CN109023340A - The production technology of corrosion resistant ball valve - Google Patents
The production technology of corrosion resistant ball valve Download PDFInfo
- Publication number
- CN109023340A CN109023340A CN201810955239.2A CN201810955239A CN109023340A CN 109023340 A CN109023340 A CN 109023340A CN 201810955239 A CN201810955239 A CN 201810955239A CN 109023340 A CN109023340 A CN 109023340A
- Authority
- CN
- China
- Prior art keywords
- spool
- ball valve
- corrosion resistant
- resistant ball
- production technology
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses the production technologies of corrosion resistant ball valve, including the following steps: 1) then the mixture for obtaining Co-based alloy powder and powdered graphite is fitted into the alloy coat mixed in spraying equipment；2) spool processed is washed, is then fed into drying equipment drying process, is air-cooled to room temperature；Spool after cooling is sent into heating in medium frequency stove heating, with spray gun to spool face even application alloy coat, 500-650 DEG C is then heated rapidly to, keeps the temperature 15min；3) spool is heated again, is cooled to room temperature into the first cooling process, then spool heats in entering tempering furnace, is cooled to room temperature subsequently into the second cooling process.The production technology of corrosion resistant ball valve of the present invention, it realizes and a laminated gold plating is coated to the spool face of corrosion resistant ball valve, not only increase the intensity of spool, and increase the corrosion resistance of spool, wearability, inoxidizability increase the service life of spool, a large amount of resource, save the cost are saved.
Description
Technical field
The present invention relates to a kind of ball valves, and in particular to the production technology of corrosion resistant ball valve.
Background technique
Valve is widely used in modern society.Especially in water heating pipe fittings technical field, the valve of the prior art has
Many kinds mainly have ball valve, angle valve, shut-off valve etc., and wherein ball-valve structure is relatively simple, and the spool of mainly ball valve is simpler
It is single.The spool of ball valve is in symmetrical chondritic on the whole, the cylindric through-hole that centre has a perforation whole, in the outer of spool
Laterally it is provided with the valve rod groove that is connected with valve rod at sphere centre position, when work, rotation valve rod makes the cylinder of spool
The inlet and outlet of shape through-hole alignment ball valve when stopping working, rotate backward the disengaging that valve rod makes the spherical surface of spool be directed at ball valve
Mouthful.It is relatively simple for structure due to ball valve, it is easy to operate.So in the very extensive of valve technology field application.And realize ball
The major part of the sealing function of valve is spool and sealing ring engaged therewith, and the spool of ball valve occurs wearing or rupture just
It easily reveals, scraps entire ball valve, therefore improve the pressing process of highly corrosion resistant ball valve core, keep its more reliable just
Seem particularly necessary.Currently, both at home and abroad for valve using more and more extensive, and the environment used is more and more severe, and it is right
Also higher and higher in the requirement of valve, therefore, the requirement for spool is also constantly being promoted, the wearability of spool, corrosion resistance,
The problems such as heat-resisting ability, is increasingly prominent, and spool is chronically in liquid, and by the impact of liquid, corrosion etc. causes spool
Service life greatly shortens, and replacement frequently, considerably increases production cost.
Summary of the invention
The technical problem to be solved by the present invention is to currently, both at home and abroad for valve using more and more extensive, and make
Environment is more and more severe, and the requirement for valve is also higher and higher, and therefore, the requirement for spool is also constantly being promoted,
The problems such as wearability of spool, corrosion resistance, heat-resisting ability, is increasingly prominent, and spool is chronically in liquid, by liquid
Impact, corrosion etc., causes the service life of spool to greatly shorten, and replacement frequently, considerably increases production cost, it is therefore intended that mention
For the production technology of corrosion resistant ball valve, realizes and a laminated gold plating is coated to the spool face of corrosion resistant ball valve, not only increase
The intensity of spool, and the corrosion resistance of spool is increased, wearability, inoxidizability increases the service life of spool, section
About a large amount of resource, save the cost.
