CN108796366A - A kind of high strength steel cable testing bridge - Google Patents
A kind of high strength steel cable testing bridge Download PDFInfo
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- CN108796366A CN108796366A CN201810556187.1A CN201810556187A CN108796366A CN 108796366 A CN108796366 A CN 108796366A CN 201810556187 A CN201810556187 A CN 201810556187A CN 108796366 A CN108796366 A CN 108796366A
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- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
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Abstract
The present invention relates to a kind of high strength steel cable testing bridges, belong to cable machinery technical field.Chemical analysis mass percent is in the high strength steel cable testing bridge：C：0.25-0.28%, Mn：0.47-0.55%, Al：0.70-1.00%, Si：0.06-0.19%, P：0.025-0.028%, S：0.025-0.031%, Cr：0.11-0.15%, Ni：0.66-0.79%, Mo：0.55-0.65%, remaining is Fe；The processing technology of the high strength steel cable testing bridge includes the following steps：（1）Casting mold is made；（2）It is original iron melt to add raw materials into melting in electric furnace；（3）Cold obtained charge bar after original iron melt is handled；（4）Electroslag remelting processing；（5）Casting cable testing bridge semi-finished product；（6）Cable testing bridge semi-finished product are heat-treated；（7）Surface covers inorganic fire heat insulation layer；（8）Anticorrosive coating is applied on the surface of inorganic fire heat insulation layer；（9）Quality inspection.Adjustment and heat treatment process of the high strength steel cable testing bridge of the present invention by ingredient, the properties of cable testing bridge are greatly improved.
Description
Technical field
The present invention relates to a kind of high strength steel cable testing bridges, belong to cable machinery technical field.
Background technology
Cable testing bridge is primarily used to laying computer cable, communication cable, thermocouple cable and other Highly Sensitive Systems
Control cable, the buildings such as especially large-scale office building, financial mall, hotel, venue, information point is intensive, Cable runs in addition to
Using floor groove and within the walls outside pipe laying mode, the widely used cable testing bridge in vertical shaft and within doors ceiling suspended ceiling, however it is existing
Cable testing bridge because of reasons such as material, processing technologys, the problems such as there is perishable, intensity is low, service life is shorter.
Invention content
The technical problem to be solved by the present invention is in view of the shortcomings of the prior art, propose a kind of corrosion-resistant and service life
Long high strength steel cable testing bridge.
The technical solution that the present invention proposes to solve above-mentioned technical problem is：A kind of high strength steel cable testing bridge, the height
Chemical analysis mass percent is in intensity steel cable bridge：C：0.25-0.28%, Mn：0.47-0.55%, Al：0.70-
1.00%, Si：0.06-0.19%, P：0.025-0.028%, S：0.025-0.031%, Cr：0.11-0.15%, Ni：0.66-
0.79%, Mo：0.55-0.65%, Ce：0.01-0.05%,Eu：0.01-0.04%,Lu:0.05-0.07%, remaining is Fe；
The processing technology of high strength steel cable testing bridge includes the following steps：
（1）Casting mold is made by Modeling Material of molding sand, before making casting mold, first by the molding sand in Modeling Material be placed in baker into
Row drying coats the chromite resin sand of 60mm thickness in the hair side portion of casting mold；
（2）It is original iron melt to add raw materials into melting in electric furnace, and smelting temperature is 1900 DEG C, and circuit work(is incrementally increased in fusion process
Rate, and often carry out smashing material operation；
（3）Original iron melt is added nodulizer in nodularization packet after coming out of the stove and carries out spheroidising, after waiting for spheroidizing reacion, in original iron melt
Charge bar is made to purify original iron melt, by original iron melt water cooling in upper spreading perlite slag making；
（4）Electroslag remelting processing：CaF2, CaO2 are made to the slag charge of electroslag remelting, and are heated to molten condition, pours into crystallizer
In, and low-temperature cooling water is passed through into the housing wall of crystallizer, then the charge bar of preparation is slowly declined to the electroslag weight of melting
In molten slag charge, and the starting the arc that is powered, adjustment remelting voltage to 75~90V, 2000~200A of electric current；Charge bar is slowly melted by resistance heat
