CN106321864A - Corrosion-resistance self-sealing water draining valve - Google Patents
Corrosion-resistance self-sealing water draining valve Download PDFInfo
- Publication number
- CN106321864A CN106321864A CN201610674274.8A CN201610674274A CN106321864A CN 106321864 A CN106321864 A CN 106321864A CN 201610674274 A CN201610674274 A CN 201610674274A CN 106321864 A CN106321864 A CN 106321864A
- Authority
- CN
- China
- Prior art keywords
- top cover
- valve
- cast iron
- iron
- corrosion
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 title claims abstract description 13
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052729 chemical element Inorganic materials 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 239000011651 chromium Substances 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 7
- 239000011733 molybdenum Substances 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 7
- 239000010936 titanium Substances 0.000 claims abstract description 7
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 claims abstract 2
- 241000283216 Phocidae Species 0.000 claims description 14
- 238000005275 alloying Methods 0.000 claims description 12
- 238000007670 refining Methods 0.000 claims description 9
- 238000010792 warming Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 7
- 229910000805 Pig iron Inorganic materials 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- -1 Polyethylene Polymers 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 8
- 230000001681 protective effect Effects 0.000 abstract 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 238000004381 surface treatment Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2007—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member specially adapted operating means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2014—Shaping of the valve member
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2042—Special features or arrangements of the sealing
- F16K1/205—Special features or arrangements of the sealing the sealing being arranged on the valve member
-
- 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
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/005—Particular materials for seats or closure elements
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0227—Check valves or pivoted valves with the valve members swinging around an axis located at the edge of or outside the valve member
-
- 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
- F16K31/44—Mechanical actuating means
- F16K31/46—Mechanical actuating means for remote operation
- F16K31/465—Mechanical actuating means for remote operation by flexible transmission means, e.g. cable, chain, bowden wire
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Valve Housings (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a corrosion-resistance self-sealing water draining valve. The valve comprises a cylindrical valve body formed by cast iron; an opening edge of a water inlet end of the valve body is connected with a top cover formed by the cast iron through a hinge arc arm; a sealing rubber pad is arranged on the inner side of the top cover, and is fixed on the inner side surface of the top cover through an annular gasket formed by the cast iron; bolt holes are respectively formed in the top cover and the annular gasket; the top cover and the annular gasket can be detachably connected through the bolt holes; a traction handle is arranged at one end, far from the hinge arc arm, of the outer wall of the top cover; and a rope hole is formed in the traction handle. The cast iron material contains the following chemical elements in percentage by mass: 0.2-0.4 of carbon, 0.6-0.8 of silicon, 1.7-1.9 of manganese, 2.6-2.8 of chromium, 0.8-1.2 of molybdenum, 0.5-0.7 of titanium, 0.04-0.07 of Be, S not more than 0.04, P not more than 0.04, and the balance of iron; and multiple layers of corrosion-resistance protective films are formed on the surface of the cast iron when all parts are formed. The valve is not easy to generate rust when being eroded in water for a long time, and adopts the unique material surface treatment process to form multiple layers of protective films on the surface to further enhance the corrosion resistance.
Description
Technical field
The present invention relates to valve field, be specifically related to a kind of can erosion for a long time in water, be difficult to the anticorrosive from close of corrosion
Envelope Draw off valve.
Background technology
For controlling the valve of current discharge owing to being immersed in for a long time in water, contacting with the corrosive deposit such as empty gas and water
Easily cause corrosion and corrosion, reduce its service life.
Summary of the invention
For solving the defect that above-mentioned technology exists, the invention provides a kind of can erosion for a long time in water, be difficult to corrosion
Anticorrosive self sealss Draw off valve.
The present invention realizes the technical scheme that above-mentioned technique effect used:
A kind of anticorrosive self sealss Draw off valve, the tubular valve body constituted including a cast iron, the water inlet end of described valve body
Connected the top cover having a cast iron to make in opening's edge by hinged arc arm, the inner side of described top cover is provided with sealing rubber pad, described sealing
Rubber blanket is fixed on the medial surface of described top cover, described top cover and described ring washer all by the ring washer that a cast iron is made
It is provided with bolt hole, described top cover and described ring washer and carries out detachable connection, described top cover by the bolt in bolt hole
Outer wall be provided with tow handle in the one end away from described hinged arc arm, described tow handle is provided with cord hole.
