CN104561880B - A kind of flame spraying gun and spray equipment - Google Patents
A kind of flame spraying gun and spray equipment Download PDFInfo
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- CN104561880B CN104561880B CN201410795757.4A CN201410795757A CN104561880B CN 104561880 B CN104561880 B CN 104561880B CN 201410795757 A CN201410795757 A CN 201410795757A CN 104561880 B CN104561880 B CN 104561880B
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Abstract
The invention discloses a kind of flame spraying gun and spray equipment, is related to alloy powder technical field of hot, solves that alloy powder utilization ratio in the prior art is relatively low and the shorter technical problem of flame spraying gun service life.The present invention main technical schemes be：A kind of flame spraying gun, including：Nozzle and powder feeding tubing string, nozzle center position are provided with the powder injection hole of insertion, and powder injection hole surrounding is circumferential and is uniformly provided with flame spray orifice；Powder feeding tubing string one end is communicated to the powder injection hole of nozzle, and the other end is provided with powder feeding pipe joint；Wherein, powder feeding tubing string is integral type structure.Flame spray coating device controls the combustion gas of the flame spraying gun, the metering of combustion-supporting gas and powder to convey using powder, flame-spraying automatic control system equipment.Present invention is mainly used for flame spray powder coating, and overcome that prior art alloy powder utilization ratio is relatively low and the shorter technical problem of spray gun service life.
Description
Technical field
The present invention relates to alloy powder technical field of hot, more particularly to a kind of flame spraying gun and spray equipment.
Background technology
Flame spray powder coating be it is a kind of thermal source is used as using oxy-acetylene flame, sprayed on material for powder heat spraying method；
Flame spray powder coating equipment is simple, and sprayable material category is more.So flame spray powder coating is using the most universal
Hot-spraying technique.Flame spray powder coating realizes spraying using oxyacetylene torch alloy powder spray gun, specifically, by oxygen and acetylene
The flame-thrower nozzle by flame spray is sent to spray respectively, powder route another powder jet via powder feeding pipe and sprayed, oxygen and acetylene combustion
Produce high temperature by powder spray to the surface of workpiece Jing Guo surface preparation on, formation semi-molten state alloy coat,
Realize that alloy powder sprays.
In the prior art, oxyacetylene torch alloy powder spray gun is generally using the flame spray in 12 holes, 10 holes even 8 holes
Mouth, the aperture of flame-thrower nozzle is typically in 1.0mm.Meanwhile for ease of adjusting powder sending quantity, the powder feeding pipeline of spray gun passes through by multiple copper
Matter part assembles, in use, alloy powder is delivered to the powder injection hole of nozzle by powder feeding pipeline, realizes spraying.
When carrying out spraying operation using above-mentioned spray gun, inventor has found at least to exist in the prior art and asked as follows
Topic：
(1) powder feeding pipe road is made from multiple components and formed in the prior art, causes internal diameter in powder feeding pipes not of uniform size, send
Powder effect is poor, meanwhile, the powder feeding pipeline wearability of copper material is poor, and after a period of time, abrasion can be very serious, also can
Powder feeding efficiency is had a strong impact on, causes alloy powder utilization rate relatively low, while service life is shorter.
(2) due to the limitation of spray gun flame-thrower nozzle quantity and size in the prior art, this flame-thrower nozzle pairing is caused
The epigranular coherence request at bronze end is very high, once the epigranular uniformity of alloy powder does not reach requirement, it will leads
The utilization ratio of alloy powder during spraying is caused to substantially reduce.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of flame spraying gun, and main purpose is that solve alloy in the prior art
Powder utilization ratio is relatively low, the shorter technical problem of service life.
To reach above-mentioned purpose, present invention generally provides following technical scheme：
On the one hand, the embodiments of the invention provide a kind of flame spraying gun, including：
Nozzle, the center of the nozzle are provided with the powder injection hole of insertion, and the powder injection hole surrounding is circumferential and uniform
It is provided with flame spray orifice；
Powder feeding tubing string, described powder feeding tubing string one end are communicated to the powder injection hole of nozzle, and the other end is provided with powder feeding pipe joint；Its
In：
The powder feeding tubing string is integral type structure.
Foregoing flame spraying gun, the flame spray orifice are 16.
Foregoing flame spraying gun, the aperture of the flame spray orifice are 0.8mm, and the hole heart is away from for 10.5-11mm.
Foregoing flame spraying gun, the flame spraying gun also include combustion gas and combustion-supporting letter shoot road, the combustion gas and
Combustion-supporting letter shoot road one end is communicated to flame spray orifice, and the other end is respectively arranged with gas joint and helps gas joint.
