CN107470080A - A kind of application method of metal tube hot spraying device - Google Patents
A kind of application method of metal tube hot spraying device Download PDFInfo
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- CN107470080A CN107470080A CN201710957926.3A CN201710957926A CN107470080A CN 107470080 A CN107470080 A CN 107470080A CN 201710957926 A CN201710957926 A CN 201710957926A CN 107470080 A CN107470080 A CN 107470080A
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- Prior art keywords
- metal tube
- heating furnace
- furnace
- pole
- burner hearth
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
- B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment 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
- B05D3/02—Pretreatment 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 by baking
- B05D3/0218—Pretreatment, e.g. heating the substrate
- B05D3/0236—Pretreatment, e.g. heating the substrate with ovens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment 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
- B05D3/02—Pretreatment 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 by baking
- B05D3/0254—After-treatment
- B05D3/0272—After-treatment with ovens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/146—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies to metallic pipes or tubes
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Coating By Spraying Or Casting (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Spray Control Apparatus (AREA)
Abstract
The present invention discloses a kind of application method of metal tube hot spraying device, belongs to the hot spraying technical field of metallic heat exchanging tube.The present invention comprises the following steps, step (1)：Opening rotating mechanism makes pole remain a constant speed rotation；Step (2)：Metal tube is integrally heated；Step (3)：Metal tube surface is sprayed-on upper subbing to the other end from one end；Step (4)：The furnace temperature for setting single heating furnace is bed material sintering curing temperature；Step (5)：Metal tube is integrally heated；Step (6)：Moved with the average rate of single heating furnace, metal tube surface is sprayed-on coating above to the other end from one end；Step (7)：Cylindrical shape burner hearth on single heating furnace covers metal tube completely, and metal tube is integrally heated；Step (8)：Furnace cooling is carried out to metal tube.The present invention easily can carry out overall heating to metal tube, improve the service life of metal tube surface coating in actual use.
Description
Present patent application is to be directed to Application No.：2016101080712 divisional application, the applying date of original application
For：2016-02-26, invention and created name are：A kind of metal tube hot spraying device.
Technical field
The present invention relates to a kind of metal tube spray equipment, more specifically to a kind of metal tube hot spraying device
Application method, belong to the hot spraying technical field of metallic heat exchanging tube.
Background technology
Metallic heat exchanging tube (light pipe, finned tube etc.) is to strengthen residual heat and energy in steel industry to utilize, carry out depth waste heat time
The important heat exchanger assembly received, the quality of metallic heat exchanging tube quality directly affect the heat transfer effect of heat exchanger and making for heat exchanger
Use the life-span.Heat exchanger is primarily present metallic heat exchanging tube superficial dust during recovery low-temperature flue gas or coal gas waste heat, glued at present
Knot and etching problem, by taking certain Blast Furnace Gas of Iron ＆ Steel Plants waste heat recovery as an example, from the coal that temperature caused by blast furnace is 300 DEG C or so
Gas, wet dedusting is carried out after TRT differential pressure power generations, then carry out low temperature exhaust heat recovery into heat exchange of heat pipe, moisture-laden gas enters
After entering heat exchanger, as temperature reduces, the water in coal gas constantly separates out and bonded the dust not eliminated in coal gas and is attached to together
Metal heat-exchange pipe surface, now metal heat-exchange pipe surface is in wet environment, and the corruption such as chlorine element contained in blast furnace gas
Erosion composition exists in condensate in the form of an ion, heavy corrosion can be produced to metal heat-exchange pipe surface, while tar bonds meeting sternly
Ghost image rings the heat exchange efficiency of metallic heat exchanging tube.
In the prior art, metal heat-exchange pipe surface is reduced in metallic heat exchanging tube surface spraying coating frequently with spray equipment
Dust stratification, bonding and etching problem, wherein for the spray equipment of metallic heat exchanging tube, existing related art scheme in the prior art
It is open, such as patent publication No.：The A of CN 101773891, publication date：On July 14th, 2010, invention and created name are：Small-bore gold
Belong to inside pipe wall spray equipment and spraying coating process, this application case discloses a kind of inner walls of small-caliber metallic spray equipment and spraying work
Skill, the inner walls of small-caliber metallic spray equipment of this application case include that the spray that inner walls of small-caliber metallic is sprayed can be stretched into
Rifle, the mobile device of small-caliber metallic is may move, the heater of local heating can be carried out to small-caliber metallic；This application
Case also discloses a kind of method that inner walls of small-caliber metallic is sprayed using this spray equipment, and its step is：A. by spray gun pipette tips
Stretch into metal tube；B., the metal tube to be sprayed is placed in the heating position of heater；C., movement is installed on metal tube
Device makes it to be moved along the heating part displacement of heater；D. start heater, pass through spray gun pair while moving metal tube
Inner-walls of duct is sprayed.The advantages of this application case, is：Can be simultaneously using Electrostatic Absorption and the mode of heat absorption to osculum
Caliber metal tubes inwall is sprayed, and heating position is metal tube part so as to ensure that spraying position is controllable and simple to operate.But
Above-mentioned application case also has the following disadvantages：This application case using being carried out to metal tube by the way of local heating sprays again, though
Coating poor flatness so simple to operate, but easily causing metal tube surface to spray, finally substantially reduces metal tube surface coating
Service life in actual use.