The present invention is achieved through the following technical solutions:
The production technology of corrosion resistant ball valve, including the following steps: 1) Co-based alloy powder is obtained by mechanical mixture mode
With the mixture of powdered graphite, powder size is then fed into drier and is dried in 250-300 mesh, drying temperature 70-
95 DEG C, drying time are as follows: then 15-30min is fitted into the alloy coat mixed in spraying equipment；2) valve that will be processed
Core is first washed, and is then fed into drying equipment and is dried, and drying temperature is at 80-90 DEG C, drying time 5-
Then 10min is air-cooled to room temperature；Spool after cooling feeding intermediate-frequency heating furnace is heated to 400-450 DEG C, subsequently into spraying
In equipment, 500- is then heated rapidly to a thickness of 0.03-0.08mm to spool face even application alloy coat with spray gun
650 DEG C, keep the temperature 15min；3) spool is heated to 1000-1200 DEG C again, 12-15min is kept the temperature, subsequently into the first cooling process
It is cooled to room temperature, then spool is heated to 500-550 DEG C in entering tempering furnace, is cooled to room subsequently into the second cooling process
Temperature；4) spool after cooling is examined, is put in storage；Wherein, Co-based alloy powder chemical component by weight percentage are as follows: Ti:0.5-
1.2%, Cr:18-20%, Si:2.4-4.2%, P:3.0-3.5%, Sn:0.6-1.0%, As:0.02-0.06%, Mo:3.2-
3.8%, Fe:5-10%, C:1-1.5%, Cu:1.2-2.4%, compound rare-earth 1-2.8%, remaining is Ni.
The present invention fits the compound rare-earth of content by being added, and can obviously improve the crystalline structure of metal billet, is allowed to tough and tensile,
Cold-forming property improves, and can obtain rare earth element recovery rate to the maximum extent, and be uniformly distributed it in alloy coat,
Its intensity, wearability are obviously increased, corrosion resistance obtains unexpected technical effect.
The present invention increases the corrosion-resistant of spool by uniformly coating nickel-base alloy and graphite linings in spool face, resistance to
Mill, ability resistant to high temperature add Cu to improve corrosion resistance of the nickel in reductant, and in the flow at high speed seawater of inflation
Even passivity；Cr assigns anti-oxidant, sulfuration resistant the ability under the resistance to corrosion and high temperature of nickel under oxidative conditions；Mo is aobvious
Write the corrosion stability for improving nickel in reproducibility acid；Cr is added simultaneously in nickel alloy, Mo element can improve it in oxidisability simultaneously
Corrosion resistance in medium and reductant.
The present invention realizes and coats a laminated gold plating to the spool face of corrosion resistant ball valve, not only increases spool
Intensity, and the corrosion resistance of spool is increased, wearability, inoxidizability increases the service life of spool, has saved a large amount of
Resource, save the cost.
Co-based alloy powder chemical component by weight percentage are as follows: Ti:0.7-1.0%, Cr:18-20%, Si:3.0-
3.5%, P:3.0-3.3%, Sn:0.7-0.9%, As:0.04-0.06%, Mo:3.5-3.8%, Fe:6-8%, C:1-
1.2%, Cu:1.8-2.0%, compound rare-earth 1.5-2.5%, remaining is Ni.
Co-based alloy powder chemical component by weight percentage are as follows: Ti:0.5%, Cr:18%, Si:2.4%, P:3.0%,
Sn:0.6%, As:0.02%, Mo:3.2%, Fe:5%, C:1%, Cu:1.2%, compound rare-earth 1%, remaining is Ni.
Co-based alloy powder chemical component by weight percentage are as follows: Ti:0.9%, Cr:19%, Si:3.2%, P:3.3%,
Sn:0.8%, As:0.04%, Mo:3.5%, Fe:8%, C:1.3%, Cu:1.9%, compound rare-earth 2%, remaining is Ni.
Co-based alloy powder chemical component by weight percentage are as follows: Ti:1.2%, Cr:20%, Si:4.2%, P:3.5%,
Sn:1.0%, As:0.06%, Mo:3.8%, Fe:10%, C:1.5%, Cu:2.4%, compound rare-earth 2.8%, remaining is Ni.
Compared with prior art, the present invention having the following advantages and benefits:
The production technology of corrosion resistant ball valve of the present invention is realized and is applied to the laminated gold of spool face cladding one of corrosion resistant ball valve
Layer, not only increases the intensity of spool, and increase the corrosion resistance of spool, wearability, inoxidizability increases spool
Service life has saved a large amount of resource, save the cost.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment, the present invention is made
Further to be described in detail, exemplary embodiment of the invention and its explanation for explaining only the invention, are not intended as to this
The restriction of invention.
