阅读说明：本技术 一种测温铠装热电偶的加工工艺 (Processing technology of temperature-measuring armored thermocouple ) 是由 许渊华 邹子涵 徐涛 张伟 徐康吉 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种测温铠装热电偶的加工工艺,包括以下步骤：将外层金属套管加热至700-1200℃；通过运输设备将加热好的金属套管运输至热轧机处；将单层铠装热电偶装入外层金属套管内,并使用热轧机对热电偶和金属套管进行轧制。本发明通过改变外层金属套管的材质,并热轧加工出铠装热电偶,从而显著提高了铠装热电偶的使用寿命,增加了铠装热电偶使用时的测温效果。(The invention discloses a processing technology of a temperature-measuring armored thermocouple, which comprises the following steps: heating the outer layer metal sleeve to 700-1200 ℃; transporting the heated metal sleeve to a hot rolling mill by a transporting device; and (3) putting the single-layer armored thermocouple into the outer-layer metal sleeve, and rolling the thermocouple and the metal sleeve by using a hot rolling mill. According to the invention, the material of the outer metal sleeve is changed, and the armored thermocouple is processed by hot rolling, so that the service life of the armored thermocouple is obviously prolonged, and the temperature measurement effect of the armored thermocouple in use is improved.)

1. A processing technology of a temperature-measuring armored thermocouple is characterized in that: the method comprises the following steps:

heating the outer layer metal sleeve to 700-1200 ℃;

transporting the heated metal sleeve to a hot rolling mill by a transporting device;

the single-layer armored thermocouple is arranged in the outer-layer metal sleeve, and the thermocouple and the metal sleeve are rolled by a hot rolling mill;

the transportation equipment in the step 2) comprises a driving device (1), two fixing devices (2) arranged on the driving device, an adjusting device (3) arranged on one side of the driving device and a processing device (4) arranged on one side of the driving device; the driving device (1) comprises a first driving piece (11), a first telescopic rod (12) arranged on the first driving piece, two connecting rods (13) arranged on the first telescopic rod, and two fixing rods (14) respectively arranged on the two connecting rods; the first telescopic rod can rotate relative to the first driving piece; after outer metal casing heating accomplished, start first driving piece and drive first telescopic link and rotate, and then drive one of them dead lever and remove to the metal casing top that the heating is good, contract first telescopic link afterwards, drive the dead lever downstream, and penetrate the dead lever in the metal casing that the heating is good, fix the back to metal casing through fixing device, extend first telescopic link and start first driving piece and drive first telescopic link and rotate, and then the dead lever drives the metal casing that the heating is good and removes to the processingequipment top, another dead lever removes to new metal casing top simultaneously.

2. The processing technology of the thermometric armored thermocouple according to claim 1, characterized in that: the outer layer metal sleeve adopts FeCr₂₅Al₅And (3) alloy materials.

3. The processing technology of the thermometric armored thermocouple according to claim 1, characterized in that: the outer-layer metal sleeve is formed by deep hole machining of a bar.

4. The processing technology of the thermometric armored thermocouple according to claim 3, wherein: the wall thickness of the outer metal sleeve of the finished product is 3-5 mm.

5. The process for manufacturing a thermometric armored thermocouple according to claim 4, wherein: the outer metal jacket was heated to 950 ℃ before rolling.

6. The processing technology of the thermometric armored thermocouple according to claim 1, characterized in that: the fixing device (2) comprises a moving ring (21) arranged on a fixing rod (14), a plurality of rotating plates (22) arranged on the fixing rod, a plurality of rotating rods (23) respectively used for connecting the rotating plates and the fixing rod, a plurality of rotating blocks (24) respectively used for connecting the rotating plates and the moving ring, a groove (25) arranged on the rotating plates, and a lug (26) arranged on the groove; the movable ring can move relative to the fixed rod, the rotating plate can rotate relative to a rotating stick, the rotating stick can rotate relative to the fixed rod, the rotating block can rotate relative to the rotating plate, and the rotating block can rotate relative to the movable ring; after the fixed rod penetrates into the metal sleeve under the driving of the first telescopic rod, the moving ring moves downwards and drives the rotating block and the rotating plate to turn over towards the outer side of the fixed rod, then the rotating block moves to the groove while turning over, and is finally buckled in the groove, and the lower part of the metal sleeve is supported and fixed through the upward surface of the rotating block and the rotating plate after turning over.