Foregoing flame spraying gun, the flame spraying gun also include mixing chamber, and described mixing chamber one end is communicated to combustion gas
With combustion-supporting letter shoot road, the other end is communicated to the flame spray orifice of nozzle.
Foregoing flame spraying gun, the powder feeding tubing string are Hardmetal materials.
Foregoing flame spraying gun, the nozzle include：
Inner chamber body, the powder injection hole are arranged on inner chamber body center；
Shell, the flame spray orifice being arranged on shell in a ring, and the outer cover suit is on the outside of the inner chamber body
On wall.
Foregoing flame spraying gun, the shell force together with inner chamber body interference fit backlash.
The gas joint on foregoing flame spraying gun, combustion gas and combustion-supporting letter shoot road and gas joint is helped to be respectively connecting to
Combustion gas automatic transport control system and combustion-supporting gas automatic transport control system.
On the other hand, embodiments of the invention additionally provide a kind of spray equipment, and it includes：
Flame spraying gun, the flame spraying gun are the flame spraying gun described in any of the above-described；
Gas metering conveying device, the gas metering conveying device are connected with the gas joint of the flame spraying gun；
Combustion-supporting gas metering and conveying device, the combustion-supporting gas metering and conveying device help gas joint with the flame spraying gun
Connection；
Powder metering and conveying device, the powder feeding pipe joint of the powder metering and conveying device and the flame spraying gun connect
Connect；
Control device, the control device is respectively at gas metering conveying device, combustion-supporting gas metering and conveying device and powder
Metering and conveying device connects.
The embodiment of the present invention propose a kind of flame spraying gun and spray equipment, wherein, flame spraying gun include nozzle and
Powder feeding tubing string；Nozzle center position is provided with the powder injection hole of insertion, and powder injection hole surrounding is circumferential and is uniformly provided with flame spray orifice.
Powder feeding tubing string one end is communicated to the powder injection hole of nozzle, and the powder feeding tubing string other end is provided with powder feeding pipe joint；Wherein, the flame spray
It is integral type structure to apply powder feeding tubing string in rifle.Powder feeding of the powder feeding tubing string of embodiments of the invention as a result of integral structure
Tubing string, the smooth seamless of tubing string inner surface, alloy powder thus tubing string by that can not produced again because of the out-of-flatness of tubing string inner surface
Raw resistance, the speed and throughput of alloy powder are influenceed, powder feeding tubing string internal structure is single, sealing, and smooth inwall is also kept away
Exempted from alloy powder by when frictional force, reduce friction of the alloy powder to pipe string internal wall, and then add powder feeding tubing string
Service life.
Further, the flame spraying gun that the embodiment of the present invention proposes, the flame spray orifice in 16 holes is employed, it is circumferential and uniform
Be arranged in powder injection hole surrounding, overcome in the prior art 12 holes even less flame spray orifice when, it is equal to the granularity of alloy powder
Even coherence request is higher, the relatively low technical problem of alloy powder utilization ratio, the flow of oxygen, acetylene is increased, to alloyed powder
The granularity requirements at end diminish, and add the utilization ratio of alloy powder.
Brief description of the drawings
Fig. 1 is a kind of structural representation of flame spraying gun provided in an embodiment of the present invention；
Fig. 2 is a kind of nozzle arrangements schematic diagram of flame spraying gun provided in an embodiment of the present invention；
Fig. 3 is a kind of powder feeding tubular column structure schematic diagram of flame spraying gun provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of spray equipment provided in an embodiment of the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2 and Figure 3, a kind of flame spraying gun that one embodiment of the invention provides, the flame spraying gun
Including nozzle 1 and powder feeding tubing string 2.Wherein, the center of nozzle 1 is provided with the powder injection hole 4 of insertion, the surrounding of powder injection hole 4 it is circumferential and
Uniformly it is provided with flame spray orifice 5.The one end of powder feeding tubing string 2 is communicated to the powder injection hole 4 of nozzle 1, and the other end of powder feeding tubing string 2 is provided with
Powder feeding pipe joint 3.Wherein, in flame spraying gun, powder feeding tubing string 2 is integral type structure.