Embodiment 1
The production technology of corrosion resistant ball valve of the present invention, including the following steps: 1) Ni-based conjunction is obtained by mechanical mixture mode
The mixture at bronze end and powdered graphite, powder size are then fed into drier and are dried in 250 mesh, and drying temperature is
70 DEG C, drying time are as follows: then 15min is fitted into the alloy coat mixed in spraying equipment；2) by the spool processed elder generation
It is washed, is then fed into drying equipment and is dried, drying temperature is then air-cooled at 80 DEG C, drying time 5min
To room temperature；Spool after cooling feeding intermediate-frequency heating furnace is heated to 400 DEG C, subsequently into spraying equipment, with spray gun to valve
Then wicking surface even application alloy coat is heated rapidly to 500 DEG C with a thickness of 0.03mm, keep the temperature 15min；3) again by spool
1000 DEG C are heated to, 12min is kept the temperature, is cooled to room temperature subsequently into the first cooling process, then spool is in entering tempering furnace
500 DEG C are heated to, is cooled to room temperature subsequently into the second cooling process；4) spool after cooling is examined, is put in storage；Wherein, nickel
Base alloy powder chemical component by weight percentage are as follows: Ti:0.5%, Cr:18%, Si:2.4%, P:3.0%, Sn:0.6%,
As:0.02%, Mo:3.2%, Fe:5%, C:1%, Cu:1.2%, compound rare-earth 1%, remaining is Ni.
Embodiment 2
The production technology of corrosion resistant ball valve of the present invention, including the following steps: 1) Ni-based conjunction is obtained by mechanical mixture mode
The mixture at bronze end and powdered graphite, powder size are then fed into drier and are dried in 300 mesh, and drying temperature is
95 DEG C, drying time are as follows: then 30min is fitted into the alloy coat mixed in spraying equipment；2) by the spool processed elder generation
It is washed, is then fed into drying equipment and is dried, drying temperature is then air-cooled at 90 DEG C, drying time 10min
To room temperature；Spool after cooling feeding intermediate-frequency heating furnace is heated to 450 DEG C, subsequently into spraying equipment, with spray gun to valve
Then wicking surface even application alloy coat is heated rapidly to 650 DEG C with a thickness of 0.08mm, keep the temperature 15min；3) again by spool
1200 DEG C are heated to, 15min is kept the temperature, is cooled to room temperature subsequently into the first cooling process, then spool is in entering tempering furnace
550 DEG C are heated to, is cooled to room temperature subsequently into the second cooling process；4) spool after cooling is examined, is put in storage；Wherein, nickel
Base alloy powder chemical component by weight percentage are as follows: Ti:0.9%, Cr:19%, Si:3.2%, P:3.3%, Sn:0.8%,
As:0.04%, Mo:3.5%, Fe:8%, C:1.3%, Cu:1.9%, compound rare-earth 2%, remaining is Ni.