Change, the iron liquid drop formed after charge bar fusing reacts with slag charge across the slag material layer of melting and purified, and in crystallizer
Bottom recrystallize, obtain dense structure, uniform, pure, the steel ingot of any surface finish；
（5）Heating Steel Ingots are formed into molten steel and are cast into cable testing bridge semi-finished product in casting mold, the duration of pouring is no more than 5min, pours
It is 1700-1800 DEG C to note temperature；
（6）Cable testing bridge semi-finished product are annealed successively, are quenched, temper, high strength steel cable testing bridge is made；
（7）Inorganic fire heat insulation layer is covered on high strength steel cable testing bridge surface, the raw material components of inorganic fire heat insulation layer are pressed
Parts by weight include：15-25 parts of aluminium oxide, 30-40 parts of magnesia, 35-38 parts of magnesium chloride, 6-8 parts of perlite, 5-6 parts of stick, resistance
Fire 10-14 parts of agent；
（8）Inorganic fire heat insulation layer surface apply anticorrosive coating, anticorrosive coating according to the mass fraction include it is following
Component：20-30 parts of aluminium oxide, 15-30 parts of epoxy resin, 15-25 parts of zinc borate phenol-formaldehyde resin modified, 7-9 parts of color stuffing, levelling
3-4 parts of agent, 6-8 parts of dispersant, 10-13 parts of curing agent, 10-20 parts of solvent；Color stuffing be the mixed of iron oxide red and trbasic zinc phosphate
Close object；Levelling agent be polyacrylic acid or hydroxymethyl cellulose；Dispersant be calgon；Curing agent be capsule solidification
Agent；Solvent be ethyl alcohol and acetic acid in one kind；
（9）Quality inspection：Examine high strength steel cable testing bridge quality, re-worked to underproof, then use ultrasonic wave without
Whether there is slight crack inside damage defectoscope detection cable crane span structure, is then waste product if any slight crack, it is finished product to examine qualification, storage.
The improvement of above-mentioned technical proposal is：Chemical analysis mass percent is in high strength steel cable testing bridge：C：
0.26%, Mn：0.48%, Al：0.71%, Si：0.06%, P：0.026%, S：0.027%, Cr：0.13%, Ni：0.69%, Mo：
0.58%, Ce：0.03%,Eu：0.02%,Lu：0.06%, remaining is Fe.
The improvement of above-mentioned technical proposal is：Chemical analysis mass percent is in high strength steel cable testing bridge：C：
0.28%, Mn：0.55%, Al：1.00%, Si：0.19%, P：0.028%, S：0.031%, Cr：0.15%, Ni：0.79%, Mo：
0.65%, Ce：0.05%,Eu：0.04%,Lu：0.07%, remaining is Fe.
The improvement of above-mentioned technical proposal is：The step of processing technology of high strength steel cable testing bridge（7）In, inorganic fire
The raw material components of heat insulation layer include by weight：18 parts of aluminium oxide, 35 parts of magnesia, 38 parts of magnesium chloride, 8 parts of perlite, stick 6
Part, 12 parts of fire retardant.
The improvement of above-mentioned technical proposal is：The step of processing technology of high strength steel cable testing bridge（7）In, it is described inorganic
The raw material components of fire-proof heat-insulating layer include by weight：22 parts of aluminium oxide, 37 parts of magnesia, 36 parts of magnesium chloride, 6 parts of perlite,
5 parts of stick, 14 parts of fire retardant.
The improvement of above-mentioned technical proposal is：The step of processing technology of high strength steel cable testing bridge（8）In anticorrosion
Coating includes following components according to the mass fraction：25 parts of aluminium oxide, 20 parts of epoxy resin, 15 parts of zinc borate phenol-formaldehyde resin modified,
9 parts of color stuffing, 4 parts of levelling agent, 7 parts of dispersant, 13 parts of curing agent, 20 parts of solvent.
The improvement of above-mentioned technical proposal is：The step of processing technology of high strength steel cable testing bridge（8）In anticorrosion
Coating includes following components according to the mass fraction：28 parts of aluminium oxide, 16 parts of epoxy resin, 22 parts of zinc borate phenol-formaldehyde resin modified,
7 parts of color stuffing, 3 parts of levelling agent, 6 parts of dispersant, 11 parts of curing agent, 15 parts of solvent.
The improvement of above-mentioned technical proposal is：The step of processing technology of high strength steel cable testing bridge（8）In, levelling agent is
Polyacrylic acid；Solvent is ethyl alcohol.
The improvement of above-mentioned technical proposal is：The step of processing technology of high strength steel cable testing bridge（4）In, adjust remelting
Voltage is to 80V, electric current 800A.
