CN107199441A - A kind of manufacture method of composite metal plate - Google Patents
A kind of manufacture method of composite metal plate Download PDFInfo
- Publication number
- CN107199441A CN107199441A CN201710421285.XA CN201710421285A CN107199441A CN 107199441 A CN107199441 A CN 107199441A CN 201710421285 A CN201710421285 A CN 201710421285A CN 107199441 A CN107199441 A CN 107199441A
- Authority
- CN
- China
- Prior art keywords
- sheet metal
- metal component
- metal plate
- bending
- composite metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/04—Bending or folding of plates or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Laminated Bodies (AREA)
- Finishing Walls (AREA)
Abstract
The invention discloses a kind of manufacture method of composite metal plate, the manufacture method comprises the following steps：Sheet metal and lower sheet metal cutting stock in taking-up, processing obtain upper sheet metal component and lower sheet metal component provided with least three bending edges；The PVC film being adapted with upper sheet metal component and lower sheet metal component is bonded, the PVC film on bending edges is inwardly folded；Even spread adhesive for polyurethane, heating roll-in is compound to obtain composite metal plate part；Secondary bending and molding is carried out to composite metal plate part；Drilling processing is carried out to bending part using secondary process part；Drilled with drill bit in the secondary process piece and the bore region to be drilled；Bending part after drilling is obtained into composite metal plate in curing conservation.Smoothly, processing facility is cost-effective, is adapted to large-scale production, can be widely applied to the fields such as building curtain wall, interior decoration, light industry manufacture, Furniture manufacture for adhesion strength and mechanical performance that the composite metal plate of the present invention ensure that, firm stable and polishing.
Description
Technical field
The present invention relates to metallic plate processing technique field, and in particular to a kind of manufacture method of composite metal plate.
Background technology
With social progress and development, all kinds of mineral resources contradiction in short supply is increasingly protruded, particularly various valuable gold
Belong to resource.In this context, the utilization rate for how improving metals resources is just particularly important.In architectural decoration, light industry
Manufacturing, such as copper, stainless steel, titanium, titanium zinc, aluminium huge to all kinds of sheet metal demands.But it is existing in actual application
Technology is mainly for plate surface material characteristic and its thickness size is utilized, and this just brings nothing for bi-metal composite panel manufacturing industry
Limit chance.By compound to double-metal layer, retain the characteristic of facing metal material, bottom use common metal with increase thickness come
Use demand is met, precious metal resource can be greatlyd save, precious metal resource utilization is improved, national economy is influenceed to anticipate
Justice is far-reaching.
Existing composite metal plate mainly uses Explosion composite or method hot rolling, and the use of both production technologies is not only thrown
Money is huge, and there is the problem of environmental pollution is serious, and metal faced thickness can not be too thin, is typically both needed to be more than or waits
In 0.5mm, precious metal resource is wasted, cost has been saved.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art there is provided a kind of manufacture method of composite metal plate,
Employ the kinds of processes such as PVC film, adhesive for polyurethane, Bending Processing, low temperature roll-in be compound, it is ensured that the bonding of composite plate
Smoothly, processing facility is cost-effective, is adapted to large-scale production, can extensive use for intensity and mechanical performance, firm stable and polishing
In fields such as building curtain wall, interior decoration, light industry manufacture, Furniture manufactures.
The present invention solves technical problem and adopted the following technical scheme that：
A kind of manufacture method of composite metal plate, comprises the following steps：
Step one：Sheet metal and lower sheet metal cutting stock in taking-up, processing obtain upper provided with least three bending edges
Sheet metal component and lower sheet metal component；
Step 2：The PVC that the surface bonding of sheet metal component and lower sheet metal component is adapted with upper sheet metal component and lower sheet metal component on described
Film, the PVC film on bending edges is inwardly folded, that is, obtains on overlay film sheet metal component under sheet metal component and overlay film；
Step 3：On overlay film under the upper end of sheet metal component and overlay film sheet metal component lower end even spread adhesive for polyurethane, and
120~140 DEG C of heating roll-ins are compound to obtain composite metal plate part；
Step 4：Secondary bending and molding is carried out to composite metal plate part, while the PVC film at Adjacent fold side is pressed into after bending
Obtain bending part；
Step 5：Drilling processing is carried out to bending part using secondary process part, the hardness number of the secondary process piece is bending part
0.6~0.8 times of hardness number；Drilled with drill bit in the secondary process piece and the bore region to be drilled, the drill bit is in boring procedure
Rotating speed be 8000~10000 revs/min；
Step 6：Bending part after drilling is obtained into composite metal plate after 20~24 hours in 30~40 DEG C of curing conservations.
