CN108588617A - The preparation process of ball valve antiseptic wearable coat - Google Patents

The preparation process of ball valve antiseptic wearable coat Download PDF

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Publication number
CN108588617A
CN108588617A CN201810246885.1A CN201810246885A CN108588617A CN 108588617 A CN108588617 A CN 108588617A CN 201810246885 A CN201810246885 A CN 201810246885A CN 108588617 A CN108588617 A CN 108588617A
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powder
10co4cr
nicrbsi
sphere
spraying
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CN108588617B (en
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章诗岐
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WUXI FULAIDA PETROLEUM MACHINERY Co Ltd
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WUXI FULAIDA PETROLEUM MACHINERY Co Ltd
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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
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/129—Flame spraying
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/057—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
    • 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
    • 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
    • C23C4/08—Metallic material containing only metal elements

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Nozzles (AREA)

Abstract

The present invention relates to a kind of preparation processes of ball valve antiseptic wearable coat, characterized in that includes the following steps：The bottom of layer of Ni CrBSi alloy coats is first sprayed using supersonic flame spraying technique on valve seat and sphere, then, in the upper face layer for spraying one layer of alloy carbide layer again of the coating.Since the price of NiCrBSi alloy powders is lower than alloy carbide powder, and deposition higher, the manufacturing cost of composite coating is set to reduce by 30% or so, in addition, double coating structures are while the wear resistance maintained like, also there is higher corrosion resistance, be very suitable for answering the preparation of sealing valve croquet and valve seat coating.

