阅读说明：本技术 一种超导带材镀膜与热处理一体的多道卷绕装置 (Multi-channel winding device integrating film coating and heat treatment of superconducting strip ) 是由 李小宝 熊旭明 蔡渊 袁文 张爱兵 于 2020-06-29 设计创作，主要内容包括：本发明公开了一种超导带材镀膜与热处理一体的多道卷绕装置,包括带材放置腔室、镀膜腔室、退火腔室和有氧装置；所述带材放置腔室设置有放卷装置和收卷装置；所述带材放置腔室的一侧设置有镀膜腔室和退火腔室；所述放卷装置位处设置有放卷口；所述收卷装置处设置有收卷口；所述镀膜腔室上设置有镀膜腔出带口；所述退火腔室上设置有退火进带口；所述退火腔室设置有温度控制装置和有氧装置；所述退火腔室内设置有若干道带材的缠绕机构；在所述退火进带口处设置有真空机组a；在所述收卷口处设置有真空机组b。本案实现了高温超导带材镀膜与热处理同步进行,提升退火效率,保证退火充分,提升工作效率,缩短工时,减少成本和人为操作不当带来的损伤。(The invention discloses a multi-channel winding device integrating film coating and heat treatment of a superconducting strip, which comprises a strip placing chamber, a film coating chamber, an annealing chamber and an aerobic device, wherein the strip placing chamber is provided with a plurality of strip placing holes; the strip placing cavity is provided with an unreeling device and a reeling device; a coating chamber and an annealing chamber are arranged on one side of the strip placing chamber; a unwinding opening is formed in the unwinding device; a winding opening is formed in the winding device; a coating cavity strip outlet is formed in the coating cavity; an annealing strip inlet is formed in the annealing chamber; the annealing chamber is provided with a temperature control device and an aerobic device; a plurality of strip winding mechanisms are arranged in the annealing chamber; a vacuum unit a is arranged at the annealing strip inlet; and a vacuum unit b is arranged at the winding opening. The present case has realized that high temperature superconducting strip coating film and thermal treatment go on in step, promotes annealing efficiency, guarantees that annealing is abundant, promotes work efficiency, shortens man-hour, reduces the damage that cost and artificial misoperation brought.)

1. A multi-channel winding device integrating film coating and heat treatment of superconducting strips is characterized in that: comprises a strip placing chamber, a coating chamber, an annealing chamber and an aerobic device; the strip placing cavity is provided with an unreeling device and a reeling device; a coating chamber and an annealing chamber are arranged on one side of the strip placing chamber; a unreeling port is arranged at the unreeling device and is communicated with the strip placing chamber and the film coating chamber; a coiling port is arranged at the coiling device and is communicated with the strip material placing chamber and the annealing chamber; a coating cavity strip outlet is formed in the coating cavity on the opposite side of the unwinding port; an annealing strip inlet is formed in the annealing chamber on the opposite side of the coiling port; the annealing chamber is provided with a temperature control device and an aerobic device; a plurality of strip winding mechanisms are arranged in the annealing chamber; a vacuum unit a is arranged at the annealing strip inlet; and a vacuum unit b is arranged at the winding opening.

2. The multi-winding apparatus for superconducting tape coating and heat treatment as claimed in claim 1, wherein: an annealing inlet narrow channel is arranged at the annealing inlet and is communicated with the vacuum unit a; and an annealing outlet narrow channel is arranged at the winding port and is communicated with the vacuum unit b.

3. The multi-winding apparatus for superconducting tape coating and heat treatment as claimed in claim 1, wherein: and a heat insulation layer is arranged in the annealing chamber.

4. The multi-winding apparatus for superconducting tape coating and heat treatment as claimed in claim 3, wherein: the heat preservation layer is a ceramic chip.

5. The multi-winding apparatus for superconducting tape coating and heat treatment as claimed in claim 1, wherein: the aerobic device is an active oxygen generating mechanism.

6. The multi-winding apparatus for superconducting tape coating and heat treatment as claimed in claim 5, wherein: the active oxygen generating mechanism is a titanium electrode type active oxygen generating mechanism.

7. The multi-winding apparatus for superconducting tape coating and heat treatment as claimed in claim 1, wherein: the aerobic apparatus is provided with a plurality of oxygen delivery pathways.

8. The multi-winding apparatus for superconducting tape coating and heat treatment as claimed in claim 7, wherein: the tail end of the oxygen delivery passage is provided with an arc-shaped plate with a through hole.

