CN106111458A - A kind of full-automatic inside and outside operational approach being coated with coating line of steel conduit - Google Patents

A kind of full-automatic inside and outside operational approach being coated with coating line of steel conduit Download PDF

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Publication number
CN106111458A
CN106111458A CN201610685656.0A CN201610685656A CN106111458A CN 106111458 A CN106111458 A CN 106111458A CN 201610685656 A CN201610685656 A CN 201610685656A CN 106111458 A CN106111458 A CN 106111458A
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CN
China
Prior art keywords
steel pipe
coated
plastic
interior
outside
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.)
Granted
Application number
CN201610685656.0A
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Chinese (zh)
Other versions
CN106111458B (en
Inventor
刘治军
陈全奎
王群涛
温晓园
王睿
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Luoyang Gudrun New Material Technology Co Ltd
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Luoyang Gudrun New Material Technology Co Ltd
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Publication date
Application filed by Luoyang Gudrun New Material Technology Co Ltd filed Critical Luoyang Gudrun New Material Technology Co Ltd
Priority to CN201610685656.0A priority Critical patent/CN106111458B/en
Publication of CN106111458A publication Critical patent/CN106111458A/en
Application granted granted Critical
Publication of CN106111458B publication Critical patent/CN106111458B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/14Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C13/00Means for manipulating or holding work, e.g. for separate articles
    • B05C13/02Means for manipulating or holding work, e.g. for separate articles for particular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C7/00Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work
    • B05C7/005Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work by devices in contact with moving work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/04Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
    • B05C9/045Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work in which the opposite sides of the work are the internal and external surfaces of hollow articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/002Pretreatement

Abstract

The full-automatic inside and outside operational approach being coated with coating line of a kind of steel conduit, the processing platform of pipe plastic coating is arranged on above the conplane transporter of straight line, and four sections of processing platforms of steel pipe are respectively set to: internal plastic coating section, preheating section, cooling section, blanking section;Steel pipe is axially displaceable in the rust cleaning hole of outer derusting device by two row's rubber delivery wheels and carries out outer rust cleaning;Steel pipe is placed on above interior rust cleaning feeding device and carries out interior rust cleaning;Carrying out medium-frequency electrical heating by heater, internal plastic coating device carries out plastic-coated to steel pipe inner wall;Steel pipe is axially displaceable in the hole of outer plastic-coated device and carries out outer plastic-coated;Steel tube end part is progressed in chiller and is cooled down by the steel pipe of the external plastic-coated of the shower water of water tank;By after the assay was approved, pack, warehouse-in;The inside and outside rust cleaning of the present invention, heating, inside and outside plastic-coated, that cooling system controls full-automatic production cost continuously is low, and environmental protection and energy saving are pollution-free, it is simple to management quality is high, it is achieved the production to different tube diameters.

