CN109913783A - A kind of hot dip coating method for nickel base antifriction anticorrosion alloy - Google Patents
A kind of hot dip coating method for nickel base antifriction anticorrosion alloy Download PDFInfo
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- CN109913783A CN109913783A CN201711313664.3A CN201711313664A CN109913783A CN 109913783 A CN109913783 A CN 109913783A CN 201711313664 A CN201711313664 A CN 201711313664A CN 109913783 A CN109913783 A CN 109913783A
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Abstract
The present invention relates to a kind of hot dip coating method for nickel base antifriction anticorrosion alloy, method includes: a, cleaning plating piece surface, removes the greasy dirt and oxide layer and impurity on surface；B, the melting Ni-Cr-Si-B system alloy under vacuum or inert gas shielding in furnace, is heated to 980~1150 DEG C, it is made to be fused into plating solution；C, it will be preheated before the metal product coating piece hot-dip of removing surface；D, the plating piece after preheating is immersed in the plating solution of nickel-base alloy and carries out hot-dip, the immersion plating time is 0.5~60 second；E, it moves to outside furnace, room temperature natural cooling under vacuum or inert gas shielding.The present invention realizes technique and simplifies, at low cost, easily practical.
Description
Technical field
The invention belongs to surface of metal product coating protection technique fields.Specifically provide a kind of wear-and corrosion-resistant it is Ni-based from
Fuse the hot dip coating method of gold.
Background technique
With the development of modernization industry, each industrial department more and more requires mechanical equipment and component can be in harshness
Working condition under operate steadily in the long term, increasingly higher demands are proposed to the performances such as corrosion-resistant, wear-resistant of material surface, because
This, it is necessary to the process for treating surface for being able to satisfy above-mentioned requirements is provided.Oil pick-up tube, sucker rod such as in petroleum industry, box cupling
With oil pipe simultaneously by mechanical wear and chemical attack in oil recovery process, operating condition is extremely severe, thus in bar surface shape
After alloy coat at one layer of abrasion resistant and corrosion resistant, so that it may greatly improve its service life and improve the safety of operation.In recent years
Come, the self-fluxing alloy coatings such as Ni-based, cobalt-based, iron-based are widely used in material surface protection and workpiece reparation, have apparent
Economic benefit and social benefit.Nickel-base alloy has excellent wear-resisting, heat-resisting and inoxidizability under room temperature and higher temperature, answers
This is widely used.There are many feasible method for making this Ni-based coating, and such as thermal spraying, vacuum fusion sintering, laser is molten
It covers.
Current some iron based compacts, such as oil field tube rod, multi-purpose hot-spraying technique makes abrasion resistant corrosion resistant coating.Thermal spraying
The heat sources such as technology utilization oxy-acetylene (propane) flame, electric arc or plasma arc melt various metals, alloy and ceramics, plastics etc.
And high speed is ejected into workpiece surface, to form one layer of firm coating with matrix.Alloy powder is sprayed with heat spraying method
In tube surface, using alloy coat can be prepared after inducting remolten, but due to being limited by technique, it is difficult in elongated tubular
Wall and surfaces of complex shape and larger area carry out thermal spraying, and heat spraying method technique is more complex, low efficiency, higher cost.
Traditional material or immersion is widely used in steel industry, such as hot-dip aluminizing, zinc, alumin(i)um zinc alloy on steel.It is this
The method of coating is made than thermal spraying, vacuum fusion sintering, the techniques such as laser melting coating all seem simply, are easy to implement in technique, cost
Low, the quality of coating can also be guaranteed, but traditional material hot-dip is also far from satisfying under compared with abrasion resistant and corrosion resistant occasion
It needs, especially at wear-resisting aspect.
Nickel base antifriction anticorrosion alloy hot dipping coating technology is simple, high-efficient, at low cost etc. with traditional material or immersion
Advantage, while this technology prepares ground surface with table prepared by the process for treating surface such as thermal spraying, vacuum fusion sintering, laser melting coating
The excellent properties of surface layer corrosion-proof wear can be widely applied to each field such as petrochemical industry, machine-building, metallurgy, national defence.
Summary of the invention
The object of the present invention is to provide a kind of hot dip coating methods of the nickel-based self-fluxing alloy of wear-and corrosion-resistant, and it is high and low to realize efficiency
Cost, and coating is made to form the metallurgical bonding of stronger flawless, stomata with substrate.
The purpose of the present invention is what is be achieved through the following technical solutions: the nickel base antifriction anticorrosion alloy of this iron based compacts
Or immersion, comprising: the greasy dirt and oxide layer and impurity on surface are removed in 1, cleaning plating piece surface.2, the vacuum in furnace
Or melting Ni-Cr-Si-B system alloy under inert gas shielding, 980~1150 DEG C are heated to, it is made to be fused into plating solution.3, by table
It is preheated before the metal product coating piece hot-dip that face was cleared up, preheating temperature is at 500~900 DEG C.4, by the plating piece after preheating
It immerses in the melt of nickel-base alloy and carries out hot-dip, immersion plating time of the plating piece in the plating solution of fusing was at 0.5~60 second.5, it moves
To outside furnace, room temperature natural cooling under vacuum or inert gas shielding.The nickel-base alloy of low melting point of the present invention, ingredient are:
Cr:5~20%, B:1~6%, Si:1~6%, C:0~1.1%, Fe:0~10%, Ni: surplus.This antifriction alloy fusing point
At 960 DEG C~1100 DEG C, hardness height (HRC:20~63), wear-and corrosion-resistant are good, resistance to high temperature oxidation, and polishing machine is good between resistance to metal.
