CN106270958A - Stainless steel clad plate manufactures the welding procedure of vertical storage tank - Google Patents
Stainless steel clad plate manufactures the welding procedure of vertical storage tank Download PDFInfo
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- CN106270958A CN106270958A CN201610828852.9A CN201610828852A CN106270958A CN 106270958 A CN106270958 A CN 106270958A CN 201610828852 A CN201610828852 A CN 201610828852A CN 106270958 A CN106270958 A CN 106270958A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
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- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention discloses a kind of stainless steel clad plate and manufactures the welding procedure of vertical storage tank, comprises the following steps: 1) with hot-rolled stainless steel composite board as material, composite plate thickness is 1mm ~ 10mm；2) welding of base plate: use overlap joint single-sided welding, first welds a piece of stainless steel at lower floor's stainless steel surfaces, then fills by rustless steel arc welding on its both sides；3) welding of top board；4) welding of tank skin: be applied in combination with arc welding and argon arc welding, first uses carbon steel bottom argon arc welding, then uses rustless steel arc welding, welds inner surface；5) roll bending and coaming plate: first offer opening, uniform and abhiseca surrounding at tank deck, then weld pole on tank bottom, pole connects calabash lifting, carries out roll bending and coaming plate；6) weld and connect: after above-mentioned process, welding top angle and tank skin and the connection of abhiseca, and go up remaining tank skin successively；7) install；The present invention has performance height, safety height, low cost of manufacture, corrosion resistant advantage.
Description
Technical field
The present invention relates to a kind of vertical storage tank, be specifically related to a kind of stainless steel clad plate and manufacture the Welder of vertical storage tank
Skill.
Background technology
Along with the development of China's economy, chemical industry is just obtaining great development, output of chemical produt and sales volume the most year by year
Increasing, correspondingly, also need to increase the newest storage and handling facility year by year, being directed to corrosive media such as soda acid needs with resistance to
The stronger stainless steel storage tank of corrosivity stores and transport, and stainless steel clad plate a kind of have substitute corrosion resistant plate prospect
Suitable new material, this material price is relatively low, uses it to build storage tank, and its construction cost is lower by more than 35% than stainless steel storage tank,
And it has nearly all key properties such as corrosion-resistant, intensity good, the life-span length that stainless steel storage tank has equally, can effectively subtract
The construction cost of few corrosion-resistant chemicals storage tank.
Even if so, stainless steel clad plate accumulator tank there is also performance and safety issue because of Welding Problems, relates to especially
And corrosive medium such as soda acid needs, safety high by performance and the stronger stainless steel storage tank of corrosion resistance to store and transport, and
The security performance of this type of accumulator tank is particularly important.
Summary of the invention
The present invention solves above-mentioned technical problem provide a kind of performance height, safety height, low cost of manufacture, corrosion resistant one
Plant stainless steel clad plate and manufacture the welding procedure of vertical storage tank.