Description

A kind of full-automatic inside and outside operational approach being coated with coating line of steel conduit
Technical field
The present invention relates to the pipeline anticorrosion of steel conduit and produces equipment, and the full-automatic inside and outside plastic-coated of a kind of steel conduit is raw Produce the operational approach of line.
Background technology
At present, plastic-coated steel is a kind of novel efficient corrosion resisting steel, has antiseptic property excellent, and compressive resistance is high, makes The features such as using the life-span long, inner surface is smooth, and liquid flow properties is good so that it is rapidly be the accreditation in market.But, China is coated with Plastic Steel Pipe production Technology equipment and products thereof present situation, still in developmental stage, is all deposited compared with the most flourishing country In many gaps.In anti-corrosive steel tube produces, particularly in big anticorrosion steel pipe with small calibre produces, the production equipment used Being independent mostly, each operation independently produces, and at present, domestic have the producer of pipeline system large-scale production also seldom, greatly Majority is small-scale production, from Technology, equipment to product quality, production efficiency, still in starting developmental stage, this life There is time-consuming length, big energy-consuming in product mode, dust is many, pollution is big;In view of above-mentioned many reasons, it is proposed that a kind of steel conduit complete The most inside and outside operational approach being coated with coating line.
Summary of the invention
The invention aims to overcome the most domestic in anti-corrosive steel tube produces, particularly at big small-bore anticorrosive steel During pipe produces, the production equipment used is independent mostly, and each operation independently produces, and at present, domestic have streamline The producer of formula large-scale production is also few, and great majority are small-scale production, from Technology, equipment to product quality, produces effect Rate, still in starting developmental stage, there is time-consuming length, big energy-consuming in this mode of production, dust is many, pollution is big;By reasonably Design, it is provided that the full-automatic inside and outside operational approach being coated with coating line of a kind of steel conduit, the present invention be capable of from inside and outside rust cleaning, Heating, inside and outside plastic-coated, cooling are controlled full-automatic production continuously by program control system, improve production efficiency, reduce and produce into This, eliminate and pollute, it is necessary to design one and be conducive to improving product quality, being advantageously implemented energy-saving and environmental protection, can be continuously produced Automatic production line, to solve the problem encountered in production process;Rational deployment, it is simple to management, labor intensity reduces, accounts for Ground area is little, and production efficiency is high, energy-conserving and environment-protective, it is possible to meet the Production requirement of different tube diameters.
The present invention to achieve these goals, adopts the following technical scheme that, the full-automatic inside and outside plastic-coated of a kind of steel conduit is raw Producing the operational approach of line, the full-automatic inside and outside of described steel conduit is coated with coating line, is by steel pipe, material loading platform, outer rust cleaning dress Put, transporter, interior derusting device, internal plastic coating device, heater, outer plastic-coated device, chiller, blanking device, control System, interior rust cleaning feeding device, steel pipe plug seat are constituted;The processing platform of pipe plastic coating is arranged on the conplane biography of straight line Sending above device, the processing platform of pipe plastic coating arranges four sections at grade, and four sections of processing platforms of steel pipe are respectively provided with For: internal plastic coating section, preheating section, cooling section, blanking section;
The preheating section front portion of pipe plastic coating processing platform arranges transporter, and preheating section one end arranges internal plastic coating device, in advance The hot arc other end arranges heater, and heater side arranges outer plastic-coated device, between preheating section and the transporter of steel pipe Arranging interior rust cleaning feeding device, interior rust cleaning feeding device side arranges steel pipe plug seat, interior rust cleaning feeding device opposite side is arranged Interior derusting device, rust cleaning station, steel pipe on interior rust cleaning station in presetting between steel pipe plug seat and interior derusting device;