Vacuum or inert gas shielding are carried out to plating piece and plating solution in the present invention, prevent plating piece surface generate oxide layer to
Hinder coating alloy in conjunction with the metallurgical chemistry between base steel.It is preheated before plating piece immersion plating, nickel after the plating piece after preheating immerses in molten bath
Based alloy plating solution can plate on abdomen well after capable of being reacted well with plating piece surface by heat absorption heat release etc., and be firmly combined.
The present invention has the advantages that the ni base alloy coating thickness of the hot dip coating method provided is uniform, the bond strength height (> of coating
400MPa), and by 500~900 DEG C of control preheating temperature and 0.5~60 second immersion plating time thickness that can control coating exist
Between 0.05~1mm.Coating alloy does not need that powder is made, and does not need other spray welding apparatus to complete the production of coating, but directly
In furnace this coating alloy of melting and by pipe fitting immerse melt after certain time propose.It realizes technique to simplify, cost
It is low, it is easily practical.
Specific embodiment
The step of nickel base antifriction anticorrosion alloy or immersion, is as follows:
Embodiment 1:1, cleaning plating piece surface, remove the greasy dirt and oxide layer and impurity on surface.It is first polished with sand paper, then
Cleaning.
2, the weight percent of a kind of Ni-Cr-Si-B system alloy of melting in furnace, contained each ingredient is Cr:16%, B:
4%, Si:4%, Ni:76%.1080 DEG C are heated to, is opened so that melt sufficiently melts, there is certain mobility.
3, the plating piece of processed clean surface is preheated in stokehold, the thickness 0.3mm of coating, 550 DEG C of preheating temperature,
Then the plating piece after preheating is quickly immersed in molten bath, the immersion plating time 3 seconds.This process carries out under hydrogen protection, to prevent
The oxidation of metal.
4, the product after hot-dip is moved to room temperature area makes its natural cooling.One just is formd on steel part surface in this way
The wear-and corrosion-resistant coating that layer is had excellent performance.
Embodiment 2:1, the steel pipe that plating piece is 30 × 5000mm, clean plating piece surface, remove greasy dirt and the oxidation on surface
Layer and impurity.
Blasting treatment is first carried out, is then cleaned.
2, the weight percent of a kind of Ni-Cr-Si-B system alloy of melting in furnace, contained each ingredient is Cr:15%, B:
3%, Si:4%, Ni:74%, Fe:3%, C:1%.1100 DEG C are heated to, is opened so that melt sufficiently melts, there is certain stream
Dynamic property.
3, the steel pipe of processed clean surface is preheated in stokehold, the thickness 0.15mm of coating, 880 DEG C of preheating temperature,
Then the steel pipe after preheating is quickly immersed in molten bath makes the immersion plating simultaneously of its surfaces externally and internally, and the immersion plating time 3 seconds.This process is in nitrogen
The oxidation to prevent metal is carried out under gas shielded.
4, the steel pipe after hot-dip is moved to room temperature area makes its natural cooling.It is just formed simultaneously in this way in steel pipe surfaces externally and internally
One layer of wear-and corrosion-resistant coating haveing excellent performance.
Claims (3)
1. a kind of hot dip coating method for nickel base antifriction anticorrosion alloy, it is characterised in that: method includes: a, cleaning plating piece surface, is removed
The greasy dirt and oxide layer and impurity on surface；B, the melting Ni-Cr-Si-B system alloy under vacuum or inert gas shielding in furnace,
980~1150 DEG C are heated to, it is made to be fused into plating solution；C, it will be carried out before the metal product coating piece hot-dip of removing surface pre-
Heat；D, the plating piece after preheating is immersed in the plating solution of nickel-base alloy and carries out hot-dip, the immersion plating time is 0.5~60 second；E, it moves
To outside furnace, room temperature natural cooling under vacuum or inert gas shielding.
2. according to the method described in claim 1, it is characterized by: the Ingredients Weight percentage of Ni-Cr-Si-B system alloy
Than for Cr:5~20%, B:1~6%, Si:1~6%, C:0~1 %, Fe :≤10%, Ni: surplus.
3. according to the method described in claim 1, it is characterized by: the preheating temperature is 500~900 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711313664.3A CN109913783A (en) | 2017-12-12 | 2017-12-12 | A kind of hot dip coating method for nickel base antifriction anticorrosion alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711313664.3A CN109913783A (en) | 2017-12-12 | 2017-12-12 | A kind of hot dip coating method for nickel base antifriction anticorrosion alloy |
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| Publication Number | Publication Date |
|---|---|
| CN109913783A true CN109913783A (en) | 2019-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711313664.3A Withdrawn CN109913783A (en) | 2017-12-12 | 2017-12-12 | A kind of hot dip coating method for nickel base antifriction anticorrosion alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635061A (en) * | 2022-03-17 | 2022-06-17 | 索特传动设备有限公司 | Nickel-based alloy, floating seal ring, engineering machine and manufacturing method of floating seal ring |
-
2017
- 2017-12-12 CN CN201711313664.3A patent/CN109913783A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635061A (en) * | 2022-03-17 | 2022-06-17 | 索特传动设备有限公司 | Nickel-based alloy, floating seal ring, engineering machine and manufacturing method of floating seal ring |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190621 |
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| WW01 | Invention patent application withdrawn after publication |