CN106222599B - Using the combination process in spraying self-melting alloy combination mid-frequency induction heating production valve wear-resistant seal face - Google Patents
Using the combination process in spraying self-melting alloy combination mid-frequency induction heating production valve wear-resistant seal face Download PDFInfo
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- CN106222599B CN106222599B CN201610817237.8A CN201610817237A CN106222599B CN 106222599 B CN106222599 B CN 106222599B CN 201610817237 A CN201610817237 A CN 201610817237A CN 106222599 B CN106222599 B CN 106222599B
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- valve
- melting alloy
- annular groove
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention belongs to valve sealing face production fields, and in particular to a kind of combination process using spraying self-melting alloy combination mid-frequency induction heating production valve wear-resistant seal face.The present invention sprays the pre- protective layer of self-melting alloy of layer in the annular groove by pretreated valve sealing face first; then in this spray coating; by powder filling device charging, mid-frequency induction heating deposition self-fluxing alloyed powder, valve wear-resistant seal face is formed.Combination process of the present invention has many advantages, such as that simple process, the dilution of deposited metal zero, deposition efficiency is high, deposition rate is fast, production cost is low and high production efficiency；And when selecting ni-based self-fluxing alloy, the hardness of the deposited metal of acquisition is high, and scratch resistance and abrasion resistance properties are good, can effectively improve the abrasion resistance properties of valve sealing face, and therefore, technique of the present invention can be widely used in the production of wearable valve sealing surface.
Description
Technical field
The invention belongs to valve sealing face production fields, and in particular to a kind of using spraying self-melting alloy combination intermediate frequency sense
The combination process in production valve wear-resistant seal face should be heated.
Background technique
Since reform and opening-up, the industries stable development such as China's mineral mining, thermal power generation, manufacture of cement, to wear-resistant and
The valve demand of good performance such as anti scuffing is also stepped up.But due in operational process valve sealing face often in contact with it is various compared with
Hard high speed dust and particle, while frequently being influenced by rubbing, squeeze and hit in starting closing course, valve seal
Face is easy to be destroyed, and causes valve service life extremely short, loses not caused by scrapping every year because of valve sealing face destruction
Its number is counted, and the leakage of dust be easy to cause the environmental pollution even more generation of serious accident.The key of valve is exactly flashboard
With the sealing problem of valve seat, in order to improve valve sealing face scratch resistance and the comprehensive performances such as wear-resistant, increase its service life,
It is general that valve sealing face is manufactured using plasma spray nickel-base alloy or the method for being bonded wear ring, it is close valve to be effectively increased
The scratch resistance of cover and wear-resistant equal properties, to reach the design and use requirement of valve.But plasma spray welding technology
There is also certain disadvantage, such as plasma spraying welding layer dilution rate is high, hardness is lower, deposition efficiency is low, surfacing low efficiency and work
Make environment difference etc..It is very high to be bonded wear ring technique price, and adhesive is easy to be emptied by dust and sealing surface is caused to destroy.
Summary of the invention
The present invention is in view of the deficiencies of the prior art, and it is an object of the present invention to provide a kind of using spraying self-melting alloy combination intermediate frequency sense
The combination process in production valve wear-resistant seal face should be heated.
For achieving the above object, the technical scheme adopted by the invention is as follows:
A kind of combination process using spraying self-melting alloy combination mid-frequency induction heating production valve wear-resistant seal face, packet
Include following steps:
(1) two components of valve seal plate and valve seat rings are pre-processed respectively, the valve seal plate and valve
Annular groove is provided on door sealing ring；
(2) flame spraying process is used, in the annular groove by pretreated valve seal plate and valve seat rings
Self-melting alloy is sprayed, one layer thin of pre- protective layer is formed；
(3) valve seal plate or valve seat rings are placed on positioner, so that valve seal plate or valve seat rings
With positioner together uniform rotation, one powder filling device is set in the surface of annular groove, powder filling device is provided with self-melting alloy
Powder, powder filling device add powder into annular groove until groove is completely filled, at the same time, in constant blanking velocity
Frequency induction coil heats deposition self-fluxing alloyed powder, makes the overlay cladding that self-melting alloy is formed at annular groove；
(4) by the valve seal plate of overlay cladding of step (3) gained with self-melting alloy and common group of valve seat rings
At valve wear-resistant seal face.
In above scheme, the depth of the annular groove is 1mm~2mm.
In above scheme, the pre- protective layer with a thickness of 0.05mm~0.1mm.
In above scheme, the temperature of the Medium frequency induction coil heats is 1050~1150 DEG C.
In above scheme, the self-melting alloy is selected from ni-based self-fluxing alloy, cobalt-based self-melting alloy and iron-based from molten
One or more of property alloy.
