CN116475269A - Production process of novel high-tightness anticorrosive material steel lining butterfly valve - Google Patents
Production process of novel high-tightness anticorrosive material steel lining butterfly valve Download PDFInfo
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- CN116475269A CN116475269A CN202310684904.XA CN202310684904A CN116475269A CN 116475269 A CN116475269 A CN 116475269A CN 202310684904 A CN202310684904 A CN 202310684904A CN 116475269 A CN116475269 A CN 116475269A
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- valve body
- steel
- lining
- tightness
- production process
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- 239000000463 material Substances 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 title claims description 99
- 239000010959 steel Substances 0.000 title claims description 99
- 238000004140 cleaning Methods 0.000 claims description 15
- 238000005266 casting Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 5
- 229910001347 Stellite Inorganic materials 0.000 claims description 5
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 239000010962 carbon steel Substances 0.000 claims description 5
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052715 tantalum Inorganic materials 0.000 claims description 5
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 239000003110 molding sand Substances 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 10
- 238000001035 drying Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
Abstract
The invention discloses a production process of a new high-tightness anticorrosion material steel-lined butterfly valve, which is applied to the technical field of butterfly valve production.
Description
Technical Field
The invention belongs to the technical field of butterfly valve production, and particularly relates to a production process of a new high-tightness anticorrosive material steel lining butterfly valve.
Background
The use characteristics of the butterfly valve are limited, and the butterfly valve is exposed to various use conditions when in use, but is not limited to one of the following, more particularly, the butterfly valve is limited to the use materials when in contact with a strong corrosive medium, and the butterfly valve is easily corroded by the strong corrosive medium, so that the butterfly valve is damaged and the tightness of the butterfly valve is reduced.
The problem can be found by combining the above problems, when the existing butterfly valve in the current market is used, the problems set forth above are difficult to avoid, so we propose a production process of a new high-tightness anticorrosion material steel liner butterfly valve for improving the anticorrosion performance of the butterfly valve.
Disclosure of Invention
The invention aims at the existing butterfly valve production process, and has the advantages that the butterfly valve is of a composite valve structure by lining corrosion-resistant steel in the butterfly valve, so that the flowing strong corrosion medium can only contact the lining layer in the whole process, the corrosion resistance is very reliable, the thickness of the lining steel is uniform, the combination of the lining steel and the inner wall of the valve body of the butterfly valve is tight and firm, and the use strength is ensured.
The technical aim of the invention is realized by the following technical scheme: a production process of a new high-tightness anticorrosive material steel lining butterfly valve comprises the following steps:
s1, valve body molding processing, namely preparing proper materials for processing and molding the valve body and other parts;
s2, processing valve body lining steel, and introducing a seamless pipe with proper lining steel and enough length into the processed valve body;
s3, lining steel material laminating treatment, namely sealing two ends of the lining steel material seamless pipe, and introducing a high-pressure medium into the lining steel material seamless pipe to enable the lining steel material seamless pipe to expand and deform until the lining steel material seamless pipe is completely laminated and covers the inner wall of the valve body;
s4, shaping the lining steel, cutting off excessive lining steel parts exposed outside, reserving part of the lining steel, and flanging the reserved part of the lining steel to enable the everting part to be tightly attached to the outer wall of the valve body;
s5, performing heat treatment on the valve body, and cleaning and performing heat treatment on the valve body after lining is finished;
s6, assembling the valve body, namely assembling the valve body with other parts, and performing air tightness detection treatment;
s7, valve body paint spraying treatment, wherein the required paint is sprayed on the valve body according to the use requirement.
By adopting the technical scheme, the inner lining of the butterfly valve is provided with the corrosion-resistant steel, so that the butterfly valve is of a composite valve structure, and therefore, the flowing strong corrosion medium can only contact the inner lining in the whole process, the corrosion resistance is very reliable, the thickness of the inner lining steel is uniform, the combination of the inner lining steel and the inner wall of the valve body of the butterfly valve is tight and firm, and the use strength is ensured.
The invention is further provided with: the valve body forming processing comprises the following steps of;
1) Preparing a proper material for casting the valve body;
2) Performing flaw detection treatment on the cast valve body by using ultrasonic flaw detection equipment;
3) Preparing a proper material for processing and forming the rest parts;
4) Welding the valve body and other parts;
5) Polishing the welding part of the valve by using polishing equipment.
By adopting the technical scheme, the service strength and the service life of the butterfly valve can be ensured by controlling the production flow of the valve component.