Description

The preparation process of ball valve antiseptic wearable coat
Technical field
The present invention relates to a kind of preparation processes of ball valve antiseptic wearable coat, belong to technical field of material surface treatment.
Background technology
Currently, WC-10Co4Cr coatings are prepared on sphere and valve seat using supersonic flame spraying technique for sealing firmly The anticorrosion antiwear of ball valve has been obtained for being widely applied.But use supersonic flame spraying WC-10Co4Cr coated powders heavy Product rate is relatively low（Generally below 45%）, also, since WC and Co powder prices rise steadily so that the valence of WC-10Co4Cr materials Lattice are also higher and higher, for this purpose, being badly in need of being improved coating structure and material, could reduce the system of hard sealed valve protective coating Standby cost.
Invention content
The purpose of the present invention is overcoming the deficiencies in the prior art, a kind of preparation of ball valve antiseptic wearable coat is provided Technique can be substantially reduced the coating manufacturing cost of hard sealed valve while keeping coating wear-and corrosion-resistant performance.
According to technical solution provided by the invention, the preparation process of the ball valve antiseptic wearable coat, characterized in that including Following steps：
（1）By sphere and valve seat part is cleaned by ultrasonic oil removing by multi-pass and washing drying activates using sandblasting and be roughened ball The surface of body and valve seat；
（2）Sphere is moved on rotary table, and with shaft synchronous rotary, spray gun is using supersonic flame spraying technique to ball Body sprays NiCrBSi powder and WC-10Co4Cr powder successively, to form NiCrBSi bottoms and WC- in spherome surface The faces 10Co4Cr layer；
（3）Sphere is ground after spraying, and stock removal is 50-60 μm, and amount of grinding is about 5 μm；
（4）Valve seat is fixed on level clamp, spray gun sprays NiCrBSi successively using supersonic flame spraying technique to valve seat Powder and WC-10Co4Cr powder, to form NiCrBSi bottoms and the faces WC-10Co4Cr layer in valve base surface；
（4）Valve seat spraying complete after after corase grinding, fine grinding and super grinding with sphere to grinding；
The ingredient of the NiCrBSi powder is：C：0.7-1%, B：3.0-4.5%, Si:3.5-5.5%, Cr: 15.0- 18.0%, Fe≤5.0, surplus N；The ingredient of the WC-10Co4Cr powder is：WC：86%, Co：10%, Cr：4%.
Further, the thickness of the NiCrBSi coatings is about 150 μm, and the thickness of WC-10Co4Cr coatings is about 150 μ m。
Further, it for fuel and oxygen is combustion-supporting gas that the supersonic flame spraying system, which uses liquid kerosene, or It is combustion-supporting gas to use using propane or propylene as fuel, oxygen or/and air.
Further, the step（2）The flow of kerosene is 20L/h when middle spraying NiCrBSi powder, and the flow of oxygen is 55m3/ h, powder feeding rate are 70g/min, spray distance 380mm.
Further, the step（2）The flow of kerosene is 25L/h, the stream of oxygen when middle spraying WC-10Co4Cr powder Amount is 55m3/ h, powder feeding rate are 70g/min, spray distance 380mm.
Further, the step（4）The flow of kerosene is 20L/h when middle spraying NiCrBSi powder, and the flow of oxygen is 55m3/ h, powder feeding rate are 70g/min, spray distance 380mm.
Further, the step（4）The flow of kerosene is 22L/h, the stream of oxygen when middle spraying WC-10Co4Cr powder Amount is 55m3/ h, powder feeding rate are 70g/min, spray distance 380mm.
Further, the step（2）Middle spray gun is moved by arc track, keeps spray gun flame stream alignment with the ball always The linear velocity of the heart, sphere rotation is 600mm/s, and the step pitch of spray gun movement is 5mm；The step（4）Middle spray gun does reciprocating linear Movement, spray gun movement speed is 600mm/s, step pitch 5mm, and keeps spray gun flame stream vertical with valve seat coating surface to be painted.
Further, the step（1）In middle sphere and valve seat sandblasting procedures, compressed air pressure 0.4-0.6MPa, Sand fineness is 20-40 mesh, and sandblasting rear surface roughness is Ra4-8.
Further, the step（4）The overall thickness of coating is 230-240 μm after grinding.
The present invention has the following advantages：
（1）Structure of the present invention using NiCrBSi as bottom WC-10Co4Cr coatings as face layer can be kept and single WC- 10Co4Cr coatings wear-resisting property having the same and preferably corrosion resistance, and coating manufacturing cost can reduce by 30% or so （The price of NiCrBSi powder only has the one third of WC-10Co4Cr powder, the deposition ratio WC- of NiCrBSi powder 10Co4Cr powder is high by 55%, also, the density of NiCrBSi only has WC-10Co4Cr half or so）；
（2）Valve seat uses slightly lower kerosene oil flow, is sprayed on hardness of the coating hardness on valve seat than the coating on sphere in this way Low HV100 or so, this makes during the use of ball valve, and abrasion occurs mainly on valve seat, and sphere is not easy to be scratched, Substantially prolong the service life of hard seal ball valve.