The content of the invention
1. invention technical problems to be solved
It is a primary object of the present invention to overcome the shortcomings of that existing metal tube surface coating service life is shorter, there is provided one
The application method of kind metal tube hot spraying device, overall heating easily can be carried out to metal tube, improve metal tube surface
The service life of coating in actual use.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the invention is：
The metal tube hot spraying device of the present invention, including rotating mechanism, heating arrangements, spray body, travel mechanism, bottom
Seat and pole；
The base is provided with track, and the heating arrangements are arranged on the track of base, and heating arrangements are provided with spraying
Mechanism, the travel mechanism are used to drive heating arrangements to slide on the track of base；The pole passes through heating arrangements, pole
Both ends be connected with the rotating mechanism, metal tube is cased with pole.
As the present invention metal tube hot spraying device further improve, the rotating mechanism include left socle,
Right support, left-handed rotating shaft, dextral shaft and electric rotating machine, left socle and right support are symmetrically distributed in the both ends of base, left branch
The upper end of frame, the upper end of right support are the neck that bearing is fixed with inside one, and the neck includes the lower bayonet slot being detachably connected
With upper neck；Left-handed rotating shaft is installed, left-handed rotating shaft is connected by one end of clamping device and pole on the bearing of left socle upper end
Connect, dextral shaft is installed on the bearing of right support upper end, dextral shaft is connected by clamping device and the other end of pole；Institute
The output shaft for stating electric rotating machine is connected with left-handed rotating shaft or dextral shaft.
Metal tube hot spraying device as the present invention further improves, and the heating arrangements include one or one
The heating furnace being arranged in series more than individual, each furnace bottom that heats are equipped with the movable pulley being engaged with base upper rail, Mei Gejia
Hot stove top is equipped with heating furnace handle, and the cylindrical furnace for penetrating inside heating furnace in the horizontal direction is equipped with each heating furnace
Thorax, uniform winding has resistance wire, the outer wall parcel heat-preservation cotton of cylindrical shape burner hearth on the inwall of the cylindrical shape burner hearth；The pole according to
The secondary cylindrical shape burner hearth through on each heating furnace, the axis of pole and the axis of cylindrical shape burner hearth on each heating furnace are equal
Overlap.
Metal tube hot spraying device as the present invention further improves, and the heating arrangements include a heating
Stove, a heating furnace are single heating furnace, and the spray body includes folding rack, spray gun presss from both sides and single spraying rifle, on single heating furnace
Side is fixed with folding rack close to one end of metal tube, and spray gun folder, the single spraying rifle are fixed with the free end of the folding rack
On the spray gun folder of folding rack.
Metal tube hot spraying device as the present invention further improves, and the heating arrangements include three series connection
The heating furnace of setting, three heating furnaces being arranged in series from close to metal tube one end to away from metal tube one end direction according to
It is secondary to include folding rack, spray gun folder and spray gun, 1# heating furnaces for 1# heating furnaces, 2# heating furnaces, 3# heating furnaces, the spray body
Folding rack is respectively and fixedly provided with one end away from metal tube above 2# heating furnaces, is respectively and fixedly provided with the free end of each folding rack
Spray gun is pressed from both sides, and the spray gun includes bed material spray gun and fabric spray gun, and bed material spray gun is arranged on the spray gun folder above 1# heating furnaces, face
Expect on the spray gun folder that spray gun is arranged on above 2# heating furnaces.
Metal tube hot spraying device as the present invention further improves, and the travel mechanism includes mobile motor
And chain, be respectively and fixedly provided with a mobile motor on each heating furnace, the output shaft of each mobile motor by chain with it is corresponding
Heat the movable pulley connection of furnace bottom.
Metal tube hot spraying device as the present invention further improves, and the clamping device includes two difference
Scroll chuck or axle sleeve on left-handed rotating shaft, dextral shaft, positioning hole radially, the positioning are opened up on the axle sleeve
Screw is installed in hole.
Metal tube hot spraying device as the present invention further improves, in addition to temperature control box and motor control
Case, the temperature control box are connected by Heating Furnace Control line with the conductor interface on each heating furnace, each conductor interface with it is corresponding
The resistance wire wound on cylindrical shape inboard wall of burner hearth is connected；The motor control box is connected by mobile motor control line and mobile motor
Connect, motor control box is connected by electric rotating machine control line with electric rotating machine.
The application method of the metal tube hot spraying device of the present invention, comprises the following steps,
Step (1)：Opening rotating mechanism makes pole remain a constant speed rotation, and the furnace temperature for setting single heating furnace is base material treatment temperature
60~120 DEG C of degree；
Step (2)：Single heating furnace is shifted to the metal tube being cased with pole, until the cylindrical shape burner hearth on single heating furnace is complete
Metal tube is covered entirely, 8~20min is integrally heated to metal tube；
Step (3)：Mobile single heating furnace average rate leaves metal tube, treats that metal tube exposes cylindrical shape burner hearth, by single spraying rifle pair
Metalloid pipe, moved with the average rate of single heating furnace, metal tube surface is sprayed-on upper subbing to the other end from one end；
Step (4)：The furnace temperature for setting single heating furnace is 120~180 DEG C of bed material sintering curing temperature；
Step (5)：Single heating furnace is shifted to the metal tube being cased with pole, until the cylindrical shape burner hearth on single heating furnace is complete
Metal tube is covered entirely, 10~20min is integrally heated to metal tube；
Step (6)：Mobile single heating furnace average rate leaves metal tube, treats that metal tube exposes cylindrical shape burner hearth, by single spraying rifle pair
Metalloid pipe, moved with the average rate of single heating furnace, metal tube surface is sprayed-on coating above to the other end from one end；
Step (7)：The furnace temperature for setting single heating furnace is 300~400 DEG C of fabric sintering curing temperature, and single heating furnace is shifted to
The metal tube being cased with pole, until the cylindrical shape burner hearth on single heating furnace covers metal tube completely, metal tube is integrally heated
30~45min；
Step (8)：Single heating furnace and rotating mechanism are closed, furnace cooling is carried out to metal tube.