Heretofore described pretreated purpose is that degreasing and rust removal removes impurity, can achieve this purpose routine skill in this field
Art means belong to the scope of this patent, such as pickling, alkali cleaning, steam spray, sandblasting preprocess method.
In the present invention, the velocity of rotation of positioner and the blanking velocity of powder filling device are adjusted according to actual conditions, are become in principle
Position machine needs the annular groove after multiple rotations that can just be completely filled, and does so and is more advantageous to powder and uniformly divides in groove
Cloth and the efficiency for heating deposition.
Beneficial effects of the present invention: the present invention is passing through pretreated valve sealing face (valve seal plate and valve first
Sealing ring) annular groove in spraying layer the pre- protective layer of self-melting alloy, then in this spray coating, pass through dress powder
Device charging, mid-frequency induction heating deposition self-fluxing alloyed powder, form valve wear-resistant seal face；Combination process energy of the present invention
Overcome that spray-welding coating dilution rate present in plasma spray welding technology is high, hardness is lower, deposition efficiency is low (materials'use rate is low) and
The disadvantages of surfacing low efficiency, while can also overcome bonding wear ring cost is high, adhesive is easy to be emptied by dust and cause to seal
The disadvantages of face is destroyed, the combination process have simple process, the dilution of deposited metal zero, deposition efficiency height, deposition rate fast, raw
The advantages that producing at low cost and high production efficiency；And when selecting ni-based self-fluxing alloy, the hardness of the deposited metal of acquisition is high,
Scratch resistance and abrasion resistance properties are good, can effectively improve the abrasion resistance properties of valve sealing face, and therefore, technique of the present invention can be wide
It is general to apply to the production of wearable valve sealing surface.
Detailed description of the invention
Fig. 1 is the valve seal plate of valve sealing face of the present invention and the schematic diagram of valve seat rings, wherein (a) is that valve is close
Sealing plate is (b) valve seat rings, and 1 is annular groove.
Fig. 2 is the schematic diagram of device used in charging described in present invention process and mid-frequency induction heating deposition, wherein 2
It is coil for positioner, 3,4 be pallet, and 5 be powder filling device.
Specific embodiment
For a better understanding of the present invention, below with reference to the embodiment content that the present invention is furture elucidated, but it is of the invention
Content is not limited solely to the following examples.
Embodiment 1
As shown in Fig. 2, device used in charging and mid-frequency induction heating deposition includes that positioner (2), Medium frequency induction add
Heat coil (3), pallet (4) and powder filling device (5).Pallet horizontal device can realize and horizontally rotate on positioner, valve seal
Face is placed on pallet, and Medium frequency induction coil such as map device can be ring-like recessed around workpiece in pallet horizontal plane and vertical plane, coil
Slot heating, powder filling device spout of funnel is fixed on right above workpiece ring groove, it can be achieved that self-melting alloy when positioner horizontally rotates
Powder vertical drop enters in the ring groove of valve sealing face.
A kind of combination process using spraying self-melting alloy combination mid-frequency induction heating production valve wear-resistant seal face, packet
Include following steps:
(1) two components of valve seal plate and valve seat rings are pre-processed respectively, the valve seal plate and valve
Annular groove is provided on door sealing ring；
(2) flame spraying process is used, in the annular groove by pretreated valve seal plate and valve seat rings
Spraying forms one layer thin of pre- protective layer from Ni-based fusibleness alloy；
(3) valve seal plate or valve seat rings are placed on positioner, so that valve seal plate or valve seat rings
With positioner together uniform rotation, one powder filling device is set in the surface of annular groove, powder filling device is provided with nickel base self-fluxing
Alloy powder, powder filling device with constant blanking velocity into annular groove plus powder until groove be completely filled, at the same time, adopt
With Medium frequency induction coil heats deposition nickel base self-fluxing alloy powder, make the built-up welding that ni-based self-fluxing alloy is formed in annular groove
Layer；
(4) have the valve seal plate of ni-based self-fluxing alloy overlay cladding and valve seat rings common obtained by step (3)
Constitute valve wear-resistant seal face.
Above-mentioned pretreated purpose is degreasing and rust removal except impurity, such as selects pickling, alkali cleaning, steam spray, sandblasting mode.
The depth of above-mentioned annular groove is 1mm~2mm；Above-mentioned pre- protective layer with a thickness of 0.05mm~0.1mm；Among the above
The temperature of frequency induction coil heating is 1050~1150 DEG C.
The deposition efficiency of ni-based self-fluxing alloy is 96.6% in the present embodiment, and built-up welding efficiency can achieve 200 Grams Per Minutes,
The hardness (HRC) in valve wear-resistant seal face can achieve 58.97.
Obviously, above-described embodiment is only intended to clearly illustrate made example, and is not the limitation to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation or change therefore amplified
It moves within still in the protection scope of the invention.