Above-mentioned one anticorrosive self sealss Draw off valve, the outer wall of described top cover is provided with reinforcement, and described reinforcement is even
Connecing described tow handle and extend towards described hinged arc arm, elongated end constitutes the hinged seat hinged with described hinged arc arm.
Above-mentioned one anticorrosive self sealss Draw off valve, the chemical element contained for casting the cast iron of described valve becomes
Divide and mass percent is: carbon 0.2-0.4, silicon 0.6-0.8, manganese 1.7-1.9, chromium 2.6-2.8, molybdenum 0.8-1.2, titanium 0.5-
0.7, Be0.04-0.07, S≤0.04, P≤0.04, surplus are ferrum.
Above-mentioned one anticorrosive self sealss Draw off valve, the production method of described cast iron includes:
(1), prepare the pig iron and scrap iron in 1:1-2 ratio as ferrous substrate source, add to put in stove by the pig iron and melt, enter
Row desulfurization, deoxidation, employing refining agent initial refining, interpolation alloying component carry out alloying, add scrap iron fusing, add refine
Agent double refining, detect and adjust chemical element component content to the most qualified, cast, cast after-baking etc.；
(2) lot sequence, putting into alloying element in alloying process in stove is: 1) silicon, manganese, titanium；2) chromium, molybdenum, Be；
It is 30-35 minute that each batch puts into the time interval of element, stirs and at each parts constituting described valve after feeding intake
Corresponding mould is shaped to corresponding parts.
(3) the casting after-baking of each parts, constituting described valve is: first by room temperature with 220-250 DEG C/h of speed
It is warming up to 925-935 DEG C, is incubated 3-4 hour；Being cooled to 600-610 DEG C with 140-160 DEG C/h of speed again, insulation 40-60 divides
Clock；It is cooled to 300-320 DEG C with 100-120 DEG C/h of speed again, is incubated 2-3 hour；Again with 150-170 DEG C/h of speed liter
Temperature, to 520-540 DEG C, is incubated 2-3 hour, is then naturally cooling to 130-140 DEG C and keeps；
(4), add in mould mould accordingly at each parts constituting described valve, equal in each bottom adding mould mould accordingly
Even layer overlay ultrahigh molecular weight polyethylene powder, is placed in temperature and is maintained at each corresponding parts of 130-140 DEG C and closes
Mould, and polyethylene powder is carried out vapour-pressure type compacting, the then air in pressure relief release die cavity；
(5), be forced in step (4) 3～4MPa and synchronization be warming up to 120～150 DEG C, then repressurization to 12～
15MPa constant temperature pressurize 50～60 minutes；Repressurization is to 30～35MPa, and is warming up to 220～250 DEG C, then heat-insulation pressure keeping 20
～25 minutes, then pressurize is cooled to 40～50 DEG C, the last demoulding naturally cools to room temperature.
The invention have the benefit that the valve of the present invention is consisted of tubular valve body and top cover, the gravity of available water
Effect, it is achieved tubular valve body is combined closely with top cover, it is to avoid leak.Top cover that wherein sealing rubber pad, cast iron are made and annular
Packing ring three is fixed by many bolts, it is simple to detachable maintaining, changes sealing rubber pad, and ring washer also can preferably play simultaneously
Sealing function.The tow handle of the band cord hole on top cover, it is possible to use rope carries out pulling unlatching, utilizes lever the most cleverly
Principle, it is easier to open water valve.The cast steel material of special formulation and unique material surface process technique so that each the zero of valve
Parts can corrode for a long time and be difficult to corrosion in water, and unique material surface processes technique, make valve surface form multilamellar protection
Film, further enhancing corrosion resistance.
Accompanying drawing explanation
Fig. 1 is the structural representation of valve of the present invention.
In figure: 1-valve body, 2-hinged arc arm, 3-top cover, 4-tow handle, 5-ring washer, 6-sealing rubber pad, 7-spiral shell
Bolt, 41-cord hole.
Detailed description of the invention
More clearly manage in order to technical characteristic, purpose and the effect of the anticorrosive self sealss Draw off valve of the present invention are had
Solving, now comparison accompanying drawing describes the specific embodiment of anticorrosive self sealss Draw off valve of the present invention in detail.
As it is shown in figure 1, a kind of anticorrosive self sealss Draw off valve, the tubular valve body 1 constituted including a cast iron, valve body 1
Connected the top cover 3 having a cast iron to make by hinged arc arm 2 in the opening's edge of water inlet end.The inner side of top cover 3 is provided with sealing rubber pad 6,
This sealing rubber pad 6 is fixed on the medial surface of top cover 3, top cover 3 and ring washer 5 all by the ring washer 5 that a cast iron is made
It is provided with bolt hole, top cover 3 and ring washer 5 and carries out detachable connection by the bolt 7 in bolt hole.The outer wall of top cover 3 exists
One end away from hinged arc arm 2 is provided with tow handle 4, and this tow handle 4 is provided with cord hole 41, can be tied up to by rope during use
In this cord hole 41, by pulling unlatching top cover 3.The outer wall of top cover 3 is provided with reinforcement (not shown), and reinforcement connects traction
Handle 4 also extends towards hinged arc arm 2, and elongated end constitutes the hinged seat hinged with hinged arc arm 2.
Concrete, in above-mentioned one anticorrosive self sealss Draw off valve, contain for casting the cast iron of above-mentioned valve
Chemical element component and mass percent be: carbon 0.2-0.4, silicon 0.6-0.8, manganese 1.7-1.9, chromium 2.6-2.8, molybdenum 0.8-
1.2, titanium 0.5-0.7, Be0.04-0.07, S≤0.04, P≤0.04, surplus are ferrum.
Include for casting the production method of the cast iron of above-mentioned valve:
(1), prepare the pig iron and scrap iron in 1:1-2 ratio as ferrous substrate source, add to put in stove by the pig iron and melt, enter
Row desulfurization, deoxidation, employing refining agent initial refining, interpolation alloying component carry out alloying, add scrap iron fusing, add refine
Agent double refining, detect and adjust chemical element component content to the most qualified, cast, cast after-baking etc.；
(2) lot sequence, putting into alloying element in alloying process in stove is: 1) silicon, manganese, titanium；2) chromium, molybdenum, Be；
It is 30-35 minute that each batch puts into the time interval of element, stirs and at each parts constituting described valve after feeding intake
Corresponding mould is shaped to corresponding parts.
(3) the casting after-baking of each parts, constituting described valve is: first by room temperature with 220-250 DEG C/h of speed
It is warming up to 925-935 DEG C, is incubated 3-4 hour；Being cooled to 600-610 DEG C with 140-160 DEG C/h of speed again, insulation 40-60 divides
Clock；It is cooled to 300-320 DEG C with 100-120 DEG C/h of speed again, is incubated 2-3 hour；Again with 150-170 DEG C/h of speed liter
Temperature, to 520-540 DEG C, is incubated 2-3 hour, is then naturally cooling to 130-140 DEG C and keeps；
(4), add in mould mould accordingly at each parts constituting described valve, equal in each bottom adding mould mould accordingly
Even layer overlay ultrahigh molecular weight polyethylene powder, is placed in temperature and is maintained at each corresponding parts of 130-140 DEG C and closes
Mould, and polyethylene powder is carried out vapour-pressure type compacting, the then air in pressure relief release die cavity；
(5), be forced in step (4) 3～4MPa and synchronization be warming up to 120～150 DEG C, then repressurization to 12～
15MPa constant temperature pressurize 50～60 minutes；Repressurization is to 30～35MPa, and is warming up to 220～250 DEG C, then heat-insulation pressure keeping 20
～25 minutes, then pressurize is cooled to 40～50 DEG C, the last demoulding naturally cools to room temperature.
In sum, the valve of the present invention is easy to use, revolving spanner labor-saving opening, the cast steel material of special formulation
Technique is processed so that each parts of valve can corrode for a long time and be difficult to corrosion in water with unique material surface, unique
Material surface processes technique, makes valve surface form multilayer resist, further enhancing corrosion resistance.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
The personnel simply present invention it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description
Principle, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, these change and
Improvement both falls within the range of claimed invention, the protection domain of application claims by appending claims and
Equivalent defines.