The improvement of above-mentioned technical proposal is：The step of processing technology of high strength steel cable testing bridge（5）In, pouring temperature
It is 1750 DEG C.
The present invention is using the advantageous effect of above-mentioned technical proposal：
（1）Adjustment and heat treatment process of the high strength steel cable testing bridge of the present invention by ingredient, ensure that tensile strength reaches
To 700/Mpa, elongation after fracture reaches 22.30%, and end face shrinking percentage reaches 30%, and yield point elongation rate elongation percentage reaches 42.3J,
Elongation at yield point reaches 980/Mpa, and the properties of cable testing bridge are greatly improved；
（2）The high strength steel cable testing bridge of the present invention carries out electroslag remelting processing by work in-process, substantially increases cable
The final mass of crane span structure so that the intensity of cable testing bridge significantly improves, and reduces 55% defect rate, effectively reduces cost；
（3）The high strength steel cable testing bridge of the present invention is covered by work in-process on high strength steel cable testing bridge surface inorganic
Fire-proof heat-insulating layer improves the fire prevention in use and heat-insulating property, ensure that it is safe to use, and improve high strength steel electricity
The corrosion resistance of cable crane span structure；
（4）The high strength steel cable testing bridge of the present invention applies anticorrosion by work in-process on the surface of inorganic fire heat insulation layer
Coating further improves the corrosion resistance of high strength steel cable testing bridge, extends service life.
Specific implementation mode
Embodiment 1
The high strength steel cable testing bridge of the present embodiment, chemical analysis mass percent is in the high strength steel cable testing bridge：
C：0.26%, Mn：0.48%, Al：0.71%, Si：0.06%, P：0.026%, S：0.027%, Cr：0.13%, Ni：0.69%, Mo：
0.58%, Ce：0.03%,Eu：0.02%,Lu：0.06%, remaining is Fe；
The processing technology of high strength steel cable testing bridge includes the following steps：
（1）Casting mold is made by Modeling Material of molding sand, before making casting mold, first by the molding sand in Modeling Material be placed in baker into
Row drying coats the chromite resin sand of 60mm thickness in the hair side portion of casting mold；
（2）It is original iron melt to add raw materials into melting in electric furnace, and smelting temperature is 1900 DEG C, and circuit work(is incrementally increased in fusion process
Rate, and often carry out smashing material operation；
（3）Original iron melt is added nodulizer in nodularization packet after coming out of the stove and carries out spheroidising, after waiting for spheroidizing reacion, in original iron melt
Charge bar is made to purify original iron melt, by original iron melt water cooling in upper spreading perlite slag making；
（4）Electroslag remelting processing：CaF2, CaO2 are made to the slag charge of electroslag remelting, and are heated to molten condition, pours into crystallizer
In, and low-temperature cooling water is passed through into the housing wall of crystallizer, then the charge bar of preparation is slowly declined to the electroslag weight of melting
In molten slag charge, and the starting the arc that is powered, adjustment remelting voltage to 80V, electric current 800A；Charge bar is slowly melted by resistance heat, and charge bar is molten
The iron liquid drop formed after change reacts with slag charge and is purified across the slag material layer of melting, and the bottom of crystallizer again
Crystallization, obtains dense structure, uniform, pure, the steel ingot of any surface finish；
（5）Heating Steel Ingots are formed into molten steel and are cast into cable testing bridge semi-finished product in casting mold, the duration of pouring is no more than 5min, pours
It is 1750 DEG C to note temperature；
（6）Cable testing bridge semi-finished product are annealed successively, are quenched, temper, high strength steel cable testing bridge is made；
（7）Inorganic fire heat insulation layer is covered on high strength steel cable testing bridge surface, the raw material components of inorganic fire heat insulation layer are pressed
Parts by weight include：18 parts of aluminium oxide, 35 parts of magnesia, 38 parts of magnesium chloride, 8 parts of perlite, 6 parts of stick, 12 parts of fire retardant；
（8）Inorganic fire heat insulation layer surface apply anticorrosive coating, anticorrosive coating according to the mass fraction include it is following
Component：25 parts of aluminium oxide, 20 parts of epoxy resin, 15 parts of zinc borate phenol-formaldehyde resin modified, 9 parts of color stuffing, 4 parts of levelling agent, dispersion
7 parts of agent, 13 parts of curing agent, 20 parts of solvent；Color stuffing be iron oxide red and trbasic zinc phosphate mixture；Levelling agent is polypropylene
Acid；Dispersant is calgon；Curing agent is capsule curing agent；Solvent is ethyl alcohol；
（9）Quality inspection：Examine high strength steel cable testing bridge quality, re-worked to underproof, then use ultrasonic wave without
Whether there is slight crack inside damage defectoscope detection cable crane span structure, is then waste product if any slight crack, it is finished product to examine qualification, storage.
