CN106678408A - Check valve body suitable for acid solutions - Google Patents

Check valve body suitable for acid solutions Download PDF

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Publication number
CN106678408A
CN106678408A CN201611182188.1A CN201611182188A CN106678408A CN 106678408 A CN106678408 A CN 106678408A CN 201611182188 A CN201611182188 A CN 201611182188A CN 106678408 A CN106678408 A CN 106678408A
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CN
China
Prior art keywords
parts
valve body
larger
less
check valve
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
Application number
CN201611182188.1A
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Chinese (zh)
Inventor
吴寿涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tongling Jingwei Fluid Technology Co Ltd
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Tongling Jingwei Fluid Technology Co Ltd
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Publication date
Application filed by Tongling Jingwei Fluid Technology Co Ltd filed Critical Tongling Jingwei Fluid Technology Co Ltd
Priority to CN201611182188.1A priority Critical patent/CN106678408A/en
Publication of CN106678408A publication Critical patent/CN106678408A/en
Pending legal-status Critical Current

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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
    • F16K27/00—Construction of housing; Use of materials therefor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
    • C08K5/523—Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • 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
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/56—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/267—Magnesium carbonate

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses a check valve body suitable for acid solutions. A method includes the steps of preparing and casting molten steel comprising, by weight percentage, C not less than 2.14% and not larger than 2.24%, Si not less than 0.45% and not larger than 0.65%, Mo not less than 0.5% and not larger than 0.7%, P not less than 0.015% and not larger than 0.035%, S not less than 0.015% and not larger than 0.035%, Cr not less than 0.75% and not larger than 0.95%, Co not less than 0.25% and not larger than 0.35%, Ni not less than 1.6% and not larger than 1.8%, Cu not less than a trace amount and not larger than 0.20%, and the balance iron and inevitable impurities. The alloy composition proportion of the valve body material is appropriate, an acid-resistant coating on the inner wall of the valve body has the acid-proof property, and therefore the check valve body suitable for the acid solutions is long in service life, safe and reliable.

Description

A kind of applicable acid solution check valve body
Technical field
The present invention relates to check-valves preparation field, particularly belongs to a kind of applicable acid solution check valve body.
Background technology
Check-valves are referred to and are flowed and automatic open and close flap by medium itself, for preventing the valve of medium refluence, also known as Non-return valve, check valve, reflux valve and counterbalance valve.Check-valves belong to a kind of automatic valve, and its Main Function is to prevent medium from falling Stream, prevent pump and drive motor reversion, and vessel media from releasing.When check-valves pass through acid solution, long-time work Work can cause valve interior wall seriously corroded.
The content of the invention
It is an object of the invention to provide a kind of applicable acid solution check valve body, valve body material alloying component proportioning is fitted When valve interior wall acid-proof coating has acid-resistant property, and long service life is safe and reliable.
Technical scheme is as follows：
A kind of applicable acid solution check valve body, with following steps：
a）Prepare and cast the molten steel with following percentage by weight：2.14%≤C≤2.24%, 0.45≤Si≤0.65%, 0.5% ≤ Mo≤0.7%, 0.015≤P≤0.035%, 0.015≤S≤0.035%, 0.75%≤Cr≤0.95%, 0.25%≤Co≤ 0.35%, 1.6≤Ni≤1.8%, trace≤Cu≤0.20%, balance of ferrum and inevitable impurity；
b）After pouring molten steel molding, valve body is heated to 550-600 DEG C and is incubated 1-1.2h, and oil cooling adds again to after 80-100 DEG C The temperature range of heat to 620 DEG C -660 DEG C is simultaneously incubated 0.6-0.9h, carries out Atmosphere controlling heat-treatment to body cavity during insulation It is to be passed through mixed gas in heat treated stove, in 90~120ml/min, propane intake is in 14~16ml/ for nitrogen intake min；
c）Acidproof japanning is sprayed to body cavity finally, acidproof japanning is composed of the following raw materials by weight：Hydrated basic magnesium carbonate 4-5 parts, triphenyl phosphate 24-26 parts, water soluble fluoridized resin 8-9 parts, calcium stearate 3.5-4.5 parts, apatite 1.5-2 Part, aerosil 5-7 parts, defoamer 2.2-3.2 parts, pigment 0.4-0.6 parts.
Described acidproof japanning is composed of the following raw materials by weight：4.5 parts of hydrated basic magnesium carbonate, triphenyl phosphate 25 Part, 8.5 parts of water soluble fluoridized resin, 4 parts of calcium stearate, 1.8 parts of apatite, 6 parts of aerosil, 2.7 parts of defoamer, 0.5 part of pigment.
Valve body material alloying component proportioning of the present invention is appropriate, and valve interior wall acid-proof coating has acid-resistant property, service life It is long, it is safe and reliable.
Specific embodiment
A kind of applicable acid solution check valve body, with following steps：
a）Prepare and cast the molten steel with following percentage by weight：2.14%≤C≤2.24%, 0.45≤Si≤0.65%, 0.5% ≤ Mo≤0.7%, 0.015≤P≤0.035%, 0.015≤S≤0.035%, 0.75%≤Cr≤0.95%, 0.25%≤Co≤ 0.35%, 1.6≤Ni≤1.8%, trace≤Cu≤0.20%, balance of ferrum and inevitable impurity；
b）After pouring molten steel molding, valve body is heated to 550-600 DEG C and is incubated 1-1.2h, and oil cooling adds again to after 80-100 DEG C The temperature range of heat to 620 DEG C -660 DEG C is simultaneously incubated 0.6-0.9h, carries out Atmosphere controlling heat-treatment to body cavity during insulation It is to be passed through mixed gas in heat treated stove, in 90~120ml/min, propane intake is in 14~16ml/ for nitrogen intake min；
c）Acidproof japanning is sprayed to body cavity finally, acidproof japanning is composed of the following raw materials by weight：Hydrated basic magnesium carbonate 4.5 parts, 25 parts of triphenyl phosphate, 8.5 parts of water soluble fluoridized resin, 4 parts of calcium stearate, 1.8 parts of apatite, gas phase titanium dioxide 6 parts of silicon, 2.7 parts of defoamer, 0.5 part of pigment.
Properties according to check valve body detection obtained in the embodiment of the present invention are as follows：Tensile strength Rm >= 560Mpa, yield strength Re >=340Mpa, impact absorbing energy Akv >=23J.Soak 30-40 days in high-concentration acidic wastewater solution, it is interior The corrosion-free phenomenon of wall.