Preferably, the thickness of the upper metallic plate is 0.3~0.6mm, and the thickness of lower metallic plate is 1.2~1.6mm.
Preferably, the upper sheet metal component and lower sheet metal component that the step one is obtained need to use sand paper to carry out at surface grinding
Reason.
Preferably, the step 2 carries out the bonding of PVC film using vacuum coating machines.
Preferably, the step 3 heating roll-in separates control using temperature, each before and after sheet metal component under overlay film to divide 6
~10 segmentation heating regions, temperature-gradient method is to 120~140 DEG C step by step.
Preferably, the step 4 carries out secondary bending and molding using bender, and will folding on forcing press using mould
The microspike that crook is formed forms close fillet to press-in on the inside of bending part.
Preferably, the secondary process part is made up of aluminium alloy, and the thickness of the secondary process part is less than drilling region
Thickness.
Preferably, the step 5 drilling is carried out in rotatable support platform.
Compared with prior art, the present invention has following beneficial effect：
1. the manufacture method of the composite metal plate of the present invention, employs PVC film bonding, adhesive for polyurethane gluing, bending and adds
The kinds of processes such as work, the compound, auxiliary bore hole of low temperature roll-in, it is ensured that the adhesion strength and mechanical performance of composite plate, firm stable
And polishing is smooth, processing facility is cost-effective, is adapted to large-scale production, can be widely applied to building curtain wall, interior decoration, light
The fields such as work manufacture, Furniture manufacture.
2. the gluing technique of the adhesive for polyurethane of the present invention, can continuously be combined under normal temperature or low temperature, metal is protected
The original decoration performance on surface, can guarantee that compound adhesion intensity, prevents the entrance of air and moisture again；Bending Processing technique can
The gap filled up between bending part, holding surface it is smooth round and smooth；The auxiliary bore hole of secondary process piece has easily taken away hair
Pierce and the techniques such as polishing can be eliminated, improve hole quality, processing facility, beautiful decoration.
Embodiment
Invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1.
A kind of manufacture method of composite metal plate, comprises the following steps：
Step one：Sheet metal and lower sheet metal cutting stock in taking-up, processing obtain upper provided with least three bending edges
Sheet metal component and lower sheet metal component, reuse sand paper and carry out surface grinding processing；Wherein, the thickness of upper metallic plate is 0.3mm, lower metal
The thickness of plate is 1.3mm.
Step 2：The surface bonding of sheet metal component and lower sheet metal component is adapted with upper sheet metal component and lower sheet metal component on described
PVC film, the bonding of PVC film is carried out using vacuum coating machines, the PVC film on bending edges is inwardly folded, that is, covered
Sheet metal component under sheet metal component and overlay film on film；
Step 3：On overlay film under the upper end of sheet metal component and overlay film sheet metal component lower end even spread adhesive for polyurethane, and
120 DEG C of heating roll-ins are compound to obtain composite metal plate part；Heat roll-in and control is separated using temperature, before and after sheet metal component under overlay film
Each to divide 8 segmentation heating regions, temperature-gradient method is to 120 DEG C step by step.
Step 4：Secondary bending and molding is carried out to composite metal plate part, while the PVC film at Adjacent fold side is pressed into folding
Bending part is obtained after curved；Secondary bending and molding is carried out using bender, and formed bending part on forcing press using mould
Microspike forms close fillet to press-in on the inside of bending part.
Step 5：Drilling processing is carried out to bending part in rotatable support platform using secondary process part, it is described auxiliary
The hardness number for helping processing piece is 0.6 times of bending part hardness number；Drilled with drill bit in the secondary process piece and the bore region to be drilled,
Rotating speed of the drill bit in boring procedure is 10000 revs/min；Secondary process part is made up of aluminium alloy, and the secondary process part
Thickness be less than drilling region thickness.
Step 6：Bending part after drilling is obtained into composite metal plate after 22 hours in 30 DEG C of curing conservations.
Embodiment 2.
A kind of manufacture method of composite metal plate, comprises the following steps：
Step one：Sheet metal and lower sheet metal cutting stock in taking-up, processing obtain upper provided with least three bending edges
Sheet metal component and lower sheet metal component, reuse sand paper and carry out surface grinding processing；Wherein, the thickness of upper metallic plate is 0.5mm, lower metal
The thickness of plate is 1.5mm.
Step 2：The surface bonding of sheet metal component and lower sheet metal component is adapted with upper sheet metal component and lower sheet metal component on described
PVC film, the bonding of PVC film is carried out using vacuum coating machines, the PVC film on bending edges is inwardly folded, that is, covered
Sheet metal component under sheet metal component and overlay film on film；
Step 3：On overlay film under the upper end of sheet metal component and overlay film sheet metal component lower end even spread adhesive for polyurethane, and
128 DEG C of heating roll-ins are compound to obtain composite metal plate part；Heat roll-in and control is separated using temperature, before and after sheet metal component under overlay film
Each to divide 7 segmentation heating regions, temperature-gradient method is to 130 DEG C step by step.
Step 4：Secondary bending and molding is carried out to composite metal plate part, while the PVC film at Adjacent fold side is pressed into folding
Bending part is obtained after curved；Secondary bending and molding is carried out using bender, and formed bending part on forcing press using mould
Microspike forms close fillet to press-in on the inside of bending part.
Step 5：Drilling processing is carried out to bending part in rotatable support platform using secondary process part, it is described auxiliary
The hardness number for helping processing piece is 0.8 times of bending part hardness number；Drilled with drill bit in the secondary process piece and the bore region to be drilled,
Rotating speed of the drill bit in boring procedure is 9000 revs/min；Secondary process part is made up of aluminium alloy, and the secondary process part
Thickness is less than the thickness in drilling region.
Step 6：Bending part after drilling is obtained into composite metal plate after 24 hours in 36 DEG C of curing conservations.
Embodiment 3.
A kind of manufacture method of composite metal plate, comprises the following steps：
Step one：Sheet metal and lower sheet metal cutting stock in taking-up, processing obtain upper provided with least three bending edges
Sheet metal component and lower sheet metal component, reuse sand paper and carry out surface grinding processing；Wherein, the thickness of upper metallic plate is 0.4mm, lower metal
The thickness of plate is 1.3mm.
Step 2：The surface bonding of sheet metal component and lower sheet metal component is adapted with upper sheet metal component and lower sheet metal component on described
PVC film, the bonding of PVC film is carried out using vacuum coating machines, the PVC film on bending edges is inwardly folded, that is, covered
Sheet metal component under sheet metal component and overlay film on film；
Step 3：On overlay film under the upper end of sheet metal component and overlay film sheet metal component lower end even spread adhesive for polyurethane, and
135 DEG C of heating roll-ins are compound to obtain composite metal plate part；Heat roll-in and control is separated using temperature, before and after sheet metal component under overlay film
Each to divide 10 segmentation heating regions, temperature-gradient method is to 140 DEG C step by step.
Step 4：Secondary bending and molding is carried out to composite metal plate part, while the PVC film at Adjacent fold side is pressed into folding
Bending part is obtained after curved；Secondary bending and molding is carried out using bender, and formed bending part on forcing press using mould
Microspike forms close fillet to press-in on the inside of bending part.
Step 5：Drilling processing is carried out to bending part in rotatable support platform using secondary process part, it is described auxiliary
The hardness number for helping processing piece is 0.65 times of bending part hardness number；Bored with drill bit in the secondary process piece and the bore region to be drilled
Hole, rotating speed of the drill bit in boring procedure is 10000 revs/min；Secondary process part is made up of aluminium alloy, and the secondary process
The thickness of part is less than the thickness in drilling region.
Step 6：Bending part after drilling is obtained into composite metal plate after 22 hours in 35 DEG C of curing conservations.
Embodiment 4.
A kind of manufacture method of composite metal plate, comprises the following steps：
Step one：Sheet metal and lower sheet metal cutting stock in taking-up, processing obtain upper provided with least three bending edges
Sheet metal component and lower sheet metal component, reuse sand paper and carry out surface grinding processing；Wherein, the thickness of upper metallic plate is 0.38mm, lower gold
The thickness for belonging to plate is 1.37mm.
Step 2：The surface bonding of sheet metal component and lower sheet metal component is adapted with upper sheet metal component and lower sheet metal component on described
PVC film, the bonding of PVC film is carried out using vacuum coating machines, the PVC film on bending edges is inwardly folded, that is, covered
Sheet metal component under sheet metal component and overlay film on film；
Step 3：On overlay film under the upper end of sheet metal component and overlay film sheet metal component lower end even spread adhesive for polyurethane, and
138 DEG C of heating roll-ins are compound to obtain composite metal plate part；Heat roll-in and control is separated using temperature, before and after sheet metal component under overlay film
Each to divide 9 segmentation heating regions, temperature-gradient method is to 140 DEG C step by step.
Step 4：Secondary bending and molding is carried out to composite metal plate part, while the PVC film at Adjacent fold side is pressed into folding
Bending part is obtained after curved；Secondary bending and molding is carried out using bender, and formed bending part on forcing press using mould
Microspike forms close fillet to press-in on the inside of bending part.
Step 5：Drilling processing is carried out to bending part in rotatable support platform using secondary process part, it is described auxiliary
The hardness number for helping processing piece is 0.75 times of bending part hardness number；Bored with drill bit in the secondary process piece and the bore region to be drilled
Hole, rotating speed of the drill bit in boring procedure is 9500 revs/min；Secondary process part is made up of aluminium alloy, and the secondary process
The thickness of part is less than the thickness in drilling region.
Step 6：Bending part after drilling is obtained into composite metal plate after 20 hours in 40 DEG C of curing conservations.
Embodiment 5.
A kind of manufacture method of composite metal plate, comprises the following steps：
Step one：Sheet metal and lower sheet metal cutting stock in taking-up, processing obtain upper provided with least three bending edges
Sheet metal component and lower sheet metal component, reuse sand paper and carry out surface grinding processing；Wherein, the thickness of upper metallic plate is 0.3mm, lower metal
The thickness of plate is 1.6mm.
Step 2：The surface bonding of sheet metal component and lower sheet metal component is adapted with upper sheet metal component and lower sheet metal component on described
PVC film, the bonding of PVC film is carried out using vacuum coating machines, the PVC film on bending edges is inwardly folded, that is, covered
Sheet metal component under sheet metal component and overlay film on film；
Step 3：On overlay film under the upper end of sheet metal component and overlay film sheet metal component lower end even spread adhesive for polyurethane, and
129 DEG C of heating roll-ins are compound to obtain composite metal plate part；Heat roll-in and control is separated using temperature, before and after sheet metal component under overlay film
Each to divide 7 segmentation heating regions, temperature-gradient method is to 140 DEG C step by step.
Step 4：Secondary bending and molding is carried out to composite metal plate part, while the PVC film at Adjacent fold side is pressed into folding
Bending part is obtained after curved；Secondary bending and molding is carried out using bender, and formed bending part on forcing press using mould
Microspike forms close fillet to press-in on the inside of bending part.
Step 5：Drilling processing is carried out to bending part in rotatable support platform using secondary process part, it is described auxiliary
The hardness number for helping processing piece is 0.8 times of bending part hardness number；Drilled with drill bit in the secondary process piece and the bore region to be drilled,
Rotating speed of the drill bit in boring procedure is 10000 revs/min；Secondary process part is made up of aluminium alloy, and the secondary process part
Thickness be less than drilling region thickness.
Step 6：Bending part after drilling is obtained into composite metal plate after 23 hours in 35 DEG C of curing conservations.
The manufacture method of the composite metal plate of the present invention, employs PVC film bonding, adhesive for polyurethane gluing, bending
The kinds of processes such as processing, the compound, auxiliary bore hole of low temperature roll-in, it is ensured that the adhesion strength and mechanical performance of composite plate, it is firmly steady
It is fixed and polishing is smooth, processing facility, it is cost-effective, be adapted to large-scale production, can be widely applied to building curtain wall, interior decoration,
The fields such as light industry manufacture, Furniture manufacture.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, should be regarded as the present invention guarantor
Protect scope.
