CN201024207Y - Closed steel wire galvanizing device - Google Patents
Closed steel wire galvanizing device Download PDFInfo
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- CN201024207Y CN201024207Y CNU2007201035094U CN200720103509U CN201024207Y CN 201024207 Y CN201024207 Y CN 201024207Y CN U2007201035094 U CNU2007201035094 U CN U2007201035094U CN 200720103509 U CN200720103509 U CN 200720103509U CN 201024207 Y CN201024207 Y CN 201024207Y
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- zinc
- reaction chamber
- groove
- airtight
- outer cover
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Abstract
A closed steel wire galvanizing device comprises a galvanizing system and an automatic supply system. The galvanizing system comprises a closed zinc reaction chamber, a front external cover which is closely connected with the front end of the zinc reaction chamber and is internally provided with an induction heater for heating at least one steel wire and a support roll and a back external cover which is closely connected with the back end of the zinc reaction chamber and is internally provided with a cooling device. The front external cover, the back external cover and the zinc reaction chamber are respectively provided with a protective air delivery pipe; the zinc reaction chamber consists of a front slant part, a back slant part and a level part in the middle and is provided with the induction heater outside; the automatic supply system comprises a middle zinc groove which is closely connected with the zinc reaction chamber and is provided with a liquid level controller, an induction heater and an protective air delivery pipe and a zinc smelting groove which is closely connected with the middle zinc groove and is provided with a feeding port with a sealed door; the middle zinc groove keeps in the same liquid level as the zinc liquid in the zinc reaction chamber. The utility model can prevent the zinc steam from emitting to the air and has no problem such as zinc ash which is caused by the oxidation of the steel wire and the zinc liquid.
Description
Technical field
The utility model relates to a kind of galvanizing rig, relates in particular to a kind of airtight wire galvanization device.
Background technology
Steel Wire Surface galvanizing or aluminium zinc are one of main method that reduces the burn into protecting materials, increases the service life.Current at present traditional galvanizing technology, earlier Steel Wire Surface is carried out pre-treatment (deoil, descaling and be coated with help zinc agent etc.), enter then in the fused zinc liquid, zinc liquid melts in molten zinc groove, and about 450 ℃, keep constant temperature, and the zinc groove is whole or local open, steel wire enters from an open end, walk out from the other end, finish galvanizing process.
There are important disadvantages in this processing method and equipment:
A. the fusing point of zinc is 419.5 ℃, when zinc liquid is 450 ℃ of left and right sides, produces a large amount of zinc fumes, distributes in air contaminate environment, harm humans health.
B. zinc liquid contacts with air, generates zinc oxide, becomes zinc gray, floats on zinc liquid surface, makes zinc-plated generation defect, increases the consumption about 20～30% of zinc simultaneously.
C. the cold conditions steel wire of room temperature enters the zinc liquid about 450 ℃, and steel wire at first will be heated to zinc liquid phase temperature together the regular hour, could produce zinc-plated reaction then, and will be longer than greatly the zinc-plated reaction times heat-up time, and the time that steel wire immerses zinc liquid greatly increases.In identical wire velocity conditions, the length of zinc bath must extend, and is volume gain, the corresponding increasing of energy loss of fusing zinc and heat radiation.The surface-area of zinc liquid increases simultaneously, and is big with the contact surface of air, and the voloxidation loss of zinc is also very serious.
D. zinc bath and molten zinc groove are same grooves, and when adding the fusing of solid zinc ingot metal, the temperature of zinc liquid descends, and the temperature of galvanizing flux produces fluctuation, influences quality of coating.
E. owing to the volatilization of zinc fume, the generation of zinc oxide and the volume excessive (reaching tens of tons) of elimination and zinc bath, the demand of liquid zinc is big, needs energy heat fused, and thermosteresis such as big volume zinc bath heat radiation are big, and the consumption of the energy is very big.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of airtight wire galvanization device, can avoid zinc fume to be dispersed in the air, do not have the oxidation of the surface oxidation of steel wire and zinc liquid and produce zinc grays such as zinc oxide etc. problem.