7. The processing technology of the thermometric armored thermocouple according to claim 1, characterized in that: the fixing device (2) further comprises a plurality of rotating grooves (27) arranged on the fixing rod (14), a plurality of rotating rods (28) respectively arranged on the plurality of rotating grooves, a plurality of hooks (29) respectively arranged on the plurality of rotating rods, a plurality of inclined plates (20) arranged on the moving ring, a plurality of first supporting blocks (201) respectively arranged on the plurality of hooks, and a plurality of second supporting plates (202) respectively arranged on the plurality of inclined plates; the hook can rotate relative to the rotating rod; when the shift ring needs to be fixed, carry out the lock through couple and swash plate and fix, when the shift ring needs to remove, promote the upper end of couple and drive the couple and rotate to break away from couple and swash plate each other, and then remove the shift ring.

Technical Field

The invention belongs to the technical field of thermocouple processing, and particularly relates to a processing technology of a temperature-measuring armored thermocouple.

Background

At present, the traditional armored thermocouple is manufactured by cold-drawing the combination of a metal sleeve, an insulating material and a thermocouple wire. The metal sleeve is generally made of stainless steel or nickel-based high-temperature alloy, and has good oxidation resistance and corrosion resistance at the temperature of below 1100 ℃. Because the metal sleeve is only provided with one layer, the service life of the traditional single-layer armored thermocouple is shorter under severe environments with high-temperature corrosion, and the cost control and the efficiency improvement are not facilitated.

Disclosure of Invention

The invention provides a processing technology of a temperature-measuring armored thermocouple, which aims to overcome the defects of the prior art and prolong the service life of the armored thermocouple and increase the temperature-measuring effect of the armored thermocouple in use.

In order to achieve the purpose, the invention adopts the following technical scheme: a processing technology of a temperature-measuring armored thermocouple comprises the following steps:

1) heating the outer layer metal sleeve to 700-1200 ℃;

2) transporting the heated metal sleeve to a hot rolling mill by a transporting device;

3) the single-layer armored thermocouple is arranged in the outer-layer metal sleeve, and the thermocouple and the metal sleeve are rolled by a hot rolling mill;

the transportation equipment in the step 2) comprises a driving device, two fixing devices arranged on the driving device, an adjusting device arranged on one side of the driving device and a processing device arranged on one side of the driving device; the driving device comprises a first driving piece, a first telescopic rod arranged on the first driving piece, two connecting rods arranged on the first telescopic rod, and two fixing rods respectively arranged on the two connecting rods; the first telescopic rod can rotate relative to the first driving piece; after the outer-layer metal sleeve is heated, starting a first driving piece to drive a first telescopic rod to rotate, further driving one of the fixed rods to move to the position above the heated metal sleeve, then contracting the first telescopic rod to drive the fixed rod to move downwards, penetrating the fixed rod into the heated metal sleeve, after the metal sleeve is fixed through a fixing device, extending the first telescopic rod, starting the first driving piece to drive the first telescopic rod to rotate, further driving the heated metal sleeve to move to the position above a processing device through the fixed rod, and simultaneously moving the other fixed rod to the position above a new metal sleeve; through the setting of first telescopic link, when first telescopic link shrink or extension, two dead levers can move down in step or rise, make a dead lever when placing metal casing on processingequipment, another dead lever can penetrate new dead lever department and fix, make two dead levers carry out the operation of material loading and unloading in step, the efficiency that metal casing removed to processingequipment has been increased, guaranteed that accurate the placing of metal casing is on processingequipment, avoided the metal casing to appear dropping or the position to not put the steady condition at the in-process that removes.

The outer layer metal sleeve adopts FeCr₂₅Al₅And (3) alloy materials.