The application method of the metal tube hot spraying device of the present invention, comprises the following steps,
Step (1)：Opening rotating mechanism makes pole remain a constant speed rotation, and the furnace temperature of setting 1# heating furnaces is base material treatment temperature
60~120 DEG C of degree, the furnace temperature of setting 2# heating furnaces are 120~180 DEG C of bed material sintering curing temperature, set the furnace temperature of 3# heating furnaces
For 300~400 DEG C of fabric sintering curing temperature；
Step (2)：1# heating furnaces are shifted to the metal tube being cased with pole, until the cylindrical shape burner hearth on 1# heating furnaces is complete
Metal tube is covered entirely, 8~20min is integrally heated to metal tube；
Step (3)：Mobile 1# heating furnace average rates leave metal tube, treat that metal tube exposes cylindrical shape burner hearth, by bed material spray gun
Metal tube is directed at, with the uniform velocity moving for 1# heating furnaces, metal tube surface is sprayed-on upper subbing to the other end from one end；
Step (4)：2# heating furnaces are shifted to the metal tube being cased with pole, until the cylindrical shape burner hearth on 2# heating furnaces is complete
Metal tube is covered entirely, 10~20min is integrally heated to metal tube；
Step (5)：Mobile 2# heating furnace average rates leave metal tube, treat that metal tube exposes cylindrical shape burner hearth, by fabric spray gun
Metal tube is directed at, is moved with the average rate of 2# heating furnaces, metal tube surface is sprayed-on coating above to the other end from one end；
Step (6)：3# heating furnaces are shifted to the metal tube being cased with pole, until the cylindrical shape burner hearth on 3# heating furnaces is complete
Metal tube is covered entirely, 30~45min is integrally heated to metal tube；
Step (7)：1# heating furnaces, 2# heating furnaces, 3# heating furnaces and rotating mechanism are closed, metal tube is carried out cold with stove
But.
3. beneficial effect
Using technical scheme provided by the invention, compared with prior art, there is following remarkable result：
(1) at present, corrosion resistance coating, which is more used in, solves the problems, such as in metal tube surface corrosion, but existing
Metal tube hot spraying device is often only suitable in the single coating of metal tube surface spraying, and the metal tube hot spraying of the present invention
Device and its application method, the base material to be sprayed is heated first, then spray bed material, bed material is burnt afterwards
Knot solidification, bed material spray fabric after solidifying levelling, solidification are finally sintered to fabric, whole process is carried out, is adapted to automatically
Metal tube surface sprays duplex coating.
(2) in metal tube hot spraying device of the invention, insertion heating in the horizontal direction is equipped with each heating furnace
The structure of the cylindrical shape burner hearth of furnace interior, the cylindrical shape burner hearth and metal tube is adapted, and the efficiency of heating surface is higher, can be easily right
Metal tube carries out overall heating, improves the service life of metal tube surface coating in actual use, and due to cylindrical furnace
Thorax simply extends in the horizontal direction, greatly reduces the size of heating furnace in vertical direction, has saved cost.
Brief description of the drawings
Fig. 1 is the structural representation of the metal tube hot spraying device of embodiment 1；
Fig. 2 is the structural representation of 1# heating furnaces in embodiment 1；
Fig. 3 is the structural representation of left socle in embodiment 1；
Fig. 4 is the structural representation for fixing metal tube in embodiment 1 using scroll chuck；
Fig. 5 is the structural representation for fixing metal tube in embodiment 3 using axle sleeve and screw；
Fig. 6 is the structural representation of the metal tube hot spraying device of embodiment 4.
Label declaration in schematic diagram：1st, base；2nd, left socle；201st, lower bayonet slot；202nd, upper neck；3rd, left-handed rotating shaft；
4th, bearing；5th, single heating furnace；501st, heating furnace handle；502nd, cylindrical shape burner hearth；503rd, resistance wire；504th, movable pulley；505th, lead
Line interface；6th, mobile motor；7th, chain；8th, folding rack；9th, spray gun presss from both sides；10th, single spraying rifle；11st, metal tube；12nd, dextral shaft；
13rd, electric rotating machine；14th, right support；15th, temperature control box；1501st, Heating Furnace Control line；16th, motor control box；1601st, mobile motor
Control line；1602nd, electric rotating machine control line；17th, scroll chuck；18th, axle sleeve；19th, screw；20th, 1# heating furnaces；21st, 2# is heated
Stove；22nd, 3# heating furnaces；23rd, bed material spray gun；24th, fabric spray gun.
Embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
With reference to Fig. 1~4, the metal tube hot spraying device of the present embodiment, including rotating mechanism, heating arrangements, flush coater
Structure, travel mechanism, base 1 and pole；Base 1 is used to support a whole set of metal tube hot spraying device, and base 1 is provided with track,
The track is used for the movement of heating furnace；Heating arrangements are arranged on the track of base 1, and heating arrangements are provided with spray body, are moved
Motivation structure is used to drive heating arrangements to slide on the track of base 1；Pole passes through heating arrangements, the both ends of pole and whirler
Structure is connected, and metal tube 11 is cased with pole.In specific the present embodiment, rotating mechanism includes left socle 2, right support 14, anticlockwise
Axle 3, dextral shaft 12 and electric rotating machine 13, left socle 2 and right support 14 are symmetrically distributed in the both ends of base 1, left socle 2
Upper end, the upper end of right support 14 are the neck that bearing 4 is fixed with inside one, and the neck includes the lower bayonet slot being detachably connected
201 and upper neck 202, specifically, lower bayonet slot 201 and upper neck 202 can mutually be fastened so that form one therebetween
Individual cylindrical cavity, in order to fixation of the bearing 4 on neck, remove；Anticlockwise is installed on the bearing 4 of the upper end of left socle 2
Axle 3, left-handed rotating shaft 3 are connected by clamping device and the left end of pole, and dextral shaft is provided with the bearing 4 of the upper end of right support 14
12, dextral shaft 12 is connected by clamping device and the right-hand member of pole, and in specific the present embodiment, clamping device includes two difference
(in the present embodiment, pole is hollow circular-tube to scroll chuck 17 on left-handed rotating shaft 3, dextral shaft 12, two three-jaw cards
Disk 17 is anti-dog chuck, and the anti-dog chuck outwards makes power fix pole inside pole, can more stably and firmly consolidate
Determine pole, it is final that axis of the metal tube 11 along itself is rotated, ensure uniform spray of the coating on the surface of metal tube 11
Apply), i.e., the right-hand member of left-handed rotating shaft 3 is provided with scroll chuck 17, and the scroll chuck 17 fixes the left end of pole, dextral shaft 12
Left end is equally provided with scroll chuck 17, and the scroll chuck 17 fixes the right-hand member of pole, can be by pole by scroll chuck 17
Conveniently and efficiently install/remove on rotating mechanism；The output shaft of electric rotating machine 13 is connected with dextral shaft 12, passes through electric rotating
Machine 13 can drive pole to remain a constant speed rotation, that is, allow the metal tube 11 being enclosed on pole to remain a constant speed rotation.Travel mechanism wraps
Mobile motor 6 and chain 7 are included, a mobile motor 6 is respectively and fixedly provided with each heating furnace, the output shaft of each mobile motor 6 is equal
Connected by chain 7 with the movable pulley 504 of corresponding heating furnace bottom, heating furnace can be driven in base 1 by mobile motor 6
Average rate moves on track；In the present embodiment, mobile motor 6 and electric rotating machine 13 are variable-frequency motor, can be controlled as needed
Heating furnace translational speed and the rotary speed of metal tube 11.
Heating arrangements include one or more heating furnaces being arranged in series, and the heating furnace is used for overall heating metal pipe
11, each furnace bottom that heats is equipped with the movable pulley 504 for getting on the right track and being engaged with base 1, and each heating furnace top, which is equipped with, to be added
Hot stove handle 501, it is convenient to move heating furnace when needed；It is equipped with each heating furnace and penetrates inside heating furnace in the horizontal direction
Cylindrical shape burner hearth 502, uniform winding has resistance wire 503 on the inwall of the cylindrical shape burner hearth 502, plays heating cylindrical shape burner hearth
The effect of 502 interior metal pipes 11, the outer wall parcel heat-preservation cotton of cylindrical shape burner hearth 502, is played to entering inside cylindrical shape burner hearth 502
The effect of row insulation；Pole sequentially passes through the cylindrical shape burner hearth 502 on each heating furnace, the axis of pole and each heating furnace
The axis of upper cylindrical shape burner hearth 502 overlaps.In specific the present embodiment, heating arrangements include a heating furnace, and this adds
Hot stove is single heating furnace 5, and spray body includes folding rack 8, spray gun folder 9 and single spraying rifle 10, and the right-hand member of single top of heating furnace 5 is consolidated
Surely there is folding rack 8, spray gun folder 9 is fixed with the free end of the folding rack 8, single spraying rifle 10 is arranged on the spray of folding rack 8
On rifle folder 9, single spraying rifle 10 is used to spray non-viscous paint, spray angle and injection pressure adjustable, can adapt to the spray of different coating
Apply and require.
The metal tube hot spraying device of the present embodiment also includes temperature control box 15 and motor control box 16, and temperature control box 15 passes through
Heating Furnace Control line 1501 is connected with the conductor interface 505 on each heating furnace, each conductor interface 505 and corresponding cylindrical furnace
The resistance wire 503 wound on the inwall of thorax 502 is connected, and heating furnace is used for the overall metal tube 11 for heating and being cased with pole, temperature control box
15 are mainly used in controlling the heating-up temperature of heating furnace.Motor control box 16 passes through mobile motor control line 1601 and mobile motor 6
Connection, motor control box 16 are connected by electric rotating machine control line 1602 with electric rotating machine 13, and motor control box 16 is used to control
Mobile motor 6 and electric rotating machine 13, the start and stop, rotating and rotating speed of two motors can be controlled.