Description of the drawings
Fig. 1 is structural schematic diagrams of the NiCrBSi as bottom WC-10Co4Cr coatings as face layer.
Fig. 2 is section metallographs of the NiCrBSi as bottom WC-10Co4Cr coatings as face layer.
Specific implementation mode
With reference to specific attached drawing, the invention will be further described.
Embodiment 1：
（1）It is that the sphere of 316 stainless steels and valve seat part are cleaned by ultrasonic by two passages at oil removing and washing drying by material Reason；
（2）Granularity is used to be roughened to spherome surface under the pressure that pressure is 0.4-0.6MPa for the white fused alumina sand of 20-40 Processing, the surface roughness after blasting treatment are Ra4-7；
（3）The sphere is moved on rotary table, and with shaft synchronous rotary, sphere is sprayed successively using JP8000 spray guns NiCrBSi powder and WC-10Co4Cr powder, to form NiCrBSi bottoms and the faces WC-10Co4Cr layer in spherome surface；Its In, spray gun is controlled with six axis robot, drives spray gun to be moved by arc track, and keep spray gun flame stream alignment with the ball always The heart, also, the linear velocity difference of ball is corresponded to according to spray spot and adjusts spray gun movement speed, apply thickness to ensure to deposit to ball surface The uniformity of degree；Under normal circumstances, the linear velocity of sphere rotation is 600mm/s, and the step pitch of spray gun movement is 5mm；It is described The ingredient of NiCrBSi powder is：C：1%, B：4.5%, Si:5.5%, Cr:18.0%, Fe≤5.0, surplus N；The WC- The ingredient of 10Co4Cr powder is：WC：86%, Co：10%, Cr：4%；
The flow of kerosene is 20L/h when spraying NiCrBSi powder, and the flow of oxygen is 55m3/ h, powder feeding rate are 70g/min, spray It is 380mm to apply distance, and the thickness of obtained NiCrBSi coatings is 150 μm；The flow of kerosene is when spraying WC-10Co4Cr powder The flow of 25L/h, oxygen are 55m3/ h, powder feeding rate are 70g/min, spray distance 380mm, obtained WC-10Co4Cr coatings Thickness be 150 μm；
（4）Sphere is ground after spraying, and stock removal is 50-60 μm, and amount of grinding is 5 μm；
（5）Valve seat is fixed on level clamp, spray gun sprays NiCrBSi successively using supersonic flame spraying technique to valve seat Powder and WC-10Co4Cr powder, to form NiCrBSi bottoms and the faces WC-10Co4Cr layer in valve base surface；Wherein, spray gun It is controlled with six axis robot, spray gun is driven to do linear reciprocating motion, spray gun movement speed is 600mm/s, and spray gun moving step pitch is 5mm, and keep spray gun flame stream vertical with valve seat coating surface to be painted；The ingredient of the NiCrBSi powder is：C：1%, B：4.5%, Si:5.5%, Cr:18.0%, Fe≤5.0, surplus N；The ingredient of the WC-10Co4Cr powder is：WC：86%, Co：10%, Cr： 4%；
The flow of kerosene is 20L/h when spraying NiCrBSi powder, and the flow of oxygen is 55m3/ h, powder feeding rate are 70g/min, spray It is 380mm to apply distance, and the thickness of obtained NiCrBSi coatings is 150 μm；The flow of kerosene is when spraying WC-10Co4Cr powder The flow of 22L/h, oxygen are 55m3/ h, powder feeding rate are 70g/min, spray distance 380mm, obtained WC-10Co4Cr coatings Thickness be 150 μm；
（4）Valve seat spraying complete after after corase grinding, fine grinding and super grinding with sphere to grinding, to improve the sealing of sphere and valve base chamber Performance.
As shown in Figure 1, the structural schematic diagram for NiCrBSi as bottom WC-10Co4Cr coatings as face layer, wherein 1 is Matrix（Sphere or valve seat）, 2 be NiCrBSi coatings, and 3 be WC-10Co4Cr coatings.As shown in Fig. 2, for NiCrBSi as bottom Section metallograph of the WC-10Co4Cr coatings as face layer.
Embodiment 2：
（1）It is that the sphere of 316 stainless steels and valve seat part are cleaned by ultrasonic by two passages at oil removing and washing drying by material Reason；
（2）Granularity is used to be roughened to spherome surface under the pressure that pressure is 0.4-0.6MPa for the white fused alumina sand of 20-40 Processing, the surface roughness after blasting treatment are Ra4-7；
（3）The sphere is moved on rotary table, and with shaft synchronous rotary, sphere is sprayed successively using JP8000 spray guns NiCrBSi powder and WC-10Co4Cr powder, to form NiCrBSi bottoms and the faces WC-10Co4Cr layer in spherome surface；Its In, spray gun is controlled with six axis robot, drives spray gun to be moved by arc track, and keep spray gun flame stream alignment with the ball always The heart, also, the linear velocity difference of ball is corresponded to according to spray spot and adjusts spray gun movement speed, apply thickness to ensure to deposit to ball surface The uniformity of degree；Under normal circumstances, the linear velocity of sphere rotation is 600mm/s, and the step pitch of spray gun movement is 5mm；It is described The ingredient of NiCrBSi powder is：C：0.7%, B：3.0%, Si:3.5%, Cr:15.0%, Fe≤5.0, surplus N；The WC- The ingredient of 10Co4Cr powder is：WC：86%, Co：10%, Cr：4%；