To achieve these goals; the utility model provides a kind of airtight wire galvanization device; its characteristics are; comprise: zinc-plated system and JUMPS Automated Supplemental System; described zinc-plated system comprises; airtight zinc reaction chamber; with the airtight preceding outer cover that is connected of described zinc reaction chamber front end with the airtight back outer cover that is connected in described zinc reaction chamber rear end; be provided with induction heater and the support roll that heats a steel wire at least in the outer cover before described; be provided with refrigerating unit in the outer cover of described back; on the described preceding outer cover; on the back outer cover; be respectively equipped with shielding gas gas transmission conduit on the zinc reaction chamber; before described zinc reaction chamber comprises; back two rakes and by-level part, the outside is provided with induction heater.Described JUMPS Automated Supplemental System comprises, with the airtight middle zinc groove that is connected of described zinc reaction chamber with the airtight molten zinc groove that is connected of middle zinc groove, the zinc groove is provided with fluid level controller, heating unit and shielding gas gas transmission conduit in the middle of described, and described molten zinc groove is provided with the feeding mouth and the heating unit of band sealed door; In the middle of described in the zinc groove in zinc liquid and the described zinc reaction chamber liquid level of zinc liquid keep level consistent automatically.
Above-mentioned airtight wire galvanization device, its characteristics are that described molten zinc groove is provided with electromagnetic pump.
Or above-mentioned airtight wire galvanization device, its characteristics are that described molten zinc groove is provided with high pressure blowing mouth and coupled relief valve.
Above-mentioned airtight wire galvanization device, its characteristics be, described zinc reaction chamber and described in the middle of the zinc groove, described in the middle of zinc groove and described molten zinc groove, be respectively arranged with induction heater by defeated zinc pipe road on the continuous and defeated zinc pipe road respectively, or resistance heater.
Above-mentioned airtight wire galvanization device, its characteristics be, forward and backward two angles that form between described zinc reaction chamber forward and backward two ones and the by-level portion are that 10 °～90 ° and forward and backward two angles are identical or different.
Above-mentioned airtight wire galvanization device, its characteristics are, are positioned at described refrigerating unit in the outer cover of described back and also are provided with wiping arrangement before.
Above-mentioned airtight wire galvanization device, its characteristics are, also are provided with straightening roll in the described preceding outer cover between described induction heater; Be positioned at described forward and backward two rakes in the described zinc reaction chamber and described by-level portion junction also is provided with Wirewinding roller; Described back outer cover also is provided with support roll and take off roll outward.
Above-mentioned airtight wire galvanization device, its characteristics are that described feeding mouth is the pipeline that has sealed door that is arranged on described molten zinc groove top, and described sealed door is two and is arranged at a certain distance in this pipeline.
Above-mentioned airtight wire galvanization device, its characteristics are, are provided with liner in described zinc reaction chamber, middle zinc groove, molten zinc groove and the defeated zinc pipe road.
Above-mentioned airtight wire galvanization device, its characteristics are that described liner is a ceramic member.
Above-mentioned airtight wire galvanization device is characterized in that described heating unit is induction heater or electric tube heater.
Effect of the present utility model is that steel wire is at N
2Or H
2Protection heating down, liquid zinc are also isolated with air under the protection of N2 or H2, and Steel Wire Surface does not produce oxidation, and zinc liquid can not produce oxidation yet; The loss and the coating defect of the zinc oxide of oxidation generation have been eliminated; The immersion plating time is short, and productivity height, all zinc liquid liquid levels are all isolated with air under the protection of N2 or H2, it is the zinc-plated mode of closed pipeline formula, do not have zinc to evaporate in the environment on every side, adjust the front and back skew angle α and the β of reaction chamber, can adapt to the zinc-plated of different diameter steel wire; Be applicable to the hot dip of steel wire zinc-aluminium (ZnAl) of Φ 1～Φ 6, also be applicable to the hot dip process of alloy and aluminium (Al) alloy, lead (Pb) tin (Sn) alloy; Also be applicable to the hot dip process of steel band.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is zinc-plated system architecture synoptic diagram;
Fig. 2 carries zinc liquid structural representation for JUMPS Automated Supplemental System adopts electromagnetic pump;
Fig. 3 carries zinc liquid structural representation for JUMPS Automated Supplemental System adopts pneumatic process.