The application method of the metal tube hot spraying device of the present embodiment, comprises the following steps,
Step (1)：Opening the rotating mechanism switch of electric rotating machine 13 (open) makes the pole rotation that remains a constant speed (allow gold
Category pipe 11 remains a constant speed rotation status, ensure that metal tube 11 is cooled uniformly, sprayed), the furnace temperature for setting single heating furnace 5 is
Base material treatment temperature 60 C；
Step (2)：By the driving of mobile motor 6, single heating furnace 5 is shifted to the metal tube 11 being cased with pole, until
Cylindrical shape burner hearth 502 on single heating furnace 5 covers metal tube 11 completely, heating 8min overall to metal tube 11, reaches to base material
The purpose of preheating；
Step (3)：Mobile single average rate of heating furnace 5 leaves metal tube 11, treats that metal tube 11 exposes cylindrical shape burner hearth 502, will
Single spraying rifle 10 is directed at metal tube 11, and with the uniform velocity moving for single heating furnace 5, the surface of metal tube 11 is sprayed-on from right-hand member to left end
Upper subbing；
Step (4)：The furnace temperature for setting single heating furnace 5 is 120 DEG C of bed material sintering curing temperature；
Step (5)：Single heating furnace 5 is shifted to the metal tube 11 being cased with pole, until the cylindrical furnace on single heating furnace 5
Thorax 502 covers metal tube 11 completely, heating 10min overall to metal tube 11；
Step (6)：Mobile single average rate of heating furnace 5 leaves metal tube 11, treats that metal tube 11 exposes cylindrical shape burner hearth 502, will
Single spraying rifle 10 is directed at metal tube 11, and with the uniform velocity moving for single heating furnace 5, the surface of metal tube 11 is sprayed-on from right-hand member to left end
Coating above；
Step (7)：The furnace temperature for setting single heating furnace 5 is 300 DEG C of fabric sintering curing temperature, and single heating furnace 5 is shifted into branch
The metal tube 11 being cased with bar, until the cylindrical shape burner hearth 502 on single heating furnace 5 covers metal tube 11 completely, to metal tube 11
Overall heating 30min；
Step (8)：Single heating furnace 5, rotating mechanism are closed, metal tube 11 is carried out to cool to room temperature with the furnace；Metal tube 11
After furnace cooling, drive single heating furnace 5 to leave metal tube 11 by mobile motor 6, two scroll chucks 17 are opened, by metal tube
11 take out.
At present, corrosion resistance coating, which is more used in, solves the problems, such as in metal tube surface corrosion, but existing gold
Category pipe hot spraying device is often only suitable in the single coating of metal tube surface spraying, and the metal tube hot spraying of the present embodiment
Device and its application method, the base material to be sprayed is heated first, then spray bed material, bed material is burnt afterwards
Knot solidification, bed material spray fabric after solidifying levelling, solidification are finally sintered to fabric, whole process is carried out, is adapted to automatically
Metal tube surface sprays duplex coating, and by setting the furnace temperature of single heating furnace 5 and changing single spraying rifle 10, can also realize individual layer
Or the spraying of layered coating.
The spraying coating process requirement sprayed again is first heated according to coating, metal tube needs first to be heated before spraying, but
The characteristics of metal tube cross section is smaller, Longitudinal extending is longer is allowed for, overall heating is carried out to it then needs larger build
Heating furnace, the efficiency of heating surface are not very high, are sprayed again in view of the above-mentioned problems, proposing and carrying out local heating to metal tube in the prior art
The mode of painting, the mode of this local heating is comparatively both economical, has saved cost.But inventor is by substantial amounts of
Experimental studies have found that it is smooth that the coating that the mode that local heating sprays again easily causes metal tube surface to spray is carried out to metal tube
Degree is poor, finally substantially reduces the service life of metal tube surface coating in actual use.And the metal tube of the present embodiment adds
In hot spray apparatus, the cylindrical shape burner hearth 502 for penetrating inside heating furnace in the horizontal direction, the cylinder are equipped with each heating furnace
The structure of shape burner hearth 502 and metal tube is adapted, and the efficiency of heating surface is higher, easily can be carried out overall heating to metal tube, be carried
The service life of high metal pipe surface coating in actual use, and because cylindrical shape burner hearth 502 is in the horizontal direction
Extension, greatly reduces the size of heating furnace in vertical direction, has saved cost.
Metal tube is heated by the way of radiant heating in the prior art, exist one it is universal the problem of, i.e., it is golden
The heating and spraying process for belonging to pipe need substep to carry out, and metal tube takes out by after radiant heating, then by metal tube from heating furnace
Sprayed, can so cause metal tube certain temperature drop occur in surface in spraying, metal tube surface on the one hand can be made not to be
Sprayed at an established temperature, the temperature drop degree of another aspect metal tube surface is different so that each position of metal tube surface
The coating quality of metal tube surface can all be reduced by putting temperature difference, above-mentioned phenomenon in spraying.And the metal tube of the present embodiment adds
The application method of hot spray apparatus, in step (3), metal tube 11 is integrally heated in step (2) first so that metal tube 11
An identical temperature is generally held in, is moved with the average rate of single heating furnace 5, metal tube 11 is gradually exposed cylindrical shape burner hearth
502, and metal tube 11 exposes the part of cylindrical shape burner hearth 502 and is sprayed-on subbing immediately, metal tube 11 does not expose cylinder
The part insulation of shape burner hearth 502 so that the temperature drop when surface of metal tube 11 is sprayed-on is minimum, and the spraying method of above-mentioned coating is big
Big to shorten the time interval that metal tube 11 is heated and sprayed, 11 whole outer surface of metal tube is almost in a stationary temperature
Coat (i.e. the surface temperature of metal tube 11 keeps uniformity along its length) is sprayed-on, realizes metal tube 11 " while adding
The function of hot side spraying ", substantially increase the coating quality of coating；The spraying method of metal tube 11 is similarly in step (6).