The flame spraying gun that the present embodiment provides passes through the powder feeding tubing string of this integral structure, the smooth nothing of tubing string inner surface
Seam, alloy powder thus tubing string by that can not produce resistance because of the out-of-flatness of tubing string inner surface again, influence alloy powder
Speed and throughput, powder feeding tubing string internal structure is single, sealing, and smooth inwall it also avoid alloy powder by when rub
Power is wiped, reduces friction of the alloy powder to pipe string internal wall, and then add the service life of powder feeding tubing string.
Further, another embodiment of the present embodiment provides a kind of flame spraying gun, compared with above-described embodiment, this reality
The powder feeding tubing string 2 for applying example is Hardmetal materials.On the basis of above-described embodiment, using Hardmetal materials as powder feeding pipe
The material of post, hardness is more preferable, and wearability is more preferable, and service life greatly prolongs.
Further, another embodiment of the present embodiment provides a kind of flame spraying gun, compared with above-described embodiment, this reality
It is 16 to apply the flame spray orifice 5 in the flame spraying gun of example.
The flame spraying gun that the present embodiment provides, employs the flame spray orifice in 16 holes, and circumferential and uniform be arranged in is dusted
Hole surrounding, when overcoming 12 holes in the prior art or even less flame spray orifice, to the epigranular coherence request of alloy powder
It is higher, the relatively low technical problem of alloy powder utilization ratio, the flow of oxygen, acetylene is increased, to the granularity requirements of alloy powder
Diminish, add the utilization ratio of alloy powder.
Further, another embodiment of the present embodiment provides a kind of flame spraying gun, compared with above-described embodiment, this reality
In the flame spraying gun for applying example, the aperture of flame spray orifice 5 is preferably 0.8mm, and the hole heart is away from for 10.5-11mm.Using above-mentioned hole
Away from being combined with the above embodiments, the flame intensity that can spray flame spraying gun Flame spray orifice is bigger for footpath and the hole heart,
Its ring formed dress flame temperature improves, and good melting can be also played to particle slightly larger in alloy powder, to alloy
Prior art is not so strict for another example for powder size requirement, reduces the cost that is made of alloy powder, while add alloy powder
Utilization rate, further reduce spraying cost.
Further, another embodiment of the present embodiment provides a kind of flame spraying gun, compared with above-described embodiment, such as schemes
Shown in 1, the flame spraying gun that the present embodiment proposes also includes combustion gas and combustion-supporting letter shoot road 6 and mixing chamber (does not show in figure
Go out), the combustion gas and combustion-supporting one end of letter shoot road 6 are communicated to flame spray orifice 5, and the other end is respectively arranged with gas joint and helped
Gas joint.Mixing chamber one end is communicated to combustion gas and combustion-supporting letter shoot road 6, and the other end is communicated to the flame spray orifice 5 of nozzle 1.
I.e. combustion gas and combustion-supporting gas are just delivered to flame spray orifice after mixing chamber mixing and are operated.
Specifically, combustion gas, through fuel gas transmission pipeline, is entered by the gas joint entrance with pressure of fuel gas transmission pipeline one end
To mixing chamber, meanwhile, combustion-supporting gas is pressed into through combustion-supporting letter shoot by the combustion-supporting gas laced belt of combustion-supporting letter shoot road one end
Road, also into mixing chamber, after combustion gas and combustion-supporting gas are sufficiently mixed in mixing chamber, then the flame spray orifice at nozzle is delivered to, entered
Row ignition.Wherein fuel gas transmission and the caliber of fuel gas transportation pipeline is helped according to fuel gas transmission speed and combustion-supporting gas transporting velocity
It is determined that, it is preferable that combustion-supporting gas inlet is traditionally arranged to be 0.55~0.65 cubic metre per hour, and combustion gas inlet is traditionally arranged to be
1.1~1.2 cubic metres are per hour, for ease of operation, the same length of gas pipeline and combustion-supporting feed channel under normal circumstances,
That is gas pipeline and the caliber of combustion-supporting feed channel ratio is about 1:2 is more suitable.Corresponding, the alloy powder of spraying
Inlet is advisable with 5-7 kilograms per hour, and the injection pressure of combustion-supporting gas oxygen, which is generally located on 0.7-0.8MPa, to be advisable, combustion gas second
The injection pressure general control of alkynes is in 0.1-0.11MPa, and all duct lengths of gas pipeline and combustion-supporting gas are about at 20 meters or so.
Oxygen, acetylene and alloy powder usage amount and pressure etc. are entered with this ratio, the profit of alloy powder can be made to greatest extent
Improved with rate, while ensure that oxygen and acetylene dosage are minimum.