Wherein, Reference numeral
1 steel wire, 2,10,12,16,19,29 induction heaters
3-1 zinc reaction chamber leading portion 3-2 zinc reaction chamber interlude
3-3 zinc reaction chamber back segment 4-1,4-2 zinc liquid level
5-1,5-2 Wirewinding roller 6-1 straightening roll
6-2 take off roll 7 gas transmission conduits
Outer cover behind the outer cover 8-2 before the 8-1
Zinc groove in the middle of 9 support rolls 11
13 molten zinc groove 14 electromagnetic pumps
17 zinc ingot metal feeding mouth 18-1,18-2 sealed door
20,24 defeated zinc pipe roads, 22 wiping arrangements
23 refrigerating units, 25 fluid level controllers
27 elevated pressure nitrogen blowing mouths, 28 relief valves
Embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and principle of work are done concrete description:
See also the zinc-plated system architecture synoptic diagram of Fig. 1.
A kind of airtight wire galvanization device of the utility model; comprise: zinc-plated system and JUMPS Automated Supplemental System; as shown in Figure 1; zinc-plated system comprises; airtight zinc reaction chamber; with the airtight preceding outer cover 8-1 that is connected of zinc reaction chamber front end with the airtight back outer cover 8-2 that is connected in zinc reaction chamber rear end; the zinc reaction chamber comprises again; the 3-2 of by-level portion is horizontally disposed with; before; back two rake 3-1; 3-3 is obliquely installed; the angle that is become with level is 10 °～90 °, and its outside is provided with induction heater 10, and the front and back angle can be selected identically also can select difference; three ones are rectangular cross-section; three ones cross dimensions is identical, and the liquid zinc amount in the reaction chamber is about 1～10L, sets gradually straightening roll 6-1 in preceding outer cover 8-1; the induction heater 2 of ccontaining many steel wires and support roll 9; set gradually wiping arrangement 22 and refrigerating unit 23 in the back outer cover, on preceding outer cover; on the back outer cover; before the zinc reaction chamber; be respectively equipped with shielding gas gas transmission conduit 7 on the back segment, outside the outer cover of back, also be provided with support roll 9 and take off roll 6-2.
See also the structural representation of Fig. 2 and two kinds of different embodiments of Fig. 3 JUMPS Automated Supplemental System.
As shown in the figure, JUMPS Automated Supplemental System comprises: with the airtight middle zinc groove 11 that is connected of zinc reaction chamber with the middle zinc groove 11 airtight molten zinc grooves 13 that are connected, middle zinc groove is provided with fluid level controller 25, induction heater 12 and gas transmission conduit 7, molten zinc groove 13 is provided with zinc ingot metal feeding mouth 17, zinc ingot metal feeding mouth 17 is for being arranged on the pipeline at molten zinc groove 13 tops, two sealed door 18-1 and 18-2 are set in pipeline at a certain distance, the zinc reaction chamber links to each other by defeated zinc pipe road 24 with middle zinc groove 11, defeated zinc pipe road 24 is provided with induction heater 16, middle zinc groove 11 links to each other by defeated zinc pipe road 20 with molten zinc groove 13, defeated zinc pipe road 20 is provided with induction heater 19, and the liquid level of zinc liquid should keep level consistent in the zinc liquid in the middle zinc groove 11 and the zinc reaction chamber.
As shown in Figure 2, a kind of embodiment of the utility model is that JUMPS Automated Supplemental System adopts electromagnetic pump to carry zinc liquid, at molten zinc groove and 20 junctions, defeated zinc pipe road electromagnetic pump 14 is set.
In the galvanizing process of steel wire 1, the zinc liquid that coating is taken away because the hydraulic action of zinc liquid in 11 flows in 3-1,3-2, the 3-3 automatically by defeated zinc pipe road 24, keeps its liquid level constant.The 25th, fluid level controller after the liquid level in 11 descends, feeds back to electromagnetic pump 14,14 by 25 with instruction and starts, and the zinc liquid in the molten zinc groove 13 is injected 11 by defeated zinc pipe road 20.When works better, regulate the flow of electromagnetic pump 14, make it be conveyed into 11 liquid zinc amount and zinc-plated reaction chamber 3-1,3-2,3-3 because the zinc liquid measure that zinc coating is taken away equates, the liquid level of zinc liquid remains constant, and the zinc liquid measure in the just zinc-plated chamber 3-1,3-2,3-3 is constant and equates with height in 11.
