat，Including upper cover (1)、Sealing shroud room (2)、Mounting seat body (3)，Described mounting seat body (3) is axially disposed through hole (4)，Described mounting seat body (3) top is provided with sealing shroud room (2)，Described upper cover (1) and described sealing shroud room (2) junction are provided with sealing ring (11)，Described sealing shroud room (2) and described mounting seat body (3) junction are provided with sealing ring (33)，Described sealing shroud room (2) bottom is sequentially provided with gland (5) and sealing ring (55)，Described sealing ring is made up of silica gel and quantity can be three，Gland described above (5) contacts with the outer face of sealing ring (55)，Described upper cover (1) can be connected with described sealing shroud room (2) by nut，Described sealing shroud room (2) can be connected with described mounting seat body (3) by nut，The lower end of described through hole (4) connects stove outer covering body and flue，It is internal that above-mentioned thermocouple is arranged at described sealing shroud room (2).
When specifically used, mounting seat body (3) is fixed on vacuum drying oven body of heater, then thermocouple (6) is sequentially passed through gland (5) and sealing ring (55) by through hole (4), it is connected with described sealing shroud room (2) finally by described upper cover (1), described sealing shroud room (2) is connected with described mounting seat body (3), sealing function due to sealing shroud room (2) so that thermocouple is antioxidation under subnormal ambient, more robust；Meanwhile, sealing ring (55) is inwardly wrapped thermocouple, is outwards adjacent to mounting seat body (3) inwall, it is achieved that the purpose of sealing.
Person of ordinary skill in the field is in the case of without departing from the broader invention concept of above-described embodiment, above-described embodiment can be changed, but, it should be understood that, this utility model is not limited to disclosed specific embodiment, but is intended to the amendment in the spirit and scope of the present utility model being defined by the claims.
Claims (9)
1. a vacuum heat thermocouple seat, including upper cover, sealing shroud room, mounting seat body, described mounting seat body is axially disposed through hole, it is characterised in that: described mounting seat body upper part is provided with sealing shroud room.
A kind of vacuum heat thermocouple seat the most according to claim 1, it is characterised in that: described upper cover and junction, described sealing shroud room are provided with sealing ring, and described sealing shroud room and described mounting seat body junction are provided with sealing ring.
A kind of vacuum heat thermocouple seat the most according to claim 1, it is characterised in that: bottom, described sealing shroud room is sequentially provided with gland and sealing ring.
4. according to a kind of vacuum heat thermocouple seat described in Claims 2 or 3, it is characterised in that: described sealing ring is made up of silica gel and quantity can be three.
5. according to a kind of vacuum heat thermocouple seat described in claim 1 or 2 or 3, it is characterised in that: described thermocouple seat is provided with a gland, and gland contacts with the outer face of sealing ring.
A kind of vacuum heat thermocouple seat the most according to claim 1, it is characterised in that: described upper cover can be connected with described sealing shroud room by nut.
A kind of vacuum heat thermocouple seat the most according to claim 1 and 2, it is characterised in that: described sealing shroud room can be connected with described mounting seat body by nut.
A kind of vacuum heat thermocouple seat the most according to claim 1, it is characterised in that: the lower end of described through hole connects stove outer covering body and flue.
A kind of vacuum heat thermocouple seat the most according to claim 1, it is characterised in that: thermocouple is arranged at described sealing shroud chamber interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620103559.1U CN205538009U (en) | 2016-02-02 | 2016-02-02 | Thermocouple seat for vacuum heat treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620103559.1U CN205538009U (en) | 2016-02-02 | 2016-02-02 | Thermocouple seat for vacuum heat treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538009U true CN205538009U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620103559.1U Active CN205538009U (en) | 2016-02-02 | 2016-02-02 | Thermocouple seat for vacuum heat treatment |
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| Country | Link |
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| CN (1) | CN205538009U (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 |
-
2016
- 2016-02-02 CN CN201620103559.1U patent/CN205538009U/en active Active
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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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |