CN101985991A - Productive technology of composite epoxy resin compound type cable bridge - Google Patents
Productive technology of composite epoxy resin compound type cable bridge Download PDFInfo
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- CN101985991A CN101985991A CN 201010526053 CN201010526053A CN101985991A CN 101985991 A CN101985991 A CN 101985991A CN 201010526053 CN201010526053 CN 201010526053 CN 201010526053 A CN201010526053 A CN 201010526053A CN 101985991 A CN101985991 A CN 101985991A
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- steel
- steel lining
- epoxy resin
- cable bridge
- composite epoxy
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- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 14
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 14
- 150000001875 compounds Chemical class 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 22
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 4
- 239000008397 galvanized steel Substances 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 27
- 238000002156 mixing Methods 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 7
- 108010010803 Gelatin Proteins 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 229920000159 gelatin Polymers 0.000 claims description 5
- 239000008273 gelatin Substances 0.000 claims description 5
- 235000019322 gelatine Nutrition 0.000 claims description 5
- 235000011852 gelatine desserts Nutrition 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000005097 cold rolling Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 238000004826 seaming Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract 6
- 238000001746 injection moulding Methods 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002052 molecular layer Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a productive technology of a cable bridge, in particular to a productive technology of a composite epoxy resin compound type cable bridge. The technology comprises the working procedures of metallic framework rolling and molding, injection molding of a composite epoxy resin anticorrosive material layer and assembling, wherein the metallic framework is rolled and molded by adopting galvanized steel coil through a cold roll forming set; a dicing saw automatically cuts the metallic framework into steel liner; the composite epoxy resin anticorrosive material layer is completed by adopting steel-plastic extruding process, and before the steel-plastic extruding, the steel liner is coated with a binding layer; an ultrasonic welding process is adopted in the assembly work procedure; and a forked tail structure is adopted to the assembly part of a lateral wall of the cable bridge and a ladder. In the invention, the main body of the cable bridge is in a hollow cross section structure, and has the advantages of light weight, strong carrying capacity and distortion resisting capability; the surface layer of the anticorrosive layer produced by the steel-plastic extruding process has high surface hardness and can resist impact; the anticorrosive material bonding layer can effectively prevent the anticorrosive layer and the metallic framework from delaminating due to different expansion coefficients, thereby improving the cable bridge service life; and all the processing steps are completed by adopting an automatic production line, so that the production efficiency is improved greatly.
Description
Technical field
The present invention relates to the cable testing bridge production technology, the compound cable testing bridge production technology of specifically a kind of composite epoxy resin.
Background technique
Conventional composite type cable testing bridge production technology adopts the artisan craftsmanship processing and fabricating, comprising: blanking, apply, and compacting, cutting is repaired.Operation is various, and manufacturing efficiency is low, and waste of raw materials is serious.
Summary of the invention
The present invention is intended to solve the problem that the manual operations of traditional cable crane span structure production technology exists, and a kind of mechanization production, efficient height, the compound cable testing bridge production technology of the guaranteed composite epoxy resin of quality of product are provided.
The technological scheme that the present invention solves described problem employing is:
The compound cable testing bridge production technology of a kind of composite epoxy resin, carry out as follows:
A. metal frame rolling-forming operation:
The metal frame material is a galvanized steel, sends into the first road of cold roll forming unit roll after the steel band uncoiling and carries out smooth, traction, subsequently along with the running of equipment, steel band is rolled into the steel lining of design section by the different roll of function, and last two end face seamings of steel lining are after the surface is got ready, closed fully, carry out alignment through the alignment dish again, enter Cutting platform at last, after cutting probe detects steel lining, cast-cutting saw is started working, steel lining is clamped, and the saw car begins feed slowly, cuts into steel lining;
B. composite epoxy resin preserving timber bed of material molding and forming operation:
Former, the auxiliary material that at first will form anti-corrosion material are mixed, method is: former, auxiliary material is by the accurate weighing of prescription requirement, add in the spiral feeder, the height of expecting the fast batch mixer of height on spring mixes in the pot and carries out high-speed mixing, control the time of batch mixing by controlling temperature of charge, drop temperature is controlled at 125～135 ℃, and material is put into the cooling and stirring machine rapidly after reaching temperature, by the discharge gate discharging, it is other stand-by that the material of emitting is pushed into extruder in the time of below the material temperature drop to 40 ℃;
Adopt steel-plastic coextrusion technology, the steel lining surface clean of cold rolling moulding is clean, evenly brush special adhesive on the steel lining surface again, steel lining is delivered on the extruder board then, be transported to the hot device of intermediate frequency heater by the tractor traction, temperature is controlled between 150 1 250 ℃, through the steel lining arrival runner co-extruding mould of intermediate frequency heater heating; Mixture evenly flows into extruder from the head feeding kettle, behind heating plasticizing, be attached to the steel lining surface, subsequently again through the cooling of finalizing the design of typing platform, under two tractor sync pullings, steel lining is continuously by extruding unit, after arriving Cutting platform, by near probe detection to the connection part steel lining, cast-cutting saw cuts automatically, piles up through each model aseptic production of extruding unit production and treats down that neatly the road assembling procedure uses;
C. assembling procedure:
Ladder orange in the co-extrusion section bar is cut into the size of requirement in special-purpose cast-cutting saw, plug special is installed at two ends, its junction plane is coated with special gelatin and guarantees to fit tightly between its section, reaches waterproof requirement, install little orange is put in the crane span structure combination unit locating slot behind the plug stand-by; Ladder nation installs shutoff at the preceding two ends of assembling, the shutoff section is coated special adhesive earlier, weld with ultrasound again, adopt porous to be drilled in appointed part after the welding again at terraced nation two ends and get to install to connect and use the hole, after the punching two terraced nations are put in the positioning plate of assembling unit both sides the startup power supply, unit is installed to terraced orange in the dovetail groove of terraced nation automatically, after the ladder orange was all on board, automatic discharge unit started, and the crane span structure that assembles is ejected automatically.
Compared with prior art, outstanding feature of the present invention is:
(1) the cable testing bridge main body adopts the hollow cross-sectional configuration, has from heavy and light, characteristics that intensity is big, its bearing capacity and anti-twist deformability are strong, has overcome the phenomenon of collapse waist or distortion that substance type crane span structure in the past produces because of the bearing capacity difference.
(2) the metal frame material is galvanized sheet cold moudling, covering the high polymer anti-corrosion material outward is that steel-plastic coextrusion processes, anticorrosive coat surface hardness height, shock-resistant, nexine are little foaming hole-closing structure, both alleviated the crane span structure own wt, strengthen the intensity of crane span structure again, and had the characteristic of dielectric corrosions such as acid-and base-resisting, salt, ammonia.
(3) metal frame and anti-corrosion material binder course are a kind of soft materials, binder course issues biochemical reaction in 160 degree left and right sides high temperature conditions after heating in medium frequency, rely on hydrogen bond, chemical bond, coordinate bond and metal and anti-corrosion material reaction bonded, the bonding strength height, prevent metal frame and anticorrosive coat because of the different delaminations of expansion coefficient, can reach 30 years working life.
(4) crane span structure is the hollow all-sealed structure, and end face seal is adopted in the particular design end socket and added the sealer ultrasonic welding, and metal is not revealed in any position.
(5) crane span structure anti-corrosion material good flame retardation effect, oxygen index is not less than 36%.
(6) be connected between crane span structure and the crane span structure adopt in outside link plate connect, connecting plate profile and crane span structure two help profile to coincide, and have increased the join strength of crane span structure, the zinc-plated or stainless steel of bolt use carbon steel, bearing capacity reaches 120Kg/m.
(7) crane span structure lateral wall and little orange assembling position are the dovetail type structures, in conjunction with firm, intensity is high, the whole preservative treatments of little orange two ends plug-in unit exposed parts, metalwork inserts little orange,, with self threading pin little orange and plug-in unit are fastenedly connected again earlier, not only anti-corrosion integral intensity but also high with the device for ultrasonic welding welding.
(8) the crane span structure cover plate is a hollow structure, and is in light weight, intensity is high, with the lateral wall mating part be hook structure, easy for installation, firm and durable.
Description of drawings
Fig. 1 is a steel-plastic coextrusion process flow diagram of the present invention.
Embodiment
Below in conjunction with embodiment in detail the present invention is described in detail.