The flow of kerosene is 20L/h when spraying NiCrBSi powder, and the flow of oxygen is 55m3/ h, powder feeding rate are 70g/min, spray It is 380mm to apply distance, and the thickness of obtained NiCrBSi coatings is 150 μm；The flow of kerosene is when spraying WC-10Co4Cr powder The flow of 25L/h, oxygen are 55m3/ h, powder feeding rate are 70g/min, spray distance 380mm, obtained WC-10Co4Cr coatings Thickness be 150 μm；
（4）Sphere is ground after spraying, and stock removal is 50-60 μm, and amount of grinding is 5 μm；
（5）Valve seat is fixed on level clamp, spray gun sprays NiCrBSi successively using supersonic flame spraying technique to valve seat Powder and WC-10Co4Cr powder, to form NiCrBSi bottoms and the faces WC-10Co4Cr layer in valve base surface；Wherein, spray gun It is controlled with six axis robot, spray gun is driven to do linear reciprocating motion, spray gun movement speed is 600mm/s, and spray gun moving step pitch is 5mm, and keep spray gun flame stream vertical with valve seat；The ingredient of the NiCrBSi powder is：C：0.7%, B：3.0%, Si: 3.5%, Cr:15.0%, Fe≤5.0, surplus N；The ingredient of the WC-10Co4Cr powder is：WC：86%, Co：10%, Cr： 4%；
The flow of kerosene is 20L/h when spraying NiCrBSi powder, and the flow of oxygen is 55m3/ h, powder feeding rate are 70g/min, spray It is 380mm to apply distance, and the thickness of obtained NiCrBSi coatings is 150 μm；The flow of kerosene is when spraying WC-10Co4Cr powder The flow of 22L/h, oxygen are 55m3/ h, powder feeding rate are 70g/min, spray distance 380mm, obtained WC-10Co4Cr coatings Thickness be 150 μm；
（4）Valve seat spraying complete after after corase grinding, fine grinding and super grinding with sphere to grinding, to improve the sealing of sphere and valve base chamber Performance.
Embodiment 3：
（1）It is that the sphere of 316 stainless steels and valve seat part are cleaned by ultrasonic by two passages at oil removing and washing drying by material Reason；
（2）Granularity is used to be roughened to spherome surface under the pressure that pressure is 0.4-0.6MPa for the white fused alumina sand of 20-40 Processing, the surface roughness after blasting treatment are Ra4-7；
（3）The sphere is moved on rotary table, and with shaft synchronous rotary, sphere is sprayed successively using JP8000 spray guns NiCrBSi powder and WC-10Co4Cr powder, to form NiCrBSi bottoms and the faces WC-10Co4Cr layer in spherome surface；Its In, spray gun is controlled with six axis robot, drives spray gun to be moved by arc track, and keep spray gun flame stream alignment with the ball always The heart, also, the linear velocity difference of ball is corresponded to according to spray spot and adjusts spray gun movement speed, apply thickness to ensure to deposit to ball surface The uniformity of degree；Under normal circumstances, the speed of sphere rotation is 600mm/s, and the step pitch of spray gun movement is 5mm；It is described The ingredient of NiCrBSi powder is：C：0.8%, B：4%, Si:4.5%, Cr:16.0%, Fe≤5.0, surplus N；The WC- The ingredient of 10Co4Cr powder is：WC：86%, Co：10%, Cr：4%；
The flow of kerosene is 20L/h when spraying NiCrBSi powder, and the flow of oxygen is 55m3/ h, powder feeding rate are 70g/min, spray It is 380mm to apply distance, and the thickness of obtained NiCrBSi coatings is 150 μm；The flow of kerosene is when spraying WC-10Co4Cr powder The flow of 25L/h, oxygen are 55m3/ h, powder feeding rate are 70g/min, spray distance 380mm, obtained WC-10Co4Cr coatings Thickness be 150 μm；
（4）Sphere is ground after spraying, and stock removal is 50-60 μm, and amount of grinding is 5 μm；
（5）Valve seat is fixed on level clamp, spray gun sprays NiCrBSi successively using supersonic flame spraying technique to valve seat Powder and WC-10Co4Cr powder, to form NiCrBSi bottoms and the faces WC-10Co4Cr layer in valve base surface；Wherein, spray gun It is controlled with six axis robot, spray gun is driven to do linear reciprocating motion, spray gun movement speed is 600mm/s, the step pitch of spray gun movement For 5mm, and keep spray gun flame stream vertical with valve seat；The ingredient of the NiCrBSi powder is：C：0.8%, B：4.%, Si: 4.5%, Cr:16.0%, Fe≤5.0, surplus N；The ingredient of the WC-10Co4Cr powder is：WC：86%, Co：10%, Cr： 4%；
The flow of kerosene is 20L/h when spraying NiCrBSi powder, and the flow of oxygen is 55m3/ h, powder feeding rate are 70g/min, spray It is 380mm to apply distance, and the thickness of obtained NiCrBSi coatings is 150 μm；The flow of kerosene is when spraying WC-10Co4Cr powder The flow of 22L/h, oxygen are 55m3/ h, powder feeding rate are 70g/min, spray distance 380mm, obtained WC-10Co4Cr coatings Thickness be 150 μm；
（4）Valve seat spraying complete after after corase grinding, fine grinding and super grinding with sphere to grinding, to improve the sealing of sphere and valve base chamber Performance.