The present invention solves that the scheme that above-mentioned technical problem is taked is: stainless steel clad plate manufactures the welding of vertical storage tank
Technique, comprises the following steps:
With hot-rolled stainless steel composite board as material, composite plate thickness is 1mm ~ 10mm, and Hot rolling manufactures stainless steel clad plate to be had
The spy that low cost, combined efficiency height, function admirable, plate face width degree and length are big, clad stainless steel layer thickness is little, the manufacturing cycle is short
Point, size and its according to tank body are to corrosive requirement simultaneously, can select different carbon steels and the combination of rustless steel thickness,
The requirement meeting its safety and performance is issued to Best Economy；
The welding of base plate: use overlap joint single-sided welding, first weld a piece of stainless steel at lower floor's stainless steel surfaces, then on its both sides
Fill by rustless steel arc welding, increase piece of stainless steel, decrease rustless steel and carbon steel both different materials welding butt welded seam is strong
The impact of degree, decreases the dilution of weld seam；
The welding of top board；
The welding of tank skin: be applied in combination with arc welding and argon arc welding, first uses carbon steel bottom argon arc welding, then uses rustless steel arc welding,
Welding inner surface；
Roll bending and coaming plate: first offer opening, uniform and abhiseca surrounding at tank deck, then on tank bottom, weld pole, on pole
Connect calabash lifting, carry out roll bending and coaming plate；
Welding and connection: after above-mentioned process, welding top angle and tank skin and the connection of abhiseca, and go up remaining tank successively
Wall；
Install: pipe laying, adnexa；
Wherein, in the welding of tank skin, with bottom argon arc welding, cladding uses rustless steel arc welding to carry out multiple tracks and swings welding, with
Time welding process in heating welding rod be stirred, speed of welding is 12cm/min, the welding current mistake of rustless steel arc welding
Crossing a layer 90A, cladding 95A, weldingvoltage transition zone 22V, cladding 22V, the thickness of cladding rustless steel arc welding is hot-rolled stainless steel
The 1/6 of composite plate thickness, meanwhile, is stirred the welding rod of heating with agitating device in welding process, makes the metal in molten bath
Uniformly merge, reduce welding stress；Welding employing welding current transition zone 90A, cladding 95A, weldingvoltage transition zone 22V is multiple
Layer 22V, hence it is evident that improve weld strength, make weld fastness significantly promote, Experimental comparison results's such as table 1 below:
The common welding current of table 1 and welding current contrast and experiment of the present invention
| Weld strength | Welding density | |
| Common welding current | Typically | On the low side |
| Welding current uses transition zone 90A, cladding 95A, weldingvoltage transition zone 22V, cladding 22V | High | High |
Welding compound employed in welding step includes following component and component: granule exists at 20 ~ 100 mesh Cu 100 parts, granule
50 ~ 60 mesh Sn 40 ~ 60 parts, granule at 80 ~ 200 Zn 5 ~ 40 parts, granule in 20 ~ 100 Ni20 ~ 50 part, granule is 80 ~ 150
Mn 5 ~ 60 parts, tungsten oxide 0.1 ~ 10 part, 0,1 ~ 10 part of argentum powder, 0,1 ~ 3 part of carbon；Along with the addition of bonding machine, it is effectively improved welding
Position metal relative density, hardness, along with the rising of compactness, thus improve the intensity of welding position, wherein tungsten oxide, silver
Powder and the addition of carbon, can efficiently avoid the cellular phenomenon within joint, makes the welding fastness of joint significantly promote, system
The vertical storage tank life-span also relative growth become, because the mechanism of action is still not clear but, or because synergism produces beyond thought effect,
Experimental result is still to be tested.
For optimizing technique scheme, the measure taked also includes: with manufacturing tank shell and the hot-rolled stainless steel of tank deck plate
Composite plate thickness is 1 ~ 8+1mm；It is (1 ~ 8+1)+1mm for manufacturing the hot-rolled stainless steel composite board thickness of tank bottom, can strengthen
Tank body performance, structure more consolidates safety, reduces cost simultaneously.
Preferably, the hot-rolled stainless steel composite board thickness with manufacture tank shell and tank deck plate is 5+1mm；Tank bottoms for manufacturing
The hot-rolled stainless steel composite board thickness of plate is (5+1)+1mm.
Or, it is 7+1mm with the hot-rolled stainless steel composite board thickness of manufacture tank shell and tank deck plate；For manufacturing tank bottom
Hot-rolled stainless steel composite board thickness be (7+1)+1mm.
Or, it is 4+1mm with the hot-rolled stainless steel composite board thickness of manufacture tank shell and tank deck plate；For manufacturing tank bottom
Hot-rolled stainless steel composite board thickness be (4+1)+1mm.
In the welding step of base plate, use overlap joint single-sided welding, and in weld edge 15 ~ 25cm docking welding, open V-type slope
Mouthful.
