CN111361703A - Manufacturing process of air flow guide pipe of hovercraft - Google Patents
Manufacturing process of air flow guide pipe of hovercraft Download PDFInfo
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- CN111361703A CN111361703A CN202010190007.XA CN202010190007A CN111361703A CN 111361703 A CN111361703 A CN 111361703A CN 202010190007 A CN202010190007 A CN 202010190007A CN 111361703 A CN111361703 A CN 111361703A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000007689 inspection Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 20
- 238000012937 correction Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 claims description 4
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000003908 quality control method Methods 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims 1
- 238000011112 process operation Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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Abstract
The manufacturing process of the air flow guide pipe of the hovercraft comprises the following process steps: the method comprises the steps of manufacturing components, firstly, lofting according to a drawing line type on a component manufacturing platform, manufacturing and processing skin and blanking, assembling the components, vertically performing assembly on an assembly platform with the tail of a guide pipe facing downwards and the front edge of the guide pipe facing upwards, checking the integrity of the guide pipe by a quality guarantee part after the components are manufactured, checking data according to precision requirements, accurately measuring the size of the guide pipe, and checking and confirming ship inspection and military inspection. The air guide pipe manufactured by the process is simple in process operation and improves the processing efficiency.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of vehicles, in particular to a manufacturing process of an air flow guide pipe of a hovercraft.
[ background of the invention ]
The hovercraft is an important vehicle for sailing at high speed by forming an air cushion on the water surface or the ground by utilizing high-pressure air to lift part or all of a ship body so as to reduce the running resistance of the ship body. The air propeller is adopted to propel the air cushion vehicle, and the bottom of the air cushion vehicle leaves the water surface during navigation, so that the air cushion vehicle has better landing rapidity. In military affairs, the air cushion boat is the most ideal landing combat transportation equipment, the speed of land rushing to the beach is greatly improved due to high navigational speed and landing performance, the tactical abruptness is increased, and the air cushion boat is favorable for getting on and breaking suddenly. The cushion-lifting type hovercraft can sail on water and ice and snow, can land on interfaces such as beaches and the like, is parked at coastal islands without wharves, implements wharf-free uninterrupted logistics supply, and is beneficial to assault to depth; meanwhile, the boat is an ideal boat type for hunting and sweeping boats. In addition, the device can also be used for taking charge of patrol warning, transportation, emergency rescue and disaster relief and other tasks among shoals, beaches and islands. Hovercraft has thus found wide practical application.
An air guide pipe of a hovercraft is an important component of the hovercraft, and the existing air guide pipe is complex in manufacturing process and low in efficiency.
[ summary of the invention ]
In order to overcome the defects of the prior art, the invention provides the manufacturing process of the air guide pipe of the hovercraft, which is simple in process operation and capable of improving the production efficiency.
The technical scheme adopted by the invention is as follows: the manufacturing process of the air flow guide pipe of the hovercraft comprises the following process steps:
(1) the component manufacturing method comprises the steps that firstly, the component manufacturing platform is subjected to line layout according to a drawing, and the thickness of the skin is taken into consideration in the layout size of the annular component and the longitudinal wing component besides the pipeline diagram. The radius of the member of the inner circle of the guide pipe is the linear radius plus the thickness of the skin, and the radius of the member of the outer circle is the linear radius minus the thickness of the skin; the outer ring line shape near the bow end of the longitudinal airfoil section needs to be correspondingly processed according to the distance between the longitudinal airfoil section and a stern deck so as to meet the installation requirement of the guide pipe, and the specific method can be that the line shape of the station number from 3 to 19 on the y is straightened; further, the lofted line type preparation: the annular member and the longitudinal wing member, the catheter annular rib and the longitudinal wing rib are manufactured by firstly marking an annular rib line type or a longitudinal wing rib line type on a machining sample platform, and then carrying out hot machining on the annular material or the longitudinal wing rib to enable the annular material or the longitudinal wing rib to be matched with the line type on the sample platform. The annular members are four pieces, and in order to prevent the assembly error of the annular rib component parts and the convenience of construction, each annular member is determined with a color, and the parts forming the annular member are coated with the color determined by the annular member. Each annular rib part is marked with a different color. Marking the longitudinal wing components with numbers according to the numbers on the drawing; checking that the errors of parts such as a framework and the like are required to be 0 to +0.5mm after all the annular ribs and the longitudinal ribs are processed, simultaneously setting out the annular ribs and the longitudinal ribs on a working platform again, respectively marking out a total of five linear types of the roundness of the annular ribs of the catheter on the working platform, wherein each linear type is marked with the same color as the part;