Claims (4)
1. an anticorrosive self sealss Draw off valve, it is characterised in that include the tubular valve body that a cast iron is constituted, described valve body
Connected the top cover having a cast iron to make in the opening's edge of water inlet end by hinged arc arm, the inner side of described top cover is provided with sealing rubber pad,
Described sealing rubber pad is fixed on the medial surface of described top cover, described top cover and described annular by the ring washer that a cast iron is made
It is equipped with bolt hole, described top cover and described ring washer on packing ring and carries out detachable connection by the bolt in bolt hole,
The outer wall of described top cover is provided with tow handle in the one end away from described hinged arc arm, and described tow handle is provided with cord hole.
One the most according to claim 1 anticorrosive self sealss Draw off valve, it is characterised in that the outer wall of described top cover sets
Having reinforcement, described reinforcement connects described tow handle and extends towards described hinged arc arm, and elongated end is constituted and described hinge
Connect the hinged seat that arc arm is hinged.
One the most according to claim 1 anticorrosive self sealss Draw off valve, it is characterised in that be used for casting described valve
The chemical element component that contains of cast iron and mass percent be: carbon 0.2-0.4, silicon 0.6-0.8, manganese 1.7-1.9, chromium 2.6-
2.8, molybdenum 0.8-1.2, titanium 0.5-0.7, Be0.04-0.07, S≤0.04, P≤0.04, surplus are ferrum.
One the most according to claim 3 anticorrosive self sealss Draw off valve, it is characterised in that the producer of described cast iron
Method includes:
(1), prepare the pig iron and scrap iron in 1:1-2 ratio as ferrous substrate source, add to put in stove by the pig iron and melt, take off
Sulfur, deoxidation, employing refining agent initial refining, interpolation alloying component carry out alloying, add scrap iron fusing, add refining agent two
Secondary refine, detect and adjust chemical element component content to the most qualified, cast, cast after-baking etc.；
(2) lot sequence, putting into alloying element in alloying process in stove is: 1) silicon, manganese, titanium；2) chromium, molybdenum, Be；Each batch
The time interval of secondary input element is 30-35 minute, stirs and corresponding at each parts constituting described valve after feeding intake
Mould in be shaped to corresponding parts.
(3) the casting after-baking of each parts, constituting described valve is: first by room temperature with 220-250 DEG C/h of ramp
To 925-935 DEG C, it is incubated 3-4 hour；It is cooled to 600-610 DEG C with 140-160 DEG C/h of speed again, is incubated 40-60 minute；
It is cooled to 300-320 DEG C with 100-120 DEG C/h of speed again, is incubated 2-3 hour；Again with 150-170 DEG C/h of ramp
To 520-540 DEG C, it is incubated 2-3 hour, is then naturally cooling to 130-140 DEG C and keeps；
(4), add in mould mould accordingly at each parts constituting described valve, in each bottom even paving adding mould mould accordingly
Last layer ultrahigh molecular weight polyethylene powder, is placed in temperature and is maintained at each corresponding parts of 130-140 DEG C and carries out matched moulds, and
Polyethylene powder is carried out vapour-pressure type compacting, the then air in pressure relief release die cavity；
(5), be forced in step (4) 3～4MPa and synchronization be warming up to 120～150 DEG C, then repressurization is to 12～15MPa
And constant temperature pressurize 50～60 minutes；Repressurization is to 30～35MPa, and is warming up to 220～250 DEG C, then heat-insulation pressure keeping 20～25
Minute, then pressurize is cooled to 40～50 DEG C, the last demoulding naturally cools to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674274.8A CN106321864A (en) | 2016-08-16 | 2016-08-16 | Corrosion-resistance self-sealing water draining valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674274.8A CN106321864A (en) | 2016-08-16 | 2016-08-16 | Corrosion-resistance self-sealing water draining valve |
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| CN106321864A true CN106321864A (en) | 2017-01-11 |
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|---|---|---|---|
| CN201610674274.8A Pending CN106321864A (en) | 2016-08-16 | 2016-08-16 | Corrosion-resistance self-sealing water draining valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242781A (en) * | 2019-04-24 | 2019-09-17 | 福建大通互惠精密铸造有限公司 | A kind of super-duplex stainless steel 5A material butterfly valve body and manufacturing method |
-
2016
- 2016-08-16 CN CN201610674274.8A patent/CN106321864A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242781A (en) * | 2019-04-24 | 2019-09-17 | 福建大通互惠精密铸造有限公司 | A kind of super-duplex stainless steel 5A material butterfly valve body and manufacturing method |
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Application publication date: 20170111 |