Claims (10)

1. a kind of preparation process of ball valve antiseptic wearable coat, characterized in that include the following steps：
（1）By sphere and valve seat part is cleaned by ultrasonic oil removing by multi-pass and washing is dried, and activates and is roughened using sandblasting Sphere and valve base surface；
（2）Sphere is moved on rotary table, and with shaft synchronous rotary, using supersonic flame spraying technique to sphere according to Secondary spraying NiCrBSi powder and WC-10Co4Cr powder, to form NiCrBSi bottoms and the faces WC-10Co4Cr in spherome surface Layer；
（3）Sphere is ground again after spraying, and stock removal is 50-60 μm, and amount of grinding is 5 μm；
（4）Valve seat is fixed on level clamp, NiCrBSi powder sprays valve seat using supersonic flame spraying technique successively With WC-10Co4Cr powder, to valve base surface formed NiCrBSi bottoms and the faces WC-10Co4Cr layer；
（5）Valve seat spraying complete after after corase grinding, fine grinding and super grinding with sphere to grinding；
The ingredient of the NiCrBSi powder is：C：0.7-1%, B：3.0-4.5%, Si:3.5-5.5%, Cr:15.0-18.0%, Fe ≤ 5.0, surplus N；The ingredient of the WC-10Co4Cr powder is：WC：86%, Co：10%, Cr：4%.
2. the preparation process of ball valve antiseptic wearable coat as described in claim 1, it is characterized in that：The NiCrBSi coatings Thickness is about 150 μm, and the thickness of WC-10Co4Cr coatings is about 150 μm.
3. the preparation process of ball valve antiseptic wearable coat as described in claim 1, it is characterized in that：The supersonic flame spraying It for fuel and oxygen is combustion-supporting gas that system, which uses liquid kerosene, or is used using propane or propylene as fuel, oxygen or/and air For combustion-supporting gas.
4. the preparation process of ball valve antiseptic wearable coat as claimed in claim 3, it is characterized in that：The step（2）Middle spraying The flow of kerosene is 20L/h when NiCrBSi powder, and the flow of oxygen is 55m3/ h, powder feeding rate are 70g/min, and spray distance is 380mm。
5. the preparation process of ball valve antiseptic wearable coat as claimed in claim 3, it is characterized in that：The step（2）Middle spraying The flow of kerosene is 25L/h when WC-10Co4Cr powder, and the flow of oxygen is 55m3/ h, powder feeding rate are 70g/min, spray distance For 380mm.
6. the preparation process of ball valve antiseptic wearable coat as claimed in claim 3, it is characterized in that：The step（4）Middle spraying The flow of kerosene is 20L/h when NiCrBSi powder, and the flow of oxygen is 55m3/ h, powder feeding rate are 70g/min, and spray distance is 380mm。
7. the preparation process of ball valve antiseptic wearable coat as claimed in claim 3, it is characterized in that：The step（4）Middle spraying The flow of kerosene is 22L/h when WC-10Co4Cr powder, and the flow of oxygen is 55m3/ h, powder feeding rate are 70g/min, spray distance For 380mm.
8. the preparation process of ball valve antiseptic wearable coat as described in claim 1, it is characterized in that：The step（2）Middle spray gun It is moved by arc track, keeps spray gun flame stream to be directed at the centre of sphere always, the linear velocity of sphere rotation is 600mm/s, and spray gun moves Dynamic step pitch is 5mm；The step（4）Middle spray gun does linear reciprocating motion, and spray gun movement speed is 600mm/s, and step pitch is 5mm, and keep spray gun flame stream vertical with valve seat coating surface to be painted.
9. the preparation process of ball valve antiseptic wearable coat as described in claim 1, it is characterized in that：The step（1）Middle sphere In valve seat sandblasting procedures, compressed air pressure 0.4-0.6MPa, sand fineness is 20-40 mesh, sandblasting rear surface roughness For Ra4-8.
10. the preparation process of ball valve antiseptic wearable coat as described in claim 1, it is characterized in that：The step（4）Grinding adds The overall thickness of coating is 230-240 μm after work.
CN201810246885.1A 2018-03-23 2018-03-23 Preparation process of anticorrosive wear-resistant coating of ball valve Active CN108588617B (en)