It is emphasized that when the length of metal tube 11 is longer, a heating furnace can not meet that metal tube 11 is overall and add
Multiple heating furnace tandem compounds now easily can be got up to be formed an entirety and metal tube 11 is added by the target of heat
Heat, realize the requirement that metal tube 11 integrally heats.
The metal tube hot spraying device of the present embodiment, operation and maintenance is convenient, and metal tube heating and spraying process are equal
Machinery is carried out, and is influenceed by operating personnel smaller.
Embodiment 2
The application method of the metal tube hot spraying device of the present embodiment, its step is substantially the same manner as Example 1, and it is different
Part is：In step (1), the furnace temperature for setting single heating furnace 5 is 120 DEG C of base material treatment temperature；In step (2), to metal tube
11 overall heating 20min；In step (4), the furnace temperature for setting single heating furnace 5 is 180 DEG C of bed material sintering curing temperature；Step (5)
In, heating 20min overall to metal tube 11；In step (7), the furnace temperature for setting single heating furnace 5 is fabric sintering curing temperature 400
DEG C, heating 45min overall to metal tube 11.
Embodiment 3
With reference to Fig. 5, the metal tube hot spraying device of the present embodiment, its structure is substantially the same manner as Example 1, its difference
Be in：Clamping device includes two and is separately mounted to left-handed rotating shaft 3, the axle sleeve 18 on dextral shaft 12, is opened up on axle sleeve 18
Positioning hole radially, screw 19 is installed in the positioning hole；In the present embodiment, axle sleeve 18 and screw 19 are another fixed branch
The mode of bar, i.e., the right-hand member of left-handed rotating shaft 3 are provided with axle sleeve 18, and the axle sleeve 18 entangles the left end of pole, and will be propped up with screw 19
The left end of bar is fixed, and the left end of dextral shaft 12 is equally provided with axle sleeve 18, and the axle sleeve 18 entangles the right-hand member of pole, and uses spiral shell
Nail 19 fixes the right-hand member of pole；Pole can conveniently be pacified on rotating mechanism by axle sleeve 18 and screw 19
Fill/remove, and the cost of the clamping device is relatively low.
Embodiment 4
With reference to Fig. 6, the metal tube hot spraying device of the present embodiment, its structure is substantially the same manner as Example 1, its difference
Be in：The metal tube hot spraying device of the present embodiment, wherein heating arrangements include three heating furnaces being arranged in series, and this three
Direction of the individual heating furnace being arranged in series from close to one end of metal tube 11 to away from the one end of metal tube 11 is followed successively by 1# heating furnaces
20th, 2# heating furnaces 21,3# heating furnaces 22, spray body include folding rack 8, spray gun folder 9 and spray gun, 1# heating furnaces 20 and 2# and added
The one end of the top of hot stove 21 away from metal tube 11 is respectively and fixedly provided with folding rack 8, is respectively and fixedly provided with the free end of each folding rack 8
Spray gun folder 9, spray gun include bed material spray gun 23 and fabric spray gun 24, and bed material spray gun 23 is arranged on the spray gun folder of the top of 1# heating furnaces 20
On 9, fabric spray gun 24 is arranged on the spray gun folder 9 of the top of 2# heating furnaces 21.
The application method of the metal tube hot spraying device of the present embodiment, comprises the following steps,
Step (1)：Opening rotating mechanism makes pole remain a constant speed rotation, and the furnace temperature of setting 1# heating furnaces 20 is base material treatment
Temperature 60 C, the furnace temperature of setting 2# heating furnaces 21 are 120 DEG C of bed material sintering curing temperature, the furnace temperature of setting 3# heating furnaces 22 is face
Expect 300 DEG C of sintering curing temperature；
Step (2)：1# heating furnaces 20 are shifted to the metal tube 11 being cased with pole, until the cylindrical shape on 1# heating furnaces 20
Burner hearth 502 covers metal tube 11 completely, heating 8min overall to metal tube 11；
Step (3)：The mobile average rate of 1# heating furnaces 20 leaves metal tube 11, treats that metal tube 11 exposes cylindrical shape burner hearth 502, will
Bed material spray gun 23 is directed at metal tube 11, and with the uniform velocity moving for 1# heating furnaces 20, the surface of metal tube 11 is equal from one end to the other end
It is sprayed-on subbing；
Step (4)：2# heating furnaces 21 are shifted to the metal tube 11 being cased with pole, until the cylindrical shape on 2# heating furnaces 21
Burner hearth 502 covers metal tube 11 completely, heating 10min overall to metal tube 11；
Step (5)：The mobile average rate of 2# heating furnaces 21 leaves metal tube 11, treats that metal tube 11 exposes cylindrical shape burner hearth 502, will
Fabric spray gun 24 is directed at metal tube 11, and with the uniform velocity moving for 2# heating furnaces 21, the surface of metal tube 11 is equal from one end to the other end
It is sprayed-on coating above；
Step (6)：3# heating furnaces 22 are shifted to the metal tube 11 being cased with pole, until the cylindrical shape on 3# heating furnaces 22
Burner hearth 502 covers metal tube 11 completely, heating 30min overall to metal tube 11；
Step (7)：1# heating furnaces 20,2# heating furnaces 21,3# heating furnaces 22 and rotating mechanism are closed, metal tube 11 is carried out
Furnace cooling.