Embodiment 2
The high strength steel cable testing bridge of the present embodiment, chemical analysis mass percent is in the high strength steel cable testing bridge：
C：0.28%, Mn：0.55%, Al：1.00%, Si：0.19%, P：0.028%, S：0.031%, Cr：0.15%, Ni：0.79%, Mo：
0.65%, Ce：0.05%,Eu：0.04%,Lu：0.07%, remaining is Fe；
The processing technology of high strength steel cable testing bridge includes the following steps：
（1）Casting mold is made by Modeling Material of molding sand, before making casting mold, first by the molding sand in Modeling Material be placed in baker into
Row drying coats the chromite resin sand of 60mm thickness in the hair side portion of casting mold；
（2）It is original iron melt to add raw materials into melting in electric furnace, and smelting temperature is 1900 DEG C, and circuit work(is incrementally increased in fusion process
Rate, and often carry out smashing material operation；
（3）Original iron melt is added nodulizer in nodularization packet after coming out of the stove and carries out spheroidising, after waiting for spheroidizing reacion, in original iron melt
Charge bar is made to purify original iron melt, by original iron melt water cooling in upper spreading perlite slag making；
（4）Electroslag remelting processing：CaF2, CaO2 are made to the slag charge of electroslag remelting, and are heated to molten condition, pours into crystallizer
In, and low-temperature cooling water is passed through into the housing wall of crystallizer, then the charge bar of preparation is slowly declined to the electroslag weight of melting
In molten slag charge, and the starting the arc that is powered, adjustment remelting voltage to 80V, electric current 800A；Charge bar is slowly melted by resistance heat, and charge bar is molten
The iron liquid drop formed after change reacts with slag charge and is purified across the slag material layer of melting, and the bottom of crystallizer again
Crystallization, obtains dense structure, uniform, pure, the steel ingot of any surface finish；
（5）Heating Steel Ingots are formed into molten steel and are cast into cable testing bridge semi-finished product in casting mold, the duration of pouring is no more than 5min, pours
It is 1700-1800 DEG C to note temperature；
（6）Cable testing bridge semi-finished product are annealed successively, are quenched, temper, high strength steel cable testing bridge is made；
（7）Inorganic fire heat insulation layer is covered on high strength steel cable testing bridge surface, the raw material components of inorganic fire heat insulation layer are pressed
Parts by weight include：22 parts of aluminium oxide, 37 parts of magnesia, 36 parts of magnesium chloride, 6 parts of perlite, 5 parts of stick, 14 parts of fire retardant；
（8）Inorganic fire heat insulation layer surface apply anticorrosive coating, anticorrosive coating according to the mass fraction include it is following
Component：28 parts of aluminium oxide, 16 parts of epoxy resin, 22 parts of zinc borate phenol-formaldehyde resin modified, 7 parts of color stuffing, 3 parts of levelling agent, dispersion
6 parts of agent, 11 parts of curing agent, 15 parts of solvent；Color stuffing is the mixture of iron oxide red and trbasic zinc phosphate；Levelling agent is hydroxylmethyl cellulose
Element；Dispersant is calgon；Curing agent is capsule curing agent；Solvent is acetic acid；
（9）Quality inspection：Examine high strength steel cable testing bridge quality, re-worked to underproof, then use ultrasonic wave without
Whether there is slight crack inside damage defectoscope detection cable crane span structure, is then waste product if any slight crack, it is finished product to examine qualification, storage.
The present invention is not limited to the above embodiment.All technical solutions formed using equivalent replacement, are all fallen within the present invention and wanted
The protection domain asked.