(2) firstly, processing a double-curved-surface skin at the front edge of the guide pipe, wherein the skin is processed according to eight sections of the circumference of the guide pipe; the front edge skin lofting is used for manufacturing a sample plate according to a drawing, a wood mold is manufactured by using the sample plate, the wood mold is used for turning a cast iron mold, the iron mold is polished, the surface transition is smooth, the line type meets the requirement, and no obvious break point exists; the front edge skin is manufactured by eight equal parts, but margins are reserved on two sides during blanking and pressing, so that the subsequent splicing is facilitated, and the front edge skin aluminum material is pressed for heating; further, the inner skin and the outer skin are manufactured, the inner skin and the outer skin are lofted and unfolded according to a pipeline diagram of the conduit, the inner skin and the outer skin are blanked according to the lofted and unfolded size, and allowance is reserved during blanking, so that the problem that the material size is not enough during installation is avoided;
(3) assembling the components, namely, vertically assembling the components on an assembling platform by adopting a mode that the tail part of a guide pipe is downward and the front edge of the guide pipe is upward, further, marking an assembling and checking line on the assembling platform, wherein the radius of the checking line is 0.8-3mm smaller than that of an actual assembling line, namely, the inner diameter of the guide pipe without the thickness of a skin is reduced; further, the annular components are sequentially installed from tail to front by the catheter, and the installation sequence of the annular ribs is as follows: tail, 3#, 4# +200, the tolerance of the radius of the inner ring of the annular rib and the radius of the linear shape of the sample is 0-0.5 mm, if the radius exceeds the tolerance to be heated and corrected, the linear shape of the annular rib is mainly controlled to be matched with the linear shape on the working platform when the annular rib is installed on the working platform, and the inspection is carried out after the installation is finished; furthermore, when the longitudinal wing component is installed, the longitudinal wing component is matched with the line on the working platform, and when a little deviation exists, the inner side of the heating correction longitudinal wing rib is parallel to the inner ring of the annular rib. When the longitudinal wing ribs are installed, the distance between the annular ribs is mainly controlled, the central line of the guide pipe is vertically upward, the front edge of the guide pipe is upward, and structural integrity check and inspection are carried out after the longitudinal wing members are installed; furthermore, when the inner skin of the propeller working area is installed, the rib framework is taken as a reference line type, when the inner skin is not matched with the rib framework line type, the inner skin is heated and corrected, and then the inner skin is corrected when the inner skin is sealed. And adjusting the error when the last inner skin is installed. The inner skin is riveted on the working area of the propeller by adopting a countersunk screw. The rotating surface of the ducted propeller, the roundness of the ducted propeller, the coaxiality of a central line and the linear parameters of the ducted propeller are controlled within a precision range, and during installation, the surface is required to be smooth in transition, no obvious break point is required, and the correction temperature is not more than 400 ℃; further, installing a front edge skin, installing the processed front edge skin at the front edge of the catheter, paying attention to the joint, avoiding an internal framework and being easy to weld, performing fire correction on the front edge skin if the front edge skin is not matched with a component, ensuring that the temperature of the front edge skin matched with the fire correction is not more than 400 ℃, removing the allowance at the joint of the skin by using a plasma cutting machine, welding, polishing the flange on the surface of a welding line after the welding is qualified after inspection to be level with a base material, riveting the front edge skin with riveting positions of the inner skin and the outer skin by using countersunk head rivets when the front edge skin is installed, and requiring smooth surface transition and no obvious break point when the front edge skin is installed; further, the completeness and the firmness of the catheter structure are comprehensively checked to meet the requirements of a drawing, and the outer skin sealing plate can be carried out after the completeness and the firmness of the catheter structure are qualified through the report and check; further, when the outer skin is installed, the rib framework is taken as a reference line type, when the line type of the outer skin is not matched with that of the rib framework, heating correction installation is carried out, when the outer skin sealing plate is closed, a plurality of rivets adopt self-plugging rivets, but the self-plugging rivets with end sockets are also needed to be used to ensure weather tightness, and the installation requires smooth surface transition and no obvious break point; further, after the manufacturing is finished, the quality control part carries out integrity check on the conduit, checks data according to precision requirements, accurately measures the dimension of the conduit, and reports for inspection and confirmation to ship inspection and military inspection after the conduit is qualified.
The invention has the beneficial effects that: the air guide pipe manufactured by the process is simple to operate and improves the processing efficiency.