9. The multi-winding apparatus for superconducting tape coating and heat treatment as claimed in claim 1, wherein: the winding mechanism is a plurality of winding guide wheels.

10. The multi-winding apparatus for superconducting tape coating and heat treatment as claimed in claim 1, wherein: and a plurality of direction guide wheels are arranged in the strip placing cavity.

Technical Field

The present invention relates to a winding apparatus for manufacturing a superconducting tape, which integrates a coating process and a heat treatment process.

Background

The high-temperature superconducting tape is a superconducting tape which is developed in recent years and has a great application prospect, and is widely applied to industries such as superconducting current limiters, nuclear magnetic resonance, superconducting magnets, power cables, military industry and the like. The typical structure of the second generation high temperature superconducting strip consists of four structures, namely a metal base band, a buffer layer, a superconducting layer and a stabilizing layer, wherein each layer is prepared by a plurality of complex processes, and unqualified processes of each layer can greatly influence the performance of the superconducting strip.

Wherein the stabilizer layer functions to protect the superconducting layer film and to introduce current into the superconducting layer. The Ag stabilizing layer is generally composed of an Ag stabilizing layer and a metal stabilizing layer, and the Ag stabilizing layer is prepared by adopting a physical vapor deposition method internationally and generally at present as an essential process. After the Ag stabilizing layer is prepared, the strip material needs to be subjected to oxygen-introducing annealing treatment. Firstly, the key purpose of high-temperature oxygen introduction is to convert an oxygen-deficient non-superconducting phase into a superconducting phase by increasing the oxygen content so as to realize a superconducting effect. Secondly, the bonding force between the deposited Ag layer and the superconducting layer is very weak due to the self performance of the Ag material, and the bonding force between the Ag layer and the superconducting layer can be increased to a certain degree by annealing, so that the superconducting layer is not damaged.

At present, the two processes of vapor deposition of Ag and annealing are carried out separately and independently internationally, oxygen is generally adopted in an annealing process, the oxygen is not very active at normal temperature, the production efficiency is seriously influenced due to long time of heat treatment for the requirement of the process at high temperature, the industrial application of future superconducting strips is not facilitated, therefore, active oxygen is preferentially selected to improve the annealing efficiency, gas used for annealing can be directly used for purchasing ozone with high purity from the market, but the ozone is very active and unstable due to the property, the storage is not facilitated, the field preparation and field use are best, and the price cost of the mode is high. Therefore, a proper active oxygen generator is preferably selected, and the active oxygen generator at the present stage mainly has three modes of a high-voltage charge-discharge type, an ultraviolet direct-injection type and a titanium electrode type. The high-voltage charging and discharging type technology is mature, the gas making quantity is large, but the equipment volume is large, and the energy consumption is high. The ultraviolet direct-injection type is faced with the trend of elimination due to low yield and short service life; it is more desirable to improve the efficiency and cost savings of the heat treatment.

The existing working procedures are that a kilometric-scale strip is firstly put into vacuum coating equipment for vapor deposition of an Ag layer, the vacuum equipment is closed after the coating process is finished, the strip is taken out, and the strip is put into a tubular annealing furnace with the length of 15 m. The strip is in so long pipeline, and it is flagging serious to receive the influence of gravity, makes the strip warp easily, causes the strip to damage, in addition because this tubular annealing stove length is too long and the volume is great, need carry out the evacuation to the tubular furnace before annealing, takes away unnecessary aqueous vapor and leads to the oxygen in the equipment again and guarantee the concentration of the oxygen in the annealing equipment, and efficiency is lower. Requiring tens of hours and is very cost and inefficient.

Disclosure of Invention

The invention aims to: the multi-winding device integrates the film coating and the heat treatment of the superconducting strip, ensures the production quality, reduces the cost and is manually operated, safe and stable, and can synchronously carry out the film coating and the heat treatment of the high-temperature superconducting strip, improve the working efficiency.