As shown in Figure 3, the another kind of embodiment of the utility model is that JUMPS Automated Supplemental System adopts pneumatic process to carry zinc liquid.Zinc liquid is transported to 11 from 13 also can use pneumatic process.By 27 input elevated pressure nitrogen N2,13 liquid level is sent to 11 with zinc liquid via 20 under the effect of high pressure N2 in Fig. 3, regulates 13 by the relief valve 28 of 25 feedback control N2 again and is sent to 11 flow.
Zinc ingot metal is added by charging opening 17.Two sealed door 18-1,18-2 are arranged in 17, open 18-1 earlier, zinc ingot metal is added, close 18-1, open 18-2 again, zinc ingot metal enters molten groove 13,13 adopt induction heating type or the heating of interior heat pipe, are controlled automatically and the setting zinc liquid temperature by PID, for example set 450 ℃ ± 2 ℃.
29 is induction heaters of 13, and 12 is induction heaters of 11, the 10th, and the induction heater of 3-1,3-2,3-3,16 is induction heaters of 24, and 19 is induction heaters of 20, and 12 is induction heaters of 11.All be the constant temperature that is used to keep indoor zinc liquid.Certainly can also adopt other embodiment, 11,13 also can heat with internal heated type electric heated pipe, and 20,24 also can be heated by resistive.
The liner of the zinc-plated reaction chamber 3-1 of the utility model, 3-2,3-3, process tank 11, molten zinc groove 13 and defeated zinc pipe road 24 and 20 all adopts pottery.Wirewinding roller 5-1,5-2 also adopt pottery, not corroded by zinc liquid, store in the course of conveying metallic contact such as steel, iron of all getting along well in the fusing of zinc liquid.
Can heat many steel wires simultaneously in the induction heater 2, heat-up time is extremely short, about 1 second internal heating to 450 ℃.Many steel wires (for example 4 or more steel wires) heat with 100m/min or higher speed and are zinc-plated, reach high throughput.
The volume of molten zinc groove 13 is less than 1t, and middle storage zinc groove 11 is less than 0.5t.
The utlity model has following characteristics and marked improvement:
1) as shown in Figure 1, steel wire enters zinc-plated chamber 3-1 and be heated to the temperature identical with galvanizing flux in the past in induction heater 2.Zinc-plated chamber 3-1,3-2,3-3 do not need to heat the function of steel wire 1, a simple zinc-plated reactivity.
2) as shown in Figure 2, the zinc liquid of zinc-plated chamber 3-1,3-2,3-3 is flowed into automatically by centre storage zinc groove 11, and the height of its zinc liquid is a constant.
3) will melt being fit to and the liquid zinc of zinc-plated temperature storage zinc groove 11 in the middle of the input continuously quantitatively in the zinc groove 13 by liquid surface height controlling device 25 and electromagnetic pump 14, keep its zinc liquid constant height.Zinc-plated chamber 3-1,3-2,3-3 do not need the function of molten zinc.
4) conveying of liquid zinc can be adopted electromagnetic pump 14, also can adopt air pressure type, in molten zinc groove 13, inject highly compressed nitrogen, can be transported to 11 by 20 by liquid zinc, perhaps liquid zinc is transported to 11, does not have the wearing and tearing and the etch of machinery between handling machinery and the liquid zinc by electromagnetic pump 14.Rare gas element N2 or reducing gas H2 inject induction heater 2, zinc reaction chamber 3-1,3-3, middle zinc groove 11 and molten zinc groove 13 respectively by gas transmission conduit 7; steel wire 1 is to heat under the protection of N2 or H2; liquid zinc in 3-1, the 3-3,11 and 13 is also isolated with air under the protection of N2 or H2; Steel Wire Surface does not produce oxidation, and zinc liquid can not produce oxidation yet.Eliminate the loss and the coating defect of the zinc oxide of oxidation generation.