Although realizing the function of metal tube 11 " being sprayed in heating " in embodiment 1, metal tube 11 is entered every time
, it is necessary to reset the furnace temperature of single heating furnace 5 by certain time after row spraying, therefore metal tube 11 is sprayed-on a coating
Afterwards, the coating of spraying can not be heated immediately, limits the effect of being heating and curing of coating to a certain extent；And this implementation
The metal tube hot spraying device of example includes three heating furnaces being arranged in series and two spray guns so that metal tube 11 sprays in heating
A continuous process is formed during painting, i.e. metal tube 11 is sprayed immediately after the completion of heating, and is entered immediately after the completion of spraying
On the one hand row heating, above-mentioned continuous process substantially reduce the time-consuming of the whole hot spraying process of metal tube 11, improve dress
The production efficiency put, more importantly it is to realize between the spraying of metal tube 11, heating process and be closely connected, carry significantly
The high coating quality of coating.
It is emphasized that when needing to spray three layers or more than three layers of coating to metal tube 11, can adaptably increase
Add the quantity of heating furnace and the quantity of spray gun, realized disposably to the target of the spraying multi-layer coatings of metal tube 11 with this.
Embodiment 5
The application method of the metal tube hot spraying device of the present embodiment, its step is substantially the same manner as Example 4, and it is different
Part is：In step (1), the furnace temperature for setting 1# heating furnaces 20 is 120 DEG C of base material treatment temperature, the stove for setting 2# heating furnaces 21
Temperature is 180 DEG C of bed material sintering curing temperature, the furnace temperature of setting 3# heating furnaces 22 is 400 DEG C of fabric sintering curing temperature；Step (2)
In, heating 20min overall to metal tube 11；In step (4), heating 20min overall to metal tube 11；In step (6), to metal
The overall heating 45min of pipe 11.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, without designing and the technical scheme for creativeness
Similar frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (8)
- A kind of 1. application method of metal tube hot spraying device, it is characterised in that：Comprise the following steps,Step (1)：Opening rotating mechanism makes pole remain a constant speed rotation, and the furnace temperature for setting single heating furnace (6) is base material treatment temperature 60~120 DEG C of degree；Step (2)：Single heating furnace (6) is shifted to the metal tube (11) being cased with pole, until the cylindrical shape on single heating furnace (5) Burner hearth (502) covers metal tube (11) completely, and 8~20min is integrally heated to metal tube (11)；Step (3)：Mobile single heating furnace (6) average rate leaves metal tube (11), treats that metal tube (11) exposes cylindrical shape burner hearth (502) single spraying rifle (10), is directed at metal tube (11), moved with the average rate of single heating furnace (5), metal tube (11) surface is from one Hold and upper subbing is sprayed-on to the other end；Step (4)：The furnace temperature for setting single heating furnace (5) is 120~180 DEG C of bed material sintering curing temperature；Step (5)：Single heating furnace (5) is shifted to the metal tube (11) being cased with pole, until the cylindrical shape on single heating furnace (5) Burner hearth (502) covers metal tube (11) completely, and 10~20min is integrally heated to metal tube (11)；Step (6)：Mobile single heating furnace (5) average rate leaves metal tube (11), treats that metal tube (11) exposes cylindrical shape burner hearth (502) single spraying rifle (10), is directed at metal tube (11), moved with the average rate of single heating furnace (5), metal tube (11) surface is from one Hold and coating above is sprayed-on to the other end；Step (7)：The furnace temperature for setting single heating furnace (5) is 300~400 DEG C of fabric sintering curing temperature, and single heating furnace (5) is moved The metal tube (11) being cased with to pole, until the cylindrical shape burner hearth (502) on single heating furnace (5) covers metal tube completely (11) 30~45min integrally, is heated to metal tube (11)；Step (8)：Single heating furnace (5) and rotating mechanism are closed, furnace cooling is carried out to metal tube (11).
- 2. the application method of metal tube hot spraying device according to claim 1 or 2, the metal tube hot spraying dress Put including rotating mechanism, heating arrangements, spray body, travel mechanism, base (1) and the pole；The base (1) is provided with track, and the heating arrangements are arranged on the track of base (1), and heating arrangements are provided with spray Mechanism is applied, the travel mechanism is used to drive heating arrangements to slide on the track of base (1)；The pole passes through heater Structure, the both ends of pole are connected with the rotating mechanism, and metal tube (11) is cased with pole.
- 3. the application method of metal tube hot spraying device according to claim 2, it is characterised in that：The rotating mechanism Including left socle 2, right support 14, left-handed rotating shaft (3), dextral shaft (12) and electric rotating machine (13), left socle (2) and right support (14) it is symmetrically distributed in the both ends of base (1), upper end, the upper end of right support (14) of left socle (2) are that an inside is fixed There is the neck of bearing (4), the neck includes the lower bayonet slot (201) and upper neck (202) being detachably connected；Left socle (2) upper end Bearing (4) on left-handed rotating shaft (3) is installed, left-handed rotating shaft (3) passes through one end of clamping device and pole and connected, right support (14) dextral shaft (12) is installed, dextral shaft (12) passes through clamping device and the other end of pole on the bearing (4) of upper end Connection；The output shaft of the electric rotating machine (13) is connected with left-handed rotating shaft (3) or dextral shaft (12).