For a better understanding of the features and technical content of the present invention, reference should be made to the embodiments of the present invention, which are provided for reference and illustration purposes only and are not intended to limit the present invention.
[ detailed description ] embodiments
The invention is further illustrated by the following examples:
embodiment 1, a hovercraft air guide pipe manufacturing process, comprising the following process steps: firstly, setting out a layout according to a drawing line type on a component manufacturing platform, wherein the setting out sizes of an annular component and a longitudinal wing component are according to a conduit line type drawing, and the thickness of a skin is also considered; the outer ring line type of the bow end part near the longitudinal wing section needs to be correspondingly processed according to the distance between the outer ring line type and a stern deck so as to meet the installation requirement of the guide pipe, and the specific method can be that the line type of the station number from 3 to 19 on the y is straightened; further, the lofted line type preparation: the method comprises the steps of manufacturing an annular member and a longitudinal wing member, and manufacturing an annular rib and a longitudinal wing rib of a catheter, marking an annular rib line type or a longitudinal wing rib line type on a machining sample table, and then carrying out hot machining on an annular material or the longitudinal wing rib to enable the annular material or the longitudinal wing rib to be matched with the line type on the sample table. The annular members are four pieces, and in order to prevent the assembly error of the annular rib component parts and the convenience of construction, each annular member is determined with a color, and the parts forming the annular member are coated with the color determined by the annular member. Each annular rib part is marked with a different color. Marking the longitudinal wing components with numbers according to the numbers on the drawing; checking that the errors of parts such as a framework and the like are required to be 0 to +0.5mm after all the annular ribs and the longitudinal ribs are processed, simultaneously setting out the annular ribs and the longitudinal ribs on a working platform again, respectively marking out a total of five linear shapes of the roundness of the annular ribs of the catheter on the working platform, wherein each linear shape is marked with the same color as a part;
firstly, processing a double-curved-surface skin at the front edge of the guide pipe, wherein the skin is processed according to eight sections of the circumference of the guide pipe; the front edge skin lofting is used for manufacturing a sample plate according to a drawing, a wood mold is manufactured by using the sample plate, the wood mold is used for reproducing a cast iron mold, the iron mold is polished, the surface transition is smooth, the line type meets the requirement, and no obvious break point exists; the front edge skin is manufactured by eight equal parts, but margins are reserved on two sides during blanking and pressing, so that the subsequent splicing is facilitated, and the front edge skin aluminum material is pressed for heating; further, the inner skin and the outer skin are manufactured, the inner skin and the outer skin are lofted and unfolded according to a pipeline diagram of the conduit, the inner skin and the outer skin are blanked according to the lofted and unfolded size, and allowance is reserved during blanking, so that the situation that the material size is not enough during installation is avoided;
assembling the components, namely, vertically assembling the components on an assembling platform by adopting a mode that the tail part of the conduit is downward and the front edge of the conduit is upward, further, marking an assembling inspection line on the assembling platform, wherein the radius of the inspection line is 0.8-3mm smaller than that of an actual assembling line, namely, the inner diameter of the conduit with the thickness of the coating removed is 0.8-3 mm; further, the annular components are sequentially installed from tail to front by the catheter, and the installation sequence of the annular ribs is as follows: tail, 3#, 4# +200, the tolerance of the radius of the inner ring of the annular rib and the radius of the lofted line is 0-0.5 mm, if the radius exceeds the radius to be corrected by heating, the line type of the annular rib is mainly controlled to be matched with the line type on the working platform when the annular rib is installed on the working platform, and the inspection is carried out after the installation is finished; furthermore, when the longitudinal wing component is installed, the longitudinal wing component is matched with the line on the working platform, and when a little deviation exists, the inner side of the heating correction longitudinal wing rib is parallel to the inner ring of the annular rib. When the longitudinal wing ribs are installed, the distance between the annular ribs is mainly controlled, the central line of the guide pipe is vertically upward, the front edge of the guide pipe is upward, and structural integrity is checked and checked after the longitudinal wing members are installed; furthermore, when the inner skin of the working area of the propeller is installed, the rib framework is taken as a reference line type, when the inner skin is not matched with the line type of the rib framework, the inner skin is heated and corrected, and then the inner skin is corrected according to the heating and correction when the inner skin is closed. And adjusting the error when the last inner skin is installed. The inner skin is riveted on the working area of the propeller by adopting a countersunk screw. The rotating surface of the ducted propeller, the roundness of the ducted propeller, the coaxiality of a central line