Embodiment 3
The production technology of corrosion resistant ball valve of the present invention, including the following steps: 1) Ni-based conjunction is obtained by mechanical mixture mode
The mixture at bronze end and powdered graphite, powder size are then fed into drier and are dried in 280 mesh, and drying temperature is
85 DEG C, drying time are as follows: then 25min is fitted into the alloy coat mixed in spraying equipment；2) by the spool processed elder generation
It is washed, is then fed into drying equipment and is dried, drying temperature is then air-cooled at 85 DEG C, drying time 8min
To room temperature；Spool after cooling feeding intermediate-frequency heating furnace is heated to 420 DEG C, subsequently into spraying equipment, with spray gun to valve
Then wicking surface even application alloy coat is heated rapidly to 600 DEG C with a thickness of 0.05mm, keep the temperature 15min；3) again by spool
1100 DEG C are heated to, 13min is kept the temperature, is cooled to room temperature subsequently into the first cooling process, then spool is in entering tempering furnace
530 DEG C are heated to, is cooled to room temperature subsequently into the second cooling process；4) spool after cooling is examined, is put in storage；Wherein, nickel
Base alloy powder chemical component by weight percentage are as follows: Ti:1.2%, Cr:20%, Si:4.2%, P:3.5%, Sn:1.0%,
As:0.06%, Mo:3.8%, Fe:10%, C:1.5%, Cu:2.4%, compound rare-earth 2.8%, remaining is Ni.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (5)
1. the production technology of corrosion resistant ball valve, characterized in that it comprises the following steps: 1) obtained by mechanical mixture mode Ni-based
The mixture of alloy powder and powdered graphite, powder size are then fed into drier and are dried in 250-300 mesh, dry
Temperature is 70-95 DEG C, drying time are as follows: then 15-30min is fitted into the alloy coat mixed in spraying equipment；2) will add
The good spool of work is first washed, and is then fed into drying equipment and is dried, and drying temperature is at 80-90 DEG C, drying time
For 5-10min, it is then air-cooled to room temperature；Spool after cooling feeding intermediate-frequency heating furnace is heated to 400-450 DEG C, subsequently into
In spraying equipment, then it is heated rapidly to spool face even application alloy coat with a thickness of 0.03-0.08mm with spray gun
500-650 DEG C, keep the temperature 15min；3) spool is heated to 1000-1200 DEG C again, keeps the temperature 12-15min, it is cooling subsequently into first
Process is cooled to room temperature, and then spool is heated to 500-550 DEG C in entering tempering furnace, cooling subsequently into the second cooling process
To room temperature；4) spool after cooling is examined, is put in storage；Wherein, Co-based alloy powder chemical component by weight percentage are as follows: Ti:
0.5-1.2%, Cr:18-20%, Si:2.4-4.2%, P:3.0-3.5%, Sn:0.6-1.0%, As:0.02-0.06%, Mo:
3.2-3.8%, Fe:5-10%, C:1-1.5%, Cu:1.2-2.4%, compound rare-earth 1-2.8%, remaining is Ni.
2. the production technology of corrosion resistant ball valve according to claim 1, which is characterized in that Co-based alloy powder by weight hundred
Divide and compares chemical component are as follows: Ti:0.7-1.0%, Cr:18-20%, Si:3.0-3.5%, P:3.0-3.3%, Sn:0.7-0.9%,
As:0.04-0.06%, Mo:3.5-3.8%, Fe:6-8%, C:1-1.2%, Cu:1.8-2.0%, compound rare-earth 1.5-
2.5%, remaining is Ni.
3. the production technology of corrosion resistant ball valve according to claim 1, which is characterized in that Co-based alloy powder by weight hundred
Divide and compares chemical component are as follows: Ti:0.5%, Cr:18%, Si:2.4%, P:3.0%, Sn:0.6%, As:0.02%, Mo:3.2%,
Fe:5%, C:1%, Cu:1.2%, compound rare-earth 1%, remaining is Ni.
4. the production technology of corrosion resistant ball valve according to claim 1, which is characterized in that Co-based alloy powder by weight hundred
Divide and compares chemical component are as follows: Ti:0.9%, Cr:19%, Si:3.2%, P:3.3%, Sn:0.8%, As:0.04%, Mo:3.5%,
Fe:8%, C:1.3%, Cu:1.9%, compound rare-earth 2%, remaining is Ni.
5. the production technology of corrosion resistant ball valve according to claim 1, which is characterized in that Co-based alloy powder by weight hundred
Divide and compares chemical component are as follows: Ti:1.2%, Cr:20%, Si:4.2%, P:3.5%, Sn:1.0%, As:0.06%, Mo:3.8%,
Fe:10%, C:1.5%, Cu:2.4%, compound rare-earth 2.8%, remaining is Ni.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955239.2A CN109023340A (en) | 2018-08-21 | 2018-08-21 | The production technology of corrosion resistant ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955239.2A CN109023340A (en) | 2018-08-21 | 2018-08-21 | The production technology of corrosion resistant ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109023340A true CN109023340A (en) | 2018-12-18 |
Family
ID=64627262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810955239.2A Withdrawn CN109023340A (en) | 2018-08-21 | 2018-08-21 | The production technology of corrosion resistant ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109023340A (en) |
-
2018
- 2018-08-21 CN CN201810955239.2A patent/CN109023340A/en not_active Withdrawn
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181218 |