As the preferred of above-described embodiment, the gas joint on combustion gas and combustion-supporting letter shoot road and gas joint is helped to connect respectively
It is connected to combustion gas automatic transport control system and combustion-supporting gas automatic transport control system.The combustion gas automatic transport control system and help
Combustion gas automatic transport control system includes gas metering conveying device and combustion-supporting gas metering and conveying device.Combustion gas and combustion-supporting gas pass through
Pressurized delivered to combustion gas and combustion-supporting letter shoot road, combustion gas automatic transport control system and combustion-supporting gas automatic transport controls after metering
System can be finely adjusted to transporting velocity of combustion gas and combustion-supporting gas etc. as needed, to meet the fuel gas transmission under different situations
It is required that.Combustion gas and combustion-supporting gas are preferably saved, farthest meets alloy powder melts requirement.
Further, another embodiment of the present embodiment provides a kind of flame spraying gun, compared with above-described embodiment, such as schemes
Shown in 2, the nozzle 1 for the flame spraying gun that the present embodiment provides includes inner chamber body 7 and shell 8.Wherein, in powder injection hole 4 is arranged on
The center of cavity 7；Being arranged on shell 8 in a ring of flame spray orifice 5, and shell 8 is sleeved on the lateral wall of inner chamber body 7.It is excellent
Selection of land, the shell 8 force together with the inner chamber body 7 interference fit backlash.
Nozzle described in the embodiment, due to being forced together by being interference fitted backlash, shape between shell and inner chamber body
Integrally, and close connection, the flame that the alloy powder and the flame spray orifice of surrounding that powder injection hole sprays spray can preferably connect
Touch, ensure that alloy powder preferably melts, improve the utilization rate of alloy powder.
On the other hand, as shown in figure 4, one embodiment of the invention also provides a kind of spray equipment, the spray equipment includes：
Flame spraying gun, gas metering conveying device, combustion-supporting gas metering and conveying device, powder metering and conveying device and control device.Its
In, flame spraying gun is any one flame spraying gun described in above-described embodiment.Gas metering conveying device and the fire
The gas joint connection of flame spray gun；Combustion-supporting gas metering and conveying device helps gas joint to be connected with the flame spraying gun；Powder
Last metering and conveying device is connected with the powder feeding pipe joint of the flame spraying gun；Control device is conveyed respectively at gas metering and filled
Put, combustion-supporting gas metering and conveying device connects with powder metering and conveying device.
Further, control device be powder, flame-spraying automatic control system, flame spraying gun described in its major control
Combustion gas, the metering conveying of combustion-supporting gas and powder.Powder, flame-spraying automatic control system are provided with powder feeding adjustable valve, can
Lead to the powder sending quantity of spray gun powder feeding tubing string with the coating thickness requirement accurate adjustment according to needed for workpiece, so as to accurately control powder material
Expect cost.
When carrying out spraying operation using above-described embodiment, the power supply of control device is first turned on, starts control device, then divide
Not Qi Dong gas metering conveying device, combustion-supporting gas metering and conveying device and powder metering and conveying device, distinguished by control device
Set combustion gas conveying capacity and discharge pressure, the conveying capacity and discharge pressure of combustion-supporting gas, and the delivery of carrier gas pressure of powder and
Feed flow, then presses startup and lights button and proceed by spray coating operations.Described flame spraying gun can also be placed in
On liftable and the support meanss of translation, track to be sprayed is stored in control device, by control device according to be sprayed
TRAJECTORY CONTROL flame spraying gun is upper and lower, left and right or movable, ensures mobile accuracy, and then ensure the uniform of spraying operation
Property and uniformity, improve coating quality.This full automatic spray equipment greatlys save manpower, and can realize automation spray
Operation is applied, improves coating quality and efficiency.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
- A kind of 1. flame spraying gun, it is characterised in that including：Nozzle, the center of the nozzle are provided with the powder injection hole of insertion, and the powder injection hole surrounding is circumferential and uniformly sets There is flame spray orifice；Powder feeding tubing string, described powder feeding tubing string one end are communicated to the powder injection hole of nozzle, and the other end is provided with powder feeding pipe joint；Wherein, the powder feeding tubing string is integral type structure, the smooth seamless of inner surface of the powder feeding tubing string；The flame spraying gun also includes combustion gas and combustion-supporting letter shoot road, and the combustion gas connects with combustion-supporting letter shoot road one end To flame spray orifice, the fuel gas transmission pipeline is identical with the length on combustion-supporting letter shoot road, and caliber ratio is 1:2.
- 2. flame spraying gun according to claim 1, it is characterised in that the flame spray orifice is 16.