For optimizing technique scheme, the measure taked also includes: in the welding step of base plate, uses overlap joint single welding
Connecing, and in weld edge 20cm docking welding, open double V-groove, bevel angle is 60 degree, and root gap is that hot-rolled stainless steel is combined
The 1/3 of plate thickness, under this scope, by bevel angle and the control of root gap, is effectively increased welded seal, and
Strengthen tank body safety.
In the welding step of tank skin, using overlap joint two-sided welding, with cover top surface for all welding, lower surface is for being interrupted
Welding, upper and lower surface separately welding, well evade normal welding and the problem that causes the poor performance of tank skin.
In welding and Connection Step, using I type groove with beneath angle welding, use two-sided welding, angle welding weldment welds
Seam metal thickness, outside leg and inner side leg are all tank wall thickness, are effectively improved tank body performance and safety.
In welding and Connection Step, tank body 2F district uses rustless steel arc welding, and speed of welding is 10cm/min ~ 15cm/
Min, welding current 90A ~ 110A, weldingvoltage 22V ~ 24V；Tank body 3G district uses carbon steel arc welding, and speed of welding is 6cm/min
~ 15cm/min, welding current 90A ~ 110A, weldingvoltage 20V ~ 24V, make tank body safety and performance promote further.
Compared with prior art, the present invention strengthens the property of vertical storage tank by changing the selection of vertical storage tank material material
Can, because of its Hot rolling have low cost, combined efficiency height, function admirable, plate face width degree and length greatly, clad stainless steel layer thickness
The feature that little, the manufacturing cycle is short, size and its according to tank body, to corrosive requirement, can select different carbon steel and stainless
The combination of steel thickness, the requirement meeting its safety and performance is issued to Best Economy；Promote vertical because of welding procedure again
The safety of storage tank, welding uses welding current transition zone 90A, and cladding 95A, weldingvoltage transition zone 22V, cladding 22V, with routine
Technology is compared, and present invention welding is effectively improved joint fastness, thus improves its security performance, and extends its service life, has
Effect has evaded the weakness that vertical storage tank security performance is low, has done preservative treatment on tank skin surface simultaneously, has been prevented effectively from and relates to soda acid
Transport and storage etc. corrosive medium.
Accompanying drawing explanation
Fig. 1 is the base plate paving figure of the present invention；
Fig. 2 is the top board laying figure of the present invention；
Fig. 3 is the pole welding schematic diagram of the present invention；
Fig. 4 is the bevel for welding schematic diagram of the present invention；
Fig. 5 is the angle welding structural representation of the present invention；
Fig. 6 is the tank skin welding schematic diagram of the present invention；
Fig. 7 is the tank bottoms welding schematic diagram of the present invention；
Fig. 8 is the tank deck welding schematic diagram of the present invention.
Specific embodiment
Hereinafter knot and drawings and Examples are described in further detail:
Embodiment 1:
Stainless steel clad plate manufactures the welding procedure of vertical storage tank, comprises the following steps:
With hot-rolled stainless steel composite board as material, composite plate thickness is 1mm ~ 10mm；
The welding of base plate: use overlap joint single-sided welding, first weld a piece of stainless steel at lower floor's stainless steel surfaces, then on its both sides
Fill by rustless steel arc welding, increase piece of stainless steel, decrease rustless steel and carbon steel both different materials welding butt welded seam is strong
The impact of degree, decreases the dilution of weld seam；
The welding of top board；
The welding of tank skin: be applied in combination with arc welding and argon arc welding, first uses carbon steel bottom argon arc welding, then uses rustless steel arc welding,
Welding inner surface；
Roll bending and coaming plate: first offer opening, uniform and abhiseca surrounding at tank deck, then on tank bottom, weld pole, on pole
Connect calabash lifting, carry out roll bending and coaming plate；
Welding and connection: after above-mentioned process, welding top angle and tank skin and the connection of abhiseca, and go up remaining tank successively
Wall；
Install: pipe laying, adnexa；
Wherein, in the welding of tank skin, with bottom argon arc welding, cladding uses rustless steel arc welding to carry out multiple tracks and swings welding, with
Time welding process in heating welding rod be stirred, speed of welding is 12cm/min, the welding current mistake of rustless steel arc welding
Crossing a layer 90A, cladding 95A, weldingvoltage transition zone 22V, cladding 22V, the thickness of cladding rustless steel arc welding is hot-rolled stainless steel
The 1/6 of composite plate thickness.