Claims (8)
1. a kind of manufacture method of composite metal plate, it is characterised in that comprise the following steps：
Step one：Sheet metal and lower sheet metal cutting stock in taking-up, processing obtain upper provided with least three bending edges
Sheet metal component and lower sheet metal component；
Step 2：The PVC that the surface bonding of sheet metal component and lower sheet metal component is adapted with upper sheet metal component and lower sheet metal component on described
Film, the PVC film on bending edges is inwardly folded, that is, obtains on overlay film sheet metal component under sheet metal component and overlay film；
Step 3：On overlay film under the upper end of sheet metal component and overlay film sheet metal component lower end even spread adhesive for polyurethane, and
120~140 DEG C of heating roll-ins are compound to obtain composite metal plate part；
Step 4：Secondary bending and molding is carried out to composite metal plate part, while the PVC film at Adjacent fold side is pressed into after bending
Obtain bending part；
Step 5：Drilling processing is carried out to bending part using secondary process part, the hardness number of the secondary process piece is bending part
0.6~0.8 times of hardness number；Drilled with drill bit in the secondary process piece and the bore region to be drilled, the drill bit is in boring procedure
Rotating speed be 8000~10000 revs/min；
Step 6：Bending part after drilling is obtained into composite metal plate after 20~24 hours in 30~40 DEG C of curing conservations.
2. the manufacture method of composite metal plate according to claim 1, it is characterised in that the thickness of the upper metallic plate is
0.3~0.6mm, the thickness of lower metallic plate is 1.2~1.6mm.
3. the manufacture method of composite metal plate according to claim 1, it is characterised in that the upper metal plate that the step one is obtained
Golden part and lower sheet metal component need to use sand paper to carry out surface grinding processing.
4. the manufacture method of composite metal plate according to claim 1, it is characterised in that the step 2 is covered using vacuum
Film machine carries out the bonding of PVC film.
5. the manufacture method of composite metal plate according to claim 1, it is characterised in that the step 3 heating roll-in is adopted
Separated and controlled with temperature, each before and after sheet metal component under overlay film to divide 6~10 segmentation heating regions, temperature-gradient method is to 120 step by step
~140 DEG C.
6. the manufacture method of composite metal plate according to claim 1, it is characterised in that the step 4 uses bender
Secondary bending and molding is carried out, and the microspike for being formed bending part on forcing press using mould is to press-in on the inside of bending part,
Form close fillet.
7. the manufacture method of composite metal plate according to claim 1, it is characterised in that the secondary process part is closed by aluminium
Gold is made, and thickness of the thickness less than drilling region of the secondary process part.
8. the manufacture method of composite metal plate according to claim 1, it is characterised in that the step 5 drilling can turn
Carried out in dynamic support platform.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710421285.XA CN107199441A (en) | 2017-06-07 | 2017-06-07 | A kind of manufacture method of composite metal plate |
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| CN201710421285.XA CN107199441A (en) | 2017-06-07 | 2017-06-07 | A kind of manufacture method of composite metal plate |
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| Publication Number | Publication Date |
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Family
ID=59907206
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107671146A (en) * | 2017-10-11 | 2018-02-09 | 合肥科烨电物理设备制造有限公司 | One kind is used for ITER superconducting joints R circular arcs rapid molding device and method |
| CN107855772A (en) * | 2017-11-13 | 2018-03-30 | 昆山市福玛精密钣金有限公司 | The outer board machining process of segmental machining formula |
| CN110000252A (en) * | 2019-05-14 | 2019-07-12 | 韦发全 | A kind of rear bending binding structure of composite metal plate |
| CN111266429A (en) * | 2020-02-13 | 2020-06-12 | 河北科技大学 | Purification partition panel forming device and panel forming method |
| CN111774463A (en) * | 2020-07-07 | 2020-10-16 | 江苏凯撒型材科技有限公司 | Preparation process of high-strength section bar for building curtain wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671146A (en) * | 2017-10-11 | 2018-02-09 | 合肥科烨电物理设备制造有限公司 | One kind is used for ITER superconducting joints R circular arcs rapid molding device and method |
| CN107855772A (en) * | 2017-11-13 | 2018-03-30 | 昆山市福玛精密钣金有限公司 | The outer board machining process of segmental machining formula |
| CN110000252A (en) * | 2019-05-14 | 2019-07-12 | 韦发全 | A kind of rear bending binding structure of composite metal plate |
| CN111266429A (en) * | 2020-02-13 | 2020-06-12 | 河北科技大学 | Purification partition panel forming device and panel forming method |
| CN111774463A (en) * | 2020-07-07 | 2020-10-16 | 江苏凯撒型材科技有限公司 | Preparation process of high-strength section bar for building curtain wall |
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