5) liner in the zinc-plated reaction chamber 3-1 that contacts with zinc liquid, 3-2,3-3, middle zinc groove 11, molten zinc groove 13 and defeated zinc pipe road 20,24 all is a pottery, be not subjected to the etch of zinc liquid, do not produce iron molecule and be dissolved in cadmia in the zinc liquid, reduced the consumption of zinc, having improved the quality of coating, is the resource-conserving mode of production.
6) heating of steel wire 1 is many heating simultaneously.Many steel wires 1 enter zinc-plated reaction chamber 3-1,3-2,3-3.Because 3-1,3-2,3-3 need only the furling plating reactivity, compole is short during immersion plating, and productivity is very high, reduces the formation of Fe-Zn alloy layer simultaneously, and the fragility of coating greatly reduces.
7) all zinc liquid liquid levels are all isolated with air under the protection of N2 or H2, are the zinc-plated modes of closed pipeline formula, do not have zinc to evaporate in the environment on every side, are the environmentally friendly modes of production.
8) very little (about 1～5L), molten zinc groove 13 is less than 1t, and middle storage zinc groove 11 is convenient for changing and keeps in repair less than 0.5t for the volume of zinc-plated reaction chamber 3-1,3-2,3-3.
9) adjust skew angle α and β, can adapt to the zinc-plated of different diameter steel wire.
10) the utility model is applicable to the hot dip of steel wire zinc-aluminium (ZnAl) of Φ 1～Φ 6, also is applicable to the hot dip process of aluminium (Al) alloy, lead (Pb) tin (Sn) alloy.
11) the utility model also is applicable to the hot dip process of steel band.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (11)
1. airtight wire galvanization device, it is characterized in that, comprise: zinc-plated system and JUMPS Automated Supplemental System, described zinc-plated system comprises, airtight zinc reaction chamber, with the airtight preceding outer cover that is connected of described zinc reaction chamber front end with the airtight back outer cover that is connected in described zinc reaction chamber rear end, be provided with induction heater and the support roll that heats a steel wire at least in the outer cover before described, be provided with refrigerating unit in the outer cover of described back, on the described preceding outer cover, on the back outer cover, be respectively equipped with shielding gas gas transmission conduit on the zinc reaction chamber, before described zinc reaction chamber comprises, back two rakes, with by-level portion, the outside is provided with induction heater; Described JUMPS Automated Supplemental System comprises, with the airtight middle zinc groove that is connected of described zinc reaction chamber with the airtight molten zinc groove that is connected of middle zinc groove, the zinc groove is provided with fluid level controller, heating unit and shielding gas gas transmission conduit in the middle of described, and described molten zinc groove is provided with the feeding mouth and the heating unit of band sealed door; In the middle of described in the zinc groove in zinc liquid and the described zinc reaction chamber liquid level of zinc liquid keep level consistent automatically.
2. airtight wire galvanization device according to claim 1 is characterized in that, described molten zinc groove is provided with electromagnetic pump.
3. airtight wire galvanization device according to claim 1 is characterized in that, described molten zinc groove is provided with elevated pressure nitrogen blowing mouth and coupled relief valve.
4. according to claim 1,2 or 3 described airtight wire galvanization devices, it is characterized in that, described zinc reaction chamber and described in the middle of the zinc groove, described in the middle of zinc groove and described molten zinc groove, be respectively arranged with induction heater or resistance heater by defeated zinc pipe road on the continuous and defeated zinc pipe road respectively.
5. according to claim 1,2 or 3 described airtight wire galvanization devices, it is characterized in that forward and backward two angles that form between described zinc reaction chamber forward and backward two ones and the by-level portion are that 10 °～90 ° and forward and backward two angles are identical or different.
6. according to claim 1,2 or 3 described airtight wire galvanization devices, it is characterized in that, be positioned at described refrigerating unit in the outer cover of described back and also be provided with wiping arrangement before.
7. according to claim 1,2 or 3 described airtight wire galvanization devices, it is characterized in that, between described induction heater, also be provided with straightening roll in the described preceding outer cover; Be positioned at described forward and backward two rakes in the described zinc reaction chamber and described by-level portion junction also is provided with Wirewinding roller; Described back outer cover also is provided with support roll and take off roll outward.