Transporter straight line at grade arranges two sections of traversing transfer stations, and above transporter, both sides arrange two rows Rubber delivery wheel, two sections of transfer stations of transporter are respectively as follows: feeding section, processing stage casing, the feeding section of transporter and processing Arranging the rust cleaning hole of reserved steel pipe in the middle part of outer derusting device between stage casing, the feeding section front portion of transporter arranges material loading platform;
The cooling section of pipe plastic coating processing platform arranges chiller, and chiller side arranges outer plastic-coated device, cooling Device opposite side arranges blanking section, and chiller is provided above water tank, and steel pipe pore is reserved at middle part;Chiller side arranges control System processed;The blanking section side of pipe plastic coating processing platform arranges blanking device;
Before steel pipe carries out plastic-coated, the working procedure of control system starting device, steel pipe is rolled into transmission by material loading platform Between two row's rubber delivery wheels of device, the steel pipe tilt rotation by two row's rubber delivery wheels, tilt rotation makes steel pipe axial Moving in the rust cleaning hole of outer derusting device, outer derusting device is eliminated rust to outside steel pipe with sandblasting by firm brush wheel;
Steel pipe, by, while outer derusting device, having eliminated rust outside steel pipe, stops turning except rear transporter outside steel pipe Dynamic;
After transporter stops operating, steel pipe is placed on above interior rust cleaning feeding device, blocks up when steel pipe is rolled into steel pipe Stopping during headstock, one end of steel pipe is fixed by the plug of steel pipe plug seat, the interior derusting device of the steel pipe other end starts, interior rust cleaning Steel pipe inner wall, by being axially displaceable in steel pipe, is eliminated rust with sandblasting by device by firm brush wheel, and interior derusting device is axial While shift motion completes, the interior rust cleaning in steel pipe completes, and interior derusting device is return in situ automatically;
After interior rust cleaning in steel pipe completes, steel pipe is by being rolled into the preheating section of pipe plastic coating processing platform, by adding Thermal carries out medium-frequency electrical heating, and after steel pipe is heated, internal plastic coating device moves axially in steel pipe, and internal plastic coating device is to steel pipe Inwall carries out plastic-coated, and the axial shift motion of internal plastic coating device completes, and steel pipe inner wall plastic-coated completes simultaneously, and internal plastic coating device returns former Position.
After steel pipe inner wall plastic-coated completes, by the rotation steel pipe of two row's rubber delivery wheels, steel pipe is axially displaceable into outer painting In the hole of molding apparatus, outer plastic-coated device, to carrying out outer plastic-coated outside steel pipe, while steel pipe is all by outer plastic-coated device, completes Whole outer plastic-coated outside steel pipe;
While gradually carrying out outer plastic-coated outside steel pipe, the steel tube end part of outer plastic-coated progresses in chiller, cooling Device is cooled down by the steel pipe of the external plastic-coated of the shower water of water tank, after the steel pipe of outer plastic-coated is fully completed cooling, and outer plastic-coated Steel pipe moved axially to above the blanking device of blanking section by two row's rubber delivery wheels;
After steel pipe completes the cooling of inside and outside plastic-coated, moved to ground by blanking device, by after the assay was approved, pack, enter Storehouse.
Provide the benefit that: the present invention is capable of from inside and outside rust cleaning, heating, inside and outside plastic-coated, cooling by program control system Control full-automatic production continuously, improve production efficiency, reduce production cost, eliminate and pollute, it is necessary to design one beneficially Improving product quality, be advantageously implemented energy-saving and environmental protection, the automatic production line that can be continuously produced, to solve in production process Problem encountered;Rational deployment, it is simple to management, labor intensity reduces, and floor space is little, and production efficiency is high, energy-conserving and environment-protective, energy Enough meet the Production requirement of different tube diameters.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is general assembly structural representation;
In Fig. 1: steel pipe 1, material loading platform 2, outer derusting device 3, transporter 4, interior derusting device 5, internal plastic coating device 6, Heater 7, outer plastic-coated device 8, chiller 9, blanking device 10, control system 11, interior rust cleaning feeding device 12, steel pipe are stifled Headstock 13.
Detailed description of the invention
The present invention is described in further detail with detailed description of the invention below in conjunction with embodiment:
Embodiment 1