- 4. the application method of metal tube hot spraying device according to claim 2, it is characterised in that：The heating arrangements Including the heating furnace that one or more are arranged in series, each heating furnace bottom is equipped with to be engaged with base (1) upper rail Movable pulley (504), each heating furnace top is equipped with heating furnace handle (501), is equipped with each heating furnace along level side To the cylindrical shape burner hearth (502) of insertion inside heating furnace, uniform winding has resistance wire on the inwall of the cylindrical shape burner hearth (502) (503), the outer wall parcel heat-preservation cotton of cylindrical shape burner hearth (502)；The pole sequentially passes through the cylindrical furnace on each heating furnace Thorax (502), the axis of pole overlap with the axis of cylindrical shape burner hearth (502) on each heating furnace.
- 5. the application method of metal tube hot spraying device according to claim 4, it is characterised in that：The heating arrangements Including a heating furnace, a heating furnace is single heating furnace (5), and the spray body includes folding rack (8), spray gun presss from both sides (9) and single spraying rifle (10), single heating furnace (5) top are fixed with folding rack (8) close to one end of metal tube (11), the folding branch Spray gun folder (9) is fixed with the free end of frame (8), the single spraying rifle (10) is arranged on the spray gun folder (9) of folding rack (8).
- 6. the application method of metal tube hot spraying device according to claim 4, it is characterised in that：The travel mechanism Including mobile motor (6) and chain (7), a mobile motor (6), each mobile motor (6) are respectively and fixedly provided with each heating furnace Output shaft pass through chain (7) and it is corresponding heating furnace bottom movable pulley (504) connect.
- 7. the application method of metal tube hot spraying device according to claim 3, it is characterised in that：The clamping device Left-handed rotating shaft (3), scroll chuck (17) or axle sleeve (18) on dextral shaft (12), the axle sleeve are separately mounted to including two (18) positioning hole radially is opened up on, screw (19) is installed in the positioning hole.
- 8. the application method of metal tube hot spraying device according to claim 4, it is characterised in that：Also include temperature control box (15) and motor control box (16), the temperature control box (15) pass through the wire on Heating Furnace Control line (1501) and each heating furnace Interface (505) is connected, each conductor interface (505) and resistance wire (503) phase wound on corresponding cylindrical shape burner hearth (502) inwall Even；The motor control box (16) is connected by mobile motor control line (1601) with mobile motor (6), motor control box (16) It is connected by electric rotating machine control line (1602) with electric rotating machine (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710957926.3A CN107470080B (en) | 2016-02-26 | 2016-02-26 | A kind of application method of metal tube hot spraying device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710957926.3A CN107470080B (en) | 2016-02-26 | 2016-02-26 | A kind of application method of metal tube hot spraying device |
| CN201610108071.2A CN105562262B (en) | 2016-02-26 | 2016-02-26 | A kind of metal tube hot spraying device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610108071.2A Division CN105562262B (en) | 2016-02-26 | 2016-02-26 | A kind of metal tube hot spraying device |
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| CN107470080A true CN107470080A (en) | 2017-12-15 |
| CN107470080B CN107470080B (en) | 2019-08-16 |
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| CN201710957926.3A Active CN107470080B (en) | 2016-02-26 | 2016-02-26 | A kind of application method of metal tube hot spraying device |
| CN201710957963.4A Active CN107755132B (en) | 2016-02-26 | 2016-02-26 | Metal pipe spraying method |
| CN201610108071.2A Active CN105562262B (en) | 2016-02-26 | 2016-02-26 | A kind of metal tube hot spraying device |
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| CN201710957963.4A Active CN107755132B (en) | 2016-02-26 | 2016-02-26 | Metal pipe spraying method |
| CN201610108071.2A Active CN105562262B (en) | 2016-02-26 | 2016-02-26 | A kind of metal tube hot spraying device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113134444A (en) * | 2021-04-26 | 2021-07-20 | 河北四伟化学工业有限公司 | Inner wall spraying device for production of main drinking water supply pipeline |
| CN114632682A (en) * | 2022-03-11 | 2022-06-17 | 昆山优米诺金属科技有限公司 | Spray forming process for fluoropolymer coating on surface of metal part |
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| CN105935649A (en) * | 2016-06-30 | 2016-09-14 | 苏州市永通不锈钢有限公司 | Film-coating device for inner wall of steel pipe |
| CN106622828B (en) * | 2016-12-01 | 2019-02-05 | 重庆永高塑业发展有限公司 | The spray-painting plant of tubing |
| CN107930909B (en) * | 2017-11-28 | 2019-06-04 | 重庆市合川区云天机械制造有限公司 | Device for painting for central siphon |
| CN108499814B (en) * | 2018-04-27 | 2023-08-18 | 宁夏金梯氟塑防腐设备有限公司 | Centrifugal rotary E-shaped carbon steel piece plastic lining device provided with heat preservation cover |
| CN108855693A (en) * | 2018-08-01 | 2018-11-23 | 繁昌县长城铸造厂（普通合伙） | A kind of continuity metallic conduit outer surface spray equipment |
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| CN111947503B (en) * | 2020-08-03 | 2022-03-25 | 湖北迪峰换热器股份有限公司 | Heat exchanger core group used in acid-base corrosion environment and coating method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107755132B (en) | 2020-05-01 |
| CN107470080B (en) | 2019-08-16 |
| CN105562262B (en) | 2017-11-14 |
| CN105562262A (en) | 2016-05-11 |
| CN107755132A (en) | 2018-03-06 |
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