Claims (4)
1. a kind of combination process using spraying self-melting alloy combination mid-frequency induction heating production valve wear-resistant seal face, special
Sign is, includes the following steps:
(1) two components of valve seal plate and valve seat rings are pre-processed respectively, the valve seal plate and valve are close
Annular groove is provided in seal ring；
(2) flame spraying process is used, is sprayed in the annular groove by pretreated valve seal plate and valve seat rings
Self-melting alloy forms one layer thin of pre- protective layer；
(3) valve seal plate or valve seat rings are placed on positioner again so that valve seal plate or valve seat rings with
Positioner uniform rotation together, one powder filling device is set in the surface of annular groove, powder filling device is provided with self-melting alloy powder
End, powder filling device add powder into annular groove until groove is completely filled, at the same time, using intermediate frequency with constant blanking velocity
Induction coil heats deposition self-fluxing alloyed powder, makes the overlay cladding that self-melting alloy is formed at annular groove, the intermediate frequency sense
The temperature for answering coil heats is 1050 ~ 1150 DEG C；
(4) obtained by step (3) there is the valve seal plate of self-melting alloy overlay cladding and valve seat rings to have collectively constituted valve
Door wear-resistant seal face.
2. combination process according to claim 1, which is characterized in that the depth of the annular groove is 1mm ~ 2mm.
3. combination process according to claim 1, which is characterized in that the pre- protective layer with a thickness of 0.05mm ~
0.1mm。
4. combination process according to claim 1, which is characterized in that the self-melting alloy is closed selected from nickel base self-fluxing
One or more of gold, cobalt-based self-melting alloy and iron-base self-fluxing alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817237.8A CN106222599B (en) | 2016-09-12 | 2016-09-12 | Using the combination process in spraying self-melting alloy combination mid-frequency induction heating production valve wear-resistant seal face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817237.8A CN106222599B (en) | 2016-09-12 | 2016-09-12 | Using the combination process in spraying self-melting alloy combination mid-frequency induction heating production valve wear-resistant seal face |
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| Publication Number | Publication Date |
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| CN106222599A CN106222599A (en) | 2016-12-14 |
| CN106222599B true CN106222599B (en) | 2019-01-01 |
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| CN201610817237.8A Expired - Fee Related CN106222599B (en) | 2016-09-12 | 2016-09-12 | Using the combination process in spraying self-melting alloy combination mid-frequency induction heating production valve wear-resistant seal face |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907437A (en) * | 2018-06-20 | 2018-11-30 | 重庆川仪调节阀有限公司 | A kind of electromagnetic induction heating and remelting sphere surfacing system and method |
| CN109915613A (en) * | 2019-03-25 | 2019-06-21 | 苏州纽威阀门股份有限公司 | A kind of flashboard remelting spray welding process and flashboard |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1995457A (en) * | 2006-01-06 | 2007-07-11 | 山东科技大学 | Plasma beam surface metallurgical steel base wearable composite material preparation method |
| EP2182183A1 (en) * | 2008-10-31 | 2010-05-05 | Mahle International GmbH | Mobile sealing body of a valve exposed to hot gasses |
| CN105132850A (en) * | 2015-08-10 | 2015-12-09 | 天津百利展发集团有限公司 | Nickel-based powder spray-welding process for large gate |
| CN105525288A (en) * | 2015-12-25 | 2016-04-27 | 燕山大学 | Manufacturing method for intensified ball valve seat |
| CN105543760A (en) * | 2015-12-22 | 2016-05-04 | 上海开维喜集团股份有限公司 | Preparation method of abrasion-resistant coating of sealing surface of high-temperature and high-pressure oxygen valve |
-
2016
- 2016-09-12 CN CN201610817237.8A patent/CN106222599B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1995457A (en) * | 2006-01-06 | 2007-07-11 | 山东科技大学 | Plasma beam surface metallurgical steel base wearable composite material preparation method |
| EP2182183A1 (en) * | 2008-10-31 | 2010-05-05 | Mahle International GmbH | Mobile sealing body of a valve exposed to hot gasses |
| CN105132850A (en) * | 2015-08-10 | 2015-12-09 | 天津百利展发集团有限公司 | Nickel-based powder spray-welding process for large gate |
| CN105543760A (en) * | 2015-12-22 | 2016-05-04 | 上海开维喜集团股份有限公司 | Preparation method of abrasion-resistant coating of sealing surface of high-temperature and high-pressure oxygen valve |
| CN105525288A (en) * | 2015-12-25 | 2016-04-27 | 燕山大学 | Manufacturing method for intensified ball valve seat |
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| CN106222599A (en) | 2016-12-14 |
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Granted publication date: 20190101 Termination date: 20190912 |