The processing platform of steel pipe 1 plastic-coated is arranged on above the conplane transporter 4 of straight line, adding of steel pipe 1 plastic-coated Work platform arranges four sections at grade, and four sections of processing platforms of steel pipe 1 are respectively set to: internal plastic coating section, preheating section, cooling Section, blanking section;
The preheating section front portion of steel pipe 1 plastic-coated processing platform arranges transporter 4, and preheating section one end arranges internal plastic coating device 6, The preheating section other end arranges heater 7, and heater 7 side arranges outer plastic-coated device 8, and the preheating section of steel pipe 1 fills with transmitting Putting and arrange interior rust cleaning feeding device 12 between 4, interior rust cleaning feeding device 12 side arranges steel pipe plug seat 13, interior rust cleaning feeding dress Put 12 opposite sides and interior derusting device 5 is set, rust cleaning station, interior rust cleaning in presetting between steel pipe plug seat 13 and interior derusting device 5 Steel pipe 1 on station
Transporter 4 straight line at grade arranges two sections of traversing transfer stations, and transporter 4 both sides above arrange two Row rubber delivery wheel, two sections of transfer stations of transporter 4 be respectively as follows: feeding section, processing stage casing, the feeding section of transporter 4 with Arranging the rust cleaning hole of reserved steel pipe 1 in the middle part of outer derusting device 3 between processing stage casing, the feeding section front portion of transporter 4 is arranged Material platform 2;
The cooling section of steel pipe 1 plastic-coated processing platform arranges chiller 9, and chiller 9 side arranges outer plastic-coated device 8, Chiller 9 opposite side arranges blanking section, and chiller 9 is provided above water tank, and steel pipe 1 pore is reserved at middle part;Chiller 9 one Side arranges control system 11;The blanking section side of steel pipe 1 plastic-coated processing platform arranges blanking device 10;
Before steel pipe 1 carries out plastic-coated, the working procedure of control system 11 starting device, steel pipe 1 is rolled into by material loading platform 2 Between two row's rubber delivery wheels of transporter 4, the steel pipe 1 tilt rotation by two row's rubber delivery wheels, tilt rotation makes steel Pipe 1 is axially displaceable in the rust cleaning hole of outer derusting device 3, and outer derusting device 3 is entered outside steel pipe 1 with sandblasting by firm brush wheel Row rust cleaning;
Steel pipe 1, by, while outer derusting device 3, having eliminated rust outside steel pipe 1, stops except rear transporter 4 outside steel pipe 1 Spline is moved.
Embodiment 2
After transporter 4 stops operating, steel pipe 1 is placed on above interior rust cleaning feeding device 12, when steel pipe 1 is rolled into steel Stopping during pipe plug headstock 13, one end of steel pipe 1 is fixed by the plug of steel pipe plug seat 13, the interior derusting device 5 of steel pipe 1 other end Starting, steel pipe 1 inwall, by being axially displaceable in steel pipe 1, is eliminated rust with sandblasting by interior derusting device 5 by firm brush wheel, Interior derusting device 5 moves axially while stroke completes, and the interior rust cleaning in steel pipe 1 completes, and interior derusting device 5 is return former automatically Position;
Embodiment 3
After interior rust cleaning in steel pipe 1 completes, steel pipe 1, by being rolled into the preheating section of steel pipe 1 plastic-coated processing platform, passes through Heater 7 carries out medium-frequency electrical heating, and after steel pipe 1 is heated, internal plastic coating device 6 moves axially in steel pipe 1, internal plastic coating device 6 pairs of steel pipe 1 inwalls carry out plastic-coated, and internal plastic coating device 6 moves axially stroke and completes, and steel pipe 1 coating for inner wall completes simultaneously, internal plastic coating Device 6 returns in situ.
Embodiment 4
After steel pipe 1 coating for inner wall completes, by the rotation steel pipe 1 of two row's rubber delivery wheels, outside steel pipe 1 is axially displaceable into In the hole of plastic-coated device 8, outer plastic-coated device 8 to carrying out outer plastic-coated outside steel pipe 1, steel pipe 1 all same by outer plastic-coated device 8 Time, complete the whole outer plastic-coated outside steel pipe 1.
Embodiment 5
While gradually carrying out outer plastic-coated outside steel pipe 1, steel pipe 1 end of outer plastic-coated progresses in chiller 9, cold Radiator cooler 9 is cooled down, after the steel pipe 1 of outer plastic-coated is fully completed cooling, outward by the steel pipe 1 of the external plastic-coated of shower water of water tank The steel pipe 1 of plastic-coated is moved axially to above the blanking device 10 of blanking section by two row's rubber delivery wheels.
Embodiment 6
After steel pipe 1 completes the cooling of inside and outside plastic-coated, moved to ground by blanking device 10, by after the assay was approved, wrap Dress, warehouse-in.

