CN104999732A - Antioxidant alloy material for sealing valve - Google Patents
Antioxidant alloy material for sealing valve Download PDFInfo
- Publication number
- CN104999732A CN104999732A CN201510335497.7A CN201510335497A CN104999732A CN 104999732 A CN104999732 A CN 104999732A CN 201510335497 A CN201510335497 A CN 201510335497A CN 104999732 A CN104999732 A CN 104999732A
- Authority
- CN
- China
- Prior art keywords
- alloy material
- antioxidant
- valve
- sealed valve
- stellite
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/752—Corrosion inhibitor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses an antioxidant alloy material for sealing a valve. The antioxidant alloy material for sealing the valve is formed by combining stellite arranged on the uppermost layer, a deoxidizing agent arranged on the middle layer and stainless acid-resisting steel arranged on the bottommost layer; the stellite is cobalt-chromium-tungsten alloy or Co-Cr-Mo alloy or cobalt-base alloy, the stellite accounts for 74%-76% of the total weight of the antioxidant alloy material for sealing the valve, the deoxiding agent accounts for 3%-5% of the total weight of the antioxidant alloy material for sealing the valve, and the stainless acid-resisting steel accounts for 20%-22% of the total weight of the antioxidant alloy material for sealing the valve. The antioxidant alloy material for sealing the valve has the advantages of corrosion resistance, scratch resistance, erosion resistance and oxidation resistance.
Description
Technical field
The present invention relates to a kind of Antioxidant alloy material for sealed valve.
Background technology
Purposes due to valve is widely, and therefore its role is also very large.Such as: in power plant, valve can control the running of boiler and steam turbine; In oil, Chemical Manufacture, valve equally also plays the normal operation controlling whole production equipment and technological process.Also be so in other departments.However, valve is more often ignored by people with other products.Such as: when install machinery equipment, people often lay stress on main machine equipment aspect, but ignore valve.Whole production efficiency can be made like this to reduce or stop production or cause all other accidents to occur.Therefore, to the selecting of valve, install, use etc. all must carry out careful and responsible work.
Driven by power valve is the valve of conventional type of drive, and the drive unit usually claiming this drive unit form is electric device for valve, and the feature of electric device for valve is as follows: 1) open and close rapidly, greatly can shorten the time needed for opening/shutting valve; 2) greatly can alleviate the labour intensity of operating personnel, be specially adapted to high pressure, large bore valves; 3) being applicable to be arranged on can not manual operation or inaccessible position, be easy to realize remote operation, and setting height(from bottom) is with unrestricted; 4) automation of whole system is conducive to; 5) power supply is than source of the gas with liquid source is easy obtains, its electric wire lay and safeguard also than compressed air and hydraulic line simply too much.
Summary of the invention
The invention provides one has corrosion-resistant, scratch resistance, erosion resistance, the Antioxidant alloy material for sealed valve of anti-oxidant advantage.
Technical scheme of the present invention is: a kind of Antioxidant alloy material for sealed valve, the described Antioxidant alloy material for sealed valve comprises the stellite of the superiors, the deoxidier in intermediate layer and undermost stainless acid resistant steel and combines, described stellite be cobalt-chromium-tungsten alloy, vitallium or
cobalt-base alloysdescribed stellite occupies the 74%-76% of the overall component of Antioxidant alloy material of sealed valve, described deoxidier occupies the 3%-5% of the overall component of Antioxidant alloy material of sealed valve, and described stainless acid resistant steel occupies the 20%-22% of the overall component of Antioxidant alloy material of sealed valve.
In a preferred embodiment of the present invention, described stainless acid resistant steel comprises molybdenum, vanadium, copper, manganese, nitrogen.
In a preferred embodiment of the present invention, described stellite occupies 74% of the overall component of Antioxidant alloy material of sealed valve, described deoxidier occupies 4% of the overall component of Antioxidant alloy material of sealed valve, and described stainless acid resistant steel occupies 22% of the overall component of Antioxidant alloy material of sealed valve.
A kind of Antioxidant alloy material for sealed valve of the present invention, has corrosion-resistant, scratch resistance, erosion resistance, oxidation resistant advantage.
Detailed description of the invention
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Wherein, the described Antioxidant alloy material for sealed valve comprises the stellite of the superiors, the deoxidier in intermediate layer and undermost stainless acid resistant steel and combines, described stellite be cobalt-chromium-tungsten alloy, vitallium or
cobalt-base alloysdescribed stellite occupies the 74%-76% of the overall component of Antioxidant alloy material of sealed valve, described deoxidier occupies the 3%-5% of the overall component of Antioxidant alloy material of sealed valve, described stainless acid resistant steel occupies the 20%-22% of the overall component of Antioxidant alloy material of sealed valve, and described stainless acid resistant steel comprises molybdenum, vanadium, copper, manganese, nitrogen.
Further illustrate, described stellite occupies 74% of the overall component of Antioxidant alloy material of sealed valve, described deoxidier occupies 4% of the overall component of Antioxidant alloy material of sealed valve, and described stainless acid resistant steel occupies 22% of the overall component of Antioxidant alloy material of sealed valve.