The invention is further provided with: and in the step S3, the high-pressure medium which is introduced into the seamless steel tube is hydraulic oil or soft mud.
By adopting the technical scheme, the high-pressure medium introduced into the inner lining steel seamless pipe adopts hydraulic oil or soft mud, so that the inner lining steel seamless pipe can deform under the action of pressure, and the inner wall of the valve body is attached to the inner wall of the valve body, and the use strength is ensured.
The invention is further provided with: the lining steel seamless tube is made of zirconium material, tantalum material or nickel-based alloy material.
By adopting the technical scheme, the lining steel seamless pipe is made of zirconium material, tantalum material or nickel-based alloy material, so that the corrosion resistance of the valve body can be improved, and the service life of the valve body can be prolonged.
The invention is further provided with: the valve body casting in the step 1) is made of spheroidal graphite cast iron, the spheroidal graphite cast iron is firstly placed into a melting furnace to be melted during casting, the temperature in the melting furnace is heated to 1250-1350 ℃, and a refining agent is added to obtain molten steel.
By adopting the technical scheme, the service strength and the service life of the butterfly valve can be ensured by controlling the casting forming process of the valve body.
The invention is further provided with: after the molten steel is poured into the molding sand, the temperature during pouring is 1650-1850 ℃, the pouring time is 30-35 seconds, and the temperature is kept for 30-35 minutes after the molten steel is poured.
By adopting the technical scheme, the service strength and the service life of the butterfly valve can be ensured by controlling the casting mode of the valve body.
The invention is further provided with: in the step S5, the quenching temperature is controlled to be 750-850 ℃ and the tempering temperature is controlled to be 620-650 ℃ in the heat treatment of the valve body.
By adopting the technical scheme, the use strength of the valve body can be improved by controlling the process flow of the heat treatment of the valve body, so that the valve body is not easy to damage.
The invention is further provided with: the steel of the rest parts of the valve in the step 2) is one or more of stellite, stainless acid-resistant steel, carbon steel and alloy steel.
By adopting the technical scheme, the steel of the rest parts of the valve is one or more of stellite, stainless acid-resistant steel, carbon steel and alloy steel, so that the use strength of the butterfly valve can be ensured.
The invention is further provided with: in the step S5, the valve body is cleaned by an ultrasonic cleaning device, and then dried after the cleaning is completed.
By adopting the technical scheme, the attached greasy dirt and production scraps of the valve body in the production process can be removed by cleaning and drying the valve body, so that the cleanness of the valve body is ensured.
The invention is further provided with: the valve body is cleaned by adding an organic solvent, soaking for no less than fifteen minutes, soaking water temperature is no less than 50 ℃, and hot air is adopted to dry the valve body, and hot air temperature is no less than seventy degrees.
By adopting the technical scheme, the cleaning and drying effects of the valve body can be improved by controlling the cleaning and drying conditions of the valve body.
In summary, the invention has the following beneficial effects:
1. the inner lining of the butterfly valve is provided with corrosion-resistant steel, so that the butterfly valve is of a composite valve structure, and therefore, the flowing strong corrosion medium can only contact the inner lining in the whole process, the corrosion resistance is very reliable, the thickness of the lining steel is uniform, the combination of the lining steel and the inner wall of the valve body of the butterfly valve is tight and firm, and the use strength is ensured;
2. by setting.
Drawings
FIG. 1 is a schematic diagram of the production process flow of a new high-tightness anticorrosive material steel-lined butterfly valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, a production process of a new high-tightness anticorrosive material steel lining butterfly valve comprises the following steps:
s1, valve body molding processing, namely preparing proper materials for processing and molding the valve body and other parts;
s2, processing valve body lining steel, and introducing a seamless pipe with proper lining steel and enough length into the processed valve body;
s3, lining steel material laminating treatment, namely sealing two ends of the lining steel material seamless pipe, and introducing a high-pressure medium into the lining steel material seamless pipe to enable the lining steel material seamless pipe to expand and deform until the lining steel material seamless pipe is completely laminated and covers the inner wall of the valve body;
s4, shaping the lining steel, cutting off excessive lining steel parts exposed outside, reserving part of the lining steel, and flanging the reserved part of the lining steel to enable the everting part to be tightly attached to the outer wall of the valve body;
s5, performing heat treatment on the valve body, and cleaning and performing heat treatment on the valve body after lining is finished;
s6, assembling the valve body, namely assembling the valve body with other parts, and performing air tightness detection treatment;
s7, valve body paint spraying treatment, according to the use requirement, spraying required paint on the valve body, and through the corrosion-resistant steel material in the inner lining of the butterfly valve, the butterfly valve is of a composite valve structure, so that the flowing strong corrosion medium can only contact the inner lining in the whole process, the corrosion resistance is very reliable, the thickness of the inner lining steel material is uniform, the combination of the inner lining steel material and the inner wall of the valve body of the butterfly valve is tight and firm, and the use strength is guaranteed.