Welding compound employed in welding step includes following component and component: granule is 20 ~ 100 mesh Cu 100 part,
Grain at 50 ~ 60 mesh Sn 40 ~ 60 parts, granule at 80 ~ 200 Zn 5 ~ 40 parts, granule in 20 ~ 100 Ni20 ~ 50 part, granule 80 ~
150 Mn 5 ~ 60 parts, tungsten oxide 0.1 ~ 10 part, 0,1 ~ 10 part of argentum powder, 0,1 ~ 3 part of carbon.
For optimizing technique scheme, the measure taked also includes: with manufacturing tank shell and the hot-rolled stainless steel of tank deck plate
Composite plate thickness is 1 ~ 8+1mm；It is (1 ~ 8+1)+1mm for manufacturing the hot-rolled stainless steel composite board thickness of tank bottom.
Preferably, the hot-rolled stainless steel composite board thickness with manufacture tank shell and tank deck plate is 5+1mm；Tank bottoms for manufacturing
The hot-rolled stainless steel composite board thickness of plate is (5+1)+1mm.
Or, it is 7+1mm with the hot-rolled stainless steel composite board thickness of manufacture tank shell and tank deck plate；For manufacturing tank bottom
Hot-rolled stainless steel composite board thickness be (7+1)+1mm.
Or, it is 4+1mm with the hot-rolled stainless steel composite board thickness of manufacture tank shell and tank deck plate；For manufacturing tank bottom
Hot-rolled stainless steel composite board thickness be (4+1)+1mm.
In the welding step of base plate, use overlap joint single-sided welding, and in weld edge 15 ~ 25cm docking welding, open V-type slope
Mouthful.
For optimizing technique scheme, the measure taked also includes: in the welding step of base plate, uses overlap joint single welding
Connecing, and in weld edge 20cm docking welding, open double V-groove, bevel angle is 60 degree, and root gap is that hot-rolled stainless steel is combined
The 1/3 of plate thickness,.
In the welding step of tank skin, using overlap joint two-sided welding, with cover top surface for all welding, lower surface is for being interrupted
Welding, upper and lower surface separately welding,.
In welding and Connection Step, using I type groove with beneath angle welding, use two-sided welding, angle welding weldment welds
Seam metal thickness, outside leg and inner side leg are all tank wall thickness,.
In welding and Connection Step, tank body 2F district uses rustless steel arc welding, and speed of welding is 10cm/min ~ 15cm/
Min, welding current 90A ~ 110A, weldingvoltage 22V ~ 24V；Tank body 3G district uses carbon steel arc welding, and speed of welding is 6cm/min
~ 15cm/min, welding current 90A ~ 110A,.
Embodiment 2:
The laying of tar sand, for small-sized acclive storage tank, first makes a length of tank bottoms radius, the three of a height of gradient centre-height
Angle bar block, intersects to form a sector region with two pieces during asphalt sand, and subregion is laid, and the method is simple,
It is applicable to miniaturization mechanical work.