The outer-layer metal sleeve is formed by deep hole machining of a bar.

The wall thickness of the outer metal sleeve of the finished product is 3-5 mm.

The outer metal jacket was heated to 950 ℃ before rolling.

The fixing device comprises a moving ring arranged on the fixed rod, a plurality of rotating plates arranged on the fixed rod, a plurality of rotating rods respectively used for connecting the plurality of rotating plates and the fixed rod, a plurality of rotating blocks respectively used for connecting the plurality of rotating plates and the moving ring, a groove arranged on the rotating plates, and a bump arranged on the groove; the movable ring can move relative to the fixed rod, the rotating plate can rotate relative to a rotating stick, the rotating stick can rotate relative to the fixed rod, the rotating block can rotate relative to the rotating plate, and the rotating block can rotate relative to the movable ring; after the fixed rod penetrates into the metal sleeve under the driving of the first telescopic rod, the movable ring moves downwards and drives the rotating block and the rotating plate to turn over towards the outer side of the fixed rod, then the rotating block moves to the groove while turning over, and is finally buckled in the groove, and the lower part of the metal sleeve is supported and fixed through the upward surface of the rotating block and the rotating plate after turning over; through the arrangement of the rotating plate and the rotating block, after the fixed rod penetrates through the metal sleeve, the metal sleeve can be supported through the rotating plate and the rotating block after being turned over, and meanwhile, the fixed rod is matched to play a role in supporting and fixing the metal sleeve; through the setting of lug, make the turning block after buckleing into in the recess, can carry out supporting role to the turning block through the lug, guaranteed the turning block upset back surface up and the mutual level of turning plate surface up simultaneously, the unstable condition appears putting when having avoided because there is the metal sleeve that the difference in height leads to between the surface of turning block and turning plate to place on turning plate and turning block, and then the condition that rocks appears in having avoided the metal sleeve because putting the transportation that the unstability leads to, stability when having increased the metal sleeve and removing.

The fixing device also comprises a plurality of rotating grooves arranged on the fixing rod, a plurality of rotating rods respectively arranged on the plurality of rotating grooves, a plurality of hooks respectively arranged on the plurality of rotating rods, a plurality of inclined plates arranged on the moving ring, a plurality of first supporting blocks respectively arranged on the plurality of hooks, and a plurality of second supporting plates respectively arranged on the plurality of inclined plates; the hook can rotate relative to the rotating rod; when the movable ring needs to be fixed, the movable ring is buckled and fixed through the hook and the inclined plate, when the movable ring needs to be moved, the upper end of the hook is pushed to drive the hook to rotate, the hook and the inclined plate are separated from each other, and then the movable ring is moved; through the arrangement of the hook, the movable ring can be fixed through the hook when not used, and further the rotating plate and the rotating block are fixed, so that the rotating block and the rotating plate cannot be automatically separated from the fixed rod, and the situation that the fixed rod cannot penetrate into the middle of the metal sleeve because the rotating plate and the rotating block are automatically separated from the fixed rod is avoided; through the setting of first backup pad and second backup pad, when the couple fixes the shift ring, can carry out further fixed to the position of couple and shift ring contact through first backup pad and second backup pad for the dead lever can not appear and couple the condition that breaks away from each other at the in-process that removes, has increased the couple and has moved the stability when the ring is fixed.

In summary, the invention has the following advantages: the service life of the armored thermocouple is prolonged, and the temperature measuring effect of the armored thermocouple in use is improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial enlarged view of the invention at a in fig. 1.

Fig. 3 is a side view of the present invention.

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 according to the present invention.

Fig. 5 is a partial enlarged view of the invention at a in fig. 4.

Fig. 6 is a partial enlarged view of the invention at a in fig. 5.

Fig. 7 is a partial enlarged view of the invention at B in fig. 5.

Fig. 8 is a partial enlarged view of the invention at B in fig. 4.

Fig. 9 is a partial enlarged view of the invention at C in fig. 4.

Fig. 10 is an enlarged view of a portion of the invention at D in fig. 4.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.