The compound cable testing bridge production technology of the described composite epoxy resin of present embodiment is made up of metal frame rolling-forming operation, composite epoxy resin preserving timber bed of material molding and forming operation and assembling procedure, and concrete process step and process conditions division are as follows:
1. metal frame rolling-forming operation.
Adopt the cold roll forming unit, this unit has 32 road rolls, the skeleton material is the galvanized steel that meets design size, in advance steel coil strip is installed to uncoiler and carries out uncoiling, after the uncoiling steel band is sent into the first road of clod wash unit roll and carry out smooth, traction, subsequently along with the running of equipment, steel band is rolled into the steel lining of design section by the different roll of function, last two end face seamings of steel lining, after the surface is got ready, closed fully, carry out alignment through the alignment dish again, in order to avoid lateral bending and crooked up and down appears in the moulding steel lining, enter Cutting platform at last; After cutting probe detected steel lining, cast-cutting saw was started working, and steel lining is clamped, and the saw car begins feed slowly, the cutting steel lining.Whole process all adopts The Automation Design, and online cutting need not to shut down, and institute's section is smooth smooth, no burr, and probe positions is laid behind the laser rangefinder location by preliminary dimension.
This cold roll forming unit adopts pneumatic cutting device, overcome the defective that continuity is bad, size error is excessive in the cutting of traditional cold bending forming machine group, and cutting accuracy has been reached ± advanced international level of 1mm.
2. composite epoxy resin preserving timber bed of material molding and forming operation.
Referring to Fig. 1, this operation adopts steel-plastic coextrusion technology, and the production of steel-plastic coextrusion section bar is that the steel lining after rolling is delivered on the extruder board, by the tractor traction, continuously by extruding unit.Steel lining through heating, accurate adjustment enters two runner moulds, mixture evenly flows into extruder from the head feeding kettle, is attached to the steel lining surface behind heating plasticizing, subsequently by traction, the vacuum cooling typing, after fixed length cutting, the test package warehouse-in.
The first step of coextrusion process is being mixed of former, auxiliary material.Earlier that kind surplus ten is former, auxiliary material requires to carry out accurate weighing according to prescription, adds in the spiral feeder again, and the height of expecting the fast batch mixer of height on spring mixes in the pot and carries out high-speed mixing.The process of mixing is carried out in high-speed mixer, and the impeller of high speed rotating makes material along the impeller tangential motion by the frictional force of surface and material and side to the thrust of material.Simultaneously, because action of centrifugal force, material is thrown to the mixing chamber inwall, and rises along wall, be raised to certain altitude after because the effect of gravity falls back to the impeller center again, and is thrown.Because wheel speed is very high, the material travelling speed is very fast, collide mutually, rub between the particle that rapid movement, make the agglomerate fragmentation, the corresponding rising of temperature of charge, promptly carrying out simultaneously intersecting and mixing, these effects have promoted the even distribution of component and to being fused into the absorption of liquid additive.The mixing efficiency of high-speed mixer is higher, and the mixed once time only needs 8～20min usually, and it is fast that material temperature rises nice and high with agitating friction, rises to 90～160 ℃ through 8～20min temperature.Generally control the time of batch mixing by the control temperature of charge, drop temperature is controlled at 125～135 ℃.Material is put into the cooling and stirring machine rapidly after reaching temperature.After material enters cold mixer, under the paddle effect of slowly rotating, can carry out radially the mixing with section axial, make the cold burden of contact cooling jacket and heat material carry out effective heat exchange, reduce material temperature away from cooling surface.In the time of below the material temperature drop to 40 ℃, can be by the discharge gate discharging, it is other stand-by that the material of emitting is pushed into extruder.
Second step of coextrusion process is at zinc-plated steel lining surface Machining anti-corrosion material binder course.At first clean to the zinc-plated steel lining surface clean of cold rolling moulding, brush special-purpose special gelatin more uniformly on the steel lining surface, then steel lining is transported to the extruding production line front portion, go in tractor and be transported to intermediate frequency heater by tractor, intermediate frequency heater activates the special gelatin on steel lining surface uniformly, temperature is controlled between 150-250 ℃, steel lining through the intermediate frequency heater heating arrives two runner co-extruding moulds, co-extruding mould is by the product design design, its runner is reasonable, can guarantee that anti-corrosion material is coated in the steel lining surface uniformly.