The technical scheme of the invention is as follows: a multi-channel winding device integrating film coating and heat treatment of a superconducting strip comprises a strip placing chamber, a film coating chamber, an annealing chamber and an aerobic device; the strip placing cavity is provided with an unreeling device and a reeling device; a coating chamber and an annealing chamber are arranged on one side of the strip placing chamber; a unreeling port is arranged at the unreeling device and is communicated with the strip placing chamber and the film coating chamber; a coiling port is arranged at the coiling device and is communicated with the strip material placing chamber and the annealing chamber; a coating cavity strip outlet is formed in the coating cavity on the opposite side of the unwinding port; an annealing strip inlet is formed in the annealing chamber on the opposite side of the coiling port; the annealing chamber is provided with a temperature control device and an aerobic device; a plurality of strip winding mechanisms are arranged in the annealing chamber; a vacuum unit a is arranged at the annealing strip inlet; and a vacuum unit b is arranged at the winding opening.

Preferably, an annealing inlet narrow channel is arranged at the annealing strip inlet and is communicated with the vacuum unit a; and an annealing outlet narrow channel is arranged at the winding port and is communicated with the vacuum unit b.

Preferably, an insulating layer is arranged inside the annealing chamber.

Preferably, the heat preservation layer is a ceramic wafer, so that the heat preservation effect can be achieved, and the cavity wall can be prevented from being blackened due to oxidation to pollute the cavity.

Preferably, the aerobic device is an active oxygen generating mechanism; the active oxygen generator at the present stage mainly has three modes of high-voltage charge-discharge type, ultraviolet direct-injection type and titanium electrode type.

Preferably, the active oxygen generating mechanism is a titanium electrode type active oxygen generating mechanism; the low-voltage electrolysis method is 3-5V, the concentration of active oxygen generated by the method is high, the specific gravity of a gas source can reach 18% -20%, and carcinogenic compounds such as nitrogen and the like are not contained. The raw materials for generating active oxygen are simple, pure water is used, other matched instruments are not needed, the electrode is modular, continuous operation can be achieved, the influence of environment and temperature is avoided, and the moisture resistance is as high as 85%.

Preferably, the aerobic device is provided with several oxygen delivery pathways.

Preferably, the tail end of the oxygen delivery passage is provided with an arc-shaped plate with a through hole, and the arc-shaped plate is opposite to the strip, so that the strip can absorb oxygen fully.

Preferably, each winding mechanism is a plurality of winding guide wheels; the vertical direction of the winding of the strip is as high as possible, so that the time for the strip to stay in the annealing cavity is prolonged, and the annealing is sufficient.

Preferably, a plurality of direction guide wheels are arranged in the strip placing chamber.

Preferably, the strip outlet of the coating cavity and the strip inlet of the annealing cavity are both provided with a direction guide wheel.

The invention has the advantages that:

1. the high-temperature superconducting strip coating and heat treatment are synchronously carried out, the automation degree is high, and the procedures and flow steps are reduced;

2. the active oxygen is adopted for heat treatment, so that the heat treatment time is shortened, and the annealing efficiency is greatly improved;

3. the ceramic plate on the wall of the annealing cavity can effectively maintain the temperature in the cavity, ensure the full annealing and prevent the wall of the annealing cavity from blackening due to high-temperature oxygen introduction;

4. the added vacuum unit can effectively maintain the vacuum degree in the coating cavity and reduce the gas in the annealing cavity from flowing back to the coating cavity due to pressure difference, thereby influencing the coating quality of the strip;

5. promote work efficiency, shorten man-hour, reduce the damage that cost and artificial misoperation brought, practice thrift the cost, high-usage and environmental protection.

Drawings

The invention is further described with reference to the following figures and examples:

FIG. 1 is a schematic view of a multi-winding apparatus for superconducting tape coating and heat treatment;

FIG. 2 is a schematic view of a multi-winding apparatus for superconducting tape coating and heat treatment according to the present invention;

FIG. 3 is a schematic front view of an arc-shaped plate of a through hole of a multi-pass winding device for integrating superconducting tape coating and heat treatment;

FIG. 4 is a schematic top view of an arc-shaped plate of a through hole of a multi-pass winding device for superconducting tape coating and heat treatment;

wherein: 1. a strip placement chamber; 2. a film coating chamber; 3. an annealing chamber; 4. an aerobic plant; 5. a temperature control device; 6. a direction guide wheel; 7. a strip of material; 11. an unwinding device; 12. a winding device; 13. unwinding the coil opening; 14. a rolling opening; 21. a coating cavity strip outlet; 31. annealing a strip inlet; 32. a heat-insulating layer; 33. winding the guide wheel; 34. a vacuum unit a; 35. a vacuum unit b; 41. an oxygen delivery pathway; 42. an arc plate of the through hole.

Detailed Description