The valve body forming processing comprises the following steps of;
1) Preparing a proper material for casting the valve body;
2) Performing flaw detection treatment on the cast valve body by using ultrasonic flaw detection equipment;
3) Preparing a proper material for processing and forming the rest parts;
4) Welding the valve body and other parts;
5) The polishing equipment is used for polishing the welding part of the valve, and the service strength and the service life of the butterfly valve can be ensured by controlling the production flow of the valve component.
In the step S3, the high-pressure medium which is introduced into the inner lining steel seamless pipe adopts hydraulic oil or soft mud, and the inner lining steel seamless pipe can be deformed under the action of pressure by adopting the hydraulic oil or the soft mud as the high-pressure medium which is introduced into the inner lining steel seamless pipe, so that the inner lining steel seamless pipe is attached to the inner wall of the valve body, and the use strength is ensured.
The lining steel seamless pipe is made of zirconium material, tantalum material or nickel-based alloy material, and the lining steel seamless pipe is made of zirconium material, tantalum material or nickel-based alloy material, so that the corrosion resistance of the valve body can be improved, and the service life of the valve body can be prolonged.
The valve body casting in the step 1) is made of spheroidal graphite cast iron, the spheroidal graphite cast iron is firstly placed into a melting furnace for melting during casting, the temperature in the melting furnace is heated to 1250-1350 ℃, a refining agent is added to obtain molten steel, and the service strength and the service life of the butterfly valve can be ensured by controlling the casting molding flow of the valve body.
After molten steel is poured into molding sand, the temperature during pouring is 1650-1850 ℃, the pouring time is 30-35 seconds, and after molten steel pouring is finished, the temperature is kept for 30-35 minutes, and the service strength and the service life of the butterfly valve can be ensured by controlling the casting mode of the valve body.
Example 2:
in the step S5, the quenching temperature is controlled to be 750-850 ℃ and the tempering temperature is controlled to be 620-650 ℃ in the heat treatment of the valve body, and the use strength of the valve body can be improved by controlling the process flow of the heat treatment of the valve body, so that the valve body is not easy to damage.
The steel of the rest parts of the valve in the step 2) is one or more of stellite alloy, stainless acid-resistant steel, carbon steel and alloy steel, and the use strength of the butterfly valve can be ensured by setting the steel of the rest parts of the valve to be one or more of stellite alloy, stainless acid-resistant steel, carbon steel and alloy steel.
In the step S5, the ultrasonic cleaning equipment is used for cleaning the valve body, drying treatment is carried out after the cleaning is finished, and the attached greasy dirt and production scraps of the valve body in the production process can be removed through cleaning and drying treatment of the valve body, so that the cleanness of the valve body is ensured.
The organic solvent is added during the valve body cleaning, the soaking time is not less than fifteen minutes, the soaking water temperature is not less than 50 ℃, the valve body is dried by adopting hot air, the temperature of the hot air is not less than seventy degrees, and the cleaning and drying effects of the valve body can be improved by controlling the cleaning and drying conditions of the valve body.
The use process is briefly described: preparing proper materials for casting the valve body, performing flaw detection on the cast valve body by using ultrasonic flaw detection equipment, performing processing and forming treatment on other parts on the prepared proper materials, then performing processing on the valve body lining steel, introducing a seamless pipe with proper lining steel and enough length into the valve body after processing, performing bonding treatment on the lining steel, closing two ends of the seamless pipe of the lining steel, introducing high-pressure medium into the seamless pipe of the lining steel, enabling the seamless pipe of the lining steel to expand and deform until the seamless pipe is completely bonded and covers the inner wall of the valve body, then performing shaping treatment on the lining steel, cutting off the excessive lining steel part exposed outside, reserving part of the lining steel, performing flanging treatment on the reserved part of the lining steel, enabling the everted part to be tightly attached to the outer wall of the valve body, then performing heat treatment on the valve body, cleaning and performing heat treatment, spraying paint on the valve body and other parts after the lining is completed, performing airtight detection treatment on the valve body, and then performing polishing treatment on the welded part of the valve body by using polishing equipment, and finally spraying the required paint on the valve body according to the use requirements.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (10)
1. A production process of a new high-tightness anticorrosive material steel lining butterfly valve is characterized by comprising the following steps of: the method comprises the following steps:
s1, valve body molding processing, namely preparing proper materials for processing and molding the valve body and other parts;
s2, processing valve body lining steel, and introducing a seamless pipe with proper lining steel and enough length into the processed valve body;
s3, lining steel material laminating treatment, namely sealing two ends of the lining steel material seamless pipe, and introducing a high-pressure medium into the lining steel material seamless pipe to enable the lining steel material seamless pipe to expand and deform until the lining steel material seamless pipe is completely laminated and covers the inner wall of the valve body;
s4, shaping the lining steel, cutting off excessive lining steel parts exposed outside, reserving part of the lining steel, and flanging the reserved part of the lining steel to enable the everting part to be tightly attached to the outer wall of the valve body;
s5, performing heat treatment on the valve body, and cleaning and performing heat treatment on the valve body after lining is finished;
s6, assembling the valve body, namely assembling the valve body with other parts, and performing air tightness detection treatment;
s7, valve body paint spraying treatment, wherein the required paint is sprayed on the valve body according to the use requirement.