The 3rd step of coextrusion process is that the anti-corrosion material that will mix is coated in the steel lining surface.Mixture evenly flows into extruder from the head feeding kettle, under the process conditions of setting, mixing extruding on the steel lining surface is again through the cooling of finalizing the design of typing platform through extruder, under two tractor sync pullings, steel lining is continuously by extruding unit, after arriving Cutting platform, by near probe detection to the connection part steel lining, cast-cutting saw cuts automatically, this kind cutting mode cutting location is accurate, and saw kerf is smooth smooth, can not destroy the anticorrosive coat on steel lining surface.Pile up through each model aseptic production of extruding unit production and to treat down that neatly the road assembling procedure uses.
3. assembling procedure.
Assembling procedure is last procedure of crane span structure production moulding.At first the ladder orange in the co-extrusion section bar is cut into the size of requirement in special-purpose cast-cutting saw, special-purpose plug is installed at two ends, its junction plane is coated with special gelatin and guarantees to fit tightly between its section, reaches the requirement of waterproof, install little orange is put in the crane span structure combination unit locating slot behind the plug stand-by.
Ladder nation need install shutoff at two ends before assembling, the shutoff section is coated special adhesive earlier, weld with ultrasound again, so just well guaranteed its sealing, ultrasonic welding is a kind of quick, clean, effective assembly technology, ultrasonic welding is to utilize the dither ripple to be delivered to the body surface of two need welding, under the situation of pressurization, makes the mutual friction of two body surface phases and forms fusion between the molecular layer.Adopt advanced porous to be drilled in appointed part after the welding again at terraced nation two ends and get the hole that installation connects usefulness, after the punching two terraced nations are put in the positioning plate of assembling unit both sides, start power supply, unit is installed to terraced orange in the dovetail groove of terraced nation automatically, after the ladder orange is all on board, automatic discharge unit starts, and the crane span structure that assembles is ejected automatically, and promptly novel crane span structure assembling is finished.
Claims (1)
1. compound cable testing bridge production technology of composite epoxy resin, carry out as follows:
A. metal frame rolling-forming operation:
The metal frame material is a galvanized steel, sends into the first road of cold roll forming unit roll after the steel band uncoiling and carries out smooth, traction, subsequently along with the running of equipment, steel band is rolled into the steel lining of design section by the different roll of function, and last two end face seamings of steel lining are after the surface is got ready, closed fully, carry out alignment through the alignment dish again, enter Cutting platform at last, after cutting probe detects steel lining, cast-cutting saw is started working, steel lining is clamped, and the saw car begins feed slowly, cuts into steel lining;
B. composite epoxy resin preserving timber bed of material molding and forming operation:
Former, the auxiliary material that at first will constitute anti-corrosion material are mixed, method is: former, auxiliary material is by the accurate weighing of prescription requirement, add in the spiral feeder, the height of expecting the fast batch mixer of height on spring mixes in the pot and carries out high-speed mixing, control the time of batch mixing by controlling temperature of charge, drop temperature is controlled at 125～135 ℃, and material is put into the cooling and stirring machine rapidly after reaching temperature, by the discharge gate discharging, it is other stand-by that the material of emitting is pushed into extruder in the time of below the material temperature drop to 40 ℃;
Adopt steel-plastic coextrusion technology, the steel lining surface clean of cold rolling moulding is clean, evenly brush special adhesive on the steel lining surface again, steel lining is delivered on the extruder board then, be transported to the hot device of intermediate frequency heater by the tractor traction, temperature is controlled between 150-250 ℃, and the steel lining that heats through intermediate frequency heater arrives two runner co-extruding moulds; Mixture evenly flows into extruder from the head feeding kettle, behind heating plasticizing, be attached to the steel lining surface, subsequently again through the cooling of finalizing the design of typing platform, under two tractor sync pullings, steel lining is continuously by extruding unit, after arriving Cutting platform, by near probe detection to the connection part steel lining, cast-cutting saw cuts automatically, piles up through each model aseptic production of extruding unit production and treats down that neatly the road assembling procedure uses;