- 3. flame spraying gun according to claim 2, it is characterised in that the aperture of the flame spray orifice is 0.8mm, Kong Xin Away from for 10.5-11mm.
- 4. flame spraying gun according to claim 1, it is characterised in that the combustion gas and combustion-supporting letter shoot road it is another End is respectively arranged with gas joint and helps gas joint.
- 5. flame spraying gun according to claim 4, it is characterised in that the flame spraying gun also includes mixing chamber, institute State mixing chamber one end and be communicated to combustion gas and combustion-supporting letter shoot road, the other end is communicated to the flame spray orifice of nozzle.
- 6. flame spraying gun according to claim 1, it is characterised in that the powder feeding tubing string is Hardmetal materials.
- 7. flame spraying gun according to claim 1, it is characterised in that the nozzle includes：Inner chamber body, the powder injection hole are arranged on inner chamber body center；Shell, the flame spray orifice being arranged on shell in a ring, and the outer cover suit is on the inner chamber body lateral wall.
- 8. flame spraying gun according to claim 7, it is characterised in that after the shell is interference fitted with the inner chamber body Punching press is together.
- 9. flame spraying gun according to claim 4, it is characterised in that the gas joint on combustion gas and combustion-supporting letter shoot road With help gas joint to be respectively connecting to combustion gas automatic transport control system and combustion-supporting gas automatic transport control system.
- 10. a kind of spray equipment, it is characterised in that the spray equipment includes：Flame spraying gun, the flame spraying gun are the flame spraying gun described in claim any one of 1-9；Gas metering conveying device, the gas metering conveying device are connected with the gas joint of the flame spraying gun；Combustion-supporting gas metering and conveying device, the combustion-supporting gas metering and conveying device help gas joint to connect with the flame spraying gun Connect；Powder metering and conveying device, the powder metering and conveying device are connected with the powder feeding pipe joint of the flame spraying gun；Control device, the control device measure respectively at gas metering conveying device, combustion-supporting gas metering and conveying device and powder Conveying device connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795757.4A CN104561880B (en) | 2014-12-18 | 2014-12-18 | A kind of flame spraying gun and spray equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795757.4A CN104561880B (en) | 2014-12-18 | 2014-12-18 | A kind of flame spraying gun and spray equipment |
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| Publication Number | Publication Date |
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| CN104561880A CN104561880A (en) | 2015-04-29 |
| CN104561880B true CN104561880B (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410795757.4A Active CN104561880B (en) | 2014-12-18 | 2014-12-18 | A kind of flame spraying gun and spray equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070654U (en) * | 1990-07-15 | 1991-02-06 | 唐山钢铁公司劳动服务公司机械修配厂 | Multipurpose cutting torch |
| US5207382A (en) * | 1989-06-03 | 1993-05-04 | Eutectic Corporation | Autogenous flame spraying apparatus for the flame spraying of powder-form materials or spray powder |
| CN101181703A (en) * | 2007-12-14 | 2008-05-21 | 安东石油技术（集团）有限公司 | Powder flame-thrower nozzle |
| CN201644280U (en) * | 2010-02-25 | 2010-11-24 | 黎明 | Anti-corrosion flame plastic spraying device |
| CN204325469U (en) * | 2014-12-18 | 2015-05-13 | 安东石油技术（集团）有限公司 | A kind of flame spraying gun and spray equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013173983A (en) * | 2012-02-24 | 2013-09-05 | Shin-Men Tekko Co Ltd | Extension for flame spraying gun |
-
2014
- 2014-12-18 CN CN201410795757.4A patent/CN104561880B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5207382A (en) * | 1989-06-03 | 1993-05-04 | Eutectic Corporation | Autogenous flame spraying apparatus for the flame spraying of powder-form materials or spray powder |
| CN2070654U (en) * | 1990-07-15 | 1991-02-06 | 唐山钢铁公司劳动服务公司机械修配厂 | Multipurpose cutting torch |
| CN101181703A (en) * | 2007-12-14 | 2008-05-21 | 安东石油技术（集团）有限公司 | Powder flame-thrower nozzle |
| CN201644280U (en) * | 2010-02-25 | 2010-11-24 | 黎明 | Anti-corrosion flame plastic spraying device |
| CN204325469U (en) * | 2014-12-18 | 2015-05-13 | 安东石油技术（集团）有限公司 | A kind of flame spraying gun and spray equipment |
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| Publication number | Publication date |
|---|---|
| CN104561880A (en) | 2015-04-29 |
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