2. The production process of the new high-tightness anticorrosive material steel lining butterfly valve according to claim 1, which is characterized by comprising the following steps: the valve body forming processing comprises the following steps of;
1) Preparing a proper material for casting the valve body;
2) Performing flaw detection treatment on the cast valve body by using ultrasonic flaw detection equipment;
3) Preparing a proper material for processing and forming the rest parts;
4) Welding the valve body and other parts;
5) Polishing the welding part of the valve by using polishing equipment.
3. The production process of the new high-tightness anticorrosive material steel lining butterfly valve according to claim 1, which is characterized by comprising the following steps: and in the step S3, the high-pressure medium which is introduced into the seamless steel tube is hydraulic oil or soft mud.
4. The production process of the new high-tightness anticorrosive material steel lining butterfly valve according to claim 1, which is characterized by comprising the following steps: the lining steel seamless tube is made of zirconium material, tantalum material or nickel-based alloy material.
5. The production process of the new high-tightness anticorrosive material steel lining butterfly valve is characterized by comprising the following steps of: the valve body casting in the step 1) is made of spheroidal graphite cast iron, the spheroidal graphite cast iron is firstly placed into a melting furnace to be melted during casting, the temperature in the melting furnace is heated to 1250-1350 ℃, and a refining agent is added to obtain molten steel.
6. The production process of the new high-tightness anticorrosive material steel lining butterfly valve is characterized by comprising the following steps of: after the molten steel is poured into the molding sand, the temperature during pouring is 1650-1850 ℃, the pouring time is 30-35 seconds, and the temperature is kept for 30-35 minutes after the molten steel is poured.
7. The production process of the new high-tightness anticorrosive material steel lining butterfly valve according to claim 1, which is characterized by comprising the following steps: in the step S5, the quenching temperature is controlled to be 750-850 ℃ and the tempering temperature is controlled to be 620-650 ℃ in the heat treatment of the valve body.
8. The production process of the new high-tightness anticorrosive material steel lining butterfly valve is characterized by comprising the following steps of: the steel of the rest parts of the valve in the step 2) is one or more of stellite, stainless acid-resistant steel, carbon steel and alloy steel.
9. The production process of the new high-tightness anticorrosive material steel lining butterfly valve according to claim 1, which is characterized by comprising the following steps: in the step S5, the valve body is cleaned by an ultrasonic cleaning device, and then dried after the cleaning is completed.
10. The production process of the new high-tightness anticorrosive material steel lining butterfly valve according to claim 9, which is characterized by comprising the following steps: the valve body is cleaned by adding an organic solvent, soaking for no less than fifteen minutes, soaking water temperature is no less than 50 ℃, and hot air is adopted to dry the valve body, and hot air temperature is no less than seventy degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310684904.XA CN116475269A (en) | 2023-06-12 | 2023-06-12 | Production process of novel high-tightness anticorrosive material steel lining butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310684904.XA CN116475269A (en) | 2023-06-12 | 2023-06-12 | Production process of novel high-tightness anticorrosive material steel lining butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116475269A true CN116475269A (en) | 2023-07-25 |
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ID=87221684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310684904.XA Pending CN116475269A (en) | 2023-06-12 | 2023-06-12 | Production process of novel high-tightness anticorrosive material steel lining butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116475269A (en) |
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2023
- 2023-06-12 CN CN202310684904.XA patent/CN116475269A/en active Pending
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