Claims (10)
1. a kind of high strength steel cable testing bridge, it is characterised in that：Chemical analysis quality in the high strength steel cable testing bridge
Percentage is：C：0.25-0.28%, Mn：0.47-0.55%, Al：0.70-1.00%, Si：0.06-0.19%, P：0.025-
0.028%, S：0.025-0.031%, Cr：0.11-0.15%, Ni：0.66-0.79%, Mo：0.55-0.65%, Ce：0.01-
0.05%,Eu：0.01-0.04%,Lu：0.05-0.07%, remaining is Fe；
The processing technology of the high strength steel cable testing bridge includes the following steps：
（1）Casting mold is made by Modeling Material of molding sand, before making casting mold, first by the molding sand in Modeling Material be placed in baker into
Row drying coats the chromite resin sand of 60mm thickness in the hair side portion of casting mold；
（2）It is original iron melt to add raw materials into melting in electric furnace, and smelting temperature is 1900 DEG C, and circuit work(is incrementally increased in fusion process
Rate, and often carry out smashing material operation；
（3）Original iron melt is added nodulizer in nodularization packet after coming out of the stove and carries out spheroidising, after waiting for spheroidizing reacion, in original iron melt
Charge bar is made to purify original iron melt, by original iron melt water cooling in upper spreading perlite slag making；
（4）Electroslag remelting processing：CaF2, CaO2 are made to the slag charge of electroslag remelting, and are heated to molten condition, pours into crystallizer
In, and low-temperature cooling water is passed through into the housing wall of crystallizer, then the charge bar of preparation is slowly declined to the electroslag weight of melting
In molten slag charge, and the starting the arc that is powered, adjustment remelting voltage to 75~90V, 2000~200A of electric current；Charge bar is slowly melted by resistance heat
Change, the iron liquid drop formed after charge bar fusing reacts with slag charge across the slag material layer of melting and purified, and in crystallizer
Bottom recrystallize, obtain dense structure, uniform, pure, the steel ingot of any surface finish；
（5）Heating Steel Ingots are formed into molten steel and are cast into cable testing bridge semi-finished product in casting mold, the duration of pouring is no more than 5min, pours
It is 1700-1800 DEG C to note temperature；
（6）Cable testing bridge semi-finished product are annealed successively, are quenched, temper, high strength steel cable testing bridge is made；
（7）Inorganic fire heat insulation layer, the raw material group of the inorganic fire heat insulation layer are covered on high strength steel cable testing bridge surface
Divide and includes by weight：15-25 parts of aluminium oxide, 30-40 parts of magnesia, 35-38 parts of magnesium chloride, 6-8 parts of perlite, stick 5-6
Part, 10-14 parts of fire retardant；
（8）Anticorrosive coating is applied on the surface of the inorganic fire heat insulation layer, the anticorrosive coating is according to the mass fraction
Including following components：20-30 parts of aluminium oxide, 15-30 parts of epoxy resin, 15-25 parts of zinc borate phenol-formaldehyde resin modified, color stuffing 7-
9 parts, 3-4 parts of levelling agent, 6-8 parts of dispersant, 10-13 parts of curing agent, 10-20 parts of solvent；The color stuffing is iron oxide red
With the mixture of trbasic zinc phosphate；The levelling agent is polyacrylic acid or hydroxymethyl cellulose；The dispersant is hexa metaphosphoric acid
Sodium；The curing agent is capsule curing agent；The solvent is one kind in ethyl alcohol and acetic acid；
（9）Quality inspection：Examine high strength steel cable testing bridge quality, re-worked to underproof, then use ultrasonic wave without
Whether there is slight crack inside damage defectoscope detection cable crane span structure, is then waste product if any slight crack, it is finished product to examine qualification, storage.
2. high strength steel cable testing bridge according to claim 1, it is characterised in that：The high strength steel cable testing bridge
Middle chemical analysis mass percent is：C：0.26%, Mn：0.48%, Al：0.71%, Si：0.06%, P：0.026%, S：0.027%,
Cr：0.13%, Ni：0.69%, Mo：0.58%, Ce：0.03%,Eu：0.02%,Lu：0.06%, remaining is Fe.
3. high strength steel cable testing bridge according to claim 1, it is characterised in that：The high strength steel cable testing bridge
Middle chemical analysis mass percent is：C：0.28%, Mn：0.55%, Al：1.00%, Si：0.19%, P：0.028%, S：0.031%,
Cr：0.15%, Ni：0.79%, Mo：0.65%, Ce：0.05%,Eu：0.04%,Lu：0.07%, remaining is Fe.