8. according to claim 1,2 or 3 described airtight wire galvanization devices, it is characterized in that described feeding mouth is the pipeline that is arranged on described molten zinc groove top, described sealed door is two and is arranged at a certain distance in this pipeline.
9. according to claim 1,2 or 3 described airtight wire galvanization devices, it is characterized in that, be provided with liner in described zinc reaction chamber, middle zinc groove, molten zinc groove and the defeated zinc pipe road.
10. airtight wire galvanization device according to claim 9 is characterized in that described liner is a ceramic member.
11., it is characterized in that described heating unit is induction heater or electric tube heater according to claim 1,2 or 3 described airtight wire galvanization devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201035094U CN201024207Y (en) | 2007-02-07 | 2007-02-07 | Closed steel wire galvanizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201035094U CN201024207Y (en) | 2007-02-07 | 2007-02-07 | Closed steel wire galvanizing device |
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| Publication Number | Publication Date |
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| CN201024207Y true CN201024207Y (en) | 2008-02-20 |
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ID=39098061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201035094U Expired - Fee Related CN201024207Y (en) | 2007-02-07 | 2007-02-07 | Closed steel wire galvanizing device |
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| CN (1) | CN201024207Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388117A (en) * | 2013-07-23 | 2013-11-13 | 江苏宝钢精密钢丝有限公司 | Zinc-coated steel wire as well as manufacturing method and hot-dip galvanizing equipment thereof |
| CN104451496A (en) * | 2014-12-31 | 2015-03-25 | 夏征 | Steel coating device and production method thereof |
| CN105401121A (en) * | 2009-02-04 | 2016-03-16 | 尤米科尔公司 | Process For Coating Discrete Articles With A Zinc-based Alloyed Layer |
| CN105839041A (en) * | 2016-04-14 | 2016-08-10 | 上海大学 | Hot-dipping technological method and device for preparing component gradient alloy material |
| CN106222596A (en) * | 2016-08-31 | 2016-12-14 | 浙江海力股份有限公司 | A kind of environment-friendly type galvanizing by dipping no acidwashing craft |
| CN107587090A (en) * | 2017-08-29 | 2018-01-16 | 重庆鑫盟精密模具有限公司 | The galvanizing system of mould processing wire electrode |
| CN108220854A (en) * | 2018-01-19 | 2018-06-29 | 天津市工大镀锌设备有限公司 | A kind of long material horizontal hot plating equipment and hot-dipping method |
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2007
- 2007-02-07 CN CNU2007201035094U patent/CN201024207Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401121A (en) * | 2009-02-04 | 2016-03-16 | 尤米科尔公司 | Process For Coating Discrete Articles With A Zinc-based Alloyed Layer |
| CN103388117A (en) * | 2013-07-23 | 2013-11-13 | 江苏宝钢精密钢丝有限公司 | Zinc-coated steel wire as well as manufacturing method and hot-dip galvanizing equipment thereof |
| CN103388117B (en) * | 2013-07-23 | 2015-09-23 | 江苏宝钢精密钢丝有限公司 | A kind of galvanized steel wire and manufacture method thereof and hot-galvanizing equipment |
| CN104451496A (en) * | 2014-12-31 | 2015-03-25 | 夏征 | Steel coating device and production method thereof |
| CN105839041A (en) * | 2016-04-14 | 2016-08-10 | 上海大学 | Hot-dipping technological method and device for preparing component gradient alloy material |
| CN105839041B (en) * | 2016-04-14 | 2018-08-07 | 上海大学 | A kind of the or immersion method and its equipment of prepared composition graded alloy material |
| CN106222596A (en) * | 2016-08-31 | 2016-12-14 | 浙江海力股份有限公司 | A kind of environment-friendly type galvanizing by dipping no acidwashing craft |
| CN107587090A (en) * | 2017-08-29 | 2018-01-16 | 重庆鑫盟精密模具有限公司 | The galvanizing system of mould processing wire electrode |
| CN108220854A (en) * | 2018-01-19 | 2018-06-29 | 天津市工大镀锌设备有限公司 | A kind of long material horizontal hot plating equipment and hot-dipping method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20110207 |