Make the storage tank of 500 cubic metres, manufacture tank shell and tank deck plate with the hot-rolled stainless steel composite board of 5+1mm, with 6
The hot-rolled stainless steel composite board of+1mm manufactures tank bottom.As it is shown in figure 1, the laying of base plate and welding, owing to being that rustless steel is combined
Plate storage tank, is mainly used in storing the bigger material of corrosivity, so volume will not be very big, the thickness of steel plate also will not the thickest in order to
Safety and economy, we are tank bottoms uses overlap joint single-sided welding.As in figure 2 it is shown, during Han Jie, we are the most stainless in lower floor
Steel surface soldered one fritter piece of stainless steel, then at its both sides rustless steel electric arc welding, so ensure that surface is all rustless steel
Material, simultaneously because increase piece of stainless steel, decreases rustless steel and the shadow of carbon steel both different materials welding butt welded seam intensity
Ring, decrease the dilution of weld seam.As it is shown in fig. 7, the laying of top board uses overlap joint welding equally, as shown in Figure 3.Use simultaneously
Two-sided welding, outside weld welds employing carbon steel arc welding entirely, and weld joint on inner side uses and is interrupted rustless steel electric arc welding.As shown in Figure 8,
The welding of tank skin uses arc welding and argon arc welding to be applied in combination, and first uses carbon steel bottom argon arc welding, then uses rustless steel arc welding, welding
Inner surface.Outer surface carbon arc air gouging and grinder buffing, then use carbon steel electric arc welding.As shown in Figure 6.Equal in the surrounding of tank deck
The even storage tank opening several openings (number of opening is determined) example 500 cubic metres according to the size of tank, we open 6 openings.
Pole on welding on base plate, pole connects calabash, tank deck is lifted by crane.With crane, wallboard is carried out roll bending and encloses after lifting
Plate, after coaming plate completes, welding top angle and tank skin and the connection of tank deck, weld corresponding adnexa at tank deck after having welded
(roof manhole, dip hatch etc.), goes up remaining wallboard the most successively, as it is shown on figure 3, we adopt for beneath angle welding
With I type groove, two-sided welding, angle welding weldment weld metal thickness, outside leg and inner side leg are all tank wall thickness.Often
Last layer tank skin just carries out first anticorrosion to tank skin surface, as use epoxy resin composite material coating, epoxy novolac coating,
Polymer composite coating, finally installs corresponding pipeline, adnexa and anticorrosion.
Embodiment 3:
With steel essence mix earth for manufacture vertical storage tank material, ibid, therefore not to repeat here for manufacturing process.
Pipe has combined preferred embodiment and has described the present invention, and so it is not limited to the present invention, any this area skill
Art personnel, without departing from the spirit and scope of the present invention, it is possible to the theme here listed is implemented various changes,
The displacement of coordinate and amendment, therefore protection scope of the present invention is when the claim restriction depending on being proposed is in the range of standard.
Claims (8)
1. stainless steel clad plate manufactures the welding procedure of vertical storage tank, it is characterised in that following steps:
1) with hot-rolled stainless steel composite board as material, composite plate thickness is 1mm ~ 10mm；
2) welding of base plate: use overlap joint single-sided welding, first weld a piece of stainless steel at lower floor's stainless steel surfaces, then its two
While fill by rustless steel arc welding；
3) welding of top board；
4) welding of tank skin: be applied in combination with arc welding and argon arc welding, first uses carbon steel bottom argon arc welding, then uses rustless steel electric arc
Weldering, welds inner surface；
5) roll bending and coaming plate: first offer opening, uniform and abhiseca surrounding at tank deck, then weld pole, pole on tank bottom
On connect calabash lifting, carry out roll bending and coaming plate；
6) weld and connect: after above-mentioned process, welding top angle and tank skin and the connection of abhiseca, and go up remaining tank successively
Wall；
7) install: pipe laying, adnexa；
Wherein, in the welding of tank skin, with bottom argon arc welding, cladding uses rustless steel arc welding to carry out multiple tracks and swings welding, with
Time welding process in heating welding rod be stirred, speed of welding is 12cm/min, the welding current mistake of rustless steel arc welding
Crossing layer is 90A, and cladding is 95A, and weldingvoltage transition zone is 22V, and cladding is 22V, and the thickness of cladding rustless steel arc welding is heat
Roll the 1/6 of stainless steel clad plate thickness.