4. high strength steel cable testing bridge according to claim 1, it is characterised in that：The high strength steel cable testing bridge
Processing technology the step of（7）In, the raw material components of the inorganic fire heat insulation layer include by weight：18 parts of aluminium oxide, oxygen
Change 35 parts of magnesium, 38 parts of magnesium chloride, 8 parts of perlite, 6 parts of stick, 12 parts of fire retardant.
5. high strength steel cable testing bridge according to claim 1, it is characterised in that：The high strength steel cable testing bridge
Processing technology the step of（7）In, the raw material components of the inorganic fire heat insulation layer include by weight：22 parts of aluminium oxide, oxygen
Change 37 parts of magnesium, 36 parts of magnesium chloride, 6 parts of perlite, 5 parts of stick, 14 parts of fire retardant.
6. high strength steel cable testing bridge according to claim 1, it is characterised in that：The high strength steel cable testing bridge
Processing technology the step of（8）In, the anticorrosive coating includes following components according to the mass fraction：25 parts of aluminium oxide, ring
It is 20 parts of oxygen resin, 15 parts of zinc borate phenol-formaldehyde resin modified, 9 parts of color stuffing, 4 parts of levelling agent, 7 parts of dispersant, 13 parts of curing agent, molten
20 parts of agent.
7. high strength steel cable testing bridge according to claim 1, it is characterised in that：The high strength steel cable testing bridge
Processing technology the step of（8）In, the anticorrosive coating includes following components according to the mass fraction：28 parts of aluminium oxide, ring
It is 16 parts of oxygen resin, 22 parts of zinc borate phenol-formaldehyde resin modified, 7 parts of color stuffing, 3 parts of levelling agent, 6 parts of dispersant, 11 parts of curing agent, molten
15 parts of agent.
8. high strength steel cable testing bridge according to claim 1, it is characterised in that：The high strength steel cable testing bridge
Processing technology the step of（8）In, the levelling agent is polyacrylic acid；The solvent is ethyl alcohol.
9. high strength steel cable testing bridge according to claim 1, it is characterised in that：The high strength steel cable testing bridge
Processing technology the step of（4）In, adjustment remelting voltage to 80V, electric current 800A.
10. high strength steel cable testing bridge according to claim 1, it is characterised in that：The high strength steel cable bridge
The step of processing technology of frame（5）In, pouring temperature is 1750 DEG C.
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| CN201810556187.1A CN108796366A (en) | 2018-06-01 | 2018-06-01 | A kind of high strength steel cable testing bridge |
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| CN201810556187.1A CN108796366A (en) | 2018-06-01 | 2018-06-01 | A kind of high strength steel cable testing bridge |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404191A (en) * | 2014-11-08 | 2015-03-11 | 江苏天舜金属材料集团有限公司 | Casting technology of wear-resistant low-porosity cable bridge stand |
| CN105368244A (en) * | 2015-11-10 | 2016-03-02 | 江苏宇恒电气有限公司 | Corrosion preventing technology for pallet type cable bridge |
| CN107565474A (en) * | 2017-10-29 | 2018-01-09 | 江苏鼎荣电气集团有限公司 | A kind of composite electric cable bridge and its production technology |
| CN107674307A (en) * | 2017-10-29 | 2018-02-09 | 江苏鼎荣电气集团有限公司 | A kind of composite fireproof anti-corrosion cable bridge and preparation method thereof |
| CN107761000A (en) * | 2017-10-29 | 2018-03-06 | 江苏鼎荣电气集团有限公司 | A kind of production technology of high radiating cable testing bridge |
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2018
- 2018-06-01 CN CN201810556187.1A patent/CN108796366A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404191A (en) * | 2014-11-08 | 2015-03-11 | 江苏天舜金属材料集团有限公司 | Casting technology of wear-resistant low-porosity cable bridge stand |
| CN105368244A (en) * | 2015-11-10 | 2016-03-02 | 江苏宇恒电气有限公司 | Corrosion preventing technology for pallet type cable bridge |
| CN107565474A (en) * | 2017-10-29 | 2018-01-09 | 江苏鼎荣电气集团有限公司 | A kind of composite electric cable bridge and its production technology |
| CN107674307A (en) * | 2017-10-29 | 2018-02-09 | 江苏鼎荣电气集团有限公司 | A kind of composite fireproof anti-corrosion cable bridge and preparation method thereof |
| CN107761000A (en) * | 2017-10-29 | 2018-03-06 | 江苏鼎荣电气集团有限公司 | A kind of production technology of high radiating cable testing bridge |
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