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CN109433550A (en) * 2018-12-18 2019-03-08 郑州立佳热喷涂机械有限公司 The tungsten carbide wear-resistant coating spraying process of oil cylinder
CN110331360A (en) * 2019-08-22 2019-10-15 广东省新材料研究所 Paper for daily use dandy roll and the preparation method and application thereof
CN110421242A (en) * 2019-09-17 2019-11-08 中德云岭(成都)科技有限公司 A kind of wear resistant alloy material and the wear-resisting cutter ring plasma surfacing technique of shield machine
CN111118433A (en) * 2020-01-19 2020-05-08 云南云内动力机械制造有限公司 Thermal spraying engine valve seat ring wear-resistant coating, preparation method and application
CN111455306A (en) * 2020-05-07 2020-07-28 超达阀门集团股份有限公司 Manufacturing process of nickel-based tungsten carbide wear-resistant coating of metal hard sealing ball valve
CN113564595A (en) * 2021-08-27 2021-10-29 三一石油智能装备有限公司 Disordered alloy coating reinforced valve seat, preparation method thereof and pump
CN114921743A (en) * 2022-05-23 2022-08-19 广东粤科新材料科技有限公司 Method for prolonging service life of pressure chamber and injection head of die-casting machine by using composite coating

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Publication number Priority date Publication date Assignee Title
CN109433550A (en) * 2018-12-18 2019-03-08 郑州立佳热喷涂机械有限公司 The tungsten carbide wear-resistant coating spraying process of oil cylinder
CN110331360A (en) * 2019-08-22 2019-10-15 广东省新材料研究所 Paper for daily use dandy roll and the preparation method and application thereof
CN110421242A (en) * 2019-09-17 2019-11-08 中德云岭(成都)科技有限公司 A kind of wear resistant alloy material and the wear-resisting cutter ring plasma surfacing technique of shield machine
CN111118433A (en) * 2020-01-19 2020-05-08 云南云内动力机械制造有限公司 Thermal spraying engine valve seat ring wear-resistant coating, preparation method and application
CN111455306A (en) * 2020-05-07 2020-07-28 超达阀门集团股份有限公司 Manufacturing process of nickel-based tungsten carbide wear-resistant coating of metal hard sealing ball valve
CN113564595A (en) * 2021-08-27 2021-10-29 三一石油智能装备有限公司 Disordered alloy coating reinforced valve seat, preparation method thereof and pump
CN113564595B (en) * 2021-08-27 2023-09-12 三一石油智能装备有限公司 Disordered alloy coating reinforced valve seat, preparation method thereof and pump
CN114921743A (en) * 2022-05-23 2022-08-19 广东粤科新材料科技有限公司 Method for prolonging service life of pressure chamber and injection head of die-casting machine by using composite coating

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