Stainless steel clad plate the most according to claim 1 manufactures the welding procedure of vertical storage tank, it is characterised in that: described weldering
Connect the welding compound employed in step and include following component and component: granule at 20 ~ 100 mesh Cu 100 parts, granule at 50 ~ 60 mesh
Sn 40 ~ 60 parts, granule at 80 ~ 200 Zn 5 ~ 40 parts, granule in 20 ~ 100 Ni20 ~ 50 part, granule is at 80 ~ 150 Mn 5 ~ 60
Part, tungsten oxide 0.1 ~ 10 part, 0,1 ~ 10 part of argentum powder, 0,1 ~ 3 part of carbon.
Stainless steel clad plate the most according to claim 1 manufactures the welding procedure of vertical storage tank, preferably it is characterized in that:
It is 1 ~ 8+1mm with the hot-rolled stainless steel composite board thickness of manufacture tank shell and tank deck plate；For manufacturing the hot-rolled stainless of tank bottom
Steel composite board thickness is (1 ~ 8+1)+1mm.
Stainless steel clad plate the most according to claim 1 manufactures the welding procedure of vertical storage tank, it is characterised in that: the described end
In the welding step of plate, use overlap joint single-sided welding, and in weld edge 15 ~ 25cm docking welding, open double V-groove.
Stainless steel clad plate the most according to claim 1 manufactures the welding procedure of vertical storage tank, it is preferred that its feature exists
In: in the welding step of described base plate, use overlap joint single-sided welding, and in weld edge 20cm docking welding, open double V-groove,
Bevel angle is 60 degree, and root gap is the 1/3 of hot-rolled stainless steel composite board thickness.
Stainless steel clad plate the most according to claim 1 manufactures the welding procedure of vertical storage tank, it is characterised in that: described tank
In the welding step of wall, using overlap joint two-sided welding, with cover top surface for all welding, lower surface is for being interrupted welding.
Stainless steel clad plate the most according to claim 1 manufactures the welding procedure of vertical storage tank, it is characterised in that: described
In welding and Connection Step, using T-shaped groove with beneath angle welding, use two-sided welding, angle welding weldment weld metal is thick
Degree, inner side leg are identical with outside leg thickness, radial legs a size of 1.0 ~ 3.0mm thickness.
Stainless steel clad plate the most according to claim 1 manufactures the welding procedure of vertical storage tank, it is characterised in that: described weldering
Connecing with in Connection Step, tank body 2F district uses rustless steel arc welding, and speed of welding is 10cm/min ~ 15cm/min, welding current
90A ~ 110A, weldingvoltage 22V ~ 24V；Tank body 3G district uses carbon steel arc welding, and speed of welding is 6cm/min ~ 15cm/min, weldering
Meet electric current 90A` ~ 110A, weldingvoltage 20V-24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610828852.9A CN106270958A (en) | 2016-09-19 | 2016-09-19 | Stainless steel clad plate manufactures the welding procedure of vertical storage tank |
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|---|---|---|---|
| CN201610828852.9A CN106270958A (en) | 2016-09-19 | 2016-09-19 | Stainless steel clad plate manufactures the welding procedure of vertical storage tank |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346110A (en) * | 2016-11-29 | 2017-01-25 | 西南石油大学 | Novel welding device and welding method of nickel-based composite pipe |
| CN108945846A (en) * | 2018-04-11 | 2018-12-07 | 浙江海洋大学 | Hot-rolled stainless steel composite board manufactures vertical storage tank |
| CN110026645A (en) * | 2019-04-10 | 2019-07-19 | 中广核研究院有限公司 | The T-type welding method and T connector of composite plate |
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| CN110026645A (en) * | 2019-04-10 | 2019-07-19 | 中广核研究院有限公司 | The T-type welding method and T connector of composite plate |
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Inventor after: Zhu Genmin Inventor after: Zhu Baikang Inventor after: Jin Yong Inventor after: Wang Cheng Inventor after: Shi Yingjie Inventor before: Zhu Genming Inventor before: Zhu Baikang Inventor before: Jin Yong Inventor before: Wang Cheng Inventor before: Shi Yingjie |
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Application publication date: 20170104 |