C. assembling procedure:
Ladder orange in the co-extrusion section bar is cut into the size of requirement in special-purpose cast-cutting saw, plug special is installed at two ends, its junction plane is coated with special gelatin and guarantees to fit tightly between its section, reaches waterproof requirement, install little orange is put in the crane span structure combination unit locating slot behind the plug stand-by; Ladder nation installs shutoff at the preceding two ends of assembling, the shutoff section is coated special adhesive earlier, weld with ultrasound again, adopt porous to be drilled in appointed part after the welding again at terraced nation two ends and get to install to connect and use the hole, after the punching two terraced nations are put in the positioning plate of assembling unit both sides the startup power supply, unit is installed to terraced orange in the dovetail groove of terraced nation automatically, after the ladder orange was all on board, automatic discharge unit started, and the crane span structure that assembles is ejected automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105260539A CN101985991B (en) | 2010-10-29 | 2010-10-29 | Productive technology of composite epoxy resin compound type cable bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105260539A CN101985991B (en) | 2010-10-29 | 2010-10-29 | Productive technology of composite epoxy resin compound type cable bridge |
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| Publication Number | Publication Date |
|---|---|
| CN101985991A true CN101985991A (en) | 2011-03-16 |
| CN101985991B CN101985991B (en) | 2012-01-11 |
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| CN2010105260539A Active CN101985991B (en) | 2010-10-29 | 2010-10-29 | Productive technology of composite epoxy resin compound type cable bridge |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234082A (en) * | 2013-04-19 | 2013-08-07 | 河北燕舞防爆电器有限公司 | Polymer modified composite resin composite type cable tray production method |
| CN105599199A (en) * | 2015-11-09 | 2016-05-25 | 天津市天塑科技集团有限公司第四塑料制品厂 | Time control device and time control method in PVC calendering production line high stirring material mixing |
| CN109504035A (en) * | 2018-11-14 | 2019-03-22 | 遵义华正电缆桥架有限公司 | A kind of fire-retarding epoxy resin composite material cable testing bridge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076890A (en) * | 1992-03-26 | 1993-10-06 | 刘富春 | The manufacturing technology of the hard plastics-steel products that expanded metal lath strengthens |
| CN1246407A (en) * | 1999-04-07 | 2000-03-08 | 江明榆 | Method for making stainless steel-plastics compounded deformed section and its special equipment |
-
2010
- 2010-10-29 CN CN2010105260539A patent/CN101985991B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076890A (en) * | 1992-03-26 | 1993-10-06 | 刘富春 | The manufacturing technology of the hard plastics-steel products that expanded metal lath strengthens |
| CN1246407A (en) * | 1999-04-07 | 2000-03-08 | 江明榆 | Method for making stainless steel-plastics compounded deformed section and its special equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234082A (en) * | 2013-04-19 | 2013-08-07 | 河北燕舞防爆电器有限公司 | Polymer modified composite resin composite type cable tray production method |
| CN103234082B (en) * | 2013-04-19 | 2015-10-21 | 河北燕舞防爆电器有限公司 | Macromolecule improvement compound resin composite electric cable bridge production method |
| CN105599199A (en) * | 2015-11-09 | 2016-05-25 | 天津市天塑科技集团有限公司第四塑料制品厂 | Time control device and time control method in PVC calendering production line high stirring material mixing |
| CN109504035A (en) * | 2018-11-14 | 2019-03-22 | 遵义华正电缆桥架有限公司 | A kind of fire-retarding epoxy resin composite material cable testing bridge |
| CN109504035B (en) * | 2018-11-14 | 2021-04-13 | 遵义华正电缆桥架有限公司 | Flame-retardant epoxy resin composite material cable bridge |
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| CN101985991B (en) | 2012-01-11 |
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Owner name: FUENTE ANTI-CORROSION CONTROL EQUIPMENT CO., LTD., Free format text: FORMER OWNER: XU HUAISHU Effective date: 20120328 |
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Denomination of invention: Production process of composite epoxy resin composite cable tray Effective date of registration: 20230818 Granted publication date: 20120111 Pledgee: Bank of China Limited Qinhuangdao Branch Pledgor: HEBEI FLUENT ELECTRICAL EQUIPMENT CO.,LTD. Registration number: Y2023980052844 |
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