and the linear parameters of the ducted propeller are controlled within a precision range, and during installation, the surface is required to be smooth in transition, no obvious break point is required, and the correction temperature is not more than 400 ℃; further, installing a front edge skin, installing the processed front edge skin at the front edge of the catheter, paying attention to the joint, avoiding an internal framework and being easy to weld, performing flame correction on the front edge skin if the front edge skin is not matched with a component, so that the temperature of the front edge skin matched with the flame correction is not more than 400 ℃, removing the allowance at the joint of the skins by using a plasma cutting machine, welding, polishing the flange on the surface of the welding line to be flat with a base material after the welding is finished and qualified, riveting the front edge skin with the riveting positions of the inner skin and the outer skin by using a countersunk head rivet when the front edge skin is installed, and requiring smooth surface transition without obvious folding points when the front edge skin is installed; further, the completeness and the firmness of the structure of the guide pipe are comprehensively checked to meet the requirements of a drawing, and the outer skin sealing plate can be carried out after the completeness and the firmness of the structure of the guide pipe are qualified through the report and check; further, when the outer skin is installed, the rib framework is taken as a reference line type, when the outer skin is not matched with the rib framework line type, heating correction installation is carried out, when the outer skin sealing plate is closed, a plurality of rivets adopt self-plugging rivets, but the self-plugging rivets with end sockets are also needed to be used to ensure weather tightness, and the installation requires smooth surface transition and no obvious folding point; further, after the manufacturing is finished, the quality control part carries out integrity check on the conduit, checks data according to precision requirements, accurately measures the dimension of the conduit, and reports for inspection and confirmation to ship inspection and military inspection after the conduit is qualified.
The air guide pipe manufactured by the process is simple in process operation and improves the processing efficiency.
However, the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and various modifications and applications made by the above embodiments are within the scope of the present invention.
Claims (1)
1. The manufacturing process of the air guide pipe of the hovercraft is characterized by comprising the following process steps:
(1) firstly, setting out a layout according to a drawing line type on a component manufacturing platform, wherein the setting out sizes of an annular component and a longitudinal wing component are according to a conduit line type drawing, and the thickness of a skin is also considered; the outer ring line type of the bow end part near the longitudinal wing section needs to be correspondingly processed according to the distance between the line type and the stern deck so as to meet the installation requirement of the guide pipe, and the specific method can be that the line type of the station number from 3 to 19 on the y is straightened; further, the lofted line type preparation: the annular member and the longitudinal wing member, and the conduit annular rib and the longitudinal wing rib are manufactured by firstly marking an annular rib line type or a longitudinal wing rib line type on a processing sample platform, and then carrying out hot processing on the annular material or the longitudinal wing rib to ensure that the annular material or the longitudinal wing rib is matched with the line type on the sample platform. The annular members are four, in order to prevent the assembly of parts consisting of the annular ribs from being mistaken and the convenience of construction, each annular member determines a color, the parts forming the annular members are coated with the color determined by the annular members, each annular rib part is marked with different colors, and the longitudinal wing members are marked with numbers according to the numbers on the drawing; checking that the errors of parts such as a framework and the like are required to be 0 to +0.5mm after all the annular ribs and the longitudinal ribs are processed, simultaneously setting out the annular ribs and the longitudinal ribs on a working platform again, firstly marking out five linear types of the roundness of the annular ribs of the catheter on the working platform respectively, and marking each linear type with the same color as a part;
(2) firstly, processing a double-curved-surface skin at the front edge of the guide pipe, wherein the skin is processed according to eight sections of the circumference of the guide pipe; the front edge skin lofting is used for manufacturing a sample plate according to a drawing, a wood mold is manufactured by using the sample plate, the wood mold is used for reproducing a cast iron mold, the iron mold is polished, the surface transition is smooth, the line type meets the requirement, and no obvious break point exists; the front edge skin is manufactured by eight equal parts, but margins are reserved on two sides during blanking and pressing, so that the subsequent splicing is facilitated, and the front edge skin aluminum material is pressed for heating; further, the inner skin and the outer skin are manufactured, the inner skin and the outer skin are lofted and unfolded according to a pipeline diagram of the conduit, the inner skin and the outer skin are blanked according to the lofted and unfolded size, and allowance is reserved during blanking, so that the situation that the material size is not enough during installation is avoided;