Claims (6)

1. the full-automatic inside and outside operational approach being coated with coating line of steel conduit, the full-automatic inside and outside plastic-coated of described steel conduit Production line, is by steel pipe (1), material loading platform (2), outer derusting device (3), transporter (4), interior derusting device (5), internal plastic coating Device (6), heater (7), outer plastic-coated device (8), chiller (9), blanking device (10), control system (11), interior remove Rust feeding device (12), steel pipe plug seat (13) are constituted;It is characterized in that: the processing platform of steel pipe (1) plastic-coated is arranged on straight line Conplane transporter (4) above, the processing platform of steel pipe (1) plastic-coated arranges four sections at grade, steel pipe (1) Four sections of processing platforms be respectively set to: internal plastic coating section, preheating section, cooling section, blanking section;
The preheating section front portion of steel pipe (1) plastic-coated processing platform arranges transporter (4), and preheating section one end arranges internal plastic coating device (6), the preheating section other end arranges heater (7), and heater (7) side arranges outer plastic-coated device (8), steel pipe (1) pre- Arranging interior rust cleaning feeding device (12) between hot arc and transporter (4), interior rust cleaning feeding device (12) side arranges steel pipe and blocks up Headstock (13), interior rust cleaning feeding device (12) opposite side arrange interior derusting device (5), steel pipe plug seat (13) and interior derusting device (5) rust cleaning station, steel pipe (1) on interior rust cleaning station in presetting between;
Transporter (4) straight line at grade arranges two sections of traversing transfer stations, and transporter (4) both sides above arrange two Row's rubber delivery wheel, two sections of transfer stations of transporter (4) are respectively as follows: feeding section, processing stage casing, the feeding of transporter (4) The rust cleaning hole of the reserved steel pipe (1) in outer derusting device (3) middle part, the feeding section of transporter (4) are set between section and processing stage casing Front portion arranges material loading platform (2);
The cooling section of steel pipe (1) plastic-coated processing platform arranges chiller (9), and chiller (9) side arranges outer plastic-coated device (8), chiller (9) opposite side arranges blanking section, and chiller (9) is provided above water tank, and steel pipe (1) pore is reserved at middle part; Chiller (9) side arranges control system (11);The blanking section side of steel pipe (1) plastic-coated processing platform arranges blanking device (10);
Before steel pipe (1) carries out plastic-coated, the working procedure of control system (11) starting device, steel pipe (1) is rolled by material loading platform (2) Move between two row's rubber delivery wheels of transporter (4), the steel pipe (1) tilt rotation by two row's rubber delivery wheels, tilt Rotation makes steel pipe (1) be axially displaceable in the rust cleaning hole of outer derusting device (3), and outer derusting device (3) is by firm brush wheel and spray Eliminated rust in steel pipe (1) outside by sand;
Steel pipe (1) is by while outer derusting device (3), has eliminated rust in steel pipe (1) outside, and dress is transmitted except rear in steel pipe (1) outside Put (4) to stop operating.
The full-automatic inside and outside operational approach being coated with coating line of a kind of steel conduit the most according to claim 1, its feature exists In: after transporter (4) stops operating, steel pipe (1) is placed on interior rust cleaning feeding device (12) above, when steel pipe (1) rolls Stopping to during steel pipe plug seat (13), one end of steel pipe (1) is fixed by the plug of steel pipe plug seat (13), steel pipe (1) other end Interior derusting device (5) start, interior derusting device (5) is by being axially displaceable in steel pipe (1), by firm brush wheel and sandblasting pair Steel pipe (1) inwall eliminates rust, and interior derusting device (5) moves axially while stroke completes, and the interior rust cleaning in steel pipe (1) is complete Becoming, interior derusting device (5) is return in situ automatically.
The full-automatic inside and outside operational approach being coated with coating line of a kind of steel conduit the most according to claim 1, its feature exists In: after the interior rust cleaning in steel pipe (1) completes, steel pipe (1) is by being rolled into the preheating section of steel pipe (1) plastic-coated processing platform, logical Crossing heater (7) and carry out medium-frequency electrical heating, after steel pipe (1) is heated, internal plastic coating device (6) moves axially in steel pipe (1), Internal plastic coating device (6) carries out plastic-coated to steel pipe (1) inwall, and internal plastic coating device (6) moves axially stroke and completes, steel pipe (1) simultaneously Coating for inner wall completes, and internal plastic coating device (6) returns in situ.
The full-automatic inside and outside operational approach being coated with coating line of a kind of steel conduit the most according to claim 1, its feature exists In: after steel pipe (1) coating for inner wall completes, by the rotation steel pipe (1) of two row's rubber delivery wheels, steel pipe (1) is axially displaceable into In the hole of outer plastic-coated device (8), outer plastic-coated device (8) carries out outer plastic-coated to steel pipe (1) outside, and steel pipe (1) is all by outer painting While molding apparatus (8), complete the whole outer plastic-coated of steel pipe (1) outside.
The full-automatic inside and outside operational approach being coated with coating line of a kind of steel conduit the most according to claim 1, its feature exists In: while steel pipe (1) outside gradually carries out outer plastic-coated, steel pipe (1) end of outer plastic-coated progresses in chiller (9), Chiller (9) is cooled down by the steel pipe (1) of the external plastic-coated of shower water of water tank, and the steel pipe (1) of outer plastic-coated is fully completed After cooling, the steel pipe (1) of outer plastic-coated is moved axially to blanking device (10) top of blanking section by two row's rubber delivery wheels.
The full-automatic inside and outside operational approach being coated with coating line of a kind of steel conduit the most according to claim 1, its feature exists In: after steel pipe (1) completes the cooling of inside and outside plastic-coated, mobile to ground by blanking device (10), by after the assay was approved, pack, Warehouse-in.
CN201610685656.0A 2016-08-18 2016-08-18 A kind of full-automatic inside and outside operating method for applying coating line of steel conduit Expired - Fee Related CN106111458B (en)