Further illustrate, in stellite
carbide's
heat endurancebetter.Shi ﹐ carbide that temperature is Shenged gathers coarsening rate ratio
nickel-base alloyin γ phase coarsening rate want slow, again back dissolving in matrix temperature also higher (reaching as high as 1100 DEG C), the intensity of Shi ﹐ stellite of therefore Shenging in temperature declines general slower.Stellite has good hot corrosion resistance, it is generally acknowledged, stellite is better than the reason of nickel-base alloy in this respect, is that the sulfide fusing point of cobalt is (as Co-Co4S3
eutectic, 877 DEG C) and higher than the sulfide fusing point (as Ni-Ni3S2 eutectic 645 DEG C) of nickel, and the diffusivity of sulphur in cobalt is than much lower in nickel.And because most of stellite is containing chromium
amount compares nickel-base alloyheight, so at alloy
surface energyform opposing
alkali metalsulfate (the Cr2O3 protective layer as Na2SO4 corrosion).But stellite oxidation resistance is usually much lower than nickel-base alloy.Early stage stellite is with non-
vacuum metlingproduce with casting technique.The alloy be developed into afterwards, as Mar-M509 alloy, because of containing more active element zirconium, boron etc., with vacuum metling and
vacuum pressing and castingproduce.
Further illustrate, acid resisting steel generally but has good rustless property again.This kind of steel, mainly containing the alloying element such as chromium, nickel, has and also contains a small amount of molybdenum, vanadium, copper, manganese, nitrogen or other elements.Chromium content have up to about 25% (steel of chrome content below 13% is only only anti-corrosion when corroding not strong), nickel content is up to about 20%.This kind of steel mainly for the manufacture of chemical industry equipment, medicine equipment, food industry machine and other require stainless device etc.Be main alloy element with chromium, containing Cr12 ~ 30%, C≤0.25%; Some steel grade also contains the elements such as Mo, Ti, as 1Cr17, and 1Cr25,0Cr18Mo2Ti etc.General in single-phase ferrite or half ferritic structure.Because this type of steel is homogeneous structure, there is no phase transformation, thus cannot make it strengthening by heat treatment.This type of steel thermal conductivity is comparatively large and coefficient of thermal expansion is less, and non-oxidizability is strong, and corrosion resistance increases with chromium amount in steel and improves, therefore is used for the parts and the heat-resistant part that manufacture resistance to air, steam, water and oxidizing acid and organic acid corrosion.The performance of their resistance to chloride stress corrosion is better than general Cr-Ni austenitic steel, but more responsive to intercrystalline corrosion.When increasing sulfur content (S0.35%) in steel, also there is good free cutting property.
If chrome content >=15% in steel, the Ductile-brittle transition temperature of ferritic stainless steel can be raised to more than room temperature, and there will be grain growth when >=900 DEG C of heating and cause occurring fragility.Also there will be σ phase fragility and 475 DEG C of fragility at 550 ~ 750 DEG C and 475 DEG C of extended stationary periods, but carbon containing, nitrogen total amount lower than the high-purity high chromium ferritic stainless steel of 150ppm as high-purity Cr18Mo2, high-purity Cr26Mo1 etc., substantially do not produce brittleness at room temperature.If used as welding assembly, welding process will take to prevent increasing carbon, the measure of nitrogen could obtain satisfactory performance.The invention provides a kind of Antioxidant alloy material for sealed valve, have corrosion-resistant, scratch resistance, erosion resistance, oxidation resistant advantage.
The specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention, and the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (3)
1. the Antioxidant alloy material for sealed valve, it is characterized in that: the described Antioxidant alloy material for sealed valve comprises the stellite of the superiors, the deoxidier in intermediate layer and undermost stainless acid resistant steel and combines, described stellite be cobalt-chromium-tungsten alloy, vitallium or
cobalt-base alloysdescribed stellite occupies the 74%-76% of the overall component of Antioxidant alloy material of sealed valve, described deoxidier occupies the 3%-5% of the overall component of Antioxidant alloy material of sealed valve, and described stainless acid resistant steel occupies the 20%-22% of the overall component of Antioxidant alloy material of sealed valve.
2. the Antioxidant alloy material for sealed valve according to claim 1, is characterized in that: described stainless acid resistant steel comprises molybdenum, vanadium, copper, manganese, nitrogen.
3. the Antioxidant alloy material for sealed valve according to claim 1, it is characterized in that: described stellite occupies 74% of the overall component of Antioxidant alloy material of sealed valve, described deoxidier occupies 4% of the overall component of Antioxidant alloy material of sealed valve, and described stainless acid resistant steel occupies 22% of the overall component of Antioxidant alloy material of sealed valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510335497.7A CN104999732A (en) | 2015-06-17 | 2015-06-17 | Antioxidant alloy material for sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510335497.7A CN104999732A (en) | 2015-06-17 | 2015-06-17 | Antioxidant alloy material for sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104999732A true CN104999732A (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510335497.7A Pending CN104999732A (en) | 2015-06-17 | 2015-06-17 | Antioxidant alloy material for sealing valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021100415A1 (en) * | 2019-11-21 | 2021-05-27 | 株式会社トクヤマ | Polycrystalline silicon production device and polycrystalline silicon production method |
-
2015
- 2015-06-17 CN CN201510335497.7A patent/CN104999732A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021100415A1 (en) * | 2019-11-21 | 2021-05-27 | 株式会社トクヤマ | Polycrystalline silicon production device and polycrystalline silicon production method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151028 |