Claims (2)

1. a kind of applicable acid solution check valve body, it is characterised in that with following steps：
a）Prepare and cast the molten steel with following percentage by weight：2.14%≤C≤2.24%, 0.45≤Si≤0.65%, 0.5% ≤ Mo≤0.7%, 0.015≤P≤0.035%, 0.015≤S≤0.035%, 0.75%≤Cr≤0.95%, 0.25%≤Co≤ 0.35%, 1.6≤Ni≤1.8%, trace≤Cu≤0.20%, balance of ferrum and inevitable impurity；
b）After pouring molten steel molding, valve body is heated to 550-600 DEG C and is incubated 1-1.2h, and oil cooling adds again to after 80-100 DEG C The temperature range of heat to 620 DEG C -660 DEG C is simultaneously incubated 0.6-0.9h, carries out Atmosphere controlling heat-treatment to body cavity during insulation It is to be passed through mixed gas in heat treated stove, in 90~120ml/min, propane intake is in 14~16ml/ for nitrogen intake min；
c）Acidproof japanning is sprayed to body cavity finally, acidproof japanning is composed of the following raw materials by weight：Hydrated basic magnesium carbonate 4-5 parts, triphenyl phosphate 24-26 parts, water soluble fluoridized resin 8-9 parts, calcium stearate 3.5-4.5 parts, apatite 1.5-2 Part, aerosil 5-7 parts, defoamer 2.2-3.2 parts, pigment 0.4-0.6 parts.
2. acid solution check valve body is suitable for according to claim 1, it is characterised in that described acidproof japanning is by following Raw material is constituted：4.5 parts of hydrated basic magnesium carbonate, 25 parts of triphenyl phosphate, 8.5 parts of water soluble fluoridized resin, Hard Fat 4 parts of sour calcium, 1.8 parts of apatite, 6 parts of aerosil, 2.7 parts of defoamer, 0.5 part of pigment.
CN201611182188.1A 2016-12-20 2016-12-20 Check valve body suitable for acid solutions Pending CN106678408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611182188.1A CN106678408A (en) 2016-12-20 2016-12-20 Check valve body suitable for acid solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611182188.1A CN106678408A (en) 2016-12-20 2016-12-20 Check valve body suitable for acid solutions

Publications (1)

Publication Number Publication Date
CN106678408A true CN106678408A (en) 2017-05-17

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CN201611182188.1A Pending CN106678408A (en) 2016-12-20 2016-12-20 Check valve body suitable for acid solutions

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107747642A (en) * 2017-11-14 2018-03-02 曹安飞 A kind of corrosion-and high-temp-resistant valve of gas pipeline

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102994890A (en) * 2012-09-29 2013-03-27 铜陵国方水暖科技有限责任公司 Casting method of valve body of anti-explosion valve
CN104214392A (en) * 2014-08-26 2014-12-17 苏州孚杰机械有限公司 Production method of large-sized acid-resistant valve body
CN104907498A (en) * 2015-04-23 2015-09-16 苏州劲元油压机械有限公司 Casting technology of hydraulic valve
CN105255349A (en) * 2015-11-09 2016-01-20 江苏有能电力自动化有限公司 Corrosion-resistant and wear-resistant multi-ported valve
CN105861923A (en) * 2016-05-23 2016-08-17 安徽鑫宏机械有限公司 Casting method for seawater-corrosion-resistant composite ball valve body
CN105908078A (en) * 2016-06-20 2016-08-31 马鞍山市益丰实业集团有限公司 Preparation method for wear-resistant ball with wear-resistant coating

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102994890A (en) * 2012-09-29 2013-03-27 铜陵国方水暖科技有限责任公司 Casting method of valve body of anti-explosion valve
CN104214392A (en) * 2014-08-26 2014-12-17 苏州孚杰机械有限公司 Production method of large-sized acid-resistant valve body
CN104907498A (en) * 2015-04-23 2015-09-16 苏州劲元油压机械有限公司 Casting technology of hydraulic valve
CN105255349A (en) * 2015-11-09 2016-01-20 江苏有能电力自动化有限公司 Corrosion-resistant and wear-resistant multi-ported valve
CN105861923A (en) * 2016-05-23 2016-08-17 安徽鑫宏机械有限公司 Casting method for seawater-corrosion-resistant composite ball valve body
CN105908078A (en) * 2016-06-20 2016-08-31 马鞍山市益丰实业集团有限公司 Preparation method for wear-resistant ball with wear-resistant coating

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107747642A (en) * 2017-11-14 2018-03-02 曹安飞 A kind of corrosion-and high-temp-resistant valve of gas pipeline
CN107747642B (en) * 2017-11-14 2019-06-14 曹安飞 A kind of corrosion-and high-temp-resistant valve of gas pipeline

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Application publication date: 20170517

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