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Application Number Priority Date Filing Date Title
CN201610685656.0A CN106111458B (en) 2016-08-18 2016-08-18 A kind of full-automatic inside and outside operating method for applying coating line of steel conduit

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Application Number Priority Date Filing Date Title
CN201610685656.0A CN106111458B (en) 2016-08-18 2016-08-18 A kind of full-automatic inside and outside operating method for applying coating line of steel conduit

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CN106111458B CN106111458B (en) 2018-08-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110815882A (en) * 2019-11-12 2020-02-21 于树来 Greenhouse support pipe production line

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JPH02174969A (en) * 1988-12-27 1990-07-06 Nkk Corp Uniform heating equipment for steel pipe
US20050100674A1 (en) * 2003-10-10 2005-05-12 David Brown Primerless coating of heat-sensitive substrates
CN201239702Y (en) * 2008-06-20 2009-05-20 李义财 Preheating apparatus for manufacturing steel plastic composite pipe
CN102218388A (en) * 2011-02-14 2011-10-19 广东联塑科技实业有限公司 Equipment and method for pretreating inner wall of zinc-coated steel-plastic composite pipe
CN202460942U (en) * 2011-12-19 2012-10-03 青岛宏基业塑料挤出设备有限公司 Preheating device for plastic-steel composite pipe
CN203316338U (en) * 2013-07-16 2013-12-04 天津市乾丰防腐保温工程有限公司 Novel intelligent full-automatic steel tube inside and outside plastic coating production line
CN203329935U (en) * 2013-07-25 2013-12-11 天津市乾丰防腐保温工程有限公司 Small-bore anti-corrosion steel tube full-automatic plastic-coating production line

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02174969A (en) * 1988-12-27 1990-07-06 Nkk Corp Uniform heating equipment for steel pipe
US20050100674A1 (en) * 2003-10-10 2005-05-12 David Brown Primerless coating of heat-sensitive substrates
CN201239702Y (en) * 2008-06-20 2009-05-20 李义财 Preheating apparatus for manufacturing steel plastic composite pipe
CN102218388A (en) * 2011-02-14 2011-10-19 广东联塑科技实业有限公司 Equipment and method for pretreating inner wall of zinc-coated steel-plastic composite pipe
CN202460942U (en) * 2011-12-19 2012-10-03 青岛宏基业塑料挤出设备有限公司 Preheating device for plastic-steel composite pipe
CN203316338U (en) * 2013-07-16 2013-12-04 天津市乾丰防腐保温工程有限公司 Novel intelligent full-automatic steel tube inside and outside plastic coating production line
CN203329935U (en) * 2013-07-25 2013-12-11 天津市乾丰防腐保温工程有限公司 Small-bore anti-corrosion steel tube full-automatic plastic-coating production line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110815882A (en) * 2019-11-12 2020-02-21 于树来 Greenhouse support pipe production line

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