(3) assembling the components, namely, vertically assembling the components on an assembling platform by adopting a mode that the tail part of a guide pipe is downward and the front edge of the guide pipe is upward, further, marking an assembling and checking line on the assembling platform, wherein the radius of the checking line is 0.8-3mm smaller than that of an actual assembling line, namely, the inner diameter of the guide pipe without the thickness of a skin is reduced; further, the annular components are sequentially installed from tail to front by the catheter, and the installation sequence of the annular ribs is as follows: tail, 3#, 4# +200, the tolerance of the radius of the inner ring of the annular rib and the radius of the lofted line is 0-0.5 mm, if the radius exceeds the tolerance to be heated and corrected, the line type of the annular rib is mainly controlled to be matched with the line type on the working platform when the annular rib is installed on the working platform, and the inspection is carried out after the installation is finished; furthermore, when the longitudinal wing component is installed, the longitudinal wing component is matched with the line on the working platform, and when a little deviation exists, the inner side of the heating correction longitudinal wing rib is parallel to the inner ring of the annular rib. When the longitudinal wing ribs are installed, the distance between the annular ribs is mainly controlled, the center line of the guide pipe is vertically upward, the front edge of the guide pipe is upward, and structural integrity check and inspection are carried out after the longitudinal wing members are installed; furthermore, when the inner skin of the propeller working area is installed, the rib framework is taken as a reference line type, when the inner skin is not matched with the rib framework line type, the inner skin is heated and corrected, and then the inner skin is corrected when the inner skin is sealed. And adjusting the error when the last inner skin is installed, wherein the inner skin is riveted in a working area of the propeller by adopting a countersunk screw. The rotating surface of the ducted propeller, the roundness of the ducted propeller, the coaxiality of a central line and the linear parameters of the ducted propeller are controlled within a precision range, and during installation, the surface is required to be smooth in transition, no obvious break point is required, and the correction temperature is not more than 400 ℃; further, installing a front edge skin, installing the processed front edge skin at the front edge of the catheter, paying attention to the joint, avoiding an internal framework and being easy to weld, performing flame correction on the front edge skin if the front edge skin is not matched with a component, so that the temperature of the front edge skin matched with the flame correction is not more than 400 ℃, removing the allowance at the joint of the skins by using a plasma cutting machine, welding, polishing the flange on the surface of a welding line after the welding is qualified after inspection to be level with a base material, riveting the front edge skin with the riveting position of the inner skin and the outer skin by using a countersunk rivet when the front edge skin is installed, and requiring smooth surface transition and no obvious break point when the front edge skin is installed; further, the integrity and the firmness of the catheter structure are comprehensively checked to meet the requirements of a drawing, and the outer skin sealing plate can be carried out after the integrity and the firmness of the catheter structure are qualified through the report and check; further, when the outer skin is installed, the rib framework is taken as a reference line type, when the outer skin is not matched with the rib framework line type, the outer skin is heated, corrected and installed, when the outer skin sealing plate is closed, a plurality of rivets adopt self-plugging rivets, but the self-plugging rivets with end sockets are also needed to be used to ensure weather tightness, and the installation requires smooth surface transition and no obvious break point; further, after the manufacturing is finished, the quality control part carries out integrity check on the conduit, checks data according to precision requirements, accurately measures the dimension of the conduit, and reports for inspection and confirmation to ship inspection and military inspection after the conduit is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190007.XA CN111361703B (en) | 2020-03-18 | 2020-03-18 | Manufacturing process of air flow guide pipe of hovercraft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190007.XA CN111361703B (en) | 2020-03-18 | 2020-03-18 | Manufacturing process of air flow guide pipe of hovercraft |
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| CN111361703A true CN111361703A (en) | 2020-07-03 |
| CN111361703B CN111361703B (en) | 2021-09-21 |
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| CN202010190007.XA Expired - Fee Related CN111361703B (en) | 2020-03-18 | 2020-03-18 | Manufacturing process of air flow guide pipe of hovercraft |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112339298A (en) * | 2021-01-11 | 2021-02-09 | 中国人民解放军国防科技大学 | Large-size barrel forming method |
| CN112872753A (en) * | 2021-01-11 | 2021-06-01 | 中国人民解放军国防科技大学 | Assembling method for DG device of hovercraft |
| CN114940253A (en) * | 2022-05-26 | 2022-08-26 | 中国船舶科学研究中心 | Light composite structure catheter and manufacturing method thereof |
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| CN112339298A (en) * | 2021-01-11 | 2021-02-09 | 中国人民解放军国防科技大学 | Large-size barrel forming method |
| CN112872753A (en) * | 2021-01-11 | 2021-06-01 | 中国人民解放军国防科技大学 | Assembling method for DG device of hovercraft |
| CN114940253A (en) * | 2022-05-26 | 2022-08-26 | 中国船舶科学研究中心 | Light composite structure catheter and manufacturing method thereof |
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